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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.</span><span class="s_AA239
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.</span><span class="s_AA239
Storm loading has added additional stress to a persistent weak layer of surface hoar or a sun crust which now lie up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
Loading from new snow and wind will continue to add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be surprisingly large.
Buried wind slabs (originally formed in late January) are still are concern in steep features in the alpine and at treeline. These slabs are found down 30 to 60cm in the snowpack and are likely more trigger-able from shallow snowpack areas.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer. This layer has been most reactive at and below treeline.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer. This layer seems most reactive at and below treeline.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be surprisingly large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Storm loading has added additional stress to a persistent weak layer of surface hoar or a sun crust which now lie up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
Buried wind slabs (originally formed in late January) are still are concern in steep features in the alpine and at treeline. These slabs are found down 30 to 60cm in the snowpack and are likely more trigger-able from shallow snowpack areas.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer. This layer seems most reactive at and below treeline.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down close to 100 cm in some areas. This weakness has been susceptible to triggering by light loads or from a distance, particularly in sheltered areas at and below treeline.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
A weak layer of surface hoar buried on February 12th continues to react to skier triggering, particularly in the north of the region. See the forecast details page for recent incident reports.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
Buried wind slabs (originally formed in late January) are still are concern in steep features in the alpine and at treeline. These slabs are found down 30 to 60cm in the snowpack and are likely more trigger-able from shallow snowpack areas.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down close to 100 cm in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
An assortment of persistent weaknesses lurk in the top 100cm. Most notably is surface hoar buried early last week, which is most concerning in sheltered treeline areas.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Buried wind slabs (originally formed in late January) are still are concern in steep features in the alpine and at treeline. These slabs are found down 20 to 50cm in the snowpack and are likely more trigger-able from shallow snowpack areas.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies up to 100cm below the surface. Triggering this weakness may result in large and dangerous avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down close to 100 cm in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weaknesses buried last week</span><span class="s_AA239A9B"> demand respect, as they are very touchy and are causing surprisingly large avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weaknesses buried last week demand respect, as they are very touchy, can be triggered from a distance, and are leading to surprisingly large avalanches. </span><span class="s_AA239
Buried wind slabs (originally formed in late January) are still are concern in steep features in the alpine and at treeline. These slabs are found down 20 to 50cm in the snowpack and are likely more trigger-able from shallow snowpack areas.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weaknesses buried last week</span><span class="s_AA239A9B"> demand respect, as they are very touchy and are causing surprisingly large avalanches.
="s_3FE45715">Persistent weaknesses buried last week are extremely touchy, can be triggered from a distance, and may create surprisingly large avalanches.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies 100cm or more below the surface. Triggering this weakness will result in large and dangerous avalanches.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now 100 cm or more in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">Persistent weaknesses buried last week are extremely touchy, can be triggered from a distance, and may create surprisingly large avalanches.
Buried wind slabs (originally formed in late January) are still a concern in steep features in the alpine and at treeline. These slabs are found down 30 to 60cm in the snowpack. Additional load may make these easier to trigger.
="s_3FE45715">Persistent weaknesses have been touchy recently and can increase the size and consequence of avalanches.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large large slab avalanches. The weak layers may be more reactive with additional loading from new snow, wind and rising freezIng levels.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies 100cm or more below the surface. Triggering this weakness will result in large and dangerous avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now 100 cm or more in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large large slab avalanches. The weak layers may be more reactive with additional loading from new snow, and wind.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large and destructive.
="s_3FE45715">Persistent weaknesses have been touchy recently and can increase the size and consequence of avalanches.
="s_3FE45715">Persistent weaknesses have been touchy recently and can increase the size and consequence of avalanches.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 - 150 cm.  The coming days will reveal more about the sensitivity of this layer, but it's still suspect at the present time.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches. The weak layers may be more reactive with additional loading from new snow, and wind.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large and destructive.
An assortment of persistent weaknesses lurk in the top 100cm. Most notably is surface hoar buried early last week as well as the week before, which are most concerning in sheltered treeline areas.
="s_3FE45715">80-120 cm of settling storm snow sits on a persistent weak layer (surface hoar or crust). Triggering this layer is becoming less likely but extra caution should be given on all slopes over 30 degrees that did not previously slide.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large and destructive.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 - 150 cm. The coming days will reveal more about the sensitivity of this layer, but it's still suspect at the present time.
="s_3FE45715">A buried persistent weak layer of surface hoar (shady slopes) or a sun crust (sunny slopes) is now down 100-200 cm. It may be possible to trigger this layer in steep rocky terrain. The resulting avalanche could have serious consequences.
="s_3FE45715">60-120 cm of settling storm snow sits on a persistent weak layer (surface hoar or crust). Triggering this layer is becoming less likely but extra caution should be given on all slopes over 30 degrees that did not previously slide.
="s_3FE45715">There is a weak layer of buried surface hoar down about 100-150 cms that may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion. Strong solar radiation may initiate this layer where it sits on a crust.
Persistent weak layers exist buried down 60-100 cm, comprising of surface hoar and a sun crust. Avalanches failing on these layers will likely be large and destructive.
="s_3FE45715">There is a weak layer of surface hoar buried down about 100-150 cms (February 12th layer) that may continue to be triggered by large forces like cornice fall or storm snow avalanches in motion.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches.
="s_3FE45715">There is a weak layer of buried surface hoar that is now down about 100-150 cms. that may be triggered by large forces like cornice fall or storm snow avalanches in motion.
="s_3FE45715">There is a weak layer of buried surface hoar down about 100-150 cms that may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion. Strong solar radiation may initiate this layer where it sits on a crust.
="s_3FE45715">There is a weak layer of buried surface hoar that is now down about 100-150 cms. that may be triggered by large forces like cornice fall or storm snow avalanches in motion. Lighter loads may trigger this layer on Southerly aspects with a buried crust
="s_3FE45715">There is a weak layer of surface hoar buried down about 100-150 cms (February 12th layer) that may continue to be triggered by large forces like cornice fall or storm snow avalanches in motion.
="s_3FE45715">A buried persistent weak layer of surface hoar (shady slopes) or a sun crust (sunny slopes) is now down 100-200 cm. It may be possible to trigger this layer in steep rocky terrain. The resulting avalanche could have serious consequences.
="s_3FE45715">60-120 cm of settling storm snow sits on a persistent weak layer (surface hoar or crust). Triggering this layer is becoming less likely but extra caution should be given on all slopes over 30 degrees that did not previously slide.
Persistent weak layers exist buried down 60-100 cm, comprising of surface hoar and a sun crust. Avalanches failing on these layers will likely be large and destructive.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches.
="s_3FE45715">There is a weak layer of buried surface hoar down about 100-150 cms that may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion. Strong solar radiation may initiate this layer where it sits on a crust.
="s_3FE45715">A buried persistent weak layer of surface hoar (shady slopes) or a sun crust (sunny slopes) is now down 100-200 cm. It may be possible to trigger this layer in steep rocky terrain. The resulting avalanche could have serious consequences.
="s_3FE45715">60-120 cm of settling storm snow sits on a persistent weak layer of surface hoar. Extra caution should be given on all slopes over 30 degrees that did not previously slide, especially if the sun comes out.
="s_3FE45715">There is a weak layer of buried surface hoar that is now down about 100-150 cms. that may be triggered by large forces like cornice fall or storm snow avalanches in motion. Lighter loads may trigger this layer on Southerly aspects with a buried crust
="s_3FE45715">There is a weak layer of surface hoar buried down about 100-150 cms (February 12th layer) that may continue to be triggered by large forces like cornice fall or storm snow avalanches in motion.
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer. 
="s_3FE45715">The 80 cm deep surface hoar/sun crust weak layer could be triggered by a cornice fall or an avalanche stepping down from the storm snow. Be aware of the sun and warmth weakening the snowpack and cornices on Friday afternoon and Saturday.
="s_3FE45715">There is a weak layer of buried surface hoar down about 100-150 cms that may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion. Strong solar radiation may initiate this layer where it sits on a crust.
="s_3FE45715">There is a weak layer of surface hoar buried down about 100-150 cms (February 12th layer) that may continue to be triggered by large forces like cornice fall or storm snow avalanches in motion.
="s_3FE45715">There is a weak layer of buried surface hoar that is now down about 100-150 cms. that may be triggered by large forces like cornice fall or storm snow avalanches in motion. Lighter loads may trigger this layer on Southerly aspects with a buried crust
="s_3FE45715">A buried layer of surface hoar or a sun crust is now down 100-200 cm. It may be possible to trigger this layer in steep terrain, especially with forecast warming. The resulting avalanche could have serious consequences.
="s_3FE45715">60-120 cm of settled snow sits on a persistent layer of surface hoar. Extra caution should be given on all slopes over 30 degrees that did not previously slide, especially with solar warming on Saturday..
="s_3FE45715">The 80 cm deep surface hoar/sun crust weak layer could be triggered by a cornice fall or an avalanche stepping down from the storm snow. Be aware of the sun and warmth weakening the snowpack and cornices.
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer..
="s_3FE45715">A weak layer of buried surface hoar down about 100-150 cm may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion. Strong solar radiation may initiate this layer where it sits on a crust.
="s_3FE45715">A weak layer of buried surface hoar is now down about 100-150 cm and may be triggered by large forces like cornice fall or storm snow avalanches in motion. Lighter loads may trigger this layer on Southerly aspects due to a buried sun crust.
="s_3FE45715">A weak layer of surface hoar buried down about 100-150 cm (February 12th layer) may continue to be triggered by large forces like cornice fall or storm snow avalanches in motion.
="s_3FE45715">A buried layer of surface hoar or a sun crust is now down 100-200 cm. Triggering this layer has become unlikely; however, the consequences of a release would be significant.
="s_3FE45715">60-120 cm of snow sits on a persistent layer of surface hoar that was highly reactive last week. Extra caution should be given on unsupported slopes over 30 degrees that did not previously slide.
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer.
="s_3FE45715">The 80 cm deep surface hoar/sun crust weak layer could be triggered by a cornice fall or an slab avalanche stepping down.
This layer (Feb HSL) has been a suspected failure plain in a number of avalanches lately. A fresh sz2 on Little Tent Ridge was observed at TL elev and very skiable terrain.
="s_3FE45715">A weak layer of buried surface hoar down about 100-150 cm may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion.
="s_3FE45715">A weak layer of buried surface hoar is now down about 100-150 cm and may be triggered by large forces like cornice fall or storm snow avalanches in motion. Lighter loads may trigger this layer on Southerly aspects due to a buried sun crust.
="s_3FE45715">A weak layer of surface hoar buried down about 100-150 cm (February 12th layer) may continue to be triggered by large forces like cornice fall or storm snow avalanches in motion.
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer.
="s_3FE45715">The 80 cm deep surface hoar/sun crust weak layer could be triggered by a cornice fall or an slab avalanche stepping down.
This layer (Feb HSL) has been a suspected failure plain in a number of avalanches lately. A fresh sz2 on Little Tent Ridge was observed at TL elev in skiable terrain.
="s_3FE45715">A weak layer of surface hoar buried down about 100-150 cm (February 12th layer) may be triggered by the new load of storm snow or by avalanches in motion.
="s_3FE45715">A weak layer of buried surface hoar is now down about 100-150 cm and may be triggered by the load from new snow and wind.
="s_3FE45715">A weak layer of buried surface hoar down about 100-150 cm may be triggered by the load of new storm snow and wind.
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. It could be triggered by the forecasted precipitation and warm temperatures.
="s_3FE45715">The 80 cm deep surface hoar/sun crust weak layer could be triggered by the forecasted warm temperatures and precipitation.
Buried slabs (formed in February) are still reactive in isolated areas. Steep lee and cross-loaded features are the primary concern. New loading on Wed and Thurs will increase the possibility of triggering this layer.
="s_3FE45715">A weak layer of buried surface hoar down about 100-150 cm may be triggered by the load of new storm snow and wind.
="s_3FE45715">A weak layer of surface hoar buried down about 100-150 cm (February 12th layer) may be triggered by the new load of storm snow or by avalanches in motion.
="s_3FE45715">A weak layer of buried surface hoar is now down about 100-150 cm and may be triggered by the load from new snow and wind.
A significant load on the surface hoar and a sun crust buried down 60-90 cm could trigger this layer.
="s_3FE45715">A significant load will add on the snowpack possibly triggering the 100 cm deep surface hoar/sun crust weak layer.
="s_3FE45715">A weak layer of buried surface hoar down about 100-150 cm may be triggered by the load of new storm snow and wind.
="s_3FE45715">A weak layer of buried surface hoar is now down about 100-150 cm and may be triggered by the load from new snow and wind.
="s_3FE45715">A weak layer of surface hoar buried down about 100-150 cm (February 12th layer) may be triggered by the new load of storm snow or by avalanches in motion.
="s_3FE45715">A significant load has been added (and more to come) on the snowpack possibly triggering the 100 cm deep surface hoar/sun crust weak layer.
A significant load on the surface hoar and a sun crust buried down 60-90 cm could trigger this layer.
="s_3FE45715">A weak layer of buried surface hoar down about 100-150 cm may be triggered by the load of new storm snow and wind.
A significant load like the forecasted rain/heavy snow or a cornice fall could trigger the surface hoar and a sun crust layer buried down 80-100 cm .
A significant load like the forecasted rain/heavy snow or a cornice fall could trigger the surface hoar and a sun crust layer buried down 80-100 cm .
="s_3FE45715">A weak layer of surface hoar buried down about 100-150 cm (February 12th layer) may be triggered by the new load of storm snow or by avalanches in motion.
="s_3FE45715">A weak layer of buried surface hoar is now down about 100-150 cm and may be triggered by the load from new snow and wind.
="s_3FE45715">A weak interface buried in the upper snowpack could still be triggered with a heavy load, like cornice fall, or from a thin-spot trigger point.
="s_3FE45715">A layer of surface hoar buried on February 12th would now require a large trigger such as a large cornice fall, or an avalanche in motion. Although unlikely, the resulting avalanche would be very large.
="s_3FE45715">A layer of surface hoar buried on February 12th would now require a large trigger such as a large cornice fall, or an avalanche in motion. Although unlikely, the resulting avalanche would be very large.
="s_3FE45715">A weak interface buried over a metre deep could still be triggered with a heavy load, like cornice fall, or from a thin-spot trigger point.
="s_3FE45715">A layer of surface hoar buried on February 12th would now require a large trigger such as a large cornice fall, or an avalanche in motion. Although unlikely, the resulting avalanche would be very large.
Up to 80cm of recent snow is overlying the 0303 temperature crust that is being found on solar aspects well into the alpine.  Field tests are showing the bond of the new snow to this crust as good but warm temperatures may wake up this layer.
A buried rain crust is found on all aspects up to 22-2400m.  The bond with this new snow and the underlying crust is variable.  Be sure to dig down and inspect this layer as you travel.  Convex slopes at treeline and gullies are suspect.
="s_3FE45715"> A weakness buried up to 120 cm deep may still be within the realms of triggering, especially with a very heavy load, from a thin-spot trigger point and/or at high elevations.
About 1m of snow overlies surface hoar or a sun crust buried on March 10th. Although triggering has become less likely, avalanches on this layer could be surprisingly large and destructive. Watch for increased reactivity with forecast sun on Tuesday.
About 1m of snow overlies surface hoar or a sun crust buried on March 10th. Although triggering has become less likely, avalanches on this layer could be surprisingly large and destructive. Watch for increased reactivity with forecast sun on Tuesday.
About 1m of snow overlies surface hoar or a sun crust buried on March 10th. Although triggering has become less likely, avalanches on this layer could be surprisingly large and destructive. Watch for increased reactivity with forecast sun on Tuesday.
A weak layer comprising surface hoar crystals is buried around 50 cm below the surface and is reacting readily to natural and human triggers. This layer appears to have the ability to propagate over large areas of terrain.
Several crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Carefully evaluate the bond at these interfaces and be cautious during times of solar radiation.
="s_3FE45715">A buried crust and/or surface hoar layer may wake up again with loading from new snow and wind on Wednesday. Avalanches stepping down to this layer will be potentially very large and destructive.
A weak layer comprising surface hoar crystals is buried around 50 cm below the surface and is reacting readily to natural and human triggers. This layer appears to have the ability to propagate over large areas of terrain.
="s_3FE45715">Storm snow, wind loading or cornice fall may overload a persistent weakness buried in the upper snowpack. This could lead to surprisingly large avalanches.
Around 1m of snow rests on the March 10 surface hoar/sun crust combo.  This layer may roar back to life Wednesday as storm totals stack up which would result in a surprisingly large and destructive avalanche cycle.
Around 1m of snow rests on the March 10 surface hoar/sun crust combo.  This layer may roar back to life Wednesday as storm totals stack up which would result in a surprisingly large and destructive avalanche cycle.
Around 1m of snow rests on the March 10 surface hoar/sun crust combo. This layer may roar back to life Wednesday as storm totals stack up which would result in a surprisingly large and destructive avalanche cycle.
Several crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Carefully evaluate the bond at these interfaces and be cautious during times of solar radiation.
A weak layer comprising surface hoar crystals is buried around 60 cm below the surface and is reacting readily to natural and human triggers. This layer appears to have the ability to propagate over large areas of terrain.
="s_3FE45715">A buried crust and/or surface hoar layer, now down 60-80 cm, could be triggered in sheltered areas near treeline. Avalanches stepping down to this layer could be very large and destructive.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
The new load of storm snow may trigger the buried weak layer of surface hoar from March 10th that is now down about 100 cms. Large loads like cornice fall are expected to continue to trigger this layer.
="s_3FE45715">Storm snow, wind loading or cornice fall may overload a persistent weakness buried in the upper snowpack. This could lead to surprisingly large avalanches.
Several crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Carefully evaluate the bond at these interfaces and watch for rapid temperature changes.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
="s_3FE45715">Storm snow, wind loading or cornice fall may overload a persistent weakness buried in the upper snowpack. This could lead to surprisingly large avalanches.
The new load of storm snow may trigger the buried weak layer of surface hoar from March 10th that is now down about 100 cms. Large loads like cornice fall are expected to continue to trigger this layer.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
="s_3FE45715">A buried crust and/or surface hoar layer, now down 60-80 cm, could be triggered in sheltered areas near treeline. Avalanches stepping down to this layer could be very large and destructive.
="s_3FE45715">A volatile layer of buried surface hoar around 60 cm below the surface can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
="s_3FE45715">A volatile layer of buried surface hoar around 50 cm below the surface can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load, or from a thin or convex-shaped part of a slope.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
="s_3FE45715">Storm snow, wind loading or cornice fall may overload a persistent weakness buried in the upper snowpack. This could lead to surprisingly large avalanches.
Large loads like cornice fall may trigger the deeply buried March 10th surface hoar layer.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
A 30 - 60cm slab now rests on the March 09 surface hoar/crust combo. This consolidated slab is very touchy and is subject to remote triggering from great distances. A very cautious approach to mountain travel is appropriate at this time.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and 2200m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
="s_3FE45715">A deeply buried weak layer of surface hoar may be triggered by large loads like cornice failures or storm slab avalanches in motion.
Large loads like cornice fall may trigger the deeply buried March 10th surface hoar layer.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
A 30 - 60cm slab now rests on the March 09 surface hoar/crust combo. This consolidated slab is very touchy and is subject to remote triggering from great distances. A very cautious approach to mountain travel is appropriate at this time.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load, or from a thin or convex-shaped part of a slope.
="s_3FE45715">A layer of surface hoar  buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and 2200m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
="s_3FE45715">A layer of surface hoar buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche will occur with consequences. Remote triggering from great distances is possible.
="s_3FE45715">Small solar triggered slides,cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and 2200m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
="s_3FE45715">A layer of surface hoar buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
Large loads like cornice fall may trigger the deeply buried March 10th surface hoar layer.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
="s_3FE45715">Small solar triggered slides,cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche will occur with consequences. Remote triggering from afar is possible.
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the March 15 crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
="s_3FE45715">A layer of surface hoar buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche may occur with consequences. Remote triggering from afar is possible
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
The March 10th weak layer of surface hoar is now buried down more than a metre in most places. Large loads like cornice falls, or lighter loads in thin snowpack areas, may trigger this deeply buried weak layer.
Large loads like cornice falls, or lighter loads in thin snowpack areas, may trigger the deeply buried March 10th surface hoar layer.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Large loads like cornice falls may trigger this deeply buried weak layer.
Buried wind slabs are a concern in steep, convex and unsupported features. These slabs are hidden under previous snowfalls so take time to dig down and evaluate their presence and sensitivity. Recent compression tests show moderate to hard results.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche may occur with consequences. Remote triggering from afar is possible
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. Pockets of wind slab from localized wind, including down-flowing katabatic wind, could be rider triggered.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches. Wind slabs linger on lee slopes and cross-loaded  terrain features.
="s_3FE45715">While the likelihood of triggering is slowly dropping, the March 9th layer can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 60 cm are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
Large loads like cornice falls, or lighter loads in thin snowpack areas may trigger the deeply buried March 10th surface hoar layer.
The March 10th weak layer of surface hoar is now buried 100cm in most places. Large loads like cornice falls, or lighter loads in thin snowpack areas, may trigger this deeply buried weak layer.
Isolated wind slabs are a concern in steep, convex and unsupported features on northerly aspects. Shallow snowpack areas are possible trigger points.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 60 cm are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
Large loads like cornice falls, or lighter loads in thin snowpack areas may trigger the deeply buried March 10th surface hoar layer.
The March 10th weak layer of surface hoar is now buried 100cm in most places. Large loads like cornice falls, or lighter loads in thin snowpack areas, may trigger this deeply buried weak layer.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches. Wind slabs linger on lee slopes and cross-loaded terrain features.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. It may become more stressed with the weekend warm-up. Pockets of wind slab from localized wind, including down-flowing katabatic wind, may be rider triggered.
="s_3FE45715">In some areas the March 9th layer can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
Spotty surface hoar buried on March 9th may be reactive in some drainages. Dig down and test layers before committing to big lines. 
Isolated wind slabs are a concern in steep, convex and unsupported features on northerly aspects. Shallow snowpack areas are possible trigger points.
="s_3FE45715">In some areas the March 9th layer can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
Spotty surface hoar buried on March 9th may be reactive in some drainages. Dig down and test layers before committing to big lines. Deep weakness that formed early season may also resurface as an issue with forecast warming.
Large loads like cornice falls, or lighter loads in thin snowpack areas may trigger the deeply buried March 10th surface hoar layer.
The March 10th weak layer of surface hoar is now buried 100cm in most places. Large loads like cornice falls, or lighter loads in thin snowpack areas, may trigger this deeply buried weak layer.
The March 10th weak layer of surface hoar is buried down more than a metre in most places. It may become more stressed with the weekend warm-up. Pockets of wind slab from localized wind, including down-flowing katabatic wind, may be rider triggered.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches. Wind slabs linger on lee slopes and cross-loaded terrain features.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 60cm are unlikely, but could be triggered with a heavy load (cornice), from a thin spot or on a convex slope.
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
="s_3FE45715">In some areas the March 9th layer can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
Spotty surface hoar buried on March 9th may be reactive in some drainages. Dig down and test layers before committing to big lines. Deep weakness that formed early season may also resurface as an issue with forecast warming.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried near 100 cm deep. This could lead to surprisingly large avalanches. Wind slabs linger on lee slopes and cross-loaded terrain features.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried 100 cm deep. This could lead to surprisingly large avalanches.
="s_3FE45715">In some areas the March 9th layer can still be triggered and propagate across large distances creating surprisingly large avalanches.
="s_3FE45715">Reports of remote triggering suggest the March 9th surface hoar layer is still touchy in some areas. Where it is still reactive, avalanches can be large and potentially destructive.
="s_3FE45715">Reports of remote triggering suggest the March 9th surface hoar layer is still touchy in some areas. Where it is still reactive, avalanches can be large and potentially destructive.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried 100 cm deep. This could lead to surprisingly large avalanches.
="s_3FE45715">Recent reports of remote triggering suggest the March 9th surface hoar layer is still touchy in some areas. Where it is still reactive, avalanches can be large and potentially destructive. Also, give gaping glide cracks a wide berth.
="s_3FE45715">Small solar triggered slides, cornice fall, or thin-spot triggering may overload a persistent weakness buried 100 cm deep. This could lead to surprisingly large avalanches.
Gaping cracks in the snowpack called &quot;Glide Cracks&quot;, may release to ground with warm temperatures and rain.
="s_3FE45715">Recent reports of remote triggering suggest the March 9th surface hoar layer is still touchy in some areas. Where it is still reactive, avalanches can be large and potentially destructive.
="s_3FE45715">Recent reports of remote triggering suggest the March 9th surface hoar layer is still touchy in some areas. Where it is still reactive, avalanches can be large and potentially destructive.
="s_3FE45715">Recent reports of remote triggering suggest the March 9th surface hoar layer is still touchy in some areas. Where it is still reactive, avalanches can be large and potentially destructive.
Surface hoar buried March 9 has been responsible for several recent, large avalanches.
Weaknesses formed during the sunny weather at the beginning of April are now buried up to 90cm below the surface. Although these crystals may be gaining strength, avalanches at this interface may be large and potentially destructive.
Surface hoar buried March 9 has been responsible for several recent, large avalanches.
Weaknesses formed during the sunny weather at the beginning of April are now buried up to 100cm below the surface. Although these crystal are gaining some strength, avalanches at this interface may be large and destructive.
Surface hoar buried March 9 has been responsible for several recent, large avalanches.
Surface hoar buried March 9 has been responsible for several recent, large avalanches.
Stiff windslabs can be found along ridgelines and in gullied terrain. The entire snowpack is likely to be involved in any avalanche that occurs on this layer.
The added load from the new snow may overload the deeply buried weak layer of early season crust. Northerly aspects in the alpine are the most suspect areas for this crust to become reactive.
I have this problem on all aspects, because we do not have many reports from this region. Dig down and find out if this deeply buried weak layer is in your area. Let us know what you find.
The October rain crust and the early November surface hoar have been dormant for several days but have the potential to reactivate with the weight of the new snow. Smaller storm avalanches may have the potential to step down to one of these layers.
="s_3FE45715">The October rain crust and the early November surface hoar have been dormant for several days but have the potential to reactivate with the weight of the new snow. Smaller storm avalanches may have the potential to step down to one of these layers.
Loading from the recent storm may reactivate persistent weaknesses buried in the mid and lower snowpack. If triggered, avalanches on these layers would be large and destructive.
Avalanches initiated in the upper snowpack are likely to step down to the basal October crust and involve the entire winters snowpack.
The October rain crust and the early November surface hoar are lurking deeper in the snowpack. Smaller storm avalanches could step down to one of these layers creating a large full-depth avalanche.
If deeply buried weak layers are triggered, expect very large destructive avalanches.
Loading from the recent storm may reactivate persistent weaknesses buried in the mid and lower snowpack. If triggered, avalanches on these layers would be large and destructive.
The October rain crust and the early November surface hoar are lurking deeper in the snowpack. Smaller storm avalanches could step down to one of these layers creating a large full-depth avalanche.
Avalanches initiated in the upper snowpack are likely to step down to the basal October crust and involve the entire winters snowpack.
The deeply buried early season crust may be reactive to the added load of storm snow, the weight of large triggers like snowmobiles or a group of skiers, or from storm snow avalanches in motion.
Loading from the recent storm may reactivate persistent weaknesses buried in the mid and lower snowpack. If triggered, avalanches on these layers would be large and destructive
Avalanches initiated in the upper snowpack are likely to step down to the basal October crust and involve the entire winters snowpack.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.</span><span class="s_AA239
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Primarily a concern in the southern part of the regio</span><span class="s_3FE45715">n. This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.</span><span class="s_AA239
This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.
We expect the recent storm snow to continue to be reactive where it is sitting above surface hoar and crusts that were buried at the end of November.
We expect the recent storm snow to continue to be reactive above the surface hoar and crusts that were buried at the end of November.
Light loads such as skiers or sledders could trigger large avalanches associated with persistent weaknesses on sheltered slopes.
We expect the recent storm snow to continue to be reactive where it sits above surface hoar and crusts that were buried at the end of November.
In shallower areas the cold will continue to break down the crust and facet the snowpack in general. Thin spots are still the main areas where a skier might initiate an avalanche on the crust.
Recent storm snow overlies a variety of persistent weaknesses including surface hoar and/or a sun crust. It seems to be more of a concern in the southern part of the region where it is up to 70 cm deep.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
The recent storm snow may continue to be reactive where it sits above surface hoar and/or crusts that were buried at the end of November.
This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.
This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.
Sugary facets at or near the base of the snowpack likely represent the most worrisome persistent layer. The most likely place to trigger them is on steep, convex slopes with a thin snowpack.
Because of the variable coverage, this problem is still first on our list. Steep, shallow terrain could easily start a full depth avalanche. Recognizing where the combination of slope angle and snow depth meet will be critical in avoiding avalanches.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Surface hoar from the end of Nov. is now buried by the recent wind slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
In deeper snow areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a sugary facet layer near the base of the snowpack.
Sugary facets at or near the base of the snowpack likely represent the most worrisome persistent layer at this time. The most likely place to trigger them is on steep, convex slopes with a thin snowpack.
This crust layer is still with us and its location is becoming even more variable as time goes on. Keeping an eye on thin, and/or steep areas will be important. It still has the potential for big avalanches.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.</span><span class="s_AA239
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Sugary facets at or near the base of the snowpack likely represent the most worrisome persistent layer at this time. The most likely place to trigger them is on steep, convex slopes with a thin snowpack.
In deeper snow areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base of the snowpack.
A weak interface consisting of surface hoar crystals is buried down around 50 cm. Elevations around 1500 m and below are most suspect, and may be rider triggered.
Avalanches initiated in the upper snowpack are likely to step down to the basal October crust and involve the entire winters snowpack.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
In deeper snow areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base of the snowpack.
A weak interface consisting of surface hoar crystals is buried down around 50 cm. Elevations around 1500 m and below are most suspect, and may be rider triggered.
Sugary facets at or near the base of the snowpack likely represent the most worrisome persistent layer at this time. The most likely place to trigger them is on steep, convex slopes with a thin snowpack.
Snowpack continues to weaken under the influence of a strong temperature gradient within a generally shallow layering.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
The recent cold temperatures have hindered the settlement of the upper snowpack into a cohesive slabs in most places. However, it would be wise to treat large open slopes with suspicion
In deeper snow areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base of the snowpack.
A weak interface consisting of surface hoar crystals is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
Sugary facets at or near the base of the snowpack likely represent the most worrisome persistent layer at this time. The most likely place to trigger them is on steep, convex slopes with a thin snowpack.
Pockets of wind slabs can still be found in the Alpine and selected areas at Treeline. Any avalanche that is triggered will likely fail on the basal October crust (or the ground) and involve the entire winters snowpack.
A weak interface consisting of surface hoar crystals on a crust is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
Sugary facets at or near the base of the snowpack likely represent the most worrisome persistent layer at this time. The most likely place to trigger them is on steep, convex slopes with a thin snowpack.
In deeper snow areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base of the snowpack.
The added load of new storm snow may allow for easy triggering of buried surface hoar where the snow above has settled into a cohesive slab.
Pockets of wind slabs can still be found in the Alpine and selected areas at Treeline. Any avalanche that is triggered will likely fail on the basal October crust (or the ground) and involve the entire winters snowpack.
The dry cold new snow is slowly adding to the load above this buried weak layer. This layer may become reactive when temperatures and freezing levels rise.
A weak interface consisting of surface hoar crystals on a crust is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
="s_3FE45715">Sugary facets near the base of the snowpack represent the most worrisome layer at this time. A surface hoar layer 30-40 cm down may be easily rider triggered with forecast new snow and warmer temperatures.
In deeper snowpack areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base. The most likely place to trigger them is on steep, convex slopes.
A weak interface buried at the end of November is now buried by up to 70cm of snow. Triggering this layer may be more likely in steep, unsupported terrain, and in areas where the overlying snow has settled into a cohesive slab
A variety of weak layers buried in November have become less reactive, although avalanches at these interfaces would be large and destructive.
A variety of weak layers buried in November have become less reactive, although avalanches at these interfaces would be large and destructive.
Its a bit like Groundhog day out there right now. This layer is still a concern in the right area and deserves some thought and attention. Steep, thin coverage, alpine areas are the places of most concern.
A weak interface consisting of surface hoar crystals on a crust is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
A variety of persistent weaknesses exist in the mid and upper snowpack. Watch for increased reactivity with the developing snowload and forecast warming.
A variety of persistent weaknesses exist in the mid and upper snowpack. Watch for increased reactivity with the developing snowload and forecast warming.
="s_3FE45715">In deeper snowpack areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base. The most likely place to trigger them is on steep, convex slopes.
Sugary facets near the base of the snowpack represent the most worrisome layer at this time. A surface hoar layer 30-40 cm down may be easily rider triggered with forecast new snow and warmer temperatures.
A weak interface buried at the end of November is now buried by up to 60cm of snow. Triggering this layer may be more likely in steep, unsupported terrain, and in areas where the overlying snow has settled into a cohesive slab
The dry cold new snow is slowly adding to the load above this buried weak layer. This layer may become reactive when temperatures and freezing levels rise.
Pockets of wind slabs can still be found in the Alpine and selected areas at Treeline. Any avalanche that is triggered will likely fail on the basal October crust (or the ground) and involve the entire winters snowpack.
Persistent weakness may become more touchy with forecast warming and additional load from new snow and wind. This includes mid-pack surface hoar (more of a concern in deeper snowpack areas), and basal facets (more of a concern in shallow areas).
A weak interface buried at the end of November is now buried by up to 60cm of snow. Triggering this layer may be more likely in areas where the overlying snow has settled into a cohesive slab.
Forecast warming may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Sugary facets at or near the base of the snowpack are most likely triggered on steep, convex slopes with a thin snowpack. In deeper snowpack areas you may find a stubborn buried surface hoar layer.
Forecast warming may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer weather over the weekend could make persistent slabs more touchy.
This layer is covered by the old slab that survived the cold snap and potentially small, isolated slabs from the recent winds. The predicted trouble spots are thin, steep, leeward slopes at TL and ALP.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer temperatures could make persistent slabs more touchy.
Sugary facets at or near the base of the snowpack are most likely triggered on steep, convex slopes with a thin snowpack. In deeper snowpack areas you may find a stubborn buried surface hoar layer.
A weak interface buried at the end of November is now buried by up to 50cm of snow. This layer may see increased reactivity with forecast snowfall.
Moderate temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Continued loading and warmer temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Pockets of wind slabs can still be found in the Alpine and selected areas at Treeline. Any avalanche that is triggered will likely fail on the basal October crust (or the ground) and involve the entire winters snowpack.
A weak interface buried at the end of November is now buried by up to 50cm of snow. This layer may see increased reactivity with more snowfall.
Moderate temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer temperatures could make persistent slabs more touchy.
Sugary facets at or near the base of the snowpack are most likely triggered on steep, convex slopes with a thin snowpack. In deeper snowpack areas you may find a stubborn buried surface hoar layer.
Continued loading and warmer temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
This layer should be gaining strength.
Avalanches could step down to the October crust (or the ground) and involve the entire winters snowpack, especially in shallow snowpack areas.
The late November surface hoar layer, now down 40-50 cm, may become more reactive with mild temperatures and continued loading.
Continued loading and mild temperatures could make buried persistent weaknesses in the upper and mid snowpack much more reactive. Make conservative terrain choices over the next couple days.
Continued loading and mild temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer temperatures could make persistent slabs more touchy.
Sugary facets at or near the base of the snowpack are most likely triggered on steep, convex slopes with a thin snowpack. In deeper snowpack areas you may find a stubborn buried surface hoar layer.
The likelihood of even a small avalanche stepping down into the deeper weak base is something for all to keep in mind.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weak layer or facets, surface hoar, and/or a crust are buried by 30-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.</span><span class="s_AA239
A buried persistent weak layer or facets, surface hoar, and/or a crust are buried by 40-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation.
Sugary facets at or near the base of the snowpack are most likely triggered on steep, convex slopes with a thin snowpack. In deeper snowpack areas you may find a stubborn buried surface hoar layer.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weak layer of facets, surface hoar, and/or a crust are buried by 40-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weak layer of facets, surface hoar, and/or a crust are buried by 40-70 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.</span><span class="s_AA239A9B">
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A variety of </span><a id='GoToAdded' href="http://www.fsavalanche.org/Encyclopedia/persistent_weak_layers.htm" target="_blank"><span class="s_9255B882">PWLs</span></a><span class="s_AA239A9B"> are still being discussed across the region including the Oct crust, the mid-Nov crust, and the early-Dec surface hoar. These layers are generally inactive or stubborn to trigger but may still pose a problem in isolated areas.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weak layers that were created and buried in October &amp; November may be sensitive to human triggering.  Be especially cautious near rock outcroppings, on steep convexities and anywhere the snowpack feels thinner than average.</span><span class="s_AA239
With the new load this layer may decide to wake up and become a problem. Be aware of the possibility of smaller avalanches stepping down to this layer.
This layer isn't done yet. Two concerns here: 1)the crust is an excellent sliding surface for storm slabs, and 2)the crust will be rotten at lower elevations, making deep avalanches a possibility. Assess slopes with these two things in mind.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-70 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
A variety of PWLs are still being discussed across the region including the Oct crust, the mid-Nov crust, and the early-Dec surface hoar. These layers are generally inactive or stubborn to trigger but may still pose a problem in isolated areas.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-70 cm of storm snow and may be susceptible to human triggering. Wind slab avalanches may step down and trigger larger persistent slab avalanches.
This layer is still causing concern for a number of reasons. Assess ski or climbing lines by digging in safe, representative areas and see how it is behaving before committing. We have found huge spatial variability with this layer.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-70 cm of storm snow and may be susceptible to human triggering. Wind slab avalanches may step down and trigger larger persistent slab avalanches.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
The most significant interface is a layer of surface hoar from early December. This is buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
Avalanches could step down to the basal October crust (or the ground) and involve the entire winters snowpack, especially in shallow snowpack areas. Some whumpfing has been experienced in recent days.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
The most significant interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops, especially with forecast snowfall.
A buried persistent weak layer of facets, surface hoar, and/or crust is buried by 40-70 cm of storm snow and may be susceptible to human triggering. Wind slab avalanches may step down and trigger larger persistent slab avalanches.
A buried persistent weak layer of facets, surface hoar and/ or a crust may be sensitive to rider triggers. This layer can be found 40-70 cm below the surface and If you trigger this layer, it will result in a large avalanche.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-70 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
This layer is still out there and difficult to find. Within a 20m area field crews today had one pit with the crust, and one pit without. What is much easier to find is the depth hoar associated with the crust. Be diligent in tracking this layer.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
The most significant interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops, especially with forecast snowfall.
A buried persistent weak layer of facets, surface hoar, and/or crust is buried by 40-70 cm of storm snow and may be susceptible to human triggering. Storm slab avalanches may step down and trigger larger persistent slab avalanches.
Avalanches could step down to the basal October crust (or the ground) and involve the entire winters snowpack, especially in shallow snowpack areas. Some whumpfing has been experienced in recent days.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations. With the new snow load comes an increased likelihood of triggering this layer.
The most significant interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
A buried persistent weak layer of facets, surface hoar, and/or crust is buried by 40-70 cm of storm snow and may be susceptible to human triggering. Storm slab avalanches may step down and trigger larger persistent slab avalanches.
Avalanches could step down to the basal October crust (or the ground) and involve the entire winters snowpack, especially in shallow snowpack areas. Some whumpfing has been experienced in recent days.
Weak crystals overlying a crust have been reported from the south of the region. This spotty yet reactive interface is buried up to about 50cm below the surface and may have serious potential to catch riders by surprise.
Weak crystals overlying a crust have been reported from the south of the region. This spotty yet potentially reactive interface is buried up to about 50cm below the surface and may have the potential to catch riders by surprise.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.</span><span class="s_AA239
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations. With the new snow load comes an increased likelihood of triggering this layer.
A layer of surface hoar is lurking in the top meter of the snow pack. Continued settlement of the overlying snow may increase the likelihood of triggering an avalanche on this layer.
="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
The most significant persistent interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
A buried persistent weak layer of facets, surface hoar, and/or crust is buried by 40-70 cm of storm snow and may be susceptible to human triggering. Wind slab avalanches may step down and trigger larger persistent slab avalanches.
Although no recent activity has been reported on persistent layers, snowpack tests show significant weaknesses in some areas up to 90cm below the surface.
A skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
A couple of week layers from earlier in the month are lurking in the top meter of the snow pack. Continued loading and settlement of the overlying snow may increase the likelihood of triggering an avalanche one of these layer.
Persistent weak layers exist in the upper meter of the snowpack. With the additional load of the forecast snow they may be susceptible to triggering, creating large destructive avalanches.
Various  buried weak layers are present in the region, especially in the North. New snow and wind may cause these weak layers to become more sensitive to triggering.
Buried persistent weak layers exist in the upper 90 cm of the snowpack. New snow and wind will increase the load sitting on them making them more susceptible to triggering. Resulting avalanches could be large and destructive.
Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Any avalanche that initiates is likely to involve the entire winters snowpack at this time due to stiff nature of the overlying slab and facetted base.
Primarily a concern in northern sections. A number of buried persistent weaknesses exist in the mid-snowpack and a crust/facet layer lurks near the base of the snowpack. Triggering is possible in shallow snowpack areas.&nbsp;
A couple of weak layers from earlier in the month are lurking in the top meter of the snow pack. Continued loading and settlement of the overlying snow may increase the likelihood of triggering an avalanche one of these layers.
Persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
A skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
Buried persistent weak layers exist in the upper 90 cm of the snowpack. New snow and wind will increase the load sitting on them making them more susceptible to triggering.
Buried persistent weak layers exist in the upper 90 cm of the snowpack.
This layer isn't expected to get any better any time soon. At the risk of sounding like a broken record, this layer needs to be carefully assessed at TL elevations. Make sure the layer is a known factor before committing to a piece of terrain.
Mainly an issue in the northern part of the region where the snowpack is less deep and a weakness of facets and/or a crust is found near the base of the snowpack. 
There is not much news on the buried mid-December rain crust. Watch for clues of instability and be prepared to dig and investigate if you plan on venturing into more committing terrain.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
Buried persistent weak layers exist in the upper 90 cm of the snowpack.
A recent skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops. -
Avalanches could step down to the basal October layers and involve the entire winters snowpack, especially in shallow snowpack areas.  In some areas a dense wind slab overlies this deeply buried weak layer. Large avalanches are possible.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 50-60 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
There is not much news on the buried mid-December rain crust. Watch for clues of instability and be prepared to dig and investigate if you plan on venturing into more committing terrain.
Several persistent weaknesses exist in the mid-snowpack.
Buried persistent weak layers exist in the upper 120 cm of the snowpack.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
A recent skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
The variable snow pack depth and this layer are working together to make terrain choices very difficult. Today's snow study found hard slabs over this layer that made us nervous of wide propagations. Big avalanches are a real concern with this layer.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 60-80 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
Despite the recent snowfall many areas are still below average for snow depths. Deep persistent weaknesses may still exist near the base of the snowpack and could be triggered from thin spots or by continued loading from snow and wind.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
Buried persistent weak layers exist in the upper 110 cm of the snowpack.
Buried persistent weak layers exist in the upper 120 cm of the snowpack.
It's getting a little tricky out there.  Wind slabs avalanches have the potential to step down and trigger an avalanche on the buried surface hoar.  Plan an escape route when sizing up your lines and regroup in safe zones.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
Avalanches could step down to the October layer and involve the entire winters snowpack, especially in shallow snowpack areas. In some areas a dense wind slab overlies this deeply buried weak layer. Large and destructive avalanches are possible.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 60-80 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
Persistent weaknesses may still exist near the base of the snowpack and could be triggered from thin spots or by continued loading from new snow and wind.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
Buried persistent weak layers exist in the upper 120 cm of the snowpack.
This is a complex problem because it's different from one drainage to the next.&nbsp; You need to dig down and figure out if you have a slab on top of the buried surface hoar.&nbsp; If you find a slab in your riding area a conservative approach is appropriate.
Buried persistent weak layers exist in the upper 110 cm of the snowpack.
Reports from the Duffey area indicate a touchy layer of buried surface hoar now sits under about 30cm of snow. This is likely the layer to watch as the overlying slab develops.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to a meter below the surface.
Avalanches could step down to the basal October layers and involve the entire winters snowpack, especially in shallow snowpack areas. In some areas a dense wind slab overlies this weak layer, so large and destructive avalanches are possible.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 60-80 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
A variety of buried surfaces exist and could be triggerable in the upper 120 cm of the snowpack.
Persistent weaknesses may still exist near the base of the snowpack and could be triggered from thin spots or by continued loading from new snow and wind.
A variety of buried surfaces exist and could be triggerable in the upper 100 cm of the snowpack.
A persistent weakness buried early December seems to be most reactive on NW through NE aspects from 1700-2000m. Lower elevation terrain and thin snowpack areas are heavily faceted with a weak base.
This is a complex problem because it's different from one drainage to the next.&nbsp; You need to dig down and figure out if you have a slab on top of the buried surface hoar.&nbsp; If you find a slab in your riding area a conservative approach is appropriate.
Primarily in the northern part of the region. Persistent weaknesses may be particularly touchy where there is an associated crust.
A weak layer buried around 50 cm from mid-December has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
Avalanches could step down to the basal layers and involve the entire winters snowpack, especially in shallow snowpack areas. The approaching storm will add load to this weak layer and could lead to increased avalanche activity.
A persistent weakness buried early December seems to be most reactive on NW through NE aspects from 1700-2000m. Lower elevation terrain and thin snowpack areas are heavily faceted with a weak base.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
A persistent weakness buried late-November is primed for human-triggered avalanches primarily in the Flathead and Elk Valley South areas.
Primarily a concern in Northern sections. A buried surface hoar layer in the middle of the snowpack could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
Primarily in the northern part of the region and shallow snowpack areas. Persistent weaknesses may be particularly touchy where there is an associated crust.
Persistent weaknesses may still exist near the base of the snowpack and could be triggered from thin spots or by continued loading from new snow and wind.
The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
A weak layer buried around 50 cm has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
The new snow may be enough load to cause a widepread natural avalanche cycle with avalanches that involve the entire winters snowpack.  Thin spots and weak trigger points will be tough to locate.
The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715">A weak layer buried around 50 cm has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
Primarily in the northern part of the region and shallow snowpack areas. Persistent weaknesses may be particularly touchy where there is an associated crust.
Primarily a concern in Northern sections. A buried surface hoar layer in the middle of the snowpack could be human-triggered. and a weak facet/crust combo lurks near the ground.
Persistent weaknesses may still exist near the base of the snowpack and , although stubborn, could be triggered from thin spots and propagate into very large avalanches.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time. </span><span class="s_AA239
="s_3FE45715">Storm avalanches could step down to a persistent weakness in the snowpack buried down 100 cm.
Storm avalanches could step down to a persistent weakness buried down 70 cm. This is the case especially in the Flathead and Elk Valley South areas.
Avalanches could step down to the basal October layers and involve the entire winters snowpack, especially in shallow snowpack areas. Whumpfing has been observed in recent days.
There is now close to 50 cm above this weak layer in the Duffey Lake area. Snowpack tests show that this layer may be triggered by light additional loads.
Shallow snowpack areas in the North of the region may continue to have persistent weak layers of surface hoar and/or a facetted crust near the ground.
Persistent weak layers near the base of the snowpack may continue to be triggered by light loads in weak shallow areas. These weak layers may not gain strength until sustained warm temperatures allow for rounding, bonding, and settlement.
An avalanche triggered in the new snow or new windslab could step down to a persistent weakness in the snowpack buried down 100 cm.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
A weak layer buried around 60 cm has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
An avalanche triggered in the new snow or new windslab could step down to a persistent weakness in the snowpack buried down 100 cm.
The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
Triggering of this layer may be from a thin, weak area or from a smaller avalanche over whelming the strength of the midpack and stepping down. Large terrain features remain suspect. Full depth avalanches are still very possible.
Weak layers of buried surface hoar, crusts, and depth hoar may continue to be triggered by light additional loads like skiers and riders. Wind slabs above these weak layers may step down resulting in larger and more dangerous avalanches.
Watch for areas with a shallow weak facetted snowpack below the recent storm snow. Stiff wind slabs may also be sitting above this type of weakness and step-down avalanches may be a concern in isolated areas.
Persistent weak layers of buried crusts and facets may be triggered by human activity or by smaller avalanches in motion. Watch for loose&nbsp; avalanches on steep solar aspects stepping down into shallow weak snowpacks.
Buried surface hoar and deeply buried facets near the ground continue to be a concern in the North of the region where the snowpack is generally shallow and weak.
tyle: Normal;font-weight: normal;font-size: 13.3333333333333px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The presence of </span><a id='GoToAdded' href="http://www.fsavalanche.org/encyclopedia/persistent_weak_layers.htm" target="_blank"><span class="s_B5813F7D">persistent weak layers</span></a><span class="s_3FE45715"> increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">New snow and fresh wind slabs rest on top of two </span><a id='GoToAdded' href="http://www.fsavalanche.org/encyclopedia/persistent_weak_layers.htm" target="_blank"><span class="s_9255B882">persistent weak layers</span></a><span class="s_AA239A9B"> in the upper meter of the snowpack. Many slopes are teetering on the edge of failure waiting for a human trigger, particularly exposed lee slopes at and above treeline.
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715"> Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or a sled airing onto a slope.
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche.
Not much recent activity on this layer but dont let it slip from your mind.&nbsp; This is the low probability high consequence avalanche that may occur.&nbsp; Always be thinking consequence.
New snow and fresh wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Many slopes are teetering on the edge of failure waiting for a human trigger, particularly exposed lee slopes at and above treeline.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or a sled airing onto a slope.
Weak layers of buried surface hoar, crusts, and depth hoar may continue to be triggered by light additional loads like skiers and riders. Moist loose snow falling from steep solar aspects may trigger buried weak layers.
="s_3FE45715"> Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or cornice fall.
Watch for areas with a shallow weak facetted snowpack below the recent storm snow. Stiff wind slabs may also be sitting above this type of weakness and step-down avalanches may be a concern in isolated areas.
A weak layer of buried facets near the ground continues to be a concern in the North of the region. The snowpack is quite variable across the region, try to get local knowledge if you are travelling to new areas.
A weak layer of facetted snow near the ground continues to be a concern in shallow snowpack areas.
Be aware of the potential for loose or slab avalanche activity  to step down into deeper weak layers and involve the entire winter snowpack.
New snow and fresh wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Many slopes are teetering on the edge of failure waiting for a human trigger, particularly exposed lee slopes at and above treeline.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
Weak layers of buried surface hoar, crusts, and depth hoar may continue to be triggered by light additional loads like skiers and riders.
Watch for areas with a shallow weak facetted snowpack below the recent storm snow. Stiff wind slabs may also be sitting above this type of weakness and step-down avalanches may be a concern in isolated areas.
A weak layer of buried facets near the ground continues to be a concern in the North of the region. The snowpack is quite variable across the region. Try to get local knowledge if you are traveling to new areas.
A weak layer of facetted snow near the ground continues to be a concern in shallow snowpack areas.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or cornice fall.
="s_3FE45715"> Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or cornice fall. These layers seem more sensitive on E facing slopes.
A concern in all elevation zones on all aspects - any avalanche has the potential to step down into the deeper weakness and involve the entire winters snowpack.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Fresh wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. </span><span class="s_3FE45715">Triggering a windslab could add a significant load to the snowpack and possibly step down to a deeper buried persistent weak layer.</span><span class="s_AA239
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or cornice fall.
Depth hoar at base of snowpack and/or crust/facets combo layers down 100 cm could still be triggered by skiers and sledders. These layers seem more reactive on E facing slopes.
Snow forecast for the week will create a steadily increasing load to buried persistent weakness which seem most prevalent in the north of the region. Triggering these weaknesses may have nasty consequences.
Snow forecast for the week will create a steadily increasing load to buried facets formed during December's cold snap. Triggering this weakness may have nasty consequences.
A weak layer of buried facets near the ground continues to be a concern in the North of the region. Try to get local knowledge if you are traveling to new areas.
Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
Thin areas near the transition to deeper snow pockets or hidden shallow areas are the trouble spots for this layer. Assess this layer carefully and look at the size of the terrain you are close to. Full depth avalanches are a possibility.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
Wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Triggering a wind slab could add a significant load to the snowpack and possibly step down to a deeper buried persistent weak layer.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Try to get local knowledge if you are traveling to new areas.
Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
The distribution and reactivity of persistent weak layers is highly complex at this time.
The distribution and reactivity of persistent weak layers is complex.
Snow forecast for the week will create a steadily increasing load to buried facets formed during December's cold snap. Triggering this weakness may have nasty consequences.
Snow forecast for the week will create a steadily increasing load to buried persistent weakness which seem most prevalent in the north of the region. Triggering these weaknesses may have nasty consequences.
Depth hoar at base of snowpack and/or crust/facets combo layers down 100 cm could still be triggered by skiers and sledders. These layers seem more reactive on E facing slopes.
Loading in the coming days could awaken the persistent weak layers that have been unreactive lately. If they reach their tipping point, large avalanches could occur.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or cornice fall.
Whumphing at tree line areas has been a common occurrence lately. This is a reminder that this weak layer is still with us. Yet another reminder is the recent, large natural activity. See avalanche observations for more details.
The likelihood of triggering persistent weaknesses in the mid-pack and near the ground is increasing. It's likely we will see a number of very large, full-depth avalanches by Saturday.
Snow forecast for the week will create add a significant load to deeply buried weaknesses in the mid and lower snowpack. The likelihood of triggering a deep and very large avalanche is on the rise.&nbsp;
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
The distribution and reactivity of persistent weak layers is complex.
Wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Triggering a wind slab could add a significant load to the snowpack and possibly step down to a deeper buried persistent weak layer.
The distribution and reactivity of persistent weak layers is highly complex at this time.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Try to get local knowledge if you are traveling to new areas.
Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
The new load will stress this layer. There is a good chance it will not be able to support the load. Given how stiff the upper layers are wide propagations are likely. Especially in areas that have not already avalanched. Avoid large features.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
Two persistent weak layers exist in the upper meter of the snowpack. Intense loading from snow and wind could overload these weakness, potentially creating very large avalanches.&nbsp;
A number of buried persistent weak layers in the mid and lower snowpack could become reactive with heavy loading from snow and wind this weekend. There is potential for large, full-depth avalanches. 
Heavy loading from snow and wind could overload a variety of weaknesses in the upper and mid snowpack, potentially creating very large avalanches.&nbsp;
Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
Saturday's storm loading will be the first big &quot;shock&quot; for weak sugar snow which formed during December's cold snap. Where this weakness exists, there is potential for very large and destructive avalanches.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Watch for increased triggering in unsupported terrain with a variable or shallow snowpack.
A cornice fall or avalanches triggered in the storm snow or windlabs could step down to deeper persistent weak layer located in the middle and at the base of the snowpack.
The forecasted load could awaken the deeper instabilities located down a meter and at the bottom of the snowpack.
="s_3FE45715">It is expected that the deeper weaknesses could meet their tipping point during this storm and create large avalanches.
The new snow is adding more load to the basal facets and in some areas overloading them triggerring an avalanche that is involving the entire winters snowpack. Be conscious of large avalanches.
Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Watch for increased triggering in unsupported terrain with a variable or shallow snowpack.
="s_3FE45715"> Deep persistent instabilities could still be lingering in the snowpack and be triggered by a large load such as the windloading that is forecasted.
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> Deep persistent instabilities could still be lingering in the snowpack and be triggered by a large load such as the windloading that is forecasted. </span><span class="s_AA239
Deep persistent instabilities could still be lingering in the snowpack and be triggered by a large load such as the windloading that is forecasted.
There were a few avalanches that failed full depth in the recent storm.&nbsp; Be aware, any avalanche that initiates is likely to involve the entire winters snowpack.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Watch for an increased likelihood of triggering in unsupported terrain with a variable or shallow snowpack.
Weak layers still exist in places near the bottom of the snow pack.  Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">&nbsp; Recent avalanches stepped down to the deeper persistent layers showing that they are still active and proving that they could still be triggered by a sledder or rider.</span><span class="s_AA239
Deep persistent instabilities could be triggered by a large load such as a cornice fall.
There is a wide spatial variability through the region concerning the persistent weak layers which is creating a complex situation.
This is a longstanding problem - be aware that any avalanche may step down into the deeper basal weaknesses and involve the entire winters snowpack as has already occurred in some areas.
Resist venturing out into complex terrain, even if you observe no obvious signs of unstable snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Choose well supported terrain without convexities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be aware of thin areas that may propagate to deeper instabilities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The forecast snows will be a good test for weak layers near the bottom of the snow pack. Triggering a persistent weakness could have nasty consequences. Avoid thin spots, cross-loaded slopes or unsupported terrain.
Heavy loading from snow and wind could overload a variety of weaknesses in the upper and mid snowpack, potentially creating very large avalanches.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more.
Deeply buried weak layers continue to be a concern on slopes that were exposed to earlier periods of Arctic air. Heavy additional loads like wind slab avalanches in motion or cornice falls may step down to near the ground.
A number of buried persistent weak layers in the mid and lower snowpack could become reactive with heavy loading from snow and wind this weekend. There is potential for large, full-depth avalanches.&nbsp;
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
The forecast storm will be the first real test of a weak layer of buried facets near the ground that continues to be a concern in the north of the region.
Weak layers continue to linger deep in the snowpack. There is a lot of variability in this region. Areas that were shallow during the early season cold arctic air are very suspect now that a new load has been added.
A long term concern this winter - weak base exists in man areas up to 2400 meters in elevation or at the upper limit of treeline so carefully consider the presence of this problem!.
Resist venturing out into complex terrain, even if you observe no obvious signs of unstable snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Choose well supported terrain without convexities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be aware of thin areas that may propagate to deeper instabilities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Avoid exposure to overhead avalanche terrain, large avalanches may reach the end of run out zones.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be aware of the potential for full depth avalanches due to deeply buried weak layers.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
A number of buried persistent weak layers in the mid and lower snowpack could become reactive with heavy loading from snow and wind this week. There is potential for large, full-depth avalanches.
Heavy loading from snow and wind could overload a variety of weaknesses in the upper and mid snowpack, potentially creating very large avalanches.
Avoid thin spots, cross-loaded slopes or unsupported terrain.
Only for the N sections where it is suspected to be rounding and gaining strength. Probably will get flushed out down south with this storm.
Many large natural avalanches have been observed over the past few days.&nbsp; These slides have involved the entire winters snowpack and ran full path to valley bottoms.&nbsp; Heads up.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
A number of persistent weakness exist in the snowpack, the most notable being weak, sugary facet crystals at ground level. Forecast warming may promote ongoing avalanche activity at this interface with the potential for large, destructive avalanches.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggering a persistent slab avalanches would have nasty consequences.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Persistent slab avalanches would likely be destructive in nature.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggering a persistent slab avalanche would have nasty consequences.
Facet/crust combo down 100 cm is still a concern mostly at treeline.
The facet/crust or surface hoar down 100 cm and the basal facets layers are gaining strength but could still be triggered by a heavier load such as a cornice fall or a windslab avalanche stepping down.
Avalanche control work and natural avalanche activity observations highlight the deep weakness - natural avalanche observations and avalanche control work&nbsp; consistently saw failures occurring at the base of the snowpack&nbsp; producing large avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggers include cornice fall or a surface avalanche in motion. Any persistent slab avalanche would be highly destructive.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses in the snowpack. Possible triggers include cornice fall. A persistent slab avalanche would be highly destructive in nature.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggers include cornice fall or a surface avalanche in motion. Any persistent slab avalanche would have nasty consequences.
This layer came to life during the recent avalanche cycle and many large events were observed on this layer.&nbsp; Any avalanche in the upper snowpack may step down to the basal facets so be thinking about large avalanches as you travel.
Forecast warm temperatures are expected to result in cornices becoming weak and falling naturally. Cornice falls may trigger buried weak layers on slopes below resulting in very large avalanches.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering..
Avalanches are often stepping down to the basal October layers and involving the entire winters snowpack. In some areas a dense wind slab overlies this deeply buried weak layer, so the possibility for large and destructive avalanches exists.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering.
Forecast warm temperatures are expected to result in cornices becoming weak and falling naturally. Cornice falls may trigger buried weak layers on slopes below resulting in very large avalanches
Many large avalanches were observed over the past week failing on the October crust and ground.&nbsp; Although no skier triggered events occurred on this later, it should still be in your head when thinking consequence.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences could be very large destructive avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering.
Dense storm slabs above this SH layer will likely now be hard to trigger, but if triggered may produced large destructive avalanches.
Large whumpfs&nbsp; with associated cracking through the snowpack continue to be observed in areas at and below treeline.
Dense storm slabs above this SH layer will likely now be hard to trigger, but if triggered may produced large destructive avalanches.
Storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences could be very large destructive avalanches.
Storm snow may not bond to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering of these slabs
Still the main concern out there right now. The surface windslabs are still prone to human triggering in the right piece of terrain. The potential for large avalanches is still out there on this layer.
Storm snow may not have bond well to the surface hoar and melt-freeze crusts that developed before the storm.  Forecast warm temperatures may result in easier triggering of these slabs
Dense storm slabs above this SH layer will likely now be hard to trigger, but if triggered may produced large destructive avalanches.
Storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences could be very large destructive avalanches.
Any avalanche initiating in the upper snowpack is likely to step down and involve the entire winters snowpack.&nbsp; Be thinking about consequence as you travel.
The basal problem of facets and depth hoar will likely persist all winter.&nbsp; This layer is getting harder to trigger, but will result in a large destructive avalanche if it initiates.
Avalanches could step down to the basal October layers and involve the entire winters snowpack. Wide propagations are possible. Shallow snowpack areas are a potential trigger point.
Avalanches could step down to the basal October layers and involve the entire winters snowpack. Wide propagations are possible. Shallow snowpack areas are a potential trigger point.
Avalanches could step down to the basal October layers and involve the entire winters snowpack. Wide propagations are possible. Shallow snowpack areas are a potential trigger point.
Avalanches could step down to the basal October layers and involve the entire winters snowpack. Wide propagations are possible. Shallow snowpack areas are a potential trigger point.
Avalanches could step down to the basal October layers and involve the entire winters snowpack. Wide propagations are possible. Shallow snowpack areas are a potential trigger point.
Tests today confirmed that the basal weakness is still a real concern. The faceted nature of the lower snowpack is undermining the overall strength of the entire snowpack. This is a widespread problem at treeline and alpine elevations.
Testing&nbsp; today near treeline again showed a sudden collapse in the basal weakness. Steep variable terrain with no previous activity is a likely spot to trigger a wide propagation.
Depth hoar and facets still linger at the bottom of the snowpack. Caution in steep, thin areas. Especially if the area has not previously avalanched.
The mid pack had gained considerable strength in the last while. It is doing a good job of bridging the basal weak layer.&nbsp; Thin areas are the likely trigger point for this layer.&nbsp; Assess bigger terrain carefully.
There are several buried crusts and or surface hoar layers that developed in the end of January and during the cold weather earlier this month. Avalanches releasing on these layers may be large with serious consequences.
I am splitting this PWL out of the storm slab problem because most of the activity is releasing in the storm snow layers. Avalanches that release on this PWL are expected to be less frequent but higher consequence.
There are several buried crusts and or surface hoar layers that developed in the end of January and during the cold weather earlier this month. Avalanches releasing on these layers may be large with serious consequences.
The crust and facet layer that developed during the cold weather at the beginning of the month is now down about 90 cm. Avalanches that release on this PWL are expected to be less frequent but higher consequence.
The early February crust /facet layer is now down over a metre and continues to be reactive. Storm snow avalanches in motion may step down to this widespread weak layer. Expect long fracture propagations across terrain boundaries.
Forecast new storm snow may over load the persistent weak layer resulting in very large avalanches. Storm snow avalanches in motion may step down to the buried weak layer.
The windslabs from last week have been downgraded to persistent slabs. The reason for this is the slow bond and the general nature of the Feb 11th layer. This avalanche problem will be on the radar for some time.
The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, storm slab avalanches or cornice falls in motion, and triggering from adjacent terrain are all concerns.
Expect the deeply buried weak layer to continue to produce very large and destructive avalanches. Each load of new snow adds to the storm slab above the weak layer.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
The snow is settling overtop of the Feb 11th interface but we are still getting lots of settlements and shooting cracks as we travel.&nbsp; As the snow settles, larger propagations will become likely.&nbsp; Continue to use conservative terrain.
The early February weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a concern.
Expect the deeply buried weak layer to continue to produce very large and destructive avalanches. Each load of new snow adds to the storm slab above the weak layer.
The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, storm slab avalanches or cornice falls in motion, and triggering from adjacent terrain are all concerns.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
The layers above the Feb 11th layer are gaining strength which has a negative impact on avalanche conditions. Propagations will get larger as the slab density increases. Whumphing and cracking continue at all elevations.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
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.s_6A269DDD { font-family: 'Arial';font-style: Normal;font-weight: bold;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect the deeply buried weak layer to continue to produce very large and destructive avalanches. </span><span class="s_3FE45715">Slopes are</span><span class="s_6A269DDD"> primed</span><span class="s_3FE45715"> for remote triggering and remains a concern on all aspects and elevations.</span><span class="s_AA239
The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, storm slab avalanches or cornice falls in motion, and triggering from adjacent terrain are all concerns.
The early February weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a concern. If triggered large to very large avalanches are expected.
A weak facet/crust combo, with surface hoar in some areas, is now down 80-150 cm and is primed for human triggering. This weakness shows potential for wide propagation and very large avalanches.
A persistent weakness, now down 60-80 cm in the northern part of the region and 100-150 cm in the south, is primed for rider triggering. This tricky problem has the potential for wide propagation and very large avalanches.
Blue skies and fresh snow will make it very tempting to push out into more committing terrain. Don't get lured in! The current conditions are very tricky and require patience and conservative decision making.
Solar radiation and/or additional wind loading could be enough to tip the scales and greatly increase the potential for triggering this problem. Pay close attention to local conditions.
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering.  In wind-loaded areas the slab is up to 2m thick.
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering. In wind-loaded areas the slab is up to 2m thick.
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering. In wind-loaded areas the slab is up to 2m thick.
="s_3FE45715">The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, surface slab avalanches, cornice falls in motion, and triggering from adjacent terrain are all concerns.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern. All elevations are suspect and have been reactive.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect the deeply buried weak layers to continue to produce very large and destructive avalanches. Slopes are </span><span class="s_2823317B">primed </span><span class="s_AA239A9B">for human triggering and it remains a concern on all aspects and elevations.
This is still the major concern for us right now. Conservative terrain choices are critical. Give big slopes a wide berth, particularly if they haven't avalanched. Whumphing and cracking have been the tell tale indicator of this weakness.
Our comfort level with this layer is still not good. The cycles that have been ongoing suggest we are at the &quot;human trigger&quot; phase of the cycle. Avoid large slopes, overhead slopes, convex slopes and any area that has not avalanched. 
A weak facet/crust combo, with surface hoar in some areas, is now down 80-150 cm and remains a concern for human triggering. This weakness shows potential for wide propagation and very large avalanches.
A persistent weakness, now down 60-80 cm in the northern part of the region and 100-150 cm in the south, remains a concern for rider triggering. This tricky problem has the potential for wide propagation and very large avalanches.
Blue skies and fresh snow will make it very tempting to push out into more committing terrain. Don't get lured in! The current conditions are very tricky and require patience and conservative decision making.
Solar radiation and/or additional wind loading could be enough to tip the scales and greatly increase the potential for triggering this problem. Pay close attention to local conditions.
="s_3FE45715">Over a metre deep and continues to be touchy to any additional load. Continued wind loading, surface slabs, cornice falls in motion, and human triggering from adjacent terrain are all concerns.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.</span><span class="s_AA239
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.</span><span class="s_AA239
Naturally triggered avalanche activity is declining, but human triggering remains touchy. This persistent weak layer will be a problem for some time and is now buried between 60 and 80cm. Whumpfing and cracking have been observed in recent days.
Warming temperatures and solar radiation will likely increase the probability of triggered the mid February persistent weak layer, that is now down 80-150 cm.
Strong solar radiation and warming temperatures will likely increase the probability of avalanches running on the mid February persistent weak layer, which is now down 80-150 cm.&nbsp;
Rapidly rising temperatures will likely increase the probability of avalanches releasing on the buried mid February persistent weak layer. The resulting slides could be very large and destructive.
The mid February persistent weak layer is down between 35 and 90 cm. Forecast solar radiation and warming temperatures could make this problem more reactive.&nbsp;
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
Over a metre deep and continues to be touchy to any additional load. Continued wind loading, surface slabs, cornice falls in motion, and human triggering from adjacent terrain are all concerns.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
A thick slab from February storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab may be up to 2m thick.
Naturally triggered avalanche activity has subsided, but human triggering remains touchy. The Feb 10 persistent weak layer will be a problem for some time and is buried between 40 and 70cm. Whumpfing and cracking continue to be observed.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
Over a metre deep and continues to be touchy to any additional load. Continued wind loading, surface slabs, cornice falls in motion, and human triggering from adjacent terrain are all concerns
="s_3FE45715"> A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A</span><span class="s_3FE45715"> dense slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
The deeply buried early February weak layer continues to be sensitive to additional loads. Continued warming and settling of the storm snow may result in more activity on this layer.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and wide propagation. In wind-loaded areas the slab may be 2m or more thick.
The deeply buried weak layer continues to be sensitive to additional loads. Cornice falls or loose wet avalanches in motion may trigger the deep weak layer of facets and crusts.
The early February persistent weak layer continues to be sensitive to any additional load. Forecast solar radiation may trigger another round of natural activity on the buried weak layer.
The mid February persistent weak layer is down between 35 and 90 cm. Forecast solar radiation and warming temperatures could make this problem more reactive.&nbsp;
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
Naturally triggered avalanche activity has subsided, but human triggering remains touchy. The Feb 10 persistent weak layer will be a problem for some time and is now buried 35 and 70cm. Whumpfing and cracking have been observed in recent days.
The deeply buried weak layer continues to be sensitive to additional loads. Cornice falls or loose wet avalanches in motion may trigger the deep weak layer of facets and crusts.
The deeply buried weak layer continues to be sensitive to additional loads. Cornice falls or loose wet avalanches in motion may trigger the deep weak layer of facets and crusts.
The early February persistent weak layer continues to be sensitive to any additional load. Forecast solar radiation may trigger another round of natural activity on the buried weak layer.
The early February persistent weak layer of buried facets and crusts continues to be a concern for human triggering. Cold temperatures are not expected to help settle and bond this weak layer.
A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.
="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick. </span><span class="s_AA239
="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
The Feb 10 persistent weak layer is highly variable in nature (a mix of facets, sun crust, wind slab, surface hoar) and is still producing moderate to hard shears down 35 to 70cm in the snowpack. Isolated whumpfing and cracking continues.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.</span><span class="s_AA239
A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 1 1/2 m. thick.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.</span><span class="s_AA239
="s_3FE45715">A dense storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 1.5 metres thick.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further as the old storm snow above the weak layers settles into a cohesive slab.
Human triggering with long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer my be large and destructive.
="s_3FE45715">Expect the deeply buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Expect the deeply buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.</span><span class="s_AA239
Human triggering with the possibility of long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine may be the most suspect slopes.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Touchy slabs are found on this layer. Note that the aspect has grown to include SW. This is due to the N-NE wind pattern expected for the next while. Good terrain choices are critical right now. Avoid steep, convex or unsupported terrain.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
="s_3FE45715">A dense storm slab now lies over a touchy, persistent weak layer. This weak layer can be triggered remotely (from a distance) and propagate over large areas. In wind-loaded areas the slab may be up to 1.5m thick. Use conservative terrain choices.
Human triggering with the possibility of long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine may be the most suspect slopes.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
Human triggering with long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer my be large and destructive.
A dense storm slab from the last series of storms now lies above a tricky persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In some wind-loaded areas the slab may be up to 2m thick.
A dense storm slab now lies over a persistent weak layer. This weak layer can be triggered remotely (from a distance) and propagate over large areas. In wind-loaded areas the slab may be up to 2m thick. Use conservative terrain choices.
="s_3FE45715">A dense storm slab now lies over a touchy, persistent weak layer. This weak layer can be triggered remotely (from a distance) and propagate over large areas. In wind-loaded areas the slab may be up to 2m thick. Use conservative terrain choices.
Expect the deeply buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Natural activity has stopped with the cold temps. The alpine/treeline winds have crossloaded open, east facing terrain which will add some additional load in specific areas. Use terrain to your advantage. Avoid big, unsupported, crossloaded features.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A dense slab overlies a variety of weak layers and may still be touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This problem remains very persistent and still has the potential to produce large, destructive avalanches.&nbsp; Human triggering is becoming more difficult in thicker snowpack areas but can still be easily triggered in thin spots or with heavier triggers&nbsp;
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer my be large and destructive.
Expect the deeply buried weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Human triggering with the possibility of long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine may be the most suspect slopes.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Human triggering with long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Feb 10 persistent weak layer is highly variable in nature (a mix of facets, sun crust, wind slab, surface hoar) and is still producing shears down 30 to 60cm in the snowpack. Isolated whumpfing and cracking continues to occur on this layer.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer my be large and destructive.
Human triggering with long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer may be large and destructive.
A deep and destructive slab overlies a variety of weak layers and rider triggering continues throughout the region. Conservative terrain selection is critical to safe mountain travel.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
A deep and destructive slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard.
This problem remains very persistent and still has the potential to produce large, destructive avalanches.  Human triggering is becoming more difficult in thicker snowpack areas but can still be easily triggered in thin spots or with heavier triggers
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard
The thick persistent slab on the early-Feb weak layer is still reactive to human triggers and has the potential to produce large, destructive avalanches.&nbsp; The new snow may 'wake up' the weak layer and large natural avalanches may occur.
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard.
The Feb 10 persistent weak layer is highly variable in nature (a mix of facets, sun crust, wind slab, surface hoar) and is still producing moderate to hard shears down 40 to 80cm in the snowpack. No cracking or whumpfing was observed today.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer may be large and destructive.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer my be large and destructive.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted by large, unsupported terrain.
This problem remains persistent and still has the potential to produce large, destructive avalanches.&nbsp; Human triggering is becoming more difficult in thicker snowpack areas but can still be easily triggered in thin spots or with heavier triggers.
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted by large, unsupported terrain.
The thick persistent slab on the early-Feb weak layer is still reactive to human triggers and has the potential to produce large, destructive avalanches.&nbsp; The new snow may 'wake up' the weak layer and very large natural avalanches are possible.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into large, unsupported terrain.
Human triggering with long fracture propagation resulting in very large avalanches continues to be a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into big unsupported terrain. 
The Feb 10 persistent weak layer is highly variable in nature (a mix of facets, sun crust, wind slab, surface hoar) and is still producing moderate to hard shears down 40 to 80cm in the snowpack.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
North aspects in the alpine are the most likely slopes for human triggering the February weak layer. Avalanches releasing on this deeply buried persistent weak layer may be large and destructive.
A deep, dense slab overlies a variety of weak layers which are still showing reactivity in snowpack tests. Triggering this weakness would have nasty consequences with the potential for wide propagations
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into big unsupported terrain.
="s_3FE45715">New load from snow, wind and warming could possibly trigger the deeper February layer. Human triggering also remains a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
A deep, dense slab overlies a variety of weak layers which are still showing reactivity in snowpack tests. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into large, unsupported terrain.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted by large, unsupported terrain.
="s_3FE45715">The deeply buried persistent weak layer still has the potential to produce large and destructive avalanches. Isolated slopes are still primed for human triggering and remain a concern on all aspects and elevations.
The deeply buried persistent weak layer still has the potential to produce large and destructive avalanches. Isolated slopes are still primed for human triggering and remain a concern on all aspects and elevations.
="s_3FE45715">New load from snow, wind and warming could possibly trigger the deeper February layer. Human triggering also remains a concern. North aspects in the alpine are the most likely slopes to have a well preserved weak layer with a cohesive slab above.
The thick persistent slab on the early-Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches.  The new snow may 'wake up' the weak layer and very large natural avalanches are possible.
Heavy loading and rising temperatures could be enough to trigger the mid-February facet/crust combo, particularly on northerly aspects.&nbsp;
This is probably more of a concern in northern sections where the mid February persistent weakness is buried less than a metre deep. Loading from new snow and wind could be enough to trigger this deeper problem.&nbsp;
Triggering the mid February persistent weakness is unlikely until the weather changes (Friday!). Caution is still recommended on higher north aspects.&nbsp;
Cold temperatures have likely helped to preserve the mid February persistent weak layer, down 30-80 cm. This layer could become active on Friday with new loading from snow and wind, and rapidly rising temperatures.&nbsp;
Unsupported terrain is the most likely place to trigger this layer. So far, this layer seems to be handling the new load reasonably well, however expect that to change at a moment's notice. Avoid big terrain while it adjusts.
A buried persistent weak layer still has the potential to produce large and destructive avalanches especially in areas with a shallower snowpack where this layer can be found buried in the upper one meter.
Ongoing persistent avalanche activity proves layers formed about a month ago deserve respect and should still be in the front of your mind. See the Avalanche Summary in the Forecast Details section for more info on recent activity at this interface.
A buried persistent weak layer has the potential to produce large and destructive avalanches. Unsupported slopes or areas with a thinner snowpack may still be primed for human triggering.
A deep, dense slab overlies a variety of weak layers which are still producing surprise avalanches with the potential for wide propagations. The likelihood of triggering this weakness may increase with the load of the new snow.
A deep, dense slab overlies a variety of weak layers which are still producing surprise avalanches with the potential for wide propagations. The likelihood of triggering this weakness may increase with the load of the new snow.
The mid-Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches. The increasing load of the new snow may 'wake up' this weak layer and very large natural avalanches are possible
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted into large, unsupported terrain.
This problem is a greater concern in northern sections where it is buried around 100 cm deep. New loading from snow and wind, or a smaller avalanche could be enough to wake this layer up and produce a very large avalanche.
Still the main concern for our area. The best word to describe this layer is variable. Some places it is still reactive and others it is almost gone. It is down anywhere from 40-90 and is capable of producing large avalanches.
New loading from snow and wind, combined with significant warming, may be enough to wake up the mid February persistent weak layer and create very large avalanches.
New loading from snow and wind, combined with significant warming, could &quot;wake up&quot; the mid&nbsp; February persistent weak layer and create large avalanches.&nbsp;
Ongoing persistent avalanche activity proves layers formed about a month ago deserve respect and should still be in the front of your mind. See the Avalanche Summary in the Forecast Details section for more info on recent activity at this interface.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain may kick start this weakness with potential for very large and destructive avalanches.
Heavy loads of rain and snow combined with warm temperatures will test buried persistent weak layers that have the potential to produce large and destructive avalanches.
The mid-Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches. Warm temperatures and the load of the new snow may 'wake up' this weak layer and very large natural avalanches are possible.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain to mid-mountain elevations may kick start this weakness with potential for very large and destructive avalanches.
A deep, dense slab overlies a variety of weak layers and may still be reactive in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted into large, unsupported terrain.
Today proved that large avalanches are likely given the weather pattern. Avoid large features and overhead terrain. Choose mellow terrain and give the conditions lots of respect right now.
New loading from snow and wind, combined with significant warming, may be enough to wake up the mid February persistent weak layer and create very large avalanches.
New loading from snow and wind or rising temperatures could create a cohesive slab over this persistent weakness, down around 30-80 cm deep, and increase the odds of triggering this problem.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain may kick start this weakness with potential for very large and destructive avalanches.
Ongoing persistent avalanche activity proves layers formed about a month ago deserve respect and should still be in the front of your mind. Storm slab avalanches in motion or cornice falls may trigger the persistent weak layer.
A deep, dense slab overlies a variety of weak layers and may still be reactive in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted into large, unsupported terrain.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain to mid-mountain elevations may kick start this weakness with potential for very large and destructive avalanches.
The early Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches. Warm temperatures and the load of the new snow may 'wake up' this weak layer and very large natural avalanches are possible.
Heavy loading could be enough to trigger the mid-February facet/crust combo, particularly on northerly aspects. Step down avalanche are possible.
Persistent slabs are a greater concern in northern sections where old weak layers can be found in the upper meter of the snow pack. New loading from snow and wind, or a smaller avalanche could be enough to produce a very large avalanche.
Numerous skier triggered avalanche have recently occurred on this layer indicating how sensitive it is to skier triggering.
Heavy loading could be enough to trigger the mid-February facet/crust combo, particularly on northerly aspects. Step down avalanche are possible.
Persistent slabs are a greater concern in northern sections where old weak layers can be found in the upper meter of the snow pack. New loading from snow and wind, or a smaller avalanche could be enough to produce a very large avalanche.
There is potential for heavy loads like a cornice fall or a storm slab avalanche to step down and trigger a deeper persistent weak layer, down over a metre in most places.
A weak layer buried in mid-February is now down 60-120 cm deep. Triggering an avalanche on this layer would result in a very large and destructive avalanche.&nbsp;
The early February persistent weak layer may release naturally due to the added load of the forecast new snow and wind. Cornice falls or storm slab avalanches in motion may step down to this deeply buried weak layer.
Warm temperatures and the added load from the developing storm slab may increase the likelihood of triggering the early February persistent weak layer. Avalanches in motion may step down to this weak layer.
The early February weak layer may be stubborn to trigger, but long fracture propagations may still result if a large force such as a storm slab in motion or a cornice fall steps down to the persistent weak layer.
The Feb. 9th persistent weak layer  has been re-awakened in some parts of the forecast area by the new load of storm snow. An avalanche that steps down to this layer will produce a large and destructive avalanche event.
The&nbsp; Feb. and early March weak layers still remain reactive in some areas and may produce large, destructive avalanches. Warm temperatures, and the loading by new snow may 'wake up' these weak layers. Very large avalanches are possible.
Numerous Skier triggerred avalanches have been observed on this layer recently.  The warm temps are making this layer more reactive to stick to conservative terrain.
There are a couple of melt-freeze crusts buried between 100 and 200 cm deep. It has become much less likely to trigger these, but use caution on steep alpine slopes with thin or variable snow cover.
Persistent slabs are a greater concern in northern sections where old weak layers can be found in the upper 120 cm of the snow pack. There's potential for heavy loads like a falling cornice or a smaller avalanche to step down to these layers.
There is potential for heavy loads like a cornice fall or a storm slab avalanche to step down and trigger a deeper persistent weak layer, down over a metre in most places.
A weak layer buried in mid-February is now down 60-120 cm deep. Triggering an avalanche on this layer would result in a very large and destructive avalanche.&nbsp;
The early February weak layer may be stubborn to trigger, but long fracture propagations may still result if a large force such as a storm slab in motion or a cornice fall steps down to the persistent weak layer.
This persistent weak layer is buried 80 to 100cm at treeline and is sensitive to human triggering. Numerous avalanches, both human and naturally-triggered, have occurred on this layer in the past few days.
There are a couple of melt-freeze crusts buried between 100 and 200 cm deep. It has become much less likely to trigger these, but use caution on steep alpine slopes with thin or variable snow cover.
Persistent slabs are a greater concern in northern sections where old weak layers can be found in the upper 120 cm of the snow pack. There's potential for heavy loads like a falling cornice or a smaller avalanche to step down to these layers.
There is potential for heavy loads like a cornice fall or a storm slab avalanche to step down and trigger a deeper persistent weak layer, down over 1m in most places.
A weak layer buried in mid-February is now down 60-120 cm deep. Triggering an avalanche on this layer would result in a very large and destructive avalanche.
The early February weak layer may be stubborn to initiate, but could still be triggered by a large force such as a storm slab in motion or a cornice fall. Warming and solar radiation over the next few days may also activate this destructive layer.
This persistent weak layer is buried 70 to 90cm in Alpine and Treeline areas and is sensitive to human triggering. Numerous avalanches, both human and naturally-triggered, have occurred on this layer in the past few days.
There are a couple of old weak layers buried between 100 and 200 cm deep. It has become much less likely to trigger these but storm slab avalanches or cornice falls may step down to one of these layers.
="s_3FE45715">There are a couple of old weak layers buried between 60 and 150 cm deep. It has become much less likely to trigger these but storm slab avalanches or cornice falls may step down to one of these layers.
There is potential for heavy loads like a cornice fall or a storm slab avalanches to step down and trigger the persistent weak layer from early-Feb which is typically down 1-1.5m.&nbsp;
A weak layer buried in mid-February is now down 60-120 cm deep. The layer remains reactive to human triggering. Smaller avalanches have the potential to step down to this layer resulting in large, destructive avalanches.
This persistent weak layer is buried 70 to 100 cm in Alpine and Treeline areas and is sensitive to human triggering.&nbsp;  Be wary on large planar slopes.
There are a couple of persistent weak layers within the snowpack.  While generally well bonded, the layer can still produce avalanches in isolated areas.  Use extra caution in thin areas and on steep, unsupported features, especially on north aspects
There are a couple of persistent weak layers within the snowpack. While generally well bonded, the layer can still produce avalanches in isolated areas. Use extra caution in thin areas and on steep, unsupported features, especially on north aspects
This persistent weak layer is buried 70 to 100cm in Alpine and Treeline areas and is sensitive to human triggering. Large settlements are still occurring in some drainages near treeline highlighting this weakness.
There are a couple of persistent weak layers within the snowpack. While generally well bonded, the layer can still produce avalanches in isolated areas. Use extra caution in thin areas and on steep, unsupported features, especially on north aspects
Snowpack is settling and strengthening and the 0211 layer is slowly gaining strength.  At treeline this layer is down 70-100cm while in the alpine its down anywhere from 40cm to 150cm.  Sudden planar sheers are still being observed.
="s_3FE45715">50 - 100 cm of settled old storm snow has coalesced into a slab that is sitting on the March 02 suncrust / surface hoar combo.
="s_3FE45715">50 - 100 cm of settled old storm snow has coalesced into a slab that is sitting on the March 02 suncrust / surface hoar combo.
="s_3FE45715">50 - 100 cm of settled old storm snow has coalesced into a slab that is sitting on the March 02 suncrust / surface hoar combo.
The early-March weak layer remains very active and there has been a lot of recent activity on this layer.  Expect much of the new storm activity to release on this layer.
The early-March weak layer is still quite reactive to new snow loads and human-triggers.  The slab is now typically 30-70cm thick and continues to produce large avalanches.
The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty surrounding this layer, I suspect that the new storm snow is going to increase it's sensitivity to human triggering.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty surrounding this layer, I suspect that the new storm snow is going to increase it's sensitivity to human triggering.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty surrounding this layer, I suspect that the new storm snow is going to increase it's sensitivity to human triggering.
This persistent weak layer is buried 70 to 100cm in Alpine and Treeline areas and is sensitive to human triggering.
There has been less activity on this layer of late but dont forget this important interface.&nbsp; Dig frequently and evaluate this interface.
The early-March weak layer appears to have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders  The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.</span><span class="s_AA239
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
This persistent weak layer is buried 70 to 100cm in Alpine and Treeline areas and is sensitive to human triggering.
The early-March weak layer appears to have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders&nbsp; The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
The March weak layer seems to have re-awakened in some parts of the region with new snow loading and strong winds
This persistent weak layer is buried 70 to 100cm in Alpine and Treeline areas and is sensitive to human triggering. There is increasing potential for failure deeper in the snowpack as the weather warms!
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds.
The Feb. and March persistent weak layers appear to have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders&nbsp; The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar, continue to produce large avalanches in many parts of the region.
This persistent weak layer is buried 70 to 110cm in Alpine and Treeline areas and is sensitive to human triggering. The additional snow load on Thursday will make this layer more reactive and could trigger a natural avalanche cycle.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline and on south aspects, especially if the sun is shining.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds. </span><span class="s_AA239
The Feb. and March persistent weak layers have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders&nbsp; The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar, continue to be touchy, especially in the north of the region.
There has been less activity on this layer over the past little while.&nbsp; It is especially sensitive to triggerring from thinner snowpack areas.&nbsp; Avalanches in the upper snowpack may step down to this interface.
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds.
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds. - S
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline and on south aspects, especially if the sun is shining.
There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar, continue to be touchy, especially in the north of the region.
Field tests on a north aspect at 2350m still producing shears on the Feb 11 interface in the moderate range.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layers buried deep in the snowpack have recently become reactive with new snow loading. Conservative terrain choices are important now. </span><span class="s_AA239
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline and on south aspects, especially if the sun is shining.
="s_3FE45715">There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar, continue to be touchy, especially in the north of the region.
The Feb persistent weak layer is buried 80 to 110cm and is giving variable results in stability tests. This interface may be easier to trigger from shallow snowpack areas. If triggered this weakness has the potential to produce large avalanches.
The persistent weak layers buried deep in the snowpack are still there. Conservative terrain choices are important now.
Activity on the March and February weak layers has slowed down, but these layers are still subject to triggering with the right load, and would produce a very large destructive avalanche
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.</span><span class="s_AA239
="s_3FE45715">There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers of recently buried crusts and surface hoar remain untrustworthy. 
The Feb 10th layer down 80 to 120cm in the snowpack remains a concern. Sporadic avalanche activity on this layer continues to occur on all aspects. This layer will be a problem for some time to come.
="s_3FE45715">The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.  </span><span class="s_3FE45
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.&nbsp;
There are persistent weak layers buried deep in the snowpack. Conservative terrain choices are important now.
Activity on the March and February weak layers has slowed down, but these layers are still subject to triggering with the right load, and will produce a very large destructive avalanche
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.  </span><span class="s_AA239
="s_3FE45715">There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar continue to produce sudden failures in snowpack tests.
There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar, continue to produce sudden failures in snowpack tests.
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. The added load of the recent storm slabs may result in deep slab avalanches.
The added load of new snow may result in increased sensitivity to triggering the persistent weak layer of crusts/facets/surface hoar.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The feb 10 layer is down 80-120cm and remains a concern.  Sporadic&nbsp; avalanche activity still occurring on this layer with potential for large avalanches to occur.
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. The added load of the recent storm slabs may result in deep slab avalanches.
The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
There are a number of persistent layers in the mid to upper snowpack which have professional operators concerned. These layers, which include recently buried crusts and surface hoar, continue to produce sudden failures in snowpack tests.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. The added load of the recent storm slabs may result in deep slab avalanches.
The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
&nbsp; The Feb10th layer down 80 to 120cm remains a concern. Sporadic avalanche activity on this layer continues to occur on all aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This is still our most concerning layer. Large triggers (cornices or other avalanches) will likely result in very large and destructive avalanches. Avoid big terrain as this storm plays out.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
We have seen enough activity on this layer recently to keep it as a major concern in bigger terrain. Thin coverage areas are a likely trigger point, as are large triggers (ie cornice).
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. Periods of solar radiation may increase the sensitivity to triggering this buried weak layer.
The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Be aware of the potential for avalanches in the upper snowpack to step down the 0211 interface.&nbsp; This layer is still producing highly variable results so be sure to evaluate this layer often as you move through the terrain.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. Periods of solar radiation may increase the sensitivity to triggering this buried weak layer.</span><span class="s_AA239
="s_3FE45715">The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
This layer has not produced much activity of late but still remains a concern from thinner snowpack areas.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
="s_3FE45715">The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. Periods of solar radiation may increase the sensitivity to triggering this buried weak layer.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer. </span><span class="s_AA239
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
The Feb 10th persistent weak layer is still a concern. It is buried 90 to 120cm in the snowpack and remains reactive to stability tests. A very serious skier-triggered avalanche occurred on this layer on Sunday (see Avalanche Activity for details).
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> The Feb 10th persistent weak layer remains a concern and continues to give variable results in snowpack tests. A very serious avalanche accident occurred on this layer on Sunday (see </span><a href="https://www.facebook.com/KCPublicSafety" target="_blank"><span class="s_9255B882">photos</span></a><span class="s_AA239A9B">).
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might  trigger a deep persistent weak layer and result in a highly destructive avalanche</span><span class="s_AA239A9B">.
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep terrain. A small avalanche might trigger a deep persistent weakness, and may result in a highly destructive avalanche.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Use conservative route selection, stick to moderate angled terrain with low consequence.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Minimize exposure to sun exposed slopes when the solar radiation is strong.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
In a couple of new profiles on Tuesday we found this layer still producing clean shears in the 'hard' range down as much as 130cm near the divide.
The Feb 10th layer buried 90 to 120cm is reactive to stability tests and remains sensitive to human-triggering. Large naturally-triggered avalanches have been occurring on a daily basis, primarily triggered at Treeline.
="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might trigger a deep persistent weak layer and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to triggering on convex slopes, south aspects, and steep alpine terrain. A small avalanche might provide enough mass to trigger a persistent weakness and result in a highly destructive avalanche .
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep terrain. A small avalanche might trigger a deep persistent weakness, and may result in a highly destructive avalanche.
Assess this problem carefully as you approach bigger or steeper terrain at treeline and above. Thin areas seem to pose more of a problem lately.&nbsp; The Feb 10 layer is 120cm down, these avalanches have potential to be very large.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Weak layers buried earlier this month remain reactive to triggering on convex slopes, south aspects, and steep alpine terrain. A small avalanche might provide enough mass to trigger a persistent weakness and result in a highly destructive avalanche .</span><span class="s_AA239
Weaknesses buried earlier this month remain reactive to light triggers on convex slopes, solar aspects, and steep terrain. A small avalanche or cornice failure&nbsp; might trigger a deep persistent weakness, and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might trigger a deep persistent weak layer and result in a highly destructive avalanche.
These are still high on the list of problems. It is getting better, but very slowly. Be cautious on steep terrain at treeline. Assess the depth of the layer carefully and treat shallow areas with caution.
="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might trigger a deep persistent weak layer and result in a highly destructive avalanche.
Weaknesses buried earlier this month remain reactive to rider triggering on convex slopes, solar aspects, and steep terrain. A small avalanche or cornice failure&nbsp; might trigger a deep persistent weakness, and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to rider triggering on convex slopes, south aspects, and steep alpine terrain. A small avalanche might gain enough mass to trigger a persistent weakness and trigger a highly destructive avalanche.
Our comfort is getting better with this layer, but steep, treeline areas on a north aspects are still demanding some thought. Assess these slopes carefully and remember that we are in a low probability/high consequence situation.
="s_3FE45715">Weak layers buried earlier remain reactive to rider triggering on convex slopes, south aspects, and in steep alpine terrain. A small avalanche might gain enough mass to trigger a persistent weakness and produce a highly destructive avalanche.
Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche could trigger a buried deep persistent weak layer and result in a highly destructive avalanche.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Weaknesses buried earlier this month remain reactive to rider triggering on convex slopes, solar aspects, and steep terrain. A small avalanche or cornice failure might trigger a deep persistent weakness, and result in a highly destructive avalanche. </span><span class="s_AA239
This layer is still sensitive to trigger from thin or weak snowpack areas which are plentiful in KCountry.&nbsp; Choose routes that avoid thin spots especially on solar aspects later in the day.&nbsp;
The Feb 10th layer is becoming less reactive, but is still a concern buried 90 to 120cm in the snowpack. Shallow snowpack areas are a concern as a large alpine features.
This weak layer has been improving in general, but it will be more touchy during times of intense solar radiation and/or warming. Solar triggered avalanches today failed on this layer and also stepped to ground.
Thin areas are the common thread with all activity on this layer. Remember, the surface snow may be settling faster than the deeper layers, as a result the burial depth for the Feb 10th will be reduced.
This layer is becoming less reactive but still is something to be aware of in thin snowpack areas.
This layer has been on the problem list for a long time now. There is some confidence with it in most areas, but careful assessment and testing is still recommended before jumping into a big feature. Wide propagations are still possible.
Each day our confidence in this layer gets a little better. No failure was noted on today's profile. Thin areas however are still a concern. The east side of the Smith Dorrien and the front ranges will have more of a problem with this layer.
Thin steep terrain is the main place where forecasters are still aware of a potential problem with this interface.
Be wary of this week layer in thinner snowpack areas, especially during times of intense solar radiation and/or warming.
Continued avalanche activity indicates that weak layers are still reactive to human triggering, and can surprise with nasty consequences. Now is not the time to push into aggressive terrain.
Up to 100cm of recent storm snow overlies weak crystals which are most reactive at higher elevations. Triggering may have become less likely; however, avalanches on this layer could be large and destructive.
Up to 100cm of recent storm snow overlies weak crystals which are most reactive at higher elevations. Triggering may have become less likely; however, avalanches on this layer could be large and destructive.
="s_3FE45715">A touchy weak layer is now buried a metre or so down in the snowpack. It may be reactive to the weight of new snow, wind-loading or the additional weight of a skier or sledder. Avalanches on this layer could be surprisingly large.
Up to 100cm of recent snow overlies weak crystals which are most reactive at higher elevations. Triggering may have become less likely; however, avalanches on this layer would be large and destructive.
Portions of the region north of nelson may be capable of producing large avalanches due to two problematic layers in the snowpack. Reports are limited. Dig down and investigate for yourself before committing to bigger terrain.
Up to 100cm of recent storm snow overlies weak crystals which are most reactive at higher elevations. Remain conservative in your terrain selection and avoid steeper, unsupported planar slopes.
Up to 100cm of recent storm snow overlies weak crystals which are most reactive at higher elevations. Remain conservative in your terrain selection and avoid steeper, unsupported planar slopes.
Up to 100cm of recent storm snow overlies weak crystals which are most reactive at higher elevations. Remain conservative in your terrain selection and avoid steeper, unsupported planar slopes.
Up to 100cm of recent snow overlies weak crystals which are most reactive at higher elevations. Triggering may have become less likely; however, avalanches on this layer would be large and destructive
Little is known about this problem, but a recent observation suggest that there is a deeply buried weakness near the ground, at least in the Fernie area which may be susceptible to human triggering.
A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or even wind transported snow.  Avalanches on this layer could be surprisingly large.
="s_3FE45715">A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or even wind transported snow. Avalanches on this layer could be surprisingly large.
ont-weight: normal;font-size: 13.3333333333333px;color: #121212; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_17AE1194">Up to 1m of recent storm snow overlies weak crystals. Obvious signs of avalanche danger may be decreasing, but the snowpack remains capable of producing surprisingly large avalanches. </span><span class="s_AA239
Limited to the northern half of the forecast area, the persistent slab problem has the potential to ruin your winter before it starts. Avalanches initiating high in the snowpack may step down resulting in a surprisingly large avalanche.
ont-weight: normal;font-size: 13.3333333333333px;color: #121212; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_17AE1194">Up to 1m of recent storm snow overlies weak crystals. Obvious signs of avalanche danger may be decreasing, but the snowpack remains capable of producing surprisingly large avalanches. </span><span class="s_AA239
="s_3FE45715">Little is known about this problem, but a recent observation suggest that there is a deeply buried weakness near the ground, at least in the Fernie area which may be susceptible to human triggering.
="s_17AE1194">Up to 1m of recent storm snow overlies weak crystals. Obvious signs of avalanche danger may be decreasing, but the snowpack remains capable of producing surprisingly large avalanches.
Up to 100cm of recent snow overlies weak crystals which are most reactive at higher elevations. Triggering may have become less likely; however, avalanches on this layer would be large and destructive.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches are most likely to be triggered by people from thin snowpack areas, near rocky outcrops, and on steep alpine slopes.</span><span class="s_AA239
="s_3FE45715">A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or even wind transported snow. Forecasted warming may increase sensitivity to human triggering. Avalanches on this layer could be surprisingly large.
A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or even wind transported snow. Forecasted warming may increase sensitivity to human triggering. Avalanches on this layer could be surprisingly large.
="s_3FE45715">Weak crystals are buried in the upper metre or so of the snowpack. Deep avalanches on these layers are most likely to be triggered by people from thin snowpack areas, near rocky outcrops, and on steep alpine slopes.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Limited to the northern half of the forecast area, the persistent slab problem has the potential to ruin your winter before it starts. Avalanches initiating high in the snowpack may step down resulting in a surprisingly large avalanche.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Weak crystals are buried in the upper metre or so of the snowpack. Deep avalanches on these layers are most likely to be triggered by people from thin snowpack areas, near rocky outcrops, and on steep alpine slopes.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Weak crystals are buried in the upper metre or so of the snowpack. Deep avalanches on these layers are most likely to be triggered by people from thin snowpack areas, near rocky outcrops, and on steep alpine slopes.</span><span class="s_AA239
="s_17AE1194">The chances of triggering a persistent slab have decreased, but potential consequences remain high.
="s_17AE1194">The chances of triggering a persistent slab have decreased, but the consequences would be high.
="s_17AE1194">The chances of triggering a persistent slab have decreased, but the consequences would be high.
="s_17AE1194">The chances of triggering a persistent slab have decreased, but the consequences would be high.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or wind transported snow. Forecasted warming may increase sensitivity to human triggering. Avalanches on this layer could be surprisingly large.</span><span class="s_AA239
A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or wind transported snow. Forecasted warming may increase sensitivity to human triggering. Avalanches on this layer could be surprisingly large.
There are a few deeply buried weak layers in the snowpack. Not a lot is known about this structure, but it's likely that trigger-ability will increase as it's snowing and blowing.
A deeply buried crust with a weak layer of facets or surface hoar at the interface may exist in some parts of this region. Dig down and locate the crust, and then test how the upper snowpack is bonding to the crust.
Deeply buried weak layers of hard crusts with weak facetted crystals may exist in some areas. Dig down to locate the depth of the crusts and then observe how the snowpack is bonding to the crust. Let us know what you find.
You need to check the basement to see if it can support the rest of the structure. Dig down until you get to the November 20th crust and check how the rest of the snowpack is bonding to that crust. Let us know what you find.
="s_3FE45715">The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous.
="s_3FE45715">The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous.
The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The chances of triggering a persistent slab have decreased, but the consequences are still high.  Any slopes that did not avalanche during the last storm cycle should still be considered hazardous.</span><span class="s_AA239
Warming combined with increased loading from new snow or rain may increase the deeply buried slabs sensitivity to human triggers. Watch for thin spots around boulders or small trees that may be easy to trigger and then propagate to deeper areas.
The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
Rising freezing levels and the chance of loading from new snow or rain may increase the sensitivity to human triggers.
The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
A deeply buried crust with a weak layer of facets or surface hoar at the interface may exist in some parts of this region. Dig down and locate the crust, and then test how the upper snowpack is bonding to the crust.
The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
The chances of triggering a persistent slab have decreased, but the consequences are still high. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
A deeply buried crust with a weak layer of facets or surface hoar at the interface may exist in some parts of this region. Dig down and locate the crust, and then test how the upper snowpack is bonding to the crust.
="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.</span><span class="s_AA239
Rising freezing levels and the chance of loading from new snow or rain may increase the sensitivity to human triggers.
Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered potentially hazardous.
Warming combined with increased loading from new snow or rain may increase the deeply buried slabs sensitivity to human triggers. Watch for thin spots around boulders or small trees that may be easy to trigger and then propagate to deeper areas.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers can surprise with nasty consequences. Wet slabs are also a concern at all elevations.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers may surprise with nasty consequences.
Heavy and rapid loading from snow, rain, and wind could be enough to wake up persistent weak layers and produce large avalanches.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers may surprise with nasty consequences.
="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
="s_3FE45715">Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
Pockets of persistent slabs failing on the Nov 24th facet layer may be a concern in isolated features such as gullies and ridgelines.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. &quot;Whumpfing&quot; has been reported throughout the region, indicating this layer is still ready for triggering.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers may surprise with nasty consequences.
Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
Likelihood of triggering a deep weak layer is expected to increase with new storm loading and warming. Any slopes that did not avalanche during the last storm cycle should still be considered hazardous. Smaller avalanches may trigger a deep release.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should decrease heading into the weekend but be very wary of any slope that did not release or may have been reloaded during the latest storm cycle.</span><span class="s_AA239A9B">
&quot;Whumpfing&quot; at higher elevations has been reported throughout the region, indicating weak layers near the base of the snowpack are still ready for triggering. Any activity on these layers would be destructive in nature.
Recent observations have been extremely limited. However, I'd assume weak crystals near the base of the snowpack are still reactive in some areas. Avalanches at this interface are more likely at higher elevations and could be destructive in nature.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers may surprise with nasty consequences.
Warm temperatures may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers are more likely to be found at higher elevations, and may surprise with nasty consequences.
The likelihood of triggering a persistent slab should decrease heading into the weekend but be very wary of any slope that did not release or may have been reloaded during the latest storm cycle.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should decrease heading into the weekend but be very wary of any slope that did not release or may have been reloaded during the latest storm cycle.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should decrease heading into the weekend but be wary of any slope that did not release during the storms or has been reloaded. </span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should decrease heading into the weekend but be wary of any slope that did not release during the storms or has been reloaded. </span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should decrease heading into the weekend but be wary of any slope that did not release during the storms or has been reloaded. </span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should decrease heading into the weekend but be wary of any slope that did not release during the storms or has been reloaded. </span><span class="s_AA239A9B">
Recent observations have been extremely limited. However, I'd assume weak crystals near the base of the snowpack are still reactive in some areas. Avalanches at this interface are more likely at higher elevations and could be destructive in nature.
Recent observations have been extremely limited. However, I'd assume weak crystals near the base of the snowpack are still reactive in some areas. Avalanches at this interface are more likely at higher elevations and could be destructive in nature.
The best riding will be at higher elevations. So will the highest avalanche danger, so resist the temptation to venture into steep terrain. Persistent weaknesses have been overloaded by recent storms, and may surprise with nasty consequences.
="s_3FE45715">The likelihood of triggering a persistent slab should be decreasing with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.
The likelihood of triggering a persistent slab should be decreasing with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.
="s_3FE45715">The likelihood of triggering a persistent slab should be decreasing with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab should be decreasing with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.</span><span class="s_AA239
="s_3FE45715">The likelihood of triggering a persistent slab has decreased with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.
="s_3FE45715">The likelihood of triggering a persistent slab has decreased with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded. Remote triggering of this layer may be possible.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab has decreased with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.&nbsp; Remote triggering of this layer is also possible.</span><span class="s_AA239
The likelihood of triggering a persistent slab has decreased with dropping temperatures but be wary of any slope that did not release during the storms or has been reloaded.
The likelihood of triggering a persistent slab has decreased but the consequences remain very high.  Be wary of any slopes that did not release during the storms.
="s_3FE45715">The likelihood of triggering a persistent slab has decreased but the consequences remain very high. Be wary of any slopes that did not release during the storms. Remote triggering of this layer may also be possible.
="s_3FE45715">The likelihood of triggering a persistent slab has decreased but the consequences remain very high. Be wary of any slopes that did not release during the storms. Remote triggering of this layer may be possible.
an';font-style: Normal;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering a persistent slab has decreased but the consequences remain very high.  Be wary of any slopes that did not release during the storms.</span><span class="s_1681A
An avalanche on Sunday stepped down to deeply buried weak layers which formed in November. These destructive layers should remain on our radar as they could &quot;wake-up&quot; with large inputs such as a cornice fall or an avalanche in motion.
An avalanche on Sunday stepped down to deeply buried weak layers which formed in November. These destructive layers should remain on our radar as they could be triggered with large inputs such as a cornice fall or an avalanche in motion.
Storm snow from the last few days is coalescing into a slab that rests precariously on a potent combination of weak surface hoar and stout rain crust. Conditions are prime for large human triggered avalanches failing 30 - 70 cm deep.
: Normal;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">A very touchy surface hoar layer is buried by a 40-80 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
An isolated surface hoar layer remains a concern in the northeastern parts of the region.&nbsp; Look for this layer on sheltered north aspects slopes around treeline elevation.&nbsp;
1681A555">A very touchy surface hoar layer is buried by a 30-70 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
A buried surface hoar layer remains a concern, especially in the southern parts of the region.&nbsp; This layer appears to be most reactive on north facing slopes around treeline elevation.
1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
30 - 80 cm of storm snow from the last few days has coalesced into a slab above a touchy weak layer/crust combo. The stage is set for large human triggered avalanches.
New snow from the previous week is coalescing into a slab that rests on a stout crust. In some places a very weak layer of surface hoar may rest between the crust and the slab which is a prime setup for human triggered avalanches.
A slab 30 - 70 cm in depth remains sensitive to human triggering. This problem isn't likely to go away any time soon.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried surface hoar layer remains a concern, especially in the southern parts of the region.  This layer appears to be most reactive on north facing slopes around treeline elevation.  </span><span class="s_AA239
="s_3FE45715">A very touchy surface hoar layer is buried by a 40-80 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation remains a concern.
30 - 80 cm of snow from the last week has coalesced into a slab above a touchy weak layer/crust combo. This problem is likely to remain sensitive to human triggering for the foreseeable future.
="s_3FE45715">New snow from the previous week is coalescing into a slab that rests on a stout crust. In some places a very weak layer of surface hoar may rest between the crust and the slab which is a prime setup for human triggered avalanches.
The bond with the Dec 13th rain crust is poor in most areas. This is a concern in wind affected terrain where slabs up to 40cm thick are possible to trigger.
This persistent weak layer, buried up to 70cm below the surface, was responsible for a few close calls over the past week. Conservative terrain selection remains critical.
Thin windslabs and recent storm slabs may be sitting on a weak layer of surface hoar and/or a crust. This problem may persist through the Holiday season.
A crust which formed in December should remain on your radar. Not much is known about its distribution in the South Rockies. However, in neighboring regions it has produced large avalanches. Dig down and test weak layers before committing to a line.
The 50-70 cm deep slab continues to be triggered from steep convex rolls and adjacent terrain. The forecast cooling is expected to help preserve the buried weak layer, resulting in this problem persisting through the Holidays.
This persistent weak layer, buried up to 80cm below the surface, may increase in reactivity with new snow loading on Saturday night. Conservative terrain selection remains critical.
A buried surface hoar layer remains a concern, especially in the southern parts of the region.  This layer appears to be most reactive on north facing slopes around treeline elevation. Wind slabs may be building above this weakness.
This slab may continue to be triggered by skiers and riders, and may result in long fracture propagations resulting in large avalanches.
The mid-December surface hoar/ crust weak layer is buried down 40-60 cm and may be triggered by travelling on adjacent terrain. Triggering this slab may result in long fracture propagations and large avalanches.
Persistent slabs are failing on a layer of facets overlying the Dec 13th Crust.
A touchy layer of buried surface hoar crystals has been responsible for numerous small avalanches over the past few days.
Thin windslabs and recent storm slabs may be sitting on a weak layer of surface hoar and/or a crust. This problem may persist through the Holiday season.
A persistent weak layer, buried up to 70cm below the surface, was responsible for a few close calls over the past week. Conservative terrain selection remains critical.
The recent storm slab may be triggered by light additional loads like a skier/rider. Remotely triggering avalanches from travel on adjacent terrain continues to be likely.
The mid-December surface hoar/ crust weak layer is buried down 40-60 cm and may be triggered by travelling on adjacent terrain. Triggering this slab may result in long fracture propagations and large avalanches.
The 50-70 cm deep slab continues to be triggered from steep convex rolls and adjacent terrain. The forecast cooling is expected to help preserve the buried weak layer, resulting in this problem persisting through the Holidays.
A persistent weak layer, buried up to 80cm below the surface, has the potential for wide propagations. Conservative terrain selection remains critical.
A crust which formed in December should remain on your radar. Not much is known about its distribution in the South Rockies. However, in neighboring regions it has produced large avalanches. Dig down and test weak layers before committing to a line.
Slabs are still failing on a layer of facets above the December rain crust. Watch for this condition in the Alpine and open areas at Treeline.
The mid-December surface hoar/ crust weak layer is buried down 60-80 cm and may be triggered by travelling on adjacent terrain. Triggering this slab may result in long fracture propagations and large avalanches.
The 60-80 cm deep slab continues to be triggered from steep convex rolls and adjacent terrain. The forecast cooling is expected to help preserve the buried weak layer, resulting in this problem persisting through the Holidays.
The mid-December crust and surface hoar layer is now buried between 50-80 cm and continues to be a concern for triggering by light additional loads like a skier/rider.
Thin windslabs and recent storm slabs may be sitting on a weak layer of surface hoar and/or a crust. This problem may persist through the Holiday season.
A touchy layer of buried surface hoar crystals has been responsible for numerous small avalanches over the past few days.
A persistent weak layer, buried up to 90cm below the surface, has been reactivated by recent storm loading producing large avalanches. Conservative terrain selection remains critical.
A crust which formed in December should remain on your radar. Not much is known about its distribution in the South Rockies. However, in neighboring regions it has produced large avalanches. Dig down and test weak layers before committing to a line.
A persistent weak layer, buried up to 90cm below the surface, was responsible for a few close calls over the past week. The key to safe backcountry travel is in conservative terrain selection.
1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.</span><span class="s_AA239
: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.</span><span class="s_AA239
Conditions are still touchy on the Dec 13th rain crust where wind slabs exist. Watch for this condition as you transition into open areas at Treeline and expect widespread wind slab conditions in the Alpine.
The weak layer of surface hoar and crusts is down about 30-50 cm in most areas and may be deeper where new windslabs have developed. The weak layer continues to easy to trigger with light additional loads like a skier or rider.
The buried weak layer of surface hoar and crust continues to be triggered by skiers and riders. This persistent weak layer allows for long propagations and triggering from adjacent terrain. Wind slab avalanches in motion may step down to this layer.
A crust which formed in December should remain on your radar. Not much is known about its distribution in the South Rockies. However, in neighboring regions it has produced large avalanches. Dig down and test weak layers before committing to a line.
The mid-December crust and surface hoar layer is now buried between 50-80 cm and continues to be a concern for triggering by light additional loads like a skier/rider.
The persistent weak layer of buried surface hoar and crusts continues to allow for easy triggering with light additional loads on the snowpack. Remote triggering from adjacent terrain and long fracture propagations are expected to continue.
A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A touchy persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow, human triggering is likely and remains a concern. </span><span class="s_AA239
Warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 - 120 cm.  Surface avalanches in motion may step down to this interface.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 - 120 cm.  Surface avalanches in motion may step down to this interface.</span><span class="s_AA239
="s_3FE45715">A buried surface hoar/ crust layer demands respect. It has been easy to trigger persistent slabs with light loads (like a person). This layer is down about 30-50 cm in most areas, but may be deeper where wind slabs have developed.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow, human triggering is likely and remains a concern.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A buried surface hoar/ crusts layer demands respect. It is easy to trigger persistent slabs, even from a distance.
A crust formed in mid-December is buried near 70 cm down and should be on your radar. Not much is known about its distribution. Dig down and test weak layers and watch for this condition as you transition from treeline and above.
A buried surface hoar/ crust layer demands respect. It has been easy to trigger, even from a distance. As new snow builds above this weakness, avalanches are expected to become larger and easier to trigger.
="s_3FE45715">A buried surface hoar/ crust layer demands respect. It has been easy to trigger persistent slabs, even from a distance. As new snow builds above this weakness, avalanches are expected to become larger and easier to trigger.
="s_3FE45715"> A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
Continued warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 to 120 cm. Surface avalanches in motion may also step down to this interface.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 to 120 cm. Surface avalanches in motion may also step down to this interface.</span><span class="s_AA239
A series of crusts in the upper and middle snowpack may be reactivated by the storm.  Surface avalanches in motion have the potential to step down creating large destructive avalanches.
A crust formed in mid November remains sensitive to human triggering, especially in thin spots near rock outcroppings. Surface avalanches in motion may step down to this interface too.
The Dec 13th Crust seems to disappear around 2200m. Watch for windslabs overlying this crust in and around this elevation band
A buried surface hoar/ crust layer demands respect. It has been easy to trigger, even from a distance. As new snow builds above this weakness, avalanches are expected to become larger and easier to trigger.
A buried surface hoar/ crusts layer demands respect. It is easy to trigger persistent slabs, even from a distance. New snow will add stress to this volatile layer.
A buried surface hoar/ crusts layer demands respect. It is easy to trigger persistent slabs, even from a distance.
A buried surface hoar/ crust layer demands respect. It has been easy to trigger persistent slabs with light loads (like a person). This layer is down about 30-50 cm in most areas, but may be deeper where wind slabs have developed.
Several persistent weak layers exist in the upper to middle snowpack. It might take a large load (like a cornice fall), major weather input (heavy rain or snow), or a rider hitting the sweet spot to trigger this problem.&nbsp;
A series of crusts in the upper and middle snowpack may be reactivated by the storm. Surface avalanches in motion have the potential to step down creating large destructive avalanches.
A crust buried in mid November remains sensitive to human triggering, especially in thin spots near rock outcroppings. Surface avalanches in motion may step down to this interface.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow consolidating and human triggering remains a concern.
A crust that formed in mid-December is buried near 70 cm down. Not much is known about its distribution. Dig down and test weak layers and watch for this condition as you transition from below treeline to treeline and above.
A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
Seems to be more of a problem in treeline areas.
There are a couple of persistent weak layers in the top 80 cm of the snowpack, including surface hoar on sheltered shady slopes and a crust/facet layer. These weaknesses could wake up with heavy loading from rain and snow on Sunday/Monday.
Several persistent weak layers exist in the upper to middle snowpack. It might take a large load (like a cornice fall), major weather input (heavy rain or snow), or a rider hitting the sweet spot to trigger this problem.&nbsp;
A series of crusts in the upper and middle snowpack may wake up with loading from snow or wind. Surface avalanches in motion have the potential to step down creating large destructive avalanches.
A crust buried in mid November remains sensitive to human triggering, especially in thin spots near rock outcroppings. Surface avalanches in motion may step down to this interface.
Persistent slab problems have been of particular concern in the south of this region at elevations between 1600 m and 2100 m. The culprit is a crust with weak surface hoar crystals. This layer is found to the north as well, but is harder to trigger.
An easily-triggered and prominent layer of surface hoar overlying a crust is buried around 60-80 cm below the surface and is still producing avalanches, especially on steep, convex terrain around treeline.
An easily-triggered and prominent layer of surface hoar overlying a crust is buried typically around 60-80 cm below the surface and is still producing avalanches, especially on steep, convex terrain around treeline.
A buried crust/surface hoar layer demands respect. It has been easy to trigger with light loads (like a person). This layer is down about 30-50 cm in most areas, but may be deeper where wind slabs have developed.
A buried surface hoar/ facet/ crust interface is buried 70 cm down. Dig down and test weak layers and watch for this condition as you transition from treeline and above. Conservative terrain selection required.
A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow consolidating and human triggering remains a concern.
The December rain crust is still possible to trigger down 30 to 50cm at 2200m. Recent stability tests indicate failures at this interface in the moderate range.
Heavy loading from new snow, wind, and/or rain could overload persistent weaknesses in the upper 100 cm of the snowpack. The resulting avalanche would be very large and destructive.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Heavy loading from new snow, wind, and/or rain could overload persistent weaknesses in the upper 100 cm of the snowpack. The resulting avalanche would be very large and destructive.  </span><span class="s_AA239A9B">
Loading by new snow and wind could be enough to trigger deeper persistent weaknesses in the snowpack.&nbsp;
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches. 
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. This weak layer has a variable distribution across the region. Dig down and find out if you have this layer and how it reacts in tests.
The mid-December crust and surface hoar layer is now buried between 50-80 cm and continues to be a concern for triggering by light additional loads like a skier/rider.
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering and remote triggering from adjacent terrain.&nbsp;
The persistent weak layer has been reported to be variable across this region. If the layer exists in your area, it may be easy to propagate long fractures resulting in large avalanches. Dig down to locate and evaluate the weak layer.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow consolidating and human triggering remains a concern.
A crust which formed in December should remain on your radar as it has recently produced large avalanches in the south of the region.&nbsp; Dig down and test weak layers before committing to a line.
A widespread persistent weak layer continues to react to light loads with the potential for large avalanches. Conservative terrain selection remains critical.
A layer of facets over this crust is continuing to produce results in the easy to moderate range.
Heavy loading from new snow, wind, and rain could overload persistent weaknesses in the top 1 m of the snowpack, leading to very large and destructive avalanches.&nbsp;
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass.
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches.
The developing storm slab may be enough load to trigger the persistent weak layer. Storm slab avalanches in motion may step down to the deeply buried weak layer resulting in large avalanches.
The developing storm slab will add to the load above the mid-December persistent weak layer. This may not be enough load to trigger naturally, but may increase propagation distance and the likelihood of remote triggering.
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. Storm slabs avalanches in motion may step down to this deeply buried weak layer.
The developing new storm slab may be enough load to increase the likelihood of triggering the mid-December weak layer.
A crust/surface hoar combo which formed in December should remain on your radar. In places where the overlying slab is well developed, large and destructive avalanches are possible.
A crust which formed in December should remain on your radar as it has the potential to produce large avalanches. Dig down and test weak layers before committing to a line.
This weak layer continues to produce avalanches under light loads. With the added stress of the new snow, avalanches at this interface could be large and destructive.
Watch open areas where slabs may have recently gotten thicker. Use supported terrain to your advantage and avoid convex terrain where possible.
The lack of a windslab on top of this layer is keeping the avalanche activity limited. Watch for a change in density as you travel. This change may signal a potential windslab.
Heavy loading from new snow, wind, and rain could overload persistent weaknesses in the top 1 m of the snowpack, leading to very large and destructive avalanches.
="s_3FE45715">Heavy loading from new snow, wind, and rain could overload persistent weaknesses in the top 1 m of the snowpack, leading to very large and destructive avalanches.
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass. The weight of the new snow may increase the likelihood of triggering one of these layers.
The developing storm slab will add to the load above the mid-December persistent weak layer. This may not be enough load to trigger naturally, but may increase propagation distance and the likelihood of remote triggering.
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches.
The mid-December persistent weak layer may release naturally due to the new load of storm snow, or be triggered by storm slab avalanches in motion.
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. Storm slabs avalanches in motion may step down to this deeply buried weak layer.
The developing storm slab may be enough load to trigger the persistent weak layer. Storm slab avalanches in motion may step down to the deeply buried weak layer resulting in large avalanches.
A crust/surface hoar combo which formed in December should remain on your radar. In places where the overlying slab is well developed, large and destructive avalanches are possible.
A crust which formed in December should remain on your radar as it has the potential to produce large avalanches. Dig down and test weak layers before committing to a line.
A weak layer which formed in December continues to produce avalanches under light loads, and is now buried by up to 100cm of snow. With the added stress of the new snow, avalanches at this interface are more likely, and could be highly destructive.
There is enough snow on all aspects now to extend the concern with this layer. Watch for snow with a cakey feeling to it as you approach treeline elevations.
="s_3FE45715">A problematic layer of weak surface hoar on a hard crust continues to produce avalanches under light loads.  Now down around a meter below the surface, avalanches at this interface are still likely and could be highly destructive.
A crust/surface hoar combo which formed in December should remain on your radar. In places where the overlying slab is well developed, large and destructive avalanches remain possible.
The new storm slab will add to the load above the mid-December persistent weak layer. This may not be enough load to trigger naturally, but may increase propagation distance and the likelihood of remote triggering.
Persistent weak layers down around 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.
The new storm slab may be enough load to trigger the persistent weak layer. Storm slab avalanches in motion may step down to the deeply buried weak layer resulting in large avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weak layers down around 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.</span><span class="s_AA239
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. Storm slabs avalanches in motion may step down to this deeply buried weak layer.
The mid-December persistent weak layer may release naturally due to the new load of storm snow, or be triggered by storm slab avalanches in motion.
="s_3FE45715">A crust which formed in December should remain on your radar as it has the potential to produce large avalanches. Dig down and test weak layers before committing to a line.
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass. The weight of the new snow may increase the likelihood of triggering one of these layers.
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches.
Steep terrain on all aspects will be a concern. Today's heat has settled the surface snow on all aspects making the snow slightly stiffer. The bond with the crust is worth some inspection and evaluation.
A crust/surface hoar combo which formed in December should remain on your radar. In places where the overlying slab is well developed, large and destructive avalanches remain possible.
A crust which was buried in December should remain on your radar as it has the potential to produce large avalanches. Dig down and test weak layers before committing to a line.
There is potential to trigger avalanches on a weak layer buried 80-100 cm deep. Be vary wary of slopes that did not slide slide during the last storm and be aware of the potential for triggering slabs from a distance.
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass. The weight of the new snow may increase the likelihood of triggering one of these layers.
There are a couple buried persistent weak layers in the upper and mid snowpack. The weight of the new snow may increase the likelihood of triggering one of these layers.
Persistent weak layers down over 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.
The persistent weak layer of buried surface hoar and crust continues to be a concern for remote and human triggering. This layer is now down more than a metre and may result in very large and destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layer of buried surface hoar and crust continues to be a concern for remote and human triggering. This layer is now down about 50-70 cm and may result in very large and destructive avalanches.</span><span class="s_AA239A9B">
Persistent weak layers down over 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.
The persistent weak layer of surface hoar and crust that was buried in mid-December continues to be a concern for human and remote triggers. This weak layer is more than three weeks old and still gives easy shears in some snow profile tests.
The mid-December persistent weak layer of buried surface hoar and crust continues to be likely to trigger from human activity. Snow profile tests on this layer continue give moderate to hard sudden planar results.
The windslabs sitting on the crust are a concern on steep, open areas at upper treeline.
There is potential to trigger avalanches on a weak layer buried 80-100 cm deep. Be vary wary of slopes that did not slide slide during the last storm and be aware of the potential for triggering slabs from a distance.
A crust/surface hoar combo, 50-80 cm deep, should remain on your radar. This weakness produced large slab avalanches during and just after the recent storm.
A buried persistent weakness down 30-50 cm should remain on your radar as it has the potential to produce large avalanches. Dig down and test weak layers before committing to a line.
Two persistent layers in the snowpack remain a concern. These are down around 60cm and 120cm. Triggering these layers is unlikely where the surface crust is supportive but use caution anywhere you are breaking through the crust.
Two persistent layers in the snowpack remain a concern. These are down around 60cm and 120cm. Triggering these layers is unlikely where the surface crust is supportive but use caution anywhere you are breaking through the crust.
There are a couple persistent weak layers in the middle of the snowpack. Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of these deeper layers. These layers were most reactive in the north of the region.
="s_3FE45715">There are a couple persistent weak layers in the middle of the snowpack. Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of these deeper layers. These layers were most reactive in the north of the region.
A persistent weakness buried mid-December is primed for human triggers in specific areas. Watch for signs of instability especially during daytime warming.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
At treeline there has been a few natural avalanche on this interface.&nbsp; Be sure to evaluate it as you commit to terrain.
A crust/surface hoar combo, 50-80 cm deep, should remain on your radar. This weakness produced large slab avalanches during and just after the recent storm.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A buried persistent weakness, down 30-50 cm, should remain on your radar as it has the potential to produce large avalanches.
Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of the deeper persistent weak layers. These layers were most reactive in the north of the region recently.
With forecast cooling, persistent slab avalanches should become unlikely to trigger. That said, a recent human-triggered slide suggests they are still possible to initiate in isolated terrain.
With forecast cooling and surface crust development, persistent slab avalanches will become much less likely to trigger. If there is no surface crust, persistent weaknesses may be more sensitive to triggering, especially in the north of the region.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A buried persistent weak layer (down 80-100 cm) has been responsible for numerous large natural and rider triggered avalanches this week. Triggering remains a concern with the potential for creating large high-consequence slides.
Weak layers still exist in the mid snow pack and rider triggering is possible. Cornice failures and small avalanches may produce a larger avalanche.
This layer will be with us for the winter and seems the most &quot;triggerable&quot; at this time.&nbsp; Be heads up as you transition into wind affected terrain especially at treeline.
A crust/surface hoar combo, 50-80 cm deep, should remain on your radar. This weakness produced large slab avalanches during and just after the recent storm.
A buried persistent weak layer (down 80-100 cm) has been responsible for numerous large natural and rider triggered avalanches this week. Triggering remains a concern with the potential for creating large high-consequence slides.
A buried persistent weakness, down 30-50 cm, should remain on your radar as it has the potential to produce large avalanches.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
No reports yesterday of avalanches, but a skier accidental 2 days ago reminds us that isolated thin snowpack areas may still pose a hazard.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Cool temperatures and a thick crust has capped the most recent storm snow making rider triggering unlikely on all but the most northerly (and shaded) aspects where buried surface hoar remains at treeline and above.
The slab will gain strength and should bond as time goes on, however, the weak layer still exists in the mid snow pack. A cornice failure or small avalanche could trigger this layer and produce a large destructive avalanche.
Rider triggering is unlikely at this time, but a  larger trigger such as a small avalanche or a cornice failure might trigger deeper instabilities.
Watch for unsupported features and wind affected areas at treeline.
A persistent weak layer, buried up to 90cm below the surface, is variably reactive and still has the potential to cause large avalanches. Take your time and test weak layers before committing to a line.
The buried storm slab should be bonding well with the mild temperatures, but still remains a serious consideration. A small avalanche could trigger this buried dense slab, and produce a large destructive avalanche.
A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
A thick crust has capped the snowpack in most areas, but wind slabs and surface hoar may still exist on northerly and shaded areas at treeline and above.
A small avalanche could produce enough force to trigger a deeply buried instability.
One report of a loose-dry avalanche running on the Jan 10th crust. Thin snowpack areas and windslabs may still present problems.
Continued skier-triggered avalanche activity is a clear indication that weak layers, buried up to 120cm below the surface, have not gone away. I'd remain conservative in my terrain selection, and exercise cautious group management.
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</style><p class="p_CC664AAA"><span class="s_1681A555">A persistent weakness buried mid-December is spotty in distribution and widely variable with regard to reactivity which makes management tricky.&nbsp; It remains most&nbsp; prevalent at and below treeline where human triggered avalanches are most likely.</span><span class="s_AA239
This problem seams to be most prevalent at and below 1800m. It's an unusual setup, but it may actually be less sensitive in the Alpine.
="s_3FE45715">A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains VERY problematic at and below treeline where the snowpack structure is primed for human triggering.
The persistent weakness buried mid-Dec is spotty in distribution and widely variable with regard to reactivity which makes management tricky. It remains most prevalent at and just below treeline where human triggered avalanches are most likely.
Watch open areas at treeline. Avoid steep, unsupported terrain.
A couple of persistent weak layers, buried within the top 90cm, are variably reactive and have the potential to cause large avalanches. Take your time and test weak layers before committing to a line.
A small avalanche or cornice failure could produce enough force to trigger this buried weak layer.
Whumpfing and remotely triggered avalanches are strong indications that persistent weak layers have not gone away. Large avalanches are still possible.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure is primed for human triggering.
A small avalanche or a cornice failure might trigger deeply buried instabilities.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains very problematic at and just below treeline where the snowpack structure may be primed for human triggering.
Pockets of wind-blown snow are the spots to watch out for now.  Those little patches of soft snow drifted into north facing and shaded places may not yet be bonded well. A small avalanche might trigger a deep instability.
Winds from the SW may be redistributing snow onto NE slopes at upper elevations and tree line. A small avalanche may produce enough force to trigger deeply buried instabilities.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains VERY problematic at and just below treeline where the snowpack structure may be primed for human triggering.
A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
="s_3FE45715">Persistent slabs can still be triggered by a person in the right spot. These could be surprisingly large. Overall the chances of triggering have dropped, but consequences remain high.
A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
A couple of persistent weak layers, buried within the top 90cm, are variably reactive and have the potential to cause large avalanches. Take your time and test weak layers before committing to a line.
Windloaded areas at upper treeline and above are still of concern.
We haven't seen any activity on this layer for a while, but it's still lurking down there waiting for trigger.
This mid layer crust facet combination will take a long time to go away.&nbsp; Rapid warming, rapid loading, or an avalanche event could bring this dragon back to life.
The snowpack is static for the time being with the only concerns being treeline and above where there may be lingering wind slabs
Pockets of wind-blown snow are the spots to watch out for now.&nbsp; A small avalanche might trigger a deep instability.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
The persistent weakness buried mid-Dec is spotty in distribution and widely variable with regard to reactivity which makes management tricky. It remains most prevalent at and just below treeline where human triggered avalanches are most likely.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
Be cautious around the treeline elevation where this layer seems most triggerable.
A couple of persistent weak layers, buried within the top 90cm, are variably reactive and have the potential to cause large avalanches. Take your time and test weak layers before committing to a line.
A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
The incoming storm snow will be falling on a variety of old snow surfaces including temperature crusts, windblown snow and surface hoar. Conditions will be tricky until the new snow settles and stabilizes. A small slide might wake up a weak layer.
Persistent slabs may be triggered by the weight of a person or snowmobile in specific areas. Most likely trigger points are where the snowpack transitions from thick to thin, around rocks and trees, and on steep convex rolls.
The persistent weakness buried mid-Dec is spotty in distribution and widely variable with regard to reactivity which makes management tricky. It remains most prevalent at and just below treeline where human triggered avalanches are most likely.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
The crust now covering most of the region makes triggering of this layer unlikely, but a small wind-slab avalanche on sheltered north aspects might provide the force to awaken this weak layer.
This buried layer is still reactive with a large enough trigger.
This weakness is widely variable in depth and seems to be mostly around tree-lane and below . It could be triggered by a small wind-slab avalanche or the weight of a snow machine.
Heads in treeline areas.
Wind slab avalanches may be able to trigger deeper weak layers. Persistent slabs may also be triggered by the weight of a person or snowmobile in specific areas such as thin spots or convexities in the slope.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The mid-December weak layer remains problematic at and below treeline where the snowpack structure may still be primed for human triggering in some areas.  The weight of the new snow may increase the reactivity of this layer. </span><span class="s_AA239
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas.  The weight of the new snow may increase the reactivity of this layer.
A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
="s_3FE45715">The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
A couple of persistent weak layers, buried within the top 90cm, are variably reactive and have the potential to cause large avalanches. Take your time and test weak layers before committing to a line.
This buried layer is still on the radar and could be reactive with a large enough trigger.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas.  The weight of the new snow may increase the reactivity of this layer. </span><span class="s_AA239
For the most part, this persistent slab is on lock-down right now. It might, however, be triggered at higher elevations on north aspects where the recent warm temperatures did not create a surface crust.
This persistent slab problem may be out of the picture soon, but might be triggered on high north aspects where the recent crust did not develop.
This weakness is widely variable in depth and seems to be mostly around tree-line and below . It could be triggered by a small wind-slab avalanche or the weight of a snow machine.
Treeline areas is where one can expect to enouter this problem.
="s_3FE45715">Wind slab avalanches may be able to trigger deeper weak layers, creating surprisingly large avalanche. Persistent slabs may also be triggered by the weight of a person or snowmobile in specific areas such as thin spots or convexities in the slope.
A deeply buried crust layer is still on the radar. It could be triggered by wind slabs or cornice fall, or by the weight of a person in a thin or variable snowpack area.
="s_3FE45715">A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
A persistent weak layer is widely variable in depth. It could be triggered by a person or snowmobile hitting a sweet spot, creating a surprisingly large avalanche.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A couple of persistent weak layers, buried within the top 100cm, are variably reactive and have the potential to cause large avalanches. Take your time and test weak layers before committing to a line
The weight of the new snow, or an avalanche in motion, may be the tipping point for renewed destructive activity on weak layers which formed in December.
Although less likely to trigger, persistent weak layers are capable of producing large and destructive avalanches. Use increased caution around big, unsupported slopes.
Avalanche in the upper snowpack may step down to this deeper layer.&nbsp; Field tests show a layer of facets on top of this crust producing moderate sheers.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
New snow and wind may spark renewed activity on weak crystals buried in mid-December. Although less likely, avalanches at this interface would likely be destructive in nature.
Although less likely to trigger, persistent weak layers are capable of producing large and destructive avalanches. Use increased caution around big, unsupported slopes.
="s_3FE45715">Storm slab avalanches may step down and trigger larger avalanches on weak layers deep in the snowpack.
A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.
Deeply buried snowpack weaknesses are most likely to be triggered from shallow snowpack areas, or with a very heavy load like a cornice fall or airborne snowmobile landing.
Facets on top of the crust are continuing to produce moderate results indicating that there is still potential for human triggerring on this interface.
Although less likely to trigger, persistent weak layers are capable of producing large and destructive avalanches. Use increased caution around big, unsupported slopes, especially in the south of the region.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
A buried persistent weakness, down 40-80 cm, should remain on your radar as it has the potential to produce large avalanches.
New snow and wind may spark renewed activity on weak crystals buried in mid-December. Although less likely to trigger, avalanches at this interface could be destructive in nature.
Although less likely to trigger, avalanches failing on persistent weak layers formed in December could be destructive in nature.
A layer of facets sits on the Dec 1th crust layer which is reactive in the moderate range down 40 to 50cm at Treeline. With the recent wind and snow load this layer has become more sensitive to triggering.
Buried persistent weakness should remain on your radar as they has the potential to produce large avalanches.&nbsp; Smaller avalanches or cornice falls have the potential to trigger a deeper weakness.
Reports suggest the mid-December weak layer has become less likely to trigger. That said, the weight of the new snow or an avalanche in motion may increase the reactivity of this potentially destructive layer.
A persistent weakness down 40-80cm should remain on your radar as it has the potential to produce large avalanches.
Recent storm loading may spark renewed activity on weak crystals buried in mid-December. Although less likely to trigger, avalanches at this interface could be destructive in nature.
Two persistent weakness remain a concern in the mid-pack. The early-Jan and mid-Dec layers are down around 50cm and 80cm, respectively.&nbsp; Human triggering remains possible or smaller avalanches may step-down to one of these layers.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A persistent weakness down 40-80cm should remain on your radar as it has the potential to produce large avalanches. 
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 45 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 30 and 50 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
Around 30cm of snow sits on the widespread mid-Jan surface hoar/crust layer. The distribution of the slab reactivity is still uncertain so use an investigative approach.  Watch for signs of a widespread instability in your local area.
This problem is easily tracked and assessed. Open areas at treeline are more suspect.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 30 and 50 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 45 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
~30cm of snow sits on the widespread mid-Jan surface hoar/crust layer. In wind loaded areas, the slab may be around 50cm thick. The reactivity of the slab may not have reached full potential in many areas but is expected to with warming and new load.
Be heads up for this layer around treeline and in sheltered areas.&nbsp;
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 30 and 50 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 45 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
~30cm of snow sits on the widespread mid-Jan surface hoar/crust layer. In wind loaded areas, the slab may be up to 50cm thick. The reactivity of the slab may not have reached full potential in many areas but is expected to with new load and warming.
Touchy surface hoar down 20-30cm is well preserved throughout the region and has likely not seen critical loading in most areas.&nbsp; This storm is expected to produce widespread activity on this layer.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 50 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading or warming
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading.
This layer is proving to be spotty. Parties have reported large settlements in some areas, but nothing in others. Be diligent in looking for it as it may be a significant concern.
Upper treeline is where this is more of a concern. Steep, unsupported terrain is suspicious at the moment.
Warming temperatures can increase the reactivity of persistent slabs and storm slabs, which overlie a touchy weak layer of buried surface hoar.
A weak layer of surface hoar crystals is buried between 50 and 80 cm below the surface, on south aspects this layer sits above a crust. This layer will take time to adjust to the new snow load and warm temperatures and can produce large avalanches.
A weak layer of surface hoar crystals is buried between 60 and 90 cm below the surface, on south aspects this layer sits above a crust. This layer will take some time to adjust to the new snow and warm temperatures and can produce large avalanches.
About 100cm of recent storm snow overlies weak crystals which formed in early January. In recent days, very large avalanches were observed on these layers, and human triggering remains a very real concern.
A weak layer of surface hoar is buried between 60 and 90 cm below the surface, on south aspects this layer sits above a crust. This layer produced has produced large avalanches and it will take some time to adjust to the new snow and warm conditions.
A weak layer of surface hoar crystals is buried between 40 and 80 cm below the surface, on south aspects this layer sits above a crust. This layer has the will take some time to adjust to the new load and warming temperatures
="s_3FE45715">A weak layer of surface hoar above a crust is buried by 40 to 85 cm of snow. It has the potential to be triggered naturally or by humans and produce large avalanches. Conditions are likely to be especially touchy in wind loaded features.
Warm temperatures may increase the reactivity of persistent slabs and storm slabs, which overlie a touchy weak layer of buried surface hoar.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A weak layer of surface hoar above a crust is buried by 45 to 80 cm of snow. This layer remains touchy. It has the potential to be triggered naturally or by humans and produce large avalanches.
="s_3FE45715">A weak layer of surface hoar above a crust is buried by 40 to 70 cm of snow. This layer remains touchy. It has the potential to be triggered naturally or by humans and produce large avalanches.
="s_3FE45715">A weak layer of surface hoar above a crust is buried by 40 to 70 cm of snow.  This layer remains touchy.  It has the potential to be triggered naturally or by humans and produce large avalanches.</span><span class="s_3FE45
Over 100cm of recent storm snow overlies weak crystals which formed in early January. In recent days, very large avalanches were observed on these layers, and human triggering remains a very real concern.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 cm of snow.  I anticipate that natural avalanches will remain possible and human triggered avalanche likely as this layer adjusts to the warm temperatures</span><span class="s_AA239
Storm loading and warm temperatures have added reactivity and destructive potential to weak crystals which formed in early January. With more snow on the way, very large avalanches remain a concern with potential to run all the way to valley bottom
Persistent weak layers that were touchy during the recent storm may continue to be released by large additional loads, or by moist or wet avalanches in motion.
="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 cm of moist snow. This layer will remain a concern as it adjusts to the warm temperatures.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Snow, rain, wind and warm temperatures are stressing a layer of weak surface hoar siting on a crust buried 40 to 80 cm down.</span><span class="s_AA239
="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 cm of snow.  This layer may continue to produce avalanches as it adjusts to the warm temperatures.</span><span class="s_3FE45
Continued warming from high freezing levels and strong solar radiation may result in natural avalanches releasing on the buried persistent weak layer on Southerly aspects. Avalanches may be human triggered on all aspects.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 40 to 70 of moist snow has been responsible for most of the recent avalanche activity.</span><span class="s_AA239
="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 of moist snow has been responsible for most of the recent avalanche activity.
="s_3FE45715">At upper elevations a layer of surface hoar on a crust buried 40 to 80 cm down may still be capable of producing avalanches especially in wind loaded features.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 40 to 80 of moist snow has been responsible for most of the recent avalanche activity.</span><span class="s_AA239
Storm loading has added reactivity and destructive potential to persistent weak crystals which formed in early January. Remain wary of any steep slopes that did not slide during the last avalanche cycle.
Recent avalanche activity indicates a crust/surface hoar combo, which formed in January, should remain on our radar. Due to the persistent nature of these crystals, I would expect ongoing reactivity with the potential for large avalanches.
="s_3FE45715">In areas where the snowpack is not capped by a supportive crust a layer of surface hoar buried 40 to 70 cm down may still be capable of producing large avalanches.
Continued warming from high freezing levels and strong solar radiation may result in natural avalanches releasing on the buried persistent weak layer on Southerly aspects. Avalanches may be human triggered on all aspects.
The persistent weak layer that was buried in mid-January continues to be the sliding layer for natural and remotely triggered avalanches.
="s_3FE45715">In areas where the snow pack is not capped by a supportive crust a layer of surface hoar buried 40 to 70 cm down may still be capable of producing large avalanches in wind loaded features.
="s_3FE45715">At upper elevations a layer of surface hoar sitting on a crust buried 40 to 80 cm down may still be capable of producing large avalanches especially in wind loaded features.
We're heading into unknown territory here. Recent cooling has made persistent slabs less likely, but given the scale of previous avalanche activity on a layer from mid-January, I don't trust it yet. I strongly recommend factoring this problem in.
Although recent cooling has made persistent slabs less likely, given the reactivity of a weak layer buried around 80 cm during the previous storm, I would strongly recommend factoring this problem in to your decision making.
Facets overlying the 1213cr are continuing torproduce moderate sheers.
Strong solar radiation may result in natural avalanches releasing on the buried persistent weak layer on Southerly aspects. Avalanches may be human triggered on all aspects.
The persistent weak layer that was buried in mid-January continues to be the sliding layer for remotely triggered avalanches.
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</style><p class="p_CC664AAA"><span class="s_1681A555">A layer of surface hoar buried in the upper snowpack remains a concern, especially at treeline and higher. A large trigger, like an avalanche in motion or cornice fall, could trigger a deeper persistent weakness.</span><span class="s_AA239
The mid-January persistent weak layer may become reactive again with the increased load from the forecast snow and wind.
1681A555">A layer of surface hoar buried in the upper snowpack remains a concern. Large triggers such as cornice fall could also step down to a deeper buried weak layer.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">A layer of surface hoar buried in the upper snowpack remains a concern, especially above about 1900 m. An avalanche in motion or cornice fall could also trigger a second, deeper persistent weakness.
Although recent cooling has made persistent slabs less likely, given the reactivity of a weak layer buried around 80 cm during the previous storm, I would strongly recommend factoring this problem in to your decision making.
The crust was found down 25cm's today. Facets above and below the crust indicate the potential for triggering. Tests had mixed results. Look at steep convex areas carefully.
A layer of surface hoar buried in the upper snowpack remains a concern, especially at high elevations. An avalanche in motion or cornice fall could also trigger a second, deeper persistent weakness.
Persistent slab avalanches have become less likely since the surface crust has formed. The mid-January weak layer may be triggered on solar aspects when surface is moist or wet, or in areas where the surface crust is not supportive.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_69982360">A layer of surface hoar buried in the upper snowpack remains a concern, especially at treeline and higher. A large trigger, like an avalanche in motion or cornice fall, could also trigger a deeper persistent weakness.
="s_69982360">A layer of surface hoar buried in the upper snowpack remains a concern, especially at treeline and higher. A large trigger, like an avalanche in motion or cornice fall, could also trigger a second, deeper persistent weakness.
The persistent weak layer that was buried in mid-January has been the sliding layer for recent remotely triggered avalanches.
Although less likely to trigger, persistent weak layers are still capable of producing large and destructive avalanches in isolated terrain. Possible triggers include a cornice fall or intense solar radiation.
Persistent weak layers, buried in the middle of January, may &quot;wake-up&quot; in response to recent storm loading. These layers are buried up to a metre below the surface, and can surprise with nasty consequences.
Upper treeline is the likely place to find this problem. Very steep (40 degree+) terrain with variable coverage should be treated with caution.
="s_3FE45715">A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above. A large trigger, like an avalanche in motion or cornice collapse, could trigger a deeper persistent weakness.
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</style><p class="p_CC664AAA"><span class="s_DDF6C5E8">A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above.  A large trigger, like an avalanche in motion or cornice collapse, could also trigger a deeper persistent weakness.</span><span class="s_3FE45715">
A layer of surface hoar buried in the upper snowpack remains a concern, especially at treeline and higher. A large trigger, like an avalanche in motion or cornice fall, could also trigger a deeper persistent weakness.
="s_DDF6C5E8">A layer of surface hoar buried in the upper snowpack remains a concern.
In the mid snowpack there are a few crusts which may be reactive to the weight of a skier. Although less likely to trigger, these persistent weak layers may &quot;wake-up&quot; in response to continued storm loading.
In the mid snowpack there are a few crusts which may be reactive to the weight of a skier in steep high elevation terrain. Although less likely to trigger, these destructive weak layers may &quot;wake-up&quot; with continued heavy storm loading.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and below treeline where the snowpack structure is primed for human triggering.
No activity on this layer in some time but we exepect in the wrong kind of terrain feature it could be an issue.  ie, steep and unsupported at treeline.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A layer of surface hoar</span><span class="s_3FE45715"> buried in the upper meter of the snowpack has been the failure layer for recent natural and human triggered avalanches.
In the mid snowpack there are a few crusts which may be reactive with the potential for large avalanches. Although less likely to trigger, these persistent weak layers may &quot;wake-up&quot; in response to a large trigger such as a cornice fall.
="s_3FE45715">A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above. A large trigger, like an avalanche in motion could trigger deeper persistent weaknesses.
In the mid snowpack there are a few crusts which may be reactive with the potential for large avalanches. Although less likely to trigger, these persistent weak layers may &quot;wake-up&quot; in response to a large trigger such as a cornice fall.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above. A large trigger, like an avalanche in motion could trigger deeper persistent weaknesses.
Triggering a persistent slab is less likely since the surface crust formed and temperatures dropped. However there may still be potential to trigger a weak layer from a thin spot at upper elevations.
="s_3FE45715">A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above. A large trigger, like an avalanche in motion could trigger deeper persistent weaknesses.
In the mid snowpack there are a few crusts which may be reactive with the potential for large avalanches. Although less likely to trigger, these persistent weak layers may &quot;wake-up&quot; in response to a large trigger such as a cornice fall.
While unlikely, you may still be able to initiate an avalanche on the mid-December crust/SH interface in spots where the snowpack goes from thick to thin.
A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above. A large trigger, like an avalanche in motion could trigger a deeper persistent weakness.
The mid-January weak layer may continue to be triggered in some areas where the buried crust and surface hoar combination still exists. This may be isolated to terrain that remained coll during the warm up last week.
In the mid snowpack there are a few crusts which may be reactive with the potential for large avalanches. Although less likely to trigger, these persistent weak layers may &quot;wake-up&quot; in response to a large trigger such as a cornice fall.
A layer of surface hoar buried in the upper meter of the snowpack remains a concern, especially at treeline and above. A large trigger, like an avalanche in motion could trigger deeper persistent weaknesses.
A layer of surface hoar buried in the upper meter of the snowpack has been the failure layer for recent natural and human triggered avalanches. Storm slab avalanches in motion may step down to the buried weak layer.
More of a concern in very steep terrain with a shallow snowpack.
="s_3FE45715">The late-Jan crust is down 60-80cm and may still be reactive in some areas. In the mid-pack there are older persistent weak layers but these have generally stabilized. Extra caution is required in thinner snowpack areas, especially the north.
The late-Jan crust is down 100-130cm and may still be reactive in some areas. In the mid-pack there are older persistent weak layers but these have generally stabilized. Extra caution is required in thinner snowpack areas, especially the north.
A layer of surface hoar buried in the upper meter of the snowpack has been the failure layer for recent natural and human triggered avalanches. Storm slab avalanches in motion may step down to the buried weak layer.
The mid-January weak layer may continue to be triggered in some areas where the buried crust and surface hoar combination still exists. This may be isolated to terrain that remained cold during the warm up last week.
The mid-January weak layer may continue to be triggered in some areas where the buried crust and surface hoar combination still exists. This may be isolated to terrain that remained coll during the warm up last week.
The mid-January weak layer may continue to be triggered in some areas where the buried crust and surface hoar combination still exists. This may be isolated to terrain that remained cold during the warm up last week.
While unlikely, you may still be able to initiate an avalanche on the mid-December crust/SH interface in isolated spots where the snowpack goes from thick to thin, especially where the crust under the new snow isn't supportive.
While unlikely, you may still be able to initiate an avalanche on the mid-December crust/SH interface in isolated spots where the snowpack goes from thick to thin, especially where the crust under the new snow isn't supportive.
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</style><p class="p_CC664AAA"><span class="s_1681A555">Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_1681A555">Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_1681A555">Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.</span><span class="s_AA239A9B">
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
This storm system should be a good test for the more deeply buried weak layers.&nbsp; With up to a meter of new snow expected in the alpine by Saturday afternoon, I wouldn't be surprised to see storm slabs step down to one of the persistent weaknesses.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late-Jan crust is down 60-80cm and may still be reactive in some areas. In the mid-pack there are older persistent weak layers but these have generally stabilized. Extra caution is required in thinner snowpack areas, especially the north.</span><span class="s_AA239
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
This storm system should be a good test for the more deeply buried weak layers. With up to a meter of new snow expected in the alpine by Saturday afternoon, I wouldn't be surprised to see storm slabs step down to one of the persistent weaknesses.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late-Jan crust is down 60-80cm and may still be reactive in some areas. In the mid-pack there are older persistent weak layers but these have generally stabilized. Extra caution is required in thinner snowpack areas, especially the north.</span><span class="s_AA239
The significant load and rain deteriorating the late January crust could lead to avalanches stepping down to the deeper weak layers.
Weak facetted crystal above and below the crusts both in Jan (down 30-40cm) and Dec (down 40-50cm) are becomming more triggerable with the new snow loads.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
Buried persistent weak layers may be over-loaded by the forecast new storm snow resulting in human triggering, or storm slab avalanches in motion stepping down to the deeply buried weak layers.
There's a lot of uncertainty surrounding the deeply buried weak layers in the snowpack.  This weekend I would make decisions based on the assumption that every slope above treeline has the potential to produce a very large and destructive avalanche.
Buried persistent weak layers may be over-loaded by the new storm snow. Any avalanche on these deeper layers would be large and destructive.
Buried persistent weak layers have become reactive with heavy storm loading resulting in very large avalanches up to 1.5m deep.
="s_3FE45715">Buried persistent weak layers have become reactive with heavy storm loading resulting in very large avalanches up to 1.5m deep.
="s_3FE45715">Buried persistent weak layers have become reactive with heavy storm loading resulting in large avalanches.
Buried persistent weak layers may be over-loaded by the new storm loading and become reactive. There are multiple weak layers in the mid-pack. A dormant deep persistent weakness near the ground has the potential to wake-up with the additional load.
No observations mean there's a ton of uncertainty concerning the deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline has the potential to produce a very large and destructive avalanche.
Buried persistent weak layers have become reactive with heavy storm loading resulting in very large avalanches up to 1.5m deep.
Buried persistent weak layers in the mid snowpack may be over-loaded by the new storm snow. Any avalanche on these deeper layers would be large and destructive.
Buried persistent weak layers have become reactive with heavy storm loading resulting in very large avalanches up to 1.5m deep.
Buried persistent weak layers have become reactive with heavy storm loading resulting in large avalanches.
Limited observations mean there's a ton of uncertainty concerning the deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline has the potential to produce a very large and destructive avalanche.
Limited observations mean there's significant uncertainty concerning the deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline has the potential to produce a very large and destructive avalanche.
Buried persistent weak layers in the mid-pack have become reactive with heavy storm loading resulting in large avalanches. A dormant deep persistent weakness near the ground also has the potential to wake-up with the additional load.
="s_3FE45715">The mid-Jan buried persistent weak layer has become very reactive with recent storm loading and may remain sensitive for several more days. Smaller avalanches or cornice falls may step-down to this layer resulting in very large avalanches.
="s_3FE45715">The mid-Jan buried persistent weak layer has become reactive with recent storm loading and may remain sensitive for several more days. Smaller avalanches or cornice falls may step-down to this layer resulting in very large avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The mid-Jan buried persistent weak layer has become very reactive with recent storm loading and may remain sensitive for several more days.  Smaller avalanches or cornice falls may step-down to this layer resulting in very large avalanches.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Buried persistent weak layers have become very reactive with recent storm loading and may remain reactive to human-triggering for several more days.
Buried persistent weak layers in the mid snowpack have been over-loaded by the new storm snow. Very large and destructive avalanches have occurred under light loads, and conservative terrain selection remains critical. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Limited observations mean there's a ton of uncertainty concerning the deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline has the potential to produce a very large and destructive avalanche.
Limited observations mean there's significant uncertainty concerning the deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline has the potential to produce a very large and destructive avalanche.
The mid-Jan buried persistent weak layer has become reactive with recent storm loading and may remain sensitive for several more days. Smaller avalanches or cornice falls may step-down to this layer resulting in very large avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Buried persistent weak layers have become very reactive with recent storm loading and may remain reactive to human-triggering for several more days. </span><span class="s_3FE45715">Smaller avalanches or cornice falls may step-down to these layer resulting in very large avalanches.
="s_3FE45715">The mid-Jan buried persistent weak layer has become reactive with recent storm loading and may remain sensitive for several more days. Smaller avalanches or cornice falls may step-down to this layer resulting in very large avalanches.
="s_3FE45715">The mid-Jan buried persistent weak layer has become reactive with recent storm loading and may remain sensitive for several more days. Smaller avalanches or cornice falls may step-down to this layer resulting in very large avalanches.
Several weak layers are lucking in the snowpack and slopes at and above treeline still may have the potential to produce a very large and destructive avalanches. Smaller surface avalanches may step down to these deeper instabilities.
="s_3FE45715">Several weak layers are lucking in the snowpack and slopes at and above treeline still may have the potential to produce a very large and destructive avalanches. Smaller surface avalanches may step down to these deeper instabilities.
Buried persistent weak layers in the mid snowpack have been over-loaded by the new storm snow. Very large and destructive avalanches have occurred under light loads, and conservative terrain selection remains critical.
The late-Jan and mid-Jan layers have both been reactive recently. Human-triggering is still possible and both these layers remain a real concern, especially in the alpine. A cornice fall or small avalanche could easily step-down to these layers.
="s_3FE45715">The late-Jan and mid-Jan layers have both been reactive recently. Human-triggering is still possible and both these layers remain a real concern, especially in the alpine. A cornice fall or small avalanche could easily step-down to these layers.
="s_3FE45715">The late-Jan and mid-Jan layers have both been reactive recently. Human-triggering is still possible and both these layers remain a real concern, especially in the alpine. A cornice fall or small avalanche could easily step-down to these layers.
A deeply buried week layer which formed in December should still be treated with suspicion. Although not much is known about the current reactivity of this potentially destructive layer, I'd use extra caution in steep, unsupported alpine terrain.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late-Jan and mid-Jan layers have both been reactive recently.  Human-triggering is still possible and both these layers remain a real concern, especially in the alpine.  A cornice fall or small avalanche could easily step-down to these layers.</span><span class="s_AA239
="s_3FE45715">Warming temperatures, snow, and/or rain will stress persistent weak layers lucking in the snowpack at and above treeline. Recent avalanche reports suggest that these layers may still have the potential to produce large and destructive avalanches.
="s_3FE45715">Warming temperatures, snow, and/or rain will stress persistent weak layers lurking in the snowpack at and above treeline. Avalanche control on Monday suggested that these layers still have the potential to produce large and destructive avalanches.
A couple of notable persistent weak layers, buried 60-120 cm deep, remain a concern for human triggering, especially in the alpine.
Large persistent slab avalanches have been releasing this week. There is still a real possibility of triggering one of these beasts with the weight of a person or snowmobile. A cornice fall or wind slab could also trigger a persistent slab.
Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
A crust buried in late January can act as a sliding surface for large avalanches. A cornice fall or small avalanche could also step down to a more deeply buried persistent weak layer.
A crust buried in the upper metre of the snowpack can act as a sliding surface for large avalanches. In specific areas, a deeper weak layer may be triggered by a large trigger such as cornice fall.
="s_3FE45715">Several weak layers are lucking in the snowpack and slopes at and above treeline may have the potential to produce very large and destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Warming temperatures, snow, and/or rain will stress persistent weak layers lurking in the snowpack at and above treeline.  These layers still may have the potential to produce very large and destructive avalanches.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_71516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239
516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_71516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239
516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
I'm unsure as to how the recent storm affected the deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline still has the potential to produce a very large and destructive avalanche.
There is still quite a bit of uncertainty about the reactivity of deeper problem layers in the snowpack. I would manage this by assuming that every slope above treeline still has the potential to produce a very large and destructive avalanche.
Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
A buried crust formed in late January has acted as a sliding surface for large avalanches. A cornice fall or small avalanche could also step down to a more deeply buried persistent weak layer.
516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
The persistent weak layer of buried crust and surface hoar from the beginning of February should become less likely to trigger as cooler temperatures provide overnight freezing down to valley bottoms. Watch for warming from strong solar radiation.
: Normal;font-weight: bold;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_71516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_71516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239
: Normal;font-weight: bold;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_71516F31">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239A9B">
Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239A9B">
Although unlikely, these highly destructive avalanches remain possible with heavy impacts (e.g. cornice falls and surface avalanche stepping down) in the right spot (e.g. thin rocky areas). Daytime warming will also increase sensitivity.
Although unlikely, these highly destructive avalanches remain possible with heavy impacts (e.g. cornice falls and surface avalanche stepping down) in the right spot (e.g. thin rocky areas). Daytime warming will also increase sensitivity.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs are most likely to be triggered from thin snowpack areas, or with large triggers like cornice fall or an avalanche stepping down.</span><span class="s_AA239A9B">
The previously formed wind slabs are still lurking under the latest snow.&nbsp; Keep an eye out for this in the alpine and exposed treeline elevations on steeper features.
The post Jan 31st slabs have been reclassified as a persistent problem. Steep areas below ridge crests are a likely place to encounter this issue. The slabs are generally thick, and hard. Its unlikely to hit one, but it will be big if it happens.
Steep, convex terrain near ridge crests still pose a concern. Investigate bigger terrain carefully before committing.
The cooler temps are helping to lock these slabs in place. We are becoming more comfortable with them, but still think there is a chance of setting them off in steep(40 degree +), crossloaded terrain.
The cold has really helped this layer lock in place. It is still worth some thought as to what the consequences of your given terrain may be if it were to avalanche. Steep, unsupported terrain demands some respect still.
Warm temperatures, strong sun, and periods of rain have weakened the upper snowpack. Dormant persistent weak layers may wake-up and become reactive to human-triggering.
="s_3FE45715">Warm temperatures, strong sun, and periods of rain have weakened the upper snowpack. Dormant persistent weak layers may wake-up and become reactive to human-triggering.
="s_3FE45715">Warm temperatures, strong sun, and periods of rain have weakened the upper snowpack. Dormant persistent weak layers may wake-up and become reactive to human-triggering.
="s_3FE45715">Warm temperatures, strong sun, and periods of rain have weakened the upper snowpack. Dormant persistent weak layers may wake-up and become reactive to human-triggering.</span><span class="s_3FE45
="s_3FE45715">Where enough snow overlies the mid-Feb crust/facet layer, reactive slab avalanches are possible. There is also a concern for avalanches to step-down to deeper weak layers or the ground due to the unseasonably warm temperatures.
="s_3FE45715">Where enough snow overlies the mid-Feb crust/facet layer, reactive slab avalanches are possible. There is also a concern for avalanches to step-down to deeper weak layers due to the unseasonably warm temperatures.
Where enough snow overlies the mid-Feb crust/facet layer, reactive slab avalanches are possible. There is also a concern for avalanches to step-down to deeper weak layers due to the unseasonably warm temperatures.
="s_3FE45715">Where enough snow overlies the mid-Feb crust/facet layer, reactive slab avalanches are possible. There is also a concern for avalanches to step-down to deeper weak layers due to the unseasonably warm temperatures.
="s_3FE45715">New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
="s_3FE45715">New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.&nbsp;
="s_17AE1194">New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
="s_17AE1194">New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
="s_17AE1194">New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
New loading from rain or snow coupled with the persistent warm conditions may overload buried persistent weak layers resulting in very large avalanches.
People have been remote-triggering persistent slabs. The buried crust/facet layer could produce surprisingly large avalanches.
A persistent weak interface buried mid- February 30-60 cm below the surface is responsible for numerous large slab avalanches. Remote triggering from a distance is possible, and conservative terrain selection is recommended.
A persistent weak interface buried mid- February 30-60 cm below the surface is responsible for numerous large slab avalanches. Remote triggering from a distance is possible, and conservative terrain selection is recommended.
This layer has been with us all season and it will likely be with us all season.&nbsp; Thin weak areas are the locations it may triggerable from.
In recent days, people have remotely triggered large persistent slab avalanches. The buried crust/facet layer seems variably reactive, and could surprise with nasty consequences.
Reports of remote triggering from distances of up to 100m indicates that persistent slab avalanches should be on our radar. The buried crust/facet layer may be with us for a while, and could produce surprisingly large avalanches.
A persistent weak interface buried mid- February 30-60 cm below the surface is responsible for numerous large slab avalanches. Remote triggering from a distance is possible, and conservative terrain selection is recommended.
A persistent weak interface buried mid- February 30-60 cm below the surface is responsible for numerous large slab avalanches. Remote triggering from a distance is possible, and conservative terrain selection is recommended.
In recent days, people have remotely triggered large persistent slab avalanches. New snow overloading this weak layer could cause surprisingly large avalanches.
Reports of remote triggering from distances of up to 100 m indicate that persistent slab avalanches should be high on our radar. The buried crust/facet layer could produce surprisingly large avalanches now that it is getting overloaded with snow.
A persistent weak interface buried mid- February 30-60 cm below the surface is responsible for numerous large slab avalanches.
1681A555">A persistent weak interface buried mid- February 30-70 cm below the surface is responsible for recent, numerous large slab avalanches.
A persistent weak interface buried mid- February 30-70 cm below the surface is responsible for recent, numerous large slab avalanches.
A persistent weak interface buried mid- February 30-60 cm below the surface is responsible for numerous large slab avalanches.
In recent days, people have remotely triggered large persistent slab avalanches. The spotty nature of this interface makes it difficult to manage. New snow overloading this weak layer could cause surprisingly large avalanches.
In recent days, people have remotely triggered large persistent slab avalanches. The spotty nature of this interface makes it difficult to manage. New snow overloading this weak layer could cause surprisingly large avalanches.
In the past week, people have remotely triggered large persistent slab avalanches. The spotty nature of this interface makes it difficult to manage. New snow has now overloaded this weak layer with the potential for surprisingly large avalanches.
In the past week, people have remotely triggered large persistent slab avalanches. The spotty nature of this interface makes it difficult to manage. New snow has now overloaded this weak layer with the potential for surprisingly large avalanches.
="s_3FE45715">The persistent weak layer buried mid-February is down up to 1m below the surface and has produced numerous large avalanches recently. Storm slab avalanches may step down to this layer.
The persistent weak layer buried mid-February is down up to 1m below the surface and has produced numerous large avalanches recently. Storm slab avalanches may step down to this layer.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layer buried mid-February is down up to 1m below the surface and has produced many large avalanches recently. Storm slab avalanches could easily step down to this layer.</span><span class="s_AA239
The persistent weak layer buried mid-February is down up to 1m below the surface and has produced many large avalanches recently. Storm slab avalanches could easily step down to this layer.
Easy snowpack test results and large natural avalanches indicate that a recently buried crust/facet layer deserves our respect. Touchy conditions are expected to persist for the foreseeable future, especially in the north of the region.
On some slopes, persistent weak layers are unlikely to be a problem. On isolated slopes, they may surprise with disastrous consequences. Minimize your risk by avoiding steep, high consequence slopes.
The persistent weak layer buried mid-February is down up to 1m below the surface and has produced many large avalanches recently. Storm slab avalanches could easily step down to this layer and remote triggering is possible.
The persistent weak layer buried mid-February is down up to 1m below the surface and has produced many large avalanches recently. Storm slab avalanches could easily step down to this layer.
="s_3FE45715">The problem is such that some slopes are unlikely to be a problem, while others could produce large and destructive avalanches with potentially disastrous consequences. Additional snowfall Monday night may initiate a new round of large avalanches.
Easy failures in snowpack tests and large natural avalanches show that a recently buried crust/facet layer commands respect. Touchy conditions are expected to persist for the foreseeable future, especially in the north of the region.
A persistent weak layer is buried anywhere from 40-80 cm below the surface and has produced numerous large avalanches recently. Storm slab avalanches could easily step down to this layer and remote triggering is possible.
It's nearly impossible to say which pieces of terrain are capable of producing very large avalanches and which are not.&nbsp; Warming temps Wednesday are expected to increase the reactivity of this slab making it more tricky to manage.
Easy failures in snowpack tests and large natural avalanches show that a recently buried crust/facet layer commands respect. Warming temperatures will likely increase the reactivity of this slab Wednesday.
1681A555">The persistent weak layer buried mid-February is down up to 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches could easily step down to this layer.
The persistent weak layer buried mid-February is down up to 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches could easily step down to this layer.
The persistent weak layer buried mid-February is down up to 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches could easily step down to this layer.
The persistent weak layer buried mid-February is down up to 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches could easily step down to this layer.
A persistent weak layer is buried anywhere from 40-80 cm below the surface and has produced numerous large avalanches recently. Storm slab avalanches could easily step down to this layer and remote triggering is possible.
It's difficult to say which pieces of terrain are capable of producing very large avalanches and which are not. Riders continue to remote trigger very large avalanches, even when riding in conservative terrain.
Sudden failures in snowpack tests and recent large avalanches show that the mid-March persistent weak layer commands respect. Warming temperatures will likely increase the reactivity of this slab Friday.
A persistent weak layer is buried anywhere from 40-80 cm below the surface and has produced numerous large avalanches recently. Storm slab avalanches could easily step down to this layer and remote triggering is possible.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A complex snowpack exists with two reactive, persistent weak layers buried in the upper metre of the snowpack. These layers have been responsible for many large and destructive avalanches. Smaller avalanches could easily step down to this layer.
High variability and severe consequences makes the mid-March persistent weakness very untrustworthy. Riders continue to remote trigger very large avalanches, even when riding in conservative terrain.
The persistent weak layer buried mid-February is down up to 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches could easily step down to this layer.
High variability and severe consequences makes the mid-March persistent weakness very untrustworthy. Riders continue to remote trigger very large avalanches, even when riding in conservative terrain.
High variability and severe consequences makes the mid-March persistent weakness very untrustworthy. Riders continue to remote trigger very large avalanches, even in conservative terrain.
High variability and severe consequences makes the mid-March persistent weakness very untrustworthy. Riders continue to remote trigger very large avalanches, even in conservative terrain.
A persistent weak layer is buried anywhere from 40-80 cm below the surface and has produced numerous large avalanches recently. Storm slab avalanches could easily step down to this layer and remote triggering is possible.
The persistent weak layer buried mid-February is down up to 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches and cornice failures could easily trigger slabs that step down to this layer.
A complex snowpack exists with two reactive, persistent weak layers buried in the upper metre of the snowpack. These layers can be triggered by light loads like people, and have been responsible for many large and destructive avalanches.
Large and destructive persistent slabs can be triggered by the weight of a person or sled. Stick to conservative terrain.
Large and destructive persistent slabs can be triggered by the weight of a person or sled.&nbsp; Stick to conservative terrain.
There is significant danger that the touchy persistent slab buried an average of a metre below the surface will become overloaded by new rain and snow. The depth of this layer could result in some particularly large and destructive avalanches.
There is significant danger that the touchy persistent slab buried an average of 80 cm below the surface will become overloaded by new rain and snow. The depth of this layer could result in some large and destructive avalanches.
The persistent weak layer buried mid-February is 80-120 cm below the surface and has been the culprit of many large avalanches recently. Smaller avalanches and cornice failures could also trigger slabs that step down to this layer.
Warming has added a lot of strength to the snowpack, but it may still be possible for riders to trigger a slab failing on the mid-March crust in the alpine. Strong W/SW winds may increase the reactivity of this slab at upper elevations too.
Continued warming and solar radiation could make deeper persistent weaknesses more susceptible to triggering, especially sun-exposed and thinly snow-covered slopes.
Persistent slabs are touchy and may be triggered naturally, or with the weight of a sledder or skier.
Large and destructive persistent slabs can be triggered by the weight of a person or sled. Stick to conservative terrain.
There is significant danger that a touchy persistent weak layer buried an average of a metre below the surface will become overloaded by new snow and rain. Because it is deeply buried, particularly large and destructive avalanches are expected.
There is a possibility that a touchy persistent weak layer buried an average of 80 cm below the surface could become overloaded by new rain and snow. Since this layer is now quite deep, this could result in some large and destructive avalanches.
Large and destructive persistent slabs can be triggered by the weight of a person or sled. Stick to conservative terrain.
="s_3FE45715">Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations.
A deeply buried weak layer continues to haunt the region, especially in the north where large and destructive avalanches will remain a concern for some time. Conservative terrain selection remains critical.
="s_3FE45715">Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations,
Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations.
A deeply buried persistent weak layer continues to haunt the region with the potential for very large and destructive avalanches. Conservative terrain selection remains critical.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible.  Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers.  These slabs may be wet at lower elevations.</span><span class="s_AA239
Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations.
Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations,
Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations.
Buried persistent weak layers remain reactive to human-triggering and very large avalanches are possible. Smaller avalanches in motion or a cornice failure could easily trigger one of these deeper layers. These slabs may be wet at lower elevations.
There's some uncertainty as to how the deeply buried weak layers have responded to recent storms. A cautious approach is still required as avalanches failing at this interface may not be survivable. Conservative terrain selection is still critical.
There's some uncertainty as to how the deeply buried weak layers have responded to recent storms. A cautious approach is still required as avalanches failing at this interface may not be survivable.
A weak surface hoar layer has recently produced large remotely triggered avalanches, and is now buried by up to 75cm of snow. We're still getting a handle on the distribution of this layer. Until we do, I'd assume it's in most parts of the region.
There's some uncertainty as to how the deeply buried weak layers have responded to recent storms. A cautious approach is still required as avalanches failing at this interface may not be survivable.
There's some uncertainty as to how the deeply buried weak layers have responded to recent storms. A cautious approach is still required as avalanches failing at this interface may not be survivable.
Buried persistent weak layers may still be reactive to human-triggering and very large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
A weak surface hoar layer has recently produced large remotely triggered avalanches, and is now buried by up to 75cm of snow. We're still getting a handle on the distribution of this layer. Until we do, I'd assume it's in most parts of the region.
="s_3FE45715">Buried persistent weak layers may still be reactive to human-triggering and very large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Buried persistent weak layers may still be reactive to human-triggering and very large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.</span><span class="s_AA239
="s_3FE45715">Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
A cautious approach is still required because, although it would likely take just the right trigger in just the right spot, avalanches failing at this interface may not be survivable.
: Normal;font-weight: bold;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_71516F31">Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_71516F31">Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.</span><span class="s_AA239
Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
A cautious approach is still required because, although it would likely take just the right trigger in just the right spot, avalanches failing at this interface may not be survivable.
Remote triggering and widespread propagations makes surface hoar buried last week particularly tricky to manage. Uncertain distribution across the region requires a cautious approach until you are certain that buried surface hoar isn't lurking.
: Normal;font-weight: bold;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_71516F31">Buried persistent weak layers may still be reactive to human-triggering. Most likely triggers include a person or machine on a thin snowpack spot, or a cornice fall.</span><span class="s_AA239
: Normal;font-weight: bold;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_71516F31">Buried persistent weak layers may still be reactive to human-triggering. Most likely triggers include a person or machine on a thin snowpack spot, or a cornice fall.
Buried persistent weak layers may still be reactive to human-triggering. Most likely triggers include a person or machine on a thin snowpack spot, or a cornice fall.
516F31">Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
Low&nbsp; probability, high consequence&nbsp; conditions exist these days.&nbsp; Hitting the &quot;trigger&quot; on a big slope could produce a very large destructive avalanche.
A facet-crust combination from early March is now buried between 50 to 100 cm down. This persistent weak layer is the prime concern right now.&nbsp; Recent storm snow has been redistributed onto lee slopes and may present a hazard as wind slabs.
With recent storm loading, the March 25th surface hoar/facets combo is now buried 50 to 70 cm from the surface and requires careful consideration.
516F31">Buried persistent weak layers may still be reactive to human-triggering. Most likely triggers include a person or machine on a thin snowpack spot, or a cornice fall.
Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
: Normal;font-weight: bold;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_71516F31">Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.</span><span class="s_AA239
No recent reports of activity on this layer. However, it's still there, and should be regarded as potential for large avalanches.
This persistent weak layer is still of concern and is capable of producing large destructive avalanches.
Recent precipitation and wind are strengthening this layer building a stiff slab over the March 25 weakness. The slab thickness thins as the elevation decreases to a crust around 1300m.
The dense slab on this layer remains a concern.  A small avalanche or a cornice failure might trigger this weakness and produce a large, destructive avalanche
The March 25th layer is now buried up to 40 cm down in some areas and still has the ability to produce avalanches that propagate over wide areas.
="s_3FE45715">Buried persistent weak layers may still be reactive to human-triggering. Most likely triggers include a person or machine on a thin snowpack spot, or a cornice fall.
This slab is sitting on a combination of crusts, facets and surface hoar.&nbsp; If triggered it could produce a very large destructive avalanche
Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Buried persistent weak layers may still be reactive to human-triggering and large avalanches remain possible. Smaller avalanches in motion or a cornice failure could step down to one of these deeper layers.</span><span class="s_AA239
No  recent  activity has been reported on this slab/over weak layer, but it's still there and could be triggered by a wet loose avalanche or a wind slab avalanche
The slab above the March 25th layer is still on the radar and should be treated with caution. It might be triggered by a small wind slab, or a loose wet avalanche on a solar aspect
No recent activity has been reported on this layer, but it's still there, and could produce a large avalanche if triggered
="s_3FE45715">Human triggered persistent slab avalanches remain a concern. It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty.
Human triggered persistent slab avalanches remain a concern. It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty.
="s_3FE45715">Human triggered persistent slab avalanches remain a concern. It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty.
A couple of persistent weak layers are still present in the upper snowpack. These have not been reactive for a few days now, but intense spring sun or cornice falls could be enough to reawaken this problem.
A couple persistent weak layers are still present in the upper snowpack. These have not been reactive for a few days now, but intense spring sun or cornice falls could be enough to reawaken this problem.&nbsp;
The March 25th persistent weak layer is still on the radar and should be treated with respect. It could be triggered by a smaller wind slab or a loose wet avalanche, or by a rider in the wrong spot.
="s_3FE45715">While the likelihood of triggering a large persistent slab avalanche has gone down, the consequences of human triggering remain high. It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty.
="s_3FE45715">While the likelihood of triggering a large persistent slab avalanche has gone down, the consequences of human triggering remain high. It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty.
="s_3FE45715">While the likelihood of triggering a large persistent slab avalanche has gone down, the consequences of human triggering remain high. It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty.
A couple of persistent weak layers are still present in the upper snowpack. These have not been reactive for a few days now, but intense spring sun or cornice falls could be enough to reawaken this problem.
A couple persistent weak layers are still present in the upper snowpack. These have not been reactive for a few days now, but intense spring sun or cornice falls could be enough to reawaken this problem.&nbsp;
The March 25th persistent weak layer should be treated with respect. It could be triggered by a smaller wind slab or a loose wet avalanche, or by a rider in the wrong spot, particularly in the Northern part of the region.
A buried surface hoar layer, down around 50 cm, has been very reactive in the Ningunsaw Pass area and could be an issue in other parts of the region where we receive little info.&nbsp;
="s_3FE45715">It's tough to say which features harbor a trigger-able weakness and which don't with any amount of certainty, but cornice fall driven by warm temperatures is the most likely trigger.
There are two persistent weak layers still present in the upper snowpack. These have not been reactive for a few days now, but intense spring sun , a wind slab avalanche,&nbsp; or cornice fall could be enough to reawaken this problem.
The March 25th persistent weak layer should be treated with respect. It could be triggered by a smaller wind slab or a loose wet avalanche, or by a rider in the wrong spot, particularly in the Northern part of the region, or a shallow snow pack area.
A buried layer of surface hoar layer on crust, now down around 50 cm, has been very reactive in the Ningunsaw Pass area and could be an issue in other parts of the region where we have received little info. This weak layer should not be trusted.
There are two persistent weak layers still present in the upper snowpack. These haven't been reactive for a few days now, but intense spring sun, a wind slab or cornice failure could be enough to reawaken this problem.
There are two persistent weak layers still present in the upper snowpack. These haven't been reactive for a few days now, but intense spring sun, a wind slab or cornice failure could be enough to reawaken this problem.
This slab overlying the March 25 persistent weak layer is still on the radar with professionals in the area.
Additional loading on the March 25 combination layer may make this layer extremely touchy. Use caution in wind loaded areas and other deep deposition zones.
The weak March 25th layer is between 45 and 75cm deep. If triggered it could produce large destructive avalanches.
We haven't had much activity on this slab-over-weak layer recently, but it's worth remembering.
This slab has not been active recently, and may soon disappear as a problem, but for the time being it's worth keeping in mind.
Additional loading on the March 25 combi-layer may make this layer extremely touchy. Use caution in wind loaded areas and other deep deposition zones.
This persistent slab over the March 25th layer will most likely soon disappear as a problem with warm spring temperatures, but for now is something to be aware of.
No recent reports of activity on this layer, but we don't think it's gone yet. Something to keep in mind when contemplating riding big features.
Very little activity on this layer recently, but it's still worth considering the possibility of activating this persistent problem.&nbsp; It could produce a large and destructive avalanche if triggered.
Additional loading on this layer may bring it back to life. Use caution in wind loaded areas and other new deposition zones.
This layer has not been reported as active recently, but commercial operators are keeping a close eye on this layer, as it has the potential to produce large, destructive avalanches.
No recent activity has been reported on this layer, but it's still there, and could produce a large avalanche if triggered. Large loads like cornice fall, or hitting the sweet spot in thin-thick snowpack areas could act as a trigger.
No recent activity has been reported on this layer, but it's still there, and could produce a large avalanche if triggered. Large loads like cornice fall, or hitting the sweet spot in thin-thick snowpack areas could act as a trigger.
1681A555">Additional snow loading on the mid- March persistent weak layer could bring it back to life. Smaller storm slab avalanches may step down to this layer, initiating large and destructive avalanches.
Additional storm snow loading on the mid- March persistent weak layer could bring it back to life. Smaller storm slab avalanches may step down to this layer, initiating large, destructive avalanches.
Additional snow loading on the mid- March persistent weak layer could bring it back to life. Smaller storm slab avalanches may step down to this layer, initiating large and destructive avalanches.
Additional storm snow loading on the mid- March persistent weak layer could bring it back to life. Smaller storm slab avalanches may step down to this layer, initiating large, destructive avalanches.
No recent activity has been reported on this layer, but it's still there, and could produce a large avalanche if triggered. Large loads like cornice fall, or hitting the sweet spot in thin-thick snowpack areas could act as a trigger.
No recent activity has been reported on this layer, but it's still there, and could produce a large avalanche if triggered. Large loads like cornice fall, or hitting the sweet spot in thin-thick snowpack areas could act as a perfect trigger.
No recent activity has been reported on this layer, but it's still there, it could produce a large avalanche if triggered. Large loads like cornice fall, intense warming, or hitting the sweet spot in thin-thick snowpack areas could act as a trigger.
No recent activity has been reported on this layer, but it's still there, it could produce a large avalanche if triggered. Large loads like cornice fall, intense warming, or hitting the sweet spot in thin-thick snowpack areas could act as a trigger.
Additional storm snow loading on the mid- March persistent weak layer has brought it back to life. Smaller storm slab avalanches may step down to this layer, initiating large, destructive avalanches.
Additional snow loading on the mid- March persistent weak layer could bring it back to life. Smaller storm slab avalanches may step down to this layer, initiating large and destructive avalanches.
Surface hoar is considered a long term problem. Its exact location in the terrain is still a question. Be prepared to look for it as you travel. Using small terrain as &quot;tester&quot; slopes will help indicate the reactivity.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar and facets may maintain touchy conditions on sheltered slopes, especially in the 1700-2100m elevation range.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar and facets may maintain touchy conditions on sheltered slopes, especially in the 1700-2100m elevation range.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar may maintain touchy conditions on sheltered slopes in the northern part of the region, especially in the 1400-1800m elevation range.
Human triggered avalanches are still possible, especially on North facing terrain at, and just below tree-line due to a layer of buried surface hoar.
The new snow may sitting on a buried layer of surface hoar. Where it exists, I suspect that it is buried close to a critical depth for human triggered avalanches.
Surface hoar at treeline and below is buried down 30-40cm.&nbsp; Treeline the hoar is more spotty on only N and E aspects.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar and facets may maintain touchy conditions on sheltered slopes, especially in the 1700-2100m elevation range.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar and facets may maintain touchy conditions on sheltered slopes, especially in the 1700-2100m elevation range.
A layer of buried surface hoar can be found 70 to 110cm below the snow surface and has been most sensitive to human-triggering below treeline between 1400 and 1800m. Plan to travel below treeline as conservatively as possible.
A weak layer of surface hoar may be buried in the upper snowpack, although reports indicate it is spotty in its distribution across the region. Where it exists, I suspect that it may be at a critical depth for human triggered avalanches.
Human triggered avalanches on a layer of buried surface hoar have become less likely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep lines.
The Dec 4th persistent weak layer, buried 50 to 70cm at Treeline, remains a concern in the snowpack, as it continues to give results in snowpack stability tests. Open slopes and convex terrain are areas with potential for human-triggering.
="s_3FE45715">The weak layers buried in early-Dec and mid-Nov in the middle of the snowpack have become difficult to trigger but are still a concern in isolated areas. Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
A weakness buried early-Dec and a rain crust from mid-Nov in the mid-pack are becoming difficult to trigger but are still a concern in isolated areas.  Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
Human triggered avalanches on a layer of buried surface hoar have become less likely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep lines.
A weakness buried early-Dec and a rain crust from mid-Nov in the mid-pack are becoming difficult to trigger but are still a concern in isolated areas.  Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
A weak layer of surface hoar may be buried in the upper snowpack, although reports indicate it is spotty in its distribution across the region. Where it exists, I suspect that it may be at a critical depth for human triggered avalanches.
The Dec 4 persistent weak layer is buried up to 70cm at Treeline and potential for human-triggering remains. This layer and it's sensitivity to triggering are highly variable. Take the time to explore the snowpack as you travel through the terrain.
="s_69982360">A layer of buried surface hoar can be found at and below tree line and remains sensitive to human triggering. It is most widespread between 1400m and 1800m. A buried sun crust and facets can be found in the alpine.
A weakness buried early-Dec and a rain crust from mid-Nov in the mid-pack are becoming difficult to trigger but are still a concern in isolated areas.&nbsp; Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
A weakness buried early-Dec and a rain crust from mid-Nov in the mid-pack are becoming difficult to trigger but are still a concern in isolated areas.  Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
Human triggered avalanches on a layer of buried surface hoar have become less likely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep lines.
At the moment, a lack of a windslab is limiting any avalanche problem below treeline. When the surface condition changes, expect the surface hoar to wake up. Be sure to re-assess as you approach treeline. Watch for stiffer slabs as you travel.
A weakness buried early-Dec and a rain crust from mid-Nov in the mid-pack are becoming difficult to trigger but are still a concern in isolated areas.&nbsp; Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
A weakness buried early-Dec and a rain crust from mid-Nov in the mid-pack are becoming difficult to trigger but are still a concern in isolated areas.&nbsp; Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
Human triggered avalanches on a layer of buried surface hoar have become unlikely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep, exposed lines at treeline.
The likelihood of triggering the early December surface hoar has been decreasing due to the variable distribution of this layer. However the consequences of triggering remain high.
This problem is in wind prone areas below treeline and the upper reaches of treeline that are exposed to stronger, alpine winds. The slab density above the Dec4th layer will be a factor for avalanche potential. Stiffer slabs are more of a problem.
Loading from wind and new snow continues above the early December surface hoar. This layers distribution varies across the region.&nbsp;
Areas with buried surface hoar down around 100 cm may continue to be triggered by light loads in weak spots around exposed rocks or trees. This layer of buried surface hoar is variable across the region.
No new reports of avalanches on this weak layer. Watch for continued loading above this weak layer at and near treeline. Low likelihood, but high consequence if you trigger this buried surface hoar.
This deeply buried weak layer should be on your radar. I would be suspect of steep unsupported slopes at treeline unless I knew the December 1st surface hoar did not exist or was now well bonded.
="s_3428770D">A deeply buried weak layer of surface hoar should be on your radar. I would be suspect of steep unsupported slopes at tree-line unless I knew the layer did not exist or was now well bonded.
="s_3428770D">A couple of buried weak layer of surface hoar should be on your radar. I would be suspect of steep unsupported slopes at tree-line unless I knew the layer did not exist or was now well bonded.
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</style><p class="p_CC664AAA"><span class="s_3428770D">A couple of buried weak layer of surface hoar should be on your radar. I would be suspect of steep unsupported slopes at tree-line unless I knew the layer did not exist or was now well bonded.</span><span class="s_AA239A9B">
="s_3428770D">A couple of buried weak layer of surface hoar should be on your radar. I would be suspicious of steep unsupported slopes at tree-line unless I knew the overlying snow had no slab properties, or that the weak layer does not exist in that location.
A layer of buried surface hoar can be found between 1400m and 1800m.&nbsp; A weak crust/facet/surface hoar layer is expected at higher elevations.&nbsp; Smaller avalanches may step down to these layers.
A prominent layer of buried surface hoar can be found between 1400m and 1800m. A weak crust/facet/surface hoar layer is expected to still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
A prominent layer of buried surface hoar can be found between 1400m and 1800m. A weak crust/facet/surface hoar layer is expected to still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_CDCF4B37">A prominent layer of buried surface hoar can be found between 1400 m and 1800 m. A weak crust/facet/surface hoar layer is also expected to still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
span class="s_CDCF4B37">Buried surface hoar can be found below treeline. A weak crust/facet/surface hoar layer may also still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">A weak layer buried about 40-100 cm down remains reactive in snowpack tests in some areas. It has produced avalanches within the last week.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
A weak layer buried about 40-100 cm down remains reactive in snowpack tests in some areas. It has produced avalanches within the last week and could wake-up with the upcoming warm temperatures in the alpine.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
Several weak layers of surface hoar may be buried in the top 100 cm of the snowpack. Forecast warming of the storm slab above these weak layers is a concern for increased sensitivity to triggering and the possibility of longer fracture propagations.
Skiers have triggered four large persistent slab avalanches in the last couple of weeks. The weak layer is down 40-60 cm and exists at different elevations in different parts of the region.
Skiers have triggered four large persistent slab avalanches in the last couple of weeks. The culprit is surface hoar from early December down 40-60 cm. It exists at different elevations in parts of the region, but it is definitely out there!
This is the piece of the puzzle that won't let me drop the danger rating to LOW. The consequence of triggering a buried surface hoar weakness is high, although the likelihood of triggering seems to be getting lower.
This is the piece of the puzzle that won't let me drop the danger rating to LOW. The consequence of triggering a buried surface hoar weakness is high, although the likelihood of triggering seems to be getting lower.
Skiers have triggered four large persistent slab avalanches in the last couple of weeks. The culprit is surface hoar from early December down 40-60 cm. It exists at different elevations in various parts of the region, but it is definitely out there!
This persistent slab problem is not going to go away soon. It's a good time to dig a pit and test the reactivity of the slab before venturing into big terrain.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
Buried weak layers of surface hoar may be triggered by human activity. This problem is more likely in the area west of Kimberley, but may be found in shallow snowpack areas across the region.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
Buried weak layers of surface hoar may be triggered by human activity. This problem is more likely in the area west of Kimberley, but may be found in shallow snowpack areas across the region.
Deeply buried weak surface hoar has not resulted in any reports of deep slab avalanches since the new year. This problem has become less likely, but still needs to be considered when choosing terrain.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
No reports of slab avalanches releasing on buried weak layers. This problem is most likely at and below treeline in shallow snowpack areas.
Some natural activity is telling us that the new snow is having a hard time bonding to the layers underneath. We are seeing activity on the sun crust in steep, solar terrain. These slabs are small, however they entrain lots of snow as they flow.
We have not had any new reports of avalanches on this persistent weak layer of surface hoar that is buried down 40-60 cm. Professional operations continue to monitor this weak layer because the consequences of triggering are high.
We have not had any new reports of avalanches on this persistent weak layer of surface hoar that is buried down 40-60 cm. Professional operations continue to monitor this weak layer because the consequences of triggering are high.
A low probability/ high consequence persistent slab problem still exists. Investigate your local snowpack.
A low probability/ high consequence persistent slab problem still exits. Investigate your local snowpack.
The early January surface hoar layer has been reactive to human triggers at ALL elevations in the Kootenay Boundary.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
="s_3FE45715">Numerous backcountry travelers have been surprised in recent days by a nasty layer of surface hoar. This layer has been especially reactive below 1800 m.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Numerous backcountry travelers have been surprised in recent days by a nasty layer of surface hoar. This layer has been especially reactive below 1800 m.
Recent storm accumulations overlie a weak layer of surface hoar. Expect very touchy conditions in areas where the recent storm snow has settled into a cohesive slab.
The slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive at and below treeline.
Numerous backcountry travelers have been surprised in recent days by a touchy layer of surface hoar. This layer has been especially reactive below treeline.
Recent storm accumulations overlie a weak layer of surface hoar. Touchy conditions are expected in areas where the recent storm snow has settled into a cohesive slab.
Recent storm snow has formed a volatile slab where it overlies buried surface hoar. Avalanches may be triggered remotely and be surprisingly large.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
In some parts of the region, the slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive at and below treeline.
The slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive at and below treeline.
The slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive below treeline.
With each successive snowfall, a slab is slowly forming above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance.
Recent storm accumulations overlie a weak layer of surface hoar. Touchy conditions may exist in areas where the recent storm snow has settled into a cohesive slab.
A couple layers of weak surface hoar down 60-100cm have been reactive to human-triggering and have the potential to result in large, destructive avalanches. Smaller avalanches can easily step down to these layers.
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive at below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
A couple layers of weak surface hoar down 40-60cm have been reactive to human-triggering and have the potential to result in large, destructive avalanches. Smaller avalanches can easily step down to these layers.
Buried surface hoar, down 60-100 cm, has been particularly touchy on shady aspects near treeline. Heavy loading will likely cause widespread natural avalanche activity on this interface on Thursday.&nbsp;
Expect heavy loading from snow, rain, and wind to overload buried surface hoar, potentially creating very large avalanches. This problem has been most active on shady slopes near treeline.
With each successive snowfall, a slab is gradually forming above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance.
Some areas could see enough new snow and wind to create a slab over the buried surface hoar layer, currently 20-40 cm deep. Stay tuned to changing conditions and head out with options. 
Incoming snow on Thursday could be enough to tip the scales and produce a large avalanche cycle on the January 9th surface hoar interface. Some slides may step down to deeper weaknesses.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_A8FEC758">A volatile persistent slab has been failing with light loads. These slabs will probably get bigger and more reactive with the incoming storm. </span><span class="s_AA239
A volatile persistent slab has been failing with light triggers.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
A volatile persistent slab has been failing easily with light triggers. The size and likelihood of these should increase with the incoming storm.
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive at below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
Recent storm accumulations overlie a weak layer of surface hoar. Although this layer seems to be variably reactive, touchy conditions may exist in areas where the recent storm snow has settled into a cohesive slab.
New Persistent slabs up to 30cm thick are developing. May be deeper along ridgelines and specific lee features.
New snow, wind, and mild temperatures may have helped develop a cohesive slab, which overlies a variety of buried persistent weaknesses. It may be easy for riders to trigger this slab (where it exists), even from low angle terrain.
In many places, loading on the buried surface hoar layers has been incremental. This could make the problem trickier and will require discipline and conservative terrain choices. Other areas may have had enough load to tip off a natural cycle.
Thursday's storm may have helped clean out the mid-January surface hoar problem; however, wait a day or two to reassess the conditions before moving out into steeper terrain.&nbsp;
Heavy loading on Thursday may have tipped off a widespread avalanche cycle on the mid-January persistent weak layer; however, I would take a very conservative approach until we know the extent of this cycle and the status of this persistent weakness.
Surface hoar crystals which were buried at the beginning of January seem to be gaining strength around the Lizard Range. That said, observations have been limited throughout the region. I'd continue to test for this potentially destructive weak layer
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_A8FEC758">Numerous large persistent slabs have been triggered over the last few days. New storm loading will only accentuate this problem.
With each successive snowfall, a slab is gradually forming above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance.
A warm, wet and windy storm forecast for Thursday will likely overload persistent weaknesses which lie up to 85cm below the surface. Destructive persistent slab avalanches will be particularly touchy at elevations where precipitation falls as rain.
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</style><p class="p_CC664AAA"><span class="s_A8FEC758">Numerous large persistent slabs have been triggered over the last few days on many aspects and elevations. New storm loading will only accentuate this problem.</span><span class="s_AA239
Numerous large persistent slabs have been triggered over the last few days on many aspects and elevations. New storm loading will only accentuate this problem.
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive at below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
Persistent slabs up to 30cm thick are are widespread in Alpine lee features and in more specific areas at treeline. .
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
It's possible that heavy snow and rain may have wiped out this problem in most, or even all areas. That being said, keep your guard up until we have more post-storm information.
Buried surface hoar, now 60 cm deep on average, is primed for triggering. It's possible for light loads to trigger slabs even from relatively low angle slopes. Be extra cautious near treeline where surface hoar is more likely to be preserved.&nbsp;
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">Numerous persistent slabs have been triggered this week. Even as the weather improves, this problem could remain touchy.
A slab has formed above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance. Avalanches could be larger than expected.
This problem may still be found in places that did not see widespread avalanche activity. Be particularly caution in the northern part of the region between 1500 and 1900 m elevation. 
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">Numerous persistent slabs have been triggered this week. Even as the weather improves, this problem could remain touchy.</span><span class="s_AA239
Numerous persistent slabs have been triggered this week. Even as the weather improves, this problem could remain touchy.
The January surface hoar layer may become reactive with heavy loading from new snow and/or rain. An avalanche on this layer has the potential to be large and destructive.
A layer of surface hoar crystals buried at the beginning of January seems to be gaining strength around the Lizard Range. Observations have been limited throughout the region. Digging a pit to find and test this layer would&nbsp; be worth your time!
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive, especially at and below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
Thin areas are back on the radar as likely trigger points for this layer. It feels like this layer could sneak up on you and be a big surprise. Continually assess this layer as you travel.
Two layers of buried surface hoar could still be found down 100-150 cm deep. Triggering may still be possible with heavy loads in specific features (slopes near treeline that did not previously slide).
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
Buried surface hoar, now 60 cm deep on average, is primed for triggering. It's possible for light loads to trigger slabs even from relatively low angle slopes. Be extra cautious near treeline where surface hoar is more likely to be preserved.&nbsp;
Buried surface hoar remains primed for rider triggering, especially in the Northern part of the region where the snow line stayed below treeline during the recent storm. 
Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.&nbsp;
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.  </span><span class="s_AA239A9B">
The persistent slab has proven to be easily triggered by skiers and sleds, be aware of the possibility of triggering from a distance.
This persistent weak layer could be triggered by a wind or storm slab and result in a large, destructive avalanche
This weak layer is not going to go away anytime soon.  This is a good time to dig a pit before committing yourself to any big terrain.
Be cautious in terrain that has not had any tracks in it.&nbsp; The Jan. surface hoar is still a real concern.
A small storm or wind slab avalanche may awaken this sleeping persistent slab and trigger a large, destructive avalanche
Persistent slabs up to 30cm thick are widespread in Alpine lee and cross-loaded features and in more specific areas at treeline. These slabs could be more triggerable in shallow snowpack areas.
Two layers of buried surface hoar could still be found down 100-150 cm deep. Triggering may still be possible with heavy loads in specific features (slopes near treeline that did not previously slide).
Buried surface hoar remains primed for rider triggering, especially in the Northern part of the region where the snow line stayed below treeline during the recent storm.&nbsp;
Buried surface hoar, now 60 cm deep on average, is primed for triggering. It's possible for light loads to trigger slabs even from relatively low angle slopes. Be extra cautious near treeline where surface hoar is more likely to be preserved.&nbsp;
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.&nbsp;
Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.&nbsp;
This layer is still on the radar. An avalanche on this layer could be quite large and destructive.
The persistent weak layer might be triggered by a small or medium sized rider-triggered avalanche
A small avalanche could provide enough mass and force to trigger this deeper instability
This weak has not been reactive recently, but is still on the radar. A wind or storm slab avalanche could trigger this sleeping monster.
A small wind or storm slab avalanche might provide enough mass to trigger this deeper instability.
Persistent slabs averaging 40cm thick are widespread in the alpine on lee and cross-loaded features and in more specific areas at treeline. This layer is still a concern though faceting has made it less reactive.
Large avalanches have been failing on a buried persistent weak layer down 40-80 cm. This problem will likely remain sensitive to human triggers for the next few days.
A small wind slab avalanche could produce enough mass to trigger a deeper instability
A small slide might trigger this slab and produce a large and destructive avalanche
This weakness may be hard to trigger, but a small to mid-sized avalanche might awaken this sleeping monster, and produce a large destructive avalanche.
Large avalanches have been failing on a buried persistent weak layer down 70-100 cm. This problem will likely remain sensitive to human triggers for the next few days.
Large avalanches have been failing on a buried persistent weak layer down 40-80 cm. This problem will likely remain sensitive to human triggers for the next few days.
Large avalanches have been failing on a buried persistent weak layer down 40-60 cm. This problem will likely remain sensitive to human triggers for the next few days.
After last week's storm there are questions regarding the reactivity and distribution of buried surface hoar which lies over a metre below the surface in many areas. This uncertainty should be met with conservative terrain selection.
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
A warm, wet and windy storm is forecast to overload persistent weak layers which lie up to 100cm below the surface. Very large avalanches are expected at all elevation bands over the next few days.
Buried surface hoar remains primed for rider triggering, especially in the Northern part of the region where the snow line stayed below treeline during the recent storm.
This slab might be triggered by a small slide in the right location.
The slab above the persistent weak layer continues to be touchy, releasing naturally or with light additional loads like a single skier on adjacent terrain. Conservative terrain choices without overhead hazard are recommended at this time.
Persistent slab avalanches continue to release naturally and from small loads like skiers on adjacent terrain. The touchy slab continues to be a concern. Conservative terrain selection without overhead hazards is required at this time.
This buried surface hoar layer will be on the radar for a while longer.&nbsp; If triggered, it could produce a large destructive avalanche.
Loading from wind, snow, and rain, may increase the likelihood of triggering the slab above the buried persistent weak layer. Remote triggering continues to be a concern.
The Jan 3rd surface hoar / crust / facet combination now has a dense slab on top of it.
Rising freezing levels and increased loading from wind, snow, and rain, may increase the likelihood of triggering the buried weak layer of surface hoar.
Buried surface hoar remains primed for rider triggering in many areas including the Northern part of the region and Alison Pass. Forecast rain and wet snow will increase the likelihood of avalanches failing on this touchy weak layer.
There are still areas where last week's storm and subsequent avalanche cycle did NOT destroy buried surface crystals. In these areas, loading from rain and snow will continue to stress these layers with the potential for large, destructive avalanches
A warm, wet and windy storm is overloading persistent weak layers which lie up to 100cm below the surface. Very large avalanches are expected at all elevation bands.
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
Hard slabs now have the ability to create long propogations across a feature.&nbsp; Avoid thin areas where is may be easier to trigger this weakness.
Warming temperatures and new loading from wind, snow, and rain, may increase the likelihood of triggering a persistent slab avalanche. Remote triggering continues to be a concern and smaller avalanches have the potential step-down to a deeper layer.
Warming temperatures and new loading from wind, snow, and rain, may increase the likelihood of triggering a persistent slab avalanche. A small avalanche or a cornice failure have the potential to step-down to a deeper layer.
The slab above the persistent weak layer continues to be touchy, releasing naturally or with light additional loads like a single skier on adjacent terrain. Conservative terrain choices without overhead hazard are recommended at this time.
Natural avalanche activity may have stopped on this deeply buried weak layer. Human triggering from light loads continues to be a concern. Remote triggering and long fracture propagations are likely with this persistent weak layer.
Natural activity may have stopped on this weak layer, however human triggering continues to be likely. Remote triggering and long fracture propagations are also likely with this persistent weak layer.
Natural avalanche activity on this layer may have ended, but this layer continues to be a concern for human triggering. Remote triggering and long fracture propagations are likely with this weak layer.
Warming temperatures and new loading from wind, snow, and rain, may increase the likelihood of triggering a persistent slab avalanche. A small avalanche or a cornice failure have the potential to step-down to a deeper layer.
Buried surface hoar remains primed for rider triggering in many areas, especially in the Northern part of the region. Forecast rain and wet snow will increase the likelihood of avalanches failing on this touchy weak layer.
There are still areas where last week's storm and subsequent avalanche cycle did NOT destroy buried surface crystals. In these areas, loading from rain and snow will continue to stress these layers with the potential for large, destructive avalanches
A warm, wet and windy storm has overloaded persistent weak layers which lie more than 100cm below the surface. Even if the storm tapers-off on Thursday, I'd give the snowpack a few days to adjust to the new load before pushing into steeper terrain.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
The likelihood of triggering a buried weak layer is slowly dropping but if triggered, these layers can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering the early-Jan weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
The likelihood of triggering a buried weak layer is slowly dropping but if triggered, these layers can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
Deep and destructive persistent slab avalanches may remain a concern in high elevation terrain (especially in the north of the region) as the snowpack adjusts to recent heavy storm loading.
Deep and destructive persistent slab avalanches may remain a concern in high elevation terrain (especially in the north of the region) as the snowpack adjusts to recent heavy storm loading.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
Deep and destructive persistent slab avalanches will remain a concern in many places as the snowpack adjusts to recent heavy storm loading.
This layer is going to become a problem with any additional load. Our neighboring forecast regions have already seen some big avalanches on this layer. We are expecting the same with any additional load. It is down 40-50 in the alpine right now.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers should decrease over the next few days. However, the layer remains touchy in many areas and could surprise with disastrous consequences.
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
="s_3FE45715">In many areas, buried persistent weaknesses have been destroyed by recent wet and stormy weather. I'd still be cautious in high elevation terrain (particularly in the north of the region) as the snowpack adjusts to the weight of the new snow.
The persistent weak layer continues to give sudden planar results in snowpack tests in the north of the region. A couple of large natural avalanches in the Lizard-Flathead region suggest that the distribution may be variable.
A couple of recent large natural avalanches suggest that triggering the deeply buried weak layer continues to be likely in isolated terrain features. Avalanches failing on this layer can be large and destructive.
The persistent weak layer of surface hoar may continue to be triggered by large loads or small loads in shallow or weak areas.
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering.
The likelihood of triggering deeply buried surface hoar layers should decrease over the next few days. However, the layer remains touchy in many areas and could surprise with disastrous consequences.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
="s_3FE45715">Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab problem particularly tricky to manage.
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab problem particularly tricky to manage.
Surface hoar buried at the beginning of January remains reactive to human triggers. The potential for widespread propagation and remote triggering makes this persistent slab problem particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Persistent slabs up to 40cm thick are are widespread in Alpine lee features and in more specific areas at treeline. Touchy in shallow areas
This persistent weak layer is best described as a low probability but high consequence problem. Careful terrain selection is required where the buried surface hoar exists,
The persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continue to be a concern for human triggering, or from triggering by storm slab avalanches in motion.
This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.
The Jan 6th layer is down 40-50cm in the region.&nbsp; This interface continues to produce E to Moderate sudden planar sheers.&nbsp;
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
Some of the large avalanches reported in the past week are suspected to have failed on the deeply buried December crust. This is a low probability but high consequence problem.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continue to be a concern for human triggering, or from triggering by storm slab avalanches in motion.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.</span><span class="s_AA239
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp;  overlying slab may now be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
Some of the large avalanches reported in the past week are suspected to have failed on the deeply buried December crust. This is a low probability but high consequence problem.
A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering, or from triggering by smaller avalanches in motion.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.</span><span class="s_AA239
The likelihood of triggering buried surface hoar is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential to step-down to a deeper weak layer.
Destructive persistent weaknesses buried up to 120cm below the surface have become less likely to trigger, but still deserve respect. I'd be increasingly cautious on steep, unsupported slopes around treeline.
The likelihood of triggering the buried weak layer is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering persistent weak layers is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
These are still considered touchy due to the facets underneath. It will take some time, or a large cycle to flush this problem out.
Some large avalanches reported in the past week have failed on buried weak layers. This is a low probability but high consequence problem.
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering.
A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering, or from triggering by smaller avalanches in motion.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.</span><span class="s_AA239
The likelihood of triggering buried surface hoar and facets is slowly dropping in many areas, but touchy conditions persist in the Dogtooth Range near Golden. A few close calls serve as a warning this layer can surprise with nasty consequences.
="s_3FE45715">Persistent slabs have become more difficult to trigger; however, avalanches failing on buried surface hoar would be large and destructive. Use increased caution in steep, open terrain at treeline and below.
The likelihood of triggering persistent slabs is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering persistent slabs is slowly dropping in some areas. However, ongoing reports of remote triggering suggest deep and destructive avalanches are still a very real problem. </span><span class="s_AA239
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp; overlying slab may now be primed for human triggering.
This interface is slowly getting better. It is getting harder to trigger, but the consequences are growing if it is triggered. Thin areas are likely trigger points.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
Persistent slabs have become more difficult to trigger; however, avalanches failing on buried surface hoar would be large and destructive. Use increased caution in steep, open terrain at treeline and below.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the  overlying slab may now be primed for human triggering.
="s_69982360">The likelihood of triggering persistent slabs is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
="s_3FE45715">A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering in thin spots where the layer is closer to the surface.
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering.
The likelihood of triggering persistent slabs is slowly dropping in some areas. However, ongoing reports of remote triggering suggest deep and destructive avalanches are still a very real problem.
Touchy conditions persist, especially in the Dogtooth Range near Golden. A few close calls serve as a warning this layer can surprise with nasty consequences.
="s_3FE45715">Although no new avalanches have been reported, we are in a classic low probability but high consequence period.
This persistent weak layer is a classic low probability but high consequence problem. Dig down to see if the surface hoar exists in your area.
These are also improving, but their depth is still in the triggering range. In shallow areas, this problem is more likely to be a serious issue.
Low probability high consequence conditions persist, especially in the Dogtooth Range near Golden. A few close calls serve as a warning this layer can surprise with nasty consequences.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering persistent slabs is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.</span><span class="s_AA239
="s_7D940460">A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp; overlying slab may now be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering. New storm loading may release or step down to this layer.
="s_7D940460"> A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
Although no new avalanches have been reported, we are in a classic low probability but high consequence period.
A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering in thin spots where the layer is closer to the surface.
This persistent weak layer is a classic low probability but high consequence problem. Dig down to see if the surface hoar exists in your area.
Persistent slabs up to 80cm thick are are widespread in Alpine lee features and in more specific areas at treeline. Touchy in shallow areas
A cornice failure or a small avalanche in motion has the potential to step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
If triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential to step-down to a deeper weak layer.
Low probability high consequence avalanche conditions persist, especially in the Dogtooth Range near Golden. A few close calls (see Avalanche Activity) serve as a warning this layer has teath!
We are in a classic low probability but high consequence period.  Collapsing cornices or a small avalanche in motion could step down to a buried weak layer.
This persistent weak layer is a classic low probability but high consequence problem. Dig down to see if the surface hoar exists in your area.
Storm slabs in motion may step down to deeply buried persistent weak layers resulting in very large avalanches with wide propagations.
Buried persistent weaknesses may have been destroyed in most areas, but remain cautious in high elevation terrain (particularly in the north of the region) where this problem may be lingering. New storm loading may release or step down to this layer.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp; overlying slab may now be primed for human triggering.
The persistent slab problem demands respect, especially in the north of the region. Riders have triggered a couple of very large avalanches this week. Forecast warming could increase the sensitivity of this problem.
While becoming unlikely to be triggered, this layer can still produce large, destructive avalanches. It seems to be most prevalent at and below treeline.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.
A small avalanche has the potential to step down to a deeper weak layer. Forecast warming may also make the persistent slab easier to trigger. If triggered, this layer can still produce large, destructive avalanches.
This layer has been more reactive near Rossland.
We are in a classic low probability but high consequence period.&nbsp; Collapsing cornices or a small avalanche in motion could step down to this buried weak layer.
In the north of the region, persistent weaknesses continue to produce large and destructive avalanches. Conservative terrain selection is still critical.
We are in a classic low probability but high consequence period.&nbsp; Collapsing cornices or a small avalanche in motion could step down to a buried weak layer.
Heavy storm loading from snow or rain may trigger deeply buried persistent weak layers resulting in very large avalanches with wide propagations.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the overlying slab may now be primed for human triggering.
Avalanches on this layer are unlikely but would have disastrous consequences.
In deeper snowpack areas, surface hoar which was buried in early January is ripe for human triggering. Forecast warming will make avalanches failing at this interface more likely.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.</span><span class="s_AA239
Loading from new snow and rain will increase the likelihood of waking up destructive persistent weak layers at all elevation bands.
The persistent slab problem demands respect, especially in the north of the region. Very large avalanches are possible with human triggers, or a wind slab or cornice fall. Forecast warming is expected to increase the sensitivity of this problem.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.</span><span class="s_AA239
A deeply buried weak layer can still be triggered, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.
We are in a classic low probability but high consequence period.&nbsp; Collapsing cornices or a small avalanche in motion could step down to this buried weak layer.
Collapsing cornices or a small avalanche in motion could step down to a buried weak layer.
Persistent slabs will be extensive except for places where the wind has cleaned the snow to rocks. The depth and density of the slab overlying the January 6th layer is highly variable depending on elevation and aspect resulting in a complex snowpack.
In the north of the region, persistent weaknesses continue to produce large and destructive avalanches in higher elevation terrain. Conservative terrain selection is still critical.
The January 6th facets are widespread at all elevations and aspects and will very likely become highly reactive to the extreme day time heating on Tuesday and the rest of the week.
="s_3FE45715"> A smaller avalanche in motion could step down to a variety of buried persistent weak layers in the snowpack.
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> A smaller avalanche in motion could step down to a variety of buried persistent weak layers in the snowpack.</span><span class="s_AA239
A smaller avalanche in motion could step down to a variety of buried persistent weak layers in the snowpack.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.</span><span class="s_AA239
="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.</span><span class="s_AA239
In the north of the region, persistent weaknesses continue to produce large and destructive avalanches in higher elevation terrain. Conservative terrain selection is still critical.
A deeply buried weak layer can still be triggered, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.
Recent storm loading, solar radiation and skyrocketing freezing levels will increase the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls triggered by solar radiation may also trigger a persistent slab avalanche.
="s_3FE45715">Recent storm loading, solar radiation and skyrocketing freezing levels will increase the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls triggered by solar radiation may also trigger a persistent slab avalanche.
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</style><p class="p_CC664AAA"><span class="s_A8FEC758"> I would give it a couple more days to see how the warm temperatures have affected the reactivity of buried weak layers in the snowpack.</span><span class="s_AA239
The Jan 6th layer down 35 to 80cm in the snowpack is still possible to trigger. Large avalanches can be expected if this layer is triggered.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Warm temperatures may increase the sensitivity of this problem.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Warm temperatures may increase the sensitivity of this problem.
A deeply buried weak layer can still be triggered, creating very large avalanches. Warm temperatures may increase the sensitivity of this problem.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">I would give it a couple more days to see how the warm temperatures have affected the reactivity of buried weak layers in the snowpack.
="s_3FE45715">I would give it a couple more days to see how the warm temperatures have affected the reactivity of buried weak layers in the snowpack. A large trigger like a collapsing cornice could possible step down.
In the north of the region, persistent weaknesses continue to produce large and destructive avalanches in higher elevation terrain. Although the likelihood of triggering a persistent slab is dropping, the consequences could be severe.
Recent storm loading, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
="s_3FE45715">Recent storm loading, rain, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
The Jan 6th layer is a classic low probability, high consequence problem. It is currently hard to trigger, but resulting avalanches will likely be large to very large. Take time to evaluate this layer before committing to a terrain feature.
Recent storm loading, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
Recent storm loading, rain, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
In the north of the region, persistent weaknesses continue to produce large and destructive avalanches in higher elevation terrain. Although the likelihood of triggering a persistent slab is dropping, the consequences could be severe.
I'm uncertain about how the prolonged warm temperatures have affected the reactivity of buried weak layers in the snowpack. I'd continue to treat open features around tree line cautiously until the snowpack cools off.
The early January surface hoar remains a classic low probability problem west of the Divide. I'm unsure as to how it will respond to the prolonged warm temperatures, so I would treat larger terrain features with caution until the snowpack cools.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches.
A deeply buried weak layer remains sensitive to human triggering, which can result very large avalanches.
These should be high on the radar these days. Natural activity has slowed but not stopped.
A buried weak layer of surface hoar remains a concern, especially around Golden where it has recently created some very large avalanches.
I'm still concerned about the layer of surface hoar buried back in January.&nbsp; Could the forecast storm be the straw that breaks the camels back? I'm not sure! Given this uncertainty I would avoid open features around treeline tomorrow.
The early January surface hoar poses a classic low probability, high consequence problem. I'm unsure as to how this layer will respond to the prolonged warm temperatures, so I would treat larger terrain features with caution until the snowpack cools.
The deeply buried persistent weak layer of surface hoar has been reactive during and since the last storm in the north of the region. There is a great deal of uncertainty with regards to the distribution and the likelihood of triggering.
The deeply buried persistent weak layer of surface hoar was reactive during the last wet storm. It has not cooled off much, and more warm wet weather is forecast. Uncertainty with this layer requires conservative terrain selection.
There is a lot of uncertainty with the distribution and likelihood of triggering this layer. Conservative terrain selection is required when uncertainty is high.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches.
A deeply buried weak layer remains sensitive to human triggering, which can result very large avalanches.
Persistent slabs are 35 to 80cm thick are are widespread in Alpine lee features and in more specific areas at treeline. Likely touchy in shallow snowpack areas.
There is a lot of uncertainty with the distribution and likelihood of triggering this layer. Conservative terrain selection is required when uncertainty is high.
A buried weak layer of surface hoar remains a concern, especially around Golden where it has recently created some very large avalanches.
The deeply buried persistent weak layer of surface hoar has been reactive during and since the last storm in the north of the region. There is a great deal of uncertainty with regards to the distribution and the likelihood of triggering.
Persistent slab avalanches are more likely in the north of the region where they continue to release naturally. The forecast storm load may increase the likelihood of triggering in all areas of the region.
Given the weak layers in the snow, there is still a possibility for a larger release deep in the snowpack. Potential triggers would be from shallow rocky start zones, or possibly from a small avalanche stepping down to lower layers.
A buried layer of surface hoar around 60 cm below the surface is cause for concern, especially on open unsupported, or convex slopes.
While the probability of triggering deeper layers are low, the consequences of such a slide would be large. Most likely trigger points are steep, rocky start zones in lower snow parts in the north of the forecast region (Duffey Lake or Chilcotins).
Strong winds have redistributed snow in the alpine and treeline created a great deal of variability in depth and distribution of the snowpack. Snowpack tests show a wide spectrum of results from no results to sudden collapses.
Buried weak layers are still reactive in the snowpack, especially in the far north of region, and have the potential to produce very large avalanches. Thin spot triggering, cornice releases, and smaller avalanches all have the potential to step down.
Buried weak layers are still reactive in the snowpack, especially in the far north of region, and have the potential to produce very large avalanches. Thin spot triggering, cornice releases, and smaller avalanches all have the potential to step down.
A weak mix of surface hoar and facets remain a concern, especially in the Dogtooth Range in the north of the region. A cautious approach is required in this area, as this layer may still surprise with nasty consequences.
A weak mix of surface hoar and facets remain a concern, especially in the Dogtooth Range in the north of the region. A cautious approach is required in this area, as this layer may still surprise with nasty consequences.
Heavy loading, warming, and sunny periods could reactivate buried surface hoar. This is more likely in drier areas where surface hoar is found in the upper metre of the snowpack.
While the probability of triggering deeper layers are low, the consequences of such a slide would be large. Most likely trigger points are steep, rocky start zones in lower snow parts in the north of the forecast region (Duffey Lake or Chilcotins).
Avalanches initiated in the upper snowpack could step down to the Jan 6th interface and produce very large avalanches. Thin snowpack areas are common trigger points.
Additional loading by new snow and wind, warming, and sunny periods could reactivate buried surface hoar. This is more likely in drier areas where surface hoar is found in the upper metre of the snowpack.
A recent size 3 persistent slab avalanche near Golden is a clear indication that deeply buried weaknesses cannot be trusted. Extra caution is required in the north of the region near Golden.
Buried weak layers are still reactive in the snowpack, especially in the far north of region, and have the potential to produce very large avalanches. Thin spot triggering, cornice releases, and smaller avalanches all have the potential to step down.
Despite somewhat encouraging test results, we still don't trust this layer. Especially as the load increases (locally through windloading). This layer may cause large, unexpected avalanches. Large triggers should also be considered.
A recent size 3 persistent slab avalanche near Golden is a clear indication that deeply buried weaknesses cannot be trusted. Extra caution is required in the north of the region near Golden.
This interface is gaining strength but keep it in your mind as you travel.&nbsp; A few avalanches over the past 72hrs were observed on this interface.
Low probability, high consequence problem. Beware of large triggers such as cornice failure.&nbsp;
This layer can possibly wake up with large triggers. Avalanches &amp; cornices hitting the slopes are both potential triggers.
A buried crust and surface hoar layer lie up to 100cm below the surface. Although you may not see this weakness on every slope, avalanches at this interface may be surprisingly large. I would maintain respect for this layer for the foreseeable future
As previously mentioned, snowpack tests are showing less alarming results on this layer but strong caution must taken in shallow snowpack features at treeline and especially in the alpine where the winds have had greater effect on distribution.
Persistent slab avalanches may be triggered down 60-90 cm below the storm snow that arrived this week. This problem is more likely where there is a weak layer of surface hoar at the crust interface. Wide fracture propagations are likely.
This is the problem that we previously called a storm slab. The February 10th surface hoar continues to allow for long fracture propagations resulting in very large avalanches. Strong solar may increase likelihood of triggering.
A buried crust and surface hoar layer lies up to 130cm below the surface in most parts of the region, although it may not be found on every slope, an avalanche at this interface may quite large. Consider this layer for the foreseeable future.
The February 10th surface hoar continues to allow for long fracture propagations resulting in very large avalanches. Strong solar may increase likelihood of triggering.
Persistent slab avalanches may be triggered down 60-90 cm below the recent storm snow. This problem is more likely where there is a weak layer of surface hoar at the crust interface. Wide fracture propagations are likely.
It may be possible to trigger weaknesses within the recent storm snow or at the crust interface at the bottom. be particularly cautious in wind-loaded and cross-loaded terrain near ridge crests.
Recent snowpack tests show sudden collapses on the Jan 6th facets and in other locations no results.&nbsp; Treat large scale alpine slopes with high caution and watch out for cornices that can trigger this layer especially shallow areas.
A crust and surface hoar layer now lies buried up to 130cm below the surface in many parts of the region, it may not be found on every slope, but an avalanche at this interface could be quite large. Keep this layer on the radar for future reference.
="s_3FE45715">Buried weak layers remain a concern. Large avalanche can be triggered from thin spots or by heavy loads such as cornice releases. Smaller avalanches in motion have the potential to step down to these layers.
="s_3FE45715">Several buried weak layers remain a concern depending on where you are. Large avalanches can be triggered from thin spots or by heavy loads such as cornice releases. Smaller avalanches in motion have the potential to step down to these layers.
Up to 50cm of recent storm snow in parts of the region is beginning to settle and bond.&nbsp; Give it time to stabilize.
&nbsp; A weak layer of surface hoar and/or crust down 70-90cm is susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
A weak layer of surface hoar and/or crust down 70-90cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
A weak layer of surface hoar and/or crust down 70-90cm is susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
The &quot;low probability, high consequence&quot; phrase applies to this layer. Large triggers (cornices or other, smaller avalanches) are especially concerning.
If this layer is triggered, expect large avalanches. Be aware of large triggers such as cornices or small avalanches that may step down. Before trusting this layer carefully assess the snow and the overall terrain picture.
everal buried weak layers remain a concern depending on where you are in the region. In thin snowpack areas large avalanches can be triggered from thin spots or by heavy loads such as a cornice release or smaller avalanche.
The storm slab should be bonding on north aspects, but may become reactive on solar facing slopes.
A weak layer of surface hoar and/or a crust down 70-90cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
A weak layer of surface hoar and/or crust down 70-90cm is susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
A weak layer of surface hoar and/or crust down 70-90cm is susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
Large triggers are the main concern in terms of triggering this layer. Keep an eye on overhead threats such as cornices. The base of alpine cliffs have been a common theme with the recent avalanche observations.
A weak layer of surface hoar and/or a crust down 60-100cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
The storm slab sitting on  the mid feb melt freeze crust (possibly with facets) should be regarded as a serious problem, and will be for some time.
A storm slab or wet avalanche could step down and trigger a deeply buried weak layer, creating a surprisingly large avalanche.
A weak layer of surface hoar and/or a crust down 60-100cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
A weak layer of surface hoar and/or crust down 40-70cm is susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
A weak layer of surface hoar and/or a crust down 70-90cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. Wide fracture propagations are likely.
Recent avalanche activity has tested this layer with encouraging results. Despite that, we must recognize the variable nature of the snowpack and still treat this layer with some concern. Big terrain should be approached with caution.
A weak layer of surface hoar and/or a crust down 50-90cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. It may be still be possible to directly trigger this layer during the heat of the day.
="s_3FE45715">A weak layer of surface hoar and/or a crust down 60-100cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. It may be still be possible to directly trigger this layer during the heat of the day.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A weak layer of surface hoar and/or a crust down 50-90cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. It may be still be possible to directly trigger this layer during the heat of the day.</span><span class="s_AA239
The slab overlying the mid-Feb melt freeze crust varies from 40 to 100cm through the region. This is still a layer to keep in mind, as an avalanche on this layer could be large and destructive.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A weak layer of surface hoar and/or a crust down 40-70cm remains susceptible to large triggers such as cornice falls or smaller avalanches stepping down. It may be still be possible to directly trigger this layer during the heat of the day.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">A storm slab or wind slab could step down and trigger a deeply buried weak layer, creating a surprisingly large avalanche.
The likelihood of triggering the weak crust/surface hoar layer down 50-90cm is decreasing with colder temperatures. In the Monashees, a patchy layer of surface hoar down 30-40cm may still be reactive to skier triggering.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering the weak crust/surface hoar layer down 50-90cm is decreasing with colder temperatures. In the Monashees, a patchy layer of surface hoar down 30-40cm may still be reactive to skier triggering.</span><span class="s_AA239
This is still a layer to keep in mind, as an avalanche on this layer could be large and destructive.
ont-weight: normal;font-size: 14px;color: #121212; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">A storm slab or wind slab could step down and trigger a deeply buried weak layer, creating a surprisingly large avalanche.
The likelihood of triggering the weak crust/surface hoar layer down 40-70cm is decreasing with colder temperatures but may still be triggered with heavy triggers like cornice falls or smaller avalanches stepping down.
The snowpack appears to be gaining strength and we are gradually gaining confidence in bigger terrain in the alpine with cautious analysis of snowpack depth and distribution. Essentially, we encourage the avoidance of steep, rocky &amp; shallow areas
Low likelihood, high consequence.
Low likelihood, high consequence.
This is still a layer to keep in mind, as an avalanche on this layer could be large and destructive.
="s_3FE45715">Several buried weak layers remain a concern depending on where you are in the region. In thin snowpack areas large avalanches can be triggered from thin spots or by heavy loads such as a cornice release or smaller avalanche.
The likelihood of triggering the weak crust/surface hoar layer down 40-70cm is decreasing with colder temperatures but may still be triggered with heavy triggers like cornice falls or smaller avalanches stepping down.
The likelihood of triggering the weak crust/surface hoar layer down 50-90cm is decreasing with colder temperatures. In the Monashees, a patchy layer of surface hoar down 30-40cm may still be reactive to skier triggering.
The likelihood of triggering the weak crust/surface hoar layer down 50-90cm is decreasing with cooler temperatures. In the Monashees, a patchy layer of surface hoar down 30-40cm may still be reactive to skier triggering.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Buried weak layers remain a concern depending on where you are in the region.  In thin snowpack areas, large avalanches can still be triggered from thin spots or by heavy loads such as a cornice collapse or smaller avalanche.</span><span class="s_AA239
Large triggers such as cornice failures and big solar heat input will make this layer re-emerge.  It is buried 60-80cm deep in the snowpack.  It is also possible to trigger this layer with lighter loads in isolated thin snowpack areas in the alpine.
Smaller sluffs or wind slabs, cornice falls, or a ride/group of riders in the wrong spot may be enough load to trigger a crust and/or surface hoar layer that is buried an average of 60 cm deep. 
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Smaller sluffs or storm slabs, cornice falls, or a rider/group of riders in the wrong spot may be enough load to trigger a crust and/or surface hoar layer that is buried an average of 80 cm deep. </span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Smaller sluffs or wind slabs, cornice falls, or a ride/group of riders in the wrong spot may be enough load to trigger a crust and/or surface hoar layer that is buried an average of 100 cm deep. </span><span class="s_AA239A9B">
This is still a layer to keep in mind, as an avalanche on this layer could be large and destructive.
This is still a layer to keep in mind, as an avalanche on this layer could be large and destructive.
Smaller sluffs or slabs, cornice falls, or a rider/group of riders in the wrong spot may be enough load to trigger a crust and/or surface hoar layer that is buried an average of 60 cm deep. 
Smaller sluffs or wind slabs, cornice falls, or a rider/group of riders in the wrong spot may be enough load to trigger a crust and/or surface hoar layer that is buried an average of 100 cm deep.
These remain on the list of problems to look for because of the variability within the snowpack. Probing and digging is the best tool to find and assess this layer.
Smaller storm slab avalanches may step down and awaken this sleeping dragon.
="s_3FE45715">Buried weak layers remain a concern in the north of the region where large avalanches can still be triggered from thin spots or by heavy loads such as a cornice collapse or smaller avalanche.
Smaller storm slab avalanches may step down and awaken this sleeping dragon in areas where mid February surface hoar layer is still present.
Forecasters today investigated the Jan 6th Facet layer and in a deep tap test, a sudden collapse result was found. This layer although showing signs of deteriorating and becoming dormant, it is still responsible for the odd large (size 3) avalanche.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a metre.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a metre.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around 60cm.
An old weak layer down 80-100cm has been dormant recently but could wake up with substantial warming, sun, or new load. Heavy triggers such as cornice falls or smaller avalanches have the potential to step down to this layer.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a 60cm.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a metre.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a metre.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a metre.
The Jan 6th interface (buried 60 to 110cm) is giving variable test results in snowpack stability tests. This problem has a low probability of triggering, but has high consequences. Forecasters triggered a size 2.5 avalanche on this layer yesterday.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a metre.
Heavier triggers such as cornice falls, groups of people, or smaller avalanches stepping down, or lighter triggers (such as a person) in the wrong spot may be enough load to trigger a crust and/or surface hoar layer down around a 60cm.
An old weak layer down 80-100cm has been dormant recently but could wake up with substantial warming, sun, or new load. Heavy triggers such as cornice falls or smaller avalanches have the potential to step down to this layer.
These are waking up. We are finding thin areas to&nbsp; more and more suspect as the load increases. Big terrain should be treated with extreme caution while the internal snowpack adjustment takes place. Large triggers are also concerning.
Transitional terrain in the alpine is a likely place to find this layer within the human triggering depth range.
An old weak layer down 80-100cm has been dormant recently but could wake up this weekend with substantial warming and storm loading. Heavy triggers such as cornice falls or smaller avalanches in motion have the potential to step down to this layer.
The February 10th surface hoar layer is buried down about 60 cm in most areas. High freezing levels and continued loading from new snow and wind may increase the likelihood of triggering this persistent weak layer.
There are two buried surface hoar layers of concern. The February 27th layer is down 40-60 cm and the February 10th layer is generally 15-30 cm deeper in the snowpack. Buried surface hoar may be associated with a crust that allows for wide fractures.
The February 10th buried surface hoar layer may be down about one metre in most areas. Heavy loading from new snow and wind, as well as high freezing levels may increase the likelihood of triggering this deeply buried weak layer.
The February 10th buried surface hoar layer is now down more than a metre in most areas. Heavy loading from new snow and wind, combined with high freezing levels may increase the likelihood of triggering this weak layer.
Buried surface hoar and/or a crust may be down 40-60 cm and easy to trigger with light additional loads or from travelling on adjacent terrain.
Caution in the alpine elevation band in shallow snowpack areas or where the winds have scoured the snowpack to the rocks.
The February 10th buried surface hoar layer is now down more than a metre in most areas. Heavy loading from new snow and wind, combined with high freezing levels may increase the likelihood of triggering this weak layer.
The February 10th surface hoar layer is buried down about 60 cm in most areas. High freezing levels and continued loading from new snow and wind may increase the likelihood of triggering this persistent weak layer.
The February 10th buried surface hoar layer may be down about one metre in most areas. Heavy loading from new snow and wind, as well as high freezing levels may increase the likelihood of triggering this deeply buried weak layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
An old weak layer down 80-100cm has been dormant recently but could wake up this weekend with substantial warming and storm loading. High freezing levels and rain may result in persistent weak layers &quot;waking up.&quot; </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Cooling temperatures and dropping freezing levels may decrease the likelihood of triggering this deeply buried surface hoar layer. This is becoming a low likelihood but high consequence scenario.
Persistent weak layers of buried surface hoar may continue to be triggered by large loads like cornice falls or a large group of sledders re-grouping. Avoid un-supported terrain and shallow wind effected slopes adjacent to large alpine slopes.
The persistent weak layer of surface hoar may continue to be triggered by large loads like re-grouping or cornice falls.
The deeply buried persistent weak layer of buried surface hoar is now down over a metre in most areas. This weak layer is expected to become more difficult to trigger as temperatures and freezing levels drop.
The deeply buried persistent weak layer of surface hoar may be less likely to trigger after the warm storm and subsequent cooling trend. Avoid un-supported slopes and shallow wind effected terrain adjacent to large alpine features.
Snowpack depth is a critical consideration with this layer. Deeper areas are generally harder to trigger.
The late-Feb crust/surface hoar layer down 40-70cm remains reactive to human-triggering where it still exists. North aspects between 1900 and 2200m seem to be most reactive.
A weak layer of surface that was buried on February 27th may be down 20-40 cm. This weak layer may be associated with a crust on solar aspects. The February 11th surface hoar layer is now down 50-60 cm and continues to be a concern.
The February 27th surface hoar and sun crust combination may continue to be triggered by large loads like cornice falls or wind slab avalanches in motion.
The weak layer of surface hoar that was buried on February 27th is now down 50-90 cm and may continue to be triggered by human activity. Wide fracture propagations are possible where this weak layer is associated with a sun crust.
The recent storm snow may be sitting on a weak layer of buried surface hoar that is down 50-80 cm.
The late-Feb crust/surface hoar layer down 40-70cm remains reactive to human-triggering where it still exists. North aspects between 1900 and 2200m seem to be most reactive.
Shallow snowpack areas at ridge top where the winds have scoured thin to thick snowpack depths are to be avoided - it is possible to trigger very large, full depth avalanches on the January 6th facets.
The weak surface hoar layer that was buried on February 27th is now down 30-50 cm and continues to allow for long fracture propagations. Wind slabs in motion or cornice falls may step down to this persistent weak layer.
The persistent weak layer of buried surface hoar may be most likely to trigger on north thru northeast aspects above 2100 metres. Remote triggering and long fracture propagations continue to be a concern.
The recent storm slab continues to be triggered naturally and remotely from adjacent terrain where it is sitting on the persistent weak layer of buried surface hoar from February 27th. Northerly aspects above 2100 metres are the most likely suspects.
The late February buried surface hoar may continue to be triggered by large loads like cornice falls, or wind slabs in motion.
Deeply buried surface hoar will likely produce large natural avalanches with heavy loading from snow, wind and rain, as well as shallower slab avalanches stepping down.
A crust/surface hoar layer buried approximately 60 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during stormy weather and produce large avalanches.
A crust/surface hoar layer buried approximately 70 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during stormy weather and produce large avalanches.
A crust/surface hoar layer buried approximately 70 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during stormy weather and produce large avalanches.
A crust/surface hoar layer buried approximately 60 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during stormy weather and produce large avalanches.
="s_3FE45715">A crust/surface hoar layer buried approximately 60 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during periods of solar radiation and produce large avalanches.
="s_3FE45715">A crust/surface hoar layer buried approximately 70 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during periods of solar radiation and produce large avalanches.
="s_3FE45715">A crust/surface hoar layer buried approximately 70 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during periods of solar radiation and produce large avalanches.
A crust/surface hoar layer buried approximately 70 cm below the surface is triggerable by people on sleds or on skis. This layer could also avalanche naturally during periods of solar radiation and produce large avalanches.
Direct sun-exposure is expected to weaken large droopy cornices. Not only are massive cornice falls a hazard in themselves, but they can also act a heavy trigger for slab avalanches on the slope below.
A layer of buried surface hoar down 70-100cm has recently been reactive around Stewart and north.&nbsp; An old weak crust layer down over 1m may still be lingering in the south of the region
A persistent weakness buried late-February, is now down close to a metre in places and remains sensitive to triggers.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A few persistent weaknesses lie buried in the top metre of the snowpack. These layers are variably reactive throughout the region, but they have the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A persistent weakness lies buried up to 90cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.</span><span class="s_AA239
A persistent weakness lies buried up to 80cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A crust/surface hoar layer buried approximately 70 cm below the surface is triggerable by people on sleds or on skis. This layer has the potential to produce large avalanches and should be treated with respect.
Persistent weaknesses lie buried in the top 90cm of the snowpack. Although these layers are slowly becoming less likely to trigger, they have the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A persistent weakness buried late-February, is now down close to a metre deep in places and remains sensitive to triggers.
A persistent weakness lies buried up to 90cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A persistent weakness lies buried up to 90cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A persistent weakness lies buried up to 90cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A layer of buried surface hoar down 70-100cm has recently been reactive around Stewart and north.  An old weak crust layer down over 1m may still be lingering in the south of the region.
The late-February persistent weakness is now down around 100 cm below the surface. Cornice fall, a surface avalanche in motion or even a rider in a thin spot could initiate an avalanche on this interface.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A persistent weak layer continues to produce intermittent large avalanches. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.</span><span class="s_AA239
A layer of buried surface hoar or facets down 70-100cm has recently been reactive around Stewart and north.  An old weak crust layer down over 1m is still a concern in the south of the region.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A persistent weak layer continues to produce intermittent large avalanches. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.</span><span class="s_AA239
A persistent weak layer continues to produce intermittent large avalanches. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A persistent weakness lies buried up to 90cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A layer of buried surface hoar or facets down 70-100cm has recently been reactive around Stewart and north. An old weak crust layer down over 1m remains a concern in the south of the region.
A persistent weak layer continues to produce intermittent large avalanches. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A persistent weakness lies buried up to 100cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
Recent storm snow has added to the load above the buried surface hoar layer from February 27th. This deeply buried weak layer continues to be a concern for triggering very large avalanches.
A persistent weakness lies buried up to 110cm below the surface. Although this layer is slowly becoming less likely to trigger, it has the potential to surprise with nasty consequences. I'd continue riding with a conservative mind set.
A persistent weakness lies buried up to 100cm below the surface. Although this layer is slowly becoming less likely to trigger, it continues to catch people by surprise. I'd continue riding with a conservative mind set.
A layer of buried surface hoar down 70-100cm has recently been reactive around Stewart and north. An old weak crust layer down over 1m remains an isolated concern in the south of the region.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.</span><span class="s_AA239
The deeply buried late February surface hoar may continue to allow for human triggering with large loads like a group of skiers or a snowmobile. Cornice falls or storm slab avalanches in motion may step down to the deeply buried persistent weak layer
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
Deeply buried surface hoar down about one metre continues to be triggered by light additional loads like a single skier or rider. Forecast strong solar radiation and warm daytime temperatures are expected to increase the likelihood of triggering.
A layer of buried surface hoar, down 70-100 cm, has recently been reactive around Stewart and north. An old weak crust layer down over 1m remains an isolated concern in the south of the region.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
Lingering persistent weaknesses can still be found in the top 100 cm of the snowpack in parts of the region. Triggering is more likely with a heavy load (cornice fall) or warming and solar radiation (expected).&nbsp;
Smaller storm slab avalanches may step down and awaken this sleeping dragon in areas where mid February surface hoar layer is still present.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.</span><span class="s_AA239
Smaller storm slab avalanches may step down and awaken this sleeping dragon in areas where mid February surface hoar layer is still present.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
Deeply buried surface hoar down about one metre continues to be triggered by light additional loads like a single skier or rider. Forecast strong solar radiation and warm daytime temperatures are expected to increase the likelihood of triggering.
Persistent slabs up to 50cm thick are present in lee and cross-loaded features in alpine areas and in very specific locations at treeline. Solar aspects where these slabs are overlying a crust will be a concern with solar radiation.
Persistent weaknesses have recently been reacting to cornice triggers in the northern part of the region. Keep these in mind if you're riding near Bear Pass or Ningunsaw Pass.&nbsp;
Surface hoar buried down about one metre has been recently triggered by light loads like a single skier or rider. Strong solar radiation and warm daytime temperatures may increase the likelihood of triggering.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and I'd be increasingly cautious as solar radiation comes into play.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and be increasingly cautious as freezing levels increase.</span><span class="s_AA239
The late February layer is becoming less likely to trigger, but it continues to surprise riders with large avalanches. I'd aim for well-supported slopes without convexities, and be increasingly cautious as freezing levels increase.
Wind slabs up to 40cm thick are present in lee and cross-loaded features in alpine areas and in very specific locations at treeline.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Small loose wet avalanches and failing cornices triggering slab avalanches on the late February layer would be on the forefront of my mind as I travel through the mountains this weekend.</span><span class="s_AA239
Small loose wet avalanches and failing cornices triggering slab avalanches on the late February layer would be on the forefront of my mind as I travel through the mountains this weekend.
Small loose wet avalanches and failing cornices triggering slab avalanches on the late February layer would be on the forefront of my mind as I travel through the mountains this weekend.
Small loose wet avalanches and failing cornices triggering slab avalanches on the late February layer would be on the forefront of my mind as I travel through the mountains this weekend.
Buried surface hoar about one metre down might be triggered by light loads like a single skier or rider especially on north aspects. Strong solar radiation and warm daytime temperatures may increase the likelihood of triggering on south aspects.
Persistent weaknesses have recently been reacting to cornice triggers in the northern part of the region. Keep these in mind if you're riding near Bear Pass or Ningunsaw Pass.
Wind slabs up to 40cm thick are present in lee and cross-loaded features in alpine areas and in very specific locations at treeline.
Persistent weaknesses have recently been reacting to cornice triggers in the northern part of the region. Keep these in mind if you're riding near Bear Pass or Ningunsaw Pass.
This weak layer has shown recently that large triggers ( cornice failure ) can make it reactive.
="s_3FE45715">There are a few different persistent weak layers in the snowpack that are capable of producing large destructive avalanches.  While these interfaces are likely getting harder to trigger, they remain problematic.
The late February weak layer is becoming less sensitive to triggers, but it has not gone away and it continues to produce very large natural avalanches. Continue to seek out conservative terrain as you plan your day in the mountains.
="s_3FE45715">The late weak February layer is becoming less sensitive to triggers, but it has not gone away and it continues to produce very large natural avalanches. Continue to seek out conservative terrain as you plan your day in the mountains.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The late February weak layer is becoming less sensitive to triggers, but it has not gone away and it continues to produce very large natural avalanches.&nbsp; Continue to seek out conservative terrain as you plan your day in the mountains.</span><span class="s_AA239
The late February weak layer is becoming less sensitive to triggers, but it has not gone away and it continues to produce very large natural avalanches. Continue to seek out conservative terrain as you plan your day in the mountains.
The late weak February layer is becoming less sensitive to triggers, but it has not gone away and it continues to produce very large natural avalanches. Continue to seek out conservative terrain as you plan your day in the mountains.
The late February weak layer is becoming less sensitive to triggers, but it has not gone away and it continues to produce very large natural avalanches. Continue to seek out conservative terrain as you plan your day in the mountains.
This weak layer might again become reactive with additional loading.&nbsp; A cornice failure might provide the load needed to trigger it.
There have been a few skier remote triggered avalanches from solar aspects in the alpine on this persistent weak layer in the north of the region. This layer continues to be tricky to forecast with respect to distribution and likelihood.
A few persistent weaknesses exist in the mid snowpack (see snowpack description). These potentially destructive layers may become reactive with spring warming or with a large trigger such as a cornice fall.
A few persistent weaknesses exist in the mid snowpack (see snowpack description). These potentially destructive layers may become reactive with spring warming or with a large trigger such as a cornice fall.
It is important to remember that this layer presents itself as either a crust, or a density change. Pay close attention to all of the current crust problems and keep tabs on them as you travel.
While becoming unlikely, a persistent slab could still fail with a large trigger like a cornice fall, or from a thin snowpack area.
The late February surface hoar/crust persistent weak layer is down close to a metre in most areas, and continues to give sudden planar results in snowpack tests suggesting&nbsp; wide fracture propagations are possible.
Persistent slab avalanche releases have become less frequent over the past two days. However, a natural size 2.5 was reported on Tuesday from a SW aspect in the alpine, where buried surface hoar was sitting on a sun crust.
Sudden planar results in snowpack tests suggest that triggering this layer may result in wide fracture propagations and large avalanches. Avoid convex un-supported terrain features.
The late February persistent weak layer has been remotely triggered as recently as Monday March 21st on a southeast aspect in the alpine. This problem may be more likely in the north of the region.
While becoming unlikely, a persistent slab could still fail with a large trigger like a cornice fall, or from a thin snowpack area.
Persistent slab avalanche releases have become less frequent over the past few days. However, a natural size 2.5 was reported on Tuesday from a SW aspect in the alpine, where buried surface hoar was sitting on a sun crust.
The late February surface hoar/crust persistent weak layer is down close to a metre in most areas, and continues to give sudden planar results in snowpack tests suggesting wide fracture propagations are possible.
Sudden planar results in snowpack tests suggest that triggering this layer may result in wide fracture propagations and large avalanches. Avoid convex un-supported terrain features.
The late February persistent weak layer has been remotely triggered as recently as Monday March 21st on a southeast aspect in the alpine. This problem may be more likely in the north of the region.
A few persistent weaknesses exist in the mid snowpack (see snowpack description). These potentially destructive layers may become reactive with spring warming or with a large trigger such as a cornice fall.
There are multiple melt form crusts in the upper to midpack and are producing variable results in snowpack tests. In spite of bonding interfaces, watch the warming inputs such as solar and increasing freezing levels on wind slabs over these crusts
Sudden planar results in snowpack tests suggest that triggering this layer may result in wide fracture propagations and large avalanches. Avoid convex un-supported terrain features.
="s_17AE1194">While becoming unlikely, a persistent slab could still fail with a large trigger like a cornice fall, or from a thin snowpack area.
The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem. Choose well supported terrain without convexities.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem. Choose well supported terrain without convexities.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem. Choose well supported terrain without convexities.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A few persistent weaknesses exist in the mid snowpack (see snowpack description). These potentially destructive layers may become reactive with spring warming or with a large trigger such as a cornice fall.</span><span class="s_AA239
This layer has an additional load, and possibly fresh windslabs on top of it. It may become more reactive as it adjusts to the new snow and/or windloading. It also has the potential to step down to the deeper layers.
Natural activity has stopped on this layer. The almost spring conditions are helping it to bond, however watch the non-polar aspects as it may be a bit slower to improve. With the new snow, this layer is down 30-50cm.
The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem. Choose well supported terrain without convexities.
The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem. Choose well supported terrain without convexities.
The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem. Choose well supported terrain without convexities.
Sudden planar results in snowpack tests suggest that triggering this layer may result in wide fracture propagations and large avalanches. Avoid convex un-supported terrain features.
This slab may be hard to trigger, but a large shock like a cornice could produce a very large, destructive avalanche
New wind slabs out of the recent storm snow can be found at ridgelines, and in gullied features.&nbsp;
The persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem.
Sudden planar results in snowpack tests suggest that triggering this layer may result in wide fracture propagations and large avalanches. Avoid convex un-supported terrain features.
A persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem.
Still on everyone's radar in the Northwest Coastal region.&nbsp; A large trigger such as a cornice might reawaken this sleeping beast..
A persistent weak layer of buried surface hoar, facets, and crusts is buried down close to a metre. This has become a low probability of triggering, but high consequence of large avalanche problem.&nbsp;
Persistent slabs have been forming from the new over the past week. These slabs are overlying the 0321 melt freeze crust on solar aspects and previous windslabs on northern aspects.
A buried persistent weakness, around 60-100 cm deep, could reactivate with strong spring sunshine and climbing temperatures this week.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weakness, around 50-90 cm deep, could reactivate with strong spring sunshine and climbing temperatures this week.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weakness, around 60-100 cm deep, could reactivate with strong spring sunshine and climbing temperatures this week.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weakness, around 60-100 cm deep, could reactivate with strong spring sunshine and climbing temperatures this week.</span><span class="s_AA239A9B">
Deeply buried weak layers may be hard to trigger, but a large event, such as a cornice failure might wake it up. Rapid warming make makes weak layers easier to trigger.  The snow pack doesn't like rapid change.
Wind slabs up to 40cm thick are present in lee and cross-loaded features in alpine areas and in very specific locations at treeline.
Wind slabs are found in lee and cross-loaded features and remain possible to trigger by skier traffic. Despite the MODERATE hazard rating caution is advised in large terrain features.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack. </span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack. </span><span class="s_AA239A9B">
Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack. </span><span class="s_AA239A9B">
Slabs averaging 50cm thick are still found in lee and cross-loaded terrain in the Alpine. If triggered, these could step down to a deeper layer. There is also concern on solar aspects for a slab to fail on one of the numerous buried crust interfaces.
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</style><p class="p_CC664AAA"><span class="s_7D940460">Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_7D940460">Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack.</span><span class="s_AA239
Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the mid and upper snowpack. Avalanches at these interfaces would be surprisingly large and destructive.
Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack.
Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the upper snowpack.
This is a time when the snowpack has taken a great deal of heat and if temperatures and/or solar impact hits the steeper slopes, the heat in the snowpack will likely induce large destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.</span><span class="s_AA239
Intense spring sun and rising temperatures could reactivate buried persistent weaknesses in the mid and upper snowpack. Avalanches at these interfaces could be surprisingly large, so watch your overhead hazard and avoid slopes threatened by cornices.
Persistent slabs may wake up with the prolonged warming, or be triggered by cornice fall.
Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.
Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.
Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.
ont-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3D0464D1">Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.</span><span class="s_AA239
Continued warm and sunny weather may add enough heat to the snowpack to wake-up persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.
ont-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3D0464D1">Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.</span><span class="s_AA239
Continued warm and sunny weather may add enough heat to the snowpack to “wake-up” persistent weak layers buried in the snowpack. Rapid warming of the winter snowpack can result in deeply buried weak layers propagating very large avalanches.
Persistent slabs may wake up with the prolonged warming, or be triggered by cornice fall.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">Persistent slabs may wake up with the prolonged warming, or be triggered by cornice fall.</span><span class="s_3D046
="s_3FE45715">Continued warm weather may add enough heat to the snowpack to wake-up deeply buried persistent weak layers resulting in very large and destructive avalanches which have the potential to run full path.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm weather may add enough heat to the snowpack to wake-up deeply buried persistent weak layers resulting in very large and destructive avalanches which have the potential to run full path.</span><span class="s_AA239
Continued warm weather may add enough heat to the snowpack to wake-up deeply buried persistent weak layers resulting in very large and destructive avalanches which have the potential to run full path.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm weather may add enough heat to the snowpack to wake-up deeply buried persistent weak layers resulting in very large and destructive avalanches which have the potential to run full path.</span><span class="s_AA239
Prolonged warming has reawakened deeply buried weak layers, as well as causing glide slabs to release at the ground. The result is some surprisingly large avalanches.
Prolonged warming may cause deeply buried persistent weak layers to wake up, causing very large avalanches. Glide slabs are also possible.
="s_3FE45715">Cooling temperatures Monday should put the lid on the persistent slab problem for the day, but there may still may be isolated natural failures from extreme terrain.
="s_3FE45715">Cooling temperatures Monday should put the lid on the persistent slab problem for the day, but there may still may be isolated natural failures from extreme terrain.
Cooling temperatures Monday should put the lid on the persistent slab problem for the day, but there may still may be isolated natural failures from extreme terrain.
="s_3FE45715">Cooling temperatures Monday should put the lid on the persistent slab problem for the day, but there may still may be isolated natural failures from extreme terrain.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Brief and slight cooling on Tuesday could make buried persistent weaknesses less sensitive to triggering, but keep this problem on your radar for later in the week when the heat and sun return.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Brief and slight cooling on Tuesday could make this problem less sensitive to triggering, but keep this on your radar for later in the week when the heat and sun return.</span><span class="s_AA239A9B">
Brief and slight cooling on Tuesday could make this problem less sensitive to triggering, but keep this on your radar for later in the week when the heat and sun return.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Brief and slight cooling on Tuesday could make this problem less sensitive to triggering, but keep this on your radar for later in the week when the heat and sun return.</span><span class="s_AA239A9B">
Prolonged warming has reawakened deeply buried weak layers, as well as causing glide slabs to release at the ground. The result has been some surprisingly large avalanches.
="s_17AE1194">Prolonged warming has reawakened deeply buried weak layers, as well as causing glide slabs to release at the ground. The result has been some surprisingly large avalanches.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The chance of slabs failing on buried persistent weaknesses will be on the rise this week. Extra caution is necessary if the snow becomes wet and slushy.</span><span class="s_AA239A9B">
The chance of slabs failing on buried persistent weaknesses will be on the rise this week. Extra caution is necessary if the snow becomes wet and slushy.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The chance of slabs failing on buried persistent weaknesses will be on the rise this week. Extra caution is necessary if the snow becomes wet and slushy.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The chance of slabs failing on buried persistent weaknesses will be on the rise this week. Extra caution is necessary if the snow becomes wet and slushy.</span><span class="s_AA239A9B">
Rapid warming commonly awakens dormant weak layers deep in the snowpack.
Rapid warming commonly awakens dormant weak layers deep in the snowpack.
Rapid warming commonly awakens dormant weak layers deep in the snowpack.
Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.
Rapid warming commonly awakens dormant weak layers deep in the snowpack.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.</span><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Intense solar radiation, a heavy wet surface sluff, or a cornice fall could be enough to trigger lurking deep weaknesses.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Fresh snow followed by rapid warming and strong spring sunshine are a perfect recipe for a fairly widespread loose wet avalanche cycle.</span><span class="s_AA239A9B">
While it is unlikely, triggering this layer is still possible. It is located 50-90cm below the surface. Use caution and consider this layer when venturing into larger terrain.
While it is unlikely, triggering this layer is still possible. It is located 50-90cm below the surface. Use caution and consider this layer when venturing into larger terrain.
Despite the new load from wind and snow, no new avalanches have been reported on this layer. Consider this layer and recent additional load in your terrain choices.
Less activity on the widespread Nov.6 crust of late, but explosives produced an avalanche today which failed on this layer above the Sunshine Road. This shows that larger loads are likely required, but if triggered, will cause bigger avalanches.
This layer is a sleeper and still needs careful consideration.
The recent storm snow has mostly settled, which subsequently has created the problem of persistent slabs. Although there has been little recent avalanche activity concerning this problem, there is still potential.
Beware of open areas at tree-line. Surface hoar is well preserved in sporadic locations. See picture from our Vermillion study plot.
Beware of open areas at tree-line. Surface hoar is well preserved in sporadic locations. See picture from our Vermillion study plot.
Beware of open areas at tree-line and below tree-line. Surface hoar is well preserved in sporadic locations. In wind-loaded areas, it may be buried deeper, creating a thicker slab to avalanche.
Jan 6 layer could be a failure plane in areas with enough load or on the right slope (steeper unsupported features).  May still need a little more load for this layer to become more reactive.&nbsp; Dig down &amp; check for surface hoar (kootenay, sunshine).
The Jan 6 layer could be a failure plane in areas with enough load or on steeper steeper unsupported features.&nbsp; Dig down and look for surface hoar or prominent facets. (best preserved in the Kootenay region).
The Jan 6 interface does not have enough load to be a primary concern. However, when more snow arrives, this layer will become problematic in specific areas (Kootenay Park near tree line).
Hard slabs from last weeks winds persist (beneath recent storm snow) in alpine and treeline terrain. These slabs are unreactive to skier triggering, but  whomphing  and compression tests in the moderate range are being observed on this layer.
Hard slabs from previous high winds have been buried by recent storm snow. These slabs have been unreactive to skier triggering, but new wind loading may awaken them.
Hard slabs from previous high winds have been buried by recent storm snow. These slabs have been unreactive to skier triggering, but new wind loading may awaken them.
In Kootenay and Yoho there is a buried surface hoar and/or crust layer down about 50 cm. This layer may be triggerable on steep terrain features.
In Kootenay and Yoho there is a buried surface hoar and/or crust layer down about 50 cm. This layer may be triggered on steep terrain features where the wind may have stiffened up the overlying snow into a slab.
In Kootenay and Yoho there is a buried surface hoar and/or crust layer down about 50cm. Though little activity has been observed on this layer, it is still producing sudden planar results in tests and should be monitored.
In shallower areas east of the divide deep slabs have been observed failing on the lower facetted snowpack
In shallow snowpack areas, especially East of the divide, the storm snow and wind slabs overlie a weak faceted mid-pack.&nbsp; Avalanches triggered in this region may steep down to ground.
We have been seeing activity on the basal facets East of the divide over the recent week.  One report of a sz. 3 remote triggered in the observation peak area. 
Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.  Be conservative with terrain choices in bigger terrain.
Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.? Be conservative with terrain choices in bigger terrain.
Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.? Be conservative with terrain choices in bigger terrain.
In shallow snowpack areas, particularly east of the divide, whumphing is showiing that remote triggering or triggering is still a possibility. Lower angle well supported slopes are the best terrain choice.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided.  However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided. However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided. However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided. However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected, especiallly on solar aspects
The October melt freeze crust and basal depth hoar are a a concern and avalanches may step down to basal layers. This is primarily a concern on steeper features especially if they are windloaded.
The basal layers of depth hoar and/or the October melt freeze crust are the major weakness in the snowpack and any avalanche will likely fail on, or step down to these layers. Triggering on steep open slopes is still possible.
The main weaknesses in the snowpack continue to be the basal facets and the October 27th melt freeze crust. No recent failures on these layers have been observed however the potential for full depth releases still exists in some alpine locations.
Touchy slabs are building and stiffening over a combination of facets, surface hoar, and sun crust on solar aspects. As the stiffness of the slabs increases, so too will the distance they propagate.
Touchy slabs continue to build and stiffen over a combination of facets, surface hoar, and sun crust on solar aspects. Large propagations (upto 300 m) and several skier remote triggered avalanches to size 2&nbsp; were observed today in KNP.
This layer is still touchy. Avalanche control was producing results on this layer today on the Sunshine Road and 93S.
This layer is still touchy. Expect it to be most reactive on south aspects near tree-line. Typically, it will be about 40cm thick.
The recent storm snow is settling and bonding to itself. There is still a poor bond at the storm snow interface (facets and surface hoar) down about 30-40 cm.
The storm snow is starting to settle into a cohesive slab. As the slab stiffens, the weak layer will get harder to trigger, but the consequences will be greater. The nature and distribution of the weak layer means it will be with us for a while.
The recent storm snow is settling but a poor bond still exists on the storm snow interface. Natural activity has decreased but it is still possible for skiers to trigger this layer.
A poor bond still exists between the storm snow and the Feb 10 interface. This interface is reactive to skier triggering. (see avalanche details)
There is still a poor bond between the storm snow and the Feb.10 layer of facets and surface hoar. This interface is still very susceptible to human triggering.
The storm snow interface down 40-70 cm still producing easy to moderate results. Natural cycle is over but still possible for skiers to trigger this layer.
The natural cycle is over but the Feb 10th interface down 30-70 cm is still producing easy to moderate results, with lots of whumphing and some skier triggered avalanches. Stick to moderate angled, well supported terrain until things improve.
The natural cycle is over but the Feb 10th interface down 25-60 cm is still producing easy to moderate results, with lots of whumphing and some recent skier triggered avalanches. Stick to moderate angled, well supported terrain until things improve.
Snowpack tests on this layer today produced easy results. Despite the easy results no avalanche activity was noted. This is a layer to approach cautiously over the next few days.
The Feb.10 interface of weaker crystals is slow to gain strength. Slab properties above this layer are becoming stiffer, and human triggering is very possible. These seem to be the most touchy on solar aspects where there is a buried suncrust.
The Feb 10th layer continues to produce sudden collapse test results in many areas. The cold temperatures will tighten things up a little and begin to weaken the slab over this layer but it is still a concern in many of the areas in the park.
The Feb. 10th layer is still a prominent feature in the snowpack producing variable results. We are seeing less activity over the past few days, but is still a concern in many regions of the forecast area.
This layer is slowly gaining strength however test results continue to show that wide propagations are possible in some areas which would lead to severe consequences. Sudden collapse results and low scores in propagation saw tests are still common.
This layer is slowly gaining strength however test results continue to show that wide propagations are possible in some areas which would lead to severe consequences. Sudden collapse results and low scores in propagation saw tests are still common.
This layer is gaining strength but tests and whumphing still show there is potential for wide propagation in some areas.&nbsp; Any avalanche on this layer could lead to severe consequences.
Test results on the Feb 10 layer generally in the moderate range but still show lots of potential for good propagation if triggered. Recent storm snow may be enough to activate this layer (see avalanche details). Lots of uncertainly with this layer
Test results on the Feb10 layer mainly in the moderate range with potential for wide propagations if triggered. The recent snow has been shown to overload this layer in the Kootenay,Sunshine, Yoho areas, and less so in the Louise region and Hwy. 93N.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> This layer is especially touchy around Sunshine and in Kootenay on steep features at treeline and below. There have been several </span><a href="https://www.facebook.com/photo.php?fbid=635006586549334&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">skier triggered avalanches</span></a><span class="s_AA239A9B"> to size 2 in past 36 hours and </span><a href="https://www.facebook.com/photo.php?fbid=635006599882666&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">explosive triggered avalanches</span></a><span class="s_AA239A9B"> to size 3 today.
Dense snow is overloading the Feb.10th interface and will continue through Sunday. 
The Feb 10th layer continues to be reactive in many areas especially at tree line. Avoid any steep terrain until this has a chance to bond.
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.s_9255B882 { font-family: 'Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> The recent snow has overloaded this layer. Although natural activity is tapering, this layer remains </span><span class="s_2823317B">VERY</span><span class="s_AA239A9B"> touchy as seen by two very </span><a href="https://www.facebook.com/photo.php?fbid=636202979763028&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">close calls </span></a><span class="s_AA239A9B">today.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Natural avalanche cycle is over but conditions are still very touchy and ripe for skier triggering. Any avalanche triggered has the potential to be very</span><a href="https://www.facebook.com/media/set/?set=a.636554726394520.1073741856.145133538869977&amp;type=1#!/photo.php?fbid=636554863061173&amp;set=a.636554726394520.1073741856.145133538869977&amp;type=3&amp;theater" target="_blank"><span class="s_9255B882"> large.</span></a><span class="s_AA239
Natural activity has slowed down on this layer, but we have seen large avalanches over the past few days with the new storm snow overloading the Feb.10th interface. In some cases we have seen this step down to the basal facets in thin snowpack areas.
In thinner snowpack areas, this layer is still touchy as shown by numerous large whumphs and sudden collapse results today. It is especially reactive on solar aspects where there is a buried sun crust and may be less reactive in deeper snowpacks
This layer is still touchy in thin snowpack areas (especially where there is a buried sun crust), and large whumps and sudden collapse results have been found. With limited observations this layer now seems less reactive in deeper snowpack areas.
With the new snow, expect the Feb 10th layer of facets, surface hoar, and some buried sun crust to &quot;wake up&quot;, especially in thin and variable snowpack areas.&nbsp;
As yesterdays avalanche indicates, the basal weaknesses are still susceptible to human triggering. Use caution in steep, shallow areas that have not previously avalanched.
The Feb 10th layer continues to produce whumphs, natural and remote avalanches and skier triggered avalanches. It is especially sensitive in thinner or cross loaded snowpack areas and places with a buried sun crust.
We are seeing less activity with this problem as the days go by. It is still touchy and what is left is a low likelihood but high consequence situation if it is triggered.
Activity on the Feb.10th of facets, surface hoar and buried suncrust is starting to taper off, and it is a lowered likelihood with large consequences scenario.  Some slides have been observed to step down to ground in thin snowpack areas.
Feb 10 shears tightening up in deep snow pack areas west of the divide. In shallower snowpack areas this interface still producing whoomphing and easy to moderate shears.
Slowly this layer is becoming less reactive, but it remains a concern. Field tests, particularly on southern aspects, confirms this. It's now down 80-120 cm and more likely triggered from thinner areas or by larger loads.
We are finding moderate to hard sudden collapse results on the Feb.10 interface. Thin and variable snowpack areas will be the easiest places to trigger this interface.
The Feb 10 layer will be touchier in the Eastern portion of the forecast area, less in the West. In addition to Feb 10, the Mar 13 layer, a suncrust on South aspects, can be found down 40-60cm. Snowpack tests on this layer produced moderate results.
The Feb 10 layer is touchier in the eastern portion of the forecast area, less in the west. In addition to Feb 10, the Mar 13 layer (suncrust on south aspects) can be found down 30-60cm. Snowpack tests on this layer have produced moderate results
The Feb 10 layer is touchier in the eastern portion of the forecast area, less in the west. In addition to Feb 10, the Mar 13 layer (suncrust on south aspects) can be found down 30-60cm. No shears were found on Mt Field today during snowpack tests.
There are two layers of concern in the upper meter of the snowpack that continue to produce shears in isolated areas and have a high degree of uncertainty. Be very mindful of this problem in areas that have not previously avalanched.
In areas of the park with a weaker snowpack we remain concerned about the Feb 10 layer of facets and surface hoar located in the middle of the snowpack. This layer remains, and caution is advised in specific areas such as the burns in Kootenay Park.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> In areas with uneven, shallower or weaker snowpacks, we remain concerned with the Feb 10th midpack layer of crust/facets/surface hoar (Kootenay burns) and the </span><a href="https://www.facebook.com/media/set/?set=vb.145133538869977&amp;type=2#!/photo.php?v=643191412397518&amp;set=vb.145133538869977&amp;type=2&amp;theater" target="_blank"><span class="s_9255B882">basal facet layer.</span></a><span class="s_AA239A9B"> Stick to lower angled well supported terrain in these areas.
In areas with uneven, shallower or weaker snowpacks, we remain concerned with the Feb 10th midpack layer of crust/facets/surface hoar, and the basal layer. Choose conservative, well supported terrain in these areas.
Although this problem still remains, triggering still remains possible. As time goes by it will become less likely that people will be able to trigger this layer.
Several avalanches have been observed deep in the snowpack over the past 24-hours. Avoid shallow areas where the snowpack is weakest. These avalanches are very unpredictable, so choose terrain that avoids steep, rocky slopes.
This problem represents a classic low likelihood high consequence situation. Areas that have not previously avalanched will be more susceptible to triggering.
15 to 30cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering, especially in areas where there is some wind loading and slab development. This is more of a problem in the western areas of the park
15 to 30cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering, especially in areas where there is some wind loading and slab development. This is more of a problem in the western areas of the park
10 to 25cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering in areas where there is some wind loading and slab development. This is more of a problem in the western areas of the park
We are getting lots of large whumphs on the Dec 18th layer consisting of facets/crust. This indicates the potential for skier triggering in steep terrain. Areas where the snow over this layer has stiffened into more of a slab are of the most concern.
Perpetual whumphing of the Dec 18th layer consisting of facets/crust exists. Skier triggered surface slabs have the potential to step down to the Dec18th layer.
This is a serious weak layer down 40 cm that seems to be either crust, facets or surface hoar depending on location.&nbsp; Snowpack tests continue to be in the moderate and sudden range for this layer, indication strong potential for human triggering.
This is a serious weak layer down 40 cm that seems to be either crust, facets or surface hoar depending on location. Snowpack tests continue to be in the moderate and sudden range for this layer, indication strong potential for human triggering.
This layer is more touchy in deeper snowpack areas where it is more deeply buried (30 - 50 cm down) and at lower elevations where it is a rain crust/ surface hoar combination.
In shallower snowpack areas this layer is facetting out. In deeper areas this layer remains more of a concern.
In shallower snowpack areas this layer is facetting out. In deeper areas this layer remains more of a concern.&nbsp;
Keep an eye on this layer as the new snow arrives. In shallower snowpack areas this layer has been facetting out. In deeper areas where a stronger slab exists above this layer it is more of a concern.
With fresh slabs forming above this weak layer down 25 to 50cm it is possible that it becomes active. In shallower snowpack areas this layer has been facetting out. In deeper areas where a stronger slab exists above this layer it is more of a concern
In shallower snowpack areas this layer has been facetting out however in deeper areas where a stronger slab exists above, this layer remains more of a concern.
The distribution of this layer is difficult to follow, but assume it exists in the snowpack and look for it in the upper 40 cm.
A 30-40cm soft slab sits over the Dec 3 surface hoar in many sheltered locations below 2000m. Continue to treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
The new snow is settling into a 15- 40 cm slab above the Jan. 6th surface hoar and facet layer. This layer is most reactive where there is a thicker slab and buried surface hoar (between 1500 and 2000m in Kootenay).
The new snow is settling into a 20-50 cm slab above the Jan. 6th surface hoar and facet layer. This layer is most reactive where there is a thicker slab and buried surface hoar (between 1500 and 2000m in Kootenay).
Close to 50 cm of settled snow now overlies the Jan 4 layer of surface hoar and facets. This layer is visible in snow profiles, and tests show moderate, sudden planar shears. Watch for this problem in open glades and slopes near and below treeline.
Close to 50 cm of settled snow now overlies the Jan 4 layer of surface hoar and facets. While crusts may hold things together below about 1900m be cautious above this where human triggering is likely and natural activity is quite possible. 
30-50 cm of settled snow overlies the Jan 6 layer of surface hoar and facets. This continues to be reactive to both human and explosive triggering with potential for failures to step down into deeper snowpack layers and result in large avalanches.
30-60 cm of settled snow overlies the Jan 6 layer of surface hoar and facets. This continues to be reactive to both human triggering with potential for failures to step down into deeper snowpack layers and result in large avalanches.
30-60 cm of snow overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
30-60 cm of snow overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
30-60 cm of snow overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but the potential for wide propagation remains.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but the potential for wide propagation remains.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
An average of 40-80 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
Expect this problem to produce avalanches on Tuesday, and avoid exposure to avalanche terrain as these will be large avalanches with potentially significant consequences.
These large avalanches have potentially significant consequences. Warm temperature coinciding with steep and shallow ares are a combination to avoid tomorrow.
Large avalanches are occurring daily right now. Best to avoid most avalanche start zones unless there is evidence of previous avalanches having occurred. Conditions are dangerous so be careful in your route selection.
Widespread natural and explosive triggered avalanche activity on this layer in the past few days. In thinner areas, avalanches are scrubbing down to ground. With the cooling temps, this should become less reactive, but is still worthy of respect.
Widespread natural &amp; explosive triggered avalanches on this layer in the past week. In thinner areas, avalanches are scrubbing down to ground. With the cooling temps, this should become less reactive, but is still a concern for skier triggering.
Numerous reports of avalanches triggered on the Jan 6 layer over the last 5 days (less reactive below treeline).  In thinner areas, isolated avalanches have been seen to scrub to ground.&nbsp; Less natural activity noted today due to cooler temperatures.
Numerous reports of avalanches triggered on the Jan 6 layer over the last 5 days (less reactive below treeline). In thinner areas, isolated avalanches have been seen to scrub to ground. Less natural activity noted today due to cooler temperatures.
50-100 cms of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 5 days. In thinner areas, isolated avalanches have scrubbed to ground.
50-100 cms of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 5 days show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
50-100 cms of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 5 days show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last week show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last week show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 24 hours show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches triggered on this Saturday. In thinner areas, many of these avalanches have scrubbed through the facets to the ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches have been triggered on this layer recently. In thin snow pack areas, many of these avalanches have stepped down to the ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches have been triggered on this layer in the last week. In thin snow pack areas, some of these avalanches have stepped down to the ground.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches have been triggered on this layer in the last week. In thin snow pack areas, some of these avalanches have stepped down to the ground.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S and W aspects, all with 50-100 cm overlying them. Dig, look and test these layers before committing to any solar slopes.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them. This problem is most significant in the south Kootenay region.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them. This problem is most significant in the south Kootenay region.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them. This problem is most significant in the south Kootenay region.
Avalanches on buried suncrusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried on S through E aspects, with 40-100 cm overlying them.
Avalanches on buried crusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Avalanches on buried crusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Avalanches on buried crusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Avalanches on buried crusts with facets have been seen on sun exposed slopes within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Avalanches on buried crusts with facets have been seen on sun exposed slopes within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
New snow and strong winds have created  wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time. 
New snow and strong winds have created wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time.
New snow and strong winds have created wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time.
Up to 30cm of recent new snow from last week sits on top of a layer of facets (Dec 19 layer). The interface between the new and old snow is poorly bonded, resulting in many recent avalanches.
Wind slabs up to 60cm+ from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. Some fresh snow overnight and strong winds are adding to this problem.
Wind slabs up to 60cm from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Wind slabs up to 60cm from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
60cm of new snow from the past week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
The Dec 19 facet interface is 30 to 100cm down. This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
The bottom of the snowpack is weak and facetted, and will remain this way for the foreseeable future. Right now there is not much of a cohesive slab overlying this weak foundation, but it is still advisable to avoid large avalanche start zones.
The bottom of the snowpack is weak and facetted, and will remain this way for the foreseeable future. In most areas there is not much of a cohesive slab overlying this weak foundation, but it is still advisable to avoid large avalanche start zones.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
Natural and human triggering has tapered off in recent days, but forecasters still have little confidence and feel there is a high degree of variability across the forecast region. Where winbslabs exist be especially cautious.
Natural and human triggering has tapered off in recent days, but forecasters still have little confidence and feel there is a high degree of variability across the forecast region. Where winbslabs exist be especially cautious.
A persistent facetted weakness can be found around a mid-pack crust. There is low likelihood of natural avalanches occurring on this layer but we are watching as each small system deposits more snow load.
A persistent facetted weakness can be found around a mid-pack crust.  An isolated size 3 avalanche on a steep Northerly large open slope in the Hilda Creek area likely ran on this layer.
A persistent facetted weakness can be found around a mid-pack crust.? An isolated size 3 avalanche on a steep Northerly large open slope in the Hilda Creek area likely ran on this layer.
A persistent facetted weakness can be found around a mid-pack crust. Saturday, an isolated size 3 slab avalanche on a steep Northerly slope in the Hilda Creek area likely ran on this layer.
A persistent facetted weakness can be found around a mid-pack crust. Saturday, an isolated size 3 slab avalanche on a steep Northerly slope in the Hilda Creek area likely ran on this layer. No other avalanches have been observed on this layer.
A persistent facetted weakness can be found around a mid-pack crust. Saturday, an isolated size 3 slab avalanche on a steep Northerly slope in the Hilda Creek area likely ran on this layer. No other avalanches have been observed recently.
A persistent facetted weakness can be found around a mid-pack crust.
A persistent facetted weakness can be found around a mid-pack crust.
A persistent facetted weakness can be found around a mid-pack crust.
A persistent facetted weakness can be found around a mid-pack crust.
A persistent facetted weakness can be found around a mid-pack crust.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and  the edges of these slabs.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and the edges of these slabs.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and the edges of these slabs.
The hard windslabs that dominate the alpine snowpack have bridged weakness below.  These slabs have not been reactive. It may be possible to trigger an avalanche on steep unsupported terrain from thin areas and the edges of these slabs.
The snowpack in the alpine and at tree line consists of multiple wind laminated layers.  How the terrain has influenced the formation and character of these layers on a given slope is the main question to keep in mind while traveling.   
There will be increasing load on the persistent slabs now buried by 15-20 cm on new snow.  There is a greater possibility that storm snow avalanches may be enough to trigger the persistent slab layer deeper in the snowpack.
Large triggers such as cornice fall has triggered this weakness. We expect to see large avalanches on steep slopes with warm temperatures rising into the alpine and intense solar radiation.
Large triggers such as cornice fall can triggered this weakness. Large avalanches on steep slopes are possible as warm temperatures are expected in the alpine and solar radiation will be intense.
Large triggers such as cornice fall can triggered this weakness on polar aspects. Large avalanches on steep south to west slopes are possible as warm temperatures are expected in the alpine and solar radiation will be intense.
Large triggers such as falling cornices can triggered this weakness on solar aspects. Large avalanches on steep south to west slopes are possible as warm temperatures are expected in the alpine and solar radiation will be intense.
4cm thick rain crust found below tree line and up to 2700ms. No new avalanches have been observed on this layer.
Observations are very limited leading to uncertainty for the potential to trigger this layer.
Observations are limited for this layer. If triggered, it has the potential to scrub to ground increasing the consequence.&nbsp; &nbsp;
Observations are limited on this layer leading to uncertainty for the potential to trigger. Basal facetting process continues to weaken base.
Observations are limited on this layer leading to uncertainty of it's triggering potential. Basal facetting process continues to weaken overall strength. Recent avalanches may indicate it is waking up slowly.
Soft slabs exist in wind loaded areas. The failure layer is believed to be a rain crust near the base of the snowpack. Failures on this layer quickly step to ground and have been observed up to 2,800 meters this week.
The base of the snowpack is weak and facetted. Above this the october rain crust represents a sliding layer. Failures when they occur can step to ground. This has been observed to 2,900m in the past 7 days.
Wind loaded terrain features with enough snow to ski on may have this weakness in the snowpack.
A small avalanche on a lee aspect may step down to this layer and could go to ground on the facets.
Initiating upper wind-slab layer has potential to step down deeper to this basal layer.
Even a small wind slab avalanche has the potential to step down to this layer and to release the facets to ground.
Any slope or terrain feature that was sheltered enough to hold snow in October could have this raincrust on it. Facets developing above and below this layer may cause even a small avalanche to step down to ground.
The persistent slab consists of an October 27 raincrust with facets developing above and below it. It is sporadic in distribution, but even a small avalanche could step down to ground.
A patchy rain crust continues to linger making stability suspect on features that hold early season snow.
: Normal;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">The Oct 27 raincrust has a sporadic distribution. An avalanche on this layer could still step down to ground and have severe consequences.</span><span class="s_AA239
Avalanche activity continues to be sporadic on this layer. Watch for continued loading in alpine features above ice climbs and skier terrain.
Recent slab formation overlies a persistent weak layer of surface hoar, facets and crusts found predominantly at treeline and below. This layer is going to become more reactive with the next pulse of snow which begins on Saturday night.
Touchy slabs have been found primarily on East facing terrain below ridge crests between 2000 and 2400m.  These slabs are sitting on a persistent weak layer of crust and facets and are stiffening up, increasing the likelihood of wide propagations.
The interface between rapidly settling storm snow and the previous surface is characterized by crust and facets and new slabs are touchy in specific terrain - particularly steep, lee aspects below ridge crests.
The interface between rapidly settling storm snow and the previous surface is characterized by crusts. facets and surface hoar. New slabs are touchy in specific terrain - particularly steep, lee aspects at treeline and sub alpine elevations.
The persistent slab interface is a combination of crusts, facets, and surface hoar overlying a solid midpack bridging weak basal facets. It will be large if triggered. Caution on steep lee treeline and subalpine aspects with variable snow depths.
This persistent weak layer consists of facets and surface hoar that were covered. It sits on a mixture of crusts and firm supportive snow. This seems to be of most concern at the Treeline and lower alpine elevations between 2000m and 2400m.
This persistent weak layer consists of facets and decomposing surface hoar under 30cm of surface snow. It sits on a mixture of crusts and firm snow. It is of most concern at treeline and subalpine zones between 2000-2400m.
The persistent slab overlies 2 main weaknesses that will not go away anytime soon. A decomposing surface hoar-surface facet layer 30cm down and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
The persistent slab is intermixed with 2 main weaknesses that will not go away anytime soon, the decomposing surface hoar-facet layer and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
The persistent slab is intermixed with 2 main weaknesses that will not go away anytime soon, the decomposing surface hoar-facet layer and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
We have seen very few avalanches from this layer in the past 2 weeks. A strong midpack , when present, prevents triggering from all but the largest loads. Where the snowpack is shallow triggering will be considerably easier.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The recent storm snow, redistributed by wind is now over loading the snowpack. Several skier remote avalanches were observed today.
The recent storm snow, redistributed by wind is now over loading the snowpack. A field team in the Icefields area yesterday remotely triggered several slab avalanches and experienced extensive whumphing at tree line elevations.
A field team in the Icefields area on Wednesday remotely triggered several slab avalanches and experienced extensive whumphing at tree line elevations. Care is needed as you navigate slopes in this elevation band.
Where slab overlies the February 10th facet layer very touchy conditions exist. We have found this to be most prevalent at tree line elevations where remote and skier triggered avalanches have been occurring in the last few days.
Where wind slabs overly the February 10th facet layer very touchy conditions exist. This is borne out by numerous incidents of skier accidental and remotely triggered avalanches in the last few days.
Where wind slabs overly the February 10th facet layer very touchy conditions exist at tree-line and is borne out by numerous avalanche incidents in the last few days. The frequency of slabs stepping down to a deeper layer has increased dramatically.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and crossloaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and crossloaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
The &quot;drought layer&quot; (Feb 10) has been quietly dormant. Expected snowfall this week could 'wake' this layer up. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Lee features continue to load and the potential exists to trigger these deep instabilities. Carefully evaluate your time spent under overhead hazard before committing to terrain.
he &quot;drought layer&quot; (Feb 10) has been dormant for over a week now. Warming temperatures and continued wind-loading could 'wake' this layer up.
This avalanche condition is quite uncertain and large slopes should be treated with caution. Especially those with recent wind loading or those that face the sun.
The &quot;drought layer&quot; (Feb 10) has been dormant for over a week now. Warming temperatures and continued wind-loading could 'wake' this layer up.
Although the Feb10 layer (down 60-90cm) has been dormant in the past several days, it remains a concern and has produced several large avalanches this week. Large triggers and shallow areas may still produce avalanches failing at this interface.
Although the Feb10 layer (down 60-90cm) has been dormant in the past several days, it remains a concern and has produced several large avalanches this week. Large triggers and shallow areas may still produce avalanches failing at this interface.
There is a fair bit of uncertainty associated with weak mid-pack layers.&nbsp; Although isolated, there have been numerous natural avalanches in the past 2 days that have failed in the mid-pack or on the ground.&nbsp;
This layer may be buried up to a meter below the surface in wind loaded areas. In such areas the upper snowpack may be providing bridging strength. Areas of shallow snowpack particularly adjacent to wind loaded slopes are of greatest concern.
Storm snow has evolved into a persistent slab mainly around  treeline. 
Storm snow has evolved into a persistent slab mainly around treeline. Widespread whumphing in open treeline areas was enough to keep our forecasting team on lower angle terrain without overhead exposure.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas.&nbsp; Propagation from&nbsp; whumphing is possible on steep unsupported slopes.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas. Propagation from whumphing is possible on steep unsupported slopes.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes.
Persistent slab mainly around treeline is showing some signs of consolidation with less extensive whumphing observed on yesterdays field trip.
Persistent slabs at treeline and sheltered sub-alpine slopes are starting to get overloaded by recent snow and wind loading. Two size 2 skier remote slab avalanches were triggered in the Nigel Basin today.
Some small pockets of surface hoar may still be present at and below treeline.
The weak layer of surface hoar and facets from December can still be found but are showing signs of settling out.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with new snow load.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with new snow load. A skier accidental size 2.5 occurred starting from low angle terrain (27 degrees) on a NE aspect at treeline.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with new snow load. A skier accidental size 2.5 occurred Saturday from low angle terrain (27 degrees) on a NE aspect at treeline.
Heavy snow sits on the December weak layer. Any additional load such as a small point release can step down to this weak layer. Once the slide is moving, it will step down further to ground from the weight of the snowpack.
Heavy snow sits on the December weak layer. Any additional load such as a small point release can step down to this weak layer. Once the slide is moving, it will step down further to ground from the weight of the snowpack.
Forecasters have had easy test results on this layer today.  The tricky thing about this layer is that it is not widespread but can be found in sheltered areas.
Forecasters have had easy test results on this layer recently. The tricky thing about this layer is that it is not widespread but can be found in sheltered areas.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices or from shallow areas by skiers. Explosive control work yielded many results at this interface early in the week.
The 1 meter of storm snow has transitioned into a persistent slab. This slab is sitting on a raincrust/surface hoar weakness.
These slabs are sitting on a surface hoar layer in sheltered areas. Triggering of these slabs is possible even in low angle terrain .
Deep soft slabs are sitting on this reactive layer. Triggering of these slabs is possible even in low angle terrain .
Forecasters are doubtful that cooler temperatures will improve this weakness in the short term.  Triggering of these slabs is possible even in low angle terrain .
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Forecasters will continue to monitor the break-down of this interface cautiously.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Forecasters will continue to monitor the break-down of this interface cautiously.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
The Dec3 interface down 50cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The Dec3 interface down 50cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The Dec3 interface down 60cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
30 cm of storm snow from Thursday continues to build into a slab overlying a weak facetted snowpack or decomposed surface hoar layer. It will continue to evolve the next few days.
30 cm of storm snow from Thursday continues to build into a slab overlying a weak facetted snowpack or decomposed surface hoar layer.
35cm of storm snow from Thursday has formed a slab overlying a weak facetted snowpack or decomposed surface hoar layer.
35cm of storm snow from Thursday has formed a slab overlying a weak facetted snowpack. Field teams are finding decomposed surface hoar and sudden planar test results in isolated locations at treeline. This is the key interface to assess.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams  have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
Previously formed slabs now comprise the upper and mid-pack in many locations. They can rest on weak facets.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been dormant lately, careful slope evaluation is essential. Be cautious of shallow areas with slab over facets.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been dormant lately, careful slope evaluation is essential. Be cautious of shallow areas with slab over facets.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been stubborn to trigger underfoot but, will trigger with a heavy load, like cornice failure.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could trigger with a cornice failure or from shallow spot.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could trigger with a cornice failure or from shallow spot.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Persistent weak layers of some combination of decomposed surface hoar, facets, and depth hoar in many locations. These layers have been stubborn to trigger underfoot but will be triggered by cornice failure or from shallow spot and release to ground.
This problem is very active in the Whistler/Portal Creek area with remotely triggered avalanches being reported on very low angle terrain.  The problem is also active in the Maligne area but is stubborn in the Icefields area.
This problem is very active in the Whistler/Portal Creek area with remotely triggered avalanches being reported on very low angle terrain. The problem is also active in the Maligne area but is stubborn in the Icefields area.
This problem is very active in the Whistler/Portal Creek area with remotely triggered avalanches being reported on very low angle terrain. The problem is also active in the Maligne area but is stubborn in the Icefields area.
This problem is very active in the Maligne and surrounding Jasper area with remotely triggered avalanches being reported on very low angle terrain. This problem is proving much less active in the Icefields area.
This problem is most active in the Maligne and surrounding Jasper area where the average snow pack is shallow. Remotely triggered avalanches reported on very low angle terrain. This problem is proving much less active in the Icefields area.
This problem is most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
This problem may still be a concern in the Whistler/Portal Creek area. It appears to be inactive in the Maligne and Icefields areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This problem may still be a concern in the Whistler/Portal Creek area. It appears to be inactive in the Maligne and Icefields areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This problem may still be a concern in the Whistler/Portal Creek area. It appears to be inactive in the Maligne and Icefields areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This problem is still a concern in the Whistler/Portal Creek area. This, along with most recent rain means this area will be in very poor shape for travel.&nbsp;
This problem is still a concern in the Whistler/Portal Creek area. This, along with most recent rain means this area will be in very poor shape for travel.
This problem is still most concerning and most active in the Whistler/Portal Creek area.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region and when triggered, always goes big.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
Found mainly on open lee slopes and cross-loaded gullies. At lower elevations use caution on classic trouble spots like moraine features and larger open slopes with convexities.
Found mainly on open lee slopes and cross-loaded gullies. At lower elevations use caution on classic trouble spots like moraine features and larger open slopes with convexities.
The Nov crust is down 40-90cm and is beginning to facet out, and loose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Nov crust is down 40-90cm and is beginning to facet out, and lose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Nov crust is down 40-90cm and is beginning to facet out, lose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Nov crust is down 40-90cm and is beginning to facet out, lose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Nov crust is down 40-90cm and is beginning to facet out, lose strength and cohesion. There has been recent activity on this layer and requires respect. Consequences would be severe if triggered.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
The depth of this crust is now highly variable, and may as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
The depth of this crust is now highly variable, and may as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
The depth of this crust is now highly variable, and may as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
Recent large avalanches have been reported on this layer as snow load increases.
This layer will weaken with the predicted cold weather.
This layer will weaken with the cold weather.
This layer will weaken with cold temperatures.
This layer will weaken with cold temperatures. Weak facets continue to develop above and below the November crust found 20-40cm above the ground.
It is less clear where this layer remains. Shallow areas are weakening and breaking down this layer by faceting with cold temps. Be diligent in your snowpack investigation.
The Jan 17 interface or deeper layers might be woken up with the forecasted heavy snowfall and would result in large avalanches.
The Jan 17 interface or deeper layers might be woken up with the forecasted heavy snowfall and would result in large avalanches.
Avalanches initiated within the storm snow were stepping down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Widespread shooting cracks and whumphing was noted by the forecasting team as this layer fails.&nbsp; Especially sensitive in the Portal Creek area.
The previous windslabs has evolved into a persistent slab buried under 5-10cm of new snow. It potentially overlies a buried surface hoar from Feb 10 but hard to locate. Be vigilant particularly in sheltered spots preserving the buried surface hoar.
Persistent slabs are buried under 5-10cm of new snow. It potentially overlies a buried surface hoar from Feb 10 but difficult to locate. Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
Persistent slabs are buried under 5-10cm of new snow. It potentially overlies a buried surface hoar from Feb 10 but difficult to locate. Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
Persistent slabs are buried under 10cm of snow. It potentially overlies a buried surface hoar from Feb 10 but it's difficult to locate. Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
Persistent slabs are buried under the light snow that has accumulated.&nbsp; Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
Persistent slabs are buried under the light snow that has accumulated. Be vigilant particularly in sheltered spots where buried surface hoar may exist.
Increased loading on this layer from the recent storm snow has produced a number of releases up to size 3. Triggering is mostly likely from shallower locations around rocky terrain.
Increased loading on this layer from the recent storm snow has produced a number of releases up to size 3. Triggering is mostly likely from shallower locations around rocky terrain.
Increased loading on this layer from the recent storm snow has produced a number of releases up to size 3. Triggering is mostly likely from shallower locations around rocky terrain.
45cm of storm snow from March 3 has evolved into a soft slab and melded in many locations to the midpack below. South TL aspects the new snow was found resting on a decomposing surface hoar layer on a crust about 30cm down. It tested unstable.
45cm of storm snow from March 3 has evolved into a soft slab and melded in many locations to the midpack below. South TL aspects the new snow was found resting on a decomposing surface hoar layer on a crust about 30cm down. It tested unstable.
Persistent mid-pack slab condition has been developing all season. Various wind and facet layers exist. Spatial variability exists with thick and thin snowpack areas.  </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Persistent mid-pack slab condition continuing to surprise, and not the good kind of surprise! Like triggering an unseen overhead feature; Surprise!
Persistent mid-pack slab condition continuing to surprise but not the good kind of surprise! Like triggering an unseen overhead feature; Surprise!
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
The January 4 surface hoar, sun crust, facet interface will likely become a persistent weak layer in the weeks to come.  Recent strong winds have already created harder wind slabs at and above treeline on this layer.
A persistent weak layer down 50 to 70cm is reactive to skier triggering.  Our observations suggest the most reactive locations are steep S/SW facing slopes and open glades. Strong south winds may have created harder wind slabs at and above treeline.
A persistent weak layer down 50 to 70cm is reactive to skier triggering. Our observations suggest the most reactive locations are steep S/SW facing slopes and open glades. Strong south winds may have created harder wind slabs at and above treeline.
A cohesive slab overlies a persistent weak layer. Variable distribution and composition makes this layer difficult to predict. Tests on this layer indicate it is skier triggerable and observations indicate it is most reactive on steep S'ly aspects.
A cohesive slab overlies a persistent weak layer. Variable distribution and composition makes this layer difficult to predict. Tests on this layer indicate it is skier triggerable and observations indicate it is most reactive on steep S'ly aspects.
A cohesive slab overlies the January 4 persistent weak layer. Variable distribution and composition makes this layer difficult to predict.  It is most reactive on steep solar aspects.  There have been two skier triggered slides on this layer.
The January 4 crust-facet interface (down 60 cm) remains a concern.  It is most problematic on steep S and W aspects.  The slab above this is becoming more cohesive, and skier triggering remains likely.
The January 4 crust-facet interface (down 60 cm) remains a concern.? It is most problematic on steep S and W aspects.? The slab above this is becoming more cohesive, and skier triggering remains likely.
The January 4 crust-facet interface (down 60 cm) remains a concern. It is most problematic on steep S and W aspects. The slab above this is becoming more cohesive, and skier triggering remains likely.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects and produced several skier triggered avalanches last week. Human triggering is still possible, or windslabs may step down to this layer.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects and produced several skier triggered avalanches last week. Human triggering is still possible, or windslabs may step down to this layer.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects and produced several skier triggered avalanches last week. Human triggering is still possible.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects.
A weak layer down around 50 cm remains a concern. It has been most reactive to rider triggering on steep slopes where a sun crust is present.
A weak layer down around 65-90 cm might still be reactive to skier triggering. No natural avalanches have been observed on this layer recently. New snow overnight may overload this layer, causing it to fail with the additional weight of a rider.
A weak layer down around 80-100 cm might still be reactive to skier triggering. No natural avalanches have been observed on this layer recently. New snow overnight may overload this layer, causing it to fail with the additional weight of a rider.
2 layers, down ~40 and ~80cm, exist in isolated areas (see forecast details). They have been reactive to ski cutting on steep unsupported features in Rogers Pass, and in the surrounding region caused several human triggered size 2 avalanches.
A touchy surface hoar layer is down 25-40cm. There have been human triggered avalanches on this layer daily. Avalanches are increasingly possible with new snow and rising winds today adding load, and mild temperatures making the slab more cohesive.
A touchy surface hoar layer is down 35-55cm. Human (even tree bomb) triggered avalanches have occurred daily. Avalanches are increasingly possible with new snow and rising winds today adding load, and mild temperatures making the slab more cohesive.
A touchy surface hoar layer is down ~50cm. Human (even tree bomb) triggered avalanches have occurred daily. Avalanches are increasingly possible with new snow load and mild temperatures making the slab more cohesive.
The Feb 12 PWL is becoming more reactive as it matures.&nbsp; Skier triggered and natural avalanches have been increasing on this layer, with RB scores of 2, whole block.&nbsp; It is most reactive on solar aspects between 17-1900m.
A &quot;persistent weak layer&quot; (Feb 12 SH) is now down 50-60 cm from the surface, and is sporadically reactive to skier triggering.  Wide propagations are possible, especially on sunny aspects where it sits on a sun crust, between 17-1900m.
A &quot;persistent weak layer&quot; (Feb 12 SH) is down 50-60 cm from the surface, and remains sporadically reactive to skier triggering.  Wide propagations are possible, especially on sunny aspects where it sits on a sun crust, between 17-1900m.
A weak layer is down 40-50cm. It is most likely to be skier-triggered around 17-1900m, avoid open slopes and convex rolls. On sunny aspects the weak layer can be touchy.  Natural avalanche activity will increase on this layer today with the new snow.   
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A weak layer is down 50-70cm. It is most likely to be skier-triggered around 17-1900m, avoid open slopes and convex rolls. On sunny aspects the weak layer can be touchy. See </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://avalancheinfo.net/Parks/Glacier/Images/2013-02-23%20Sz%202%20Sc.jpg" target="_blank"><span class="s_9255B882">image</span></a><span class="s_AA239A9B"> of skier-triggered avalanche yesterday on this layer at 1700m.
A buried surface hoar layer, down 40-50cm, reactive to skier triggering particularly where it sits on a crust on steep south aspects. The overlying slab is stiffening and will produce larger propagation avalanches when triggered.
More load over the surface hoar layer buried 40-55cm. This layer is reactive to rider triggering and remote triggering. The overlying slab will continue to produce avalanches with larger propagation and more consequence for the foreseeable future.
Surface hoar layer buried 40-55cm. This layer is reactive to rider triggering and remote triggering. The overlying slab will continue to produce avalanches with larger propagation and more consequence for the foreseeable future.
Surface hoar layer buried 40-55cm. This layer is reactive to rider triggering and remote triggering and has been seen to be most reactive where the surface hoar is sitting on a sun crust or firm layer in the snowpack (bed-surface).
Surface hoar layer buried 45-60cm. This layer is reactive to rider triggering and remote triggering and has been seen to be most reactive where the surface hoar is sitting on a sun crust or firm layer in the snowpack (bed-surface).
A weak surface hoar layer is now down ~85cm. This layer has been triggered by humans; remotely from 40m away, and capable of wide propagations up to 150m. Rapid loading or other avalanches may trigger this layer and produce very large avalanches.
A weak surface hoar layer is now down ~1m. This layer has been triggered by humans; remotely from 40m away, with propagations up to 150m wide. Rapid loading and other avalanches triggered this layer yesterday producing very large avalanches.
A weak surface hoar layer is now down ~1m. This layer has caused widespread avalanches: natural's up to size 4, and size 2.5 human triggered avalanches. In areas where it hasn't already avalanched it is very reactive, and has been remotely triggered.
A weak surface hoar layer is now down ~1m. This layer has caused widespread avalanches: natural's up to size 4, and size 2.5 human triggered avalanches. In areas where it hasn't already avalanched it is very reactive, and has been remotely triggered.
A weak surface hoar layer is now down ~1m. This layer has caused widespread avalanches: natural's up to size 4, and size 2.5 human triggered avalanches. In areas where it has not already avalanched it remains touchy, and has been remotely triggered.
The Feb 12 PWL continues to be a concern. During the last storm cycle several avalanches &quot;stepped&quot; down to this layer.  It will remain a problem for some time.
The Feb 12 PWL continues to be a concern. During the last storm cycle several avalanches &quot;stepped&quot; down to this layer. It will remain a problem for some time.
The Feb 12 PWL continues to be a concern. During the last storm cycle several avalanches &quot;stepped&quot; down to this layer. It will remain a problem for some time.
The surface hoar/crust layer from February is becoming less reactive; a function of it now being 1-1.5m deep and having avalanched in many areas. It is most likely to be triggered on solar aspects or by heavy triggers, resulting in large avalanches.
The surface hoar/crust layer from February is most likely to be triggered on solar aspects from shallow areas or from large triggers such as cornice falls resulting in large avalanches.
The surface hoar/crust layer from February is most likely to be triggered on solar aspects from shallow areas or from large triggers such as cornice falls resulting in large avalanches.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
It will likely take a large trigger, like a cornice fall or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. If triggered, however, the resulting avalanche would be very large and destructive.
It will likely take a large trigger, like a cornice fall or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. If triggered, however, the resulting avalanche would be very large and destructive.
It will likely take a large trigger, like a cornice or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
It will likely take a large trigger, like a cornice or another avalanche to trigger the surface hoar/crust layer from February 12, now down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
It will likely take a large trigger, like a cornice or another avalanche to trigger the surface hoar/crust layer from February 12, now down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
It will likely take a large trigger, like a cornice or another avalanche to trigger the  Feb 12 and March 11 PWL's, now down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
Two weak layers are buried down 1-1.5m.  Though unlikely, a large trigger like a cornice or another avalanche may cause these weak layers to fail. 
Two weak layers are buried down 1-1.5m. Though unlikely, a large trigger like a cornice or another avalanche may cause these weak layers to fail.
Slopes receiving direct sun become more reactive during the day with warming. This is especially likely on steep solar aspects where buried crusts exist. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Slopes receiving direct sun become more reactive during the day with warming. This is especially likely on steep solar aspects where buried crusts exist. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
PWL's are becoming stubborn, but should not be discounted.  Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist, but northerly aspects are not immune.
PWL's are becoming stubborn, but should not be discounted.  Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist, but northerly aspects are not immune.
Buried weak layers are stubborn to fail, but should not be discounted. Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist.
Buried weak layers are stubborn to fail, but should not be discounted. Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist.
Weak shallow areas are most sensitive.  The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering. 
Weak shallow areas are most sensitive.  The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering.
Weak shallow areas are most sensitive. The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering.
Weak shallow areas are most sensitive. The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering.
Infrequent large avalanches have occurred on deeper instabilities. Shallow, rocky areas where the snowpack is thin and weak are most likely where they will be triggered.
Infrequent large avalanches have occurred on deeper instabilities. Shallow, rocky areas where the snowpack is thin and weak are most likely where they will be triggered.
A surface hoar layer buried down 50-110cm at the higher elevations is within the range of rider triggering.
A surface hoar layer down 60-120cm will have large consequences if triggered by a rider. Avoid shallow snowpack areas where triggering this layer is more likely.
A surface hoar layer down 60-110cm is in the range of rider triggering or can be triggered by the weight of smaller avalanches . Avoid shallow snowpack areas where triggering this layer is more likely.
The surface hoar buried earlier this month is slowly decomposing, but could be reawakened by surface slabs overloading it.
A variety of weak surfaces, including widespread surface hoar and sun crust on steep solar aspects, make this persistent slab tricky. It may be stubborn to trigger but recent avalanches on this layer have been large and propagated widely.
A layer of concern exists down 30-40 which consists of widespread surface hoar and sun crust on steep solar aspects. It may be stubborn to trigger but recent avalanches on this layer have been large and propagated widely.
A weak layer is buried down 30-40 cm. On steep solar aspects it will be marked by a sun crust. Large avalanches have occurred on this layer in the last week.
The surface hoar layer down 50-100cm remains a concern. Triggering this layer is most likely in and around shallow snowpack areas.
The surface hoar layer from mid November is buried down 60-110cm. Triggering this layer is most likely in and around shallow snowpack areas with large consequences.
The surface hoar layer from early November is buried 60-100cm below the surface. It is most likely triggered in shallow snowpack areas. If it does start to move, expect a large avalanche with nasty consequences.
The early November surface hoar still lingers near the base of the snowpack. It may be triggered from areas with a shallow snowpack. If it does trigger, it could bring a large slide with it.
A weak layer buried in early November is present at the bottom of the snowpack. If you are able to trigger the weak layer, a large consequence avalanche will result.
The storm has rapidly loaded slopes and may overwhelm persistent weak layers buried deeper in the snowpack. Very large avalanches will result if these layers are triggered.
Buried surface hoar down between 60-80cm with a recent significant snow load should remain a concern for rider triggering.
Buried surface hoar down between 80 to 110cm with a recent significant snow load should remain a concern for rider triggering. These layers may also be triggered by other avalanches, producing very large avalanches.
The recent snow has tightened up into a slab. It sits on various weak crystals, like facets or surface hoar, that may be triggered by skiers. If triggered, avalanches may step down to deeper surface hoar layers resulting in very large avalanches.
The recent snow has tightened into a slab. It sits on various weak crystals, like surface hoar and facets, that can be triggered by people. These avalanches may step down to deeper surface hoar layers, resulting in large avalanches.
A weak layer is buried down around 80 cm.&nbsp; If triggered, a large, high consequence avalanche will result. Carefully evaluate big terrain features by digging and testing adjacent, safe slopes.
A weak layer is buried down 60 to 90 cm. If triggered, a large high consequence avalanche will result. Carefully evaluate big terrain features by digging and testing adjacent, safe slopes.
2 weak layers exist in the snowpack, these are down between 70 and 110cm. They could become reactive with this additional snow load having very large consequences if triggered.
2 weak layers exist in the snowpack, these are getting deeper as snow amounts increase. They are down between 70 and 120cm and will have devastating consequences if triggered.
The interface between the December snow and the facetted November snow, down ~80cm is the biggest concern. Although this interface is becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Persistent weak layers down ~80cm (facets), and down ~115cm (surface hoar) continue to be reactive in specific locations. Although these interfaces are becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Persistent weak layers down ~80cm (facets), and down ~115cm (surface hoar) continue to be reactive in specific locations. Although these interfaces are becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Weak layers are buried down 80 to 100 cm. In a shallow snowpack where the weak layer is well-preserved, a skier could fail these layers.
The 2 buried weak layers down 70 to 110cm are still producing results in our snowpack tests. Caution around shallow snow pack areas where triggering these layers is most likely.
2 buried weak layers down 70 to 110cm remain a concern for riders. Consequences would be large if triggered which is more likely from shallow snowpack areas.
The presence of buried surface hoar remains a concern for backcountry riders. The potential for a large avalanche on this layer still exists.
The presence of a deep surface-hoar weakness remains a concern for backcountry travelers. It will likely take a large load to trigger it, like a cornice or someone who ate too many perogies over Christmas.
A deep persistent weakness lingers, down roughly 120cm. It will take a large trigger to initiate this layer, but if it starts to move, propagation would likely be wide and deep, creating a larger avalanche.
The heavy trigger may have arrived with this latest dump. Large avalanches are occurring, and may be stepping-down to this deeper layer.
The persistent weak layers are now fairly deep in the snowpack. They will&nbsp; likely need a sizeable trigger, like an avalanche or a large chunk of cornice falling. They may be triggered from thin snowpack areas by a lighter trigger, like you.
The current rapid loading event could reawaken the deep slab that has been sleeping for the past week.
The November persistent weak layer is more likely to be triggered in times of heavy loading such as these with storm snow avalanches stepping down to this layer.
The November surface hoar layer can still be triggered by large triggers such as avalanches or cornice fall. There have been reports of backcountry operations seeing avalanches failing on this layer in the region.
The recent avalanche cycle showed the reactivity of the snowpack to rapid loading and its capability to produce large avalanches. Until the snowpack adjusts to the new load these layers may be reactive. Be cautious in areas that have not avalanched.
The recent avalanche cycle showed the reactivity of the snowpack to rapid loading and its capability to produce large avalanches. Likely triggers are cornices failing and other avalanches stepping down. Be cautious in areas that have not avalanched.
Be cautious in areas that have not avalanched. The recent avalanche cycle showed the reactivity of the snowpack to rapid loading and its capability to produce very large avalanches. Cornices could be the large trigger to break down to the deep layers
A weak layer buried down over 2 m will take a large trigger to fail. Limit your exposure to cornices.  A cornice fall to could be just the right trigger to fail this weak layer.
A weak layer buried down over 2 m will require a large trigger to fail.&nbsp; Limit your exposure to cornices.&nbsp; A cornice fall could be just the right trigger to fail this weak layer.
The November persistent weak layer will need a large load to be triggered. Its distribution is waning but still lingers in isolated spots.
The November persistent weak layer will need a large load to be triggered (i.e. cornice fall). Its distribution is waning but sill lingers in isolated spots.
The November persistent weak layer will need a large load, like a cornice, to be triggered. The isolated nature of its distribution makes it hard to forecast for this layer.
The November persistent weak layer will need a large load to trigger it, like a cornice. The isolated nature of its distribution makes it hard to forecast for this layer.
The November persistent weak layer will likely need a large load to trigger it, like a cornice. This is the classic low probability-high consequence problem. It's patchy distribution makes it hard to forecast, but if it wakes up watch out!
This layer has spotty distribution and will need a large load to trigger or can potentially be triggered from thin snowpack areas.
This layer has spotty distribution and will need a large load to trigger or can potentially be triggered from thin snowpack areas
This problem is becoming increasingly challenging. The clues of instability, like cracking and whumphing are tapering off, but tests and continued avalanches indicate that this thick slab is triggerable and will produce very large avalanches.
A strong slab overlies a very weak layer buried down 1-1.5m. The snowpack now demands your respect, if you trigger this layer a large, high consequence avalanche will result.&nbsp; Use caution in shallow snowpacks, where triggering is more likely.
A strong slab overlies a very weak layer buried down 1-1.5m. The snowpack now demands your respect, if you trigger this layer a large, high consequence avalanche will result.&nbsp; Use caution in shallow snowpacks, where triggering is more likely.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">The slab overtop the weak layers down 1-1.5m continues to settle and become more cohesive. This problem will take a while to heal and requires good terrain management. Be particularly weary of open unsupported slopes and convex rolls below tree line.
The 1-1.5m slab over the weak layers continues to settle and become more cohesive. This problem will take a while to heal and requires good terrain management. Be wary of open, unsupported slopes and convex rolls, particularly at tree-line and below.
The 1-1.5m slab overlying the Feb 10th weak layer is slowly bonding to this interface, but is still reactive in tests. This problem requires good terrain management, such as avoiding large convexities and sticking to supported features.
A weak, persistent layer is buried under a thick slab. This layer is becoming more difficult to trigger, but if triggered will propagate widely producing a very large avalanche. Choosing appropriate terrain is key in managing this problem.
As this weak layer, buried down around 1 m, gains strength human triggered avalanches are still possible. Areas of concern are open, unsupported slopes, convex terrain and thin snowpack areas.
As this weak layer, buried down around 1 m, gains strength human triggered avalanches are still possible. Areas of concern are open, unsupported slopes, convex terrain and thin snowpack areas.
The sun crust/surface hoar layer down 1-1.5m is still producing hard sudden results in snowpack tests. This indicates that the layer is difficult to trigger but will propagate widely if it does.
The suncrust/surface hoar layer down 1-1.4m is still producing hard, sudden results in snowpack tests. This indicates it is stubborn to trigger, but if initiated, it will propagate widely, producing large avalanches.
Lingering deep (1-1.4m) in the snowpack, the surface hoar/facet/crust sandwich continues to produce hard, sudden results in tests. If a large enough trigger gets this layer to fail, avalanches will be very large.
The facet/crust &quot;sandwich&quot; is buried 120-150cm below the surface now. It is still producing hard, sudden results in tests, indicating that it can will propagate if a large enough trigger hits it. Avalanches digging into this layer will be large!
This last storm, and the forecast dump of snow this weekend, may wake a weak persistent layer up. This layer, buried ~1.5m deep, is still reactive in snowpack tests and if triggered will produce very large and destructive avalanches.
A deep weak layer buried at the end of January is down around 1.5 m. Although we have not observed any recent skier-triggering of this layer, artillery control triggered this layer on the west side of the park, releasing a size 3.5.
A deep weak layer buried at the end of January is down 1.8 to 2 m.&nbsp; Smaller avalanches could step down and trigger as large, high consequence avalanche on this layer.
A sun crust down ~1m is well within the range of human triggering on south and west aspects. The February surface hoar/crust layer down ~1.5-2m which can reawaken with a heavy trigger such as a large cornice release.
2 buried weak layers have been reactive this week. Down ~1m, is a sun crust on south and west aspects. The other is the other is Feb. surface hoar/crust layer down ~1.5m-2m which still shows wide propagation potential in snowpack tests.
There are two layers of concern. The first is a sun crust on S-SW slopes, buried ~1m deep. The second is the Feb 10 surface hoar/facet complex, down 1.5-2m. Both exhibit sudden failures, meaning there is potential for wide propagation.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The Mar 2 and Feb 10 layers are buried 1m and 1.5-2m respectively. Test results are still exhibiting sudden planar results in the hard range, meaning a deep slab could </span><a href="https://www.facebook.com/photo.php?v=637161176333875" target="_blank"><span class="s_9255B882">propagate widely.</span></a><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We are expecting over 50cm of snow this weekend, with strong westerly winds. This will rapidly load the persistent weak layer down 1.5-2m. This layer continues to be </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://avalancheinfo.net/Images/BLong-8436.jpg" target="_blank"><span class="s_9255B882">reactive and surprise people</span></a><span class="s_AA239A9B"> throughout the region, producing impressive avalanches.
This sudden heavy snow load is likely to reawaken the deeper persistent weak layers creating very large avalanches. Avoid crossing avalanche paths until the storm ends and temperatures cool down.
Down around 1-1.25m is a buried crust from early March. Backcountry users have been reporting whoomphs and remotely triggering this layer prior to this latest storm. Extra caution on steep south and west slopes where the crust was well formed.
A weak layer from early March within the range of rider triggering may catch you by surprise. Triggering this layer is more likely on steep south and west aspects where the crust had a chance to fully form.
The early March crusts are buried by over a metre of snow, but are still triggerable by people. They are more likely to fail on steeper S and W aspects.
This layer is patchy which makes it difficult to predict. It is likely to be most reactive on solar aspects where it is comprised of a sun crust with surface hoar. If triggered it has properties and is deep enough to result in a large avalanche.
This layer is deep enough to cause a large avalanche and shallow enough to be triggered by people, a dangerous combination. It's been most reactive on solar aspects where the crust is thickest and most likely to be triggered from shallow snow areas.
Reports of whoomphing and natural activity observed on this layer yesterday indicate it's volatility. This layer is deep enough to cause a large avalanche and shallow enough to be human triggered, a dangerous combination.
Snowpack tests yesterday show the Mar 2 layer down ~1m to still be reactive with large consequences if triggered. Shallow snowpack areas, like slopes that have lots of rocks poking out, seem to be the most likely areas for this to happen.
The early March weak layer down ~1m is reactive in snowpack tests with hard sudden results. We still see sporadic large avalanche events that fail on this layer. Choose supported slopes that have uniform snow cover.
The early March weak layer is still reactive with hard, sudden planar results in tests. Sporadic large avalanche events are still occurring on this layer, so heads-up with the new loading overnight. Stick to supported features today.
Weak layers from early March, now buried a meter deep, are still reactive in tests. They are most likely to be triggered on solar aspects where sun crusts exist. Smaller avalanches may step down to these layers, resulting in a big avalanche.
Weak layers from early March, now buried a meter deep, are still reactive in tests. They are most likely to be triggered on solar aspects where sun crusts exist. Smaller avalanches may step down to these layers, resulting in a big avalanche.
A weak layer down 20-30 cm is still reactive to skier-triggering. Use caution on unsupported features and convex terrain. Watch for changing conditions as temperatures warm up today and surface crusts deteriorate.
Many weak layers are buried within the snowpack in the upper 2m. These are all deep enough to cause large avalanches that will inflict significant damage. Shallow areas and day time warming are most likely to trigger them.
The sun will get deep into the snowpack today and could reawaken one of the many buried weak layers. Avoid slopes where rocks are evident on the surface as they are likely to attract more heat to trigger those layers.
There are numerous sliding layers buried in the upper 1-1.5m of the snowpack. If we see any strong sunshine today, there could be avalanches stepping down to these layers.
The upper 1-1.5m of the snowpack has numerous sun and temperature crusts within it. These may become sliding layers with day-time warming and the possibility of a strong April sun popping onto the slopes.
Be aware that small avalanches have the ability to trigger larger step down avalanches.
Many crusts on solar aspects are buried within the 1m range. At this depth they can be triggered by humans. Avoid shallow snowpack areas where it is most likely to initiate an avalanche on this layer.
The upper snowpack consists of many buried crusts on solar aspects. Triggering these layers is most likely from slopes where the snowpack is shallow and/or if there is strong solar radiation even if this is for brief moments.
The deeper instabilities that exist in our snowpack can reawaken with the increase in temperatures or added weight of snow/rain. Avoid those shallow snowpack areas where triggering these layers is most likely.
We may see the deeper instabilities reawaken with the warm temperatures, and possibly rain, moving into the snowpack. Try to avoid shallow, thin areas where a person could trigger a deeper weakness.
Be aware that step down avalanches are possible if storm slabs or wind slabs are triggered in wind loaded areas.
The large size 3.5 from Moccasin Flats 36 hours ago shows the persistent slabs have not gone away. Larger triggers, like cornices or surface avalanches, may step down to deeper layers.
Without a good refreeze, there is less structure to the snowpack to prevent it from stepping down into the lower persistent weaknesses. The large size 3.5 from Moccasin Flats 2 days ago illustrates the potential destructive force lingering out there.
Weak layers buried deeply in the snowpack are still releasing naturally and producing avalanches up to size 3.5.  Warm temperatures and solar inputs elevate this hazard. Large, heavy triggers like cornice falls could trigger a large avalanche.
Deeper persistent layers will require a large trigger to initiate, or a couple of people hitting a thin, weak spot in the snowpack.&nbsp;
2 weak layers within our snowpack, down ~1m and ~1.2m that are producing tests results to be concerned about. Whoomphing and cracking may not be as prevalent due to the depth of the layer but if triggered the slab is likely to propagate.
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. As temperatures rise the likelihood of triggering will increase and they are capable of producing very large avalanches. Be especially cautious on planar open slopes.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. They are capable of producing very large avalanches and may be triggered by skiers. As temperatures warm over the next few days the likelihood of triggering will increase.
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. They are capable of producing very large avalanches and may be triggered by skiers. Trigger points include steep alpine terrain, thin areas, and unsupported open slopes.
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. They are capable of producing very large avalanches and may be triggered by skiers. Trigger points include steep alpine terrain, thin areas, and unsupported open slopes.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.&nbsp; Once initiated avalanches triggered in the storm snow may step down to the deep persistent weak layers.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Persistent weak layers that were very reactive earlier this season are expected to wake up again with the rapid loading that is occurring. These layers are capable of wide propagations and producing very large and destructive avalanches.
Persistent weak layers that were very reactive earlier this season are expected to wake up again with the rapid loading that is occurring. These layers are capable of wide propagations and producing very large and destructive avalanches.
Continued warm temperatures and rain at lower elevations are ideal to wake up buried persistent weak layers capable of wide propagations and producing very large and destructive avalanches.
Big triggers like a cornice fall is capable of initiating this layer which would produce a very large avalanche as it would encompass the entire snowpack. Watch your exposure to overhead hazard like cornices when the sun comes out.
This layer is still failing with big triggers. A cornice fall in steep terrain is capable of triggering this instability and causing a large avalanche. Watch your exposure to overhead hazard like cornices.
There is a weakness at the bottom of the snowpack in some areas throughout the Park from the November crust.  Although it is difficult to trigger it should not be discounted. Large loads, like a cornice fall or triggering from a thin spot might do it
Weakness at the bottom of the snowpack in some areas throughout the Park from the November crust.&nbsp; Thin snowpack areas on a large alpine slopes are most suspect to release this layer. It is difficult to trigger but will have large consequences.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
Rider triggered and remote avalanches are happening daily on a widespread surface hoar layer down ~50cm. The overlying slab has gained enough strength to propagate widely which means bigger consequences. This problem will persist for a while.
A touchy surface hoar layer continues to be reactive. Avalanches continue to be triggered, even in areas that have been heavily traveled. Some areas offer no clues of instability, but the potential for large avalanches exist.
A touchy surface hoar layer continues to be reactive. Avalanches continue to be triggered, even in areas that have been heavily traveled. Some areas offer no clues of instability, but the potential for large avalanches exist.
The December 17th surface hoar layer is still reactive.  Avalanches continue to be triggered even in locations previously skied. Some areas offer few clues of the instability but the potential for large avalanches continues.
The December 17th surface hoar layer is still reactive. Avalanches continue to be triggered even in locations previously skied. Some areas offer few clues of the instability but the potential for large avalanches continues.
The Dec17th surface hoar is still reactive, with most events at treeline. A size 2 skier-controlled avalanche released on this layer yesterday. Buried surface hoar requires careful decision making, especially as more new snow continues to fall.
The Dec17th surface hoar is still reactive, particularly at treeline. As new snow continues to fall the consequences of an avalanche on this layer increase, careful decision making is still necessary.
The Dec17 surface hoar is most reactive at treeline. As snow load continues the consequences of an avalanche on this layer increase, careful decision making is still necessary. We suspect yesterdays Teddy Bear Trees avalanche to be on this layer.
The December 17th surface hoar layer is still a real concern in the snowpack.  The significant storm snow load should be increasing the probability of triggering this deeper weak layer.  This layer is most prevalent at treeline elevations.
The December 17th layer produced our larger controlled slides yesterday.  Slides initiating in the storm snow have a good probability of overloading this layer as they gain volume.  This layer is most prevalent at treeline elevations.
The Dec 17 instability is still active. Yesterday a field team triggered a sz 1.5 on a convex roll at treeline that had previously released and since reloaded. This layer is widespread at treeline and should not be forgotten during decision making.
The Dec 17 instability is still active and can be triggered by human loads on convex rolls and steep terrain. The surface hoar sits on a thick crust, providing a bed surface for larger avalanches. This layer is widespread at treeline.
The Dec 17 instability is still active and can be triggered by snow riders on convex rolls and steep terrain. The surface hoar sits on a thick crust, providing a bed surface for larger avalanches. This layer is widespread at treeline.
The Dec 17 instability remains our primary concern. This layer is still active and can be triggered by snow riders in areas where it has not previously avalanche. Likelihood of triggering has decreased but propagation and consequences have increased.
The Dec 17 surface hoar is still a major concern. It has become spotty, but is still reactive in areas where it has not already avalanched. This makes it harder to predict but it is possible to trigger large avalanches where it exists.
The Dec 17 surface hoar is still a major concern. It has become spotty, but is still reactive in areas where it has not already avalanched. This makes it harder to predict but it is possible to trigger large avalanches where it exists.
The December 17th surface hoar layer is still a real concern. This layer is widespread at treeline and more spotty at alpine elevations. The December 17th could still be reactive in locations where it has yet to avalanche.
The December 17th surface hoar layer is still a real concern. This layer is widespread at treeline and more spotty at alpine elevations. The surface hoar sits on a thick crust complex which provides a firm failure plane for avalanches.
The December 17th surface hoar layer is still a real concern. This layer is widespread at treeline and more spotty at alpine elevations. The surface hoar sits on a thick crust complex which provides a firm failure plane for avalanches.
The December 17th surface hoar layer is still a factor to consider in our snowpack. This layer is widespread at treeline, more spotty at alpine elevations and sits on a thick crust complex which provides a firm failure plane for avalanches.
The new snow load or shallower avalanches could reawaken the Dec 17 surface hoar layer down 90-130cm. This layer is widespread at treeline, more spotty at alpine elevations and sits on a thick crust complex.
The December 17 layer may reawaken after being overloaded by slides initiating on the January 15 surface hoar layer. This layer is widespread at treeline and spotty at alpine elevations.
A 60cm+ thick cohesive slab now overlies a very touchy surface hoar layer. Tests indicate that it is likely to propagate if triggered, and avalanches have been remotely triggered from up to 300m away.
A 60cm+ thick cohesive slab now overlies a touchy surface hoar layer. Tests indicate that it may be triggered by light loads (ie you) and likely to propagate widely as the slab stiffens. Avalanches have been remotely triggered from up to 300m away.
A 60cm+ thick cohesive slab now overlies a touchy surface hoar layer. Tests indicate that it may be triggered by human loads and likely to propagate widely as the slab stiffens. Avalanches have been remotely triggered from up to 300m away.
Although this surface hoar layer is now buried 70-100cm deep, it will be easily triggered today with addition of the new snow load. Stability tests show that this layer has good propagation potential, making large avalanches likely.
Mid January surface hoar layer is now buried 60-100cm deep. This layer is likely to become more reactive with the current warm conditions and rain we are receiving. 
Natural and artillery triggered avalanches continue to fail on the Jan.15 surface hoar layer, now buried 60-100cm deep. This layer continues to propagate widely into very large avalanches. Avalanches may step down to a deeper layer from mid Dec.
Recent avalanches have been failing on the Jan.15 surface hoar layer, now buried 60-100cm deep. Some avalanches have stepped down to a deeper layer from mid Dec.
Jan 15 surface hoar layer is buried 60-100cm deep. This interface remains reactive due to large, poorly bonded surface hoar crystals.  Avalanches from large triggers such as cornice fall might step down to a deeper layer from Dec 17.
Jan 15 layer is buried 60-100cm deep. This layer remains a concern due to large, poorly bonded surface hoar crystals.  As snow continues to settle, this layer will require larger triggers to initiate. Cornice failures could step down to deep layers.
The mid January surface hoar layer is buried 60-100cm deep.&nbsp; Getting this layer to fail will be difficult but triggering it from shallow areas or from heavy loads such as a cornice fall remains possible.
The mid January surface hoar layer is buried 60-100cm deep. Getting this layer to fail will be difficult but triggering it from shallow areas or from heavy loads such as a cornice fall remains possible.
The January 15 surface hoar layer is down 70-110cm.  Large triggers will be required to wake this layer however it remains possible in shallow snowpack areas or from cornice fall.
The January 15 surface hoar layer is down 70-110cm. Large triggers, like a cornice fall or other avalanches, are likely required to trigger this layer. Rapid loading forecast by Friday may reactivate this layer.
The January 15 surface hoar layer buried down 70-110cm is still reactive in many areas. Rapid loading over the next few days may overload it, or storm slab avalanches may step down to this layer.
Rapid loading and warm temperatures are the types of conditions that can re-awaken buried weak layers. Storm slab avalanches may step down to these  layer as well.
Recent intense precipitation and warm temperatures have the ability to reawaken deeper layers. Storm slabs avalanches may step down and propagate on these deep instabilities.
Recent intense precipitation and warm temperatures have the ability to reawaken deeper layers. Storm slabs avalanches may step down and propagate on these deep instabilities.
Persistent weak layers within the top 150cm of the snowpack should not be discounted just yet. Storm slabs avalanches may step down and propagate on these deep instabilities.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten. They continue to be reactive, and produce very large avalanches. Storm slabs avalanches may step down and propagate on these deep instabilities.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten. They continue to be reactive, and produce very large avalanches. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten, especially while temperatures remain warm. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten, especially while temperatures remain warm. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten, especially while temperatures remain warm. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
We have persistent weak layers down between ~1 to 1.5m. Large triggers such as a cornice failure or triggering from shallow areas may release avalanches these layers.
We have persistent weak layers down between ~1 to 1.5m. A large load such as a cornice failure will be needed to trigger these layers. Alternatively humans may be able to trigger them from shallow areas.
We have persistent weak layers down between ~1 to 1.5m. A large load such as a cornice failure will be needed to trigger these layers. Alternatively humans may be able to trigger them from shallow areas.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. If triggered these layers continue to propagate widely.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers continue to propagate widely.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers continue to propagate widely.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers may propagate widely.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers may propagate widely.
Deep persistent weak layers will need a large load such as a cornice fall or another avalanche to be triggered. A light load may be able to trigger them from shallow areas. Heads up when traveling on slopes threatened by cornices above.
There are several weak layers in the snowpack that are now difficult to trigger but result in very large avalanches when they do fail. Strong solar radiation or a large cornice failure are possible triggers.
There are several weak layers in the snowpack that are now difficult to trigger but result in very large avalanches when they do fail.  Strong solar radiation or a large cornice failure are possible triggers.
There are several weak layers in the snowpack that are now difficult to trigger but result in very large avalanches when they do fail. Strong solar radiation or a large cornice failure are possible triggers.
There are several weak layers in the snowpack that are now difficult to trigger but&nbsp; may result in large avalanches if they do fail. Strong solar radiation or a large cornice failures are possible triggers.
There are a number of weak layers in the snowpack that are hard to trigger but could result in large avalanches if they fail. Large cornice fall or prolonged strong solar radiation are possible triggers.
Deep instabilities in the snowpack have been dormant in recent weeks but may become reactive. The bridging properties of near surface crusts weaken as the snowpack warms. New snow tonight will make persistent slabs a key problem for the weekend.
Deep instabilities in the snowpack have been dormant in recent weeks but may become reactive. The bridging properties of near surface crusts weaken as the snowpack warms. New snow today will make persistent slabs a key problem.
A multitude of crusts are buried within the top meter of the snowpack. These may become reactive with the new load we received or with solar radiation. The bridging properties of near surface crusts weaken as the snowpack warms.
A multitude of crusts and a surface hoar layer are buried within the top meter of the snowpack. These may become reactive with solar radiation as the bridging properties of near surface crusts weaken as the snowpack warms.
The upper snowpack is complex, with a multitude of crusts, weak facetted layers, and surface hoar. Solar radiation weakens surface crusts and may make these layers in the top 60cm more reactive. Large slab avalanches have occurred on these layers.
The upper snowpack is complex, with a multitude of crusts, weak facetted layers, and surface hoar. Large slab avalanches continue to sporadically occur on these layers. Cornices are large and fragile and if they fail provide a large trigger.
The upper snowpack is complex, with a multitude of crusts, weak facetted layers, and surface hoar. Large slab avalanches continue to sporadically occur on these layers. Cornices are large and fragile and if they fail provide a large trigger.
The upper snowpack is complex with a multitude of crusts, weak facetted layers, and surface hoar. Large slab avalanches continue to sporadically occur on these layers. Cornices are large and fragile and if they fail provide a large trigger.
The upper snowpack is complex with a multitude of crusts, weak facetted layers, and surface hoar. There have been reports of skier triggered slab avalanches failing down 30-60cm on these crusts from neighboring areas.
The upper snowpack is complex with a multitude of crusts, weak facetted layers, and surface hoar. There have been reports of skier triggered slab avalanches failing down 30-60cm on these crusts from neighboring areas.
Persistent weak layers down 50-100cm have been triggered recently by light loads, such as skiers or sluffing off of cliffs. These layers have been remotely triggered, and have the tendency to propagate widely.
Persistent weak layers down 50-100cm have been triggered recently by light loads, such as skiers or sluffing off of cliffs. These layers have been remotely triggered, and have the tendency to propagate widely.
Persistent weak layers down 50-100cm have been triggered recently by light loads such as skiers and sluffing from steep terrain.  These layers have been remotely triggered and are prone to propagate widely.
Layers down 50-100cm have been triggered recently by light loads such as skiers and sluffing from steep terrain. Remote triggering and wide propagations are possible. Cornice failures from warm daytime temperatures could trigger these layers.
Layers down 40-100cm have been triggered naturally and by light loads such as skiers and sluffing from steep terrain. Remote triggering and wide propagations are possible. Cornice failures from warm daytime temperatures could trigger these layers.
Recent and forecast precipitation could be enough to overload instabilities within our snowpack. A number of weak layers reside in the top 1.5m and were triggered by people in the backcountry last week.
Recent and forecast precipitation should be enough to overload instabilities within our snowpack. A number of weak layers reside in the top 1.5m and were triggerable by people in the back country last week even without this new load.
Continued warm precipitation has been enough to begin to overload the various persistent instabilities in our snowpack. A series of weak layers in the top 1.5m of snowpack should be considered triggerable by back country riders.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also do the trick.
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also do the trick.
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also cause avalanches to fail on these layers.
Weak layers in the top meter of the snowpack may become more reactive as the snowpack warms with daytime heat. Large triggers like cornice falls may also cause avalanches to fail on these layers.
A 70-90cm slab sits on a suncrust on steep solar aspects and preserved surface hoar at and below treeline. This slab is well formed in areas influenced by strong winds. This layer is becoming less reactive in tests, but remains triggerable by skiers.
80-100cm of storm slab sits on top of the Dec 2 persistent weak layer. This layer is in the form of surface hoar at and below treeline and suncrust on solar aspects in the alpine. The layer is producing hard results on field tests yesterday at 2100m.
80-100cm of  settling snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below treeline and suncrust on solar aspects treeline to alpine. The layer is producing moderate-hard results on field tests yesterday at 2000m.
80-100cm of settling snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below tree line and sun crust on solar aspects tree line to alpine. The layer has produced moderate-hard results in field tests.
80-100cm of settled snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below tree line and sun crust on solar aspects tree line to alpine. The layer has produced moderate-hard results in field tests.
Varying depths of settled snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below tree line and sun crust on solar aspects tree line to alpine. The layer has produced moderate-hard results in field tests.
80cm of snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below treeline and sun crust on solar aspects. Although this layer is becoming less reactive, it is still producing sudden results in stability tests.
80cm of snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below treeline and sun crust on solar aspects. Although this layer is becoming less reactive, it may awaken with ongoing incremental snow loading.
80cm+ of settled snow sits on top of the Dec 2nd interface.  This interface consists of surface hoar at and below treeline and suncrust on steeper solar aspects in the alpine.
80cm+ settled snow sits on top of the Dec 2nd interface. This layer consists of decomposing surface hoar at and below treeline and suncrusts on steep solar aspects in the alpine.
80cm+ settled snow sits on top of the Dec 2nd interface. This layer consists of decomposing surface hoar at and below tree line and sun crusts on steep solar aspects in the alpine.
Below the light surface snow a soft slab sits on a touchy layer (see details tab). This layer is variable and hard to predict. It has been easily triggered where a sun crust is buried, but may also become more reactive at lower elevations.
The incoming storm has the potential to add significant load to a variable and hard to predict weak layer (see details tab).&nbsp; It has been easily triggered where a sun crust is buried, but is also expected to become more reactive at lower elevations.
The storm is upon us with 15cm snow overnight and another 20cm expected today.  Overloading and failure of the soft slab over the Jan 4th weak layer is expected today resulting in an avalanche cycle.
The Jan 4th interface and associated slab were very reactive yesterday. Expect less natural avalanche activity today but continued elevated sensitivity to human triggering on this layer.
The January 4th interface is getting deep enough in the snowpack to be less reactive to skier loads. If storm slabs are triggered the load may be sufficient to wake the Jan 4th up.
The January 4th interface is getting deep enough in the snowpack to be less reactive to skier loads. If storm slabs are triggered the load may be sufficient to wake the Jan 4th up.
The January 4th interface is getting deep enough in the snowpack to be less reactive to skier loads. Triggered wind slabs, or larger loads like a group of skiers, may be sufficient to wake the Jan 4th up.
The January 4th interface is buried 50-80cm deep; still within range of being triggered by a person. The incremental loading of smaller storms onto this interface makes it a tricky one to predict when/if it will fail.
Incremental loading by a series of storms is making a weak layer down 50-80cm an increasing concern. This layer lingers in many areas and is sporadically reactive, making it tricky to assess. When it fails, however, large avalanches are the result.
A surface hoar layer now down 60-100cm is likely to be touchy after being overloaded by the storm. This layer lingers in many areas and is sporadically reactive, making it tricky to assess. When it fails, however, large avalanches are the result.
A surface hoar layer now down 60-100cm is likely to be touchy after being overloaded by the storm. This layer lingers in many areas and is sporadically reactive, making it tricky to assess. When it fails, however, large avalanches are the result.
The January 4th interface was recently rapidly overloaded.  This layer is tricky to assess as it is not evenly distributed on the landscape.  It is also only sporadically reactive.  It can be found in many locations 60-100cm down in the snowpack.
The January 4th interface was rapidly overloaded &amp; woke up during last weeks storm. This layer is tricky to assess as it is not evenly distributed on the landscape &amp; sporadically reactive. It can be found in many locations 60-100cm deep.
The Jan 4th interface was rapidly overloaded &amp; woke up during last weeks storm. This layer is tricky to assess as it is not evenly distributed &amp; sporadically reactive. It's down 60-90cm &amp; was still producing whumfs yesterday in the Cannaught drainage
This layer is tricky to assess as it's not evenly distributed &amp; sporadically reactive. It's down 60-90 &amp; was still producing whumfs yesterday in the Cannaught drainage. It may be possible to trigger from a thin area or by a large trigger like cornice
The Jan 4th layer is a lingering concern, and it is a tricky to assess. Where it exists it is down 60-90cm, but it is not evenly distributed &amp; is sporadically reactive. It has been triggered recently by cornices, resulting in large avalanches.
The Jan 4th layer is a lingering concern, and it is a tricky one to assess. Where it exists it is down 80-120cm, but it is not evenly distributed &amp; is sporadically reactive. It has been triggered recently by cornices, resulting in large avalanches.
The Jan 4th layer is a lingering concern down 80-120cm in the snowpack.  it is not evenly distributed and is sporadically reactive.  Added load of storm slabs or cornice fall when triggered may provide sufficient load to wake this layer up.
The Jan 4th interface is a lingering concern.  It can be found down 80-120cm in the snowpack.  It is not evenly distributed and sporadically reactive.  Storm slab failure or cornice fracture may provide the load to wake this layer up.
Although the snow from the recent storms is settling and slowly bonding, tests still indicate that a layer now down 60-100cm is reactive in some areas. It is likely to take a large trigger, like a cornice or another avalanche.
A weak layer down 60-100cm is a wild card. It could pop up anywhere but tests indicate it is more reactive on solar aspects, the same slopes that will be hit by the sun if it comes out. Strong solar could wake this layer up.
The Feb 10 persistent weak layer down 60-100cm is waiting to perform. It is widespread in distribution but most likely to be reactive on solar aspects. Strong SOLAR radiation today could wake this layer up.
Feb 10 interface lingers and may become reactive given prolonged sun or added load such as cornice fall or slab avalanche. 
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
The Feb 10th layer is buried 50-90cm. In some areas there is surface hoar on a crust, creating a dangerous combination. Sensitivity to triggering is variable among terrain features and careful consideration is required. Dig down and test this layer.
The Feb 10th layer is buried 50-90cm. In some areas there is surface hoar on a crust, creating a dangerous combination. Sensitivity to triggering is variable among terrain features and careful consideration is required. Dig down and test this layer.
The Feb 27 crust/ surface hoar layer is down 50-60cm and is producing moderate results in stability tests.&nbsp; When triggered, this layer could propagate into a large avalanche.&nbsp; Dig down and test this layer before committing. It is easy to identify.
The Feb 27 crust/ surface hoar layer is down 60cm and produces sudden results in stability tests. When triggered, this layer could propagate into a large avalanche. With warming temperatures this layer could fail as a moist slab at lower elevations.
The Feb 27 crust/surface hoar layer down 70cm produces sudden results in stability tests.  If triggered this layer could propagate into a large avalanche.  Continued warm temperatures could see this layer failing as a moist slab at lower elevations.
The February 27th interface is now down 70cm and was recently producing sudden planar results on field tests.  If triggered large avalanches could result.  Solar input today could increase this layer's sensitivity.
The February 27th interface is now down 70cm and is producing sporadic sudden planar results on field tests in sheltered areas. If triggered large avalanches could result. Daytime heating and solar input today could increase this layer's sensitivity.
The Feb 27th interface is now down 60cm &amp; is producing sporadic sudden planar results on field tests. It is most active as a crust on South asps and in sheltered areas at treeline. Daytime heating and solar input will increase it's sensitivity
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The Feb 27th interface is now down 60cm &amp; is producing sudden planar results on a crust on S though W aspects. Test results on NE aspects showed stubborn results. Wind-loading and solar input will </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Flat%20Creek%202016%2003%2009.JPG" target="_blank"><span class="s_9255B882">increase it's sensitivity.</span></a><span class="s_AA239
The Feb 27th interface is now down 60cm &amp; is producing sudden planar results on a crust on S though W aspects. Test results on NE aspects showed stubborn results. Wind-loading and solar input will increase it's sensitivity.
The Feb 27th interface is down 60cm and is producing sudden planar results on a crust on S though W aspects. Test results on NE aspects showed stubborn results. Wind-loading will increase it's sensitivity. Wet slabs below treeline from rain.
The Feb 27th interface is down 80cm and is producing sudden planar results on a crust on S though W aspects and surface hoar in isolated spots. This layer has been active recently, triggered by small wind slab avalanches and cornice falls.
Feb 27 interface is down 80cm+ and continues to give sudden planar results in field tests. The layer consists of crusts on solar aspects and decomposing surface hoar in isolated locations.
Feb 27 interface is down 80cm+ and continues to give sudden planar results in field tests. The layer consists of crusts on solar aspects and decomposing surface hoar in isolated locations.
Feb 27 interface is down 80cm+ and continues to give sudden planar results in field tests. The layer consists of crusts on solar aspects and decomposing surface hoar in isolated locations.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Tests, and recent avalanches in the region, continue to show that a layer down 75 to 100 is </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/RB4%28WB%29%20dn%2075cm.JPG" target="_blank"><span class="s_9255B882">triggerable by light loads</span></a><span class="s_AA239A9B"> (that's you). If triggered this layer is</span><a href="https://www.facebook.com/ParksMountainSafety/videos/vb.145133538869977/957537630962893/?type=2&amp;theater" target="_blank"><span class="s_9255B882"> likely to propagate</span></a><span class="s_AA239A9B"> into large avalanches. This layer is of most concern on solar aspects.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Tests, and recent avalanches in the region, continue to show that a layer down 75 to 100 is </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/RB4%28WB%29%20dn%2075cm.JPG" target="_blank"><span class="s_9255B882">triggerable by light loads</span></a><span class="s_AA239A9B"> (that's you). If triggered this layer is</span><a href="https://www.facebook.com/ParksMountainSafety/videos/vb.145133538869977/957537630962893/?type=2&amp;theater" target="_blank"><span class="s_9255B882"> likely to propagate</span></a><span class="s_AA239A9B"> into large avalanches. This layer is of most concern on solar aspects.
Buried crusts are creating persistent instabilities on solar aspects.  Storm snow sits on a crust down 30-50cm. February crust is down 80-120cm and still has surface hoar crystals on top in some places. Locate and test these layers before committing.
Buried crusts and associated weak layers have created persistent instabilities on solar aspects.  Recent storm snow sits on top of crusts 30-50cm down.  Feb 27 interface down 80-120cm still producing sudden planar results.  Take the time to evaluate.
Buried crusts and associated weak layers have created persistent instabilities on solar aspects. Recent storm snow sits on top of crusts 30-50cm down. Feb 27 interface down 80-120cm still producing sudden planar results. Take the time to evaluate.
Buried crusts and associated weak layers have created persistent instabilities on solar aspects. Recent storm snow sits on top of crusts 30-50cm down. Feb 27 interface down 80-120cm still producing sudden planar results. Take the time to evaluate.
Buried crusts have created persistent instabilities on solar aspects. Recent storm snow sits on top of crusts 30-50cm down. The crust of most concern is the Feb 27 interface down 70-120cm, which is still producing sudden planar results.
Buried crusts have created persistent instabilities on solar aspects. The crust of most concern is the Feb 27 interface down 70-120cm, which is still producing sudden planar results.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
Intense solar and warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Intense solar and warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Intense solar and warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Step-down avalanche potential exists with the many crusts buried in the upper metre. Tests on these crusts indicate that it will likely take a heavy load to trigger them, like a cornice fall or another avalanche. Expect large avalanches if they move!
Step-down avalanche potential exists with the many crusts buried in the upper metre, especially on solar aspects. It will take a heavy load to trigger them, like a cornice fall or another avalanche. Expect large avalanches if they move!
A crust buried up to 1m deep may become increasingly reactive over the weekend and be hard to predict. Test results show variability: in some areas it is unreactive and in others it may be triggered by light loads (you!) and produce large avalanches.
Forecast snow and wind might make a crust buried up to 1m deep more reactive and unpredictable. Test results show variability: in some areas it is unreactive and in others it may be triggered by light loads (you!) and produce large avalanches.
Storm snow loading on top of the persistent slab/Nov crust could make this deep slab more reactive. Field tests so far show variability with areas that are unreactive and others where light loads may trigger slides on this layer.
The snow from the past week has been slow to form a slab in part due to continued cool temperatures and little wind. Slab properties are now starting to form and this is a concern, given the poor bond to the Dec 18th facet layer down 50-60cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The weak, facetted snow from the cold snap in early December is now buried ~70-100cm. The slab over this layer is developing, and as the load on this layer grows it may become increasingly reactive.
Persistent slabs are most volatile near ridge crest, shallow areas and lee features. Down flow winds in the Sir Don Range have been observed. This layer overlies a variety of interfaces from surface facets to wind slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Jan 25th sun crust is buried down approx 60cm. Previous to the storm it was whumphing, showing easy sudden results and reactive to human triggering. If the storm slab is triggered it has the potential to step down and trigger this layer.
The Jan 25th sun crust is buried down approx 60cm. Previous to the storm it was whumphing, showing easy sudden results and reactive to human triggering. If the storm slab is triggered it has the potential to step down and trigger this layer.
The Jan 25th sun crust is buried down approx 60cm.  Before last week's storm it was giving easy sudden planar results and was reactive to human triggering.  If the storm slab releases it has the potential to step down to this deeper weak layer.
The January 25th sun crust, weak layer is buried down approx 60cm.  Before last week's storm it was giving easy sudden planar results and was reactive to human triggering.  Warming surface layers may reawaken this layer today.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Snowpack tests have been finding isolated sudden planar results, making them hard to predict. With the added load of rain/heavy snow they may be more reactive
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Snowpack tests show isolated sudden planar results, making them hard to predict. With the added load of rain/heavy snow they may be more reactive.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Snowpack tests show isolated sudden planar results, making them hard to predict. With the added load of rain/heavy snow they may be more reactive.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Tests show isolated sudden planar results, making them hard to predict. Be cautious in shallow snowpack areas (ridge-crests) where triggering is more likely.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Tests show isolated sudden planar results, making them hard to predict. Be cautious in shallow snowpack areas (ridge-crests) where triggering is more likely.
Weak layers in the top meter include sun crusts on S'ly aspects and pockets of surface hoar on N'ly aspects. Field tests show isolated sudden planar results, making the weak layers hard to predict. Be careful in thin snowpack locations.
A crust buried last Sunday could act as a bed surface, if slab properties are enabled with daytime heating on solar aspects. Loose dry avalanches are also possible.
Buried crusts on solar aspects are hidden under the march snow. A snow profile yesterday on a south aspect showed the storm snow bonding to the crust, however skiers were able to trigger slab avalanches on this layer earlier in the week.
Buried crusts on solar aspects are hidden under the march snow. Skiers were able to trigger slab avalanches on this layer earlier in the week and yesterday.
Buried crusts on South and West aspects are hidden under the march snow. Skiers were able to trigger slab avalanches on this layer earlier in the week.&nbsp; Take time to assess the how the snow is bonding when moving onto solar aspects
Buried crusts on South and West aspects are hidden under the March snow. Skiers were able to trigger slab avalanches on this layer earlier in the week. Recent storm snow has a high potential to dig down and trigger these deeper slabs.
Buried crusts on South and West aspects are hidden under the March snow. Skiers were able to trigger slab avalanches on this layer earlier in the week. Recent storm snow has a high potential to dig down and trigger these deeper slabs.
Buried crusts on solar aspects are hidden under our recent storm snow. Skiers were able to trigger slab avalanches on this layer earlier in the week. Avalanches triggered in the storm snow have a high probability to overload this layer.
Several persistent weak layers are in the upper snowpack. There is step down potential for storm slab releases to dig down to these layers resulting in large dangerous avalanches.
Rain soaked snow yesterday will have penetrated deep into the snowpack, lubricating the deeper persistent layers of concern. As the storm slabs fail above these layers it will easily step down to the Feb 28th interface and deeper.
Persistent deep layers made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface instabilities fail, avalanches can easily step down weak layers from late February.
Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><a href="https://www.facebook.com/ParksMountainSafety/photos/a.1122932427756745.1073741905.145133538869977/1250972184952768/?type=3&amp;theater" target="_blank"><span class="s_9255B882">Persistent deep layers</span></a><span class="s_AA239A9B"> made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface instabilities fail, avalanches can easily step down to weak layers from late February.
Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><a href="https://www.facebook.com/ParksMountainSafety/photos/a.1122932427756745.1073741905.145133538869977/1250972184952768/?type=3&amp;theater" target="_blank"><span class="s_9255B882">Persistent deep layers</span></a><span class="s_AA239A9B"> made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface instabilities fail, avalanches can easily step down to weak layers from late February, or deeper in shallow areas.
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</style><p class="p_CC664AAA"><a href="https://www.facebook.com/ParksMountainSafety/photos/a.1122932427756745.1073741905.145133538869977/1250972184952768/?type=3&amp;theater" target="_blank"><span class="s_9255B882">Persistent deep layers</span></a><span class="s_AA239A9B"> made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface slabs fail, avalanches can easily step down to weak layers from late February, or deeper in shallow areas.
It is an impressive and humbling time to be traveling in the back-country. Very large avalanches have been occurring, even logging mature timber. The scary thing is, these large avalanches continue to occur sporadically and are very hard to predict.
It is an impressive and humbling time to be traveling in the back-country. Very large avalanches have been occurring, even logging mature timber. These large avalanches continue to occur sporadically and are very hard to predict.
The month of March has been characterized by heavy loading of new snow and rain. These events have created an instable snowpack that is verging on a tipping point. Deep weak layers have been failing sporadically leading to large avalanches.
The month of March has been characterized by heavy loading of new snow and rain.  After an intense avalanche cycle, the snow pack is still stabilizing. Deep weak layers have been failing sporadically leading to large avalanches.
The month of March has been characterized by heavy loading of new snow and rain. After an intense avalanche cycle, the snow pack is still stabilizing. Deep weak layers have been failing sporadically leading to large avalanches.
The month of March has been characterized by heavy loading of new snow and rain. After an intense avalanche cycle, the snow pack is still stabilizing. Deep weak layers have been failing sporadically leading to large avalanches.
Soft slabs overlie a series of strong crusts in most areas. As freezing levels rise this slab is expected to be increasingly reactive. These slabs will be deepest in areas that have been wind-loaded.
Cornices dropping and smaller avalanches have recently triggered deep, persistent weak layers. The resulting avalanches have been observed to run well into the valley bottoms. With continued loading during the storm likelihood will increase.
Cornices dropping and smaller avalanches have recently triggered deep, persistent weak layers. The resulting avalanches have been observed to run well into the valley bottoms. With continued loading during the storm likelihood will increase.
Cornices and smaller avalanches have recently triggered deep, persistent weak layers. The resulting avalanches have been observed to run well into the valley bottoms. With daytime warming, the likelihood will increase.
Storm slabs are most volatile where they overlie a crust on solar aspects. 50+cm of new snow accompanied by warm temperatures and wind fell over the last week in the alpine and upper end of tree line.
There are multiple crusts in the upper metre of the snowpack, each providing a smooth sliding layer if avalanches dig down and trigger the deeper layers. Solar aspects are the biggest concern with day-time warming and a powerful April sun.
Be aware of a potential weak interface found at the base of the snowpack above 1900m in as this early Nov crust breaks down.
Jan 5 Surface Hoar/ Suncrust layer is now buried 60 to 90 cm. Extra caution on sheltered North and East aspects. Dig down to identify this layer and avoid  steep or unsupported slopes where it is present. Triggering this layer would be serious.
Jan 5 interface in sheltered locations where preserved surface hoar can be found down 50 to 90 cm. Dig down often to identify this layer and avoid steep or unsupported slopes where surface hoar is present. Triggering this layer would be serious.
Associated with mid pack crusts we see a layer of sugary crystals underlying stiffer upper layers. Use more caution in thin areas as triggering&nbsp; may be more likely.
The crusts near the bottom of the snowpack have been weakening, especially on cooler North aspects.
Weak snow associated with crusts formed in Mid and early November can be found down about 70cm. This seems to be less significant on Southerly aspects. Triggering planar slopes from thin areas remains a possibility to consider.
Weak snow associated with crusts formed in Mid and early November can be found down about 70cm. This seems to be less significant on Southerly aspects. Triggering planar slopes from thin areas remains a possibility to consider.
This layer of weak sugary snow is found in many areas&nbsp; about 30 to 40cm from the ground. Triggering&nbsp; of this&nbsp; layer is more of a concern in shallower snowpack areas.
Weak faceted or sugary snow can be found almost everywhere 30 to 40 cm above the ground. Triggering in thin snowpack areas remains a concern. Some natural avalanche activity should be expected if snowfall amounts are significant Friday.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations or remote triggering that has been seen.
&nbsp; These slabs have become a little less touchy but are now buried by an additional load (60cm over the past week). Limit your exposure to significant slopes. Do not get taken by surprise. Long propagations are still likely.
Now 80 to 130 cm thick, these slabs threaten serious consequence. While the potential for triggering has dropped, do not get taken by surprise: long propagations and remote triggering may still be possible. Limit your exposure to significant slopes.
These slabs became less sensitive with cold temperatures and increasing depth. Now as conditions change with rapid loading and warming, limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.
These slabs became less sensitive with the increasing snowpack depth. As temperatures warm to ridgetop for Sun limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.
The weak February facet layer is now buried up to 170cm deep. Large loads such as cornices have triggered this layer where it is deep and it has failed with sluffing and heating where it is shallow. Long propagations are possible with this layer.
The weak facet layer is now buried by up to 170cm in treeline and alpine areas and below treeline is found down 50cm. Many avalanches fell over the weekend on this layer and it is a concern that may persist for some time. Triggering is possible!
The layer down 70-170 cm is still active as demonstrated Thur with avalanche control work up Akamina. Any slope not yet slid should be a concern. Windslabs, cornices, storm slabs or wet loose avalanches could step down and result in large avalanches.
70 to 110cm of snow is now settling above the early March Crusts. Variable shears persist in these slabs and they are well worth bearing in mind particularly as heating becomes more of a factor in the days and weeks to come.
Although unlikely, a large load such as a cornice failure or another avalanche could trigger all of the snow above these strong crusts. Significant and sustained heating or rain may also allow these slabs to become active such as is forecast Monday.
With significant heating in the forecast for Monday and Tuesday deep slabs may become active. Large loads such as falling cornices or smaller avalanches could trigger large avalanches on the March crusts or even the February facets.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">With significant heating in the forecast for Tuesday deep slabs may become active. Large loads such as falling cornices or smaller avalanches could trigger large avalanches on the March crusts or even the February facets.
These slabs taper radically with elevation. Large slides resulted from failures in the recent storm snow over the crust that extends into the alpine.
These slabs taper radically with elevation and are sitting on a thick crust. Large slides resulted from failures in the recent storm snow over the crust that extends to around 2300m. These slabs may become easier to trigger with the expected heating.
Above 2000m the crust above the weak November Facets is variable. Triggering may remain a possibility for some time. Use caution Treeline and above especially in thin areas.
The weak snow above the crust is now primed with a big enough slab for there to be serious consequences. In the alpine this problem will likely be limited to N and E aspects but at treeline it is widespread. Use extra care in open, sheltered terrain.
The weak snow above the crust is now primed with a big enough slab for there to be serious consequences. In the alpine this problem will likely be limited to N and E aspects but at treeline it is widespread. Use extra care in open, sheltered terrain.
Facets and isolated surface hoar above the Dec 13 crust remain the feature to watch in the snowpack. New load from storms or wind transport will make this more sensitive to triggering especially when combined with warm temperatures Wednesday.
Continue to watch for this layer which has proven to be extremely variable. Areas where these slabs are thin may should raise added caution.
Continue to watch for this layer which has proven to be extremely variable. Areas where these slabs are thin should raise added concern.
Continue to watch for this layer which has proven to be extremely variable. Be extra vigilant in thin snowpack areas, where the layer is more likely to be triggered by riders/climbers.
Although we have received recent extra snow load on this layer, it is not reacting. It is becoming less and less reactive as time goes by. Be mindful in thin snowpack areas, where the layer is more likely to be triggered by riders/climbers.
Although we have received recent extra snow load on this layer, it is not reacting. It is becoming less and less reactive as time goes by. Be mindful in thin snowpack areas, where the layer is more likely to be triggered by riders/climbers.
We received additional snow load last weekend but have still not seen any evidence of activity on this layer in our area even though neighbouring areas have. Be mindful in thin snowpack areas, where the layer is more likely to be triggered.
Now 40 to 120cm deep these slabs continue to stand out as a real concern. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
These slabs that formed last weekend are sitting on a firm surface or crust 50 to 80cm deep. With continued warm conditions these slabs remain possible to trigger in many areas. The deep persistent layers could also be triggered in isolated areas.
These old windslabs continue to  produce reluctant shears 25 to 50 cm deep in the upper snowpack and are a concern above 2200m. Keep an eye on these if you are considering taking on serious terrain.
Early December crusts may also act as weak layers.
A large natural slab avalanche was observed today, that may have released at a buried crust from early December. For now, it is unclear if this will remain an isolated event, or if this layer is becoming more sensitive to loads.
A large natural slab avalanche was observed last wednesday, this may have released at a buried crust from early December. For now, it is unclear if this will remain an isolated event, or if this layer is becoming more sensitive to loads.
A large natural slab avalanche was observed last wednesday, this may have released at a buried crust from early December. For now, it is unclear if this will remain an isolated event, or if this layer is becoming more sensitive to loads.
A buried surface hoar layer has produced sudden results in snowpack tests at treeline. This layer is now a concern due to rapid warming of the snowpack and strong solar radiation.
A buried layer of Surface Hoar will be difficult to trigger, but has potential to propagate widely. Follow good travel techniques, such as spacing out, and regrouping only in safe spots.
A buried layer of Surface Hoar will be difficult to trigger, but has potential to propagate widely.
This layer has become difficult to trigger but has the potential to propagate widely.
A weak layer that was buried in early January seems to be gaining strength, but this strength is being put to the test by wind loading, new snow and near-zero temperatures.
A weak layer that was buried in early January was showing signs of strengthening before Fridays' storm, but has not been ruled out as the potential failure plane of several large, recent slab avalanches. Consider avalanche consequence at all times.
A weak layers buried in early January and early December have not been ruled out as the potential failure plane of several large, recent slab avalanches. While the probability of triggering these layers is low, the consequences will be significant.
While mostly stubborn to trigger, buried layers of old windslab over a couple of buried crusts have the potential for wide propagation.&nbsp; Use a probe or a pole to test for the presence of these buried layers.
While mostly unlikely to trigger, buried layers of old windslab over a couple of buried crusts have the potential for wide propagation. Use a probe or a pole to check for the presence of these buried layers.
Nearby operations have reported these failing in the middle of the snowpack, and in some cases stepping down to ground. They are most likely to be triggered in thin Rocky areas, which are more widespread in the Eastern areas of the Park.
Nearby operations have reported these failing in the middle of the snowpack, and in some cases stepping down to ground. They are most likely to be triggered in thin rocky areas, which are more widespread in the Eastern areas of the Park.
Nearby areas have seen these failing in the midpack facets in thicker areas and in loose sugary facets near the ground in thinner areas. They are most likely to be triggered in thin rocky areas, with variable snowpack depth.
The weak midpack facet layer is widespread, but highly variable slab thickness and sensitivity makes these hard to evaluate. These are difficult to trigger, but may be large. Rocky, wind-exposed areas are most suspect.
The weak mid-pack facet layer is widespread, but&nbsp; the slab over it is variable. These may be&nbsp; difficult to trigger but&nbsp; are high consequence. Avoid large uniform features, shallow trigger points, and watch for slab properties in the upper snowpack.
The weak facet layer is isolated to thin snowpack areas where the presence of any slab over these crystals would spell concern. Avoid thin snowpack areas, use caution with large uniform features, and consider the potential for shallow trigger points.
Avoid thin snowpack areas, use caution with large uniform features, and consider the potential for shallow trigger points.
A weak layer of facets in the middle of the snowpack will be trying to adjust to new loading from recent snowfall, and forecast wind transport. A Moderate, Sudden Planar result in a snowpack test on Tuesday indicates potential for human triggering.
Facets in the midpack have produced sporadic test results, and loads in thin Alpine areas could trigger Deep Persistent Slabs on a Depth Hoar/Crust combo near the bottom of the snowpack. Near-zero temps may increase sensitivity of these layers.
A 70cm slab of previous storm snow sits on a crust below 2000m, and/or facets. These are widespread, but hard to trigger. Dig in safe areas on adjacent slopes, do snowpack tests and gain more information, before entering into consequential terrain.
In some locations, buried Wind Slabs sit unsteadily on 5-10cm of small facets. There is plenty of uncertainty about where these exist; however, they are most likely at Treeline, and are touchy on steep S and SW aspects where facets overlie a crust.
There is uncertainty about the distribution of this layer, it is suspected to be most reactive at Treeline, on steep S and SW aspects where facets overlie a crust.
There is uncertainty about the distribution of this layer, it is suspected to be most reactive at Treeline, on steep S and SW aspects where facets overlie a crust.
1681A555">This layer may become active as facets form on the crust and the snow load increases. Smaller avalanches may &quot;step-down&quot; to this layer.
="s_3FE45715">The mid-November crust is typically down 60-120cm. This appears to be a very isolated problem at the moment but could have major consequences if triggered. The biggest concerns are smaller avalanches stepping down or triggering from a thin area.
="s_3FE45715">A weak layer buried mid-December now lies up to 75cm below the surface and has the potential for large avalanches. It's a tricky one to manage as it's not a problem in all areas. If in doubt, err on the side of caution and to stick to mellow terrain.
="s_3FE45715">A weak layer buried mid-December now lies up to 90cm below the surface and has the potential for large avalanches. It's a tricky one to manage as it's not a problem in all areas. If in doubt, err on the side of caution and to stick to mellow terrain.
="s_3FE45715">A weak layer from early February down 50-80 cm remains reactive to human triggering in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
Storm slabs may take longer to settle and bond where they are sitting on a crust and/or a layer of facets that grew during the latest cold clear weather. Fracture propagations may be long resulting in large and dangerous avalanches.
A persistent weakness buried last week has the propensity to propagate slab fractures into large and dangerous avalanches. Deeper persistent weakness area also waking up in some parts of the region with isolated, but massive, recent avalanches.
A persistent weakness buried last week has the propensity to propagate slab fractures into large and dangerous avalanches. Deeper persistent weakness area also waking up in some parts of the region with isolated, but massive, recent avalanches.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming and sun-exposure is expected increase the likelihood of these massive avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming and sun-exposure is expected increase the likelihood of these massive avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming is expected to increase the likelihood of these large avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming is expected to increase the likelihood of these large avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming is expected to increase the likelihood of these large avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming is expected to increase the likelihood of these large avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming is expected to increase the likelihood of these large avalanches, especially with cornice-fall triggers.
Various persistent weakness throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
Various persistent weakness throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
Various persistent weakness throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
Various persistent weaknesses throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
Various persistent weaknesses throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
Various persistent weaknesses throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
Various persistent weaknesses throughout the snowpack create the potential for large step down avalanches. Sustained sun exposure or heavy triggers like a cornice fall could trigger a deep and destructive avalanche.
Various persistent weaknesses throughout the snowpack create the potential for large avalanches stepping down to buried weak layers. Sustained sun exposure or heavy triggers like a cornice fall could trigger deep, destructive avalanches.
40-80 cm of snow sits above a weak layer of facets from mid-December and continues to be reactive in parts of the region that have thinner snowpacks.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">40-80 cm of snow sits above a weak layer of facets from mid-December and has recently been reactive in parts of the region with thin snowpacks. Winds slabs may also step down and trigger this layer.</span><span class="s_AA239
="s_3FE45715">Where denser snow overlies weak sugary snow, there is the potential to trigger large dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
="s_3FE45715">Surface hoar and/or facets buried mid-December remains a concern in shallow snowpack areas.
="s_3FE45715">Surface hoar and/or facets buried mid-December remains a concern in shallow snowpack areas.
="s_3FE45715">Surface hoar and/or facets buried mid-December remains a concern in shallow snowpack areas.
="s_3FE45715">The surface hoar and facets buried mid-December formed a weak layer that remains a concern in shallow snowpack areas. Dig down and test this layer if you're considering a steeper line at treeline or higher.
="s_3FE45715">The surface hoar and facets buried mid-December formed a weak layer that remains a concern in shallow snowpack areas. Remember that a smaller wind slab avalanche may provide enough of a trigger to 'step down' to this deeper weakness.
="s_3FE45715">The surface hoar and facets buried mid-December formed a weak layer that remains a concern in shallow snowpack areas. Remember that a smaller wind slab avalanche may provide enough of a trigger to step down to this deeper weakness.
Rapid warming of the snowpack will increase the likelihood of triggering persistent weak layers that have been lingering deep in the snowpack.
Warming of the snowpack will increase the likelihood of triggering persistent weak layers that have been lingering deep in the snowpack.
Warming of the snowpack will increase the likelihood of triggering persistent weak layers that have been lingering deep in the snowpack.
Recent warming will have increased the likelihood of triggering persistent weak layers that have been lingering deeper in the snowpack
Recent warming will have increased the likelihood of triggering persistent weak layers that have been lingering deeper in the snowpack
Persistent slab problems are back in play as new load is added to the snowpack. Stick to supported terrain and exercise extra caution where new snow is piling onto a shallow snowpack.
Persistent slab problems are back in play as new load is added to the snowpack. Stick to supported terrain and exercise extra caution where new snow is piling onto a shallow snowpack.
Persistent slab problems are back in play as new load is added to the snowpack. Stick to supported terrain and exercise extra caution where new snow is piling onto a shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack. Stick to supported terrain and exercise extra caution where new snow is piling onto a shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack. Stick to supported terrain and exercise extra caution where the new snow has stacked onto a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack. Stick to supported terrain and exercise extra caution where the new snow has stacked onto a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack. Stick to supported terrain and exercise extra caution where the new snow has stacked onto a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack. Stick to supported terrain and exercise extra caution where the new snow has stacked onto a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack and the upcoming warming. Stick to supported terrain and exercise extra caution where the new snow lies over a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack and the upcoming warming. Stick to supported terrain and exercise extra caution where the new snow lies over a previously shallow snowpack.
A weak layer from early February down 60-80 cm remains reactive to human triggering in isolated areas. Deeper weak layers in the snowpack appear to have woken up this week and very large avalanches are possible in isolated areas.
A persistent weakness down 60-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
A persistent weakness down 60-80 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Warming is expected to increase the likelihood of these large avalanches, especially with cornice-fall triggers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or a cornice fall increase the likelihood of triggering these layers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or a cornice fall increase the likelihood of triggering these layers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or a cornice fall increase the likelihood of triggering these layers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or a cornice fall increase the likelihood of triggering these layers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or a cornice fall increase the likelihood of triggering these layers.
Various persistent weaknesses strewn throughout the snowpack create the potential for large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or a cornice fall increase the likelihood of triggering these layers.
="s_3FE45715">Various persistent weaknesses throughout the snowpack create the potential for large step down avalanches. Sustained sun exposure or heavy triggers like a cornice fall could trigger a deep and destructive avalanche.
A few large persistent slab avalanches were recently noted in the Corbin area, although I'm unsure of how far-reaching this problem is in the region. I'd carefully test for weak layers before committing to any steep slopes.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Weak snow in the lower snowpack has been reactive recently in the southeast of the region. Triggering may be possible from thin snowpack areas, or smaller avalanches could step down to this layer.
Weak faceted snow exists in the lower snowpack and may be possible to trigger in thin snowpack areas or on wind-loaded slopes.
Weak faceted snow exists in the lower snowpack and may be possible to trigger in thin snowpack areas or on wind-loaded slopes.
Weak faceted snow exists in the lower snowpack and may be possible to trigger in thin snowpack areas and on wind-loaded slopes.
In many places there appears to be insufficient stiffness in the slab for persistent slabs to be a concern. However, where denser snow exists, the weak facets in the lower half of the snowpack pose a concern, particularly on convex slopes.
Where denser snow overlies weak, sugary snow below, there is the potential to trigger large, dangerous avalanches.
Where denser snow overlies weak, sugary snow below, there is the potential to trigger large, dangerous avalanches.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
Where denser snow overlies weak, sugary snow, there is the potential to trigger large, dangerous avalanches. Dig down and test for weak layers before committing to any steep slope.
="s_3FE45715">Triggering deeper weak layers will remain possible with warm temperatures and wind loading.
="s_3FE45715">Triggering deeper weak layers remains possible where hard slabs sit above weak sugary snow.
="s_3FE45715">Storm snow from the last week has coalesced into a slab up to a meter in depth that is poorly bonded to the old surface due to a persistent buried weak layer. These slow to heal slabs are most likely to be triggered in wind exposed terrain.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Up to a metre of snow from the past week is bonding poorly to a buried persistent weak layer. The likelihood of triggering a deeply buried weakness will be increasing while new snow and wind add load to the snowpack.
="s_3FE45715">Up to a metre of snow from the past week is bonding poorly to a buried persistent weak layer. The likelihood of triggering a deeply buried weakness will be increasing while new snow and wind add load to the snowpack.
="s_3FE45715">Up to a metre of snow from the past week is bonding poorly to a buried persistent weak layer. The likelihood of triggering a deeply buried weakness will be increasing while new snow and wind add load to the snowpack.
="s_3FE45715">A metre or more of snow from the past week is bonding poorly to a buried persistent weak layer. The likelihood of triggering a deeply buried weakness will be increasing while new snow and wind add load to the snowpack and as temperatures rise.
="s_3FE45715">A metre or more of snow from the past week is bonding poorly to a buried persistent weak layer. The likelihood of triggering a deeply buried weakness will be increasing while new snow and wind add load to the snowpack and as warm temperatures persist
="s_3FE45715">A weak layer down around 1 metre is creating a low probability/high consequence scenario. It may still be possible to directly trigger this layer in isolated areas or a small avalanche or cornice fall could step down to it.
="s_3FE45715">A weak layer down around 1 metre is creating a low probability/high consequence scenario. It is unlikely to directly trigger this layer but a small avalanche or cornice fall could still step down to it.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads or temperatures increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads or temperatures increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads or temperatures increase.
This problem is more prevalent in the far north areas of the region and is a low likelihood, high consequence scenario that will need to be monitored as snow loads or temperatures increase.
A persistent weak layer existing mainly in the north of the region is creating a 'low probabity/high consequence' avalanche problem. The recent storm has added a fresh load above this layer, potentially increasing its likelihood of triggering.
A persistent weak layer existing mainly in the north of the region is creating a 'low probabity/high consequence' avalanche problem. The recent storm has added a fresh load above this layer, potentially increasing its likelihood of triggering.
="s_3FE45715">Storm snow from the last week has coalesced into a slab up to a meter in depth that is poorly bonded to the old surface due to buried persistent weak layers. These slow to heal slabs are most likely to be triggered in wind exposed terrain.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Up to 1 m of snow which accumulated over the past week is poorly bonded to a buried persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be up to 1.5 m thick.
="s_3FE45715">Recent large avalanches have run on a persistent weak layer now buried up to a metre below the surface. This type of feedback can't be ignored. Warming temperatures and incremental loading increase the potential for deep releases.
="s_3FE45715">Recent large avalanches have run on a weak layer buried up to a metre below the surface in the north of the region. This type of feedback can't be ignored. Warming temperatures and incremental loading increase the potential for deep releases.
="s_3FE45715">Recent large avalanches have run on a weak layer buried up to a metre below the surface in the north of the region. This type of feedback can't be ignored. Warming temperatures and incremental loading increase the potential for deep releases.
="s_3FE45715">Recent large avalanches have run on a weak layer buried up to a metre deep in the north of the region. This type of feedback can't be ignored. Warming temperatures and loading from wind, snow, and rain increase the potential for deep releases.
="s_3FE45715">A weak layer down around 1 metre is creating a low probability/high consequence scenario. It may still be possible to directly trigger this layer in isolated areas or a small avalanche or cornice fall could step down to it.
="s_3FE45715">A weak layer down around 1 metre is creating a low probability/high consequence scenario. It is unlikely to directly trigger this layer but a small avalanche or cornice fall could still step down to it.
="s_3FE45715">A weak layer down around 1 metre is creating a low probability/high consequence scenario. It is unlikely to directly trigger this layer but a small avalanche or cornice fall could still step down to it.
A layer of surface hoar down 80-120 cm and/or a weak crust layer near the bottom of the snowpack may wake-up as a result of wind loading. Wind slab avalanches may step down to these layers resulting in very large and destructive avalanches.
The early December cold snap has left several weak layers composed of surface hoar and facets buried about 1 metre deep. Additional loading from new snow and wind could potentially release large avalanches on these layers.
The additional load of storm snow will make it possible to trigger deeper weak layers that formed during the early December cold snap. These weak layer include facets and surface hoar that are buried over 1 metre deep.
The additional load of storm snow may make it possible to trigger deeper weak layers that formed in isolated areas during the early December cold snap. These weak layers include facets and surface hoar that are buried over one metre deep.
The additional load of storm snow may make it possible to trigger deeper weak layers that formed in isolated areas during the early December cold snap. These weak layers include facets and surface hoar that are buried 100-150 cm deep.
The additional load of storm snow may make it possible to trigger deeper weak layers that formed in isolated areas during the early December cold snap. These weak layers include facets and surface hoar that are buried 100-150 cm deep.
The additional load of storm snow may make it possible to trigger deeper weak layers that formed in isolated areas during the early December cold snap. These weak layers include facets and surface hoar that are buried 100-150 cm deep.
A recently buried surface hoar layer is highly sensitive to human triggering and has given a few people a scare in the Terrace area. Brief warming on Friday night may add cohesion to the slab allowing it to propagate over wider distances.
A recently buried surface hoar layer is highly sensitive to human triggering and has given a few people a scare in the Terrace area. Forecast extreme winds may press and add cohesion to the slab promoting wider  propagations.
A recently buried surface hoar layer is highly sensitive to human triggering and has given a few people a scare in the Terrace area. Forecast extreme winds may press and add cohesion to the slab promoting wider propagations.
Surface hoar that was buried last week continues to be sensitive to human triggering in the Terrace area. This problem may be more widespread across the southern half of the region. Please submit your observations to the MIN.
Dig down and test small slopes in the alpine before committing to large terrain features. Watch for increased reactivity on solar exposed aspects where the inversion may result in above freezing temperatures.
Dig down and test small slopes in the alpine before committing to large terrain features. Conditions may change quickly around treeline where there was a band of warm air on Wednesday.
New snow will be adding load to to our persistent weak layer on Friday. Take extra care to avoid thin trigger points and exposure to overhead hazard during the storm.
New snow has added load to our persistent weak layers. Take extra care to avoid thin trigger points and exposure to overhead hazard during the storm.
Weak layers of buried surface hoar up to a metre deep may be reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of buried surface hoar up to 1.5 metres deep may be reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of buried surface hoar up to 1.5 metres deep may be reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of buried surface hoar up to 1.2 metres deep may be reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of surface hoar are now buried up to 1.2 metres deep and may be more reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of surface hoar are now buried up to 1.2 metres deep and may be more reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of surface hoar are now buried up to 1.2 metres deep and may be more reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
Weak layers of surface hoar are now buried up to 1.2 metres deep and may be more reactive after the recent loading. Take extra care to avoid thin trigger points and exposure to overhead hazard.
It is still possible to trigger avalanches on buried weak layers (Dec 25, Dec 30, Jan 5th, Jan 12th surface hoar) ... or have a smaller avalanche 'step down' and trigger deeper instabilities.
It is still possible to trigger avalanches on buried weak layers (Dec 25, Dec 30, Jan 5th, Jan 12th surface hoar) ... or have a smaller avalanche 'step down' and trigger deeper instabilities.
It is still possible to trigger avalanches on buried weak layers (Dec 25, Dec 30, Jan 5th, Jan 12th surface hoar) ... or have a smaller avalanche 'step down' and trigger deeper instabilities.
It's still possible to trigger avalanches on buried weak layers (Dec 25, Dec 30, Jan 5th, Jan 12th surface hoar) ... or have a smaller avalanche 'step down' and trigger deeper instabilities.
It may still be possible to trigger avalanches on buried weak layers (Dec 25, Dec 30, Jan 5th, Jan 12th surface hoar) ... or have a smaller avalanche 'step down' and trigger deeper instabilities.
It may still be possible to trigger avalanches on buried weak layers (Dec 25, Dec 30, Jan 5th, Jan 12th surface hoar) ... or have a smaller avalanche 'step down' and trigger deeper instabilities.
Storm snow from the last week has consolidated into a slab 50-85cm in depth that is poorly bonded to the old surface due to a persistent buried weak layer. These slow to heal slabs are most likely to be triggered in wind exposed terrain.
Storm snow from the last week has consolidated into a slab 50-85cm in depth that is poorly bonded to the old surface due to a persistent buried weak layer. These slow to heal slabs are most likely to be triggered in wind exposed terrain.
A mix of persistent weak crystals lurk up to 120cm below the surface, and have the potential for surprisingly large avalanches. Conservative terrain selection remains critical for the foreseeable future.
A mix of persistent weak crystals lurk up to 150cm below the surface, and have the potential for surprisingly large avalanches. Conservative terrain selection remains critical for the foreseeable future.
A mix of persistent weak crystals lurk about 50-80 cm below the surface, and have the potential for surprisingly large avalanches. Conservative terrain selection remains critical for the foreseeable future.
The new snow will likely trigger large avalanches on a reactive weak layer buried 50-80 cm deep.
The new snow will also trigger large avalanches on a reactive weak layer buried over a metre deep.
The new snow will also trigger large avalanches on a reactive weak layer buried over a metre deep.
A persistent weak layer from late February is buried up to a metre deep and continues to show reactivity in snowpack tests. Potential still exists for a rider to directly trigger this layer or for a smaller wind slab avalanche to act as a trigger.
A persistent weak layer from late February is buried up to a metre deep and continues to show reactivity in snowpack tests. Potential still exists for a rider to directly trigger this layer or for a smaller wind slab avalanche to act as a trigger.
A persistent weak layer from late February is buried up to a metre deep and continues to show reactivity in snowpack tests. Potential still exists for a rider to directly trigger this layer or for a smaller wind slab avalanche to act as a trigger.
A persistent weak layer from late February is buried over a metre deep and it needs more time to fully heal into the snowpack. Potential still exists for a rider to directly trigger this layer or for a smaller wind slab avalanche to act as a trigger.
A persistent weak layer from late February is buried over a metre deep and it needs more time to fully heal into the snowpack. Potential still exists for a rider to directly trigger this layer or for a smaller wind slab or cornice to act as a trigger
A persistent weak layer from late February is buried about a metre deep is still reactive. Potential still exists for a rider to directly trigger this layer or for a smaller wind slab or cornice to act as a trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a small wind slab or cornice fall could act as a natural trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a storm slab or cornice fall could act as a trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a storm slab or cornice fall could act as a trigger.
A weak facet/crust layer from late February has produced several large human triggered avalanches the past few days. Triggering this layer is most likely in shallower areas, but a storm slab or cornice fall could act as a trigger.
A weak layer from February remains a concern. It produced several large human triggered avalanches last weekend, and may still react in shallow areas. Heavy loads such as a storm slab avalanche or a cornice fall are also possible triggers.
A weak layer from February remains a concern. It produced several large human triggered avalanches at the end of March, and may still react in shallow areas. Heavy loads such as a storm slab avalanche or a cornice fall are also possible triggers.
A substantial amount of recent snow has loaded two layers of weak, faceted snow: one is buried around 50 cm and the other near the base of the snowpack. Likely trigger points are unsupported (convex) slopes in shallower snowpack areas.
The new snow will load several layers of weak faceted snow including a layer buried 50 cm deep and another layer near the base of the snowpack. Likely trigger points are unsupported (convex) slopes in shallower snowpack areas.
The new snow is loading several layers of weak faceted snow including a layer buried 50 cm deep and another layer near the base of the snowpack. Likely trigger points are unsupported (convex) slopes in shallower snowpack areas.
40-60 cm of recent snow sits above a weak, faceted lower snowpack. Triggering persistent slabs will become more likely with loading from new snow and wind. Likely trigger points are unsupported slopes in shallower snowpack areas.
A reactive slab has possibly formed above a weak layer of crusts, facets, and surface hoar that formed in February.
A reactive slab has possibly formed above a weak layer of crusts, facets, and surface hoar that formed in February.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers over the past week. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers over the past week. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers over the past week. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers over the past week. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers over the past week. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers over the past week. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
A 20-60 cm thick slab above a rain crust has been reactive to human triggers. Most activity has been in wind-affected terrain. Persistent slabs also have the potential to step down to deep basal weaknesses near the ground.
="s_3FE45715">This layer may become active as facets form on the crust and the snow load increases. Smaller avalanches may &quot;step-down&quot; to this layer.
="s_3FE45715">The mid-November crust is typically down 80-150cm. This appears to be a very isolated problem at the moment but could have major consequences if triggered. The biggest concerns are smaller avalanches stepping down or triggering from a thin area.
A weak layer buried mid-December now lies up to 75cm below the surface and has the potential for large avalanches. It's a tricky one to manage as it's not a problem in all areas. If in doubt, err on the side of caution and to stick to mellow terrain.
A weak layer buried mid-December now lies up to 90cm below the surface and has the potential for large avalanches. It's a tricky one to manage as it's not a problem in all areas. If in doubt, err on the side of caution and to stick to mellow terrain.
A weak layer buried in mid-December has generated some isolated reports of large avalanches. Spotty patches of surface hoar have made it difficult to pinpoint where this layer might react but thin snowpack areas are the most likely.
A weak layer buried in mid-December has generated some reports of large avalanches. Spotty patches of surface hoar have made it difficult to pinpoint where this layer might react but thin snowpack areas in the eastern Selkirks are the most likely.
A weak layer buried in mid-December has produced large avalanches. Spotty patches of surface hoar have made it difficult to pinpoint where this layer might react. Thin snowpack areas in the north and east parts of the region are the most likely.
A weak layer buried in mid-December has produced large avalanches. Triggering this layer is more probably in parts of the region with thinner snowpacks like the north Monashees and east Selkriks.
="s_3FE45715">A weak layer from early February down 50-80 cm remains reactive to human triggering in isolated areas. Smaller avalanches have the potential to step down to this layer.</span><span class="s_3FE45
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 50-80 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 60-90 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">A persistent weakness down 60-90 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this layer.
="s_3FE45715">In the north of the region near Valemount, a persistent weakness down 60-90 cm remains sensitive to light triggers. Smaller avalanches have the potential to step down to this layer.
Areas that have a buried melt-freeze crust and/or facets beneath the recent storm slab may continue to be easy to trigger, and fractures may propagate long distances in the persistent weak layer.
Several persistent weaknesses in the upper snowpack remain a concern, as there is step-down potential the propensity to propagate slab fractures into large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, as there is step-down potential the propensity to propagate slab fractures into large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, as there is step-down potential the propensity to propagate slab fractures into large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, as there is step-down potential the propensity to propagate slab fractures into large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, and there is step-down potential for slab fractures propagating and resulting in large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, and there is step-down potential for slab fractures propagating and resulting in large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, and there is step-down potential for slab fractures propagating and resulting in large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern, and there is step-down potential for slab fractures propagating and resulting in large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern. There is step-down potential resulting in large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern. There is step-down potential resulting in large and dangerous avalanches.
Several persistent weaknesses in the upper snowpack remain a concern. There is step-down potential resulting in large and dangerous avalanches.
Several persistent weaknesses in the snowpack remain a concern. There is step-down potential resulting in large and dangerous avalanches.
Several persistent weaknesses in the snowpack remain a concern. There is step-down potential resulting in large and dangerous avalanches.
Several persistent weaknesses in the snowpack remain a concern. There is step-down potential resulting in large and dangerous avalanches.
="s_DDF6C5E8">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
="s_3FE45715">Various persistent weaknesses throughout the snowpack create the potential for large step down avalanches. Sustained sun exposure or heavy triggers like a cornice fall could trigger a deep and destructive avalanche.
="s_3FE45715">Various persistent weaknesses throughout the snowpack create the potential for large avalanches stepping down to buried weak layers. Sustained sun exposure or heavy triggers like a cornice fall could trigger deep, destructive avalanches.</span><span class="s_3FE45
A weak layer buried mid-December now lies up to 70cm below the surface and has the potential for large avalanches. It's a tricky one to manage as it's not a problem in all areas. If in doubt, err on the side of caution and to stick to mellow terrain.
A weak layer buried mid-December now lies up to 80cm below the surface and has the potential for large avalanches. It's a tricky one to manage as it's not a problem in all areas. If in doubt, err on the side of caution and to stick to mellow terrain.
A mid-December weak layer has generated some isolated reports of large avalanches in the Columbia mountains to the south. This layer exists in the Cariboos as well, and may be easier to trigger in thin snowpack areas on the eastern edge of the range.
A mid-December weak layer has generated some isolated reports of large avalanches in the Columbia mountains to the south. This layer exists in the Cariboos as well, and may be easier to trigger in thin snowpack areas on the eastern edge of the range.
A mid-December weak layer has generated some isolated reports of large avalanches in the Columbia Mountains to the south. This layer exists in the Cariboos as well, and may be easier to trigger in thin snowpack areas on the eastern edge of the range.
50-100 cm of snow sits above a weak layer of facets from mid-December and continues to be reactive in parts of the region that have thinner snowpacks.
50-100 cm of snow sits above a weak layer of facets from mid-December and has recently been reactive in parts of the region with thin snowpacks. Winds slabs may also step down and trigger this layer.
A weak layer of facets from mid-December is buried 50-100 cm deep and has recently been reactive in parts of the region with thin snowpacks.
Triggering a weak layer of facets may still be possible in parts of the region with thin snowpacks. Dig down and test for weak layers before committing to any steep slope.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to any big open steep slope.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to any big open steep slope.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to any big open steep slope.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to larger terrain features.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to larger terrain features.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to larger terrain features.
Triggering a weak layer of facets and/or surface hoar buried mid-December may still be possible in parts of the region where the snowpack is shallower. Dig down and test for weaknesses before committing to larger terrain features.
New loading combined with warming may allow for triggering an avalanche on facets buried in mid-December
Recent new snow combined with warmer temperatures may have increased the load to a critical level over facets and/or surface hoar buried in mid-December
Recent storm loading combined with warmer temperatures has woken up the mid-December weak layer and several large persistent slab avalanches have been reported in the last couple days.
Recent storm loading combined with warmer temperatures has woken up the mid-December weak layer and several large persistent slab avalanches have been reported in the last couple days.
Recent storm loading combined with warmer temperatures has woken up the mid-December weak layer and several large persistent slab avalanches have been reported in the last couple days.
The mid-December facet layer has become reactive and several large persistent slab avalanches were human-triggered in the last couple of days. Even if the surface snow gains strength, deeper weak layers can surprise with nasty consequences.
The mid-December facet layer has become reactive and several large persistent slab avalanches were human-triggered in the last couple of days. Even if the surface snow gains strength, deeper weak layers can surprise with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials over the past couple of days. These deeper weaknesses can with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials over the past couple of days. These deeper weaknesses can with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials over the past couple of days. These deeper weaknesses can with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials over the past week. These deeper weaknesses can still be triggered with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials last week. These deeper weaknesses can still be triggered with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials last week. These deeper weaknesses can still be triggered with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials last week. These deeper weaknesses can still be triggered with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials last week. These deeper weaknesses can still be triggered with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials last week. These deeper weaknesses can still be triggered with nasty consequences.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials last week. These deeper weaknesses will be slow to heal and need to be considered in your terrain selection.
The persistent weakness buried mid-December has been responsible for several large human-triggered slab avalanches and subsequent burials in late January. These deeper weaknesses will be slow to heal and must be considered in your terrain selection.
A persistent weakness buried in mid-December was responsible for several large human-triggered avalanches in late January. Another weakness buried in mid-January produced a remotely triggered avalanche within the last week.
A persistent weakness buried in mid-December was responsible for several large human-triggered avalanches in late January. Another weakness buried in mid-January produced a remotely triggered avalanche within the last week.
A persistent weakness buried in mid-December was responsible for several large human-triggered avalanches in late January. Another weakness buried in mid-January produced a remotely triggered avalanche within the last week.
A persistent weakness buried in mid-December was responsible for several large human-triggered avalanches in late January. Another weakness buried in mid-January produced a remotely triggered avalanche within the last week.
Persistent slab problems may be back in play with the new load that has been added to the snowpack and the upcoming warming. Stick to supported terrain and exercise extra caution where the new snow lies over a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack and the upcoming warming. Stick to supported terrain and exercise extra caution where the new snow lies over a previously shallow snowpack.
Persistent slab problems may be back in play with the new load that has been added to the snowpack and the current warming and sun. Stick to supported terrain and exercise extra caution where the new snow lies over a previously shallow snowpack.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A weak layer from early February down 40-70 cm remains reactive to human triggering in isolated areas. Deeper weak layers in the snowpack also have the potential to wake up this week and very large avalanches are possible in isolated areas.&nbsp; </span><span class="s_AA239
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">A persistent weakness down 40-70 cm remains sensitive to light triggers in isolated areas. Smaller avalanches have the potential to step down to this and deeper persistent weakness resulting very large avalanches.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. The risk of triggering a deeper weak layer will be heightened while overlying storm slabs remain sensitive to human triggering.
="s_3FE45715">Persistent weakness layered throughout the snowpack create the potential for very large step-down avalanches. Heavy loads such as a smaller storm/wind slab avalanche or even a cornice failure will increase the likelihood of triggering these layers.
="s_3FE45715">Various persistent weaknesses throughout the snowpack create the potential for large step down avalanches. Sustained sun exposure or heavy triggers like a cornice fall could trigger a deep and destructive avalanche.
Smaller storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Smaller storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Smaller storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches. Areas harbouring a thin snowpack carry greater potential for triggering a deeply buried weakness.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches. Areas harbouring a thin snowpack carry greater potential for triggering a deeply buried weakness.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches. Areas with a thin snowpack have greater potential for triggering a deeply buried weakness.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches. Areas with a thin snowpack have greater potential for triggering a deeply buried weakness.
Storm slabs may step-down to deeper weak layers, resulting in large, destructive avalanches. Areas with a thin snowpack have greater potential for triggering a deeply buried weakness.
40-70 cm of snow which accumulated over the past week is poorly bonded to the late-February persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be over 1 m thick.
50-80 cm of snow which accumulated over the past week is poorly bonded to the late-February persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be over 1 m thick.
50-80 cm of snow which accumulated over the past week is poorly bonded to the late-February persistent weak layer. These slabs appear to be most reactive in wind loaded terrain where the slab may be over 1 m thick.
50-80 cm of snow from the past week is poorly bonded to the late-February weak layer. Persistent slabs appear to be most reactive in wind loaded terrain where the slab may be over 1 m thick. Ongoing loading will increase potential for deep releases.
60 -100 cm of snow from the past week is poorly bonded to the late-February weak layer. Warming temperatures and incremental loading increase the potential for deep releases. Potential also exists for smaller avalanches to 'step down' to this layer.
60 -100 cm of snow from the past week is poorly bonded to the late-February weak layer. Warming temperatures and incremental loading increase the potential for deep releases. Potential also exists for smaller avalanches to 'step down' to this layer.
60 -100 cm of snow from the past week is poorly bonded to the late-February weak layer. Warming temperatures and incremental loading increase the potential for deep releases. Potential also exists for smaller avalanches to 'step down' to this layer.
60-100 cm of snow from last week is poorly bonded to the late-February weak layer. Ongoing loading from new snow, wind, and rain will increase the potential for deep releases. Potential also exists for smaller avalanches to 'step down' to this layer.
="s_3FE45715">The snowpack has undergone rapid warming and destabilization in the past couple days, and buried persistent weak layers may still be reactive. Smaller avalanches may step down to deeper layers or the sun may trigger a deep release.
="s_3FE45715">The snowpack has undergone rapid warming and destabilization in the past couple days, and buried persistent weak layers may still be reactive. Smaller avalanches may step down to deeper layers or the sun may trigger a deep release.
="s_3FE45715">The storm will also create the potential for very large avalanches on buried persistent weak layers. Smaller avalanches or cornices are likely triggers.
="s_3FE45715">Deep weak layers are under heavy stress after recent loading and warming, creating the potential for large and surprising avalanches.
A layer of surface hoar buried at the end of November has been responsible for fairly widespread avalanche activity in some areas. Where it exists, this layer may persist for quite some time.
Two buried spotty surface hoar layers exist up to a metre down and seem to be most reactive in deeper snowpack areas. Where it they exist, human triggering of large and destructive avalanches may be likely.
Two buried spotty surface hoar layers exist up to a metre down and seem to be most reactive in deeper snowpack areas. Where it they exist, slopes may be primed for human triggering.
A layer of surface hoar buried at the end of November has been responsible for fairly widespread avalanche activity in some areas. Human triggering is still likely, especially on unsupported terrain.
Two buried spotty surface hoar layers exist up to a metre down and seem to be most reactive in deeper snowpack areas. Where it they exist slopes may be ripe for human triggering, especially on unsupported terrain.
="s_3FE45715">A buried layer of weak surface hoar exists 100cm below the snow surface in sheltered locations between 1500 and 2200m. This concern seems to be isolated to the most southern portions of the region .
A layer of surface hoar buried at the end of November has been responsible for fairly widespread avalanche activity in some areas. Human triggering is still likely, especially on unsupported terrain.
Buried surface hoar layers exist in specific locations in the upper metre of the snowpack Rider triggers are likely where this layer sits. Suspect slopes may be sheltered treeline/ below treeline terrain and  most reactive in deeper snowpack areas.
A layer of surface hoar buried at the end of November has been responsible for fairly widespread avalanche activity in some areas. Rider triggering is still likely, especially on convex rolls, and unsupported terrain.
The storm slab is not bonding well to the melt-freeze crust that formed during early December. This crust is found below about 1800 metres.
The storm slab is not bonding well to the melt-freeze crust that formed during early December. This crust is found below about 1800 metres. Expect any steep or unsupported feature to release down to the crust.
A persistent weak layer of surface hoar, buried 60-80 cm below the surface, has been reported from around Shames. The chance of avalanche activity on this layer will increase as the slab above it gets stiffer.
The storm slab is not bonding well to the melt-freeze crust that formed during early December. This crust is found below about 1800 metres. Expect any steep or unsupported feature to release down to the crust.
A persistent weak layer of surface hoar, buried 60-80 cm below the surface, has been reported from around Shames. The chance of avalanche activity on this layer will increase as the slab above it gets stiffer.
A persistent weak layer of surface hoar, buried 60-80 cm below the surface, has been reported from around Shames. The chance of avalanche activity on this layer may increase as the slab above it gets stiffer.
If the wind stiffens the storm slab above the early December rain crust, it may be possible to trigger this weak layer which is now buried below the recent 60-80 cms of storm snow. This crust is found below 1800 metres.
A persistent weak layer of surface hoar, buried 60-80 cm below the surface has been reported from around Shames. Although triggering seems less likely, watch for convex rolls in sheltered areas where the SH may have been preserved.
A persistent weak layer of surface hoar, buried 60-80 cm below the surface has been reported from around Shames. Although triggering seems less likely, watch for convex rolls in sheltered areas where the SH may have been preserved.
="s_3FE45715">A weak layer of surface hoar and/or facetted snow exists under the recent storm snow and has been susceptible to human triggering.
="s_3FE45715">Up to 60 cm of storm snow sits on a weak layer of surface hoar and/or sugary facets and may be triggered by light loads. It may also be possible to trigger this weakness from a distance or in relatively low angle terrain.
="s_3FE45715">Up to 80 cm of snow sits on a weak layer consisting of surface hoar, a crust, and/or sugary facets. This weakness may be triggered by light loads, from a distance, and in relatively low angle terrain.
="s_3FE45715">A weak layer of surface hoar and/or facetted snow exists under the recent storm snow and has been susceptible to human triggering.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered easily, or even from a distance. Avalanches could be surprisingly large.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered from a distance and avalanches could be surprisingly large.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered from a distance and avalanches could be surprisingly large.
="s_3FE45715">It may be possible to trigger avalanches that release on a weak layer of surface hoar or facetted snow down 50-70 cm.
="s_3FE45715">A weak layer of surface hoar and/or facetted snow exists under the recent storm snow and has been susceptible to human triggering.
="s_3FE45715">Up to 80 cm of snow sits on a weak layer consisting of surface hoar, a crust, and/or sugary facets. This weakness may be triggered by light loads, from a distance, and in relatively low angle terrain.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered from a distance and avalanches could be surprisingly large.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered from a distance and avalanches could be surprisingly large.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Around </span><span class="s_1681A555">50 cm of settled storm snow rests on a variety of weak surfaces. These weaknesses are MOST PRONOUNCED AT AND BELOW TREELINE.  The trees are not the safe haven they usually are.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">50 cm of settled storm snow rests on a variety of weak surfaces. These weaknesses are </span><span class="s_2823317B">MOST PRONOUNCED AT AND BELOW TREELINE</span><span class="s_AA239A9B">.  The trees are not the safe haven they usually are.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered easily, or even from a distance. Avalanches could be surprisingly large.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Around </span><span class="s_1681A555">50 cm of settled storm snow rests on a variety of weak surfaces. This interface is weakest at and below treeline.
1681A555">Storm snow is settling into a cohesive slab 30 - 100 cm in depth.  This slab rests on a mixed bag of weak layers that when triggered may result in large avalanches.
="s_3FE45715">It may be possible to trigger avalanches that release on a weak layer of surface hoar or facetted snow down 40-70 cm.
="s_3FE45715">Up to 80 cm of snow sits on a weak layer consisting of surface hoar, a crust, and/or sugary facets. This weakness may be triggered by light loads, from a distance, and in relatively low angle terrain.
="s_3FE45715">A weak layer of surface hoar and/or facetted snow exists under the recent storm snow and has been susceptible to human triggering.
="s_3FE45715">Recent storm slabs are slowly settling, but they may still be touchy in areas where surface hoar is buried. This weakness may be triggered from a distance and avalanches could be surprisingly large.
="s_3FE45715">Storm snow is particularly reactive where it overlies buried surface hoar. This weakness may be triggered from a distance and avalanches could be surprisingly large.
="s_3FE45715">Recent storm slabs are slowly settling, but they may still be touchy in areas where surface hoar is buried. This weakness may be triggered from a distance and avalanches could be surprisingly large.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The storm snow has settled out nicely and the likelihood of triggering has greatly decreased. I suspect it's still possible to trigger an avalanche failing on the Jan. 4th interface in steep rocky and/or convex terrain.</span><span class="s_DDF6C
="s_DDF6C5E8">The 50 - 100 cm of storm snow has settled out nicely and the likelihood of triggering has greatly decreased. I suspect it's still possible to trigger an avalanche failing on the Jan. 4th interface in steep rocky and/or convex terrain.
="s_DDF6C5E8">The 50 - 100 cm of storm snow has settled out nicely and the likelihood of triggering has greatly decreased. I suspect it's still possible to trigger an avalanche failing on the Jan. 4th interface in terrain that is steep rocky and/or convex.
1681A555">The 40 - 90 cm of storm snow has settled out nicely and the likelihood of triggering has greatly decreased. I suspect it's still possible to trigger an avalanche failing on the Jan. 4th interface in terrain that is steep rocky and/or convex.
1681A555">The 40 - 90 cm of storm snow has settled out nicely and the likelihood of triggering has greatly decreased. I suspect it's still possible to trigger an avalanche failing on the Jan. 4th interface in terrain that is steep rocky and/or convex.
="s_3FE45715">Warm temperatures and solar radiation will increase the probability of avalanches releasing on a buried weak layer of surface hoar, facets, and/or a crust.
="s_3FE45715">A buried weakness, down 40-80 cm, could wake up as temperatures rise above zero early this week.
="s_3FE45715">A buried weak layer of surface hoar and/or facetted, down 70-90 cm, could wake up as temperatures rise rapidly early this week. Be particularly cautious on southerly aspects if the sun is also shining.
="s_DDF6C5E8">The 50 - 100 cm of storm snow has settled out nicely and the while likelihood of triggering has greatly decreased I suspect it's still possible to trigger an avalanche failing on the Jan. 4th interface in terrain that is steep rocky and/or convex.
="s_DDF6C5E8">Likely not much of an issue right now, it has the potential to spring back to life with the big forecasted warm up.
="s_3FE45715">Be aware of rapid warming and solar radiation forecasted as soon as tomorrow which will weaken the snow surface, possibly triggering an avalanche on the surface hoar layer down 80-120 cm. 
="s_3FE45715">Be aware of rapid warming and solar radiation forecasted early this week which will most likely weaken the snow surface, possibly triggering an avalanche on the surface hoar layer down 80-120 cm.
="s_3FE45715">Likely not much of an issue right now, it has the potential to spring back to life with the big forecasted warm up.
="s_3FE45715">Be aware of rapid warming and solar radiation forecasted early this week which will weaken the snow surface, possibly triggering an avalanche on the surface hoar layer down 80-120 cm. 
="s_3FE45715">Warm temperatures and solar radiation will increase the probability of avalanches releasing on a buried weak layer of surface hoar, facets, and/or a crust, down 40-70 cm.&nbsp;
="s_3FE45715">A buried weakness, down 40-80 cm, could wake up as temperatures rise above zero early this week.
="s_3FE45715">Warm temperatures will increase the likelihood of triggering the late December persistent weakness, down 60-90 cm.
="s_3FE45715">I suspect this layer will spring back to life when the warm temps and sunshine come out Tuesday. Slopes that didn't slide in the last cycle are of particular concern.  Pull back to simple terrain without overhead hazard as soon as it warms up.
="s_3FE45715">I suspect this layer will spring back to life when the warm temps and sunshine come out Tuesday. Slopes that didn't slide in the last cycle are of particular concern.  Pull back to simple terrain without overhead hazard as soon as it warms up.
="s_3FE45715">I suspect this layer will spring back to life when the warm temps and sunshine come out Tuesday. Slopes that didn't slide in the last cycle are of particular concern.  Pull back to simple terrain without overhead hazard as soon as it warms up.
="s_3FE45715">Be aware of rapid warming and solar radiation forecasted tomorrow and Wednesday which will most likely weaken the snow surface, possibly triggering an avalanche on the surface hoar layer down around 80 cm.
="s_3FE45715">I suspect this layer will spring back to life when the warm temps and sunshine come out Tuesday. Slopes that didn't slide in the last cycle are of particular concern.  Pull back to simple terrain without overhead hazard as soon as it warms up.
="s_3FE45715">Be aware of rapid warming and solar radiation which will weaken the snow surface, possibly triggering an avalanche on the surface hoar layer down 80-120 cm.
="s_3FE45715">Be aware of rapid warming and solar radiation which will weaken the snow surface, possibly triggering an avalanche on the surface hoar layer down around 80 cm.
="s_3FE45715">Persistent weaknesses are variable in their distribution, but can still be triggered by the weight of a person or snowmobile. Triggering persistent slabs will become more likely if the snowpack experiences rapid warming.
="s_3FE45715">Persistent weaknesses are variable in their distribution, but can still be triggered by the weight of a person or snowmobile. Triggering persistent slabs will become more likely if the snowpack experiences rapid warming.
="s_3FE45715"> Persistent </span><span class="s_3FE45715">weaknesses are buried at a prime depth for human triggering. Triggering persistent slabs will become more likely if the snowpack experiences rapid warming. </span><span class="s_3FE45
="s_3FE45715">Persistent weaknesses are variable in their distribution but can still be triggered by the weight of a person or snowmobile. Triggering persistent slabs will become more likely if the snowpack experiences rapid warming.</span><span class="s_3FE45
="s_3FE45715">A buried weakness, down 40-80 cm, has been active as a result of intense daytime warming.
New snow will add additional load to buried weak layers. Watch for triggering in steeper, unsupported terrain.
="s_3FE45715">Warm temperatures are expected increase the likelihood of triggering the late December persistent weakness.
="s_3FE45715">This layer may increase in reactivity at higher elevations with forecast inversions. Slopes that didn't slide during the last cycle are of particular concern. Make conservative terrain choices, particularly if significant warming develops.
="s_3FE45715">This layer may spring back to life if warm temperatures and sunshine develop. Slopes that didn't avalanche during the last cycle are of particular concern. Pull back to simple terrain without overhead hazard if warming occurs.
="s_3FE45715">Warm temperatures and solar radiation will increase the probability of avalanches releasing on a buried weak layer of surface hoar, facets, and/or a crust, down 40-70 cm. 
="s_3FE45715">This layer may spring back to life if warm temperatures and sunshine develop. Slopes that didn't slide in the last avalanche cycle are of particular concern. Pull back to simple terrain without overhead hazard if it warms up.
="s_3FE45715">Warm temperatures and solar radiation will increase the probability of avalanches releasing on a buried weak layer of surface hoar, facets, and/or a crust, down 40-70 cm.
="s_3FE45715">A buried weakness, down 40-80 cm, has been active as a result of intense daytime warming.
="s_3FE45715">Heavy loading by new snow and wind may overload the late December persistent weakness and result in large and destructive avalanches.
="s_3FE45715">Persistent weaknesses are variable in their distribution but can still be triggered by the weight of a person or snowmobile.
="s_3FE45715">Persistent weaknesses are variable in their distribution, but can still be triggered by the weight of a person or snowmobile.
="s_3FE45715">Persistent weaknesses are variable in their distribution, but can still be triggered by the weight of a person or snowmobile.
Forecast snowfall will add additional load to buried weak layers. Watch for triggering in steeper, unsupported terrain.
="s_3FE45715"> Persistent weaknesses are buried at a prime depth for human triggering. Triggering persistent slabs is most likely on south-facing slopes and in sheltered terrain below treeline.
="s_3FE45715">Slopes that didn't slide during last week's avalanche cycle are of particular concern. Although the likelihood of a slide has decreased, the potential consequences remain significant. Triggering may become more likely on sun-exposed slopes.
="s_3FE45715">Slopes that didn't slide in the last avalanche cycle are of particular concern. Watch for triggering on unsupported terrain.
="s_3FE45715">Slopes that didn't avalanche during the last cycle are of particular concern. Watch for triggering on unsupported terrain.
="s_3FE45715">Triggering persistent slabs is most likely on south-facing slopes and in sheltered terrain below treeline.
="s_3FE45715">Persistent weaknesses are variable in their distribution but may still be triggered by the weight of a person or snowmobile.
="s_3FE45715">Persistent weaknesses are variable in their distribution, but may still be triggered by the weight of a person or snowmobile.
="s_3FE45715">Persistent weaknesses are variable in their distribution, but may still be triggered by the weight of a person or snowmobile.
="s_3FE45715">Warm temperatures and solar radiation will increase the probability of avalanches releasing on a buried weak layer of surface hoar, facets, and/or a crust, down 40-70 cm.
="s_3FE45715">Heavy loading by new snow and wind may overload the late December persistent weakness and result in large and destructive avalanches.
="s_3FE45715">While unlikely, slopes that didn't slide in the last avalanche cycle may still be of concern this weekend.  Triggering is most likely in areas that go from thick to thin in steep unsupported terrain.
="s_3FE45715">While unlikely, slopes that didn't slide in the last avalanche cycle may still be of concern this weekend.  Triggering is most likely in areas that go from thick to thin in steep unsupported terrain.
="s_3FE45715">A buried weakness, down 40-80 cm, may become reactive as a result of intense daytime warming.
Forecast snowfall will add additional load to buried weak layers. Watch for triggering in sheltered, unsupported terrain.
="s_3FE45715">Slopes that didn't slide during last week's avalanche cycle are still of concern. Triggering of this layer is most likely in steep unsupported terrain. Triggering may become more likely in the afternoon on sun exposed slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach to steep south-facing slopes and sheltered terrain below treeline is still advised.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach to steep south-facing alpine slopes and sheltered terrain below treeline is still advised.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach is still advised. Take extra care on steep south-facing alpine slopes and in sheltered terrain below treeline.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach is still advised. Carefully assess steep south-facing slopes and slopes below about 1900 m, where persistent weaknesses are most likely to be lurking.</span><span class="s_3FE45
="s_3FE45715">Warm temperatures and solar radiation may increase the probability of avalanches releasing on a buried weak layer of surface hoar, facets, and/or a crust, down 40-70 cm.
="s_3FE45715">A buried weakness, down 40-80 cm, may become more reactive as a result of daytime warming. Watch for triggering
="s_3FE45715">There has been no new activity reported on this layer. Having said that, the weakness still exist with the potential to produce large avalanches.
A layer of surface hoar buried at the end of December may still be reactive. Watch for triggering in sheltered, unsupported terrain.
="s_3FE45715">Slopes that didn't slide during last week's avalanche cycle are still of concern. Triggering of this layer is most likely in steep unsupported terrain. Triggering may become more likely in the afternoon on sun exposed slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">
="s_3FE45715">While unlikely, slopes that didn't slide in the last avalanche cycle may still be of concern this weekend. Triggering is most likely in areas that go from thick to thin in steep unsupported terrain.
="s_3FE45715">While unlikely, slopes that didn't slide in the last avalanche cycle may still be of concern this weekend. Triggering is most likely in areas that go from thick to thin in steep unsupported terrain.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach is still advised. Take extra care on steep south-facing alpine slopes and in sheltered terrain below treeline.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach to steep south-facing slopes and sheltered terrain below treeline is still advised.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach is still advised. Carefully assess steep south-facing slopes and slopes below about 1900 m, where persistent weaknesses are most likely to be lurking.
="s_3FE45715">Triggering persistent slabs is becoming less likely, but a cautious approach to steep south-facing alpine slopes and sheltered terrain below treeline is still advised.
="s_3FE45715">A cautious approach is recommended on steep south-facing slopes and sheltered terrain below treeline with daytime warming and solar radiation possibly weakening the snowpack.
="s_3FE45715">A very cautious approach is recommended on steep south-facing slopes and sheltered terrain below treeline with daytime warming and solar radiation possibly weakening the snowpack.
="s_3FE45715">A very cautious approach is recommended on steep south-facing slopes and sheltered terrain below treeline with daytime warming and solar radiation possibly weakening the snowpack.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline.
="s_3FE45715">Slopes that didn't slide during last week's avalanche cycle are still of concern. Triggering of this layer is most likely in steep unsupported terrain. Triggering may become more likely in the afternoon on sun exposed slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">
="s_3FE45715">While unlikely, slopes that didn't slide in the last avalanche cycle may still be of concern this weekend. Triggering is most likely in areas that go from thick to thin in steep unsupported terrain.
="s_3FE45715">A cautious approach is recommended on steep S facing slopes and sheltered terrain below treeline with forecasted mild temperatures and solar radiation.
="s_3FE45715">While unlikely, slopes that didn't slide in the last avalanche cycle may still be of concern this weekend. Triggering is most likely in areas that go from thick to thin in steep unsupported terrain.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline with forecasted mild temperatures and solar radiation.
="s_3FE45715">A very cautious approach is recommended on steep south-facing slopes and sheltered terrain below treeline with daytime warming and solar radiation possibly weakening the snowpack.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer. Distribution is patchy in sheltered areas and has been more reactive on S and SW aspects.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer.  Distribution is patchy in sheltered areas and has been more reactive on S and SW aspects.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer.&nbsp; Distribution is patchy in sheltered areas and has been more reactive on S and SW aspects.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer.  Distribution is patchy in sheltered areas and has been more reactive on S and SW aspects.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer. Distribution is patchy in sheltered areas and has been more reactive on S and SW aspects.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer. Distribution is patchy in sheltered areas and has been more reactive on S and SW aspects.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer. Distribution is patchy in sheltered areas and has been more reactive below treeline.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer. Distribution is patchy but has been more reactive below treeline.
="s_3FE45715">The load from the storm snow could awaken the early January surface hoar layer. Distribution is patchy but has been more reactive below treeline.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline.
="s_3FE45715">While unlikely, it may still be possible to trigger this layer on the odd slope.  I'm thinking about a steep rocky slope with a snowpack thinner than the regional average.  Sensitivity may increase slightly Monday with warm temps and direct sun.
="s_3FE45715">Watch steep southerly facing slopes (buried suncrust) and shady sheltered glades (buried surface hoar)
="s_3FE45715">Early January surface hoar layer is patchy but has been more reactive below treeline in shaded areas.
="s_3FE45715">The early January surface hoar layer which is located below treeline under around 80 cm of snow, has started to be reactive again in the Cariboo region in an area located near the boundary of the North Columbia region.
="s_3FE45715">Watch steep southerly facing slopes (buried suncrust) and shady sheltered glades (buried surface hoar)
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. The upper one is more widespread and touchy compared with the lower one.
="s_3FE45715">A cautious approach is recommended on steep S slopes and sheltered terrain below treeline.
="s_3FE45715">Early January surface hoar layer is patchy but has been more reactive below treeline, especially logging cut blocks.
="s_3FE45715">The early January surface hoar layer which is located mostly below treeline under around 80 cm of snow, has started to be reactive again in the Cariboo region in an area located near the boundary of the North Columbia region.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. The upper one is more widespread and touchy compared with the lower one.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. The upper one is more widespread and touchy compared with the lower one.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
="s_3FE45715">Recent storm snow is sitting above sun crusts, wind slabs, and other hard surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow.
="s_3FE45715">A mixed bag of weak interfaces is buried about 40 cm down. With forecast warming temperatures, it’s possible that the snow above will form into a more cohesive slab over the next few days.
40-60 cms of storm snow is sitting above a mix of hard old surfaces and areas of soft facetted snow. Some areas may have a weak layer between the old surface and the recent storm snow.
Over the past week up to meter of new snow has fallen on a crust/facet/surface hoar interface. This interface may be found most reactive in sheltered areas over convex rolls or steep terrain. Dig down and see how reactive it is in your riding area.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
40-60 cms of storm snow is sitting above a mix of hard old surfaces and areas of soft facetted snow. Some areas may have a weak layer between the old surface and the recent storm snow.
="s_3FE45715">Recent storm snow is sitting above sun crusts, wind slabs, and other hard surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces. This slab may become more reactive during the forecast warm temperatures and solar radiation.
Over the past week up to meter of new snow has fallen on a crust/facet/surface hoar interface. This interface may be found most reactive in sheltered areas over convex rolls or steep terrain. Dig down and see how reactive it is in your riding area.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features.
Buried down 20-50 cm exists a surface hoar/crust/facet layer. This layer has been reactive in sheltered locations over convex rolls and steeper terrain features.
="s_3FE45715">A mixed bag of weak interfaces is buried about 40 cm down. As temperatures rise, the likelihood of triggering a persistent slab may increase.
="s_3FE45715">A mixed bag of weak interfaces is buried about 70 cm down. With forecast warming temperatures, the likelihood of triggering a persistent slab may increase.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A mixed bag of weak interfaces is buried about 20-30 cm down. With forecast warming temperatures, the likelihood of triggering a slab may increase.
="s_3FE45715">A mixed bag of weak interfaces is buried about 70 cm down. With forecast warming temperatures, the likelihood of triggering a persistent slab may increase.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A mixed bag of weak interfaces is buried about 20-30 cm down. With forecast warming temperatures, the likelihood of triggering a slab may increase.
="s_3FE45715">A mixed bag of weak interfaces is buried about 40 cm down. As temperatures rise, the likelihood of triggering a persistent slab may increase.
Buried down 20-50 cm exists a surface hoar/crust/facet layer. This layer has been reactive in sheltered locations over convex rolls and steeper terrain features. With warming, this layer may become more reactive.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features. This layer may become more reactive with warming.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
="s_3FE45715">Recent storm snow is sitting above sun crusts, wind slabs, and other hard surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow.
Storm slabs may become more reactive with forecast solar radiation and possible above freezing temperatures in the alpine.
Over the past week up to meter of new snow has fallen on a crust/facet/surface hoar interface. This interface may be found most reactive in sheltered areas over convex rolls or steep terrain. Dig down and see how reactive it is in your riding area.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces. This slab may become more reactive during the forecast warm temperatures and solar radiation.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features.
="s_3FE45715">Two surface hoar layers lie buried under the surface, one approximately 40cm down and the other approximately 80cm down. Both are reported to be patchy and variable in distribution. Most likely triggered on steep convex rolls at treeline or below.
="s_3FE45715">Recent storm snow is sitting above sun crusts, wind slabs, and other hard surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow.
The recent storm slab has settled into a cohesive slab that can be triggered by skiers or sledders. Fractures are propagating farther and avalanche size has increased.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces. This slab may become more reactive during the forecast warm temperatures and solar radiation.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
Up to 80 cm sits above a persistent weakness comprising of a crust/facet/surface hoar interface. This interface may be found most reactive in sheltered areas over convex rolls or steep terrain. Dig down and see how reactive it is in your riding area.
="s_3FE45715">A mixed bag of weak interfaces is buried about 40 cm down. The nature of these weaknesses may vary considerably from slope to slope.
="s_3FE45715">A mixed bag of weak interfaces is buried about 70 cm down. The nature of these weaknesses varies greatly from place to place.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A mixed bag of weak interfaces is buried about 20-30 cm down. The nature of these weaknesses varies greatly from valley to valley.
="s_3FE45715">Recent storm snow is sitting above sun crusts, wind slabs, and other hard surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow.
The recent storm slab continues to be reactive above variable sliding surfaces.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces. This slab may become more reactive during the forecast warm temperatures below treeline.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A mixed bag of weak interfaces is buried about 15-30 cm down. The nature of these weaknesses varies greatly from valley to valley.
="s_3FE45715">A mixed bag of weak interfaces is buried about 40 cm down. The nature of these weaknesses may vary considerably from slope to slope.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features at treeline and below.
Up to 80 cm sits above a persistent weakness comprising of a facet/surface hoar interface above 1000m and a crust below 1000m. The rain soaked surface snow at lower elevations will be particularly reactive.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts.
="s_3FE45715">50-70 cm slab is sitting on a variety of old surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow will add load to these interfaces.
Forecast snow and strong winds will put an additional load on weak layers. They continue to be reactive above variable sliding surfaces that are down 40-80 cm below the surface.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features at treeline and below.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A mixed bag of weak interfaces is buried about 15-30 cm down. The nature of these weaknesses varies greatly from valley to valley.
Up to 100 cm sits above a persistent weakness comprising of a facet/surface hoar interface above 1000m and a crust below 1000m. The lingering moist snow below the recently formed surface crust at lower elevations may be more reactive.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
="s_3FE45715">A mixed bag of weak interfaces is buried about 40 cm down. The nature of these weaknesses varies considerably from slope to slope.
Forecast snow and strong winds will put an additional load on weak layers. They continue to be reactive above variable sliding surfaces that are down 40-80 cm below the surface.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts.
="s_3FE45715">50-70 cm slab is sitting on a variety of old surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow will add load to these interfaces.
50-70 cm slab is sitting on a variety of old surfaces that were left after the dry period of mid-January. These layers comprise of buried crusts on solar aspects and surface hoar in sheltered polar aspects.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features at treeline and below.
Persistent weaknesses in the upper snowpack (Jan. 17 crust &amp; a deeper facet/surface hoar interface) may linger. Local investigation to test the distribution and reactivity of these layers is a good idea before committing to steep slopes.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
="s_3FE45715">A mixed bag of weak interfaces is buried between 35 and 50cm below the surface. Triggering may be more likely in unsupported terrain where the overlying slab has been wind-affected.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features at treeline and below.
The Jan.17 layer (down 60-100cm) still shows sudden results and a propensity for propagation in some snowpack tests. Local investigation to test the distribution and reactivity of these layers is a good idea before committing to steep slopes.
="s_3FE45715">50-70 cm slab is sitting on a variety of old surfaces that were left after the dry period of mid-January. These layers comprise of buried crusts on solar aspects and surface hoar in sheltered polar aspects.</span><span class="s_3FE45
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
="s_3FE45715">50-70 cm slab is sitting on a variety of old surfaces that were left after the dry period of mid-January. There may be a weak layer of facets or surface hoar between the old sliding surface and the recent storm snow will add load to these interfaces.
="s_3FE45715">An assortment of weak crystals is buried between 35 and 50cm below the surface. Although this interface is gaining strength, triggering may still be possible in unsupported terrain.
Persistent slabs continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets that are buried down 40-80 cm below the surface.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. This layer of concern seems to be most reactive in sheltered locations over convex rolls and steeper terrain features at treeline and below.
The Jan.17 layer (down 60-100cm) still shows sudden results and a propensity for propagation in some snowpack tests. Local investigation to test the distribution and reactivity of this layer is a good idea before committing to steep slopes.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They are easily triggered by the weight of a skier or a machine.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface.
="s_3FE45715">New storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
="s_3FE45715">New storm snow adds to the depth (50-80 cm) of the slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
="s_3FE45715">An assortment of weak crystals is buried between 35 and 50cm below the surface. Although this interface is gaining strength, triggering may still be possible in unsupported terrain.
Various crust layers in the upper snowpack (location specific) still shows sudden results and a propensity for propagation in snowpack tests. Local investigation to test distribution and reactivity is a good idea before committing to steep slopes.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
An assortment of weak crystals is buried between 35 and 50cm below the surface. Although this interface is gaining strength, triggering may still be possible in unsupported terrain.
Buried down 30-60 cm exists a surface hoar/crust/facet layer. Although unlikely to trigger, it may still be possible in convex features.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface.
="s_3FE45715">New storm snow adds to the depth (50-80 cm) of the slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They are easily triggered by the weight of a skier or a machine.
="s_3FE45715">New storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
An assortment of weak crystals is buried between 35 and 50cm below the surface. Although this interface is gaining strength, triggering may still be possible in unsupported terrain.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface. They can be tricky to manage.
="s_3FE45715">New storm snow adds to the depth (50-80 cm) of the slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
="s_3FE45715">New storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They are easily triggered by the weight of a skier or a machine.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface. They can be tricky to manage.
="s_3FE45715">New storm snow adds to the depth (50-80 cm) of the slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs may to be reactive to rider triggers and can be difficult to predict.
="s_3FE45715">Recent storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They may be triggered by the weight of a skier or a machine.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
An assortment of weak crystals is buried between 35 and 50cm below the surface. Although this interface is gaining strength, triggering may still be possible in unsupported terrain.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
An assortment of weak crystals is buried between 35 and 50cm below the surface. Although this interface is gaining strength, triggering may still be possible in unsupported terrain.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They may be triggered by the weight of a skier or a machine.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface. They can be tricky to manage.
="s_3FE45715">A persistent weak layer of surface hoar, crusts and/or facets lurks around 80 cm deep. This weakness may be reactive to human triggers and can be difficult to predict.
="s_3FE45715">Recent storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They may be triggered by the weight of a skier or a machine.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface.
="s_3FE45715">A persistent weak layer of surface hoar, crusts and/or facets lurks around 80 cm deep. This weakness may be reactive to human triggers and can be difficult to predict.
="s_3FE45715">Recent storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
Persistent slabs are 40-80 cm thick and continue to be reactive above variable sliding surfaces comprising of surface hoar, crusts and facets. They may be triggered by the weight of a skier or a machine.
="s_3FE45715">A persistent weak layer of surface hoar, crusts and/or facets lurks around 80 cm deep. This weakness may be reactive to human triggers and can be difficult to predict.
The recent storm snow continues to settle into a cohesive slab above weak layers and variable old surfaces that comprise of buried wind slabs, surface hoar, and crusts. These weak layers exist 30-50 cm below the surface.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
="s_3FE45715">Recent storm snow adds to the depth 50-80 cm slab that is sitting on a variety of old surfaces comprising of surface hoar, crusts and facets. Persistent slabs continue to be reactive to rider triggers and can be difficult to predict.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or wind/storm slab avalanches in motion.
="s_3FE45715">There are older layers of buried surface hoar and crusts that are buried down about 80-110 cms. These layers continue to show results in snow profile tests and may be triggered by large additional loads.
="s_3FE45715">There are older layers of weak surface hoar and crusts that are buried deeper in the snowpack. These layers are down approximately 60-70 cms and 100 cms, and may be triggered by large additional loads.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
="s_3FE45715">There are older layers of buried surface hoar and crusts that are buried down about 80-110 cms. These layers continue to show results in snow profile tests and may be triggered by large additional loads.
="s_3FE45715">There are older layers of weak surface hoar and crusts that are buried deeper in the snowpack. These layers are down approximately 60-70 cms and 100 cms, and may be triggered by large additional loads.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or wind/storm slab avalanches in motion.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or wind/storm slab avalanches in motion.
="s_3FE45715">There are older layers of buried surface hoar and crusts that are buried down about 80-110 cms. These layers continue to show results in snow profile tests and may be triggered by large additional loads.
="s_3FE45715">There are older layers of weak surface hoar and crusts that are buried deeper in the snowpack. These layers are down approximately 60-70 cms and 100 cms, and may be triggered by large additional loads.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or wind/storm slab avalanches in motion.
="s_3FE45715">There are older layers of weak surface hoar and crusts that are buried deeper in the snowpack. These layers are down approximately 60-70 cms and 100 cms, and may be triggered by large additional loads.
="s_3FE45715">There are older layers of buried surface hoar and crusts that are buried down about 80-110 cms. These layers continue to show results in snow profile tests and may be triggered by large additional loads.
Buried beneath the new snow sits a surface hoar/crust/facet weakness. This may be sensitive to rider triggers in steeper sheltered terrain or over convex rolls, especially at treeline and below treeline elevations.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or wind/storm slab avalanches in motion.
="s_3FE45715">There are older layers of buried surface hoar and crusts that are buried down about 80-110 cms. These layers continue to show results in snow profile tests and may be triggered by large additional loads.
="s_3FE45715">There are older layers of weak surface hoar and crusts that are buried deeper in the snowpack. These layers are down approximately 60-70 cms and 100 cms, and may be triggered by large additional loads.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
Buried beneath the new snow sits a surface hoar/crust/facet weakness down 40 - 100 cm. This may be sensitive to rider triggering in steeper sheltered terrain or over convex rolls, especially at treeline elevations.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or a slab avalanche in motion.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
="s_3FE45715">There are older layers of buried surface hoar and crusts that are buried down about 80-110 cms. These layers continue to show results in snow profile tests and may be triggered by large additional loads.
="s_3FE45715">There are older layers of weak surface hoar and crusts that are buried deeper in the snowpack. These layers are down approximately 60-70 cms and 100 cms, and may be triggered by large additional loads.
Buried beneath the new snow sits a surface hoar/crust/facet weakness down 40 - 100 cm. This may be sensitive to rider triggering in steeper sheltered terrain or over convex rolls, especially at treeline elevations.
Up to 40 cm of settled storm snow sits on the Feb. 12 surface hoar or sun crust. Additional loading from snow and wind or the weight of a person could be enough to trigger this weak layer.
An average of 50 cm of recent storm snow sits on a persistent weak layer of surface hoar and/or a sun crust. More snow is in the forecast which could be enough load to result in a natural avalanche cycle.
There are older layers of buried surface hoar and crusts that are unlikely to be triggered by the weight of a skier or sledder, but may be triggered by large additional loads like cornice fall or a slab avalanche in motion.
There are a couple of older layers of buried surface hoar and crust combinations that are buried down about 70 cms and 100 cms, that may be triggered by large additional loads.
Addition loading from new snow and wind may overload the February 12 persistent weak layer and result in large avalanches.
Additional loading from snow and wind, or the weight of a person could be enough to trigger the February 12 persistent weak layer.
Buried beneath the new snow sits a surface hoar/crust/facet weakness down 40 - 100 cm. This may be sensitive to rider triggering in steeper sheltered terrain or over convex rolls, especially at treeline elevations.
Friday's storm will add additional stress to a persistent weak layer of surface hoar or a sun crust which both currently lie up to 55cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
Loading from new snow and wind will likely add reactivity to persistent buried surface hoar layers. In higher snowfall areas, resulting avalanches may be surprisingly large and destructive.
Additional loading from snow and wind, or the weight of a person could be enough to trigger the February 12 persistent weak layer.
Addition loading from new snow and wind may overload the February 12 persistent weak layer and result in large avalanches.
Buried beneath the new snow sits a surface hoar/crust/facet weakness down 40 - 100 cm. This may be sensitive to rider triggering in steeper sheltered terrain or over convex rolls, especially at treeline elevations.
Storm loading has added additional stress to a persistent weak layer of surface hoar or a sun crust which now lie up to 80cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
Loading from new snow and wind will likely add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be surprisingly large.
Buried beneath the new snow sits a surface hoar/crust/facet weakness down 50 - 100 cm. This may be sensitive to rider triggering in steeper sheltered terrain or over convex rolls, especially at treeline elevations.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.</span><span class="s_AA239
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.</span><span class="s_AA239
Storm loading has added additional stress to a persistent weak layer of surface hoar or a sun crust which now lie up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
Loading from new snow and wind will continue to add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be surprisingly large.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer. This layer has been most reactive at and below treeline.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer. This layer seems most reactive at and below treeline.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be surprisingly large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Storm loading has added additional stress to a persistent weak layer of surface hoar or a sun crust which now lie up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer. This layer seems most reactive at and below treeline.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down close to 100 cm in some areas. This weakness has been susceptible to triggering by light loads or from a distance, particularly in sheltered areas at and below treeline.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
A weak layer of surface hoar buried on February 12th continues to react to skier triggering, particularly in the north of the region. See the forecast details page for recent incident reports.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies up to 100cm below the surface. Triggering this weakness may result in surprisingly large avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down close to 100 cm in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
An assortment of persistent weaknesses lurk in the top 100cm. Most notably is surface hoar buried early last week, which is most concerning in sheltered treeline areas.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies up to 100cm below the surface. Triggering this weakness may result in large and dangerous avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down close to 100 cm in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weaknesses buried last week</span><span class="s_AA239A9B"> demand respect, as they are very touchy and are causing surprisingly large avalanches.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weaknesses buried last week demand respect, as they are very touchy, can be triggered from a distance, and are leading to surprisingly large avalanches. </span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weaknesses buried last week</span><span class="s_AA239A9B"> demand respect, as they are very touchy and are causing surprisingly large avalanches.
="s_3FE45715">Persistent weaknesses buried last week are extremely touchy, can be triggered from a distance, and may create surprisingly large avalanches.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slabs.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies 100cm or more below the surface. Triggering this weakness will result in large and dangerous avalanches.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now 100 cm or more in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">Persistent weaknesses buried last week are extremely touchy, can be triggered from a distance, and may create surprisingly large avalanches.
="s_3FE45715">Persistent weaknesses have been touchy recently and can increase the size and consequence of avalanches.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large large slab avalanches. The weak layers may be more reactive with additional loading from new snow, wind and rising freezIng levels.
Numerous large avalanches are failing on a weak and reactive layer of surface hoar which now lies 100cm or more below the surface. Triggering this weakness will result in large and dangerous avalanches.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now 100 cm or more in some areas. This weakness has been susceptible to triggering by light loads or from a distance and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large large slab avalanches. The weak layers may be more reactive with additional loading from new snow, and wind.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large and destructive.
="s_3FE45715">Persistent weaknesses have been touchy recently and can increase the size and consequence of avalanches.
="s_3FE45715">Persistent weaknesses have been touchy recently and can increase the size and consequence of avalanches.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Additional loading from snow and wind, or the weight of a rider could be enough to trigger the February 12 persistent weak layer.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches. The weak layers may be more reactive with additional loading from new snow, and wind.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large and destructive.
An assortment of persistent weaknesses lurk in the top 100cm. Most notably is surface hoar buried early last week as well as the week before, which are most concerning in sheltered treeline areas.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches.
Loading from new snow and wind may add reactivity to persistent buried surface hoar layers. In deeper snowfall areas, resulting avalanches may be large and destructive.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">A weak layer of surface hoar and/or a crust is now down 100 cm or more. This weakness has been susceptible to remote triggering and has been reported from all elevations and aspects.
="s_3FE45715">60-120 cm of settling storm snow sits on a persistent weak layer (surface hoar or crust). Triggering this layer is becoming less likely but extra caution should be given on all slopes over 30 degrees that did not previously slide.
="s_3FE45715">There is a weak layer of buried surface hoar down about 100-150 cms that may be triggered by large loads like re-grouping, cornice fall, or smaller avalanches in motion. Strong solar radiation may initiate this layer where it sits on a crust.
Persistent weak layers exist buried down 60-100 cm, comprising of surface hoar and a sun crust. Avalanches failing on these layers will likely be large and destructive.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches.
="s_3FE45715">60-120 cm of settling storm snow sits on a persistent weak layer (surface hoar or crust). Triggering this layer is becoming less likely but extra caution should be given on all slopes over 30 degrees that did not previously slide.
Persistent weak layers exist buried down 60-100 cm, comprising of surface hoar and a sun crust. Avalanches failing on these layers will likely be large and destructive.
="s_3FE45715">The presence of weak layers buried in the upper snowpack means there is a risk of triggering surprisingly large slab avalanches.
="s_3FE45715">60-120 cm of settling storm snow sits on a persistent weak layer of surface hoar. Extra caution should be given on all slopes over 30 degrees that did not previously slide, especially if the sun comes out.
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer. 
="s_3FE45715">60-120 cm of settled snow sits on a persistent layer of surface hoar. Extra caution should be given on all slopes over 30 degrees that did not previously slide, especially with solar warming on Saturday..
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer..
Persistent weak layers exist buried down 60-90 cm, comprising of surface hoar and a sun crust. A cornice fall could definitely trigger this layer.
A rain crust is found on all aspects up to 22-2400m.&nbsp; The bond with this new snow and the underlying crust is variable.&nbsp; Be sure to dig down and inspect this layer as you travel.&nbsp; Convex slopes at treeline and gullies are suspect.
A buried rain crust is found on all aspects up to 22-2400m.  The bond with this new snow and the underlying crust is variable.  Be sure to dig down and inspect this layer as you travel.  Convex slopes at treeline and gullies are suspect.
Several crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Carefully evaluate the bond at these interfaces and be cautious during times of solar radiation.
="s_3FE45715">A buried crust and/or surface hoar layer may wake up again with loading from new snow and wind on Wednesday. Avalanches stepping down to this layer will be potentially very large and destructive.
Several crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Carefully evaluate the bond at these interfaces and be cautious during times of solar radiation.
A weak layer comprising surface hoar crystals is buried around 60 cm below the surface and is reacting readily to natural and human triggers. This layer appears to have the ability to propagate over large areas of terrain.
="s_3FE45715">A buried crust and/or surface hoar layer, now down 60-80 cm, could be triggered in sheltered areas near treeline. Avalanches stepping down to this layer could be very large and destructive.
Several crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Carefully evaluate the bond at these interfaces and watch for rapid temperature changes.
="s_3FE45715">A buried crust and/or surface hoar layer, now down 60-80 cm, could be triggered in sheltered areas near treeline. Avalanches stepping down to this layer could be very large and destructive.
="s_3FE45715">A volatile layer of buried surface hoar around 60 cm below the surface can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and between 22-2400m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
="s_3FE45715">A volatile layer of buried surface hoar around 50 cm below the surface can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load, or from a thin or convex-shaped part of a slope.
A 30 - 60cm slab now rests on the March 09 surface hoar/crust combo. This consolidated slab is very touchy and is subject to remote triggering from great distances. A very cautious approach to mountain travel is appropriate at this time.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and 2200m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
A 30 - 60cm slab now rests on the March 09 surface hoar/crust combo. This consolidated slab is very touchy and is subject to remote triggering from great distances. A very cautious approach to mountain travel is appropriate at this time.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load, or from a thin or convex-shaped part of a slope.
="s_3FE45715">A layer of surface hoar  buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and 2200m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
="s_3FE45715">A layer of surface hoar buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche will occur with consequences. Remote triggering from great distances is possible.
A few crust layers are found in the upper snowpack. These crusts reach as high as 3000m on S aspects and 2200m on other aspects. Monitor the location of these layers within the snowpack and assess the bond with layers above.
="s_3FE45715">A layer of surface hoar buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche will occur with consequences. Remote triggering from afar is possible.
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the March 15 crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 50-70 cm down are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
="s_3FE45715">A layer of surface hoar buried down 50 cm was especially touchy last week. While the likelihood of triggering is slowly dropping, it can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche may occur with consequences. Remote triggering from afar is possible
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
A 30 - 60cm slab sits on the March 09 surface hoar/crust combo. The distribution of this layer seems to be variable. However if triggered, a large destructive avalanche may occur with consequences. Remote triggering from afar is possible
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
="s_3FE45715">While the likelihood of triggering is slowly dropping, the March 9th layer can be triggered from a distance, propagate across large distances and create surprisingly large avalanches.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 60 cm are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
The March 10th weak layer of surface hoar is now buried 100cm in most places. Large loads like cornice falls, or lighter loads in thin snowpack areas, may trigger this deeply buried weak layer.
="s_3FE45715">Avalanches failing on a crust and/or surface hoar layer buried about 60 cm are becoming less likely, but could be triggered with a heavy load (cornice), or from a thin or convex-shaped part of a slope.
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
="s_3FE45715">Slab avalanches have been reactive to human triggering. The weak interface being the Mid-March crust down 40-60 cm below the surface. It may be more reactive in areas that have been slightly affected by the wind.
Gaping cracks in the snowpack called &quot;Glide Cracks&quot;, may release to ground with warm temperatures and rain.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Primarily a concern in the southern part of the regio</span><span class="s_3FE45715">n. This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.</span><span class="s_AA239
This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.
We expect the recent storm snow to continue to be reactive where it is sitting above surface hoar and crusts that were buried at the end of November.
We expect the recent storm snow to continue to be reactive above the surface hoar and crusts that were buried at the end of November.
Light loads such as skiers or sledders could trigger large avalanches associated with persistent weaknesses on sheltered slopes.
We expect the recent storm snow to continue to be reactive where it sits above surface hoar and crusts that were buried at the end of November.
Recent storm snow overlies a variety of persistent weaknesses including surface hoar and/or a sun crust. It seems to be more of a concern in the southern part of the region where it is up to 70 cm deep.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
The recent storm snow may continue to be reactive where it sits above surface hoar and/or crusts that were buried at the end of November.
This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.
This persistent slab will be tricky to manage as it overlies a variety of weak surfaces. A conservative and investigative approach is required for safe mountain travel.
Managing these persistent slabs can be tricky; they are stubborn and direct evidence of unstable snow may be lacking, but they can produce very destructive avalanches. Treat large open slopes with suspicion until stability is confirmed.
Surface hoar from the end of Nov. is now buried by the recent wind slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A weak interface consisting of surface hoar crystals is buried down around 50 cm. Elevations around 1500 m and below are most suspect, and may be rider triggered.
A weak interface consisting of surface hoar crystals is buried down around 50 cm. Elevations around 1500 m and below are most suspect, and may be rider triggered.
The recent cold temperatures have hindered the settlement of the upper snowpack into a cohesive slabs in most places. However, it would be wise to treat large open slopes with suspicion
A weak interface consisting of surface hoar crystals is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
A weak interface consisting of surface hoar crystals on a crust is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
A weak interface consisting of surface hoar crystals on a crust is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
A weak interface buried at the end of November is now buried by up to 70cm of snow. Triggering this layer may be more likely in steep, unsupported terrain, and in areas where the overlying snow has settled into a cohesive slab
A weak interface consisting of surface hoar crystals on a crust is buried down around 50 cm. Elevations around 1500 m and below are most suspect. They may be stubborn to trigger, but remain suspicious especially on open slopes or over convex rolls.
A variety of persistent weaknesses exist in the mid and upper snowpack. Watch for increased reactivity with the developing snowload and forecast warming.
A variety of persistent weaknesses exist in the mid and upper snowpack. Watch for increased reactivity with the developing snowload and forecast warming.
="s_3FE45715">In deeper snowpack areas, it may be possible to trigger an avalanche on a layer of buried surface hoar. In shallower ones, watch for a weak sugary facet layer near the base. The most likely place to trigger them is on steep, convex slopes.
A weak interface buried at the end of November is now buried by up to 60cm of snow. Triggering this layer may be more likely in steep, unsupported terrain, and in areas where the overlying snow has settled into a cohesive slab
Persistent weakness may become more touchy with forecast warming and additional load from new snow and wind. This includes mid-pack surface hoar (more of a concern in deeper snowpack areas), and basal facets (more of a concern in shallow areas).
Forecast warming may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Forecast warming may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer weather over the weekend could make persistent slabs more touchy.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer temperatures could make persistent slabs more touchy.
Moderate temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Continued loading and warmer temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Moderate temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer temperatures could make persistent slabs more touchy.
Continued loading and warmer temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
This layer should be gaining strength.
Continued loading and mild temperatures could make buried persistent weaknesses in the upper and mid snowpack much more reactive. Make conservative terrain choices over the next couple days.
Continued loading and mild temperatures may increase the reactivity of an assortment of persistent weaknesses buried in the mid and upper snowpack. Triggering a persistent slab may have nasty consequences.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation. Warmer temperatures could make persistent slabs more touchy.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weak layer or facets, surface hoar, and/or a crust are buried by 30-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.</span><span class="s_AA239
A buried persistent weak layer or facets, surface hoar, and/or a crust are buried by 40-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weak layer of facets, surface hoar, and/or a crust are buried by 40-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.</span><span class="s_AA239A9B">
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A buried persistent weak layer of facets, surface hoar, and/or a crust are buried by 40-70 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.</span><span class="s_AA239A9B">
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A variety of </span><a id='GoToAdded' href="http://www.fsavalanche.org/Encyclopedia/persistent_weak_layers.htm" target="_blank"><span class="s_9255B882">PWLs</span></a><span class="s_AA239A9B"> are still being discussed across the region including the Oct crust, the mid-Nov crust, and the early-Dec surface hoar. These layers are generally inactive or stubborn to trigger but may still pose a problem in isolated areas.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-70 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-60 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
A variety of PWLs are still being discussed across the region including the Oct crust, the mid-Nov crust, and the early-Dec surface hoar. These layers are generally inactive or stubborn to trigger but may still pose a problem in isolated areas.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
The most significant interface is a layer of surface hoar from early December. This is buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
The most significant interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
A buried persistent weak layer of facets, surface hoar and/ or a crust may be sensitive to rider triggers. This layer can be found 40-70 cm below the surface and If you trigger this layer, it will result in a large avalanche.
A buried persistent weak layer of facets, surface hoar, and/or a crust is buried by 40-70 cm of storm snow and may be susceptible to triggering by light load like skiers or riders.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations.
The most significant interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations. With the new snow load comes an increased likelihood of triggering this layer.
The most significant interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.</span><span class="s_AA239
Well preserved surface hoar buried at the beginning of December is widespread below 1500m elevation but may exist in isolated areas at higher elevations. With the new snow load comes an increased likelihood of triggering this layer.
A layer of surface hoar is lurking in the top meter of the snow pack. Continued settlement of the overlying snow may increase the likelihood of triggering an avalanche on this layer.
="s_3FE45715">Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
The most significant persistent interface is a layer of surface hoar buried in early December. It's buried 30-70 cm below the surface and is becoming more reactive in areas where the upper slab has become a little denser.
Although no recent activity has been reported on persistent layers, snowpack tests show significant weaknesses in some areas up to 90cm below the surface.
A skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
A couple of week layers from earlier in the month are lurking in the top meter of the snow pack. Continued loading and settlement of the overlying snow may increase the likelihood of triggering an avalanche one of these layer.
Persistent weak layers exist in the upper meter of the snowpack. With the additional load of the forecast snow they may be susceptible to triggering, creating large destructive avalanches.
Various  buried weak layers are present in the region, especially in the North. New snow and wind may cause these weak layers to become more sensitive to triggering.
Buried persistent weak layers exist in the upper 90 cm of the snowpack. New snow and wind will increase the load sitting on them making them more susceptible to triggering. Resulting avalanches could be large and destructive.
Persistent weak layers of facets, surface hoar, and/or a crust exist in the upper 90 cm of the snowpack. With more load they may be susceptible to triggering, creating large - very large destructive avalanches.
A couple of weak layers from earlier in the month are lurking in the top meter of the snow pack. Continued loading and settlement of the overlying snow may increase the likelihood of triggering an avalanche one of these layers.
Persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
A skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
Buried persistent weak layers exist in the upper 90 cm of the snowpack. New snow and wind will increase the load sitting on them making them more susceptible to triggering.
Buried persistent weak layers exist in the upper 90 cm of the snowpack.
There is not much news on the buried mid-December rain crust. Watch for clues of instability and be prepared to dig and investigate if you plan on venturing into more committing terrain.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
Buried persistent weak layers exist in the upper 90 cm of the snowpack.
A recent skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 50-60 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
There is not much news on the buried mid-December rain crust. Watch for clues of instability and be prepared to dig and investigate if you plan on venturing into more committing terrain.
Several persistent weaknesses exist in the mid-snowpack.
Buried persistent weak layers exist in the upper 120 cm of the snowpack.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
A recent skier-triggered size 2 avalanche in the Harvey Pass area indicates persistent weaknesses buried at the end of November have become active. The variable nature of this instability requires an investigative approach for safe mountain travel.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 60-80 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
Buried persistent weak layers exist in the upper 110 cm of the snowpack.
Buried persistent weak layers exist in the upper 120 cm of the snowpack.
It's getting a little tricky out there.  Wind slabs avalanches have the potential to step down and trigger an avalanche on the buried surface hoar.  Plan an escape route when sizing up your lines and regroup in safe zones.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to 90cm below the surface.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 60-80 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
Buried persistent weak layers exist in the upper 120 cm of the snowpack.
This is a complex problem because it's different from one drainage to the next.&nbsp; You need to dig down and figure out if you have a slab on top of the buried surface hoar.&nbsp; If you find a slab in your riding area a conservative approach is appropriate.
Buried persistent weak layers exist in the upper 110 cm of the snowpack.
Although no recent activity has been reported on persistent layers, snowpack tests have shown significant weaknesses in some areas up to a meter below the surface.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
Primarily a concern in Northern sections. A recently buried surface hoar layer, now down 60-80 cm, could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
A variety of buried surfaces exist and could be triggerable in the upper 120 cm of the snowpack.
A variety of buried surfaces exist and could be triggerable in the upper 100 cm of the snowpack.
A persistent weakness buried early December seems to be most reactive on NW through NE aspects from 1700-2000m. Lower elevation terrain and thin snowpack areas are heavily faceted with a weak base.
This is a complex problem because it's different from one drainage to the next.&nbsp; You need to dig down and figure out if you have a slab on top of the buried surface hoar.&nbsp; If you find a slab in your riding area a conservative approach is appropriate.
A weak layer buried around 50 cm from mid-December has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
A persistent weakness buried early December seems to be most reactive on NW through NE aspects from 1700-2000m. Lower elevation terrain and thin snowpack areas are heavily faceted with a weak base.
Several persistent weaknesses exist in the upper and mid-snowpack and could be triggered by the weight of a skier or rider or from continued loading from snow and wind.
A persistent weakness buried late-November is primed for human-triggered avalanches primarily in the Flathead and Elk Valley South areas.
Primarily a concern in Northern sections. A buried surface hoar layer in the middle of the snowpack could be triggered by additional loading from snow or wind or by the weight of a rider. Also, a weak facet/crust combo lurks near the ground.
The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
A weak layer buried around 50 cm has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715">A weak layer buried around 50 cm has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
Primarily a concern in Northern sections. A buried surface hoar layer in the middle of the snowpack could be human-triggered. and a weak facet/crust combo lurks near the ground.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time. </span><span class="s_AA239
="s_3FE45715">Storm avalanches could step down to a persistent weakness in the snowpack buried down 100 cm.
Storm avalanches could step down to a persistent weakness buried down 70 cm. This is the case especially in the Flathead and Elk Valley South areas.
Shallow snowpack areas in the North of the region may continue to have persistent weak layers of surface hoar and/or a facetted crust near the ground.
An avalanche triggered in the new snow or new windslab could step down to a persistent weakness in the snowpack buried down 100 cm.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
A weak layer buried around 60 cm has become reactive and can be readily triggered, especially at higher elevations on a variety of aspects.
An avalanche triggered in the new snow or new windslab could step down to a persistent weakness in the snowpack buried down 100 cm.
The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715">The presence of buried weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
Watch for areas with a shallow weak facetted snowpack below the recent storm snow. Stiff wind slabs may also be sitting above this type of weakness and step-down avalanches may be a concern in isolated areas.
Buried surface hoar and deeply buried facets near the ground continue to be a concern in the North of the region where the snowpack is generally shallow and weak.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The presence of </span><a id='GoToAdded' href="http://www.fsavalanche.org/encyclopedia/persistent_weak_layers.htm" target="_blank"><span class="s_B5813F7D">persistent weak layers</span></a><span class="s_3FE45715"> increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">New snow and fresh wind slabs rest on top of two </span><a id='GoToAdded' href="http://www.fsavalanche.org/encyclopedia/persistent_weak_layers.htm" target="_blank"><span class="s_9255B882">persistent weak layers</span></a><span class="s_AA239A9B"> in the upper meter of the snowpack. Many slopes are teetering on the edge of failure waiting for a human trigger, particularly exposed lee slopes at and above treeline.
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
="s_3FE45715"> Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or a sled airing onto a slope.
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche.
New snow and fresh wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Many slopes are teetering on the edge of failure waiting for a human trigger, particularly exposed lee slopes at and above treeline.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or a sled airing onto a slope.
Watch for areas with a shallow weak facetted snowpack below the recent storm snow. Stiff wind slabs may also be sitting above this type of weakness and step-down avalanches may be a concern in isolated areas.
A weak layer of buried facets near the ground continues to be a concern in the North of the region. The snowpack is quite variable across the region, try to get local knowledge if you are travelling to new areas.
New snow and fresh wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Many slopes are teetering on the edge of failure waiting for a human trigger, particularly exposed lee slopes at and above treeline.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
Watch for areas with a shallow weak facetted snowpack below the recent storm snow. Stiff wind slabs may also be sitting above this type of weakness and step-down avalanches may be a concern in isolated areas.
A weak layer of buried facets near the ground continues to be a concern in the North of the region. The snowpack is quite variable across the region. Try to get local knowledge if you are traveling to new areas.
="s_3FE45715"> Depth hoar at base of snowpack and surface hoar or crust/facets combo layers down 100 cm could be triggered by a windslab avalanche or cornice fall. These layers seem more sensitive on E facing slopes.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Fresh wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. </span><span class="s_3FE45715">Triggering a windslab could add a significant load to the snowpack and possibly step down to a deeper buried persistent weak layer.</span><span class="s_AA239
="s_3FE45715">The presence of persistent weak layers increases the likelihood of larger avalanches that could release to the depth of a meter or even to the ground. The distribution and reactivity of persistent weak layers is highly complex at this time.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more. The distribution and reactivity of persistent weak layers is highly complex at the present time.
Depth hoar at base of snowpack and/or crust/facets combo layers down 100 cm could still be triggered by skiers and sledders. These layers seem more reactive on E facing slopes.
Snow forecast for the week will create a steadily increasing load to buried facets formed during December's cold snap. Triggering this weakness may have nasty consequences.
A weak layer of buried facets near the ground continues to be a concern in the North of the region. Try to get local knowledge if you are traveling to new areas.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
Wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Triggering a wind slab could add a significant load to the snowpack and possibly step down to a deeper buried persistent weak layer.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Try to get local knowledge if you are traveling to new areas.
The distribution and reactivity of persistent weak layers is highly complex at this time.
The distribution and reactivity of persistent weak layers is complex.
Snow forecast for the week will create a steadily increasing load to buried facets formed during December's cold snap. Triggering this weakness may have nasty consequences.
Snow forecast for the week will create a steadily increasing load to buried persistent weakness which seem most prevalent in the north of the region. Triggering these weaknesses may have nasty consequences.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
The distribution and reactivity of persistent weak layers is complex.
Wind slabs rest on top of two persistent weak layers in the upper meter of the snowpack. Triggering a wind slab could add a significant load to the snowpack and possibly step down to a deeper buried persistent weak layer.
The distribution and reactivity of persistent weak layers is highly complex at this time.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Try to get local knowledge if you are traveling to new areas.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a meter or even more.
Two persistent weak layers exist in the upper meter of the snowpack. Intense loading from snow and wind could overload these weakness, potentially creating very large avalanches.&nbsp;
A number of buried persistent weak layers in the mid and lower snowpack could become reactive with heavy loading from snow and wind this weekend. There is potential for large, full-depth avalanches. 
Heavy loading from snow and wind could overload a variety of weaknesses in the upper and mid snowpack, potentially creating very large avalanches.&nbsp;
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Watch for increased triggering in unsupported terrain with a variable or shallow snowpack.
A weak layer of buried facets near the ground continues to be a concern in the north of the region. Watch for increased triggering in unsupported terrain with a variable or shallow snowpack.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">&nbsp; Recent avalanches stepped down to the deeper persistent layers showing that they are still active and proving that they could still be triggered by a sledder or rider.</span><span class="s_AA239
There is a wide spatial variability through the region concerning the persistent weak layers which is creating a complex situation.
Resist venturing out into complex terrain, even if you observe no obvious signs of unstable snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Choose well supported terrain without convexities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be aware of thin areas that may propagate to deeper instabilities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Heavy loading from snow and wind could overload a variety of weaknesses in the upper and mid snowpack, potentially creating very large avalanches.
The presence of persistent weak layers increases the likelihood of larger avalanches that could release to a depth of a metre or even more.
A number of buried persistent weak layers in the mid and lower snowpack could become reactive with heavy loading from snow and wind this weekend. There is potential for large, full-depth avalanches.&nbsp;
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Weak layers continue to linger deep in the snowpack. There is a lot of variability in this region. Areas that were shallow during the early season cold arctic air are very suspect now that a new load has been added.
Resist venturing out into complex terrain, even if you observe no obvious signs of unstable snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Choose well supported terrain without convexities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be aware of thin areas that may propagate to deeper instabilities.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Avoid exposure to overhead avalanche terrain, large avalanches may reach the end of run out zones.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be aware of the potential for full depth avalanches due to deeply buried weak layers.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
A number of buried persistent weak layers in the mid and lower snowpack could become reactive with heavy loading from snow and wind this week. There is potential for large, full-depth avalanches.
Heavy loading from snow and wind could overload a variety of weaknesses in the upper and mid snowpack, potentially creating very large avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
A number of persistent weakness exist in the snowpack, the most notable being weak, sugary facet crystals at ground level. Forecast warming may promote ongoing avalanche activity at this interface with the potential for large, destructive avalanches.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggering a persistent slab avalanches would have nasty consequences.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Persistent slab avalanches would likely be destructive in nature.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggering a persistent slab avalanche would have nasty consequences.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggers include cornice fall or a surface avalanche in motion. Any persistent slab avalanche would be highly destructive.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses in the snowpack. Possible triggers include cornice fall. A persistent slab avalanche would be highly destructive in nature.
Forecast warming will increase the likelihood of triggering a number of persistent weaknesses which exist in the snowpack. Triggers include cornice fall or a surface avalanche in motion. Any persistent slab avalanche would have nasty consequences.
Forecast warm temperatures are expected to result in cornices becoming weak and falling naturally. Cornice falls may trigger buried weak layers on slopes below resulting in very large avalanches.
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering..
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences are very large destructive avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering.
Forecast warm temperatures are expected to result in cornices becoming weak and falling naturally. Cornice falls may trigger buried weak layers on slopes below resulting in very large avalanches
Recent storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences could be very large destructive avalanches.
Recent storm snow may not be bonding to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering.
Dense storm slabs above this SH layer will likely now be hard to trigger, but if triggered may produced large destructive avalanches.
Dense storm slabs above this SH layer will likely now be hard to trigger, but if triggered may produced large destructive avalanches.
Storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences could be very large destructive avalanches.
Storm snow may not bond to the surface hoar and melt-freeze crusts that developed before the storm. Storm slabs are more likely in areas sheltered from the recent strong winds. Forecast warm temperatures may result in easier triggering of these slabs
Storm snow may not have bond well to the surface hoar and melt-freeze crusts that developed before the storm.  Forecast warm temperatures may result in easier triggering of these slabs
Dense storm slabs above this SH layer will likely now be hard to trigger, but if triggered may produced large destructive avalanches.
Storm snow and hard wind slabs have been added to the load above buried weak layers. Deeply buried weak layers may become harder to trigger, but the consequences could be very large destructive avalanches.
There are several buried crusts and or surface hoar layers that developed in the end of January and during the cold weather earlier this month. Avalanches releasing on these layers may be large with serious consequences.
I am splitting this PWL out of the storm slab problem because most of the activity is releasing in the storm snow layers. Avalanches that release on this PWL are expected to be less frequent but higher consequence.
There are several buried crusts and or surface hoar layers that developed in the end of January and during the cold weather earlier this month. Avalanches releasing on these layers may be large with serious consequences.
The crust and facet layer that developed during the cold weather at the beginning of the month is now down about 90 cm. Avalanches that release on this PWL are expected to be less frequent but higher consequence.
The early February crust /facet layer is now down over a metre and continues to be reactive. Storm snow avalanches in motion may step down to this widespread weak layer. Expect long fracture propagations across terrain boundaries.
Forecast new storm snow may over load the persistent weak layer resulting in very large avalanches. Storm snow avalanches in motion may step down to the buried weak layer.
The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, storm slab avalanches or cornice falls in motion, and triggering from adjacent terrain are all concerns.
Expect the deeply buried weak layer to continue to produce very large and destructive avalanches. Each load of new snow adds to the storm slab above the weak layer.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
The early February weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a concern.
Expect the deeply buried weak layer to continue to produce very large and destructive avalanches. Each load of new snow adds to the storm slab above the weak layer.
The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, storm slab avalanches or cornice falls in motion, and triggering from adjacent terrain are all concerns.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
="s_3FE45715">This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
This problem is surprising very experienced professionals and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering, a phenomenon that should become more prevalent as the slab gains cohesion.
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.s_6A269DDD { font-family: 'Arial';font-style: Normal;font-weight: bold;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect the deeply buried weak layer to continue to produce very large and destructive avalanches. </span><span class="s_3FE45715">Slopes are</span><span class="s_6A269DDD"> primed</span><span class="s_3FE45715"> for remote triggering and remains a concern on all aspects and elevations.</span><span class="s_AA239
The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, storm slab avalanches or cornice falls in motion, and triggering from adjacent terrain are all concerns.
The early February weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a concern. If triggered large to very large avalanches are expected.
A weak facet/crust combo, with surface hoar in some areas, is now down 80-150 cm and is primed for human triggering. This weakness shows potential for wide propagation and very large avalanches.
A persistent weakness, now down 60-80 cm in the northern part of the region and 100-150 cm in the south, is primed for rider triggering. This tricky problem has the potential for wide propagation and very large avalanches.
Blue skies and fresh snow will make it very tempting to push out into more committing terrain. Don't get lured in! The current conditions are very tricky and require patience and conservative decision making.
Solar radiation and/or additional wind loading could be enough to tip the scales and greatly increase the potential for triggering this problem. Pay close attention to local conditions.
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering.  In wind-loaded areas the slab is up to 2m thick.
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering. In wind-loaded areas the slab is up to 2m thick.
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer and remains primed for human triggering. This meter deep slab has shown a propensity for remote triggering. In wind-loaded areas the slab is up to 2m thick.
="s_3FE45715">The persistent slab is over a metre deep and continues to be very touchy to any additional load. Continued wind loading, surface slab avalanches, cornice falls in motion, and triggering from adjacent terrain are all concerns.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern. All elevations are suspect and have been reactive.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect the deeply buried weak layers to continue to produce very large and destructive avalanches. Slopes are </span><span class="s_2823317B">primed </span><span class="s_AA239A9B">for human triggering and it remains a concern on all aspects and elevations.
A weak facet/crust combo, with surface hoar in some areas, is now down 80-150 cm and remains a concern for human triggering. This weakness shows potential for wide propagation and very large avalanches.
A persistent weakness, now down 60-80 cm in the northern part of the region and 100-150 cm in the south, remains a concern for rider triggering. This tricky problem has the potential for wide propagation and very large avalanches.
Blue skies and fresh snow will make it very tempting to push out into more committing terrain. Don't get lured in! The current conditions are very tricky and require patience and conservative decision making.
Solar radiation and/or additional wind loading could be enough to tip the scales and greatly increase the potential for triggering this problem. Pay close attention to local conditions.
="s_3FE45715">Over a metre deep and continues to be touchy to any additional load. Continued wind loading, surface slabs, cornice falls in motion, and human triggering from adjacent terrain are all concerns.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.</span><span class="s_AA239
="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.</span><span class="s_AA239
Warming temperatures and solar radiation will likely increase the probability of triggered the mid February persistent weak layer, that is now down 80-150 cm.
Strong solar radiation and warming temperatures will likely increase the probability of avalanches running on the mid February persistent weak layer, which is now down 80-150 cm.&nbsp;
Rapidly rising temperatures will likely increase the probability of avalanches releasing on the buried mid February persistent weak layer. The resulting slides could be very large and destructive.
The mid February persistent weak layer is down between 35 and 90 cm. Forecast solar radiation and warming temperatures could make this problem more reactive.&nbsp;
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
Over a metre deep and continues to be touchy to any additional load. Continued wind loading, surface slabs, cornice falls in motion, and human triggering from adjacent terrain are all concerns.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagations. In wind-loaded areas the slab is up to 2m thick.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
A thick slab from February storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab may be up to 2m thick.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
Over a metre deep and continues to be touchy to any additional load. Continued wind loading, surface slabs, cornice falls in motion, and human triggering from adjacent terrain are all concerns
="s_3FE45715"> A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A</span><span class="s_3FE45715"> dense slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
The deeply buried early February weak layer continues to be sensitive to additional loads. Continued warming and settling of the storm snow may result in more activity on this layer.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and large propagation. In wind-loaded areas the slab is up to 2m thick.
A thick slab from the last series of storms sits on top of a touchy persistent weak layer. This slab has shown a propensity for remote triggering and wide propagation. In wind-loaded areas the slab may be 2m or more thick.
The deeply buried weak layer continues to be sensitive to additional loads. Cornice falls or loose wet avalanches in motion may trigger the deep weak layer of facets and crusts.
The early February persistent weak layer continues to be sensitive to any additional load. Forecast solar radiation may trigger another round of natural activity on the buried weak layer.
The mid February persistent weak layer is down between 35 and 90 cm. Forecast solar radiation and warming temperatures could make this problem more reactive.&nbsp;
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
The deeply buried weak layer continues to be sensitive to additional loads. Cornice falls or loose wet avalanches in motion may trigger the deep weak layer of facets and crusts.
The deeply buried weak layer continues to be sensitive to additional loads. Cornice falls or loose wet avalanches in motion may trigger the deep weak layer of facets and crusts.
The early February persistent weak layer continues to be sensitive to any additional load. Forecast solar radiation may trigger another round of natural activity on the buried weak layer.
The early February persistent weak layer of buried facets and crusts continues to be a concern for human triggering. Cold temperatures are not expected to help settle and bond this weak layer.
A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.
="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick. </span><span class="s_AA239
="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
The persistent weak layer continues to be very sensitive to any additional load. Remote triggering from adjacent terrain and very long fracture propagations are a major concern on all aspects and elevations.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Slopes are primed for human triggering and remain a concern on all aspects and elevations.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.</span><span class="s_AA239
A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 1 1/2 m. thick.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A thick storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 2m thick.</span><span class="s_AA239
="s_3FE45715">A dense storm slab from the last series of storms now lies above a touchy, persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In wind-loaded areas the slab may be up to 1.5 metres thick.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further as the old storm snow above the weak layers settles into a cohesive slab.
="s_3FE45715">Expect the deeply buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">Expect the deeply buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.</span><span class="s_AA239
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Expect the deeply buried weak layers to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
="s_3FE45715">A dense storm slab now lies over a touchy, persistent weak layer. This weak layer can be triggered remotely (from a distance) and propagate over large areas. In wind-loaded areas the slab may be up to 1.5m thick. Use conservative terrain choices.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
A dense storm slab from the last series of storms now lies above a tricky persistent weak layer. This slab has shown a propensity for remote triggering and propagating over wide distances. In some wind-loaded areas the slab may be up to 2m thick.
A dense storm slab now lies over a persistent weak layer. This weak layer can be triggered remotely (from a distance) and propagate over large areas. In wind-loaded areas the slab may be up to 2m thick. Use conservative terrain choices.
="s_3FE45715">A dense storm slab now lies over a touchy, persistent weak layer. This weak layer can be triggered remotely (from a distance) and propagate over large areas. In wind-loaded areas the slab may be up to 2m thick. Use conservative terrain choices.
Expect the deeply buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A dense slab overlies a variety of weak layers and may still be touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This problem remains very persistent and still has the potential to produce large, destructive avalanches.&nbsp; Human triggering is becoming more difficult in thicker snowpack areas but can still be easily triggered in thin spots or with heavier triggers&nbsp;
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
Expect the deeply buried weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A deep and destructive slab overlies a variety of weak layers and rider triggering continues throughout the region. Conservative terrain selection is critical to safe mountain travel.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
A deep and destructive slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard.
This problem remains very persistent and still has the potential to produce large, destructive avalanches.  Human triggering is becoming more difficult in thicker snowpack areas but can still be easily triggered in thin spots or with heavier triggers
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard
The thick persistent slab on the early-Feb weak layer is still reactive to human triggers and has the potential to produce large, destructive avalanches.&nbsp; The new snow may 'wake up' the weak layer and large natural avalanches may occur.
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Put the odds in your favour by avoiding steep, unsupported slopes, areas with a thin or variable snowpack, or terrain with a significant overhead hazard.
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted by large, unsupported terrain.
This problem remains persistent and still has the potential to produce large, destructive avalanches.&nbsp; Human triggering is becoming more difficult in thicker snowpack areas but can still be easily triggered in thin spots or with heavier triggers.
Expect the buried persistent weak layer to continue to produce large and destructive avalanches. Many slopes are still primed for human triggering and remain a concern on all aspects and elevations.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted by large, unsupported terrain.
The thick persistent slab on the early-Feb weak layer is still reactive to human triggers and has the potential to produce large, destructive avalanches.&nbsp; The new snow may 'wake up' the weak layer and very large natural avalanches are possible.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into large, unsupported terrain.
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into big unsupported terrain. 
Continued cold temperatures are expected to preserve the buried February weak layer of facets and crusts. Avalanche fractures may propagate further if the old storm snow above the weak layers settles into a cohesive slab.
A deep, dense slab overlies a variety of weak layers which are still showing reactivity in snowpack tests. Triggering this weakness would have nasty consequences with the potential for wide propagations
A deep, dense slab overlies a variety of weak layers and is still touchy in some areas. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into big unsupported terrain.
A deep, dense slab overlies a variety of weak layers which are still showing reactivity in snowpack tests. Triggering this weakness would have nasty consequences, so don't let the lure of powder tempt you into large, unsupported terrain.
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted by large, unsupported terrain.
="s_3FE45715">The deeply buried persistent weak layer still has the potential to produce large and destructive avalanches. Isolated slopes are still primed for human triggering and remain a concern on all aspects and elevations.
The deeply buried persistent weak layer still has the potential to produce large and destructive avalanches. Isolated slopes are still primed for human triggering and remain a concern on all aspects and elevations.
The thick persistent slab on the early-Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches.  The new snow may 'wake up' the weak layer and very large natural avalanches are possible.
Cold temperatures have likely helped to preserve the mid February persistent weak layer, down 30-80 cm. This layer could become active on Friday with new loading from snow and wind, and rapidly rising temperatures.&nbsp;
A buried persistent weak layer still has the potential to produce large and destructive avalanches especially in areas with a shallower snowpack where this layer can be found buried in the upper one meter.
Ongoing persistent avalanche activity proves layers formed about a month ago deserve respect and should still be in the front of your mind. See the Avalanche Summary in the Forecast Details section for more info on recent activity at this interface.
A buried persistent weak layer has the potential to produce large and destructive avalanches. Unsupported slopes or areas with a thinner snowpack may still be primed for human triggering.
A deep, dense slab overlies a variety of weak layers which are still producing surprise avalanches with the potential for wide propagations. The likelihood of triggering this weakness may increase with the load of the new snow.
A deep, dense slab overlies a variety of weak layers which are still producing surprise avalanches with the potential for wide propagations. The likelihood of triggering this weakness may increase with the load of the new snow.
The mid-Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches. The increasing load of the new snow may 'wake up' this weak layer and very large natural avalanches are possible
A deep, dense slab overlies a variety of weak layers and may still be touchy in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted into large, unsupported terrain.
New loading from snow and wind, combined with significant warming, could &quot;wake up&quot; the mid&nbsp; February persistent weak layer and create large avalanches.&nbsp;
Ongoing persistent avalanche activity proves layers formed about a month ago deserve respect and should still be in the front of your mind. See the Avalanche Summary in the Forecast Details section for more info on recent activity at this interface.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain may kick start this weakness with potential for very large and destructive avalanches.
Heavy loads of rain and snow combined with warm temperatures will test buried persistent weak layers that have the potential to produce large and destructive avalanches.
The mid-Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches. Warm temperatures and the load of the new snow may 'wake up' this weak layer and very large natural avalanches are possible.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain to mid-mountain elevations may kick start this weakness with potential for very large and destructive avalanches.
A deep, dense slab overlies a variety of weak layers and may still be reactive in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted into large, unsupported terrain.
New loading from snow and wind or rising temperatures could create a cohesive slab over this persistent weakness, down around 30-80 cm deep, and increase the odds of triggering this problem.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain may kick start this weakness with potential for very large and destructive avalanches.
Ongoing persistent avalanche activity proves layers formed about a month ago deserve respect and should still be in the front of your mind. Storm slab avalanches in motion or cornice falls may trigger the persistent weak layer.
A deep, dense slab overlies a variety of weak layers and may still be reactive in some areas. Triggering this weakness would have nasty consequences, so be patient and don't be tempted into large, unsupported terrain.
A mix of weak, persistent layers buried about a month ago have not gone away. This weekend's forecast warming and rain to mid-mountain elevations may kick start this weakness with potential for very large and destructive avalanches.
The early Feb weak layer still remains reactive in some areas and has the potential to produce large, destructive avalanches. Warm temperatures and the load of the new snow may 'wake up' this weak layer and very large natural avalanches are possible.
Numerous skier triggered avalanche have recently occurred on this layer indicating how sensitive it is to skier triggering.
A weak layer buried in mid-February is now down 60-120 cm deep. Triggering an avalanche on this layer would result in a very large and destructive avalanche.&nbsp;
The early February persistent weak layer may release naturally due to the added load of the forecast new snow and wind. Cornice falls or storm slab avalanches in motion may step down to this deeply buried weak layer.
Warm temperatures and the added load from the developing storm slab may increase the likelihood of triggering the early February persistent weak layer. Avalanches in motion may step down to this weak layer.
The early February weak layer may be stubborn to trigger, but long fracture propagations may still result if a large force such as a storm slab in motion or a cornice fall steps down to the persistent weak layer.
The Feb. 9th persistent weak layer  has been re-awakened in some parts of the forecast area by the new load of storm snow. An avalanche that steps down to this layer will produce a large and destructive avalanche event.
The&nbsp; Feb. and early March weak layers still remain reactive in some areas and may produce large, destructive avalanches. Warm temperatures, and the loading by new snow may 'wake up' these weak layers. Very large avalanches are possible.
There is potential for heavy loads like a cornice fall or a storm slab avalanche to step down and trigger a deeper persistent weak layer, down over a metre in most places.
A weak layer buried in mid-February is now down 60-120 cm deep. Triggering an avalanche on this layer would result in a very large and destructive avalanche.&nbsp;
The early February weak layer may be stubborn to trigger, but long fracture propagations may still result if a large force such as a storm slab in motion or a cornice fall steps down to the persistent weak layer.
There is potential for heavy loads like a cornice fall or a storm slab avalanche to step down and trigger a deeper persistent weak layer, down over 1m in most places.
A weak layer buried in mid-February is now down 60-120 cm deep. Triggering an avalanche on this layer would result in a very large and destructive avalanche.
The early February weak layer may be stubborn to initiate, but could still be triggered by a large force such as a storm slab in motion or a cornice fall. Warming and solar radiation over the next few days may also activate this destructive layer.
There is potential for heavy loads like a cornice fall or a storm slab avalanches to step down and trigger the persistent weak layer from early-Feb which is typically down 1-1.5m.&nbsp;
A weak layer buried in mid-February is now down 60-120 cm deep. The layer remains reactive to human triggering. Smaller avalanches have the potential to step down to this layer resulting in large, destructive avalanches.
="s_3FE45715">50 - 100 cm of settled old storm snow has coalesced into a slab that is sitting on the March 02 suncrust / surface hoar combo.
="s_3FE45715">50 - 100 cm of settled old storm snow has coalesced into a slab that is sitting on the March 02 suncrust / surface hoar combo.
="s_3FE45715">50 - 100 cm of settled old storm snow has coalesced into a slab that is sitting on the March 02 suncrust / surface hoar combo.
The early-March weak layer remains very active and there has been a lot of recent activity on this layer.  Expect much of the new storm activity to release on this layer.
The early-March weak layer is still quite reactive to new snow loads and human-triggers.  The slab is now typically 30-70cm thick and continues to produce large avalanches.
The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty surrounding this layer, I suspect that the new storm snow is going to increase it's sensitivity to human triggering.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty surrounding this layer, I suspect that the new storm snow is going to increase it's sensitivity to human triggering.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty surrounding this layer, I suspect that the new storm snow is going to increase it's sensitivity to human triggering.
The early-March weak layer appears to have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders  The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March suncrust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.</span><span class="s_AA239
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early-March weak layer appears to have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders&nbsp; The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
The March weak layer seems to have re-awakened in some parts of the region with new snow loading and strong winds
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds.
The Feb. and March persistent weak layers appear to have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders&nbsp; The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline and on south aspects, especially if the sun is shining.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds. </span><span class="s_AA239
The Feb. and March persistent weak layers have been re-awakened by new snow loads and might now be triggered by light loads like skiers and sledders&nbsp; The slab is now typically 40 to 80 cm thick and continues to produce large avalanches.
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds.
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds. - S
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline and on south aspects, especially if the sun is shining.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layers buried deep in the snowpack have recently become reactive with new snow loading. Conservative terrain choices are important now. </span><span class="s_AA239
The March and February weak layers have become reactive throughout the forecast region with recent new snow loading and strong winds.
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
The early March sun crust/ surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline and on south aspects, especially if the sun is shining.
The persistent weak layers buried deep in the snowpack are still there. Conservative terrain choices are important now.
Activity on the March and February weak layers has slowed down, but these layers are still subject to triggering with the right load, and would produce a very large destructive avalanche
The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.</span><span class="s_AA239
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March sun crust/surface hoar combo should not be underestimated. While there's a lot of uncertainty and complexity surrounding this layer, it's important to note that human triggering is most likely at treeline.</span><span class="s_AA239
="s_3FE45715">The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.  </span><span class="s_3FE45
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.&nbsp;
There are persistent weak layers buried deep in the snowpack. Conservative terrain choices are important now.
Activity on the March and February weak layers has slowed down, but these layers are still subject to triggering with the right load, and will produce a very large destructive avalanche
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_3FE45715">The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.  </span><span class="s_AA239
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. The added load of the recent storm slabs may result in deep slab avalanches.
The added load of new snow may result in increased sensitivity to triggering the persistent weak layer of crusts/facets/surface hoar.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. The added load of the recent storm slabs may result in deep slab avalanches.
The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early-March and mid-March weak layers are still reactive to human-triggering and have the potential to produce large avalanches. The early-March layer is particularly tricky and conservative terrain selection remains crucial.
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. The added load of the recent storm slabs may result in deep slab avalanches.
The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. Periods of solar radiation may increase the sensitivity to triggering this buried weak layer.
The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Be aware of the potential for avalanches in the upper snowpack to step down the 0211 interface.&nbsp; This layer is still producing highly variable results so be sure to evaluate this layer often as you move through the terrain.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. Periods of solar radiation may increase the sensitivity to triggering this buried weak layer.</span><span class="s_AA239
="s_3FE45715">The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer.
This layer has not produced much activity of late but still remains a concern from thinner snowpack areas.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
="s_3FE45715">The early March persistent weak layer is buried deep enough to produce large avalanches when triggered. Periods of solar radiation may increase the sensitivity to triggering this buried weak layer.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The recent storm snow may not be well bonded to the buried weak layer of crusts/facets/surface hoar that developed during early March. Forecast cool temperatures may help to preserve this weak layer. </span><span class="s_AA239
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
The Feb 10th persistent weak layer is still a concern. It is buried 90 to 120cm in the snowpack and remains reactive to stability tests. A very serious skier-triggered avalanche occurred on this layer on Sunday (see Avalanche Activity for details).
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> The Feb 10th persistent weak layer remains a concern and continues to give variable results in snowpack tests. A very serious avalanche accident occurred on this layer on Sunday (see </span><a href="https://www.facebook.com/KCPublicSafety" target="_blank"><span class="s_9255B882">photos</span></a><span class="s_AA239A9B">).
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
Weaknesses buried earlier this month remain reactive to light triggers in isolated areas (convex slopes, southern aspects, and higher elevations). Step down potential to deeper persistent weaknesses can result in highly destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might  trigger a deep persistent weak layer and result in a highly destructive avalanche</span><span class="s_AA239A9B">.
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep terrain. A small avalanche might trigger a deep persistent weakness, and may result in a highly destructive avalanche.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Use conservative route selection, stick to moderate angled terrain with low consequence.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Minimize exposure to sun exposed slopes when the solar radiation is strong.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
In a couple of new profiles on Tuesday we found this layer still producing clean shears in the 'hard' range down as much as 130cm near the divide.
The Feb 10th layer buried 90 to 120cm is reactive to stability tests and remains sensitive to human-triggering. Large naturally-triggered avalanches have been occurring on a daily basis, primarily triggered at Treeline.
="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might trigger a deep persistent weak layer and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to triggering on convex slopes, south aspects, and steep alpine terrain. A small avalanche might provide enough mass to trigger a persistent weakness and result in a highly destructive avalanche .
="s_3FE45715">Weaknesses buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep terrain. A small avalanche might trigger a deep persistent weakness, and may result in a highly destructive avalanche.
Assess this problem carefully as you approach bigger or steeper terrain at treeline and above. Thin areas seem to pose more of a problem lately.&nbsp; The Feb 10 layer is 120cm down, these avalanches have potential to be very large.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Weak layers buried earlier this month remain reactive to triggering on convex slopes, south aspects, and steep alpine terrain. A small avalanche might provide enough mass to trigger a persistent weakness and result in a highly destructive avalanche .</span><span class="s_AA239
Weaknesses buried earlier this month remain reactive to light triggers on convex slopes, solar aspects, and steep terrain. A small avalanche or cornice failure&nbsp; might trigger a deep persistent weakness, and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might trigger a deep persistent weak layer and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche might trigger a deep persistent weak layer and result in a highly destructive avalanche.
Weaknesses buried earlier this month remain reactive to rider triggering on convex slopes, solar aspects, and steep terrain. A small avalanche or cornice failure&nbsp; might trigger a deep persistent weakness, and result in a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier this month remain reactive to rider triggering on convex slopes, south aspects, and steep alpine terrain. A small avalanche might gain enough mass to trigger a persistent weakness and trigger a highly destructive avalanche.
="s_3FE45715">Weak layers buried earlier remain reactive to rider triggering on convex slopes, south aspects, and in steep alpine terrain. A small avalanche might gain enough mass to trigger a persistent weakness and produce a highly destructive avalanche.
Weak layers buried earlier this month remain reactive to light triggers on convex slopes, southern aspects, and steep alpine terrain. A small avalanche could trigger a buried deep persistent weak layer and result in a highly destructive avalanche.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Weaknesses buried earlier this month remain reactive to rider triggering on convex slopes, solar aspects, and steep terrain. A small avalanche or cornice failure might trigger a deep persistent weakness, and result in a highly destructive avalanche. </span><span class="s_AA239
Portions of the region north of nelson may be capable of producing large avalanches due to two problematic layers in the snowpack. Reports are limited. Dig down and investigate for yourself before committing to bigger terrain.
="s_3FE45715">A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or even wind transported snow. Avalanches on this layer could be surprisingly large.
A weak layer of facets buried a meter deep may fail when overloaded by a skier, sledder or even wind transported snow. Forecasted warming may increase sensitivity to human triggering. Avalanches on this layer could be surprisingly large.
Warm temperatures and the load from rain may spark renewed destructive avalanche activity on weak layers near the base of the snowpack. These weak layers can surprise with nasty consequences. Wet slabs are also a concern at all elevations.
Storm snow from the last few days is coalescing into a slab that rests precariously on a potent combination of weak surface hoar and stout rain crust. Conditions are prime for large human triggered avalanches failing 30 - 70 cm deep.
: Normal;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">A very touchy surface hoar layer is buried by a 40-80 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
1681A555">A very touchy surface hoar layer is buried by a 30-70 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
30 - 80 cm of storm snow from the last few days has coalesced into a slab above a touchy weak layer/crust combo. The stage is set for large human triggered avalanches.
New snow from the previous week is coalescing into a slab that rests on a stout crust. In some places a very weak layer of surface hoar may rest between the crust and the slab which is a prime setup for human triggered avalanches.
A slab 30 - 70 cm in depth remains sensitive to human triggering. This problem isn't likely to go away any time soon.
="s_3FE45715">A very touchy surface hoar layer is buried by a 40-80 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation remains a concern.
30 - 80 cm of snow from the last week has coalesced into a slab above a touchy weak layer/crust combo. This problem is likely to remain sensitive to human triggering for the foreseeable future.
="s_3FE45715">New snow from the previous week is coalescing into a slab that rests on a stout crust. In some places a very weak layer of surface hoar may rest between the crust and the slab which is a prime setup for human triggered avalanches.
This persistent weak layer, buried up to 70cm below the surface, was responsible for a few close calls over the past week. Conservative terrain selection remains critical.
Thin windslabs and recent storm slabs may be sitting on a weak layer of surface hoar and/or a crust. This problem may persist through the Holiday season.
The 50-70 cm deep slab continues to be triggered from steep convex rolls and adjacent terrain. The forecast cooling is expected to help preserve the buried weak layer, resulting in this problem persisting through the Holidays.
This persistent weak layer, buried up to 80cm below the surface, may increase in reactivity with new snow loading on Saturday night. Conservative terrain selection remains critical.
A buried surface hoar layer remains a concern, especially in the southern parts of the region.  This layer appears to be most reactive on north facing slopes around treeline elevation. Wind slabs may be building above this weakness.
This slab may continue to be triggered by skiers and riders, and may result in long fracture propagations resulting in large avalanches.
The mid-December surface hoar/ crust weak layer is buried down 40-60 cm and may be triggered by travelling on adjacent terrain. Triggering this slab may result in long fracture propagations and large avalanches.
A touchy layer of buried surface hoar crystals has been responsible for numerous small avalanches over the past few days.
Thin windslabs and recent storm slabs may be sitting on a weak layer of surface hoar and/or a crust. This problem may persist through the Holiday season.
A persistent weak layer, buried up to 70cm below the surface, was responsible for a few close calls over the past week. Conservative terrain selection remains critical.
The recent storm slab may be triggered by light additional loads like a skier/rider. Remotely triggering avalanches from travel on adjacent terrain continues to be likely.
The mid-December surface hoar/ crust weak layer is buried down 40-60 cm and may be triggered by travelling on adjacent terrain. Triggering this slab may result in long fracture propagations and large avalanches.
The 50-70 cm deep slab continues to be triggered from steep convex rolls and adjacent terrain. The forecast cooling is expected to help preserve the buried weak layer, resulting in this problem persisting through the Holidays.
A persistent weak layer, buried up to 80cm below the surface, has the potential for wide propagations. Conservative terrain selection remains critical.
The mid-December surface hoar/ crust weak layer is buried down 60-80 cm and may be triggered by travelling on adjacent terrain. Triggering this slab may result in long fracture propagations and large avalanches.
The 60-80 cm deep slab continues to be triggered from steep convex rolls and adjacent terrain. The forecast cooling is expected to help preserve the buried weak layer, resulting in this problem persisting through the Holidays.
The mid-December crust and surface hoar layer is now buried between 50-80 cm and continues to be a concern for triggering by light additional loads like a skier/rider.
Thin windslabs and recent storm slabs may be sitting on a weak layer of surface hoar and/or a crust. This problem may persist through the Holiday season.
A touchy layer of buried surface hoar crystals has been responsible for numerous small avalanches over the past few days.
A persistent weak layer, buried up to 90cm below the surface, has been reactivated by recent storm loading producing large avalanches. Conservative terrain selection remains critical.
A persistent weak layer, buried up to 90cm below the surface, was responsible for a few close calls over the past week. The key to safe backcountry travel is in conservative terrain selection.
1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.</span><span class="s_AA239
: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_1681A555">A very touchy surface hoar layer is buried by a 40-90 cm thick persistent slab. This layer is widespread, and is easily triggered by skiers and riders. Remote triggering with wide propagation is a concern.</span><span class="s_AA239
The weak layer of surface hoar and crusts is down about 30-50 cm in most areas and may be deeper where new windslabs have developed. The weak layer continues to easy to trigger with light additional loads like a skier or rider.
The buried weak layer of surface hoar and crust continues to be triggered by skiers and riders. This persistent weak layer allows for long propagations and triggering from adjacent terrain. Wind slab avalanches in motion may step down to this layer.
The mid-December crust and surface hoar layer is now buried between 50-80 cm and continues to be a concern for triggering by light additional loads like a skier/rider.
The persistent weak layer of buried surface hoar and crusts continues to allow for easy triggering with light additional loads on the snowpack. Remote triggering from adjacent terrain and long fracture propagations are expected to continue.
A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A touchy persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow, human triggering is likely and remains a concern. </span><span class="s_AA239
Warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 - 120 cm.  Surface avalanches in motion may step down to this interface.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 - 120 cm.  Surface avalanches in motion may step down to this interface.</span><span class="s_AA239
="s_3FE45715">A buried surface hoar/ crust layer demands respect. It has been easy to trigger persistent slabs with light loads (like a person). This layer is down about 30-50 cm in most areas, but may be deeper where wind slabs have developed.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow, human triggering is likely and remains a concern.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A buried surface hoar/ crusts layer demands respect. It is easy to trigger persistent slabs, even from a distance.
A buried surface hoar/ crust layer demands respect. It has been easy to trigger, even from a distance. As new snow builds above this weakness, avalanches are expected to become larger and easier to trigger.
="s_3FE45715">A buried surface hoar/ crust layer demands respect. It has been easy to trigger persistent slabs, even from a distance. As new snow builds above this weakness, avalanches are expected to become larger and easier to trigger.
="s_3FE45715"> A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
Continued warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 to 120 cm. Surface avalanches in motion may also step down to this interface.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued warm alpine temps may reactivate a layer of small facets, mixed forms and in some places surface hoar that overlies a rain crust down 10 to 120 cm. Surface avalanches in motion may also step down to this interface.</span><span class="s_AA239
A series of crusts in the upper and middle snowpack may be reactivated by the storm.  Surface avalanches in motion have the potential to step down creating large destructive avalanches.
A crust formed in mid November remains sensitive to human triggering, especially in thin spots near rock outcroppings. Surface avalanches in motion may step down to this interface too.
A buried surface hoar/ crust layer demands respect. It has been easy to trigger, even from a distance. As new snow builds above this weakness, avalanches are expected to become larger and easier to trigger.
A buried surface hoar/ crusts layer demands respect. It is easy to trigger persistent slabs, even from a distance. New snow will add stress to this volatile layer.
A buried surface hoar/ crusts layer demands respect. It is easy to trigger persistent slabs, even from a distance.
A buried surface hoar/ crust layer demands respect. It has been easy to trigger persistent slabs with light loads (like a person). This layer is down about 30-50 cm in most areas, but may be deeper where wind slabs have developed.
Several persistent weak layers exist in the upper to middle snowpack. It might take a large load (like a cornice fall), major weather input (heavy rain or snow), or a rider hitting the sweet spot to trigger this problem.&nbsp;
A series of crusts in the upper and middle snowpack may be reactivated by the storm. Surface avalanches in motion have the potential to step down creating large destructive avalanches.
A crust buried in mid November remains sensitive to human triggering, especially in thin spots near rock outcroppings. Surface avalanches in motion may step down to this interface.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow consolidating and human triggering remains a concern.
A crust that formed in mid-December is buried near 70 cm down. Not much is known about its distribution. Dig down and test weak layers and watch for this condition as you transition from below treeline to treeline and above.
A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
There are a couple of persistent weak layers in the top 80 cm of the snowpack, including surface hoar on sheltered shady slopes and a crust/facet layer. These weaknesses could wake up with heavy loading from rain and snow on Sunday/Monday.
Several persistent weak layers exist in the upper to middle snowpack. It might take a large load (like a cornice fall), major weather input (heavy rain or snow), or a rider hitting the sweet spot to trigger this problem.&nbsp;
A series of crusts in the upper and middle snowpack may wake up with loading from snow or wind. Surface avalanches in motion have the potential to step down creating large destructive avalanches.
A crust buried in mid November remains sensitive to human triggering, especially in thin spots near rock outcroppings. Surface avalanches in motion may step down to this interface.
Persistent slab problems have been of particular concern in the south of this region at elevations between 1600 m and 2100 m. The culprit is a crust with weak surface hoar crystals. This layer is found to the north as well, but is harder to trigger.
An easily-triggered and prominent layer of surface hoar overlying a crust is buried around 60-80 cm below the surface and is still producing avalanches, especially on steep, convex terrain around treeline.
An easily-triggered and prominent layer of surface hoar overlying a crust is buried typically around 60-80 cm below the surface and is still producing avalanches, especially on steep, convex terrain around treeline.
A buried crust/surface hoar layer demands respect. It has been easy to trigger with light loads (like a person). This layer is down about 30-50 cm in most areas, but may be deeper where wind slabs have developed.
A buried surface hoar/ facet/ crust interface is buried 70 cm down. Dig down and test weak layers and watch for this condition as you transition from treeline and above. Conservative terrain selection required.
A persistent weak layer, buried 30-80 cm below the surface continues to be a concern and skier/ rider triggering is likely.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow consolidating and human triggering remains a concern.
Heavy loading from new snow, wind, and/or rain could overload persistent weaknesses in the upper 100 cm of the snowpack. The resulting avalanche would be very large and destructive.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Heavy loading from new snow, wind, and/or rain could overload persistent weaknesses in the upper 100 cm of the snowpack. The resulting avalanche would be very large and destructive.  </span><span class="s_AA239A9B">
Loading by new snow and wind could be enough to trigger deeper persistent weaknesses in the snowpack.&nbsp;
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches. 
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. This weak layer has a variable distribution across the region. Dig down and find out if you have this layer and how it reacts in tests.
The mid-December crust and surface hoar layer is now buried between 50-80 cm and continues to be a concern for triggering by light additional loads like a skier/rider.
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering and remote triggering from adjacent terrain.&nbsp;
The persistent weak layer has been reported to be variable across this region. If the layer exists in your area, it may be easy to propagate long fractures resulting in large avalanches. Dig down to locate and evaluate the weak layer.
A persistent weak layer of surface hoar and/or facets on a crust exists 40-90 cm below the surface. This has been reactive with the recent storm snow consolidating and human triggering remains a concern.
A crust which formed in December should remain on your radar as it has recently produced large avalanches in the south of the region.&nbsp; Dig down and test weak layers before committing to a line.
A widespread persistent weak layer continues to react to light loads with the potential for large avalanches. Conservative terrain selection remains critical.
Heavy loading from new snow, wind, and rain could overload persistent weaknesses in the top 1 m of the snowpack, leading to very large and destructive avalanches.&nbsp;
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass.
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches.
The developing storm slab may be enough load to trigger the persistent weak layer. Storm slab avalanches in motion may step down to the deeply buried weak layer resulting in large avalanches.
The developing storm slab will add to the load above the mid-December persistent weak layer. This may not be enough load to trigger naturally, but may increase propagation distance and the likelihood of remote triggering.
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. Storm slabs avalanches in motion may step down to this deeply buried weak layer.
The developing new storm slab may be enough load to increase the likelihood of triggering the mid-December weak layer.
This weak layer continues to produce avalanches under light loads. With the added stress of the new snow, avalanches at this interface could be large and destructive.
Heavy loading from new snow, wind, and rain could overload persistent weaknesses in the top 1 m of the snowpack, leading to very large and destructive avalanches.
="s_3FE45715">Heavy loading from new snow, wind, and rain could overload persistent weaknesses in the top 1 m of the snowpack, leading to very large and destructive avalanches.
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass. The weight of the new snow may increase the likelihood of triggering one of these layers.
The developing storm slab will add to the load above the mid-December persistent weak layer. This may not be enough load to trigger naturally, but may increase propagation distance and the likelihood of remote triggering.
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches.
The mid-December persistent weak layer may release naturally due to the new load of storm snow, or be triggered by storm slab avalanches in motion.
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. Storm slabs avalanches in motion may step down to this deeply buried weak layer.
The developing storm slab may be enough load to trigger the persistent weak layer. Storm slab avalanches in motion may step down to the deeply buried weak layer resulting in large avalanches.
A weak layer which formed in December continues to produce avalanches under light loads, and is now buried by up to 100cm of snow. With the added stress of the new snow, avalanches at this interface are more likely, and could be highly destructive.
="s_3FE45715">A problematic layer of weak surface hoar on a hard crust continues to produce avalanches under light loads.  Now down around a meter below the surface, avalanches at this interface are still likely and could be highly destructive.
The new storm slab will add to the load above the mid-December persistent weak layer. This may not be enough load to trigger naturally, but may increase propagation distance and the likelihood of remote triggering.
Persistent weak layers down around 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.
The new storm slab may be enough load to trigger the persistent weak layer. Storm slab avalanches in motion may step down to the deeply buried weak layer resulting in large avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent weak layers down around 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.</span><span class="s_AA239
The mid-December persistent weak layer of surface hoar and crust continues to be a concern for human triggering. Storm slabs avalanches in motion may step down to this deeply buried weak layer.
The mid-December persistent weak layer may release naturally due to the new load of storm snow, or be triggered by storm slab avalanches in motion.
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass. The weight of the new snow may increase the likelihood of triggering one of these layers.
New loading from snowfall and strong winds could 'wake up' deeper persistent weaknesses and produce isolated very large avalanches.
A crust/surface hoar combo which formed in December should remain on your radar. In places where the overlying slab is well developed, large and destructive avalanches remain possible.
There is potential to trigger avalanches on a weak layer buried 80-100 cm deep. Be vary wary of slopes that did not slide slide during the last storm and be aware of the potential for triggering slabs from a distance.
There are a couple buried persistent weak layers in the upper and mid snowpack, primarily in northern areas like Bear Pass and Ninginsaw Pass. The weight of the new snow may increase the likelihood of triggering one of these layers.
There are a couple buried persistent weak layers in the upper and mid snowpack. The weight of the new snow may increase the likelihood of triggering one of these layers.
Persistent weak layers down over 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.
The persistent weak layer of buried surface hoar and crust continues to be a concern for remote and human triggering. This layer is now down more than a metre and may result in very large and destructive avalanches.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The persistent weak layer of buried surface hoar and crust continues to be a concern for remote and human triggering. This layer is now down about 50-70 cm and may result in very large and destructive avalanches.</span><span class="s_AA239A9B">
Persistent weak layers down over 1m remain a concern. A smaller avalanche may step down to one of these layers or a heavy trigger like a cornice fall may be able to trigger one of these layers.
The persistent weak layer of surface hoar and crust that was buried in mid-December continues to be a concern for human and remote triggers. This weak layer is more than three weeks old and still gives easy shears in some snow profile tests.
The mid-December persistent weak layer of buried surface hoar and crust continues to be likely to trigger from human activity. Snow profile tests on this layer continue give moderate to hard sudden planar results.
There is potential to trigger avalanches on a weak layer buried 80-100 cm deep. Be vary wary of slopes that did not slide slide during the last storm and be aware of the potential for triggering slabs from a distance.
A crust/surface hoar combo, 50-80 cm deep, should remain on your radar. This weakness produced large slab avalanches during and just after the recent storm.
Two persistent layers in the snowpack remain a concern. These are down around 60cm and 120cm. Triggering these layers is unlikely where the surface crust is supportive but use caution anywhere you are breaking through the crust.
Two persistent layers in the snowpack remain a concern. These are down around 60cm and 120cm. Triggering these layers is unlikely where the surface crust is supportive but use caution anywhere you are breaking through the crust.
There are a couple persistent weak layers in the middle of the snowpack. Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of these deeper layers. These layers were most reactive in the north of the region.
="s_3FE45715">There are a couple persistent weak layers in the middle of the snowpack. Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of these deeper layers. These layers were most reactive in the north of the region.
A persistent weakness buried mid-December is primed for human triggers in specific areas. Watch for signs of instability especially during daytime warming.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A crust/surface hoar combo, 50-80 cm deep, should remain on your radar. This weakness produced large slab avalanches during and just after the recent storm.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of the deeper persistent weak layers. These layers were most reactive in the north of the region recently.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A buried persistent weak layer (down 80-100 cm) has been responsible for numerous large natural and rider triggered avalanches this week. Triggering remains a concern with the potential for creating large high-consequence slides.
A buried persistent weak layer (down 80-100 cm) has been responsible for numerous large natural and rider triggered avalanches this week. Triggering remains a concern with the potential for creating large high-consequence slides.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
A persistent weakness buried mid-December is primed for human triggers and wide propagations producing very large avalanches. Remote triggering from flat terrain and step-down from shallower weaknesses makes this problem especially tricky to manage.
Rider triggering is unlikely at this time, but a  larger trigger such as a small avalanche or a cornice failure might trigger deeper instabilities.
The buried storm slab should be bonding well with the mild temperatures, but still remains a serious consideration. A small avalanche could trigger this buried dense slab, and produce a large destructive avalanche.
Continued skier-triggered avalanche activity is a clear indication that weak layers, buried up to 120cm below the surface, have not gone away. I'd remain conservative in my terrain selection, and exercise cautious group management.
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</style><p class="p_CC664AAA"><span class="s_1681A555">A persistent weakness buried mid-December is spotty in distribution and widely variable with regard to reactivity which makes management tricky.&nbsp; It remains most&nbsp; prevalent at and below treeline where human triggered avalanches are most likely.</span><span class="s_AA239
This problem seams to be most prevalent at and below 1800m. It's an unusual setup, but it may actually be less sensitive in the Alpine.
="s_3FE45715">A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains VERY problematic at and below treeline where the snowpack structure is primed for human triggering.
The persistent weakness buried mid-Dec is spotty in distribution and widely variable with regard to reactivity which makes management tricky. It remains most prevalent at and just below treeline where human triggered avalanches are most likely.
Whumpfing and remotely triggered avalanches are strong indications that persistent weak layers have not gone away. Large avalanches are still possible.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure is primed for human triggering.
A small avalanche or a cornice failure might trigger deeply buried instabilities.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains very problematic at and just below treeline where the snowpack structure may be primed for human triggering.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains VERY problematic at and just below treeline where the snowpack structure may be primed for human triggering.
="s_3FE45715">Persistent slabs can still be triggered by a person in the right spot. These could be surprisingly large. Overall the chances of triggering have dropped, but consequences remain high.
This mid layer crust facet combination will take a long time to go away.&nbsp; Rapid warming, rapid loading, or an avalanche event could bring this dragon back to life.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
The persistent weakness buried mid-Dec is spotty in distribution and widely variable with regard to reactivity which makes management tricky. It remains most prevalent at and just below treeline where human triggered avalanches are most likely.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
Persistent slabs may be triggered by the weight of a person or snowmobile in specific areas. Most likely trigger points are where the snowpack transitions from thick to thin, around rocks and trees, and on steep convex rolls.
The persistent weakness buried mid-Dec is spotty in distribution and widely variable with regard to reactivity which makes management tricky. It remains most prevalent at and just below treeline where human triggered avalanches are most likely.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering.
This weakness is widely variable in depth and seems to be mostly around tree-lane and below . It could be triggered by a small wind-slab avalanche or the weight of a snow machine.
Wind slab avalanches may be able to trigger deeper weak layers. Persistent slabs may also be triggered by the weight of a person or snowmobile in specific areas such as thin spots or convexities in the slope.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The mid-December weak layer remains problematic at and below treeline where the snowpack structure may still be primed for human triggering in some areas.  The weight of the new snow may increase the reactivity of this layer. </span><span class="s_AA239
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas.  The weight of the new snow may increase the reactivity of this layer.
="s_3FE45715">The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas.  The weight of the new snow may increase the reactivity of this layer. </span><span class="s_AA239
This weakness is widely variable in depth and seems to be mostly around tree-line and below . It could be triggered by a small wind-slab avalanche or the weight of a snow machine.
="s_3FE45715">Wind slab avalanches may be able to trigger deeper weak layers, creating surprisingly large avalanche. Persistent slabs may also be triggered by the weight of a person or snowmobile in specific areas such as thin spots or convexities in the slope.
A persistent weak layer is widely variable in depth. It could be triggered by a person or snowmobile hitting a sweet spot, creating a surprisingly large avalanche.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
The weight of the new snow, or an avalanche in motion, may be the tipping point for renewed destructive activity on weak layers which formed in December.
Although less likely to trigger, persistent weak layers are capable of producing large and destructive avalanches. Use increased caution around big, unsupported slopes.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
New snow and wind may spark renewed activity on weak crystals buried in mid-December. Although less likely, avalanches at this interface would likely be destructive in nature.
Although less likely to trigger, persistent weak layers are capable of producing large and destructive avalanches. Use increased caution around big, unsupported slopes.
Deeply buried snowpack weaknesses are most likely to be triggered from shallow snowpack areas, or with a very heavy load like a cornice fall or airborne snowmobile landing.
Although less likely to trigger, persistent weak layers are capable of producing large and destructive avalanches. Use increased caution around big, unsupported slopes, especially in the south of the region.
The mid-December weak layer remains problematic at and just below treeline where the snowpack structure may still be primed for human triggering in some areas. The weight of the new snow may increase the reactivity of this layer.
New snow and wind may spark renewed activity on weak crystals buried in mid-December. Although less likely to trigger, avalanches at this interface could be destructive in nature.
Although less likely to trigger, avalanches failing on persistent weak layers formed in December could be destructive in nature.
Reports suggest the mid-December weak layer has become less likely to trigger. That said, the weight of the new snow or an avalanche in motion may increase the reactivity of this potentially destructive layer.
Recent storm loading may spark renewed activity on weak crystals buried in mid-December. Although less likely to trigger, avalanches at this interface could be destructive in nature.
Two persistent weakness remain a concern in the mid-pack. The early-Jan and mid-Dec layers are down around 50cm and 80cm, respectively.&nbsp; Human triggering remains possible or smaller avalanches may step-down to one of these layers.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 45 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 30 and 50 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
Around 30cm of snow sits on the widespread mid-Jan surface hoar/crust layer. The distribution of the slab reactivity is still uncertain so use an investigative approach.  Watch for signs of a widespread instability in your local area.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 30 and 50 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 45 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
~30cm of snow sits on the widespread mid-Jan surface hoar/crust layer. In wind loaded areas, the slab may be around 50cm thick. The reactivity of the slab may not have reached full potential in many areas but is expected to with warming and new load.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 30 and 50 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 45 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer appears to be widely found in this region and many recent avalanches were triggered on it.
~30cm of snow sits on the widespread mid-Jan surface hoar/crust layer. In wind loaded areas, the slab may be up to 50cm thick. The reactivity of the slab may not have reached full potential in many areas but is expected to with new load and warming.
Touchy surface hoar down 20-30cm is well preserved throughout the region and has likely not seen critical loading in most areas.&nbsp; This storm is expected to produce widespread activity on this layer.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 25 and 50 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading or warming
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading.
A weak layer comprising of feathery surface hoar crystals and on south aspects a crust is buried between 40 and 60 cm below the surface. This layer was active during the last storm cycle and is likely to respond again to additional loading.
A weak layer of surface hoar crystals is buried between 50 and 80 cm below the surface, on south aspects this layer sits above a crust. This layer will take time to adjust to the new snow load and warm temperatures and can produce large avalanches.
A weak layer of surface hoar crystals is buried between 60 and 90 cm below the surface, on south aspects this layer sits above a crust. This layer will take some time to adjust to the new snow and warm temperatures and can produce large avalanches.
A weak layer of surface hoar is buried between 60 and 90 cm below the surface, on south aspects this layer sits above a crust. This layer produced has produced large avalanches and it will take some time to adjust to the new snow and warm conditions.
A weak layer of surface hoar crystals is buried between 40 and 80 cm below the surface, on south aspects this layer sits above a crust. This layer has the will take some time to adjust to the new load and warming temperatures
="s_3FE45715">A weak layer of surface hoar above a crust is buried by 40 to 85 cm of snow. It has the potential to be triggered naturally or by humans and produce large avalanches. Conditions are likely to be especially touchy in wind loaded features.
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A weak layer of surface hoar above a crust is buried by 45 to 80 cm of snow. This layer remains touchy. It has the potential to be triggered naturally or by humans and produce large avalanches.
="s_3FE45715">A weak layer of surface hoar above a crust is buried by 40 to 70 cm of snow. This layer remains touchy. It has the potential to be triggered naturally or by humans and produce large avalanches.
="s_3FE45715">A weak layer of surface hoar above a crust is buried by 40 to 70 cm of snow.  This layer remains touchy.  It has the potential to be triggered naturally or by humans and produce large avalanches.</span><span class="s_3FE45
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 cm of snow.  I anticipate that natural avalanches will remain possible and human triggered avalanche likely as this layer adjusts to the warm temperatures</span><span class="s_AA239
="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 cm of moist snow. This layer will remain a concern as it adjusts to the warm temperatures.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Snow, rain, wind and warm temperatures are stressing a layer of weak surface hoar siting on a crust buried 40 to 80 cm down.</span><span class="s_AA239
="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 cm of snow.  This layer may continue to produce avalanches as it adjusts to the warm temperatures.</span><span class="s_3FE45
ont-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 40 to 70 of moist snow has been responsible for most of the recent avalanche activity.</span><span class="s_AA239
="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 20 to 50 of moist snow has been responsible for most of the recent avalanche activity.
="s_3FE45715">At upper elevations a layer of surface hoar on a crust buried 40 to 80 cm down may still be capable of producing avalanches especially in wind loaded features.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">A layer of weak surface hoar siting on a crust is buried by 40 to 80 of moist snow has been responsible for most of the recent avalanche activity.</span><span class="s_AA239
="s_3FE45715">In areas where the snowpack is not capped by a supportive crust a layer of surface hoar buried 40 to 70 cm down may still be capable of producing large avalanches.
The persistent weak layer that was buried in mid-January continues to be the sliding layer for natural and remotely triggered avalanches.
The persistent weak layer that was buried in mid-January continues to be the sliding layer for remotely triggered avalanches.
The persistent weak layer that was buried in mid-January has been the sliding layer for recent remotely triggered avalanches.
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and below treeline where the snowpack structure is primed for human triggering.
Surface hoar is considered a long term problem. Its exact location in the terrain is still a question. Be prepared to look for it as you travel. Using small terrain as &quot;tester&quot; slopes will help indicate the reactivity.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar and facets may maintain touchy conditions on sheltered slopes, especially in the 1700-2100m elevation range.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar may maintain touchy conditions on sheltered slopes in the northern part of the region, especially in the 1400-1800m elevation range.
Human triggered avalanches are still possible, especially on North facing terrain at, and just below tree-line due to a layer of buried surface hoar.
The new snow may sitting on a buried layer of surface hoar. Where it exists, I suspect that it is buried close to a critical depth for human triggered avalanches.
A layer of buried surface hoar can be found 70 to 130cm below the snow surface and is expected to be most sensitive to human triggering below treeline between 1400 and 1800m. Plan to travel below treeline as conservatively as possible.
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> A layer of buried surface hoar can be found 70 to 130cm below the snow surface and is expected to be most sensitive to human triggering below treeline between 1400 and 1800m.  Plan to travel below treeline as conservatively as possible.</span><span class="s_AA239
="s_3FE45715">A layer of buried surface hoar can be found 70 to 110cm below the snow surface and is expected to be most sensitive to human triggering below treeline between 1400 and 1800m. Plan to travel below treeline as conservatively as possible.
="s_3FE45715">A layer of buried surface hoar can be found 35 to 80cm below the snow surface and is expected to be most sensitive to human triggering below treeline between 1400 and 1800m. Plan to travel below treeline as conservatively as possible.
Surface hoar at treeline and below is buried down 30-40cm.&nbsp; Treeline the hoar is more spotty on only N and E aspects.
The weakness buried early-December is becoming more stubborn to trigger, but lingering pockets of buried surface hoar and facets may maintain touchy conditions on sheltered slopes, especially in the 1700-2100m elevation range.
A layer of buried surface hoar can be found 70 to 110cm below the snow surface and has been most sensitive to human-triggering below treeline between 1400 and 1800m. Plan to travel below treeline as conservatively as possible.
Limited alpine visibility may push riders below treeline where a reactive layer of buried surface hoar has been most sensitive to human triggering between 1400 and 1800m. Savvy folks will seek out well supported simple terrain at treeline Sunday.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Limited alpine visibility may push riders below treeline where a reactive layer of buried surface hoar has been most sensitive to human triggering between 1400 and 1800m.  Savvy folks will seek out well supported simple terrain at treeline Sunday.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Limited alpine visibility may push riders below treeline where a reactive layer of buried surface hoar has been most sensitive to human triggering between 1400 and 1800m.  Savvy folks will seek out well supported simple terrain at treeline Sunday.</span><span class="s_AA239
Human triggered avalanches on a layer of buried surface hoar have become less likely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep lines.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Limited alpine visibility may push riders below treeline where a reactive layer of buried surface hoar has been most sensitive to human triggering between 1400 and 1800m.  Savvy folks will seek out well supported simple terrain at treeline Sunday.</span><span class="s_AA239
The Dec 4th persistent weak layer, buried 50 to 70cm at Treeline, remains a concern in the snowpack, as it continues to give results in snowpack stability tests. Open slopes and convex terrain are areas with potential for human-triggering.
="s_3FE45715">The weak layers buried in early-Dec and mid-Nov in the middle of the snowpack have become difficult to trigger but are still a concern in isolated areas. Heavy triggers like cornices or avalanches stepping down could result in very large avalanches.
Human triggered avalanches on a layer of buried surface hoar have become less likely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep lines.
="s_3FE45715">A layer of buried surface hoar can be found below treeline between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity and remains sensitive to human triggering.
A layer of buried surface hoar can be found below treeline between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity and remains sensitive to human triggering.
="s_3FE45715">A layer of buried surface hoar can be found below treeline between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity and remains sensitive to human triggering.
="s_3FE45715">A layer of buried surface hoar can be found below treeline between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity and remains sensitive to human triggering.
The Dec 4 persistent weak layer is buried up to 70cm at Treeline and potential for human-triggering remains. This layer and it's sensitivity to triggering are highly variable. Take the time to explore the snowpack as you travel through the terrain.
="s_69982360">A layer of buried surface hoar can be found at and below tree line and remains sensitive to human triggering. It is most widespread between 1400m and 1800m. A buried sun crust and facets can be found in the alpine.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found below treeline between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity indicating that it may still be sensitive to human triggering.
: Normal;font-weight: normal;font-size: 15.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_AD4A7DB8">A layer of buried surface hoar can be found below treeline between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity however it may remain sensitive to human triggering.
Human triggered avalanches on a layer of buried surface hoar have become less likely. However, avalanches at this interface could be destructive in nature. Dig down and test for this weakness before committing to any steep lines.
At the moment, a lack of a windslab is limiting any avalanche problem below treeline. When the surface condition changes, expect the surface hoar to wake up. Be sure to re-assess as you approach treeline. Watch for stiffer slabs as you travel.
span class="s_CDCF4B37">A layer of buried surface hoar can be found at and below tree line and remains sensitive to human triggering. It is most widespread between 1400m and 1800m.  Watch out for signs of instability like wumphing to guide you through this elevation band.
: Normal;font-weight: normal;font-size: 15.3333333333333px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_AD4A7DB8">A layer of buried surface hoar can be found below tree-line between 1400m and 1800m.  Test profiles indicate that this interface may still be sensitive to human triggering.</span><span class="s_AA239
span class="s_AD4A7DB8">A layer of buried surface hoar can be found below tree-line between 1400m and 1800m. Test profiles suggest this interface varies widely in reactivity indicating that it may still be sensitive to human triggering.
="s_3428770D">A layer of buried surface hoar can be found bellow treeline, between 1400m and 1800m. It remains sensitive to human triggering. Watch out for signs of instability like wumphing to guide you through this elevation band.
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</style><p class="p_CC664AAA"><span class="s_AD4A7DB8">A layer of buried surface hoar can be found bellow treeline, between 1400m and 1800m. It remains sensitive to human triggering. Watch out for signs of instability like wumphing to guide you through this elevation band. </span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_AD4A7DB8">A layer of buried surface hoar can be found bellow treeline, between 1400m and 1800m. It remains sensitive to human triggering. Watch out for signs of instability like wumphing to guide you through this elevation band. </span><span class="s_AA239
span class="s_AD4A7DB8">A layer of buried surface hoar can be found below tree-line between 1400m and 1800m. Test profiles indicate that this interface may still be sensitive to human triggering.
This problem is in wind prone areas below treeline and the upper reaches of treeline that are exposed to stronger, alpine winds. The slab density above the Dec4th layer will be a factor for avalanche potential. Stiffer slabs are more of a problem.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found bellow tree-line, between 1400m and 1800m. It remains sensitive to human triggering. Watch out for signs of instability like wumphing to guide you through this elevation band.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found below tree-line between 1400m and 1800m. Test profiles indicate that this interface may still be sensitive to human triggering.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found bellow tree-line, between 1400m and 1800m. It remains sensitive to human triggering. Watch out for signs of instability like wumphing to guide you through this elevation band.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3428770D">A layer of buried surface hoar can be found below tree-line between 1400m and 1800m. Test profiles indicate that this interface may still be sensitive to human triggering.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found between 1400m and 1800m. Watch out for signs of instability like wumphing to guide you through this elevation band.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found between 1400m and 1800m. Watch out for signs of instability like wumphing to guide you through this elevation band.
span class="s_AD4A7DB8">A layer of buried surface hoar can be found between 1400m and 1800m. Watch out for signs of instability like wumphing to guide you through this elevation band.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_AD4A7DB8">A layer of buried surface hoar can be found between 1400m and 1800m. Use signs of instability like wumphing to guide you through this elevation band. </span><span class="s_AA239
A layer of buried surface hoar can be found between 1400m and 1800m. Use increased caution on steep roles on cut-blocks and in open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Use increased caution on steep roles in cut blocks and in open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Use increased caution on steep roles in cut blocks and in open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
Recent avalanche activity indicates that a layer of surface hoar buried in early December should still be on our radar. Although this layer has become less likely to trigger, I'd be wary of steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
Recent avalanche activity indicates that a layer of surface hoar buried in early December should still be on our radar. Although this layer has become less likely to trigger, I'd be wary of steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
="s_3428770D">A couple of buried weak layer of surface hoar should be on your radar. I would be suspect of steep unsupported slopes at tree-line unless I knew the layer did not exist or was now well bonded.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become unlikely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
A layer of buried surface hoar can be found between 1400m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
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</style><p class="p_CC664AAA"><span class="s_3428770D">A couple of buried weak layer of surface hoar should be on your radar. I would be suspect of steep unsupported slopes at tree-line unless I knew the layer did not exist or was now well bonded.</span><span class="s_AA239A9B">
A layer of buried surface hoar can be found between 1100m and 1800m. Although this layer has become less likely to trigger, I'd remain cautious on steep roles in cut-blocks and open glades below treeline.
="s_3428770D">A couple of buried weak layer of surface hoar should be on your radar. I would be suspicious of steep unsupported slopes at tree-line unless I knew the overlying snow had no slab properties, or that the weak layer does not exist in that location.
A layer of buried surface hoar can be found between 1400m and 1800m.&nbsp; A weak crust/facet/surface hoar layer is expected at higher elevations.&nbsp; Smaller avalanches may step down to these layers.
A prominent layer of buried surface hoar can be found between 1400m and 1800m. A weak crust/facet/surface hoar layer is expected to still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
A prominent layer of buried surface hoar can be found between 1400m and 1800m. A weak crust/facet/surface hoar layer is expected to still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_CDCF4B37">A prominent layer of buried surface hoar can be found between 1400 m and 1800 m. A weak crust/facet/surface hoar layer is also expected to still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
span class="s_CDCF4B37">Buried surface hoar can be found below treeline. A weak crust/facet/surface hoar layer may also still be reactive in isolated areas at higher elevations. Smaller avalanches may step down to these layers.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">A weak layer buried about 40-100 cm down remains reactive in snowpack tests in some areas. It has produced avalanches within the last week.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
A weak layer buried about 40-100 cm down remains reactive in snowpack tests in some areas. It has produced avalanches within the last week and could wake-up with the upcoming warm temperatures in the alpine.
A few buried surface hoar layers exist in the top 100cm of the snowpack. I would keep these on my radar on steep unsupported slopes, especially at treeline and below.
Several weak layers of surface hoar may be buried in the top 100 cm of the snowpack. Forecast warming of the storm slab above these weak layers is a concern for increased sensitivity to triggering and the possibility of longer fracture propagations.
Skiers have triggered four large persistent slab avalanches in the last couple of weeks. The weak layer is down 40-60 cm and exists at different elevations in different parts of the region.
Skiers have triggered four large persistent slab avalanches in the last couple of weeks. The culprit is surface hoar from early December down 40-60 cm. It exists at different elevations in parts of the region, but it is definitely out there!
This is the piece of the puzzle that won't let me drop the danger rating to LOW. The consequence of triggering a buried surface hoar weakness is high, although the likelihood of triggering seems to be getting lower.
This is the piece of the puzzle that won't let me drop the danger rating to LOW. The consequence of triggering a buried surface hoar weakness is high, although the likelihood of triggering seems to be getting lower.
Skiers have triggered four large persistent slab avalanches in the last couple of weeks. The culprit is surface hoar from early December down 40-60 cm. It exists at different elevations in various parts of the region, but it is definitely out there!
This persistent slab problem is not going to go away soon. It's a good time to dig a pit and test the reactivity of the slab before venturing into big terrain.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
Buried weak layers of surface hoar may be triggered by human activity. This problem is more likely in the area west of Kimberley, but may be found in shallow snowpack areas across the region.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
Buried weak layers of surface hoar may be triggered by human activity. This problem is more likely in the area west of Kimberley, but may be found in shallow snowpack areas across the region.
Deeply buried weak surface hoar has not resulted in any reports of deep slab avalanches since the new year. This problem has become less likely, but still needs to be considered when choosing terrain.
A few surface hoar layers buried in mid December are becoming unlikely to trigger; however, some snowpack tests are still showing sudden results. Use extra caution on steep, unsupported slopes at treeline and below.
We have not had any new reports of avalanches on this persistent weak layer of surface hoar that is buried down 40-60 cm. Professional operations continue to monitor this weak layer because the consequences of triggering are high.
A low probability/ high consequence persistent slab problem still exists. Investigate your local snowpack.
A low probability/ high consequence persistent slab problem still exits. Investigate your local snowpack.
The early January surface hoar layer has been reactive to human triggers at ALL elevations in the Kootenay Boundary.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
="s_3FE45715">Numerous backcountry travelers have been surprised in recent days by a nasty layer of surface hoar. This layer has been especially reactive below 1800 m.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Numerous backcountry travelers have been surprised in recent days by a nasty layer of surface hoar. This layer has been especially reactive below 1800 m.
Recent storm accumulations overlie a weak layer of surface hoar. Expect very touchy conditions in areas where the recent storm snow has settled into a cohesive slab.
The slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive at and below treeline.
Numerous backcountry travelers have been surprised in recent days by a touchy layer of surface hoar. This layer has been especially reactive below treeline.
Recent storm accumulations overlie a weak layer of surface hoar. Touchy conditions are expected in areas where the recent storm snow has settled into a cohesive slab.
Recent storm snow has formed a volatile slab where it overlies buried surface hoar. Avalanches may be triggered remotely and be surprisingly large.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
In some parts of the region, the slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive at and below treeline.
The slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive at and below treeline.
The slab sitting over a volatile weak layer is primed for human triggering. It has been most reactive below treeline.
With each successive snowfall, a slab is slowly forming above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance.
Recent storm accumulations overlie a weak layer of surface hoar. Touchy conditions may exist in areas where the recent storm snow has settled into a cohesive slab.
A couple layers of weak surface hoar down 60-100cm have been reactive to human-triggering and have the potential to result in large, destructive avalanches. Smaller avalanches can easily step down to these layers.
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive at below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
A couple layers of weak surface hoar down 40-60cm have been reactive to human-triggering and have the potential to result in large, destructive avalanches. Smaller avalanches can easily step down to these layers.
Buried surface hoar, down 60-100 cm, has been particularly touchy on shady aspects near treeline. Heavy loading will likely cause widespread natural avalanche activity on this interface on Thursday.&nbsp;
Expect heavy loading from snow, rain, and wind to overload buried surface hoar, potentially creating very large avalanches. This problem has been most active on shady slopes near treeline.
With each successive snowfall, a slab is gradually forming above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance.
Some areas could see enough new snow and wind to create a slab over the buried surface hoar layer, currently 20-40 cm deep. Stay tuned to changing conditions and head out with options. 
Incoming snow on Thursday could be enough to tip the scales and produce a large avalanche cycle on the January 9th surface hoar interface. Some slides may step down to deeper weaknesses.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_A8FEC758">A volatile persistent slab has been failing with light loads. These slabs will probably get bigger and more reactive with the incoming storm. </span><span class="s_AA239
A volatile persistent slab has been failing with light triggers.
Weak surface hoar crystals which were buried at the beginning of January are variably reactive. This layer can surprise with nasty consequences in areas where the overlying slab is deep and cohesive.
A volatile persistent slab has been failing easily with light triggers. The size and likelihood of these should increase with the incoming storm.
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive at below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
Recent storm accumulations overlie a weak layer of surface hoar. Although this layer seems to be variably reactive, touchy conditions may exist in areas where the recent storm snow has settled into a cohesive slab.
New snow, wind, and mild temperatures may have helped develop a cohesive slab, which overlies a variety of buried persistent weaknesses. It may be easy for riders to trigger this slab (where it exists), even from low angle terrain.
In many places, loading on the buried surface hoar layers has been incremental. This could make the problem trickier and will require discipline and conservative terrain choices. Other areas may have had enough load to tip off a natural cycle.
Thursday's storm may have helped clean out the mid-January surface hoar problem; however, wait a day or two to reassess the conditions before moving out into steeper terrain.&nbsp;
Heavy loading on Thursday may have tipped off a widespread avalanche cycle on the mid-January persistent weak layer; however, I would take a very conservative approach until we know the extent of this cycle and the status of this persistent weakness.
Surface hoar crystals which were buried at the beginning of January seem to be gaining strength around the Lizard Range. That said, observations have been limited throughout the region. I'd continue to test for this potentially destructive weak layer
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_A8FEC758">Numerous large persistent slabs have been triggered over the last few days. New storm loading will only accentuate this problem.
With each successive snowfall, a slab is gradually forming above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance.
A warm, wet and windy storm forecast for Thursday will likely overload persistent weaknesses which lie up to 85cm below the surface. Destructive persistent slab avalanches will be particularly touchy at elevations where precipitation falls as rain.
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</style><p class="p_CC664AAA"><span class="s_A8FEC758">Numerous large persistent slabs have been triggered over the last few days on many aspects and elevations. New storm loading will only accentuate this problem.</span><span class="s_AA239
Numerous large persistent slabs have been triggered over the last few days on many aspects and elevations. New storm loading will only accentuate this problem.
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive at below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
It's possible that heavy snow and rain may have wiped out this problem in most, or even all areas. That being said, keep your guard up until we have more post-storm information.
Buried surface hoar, now 60 cm deep on average, is primed for triggering. It's possible for light loads to trigger slabs even from relatively low angle slopes. Be extra cautious near treeline where surface hoar is more likely to be preserved.&nbsp;
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">Numerous persistent slabs have been triggered this week. Even as the weather improves, this problem could remain touchy.
A slab has formed above a touchy buried weakness. This could be triggered by the weight of a person, even from a distance. Avalanches could be larger than expected.
This problem may still be found in places that did not see widespread avalanche activity. Be particularly caution in the northern part of the region between 1500 and 1900 m elevation. 
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">Numerous persistent slabs have been triggered this week. Even as the weather improves, this problem could remain touchy.</span><span class="s_AA239
Numerous persistent slabs have been triggered this week. Even as the weather improves, this problem could remain touchy.
The January surface hoar layer may become reactive with heavy loading from new snow and/or rain. An avalanche on this layer has the potential to be large and destructive.
A layer of surface hoar crystals buried at the beginning of January seems to be gaining strength around the Lizard Range. Observations have been limited throughout the region. Digging a pit to find and test this layer would&nbsp; be worth your time!
Up to 30cm of cohesive storm snow overlies a mix of weak crystals which seem most reactive, especially at and below treeline elevations west of the divide. Watch for triggering in steep open glades and in cut blocks.
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
Buried surface hoar, now 60 cm deep on average, is primed for triggering. It's possible for light loads to trigger slabs even from relatively low angle slopes. Be extra cautious near treeline where surface hoar is more likely to be preserved.&nbsp;
Buried surface hoar remains primed for rider triggering, especially in the Northern part of the region where the snow line stayed below treeline during the recent storm. 
Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.&nbsp;
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.  </span><span class="s_AA239A9B">
The persistent slab has proven to be easily triggered by skiers and sleds, be aware of the possibility of triggering from a distance.
This persistent weak layer could be triggered by a wind or storm slab and result in a large, destructive avalanche
This weak layer is not going to go away anytime soon.  This is a good time to dig a pit before committing yourself to any big terrain.
Be cautious in terrain that has not had any tracks in it.&nbsp; The Jan. surface hoar is still a real concern.
A small storm or wind slab avalanche may awaken this sleeping persistent slab and trigger a large, destructive avalanche
Buried surface hoar remains primed for rider triggering, especially in the Northern part of the region where the snow line stayed below treeline during the recent storm.&nbsp;
Buried surface hoar, now 60 cm deep on average, is primed for triggering. It's possible for light loads to trigger slabs even from relatively low angle slopes. Be extra cautious near treeline where surface hoar is more likely to be preserved.&nbsp;
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.&nbsp;
Large avalanches have been failing on buried persistent weak layers throughout the week. This problem will probably remain sensitive to human triggers for the next while.&nbsp;
This layer is still on the radar. An avalanche on this layer could be quite large and destructive.
The persistent weak layer might be triggered by a small or medium sized rider-triggered avalanche
A small avalanche could provide enough mass and force to trigger this deeper instability
This weak has not been reactive recently, but is still on the radar. A wind or storm slab avalanche could trigger this sleeping monster.
A small wind or storm slab avalanche might provide enough mass to trigger this deeper instability.
Large avalanches have been failing on a buried persistent weak layer down 40-80 cm. This problem will likely remain sensitive to human triggers for the next few days.
A small wind slab avalanche could produce enough mass to trigger a deeper instability
A small slide might trigger this slab and produce a large and destructive avalanche
This weakness may be hard to trigger, but a small to mid-sized avalanche might awaken this sleeping monster, and produce a large destructive avalanche.
Large avalanches have been failing on a buried persistent weak layer down 70-100 cm. This problem will likely remain sensitive to human triggers for the next few days.
Large avalanches have been failing on a buried persistent weak layer down 40-80 cm. This problem will likely remain sensitive to human triggers for the next few days.
Large avalanches have been failing on a buried persistent weak layer down 40-60 cm. This problem will likely remain sensitive to human triggers for the next few days.
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
A warm, wet and windy storm is forecast to overload persistent weak layers which lie up to 100cm below the surface. Very large avalanches are expected at all elevation bands over the next few days.
Buried surface hoar remains primed for rider triggering, especially in the Northern part of the region where the snow line stayed below treeline during the recent storm.
This slab might be triggered by a small slide in the right location.
The slab above the persistent weak layer continues to be touchy, releasing naturally or with light additional loads like a single skier on adjacent terrain. Conservative terrain choices without overhead hazard are recommended at this time.
Persistent slab avalanches continue to release naturally and from small loads like skiers on adjacent terrain. The touchy slab continues to be a concern. Conservative terrain selection without overhead hazards is required at this time.
This buried surface hoar layer will be on the radar for a while longer.&nbsp; If triggered, it could produce a large destructive avalanche.
Loading from wind, snow, and rain, may increase the likelihood of triggering the slab above the buried persistent weak layer. Remote triggering continues to be a concern.
The Jan 3rd surface hoar / crust / facet combination now has a dense slab on top of it.
Rising freezing levels and increased loading from wind, snow, and rain, may increase the likelihood of triggering the buried weak layer of surface hoar.
Buried surface hoar remains primed for rider triggering in many areas including the Northern part of the region and Alison Pass. Forecast rain and wet snow will increase the likelihood of avalanches failing on this touchy weak layer.
A warm, wet and windy storm is overloading persistent weak layers which lie up to 100cm below the surface. Very large avalanches are expected at all elevation bands.
New snow has been slowly accumulating over a layer of facets and surface hoar and may now be primed for triggering in some areas.
Warming temperatures and new loading from wind, snow, and rain, may increase the likelihood of triggering a persistent slab avalanche. Remote triggering continues to be a concern and smaller avalanches have the potential step-down to a deeper layer.
Warming temperatures and new loading from wind, snow, and rain, may increase the likelihood of triggering a persistent slab avalanche. A small avalanche or a cornice failure have the potential to step-down to a deeper layer.
The slab above the persistent weak layer continues to be touchy, releasing naturally or with light additional loads like a single skier on adjacent terrain. Conservative terrain choices without overhead hazard are recommended at this time.
Natural avalanche activity may have stopped on this deeply buried weak layer. Human triggering from light loads continues to be a concern. Remote triggering and long fracture propagations are likely with this persistent weak layer.
Natural activity may have stopped on this weak layer, however human triggering continues to be likely. Remote triggering and long fracture propagations are also likely with this persistent weak layer.
Natural avalanche activity on this layer may have ended, but this layer continues to be a concern for human triggering. Remote triggering and long fracture propagations are likely with this weak layer.
Warming temperatures and new loading from wind, snow, and rain, may increase the likelihood of triggering a persistent slab avalanche. A small avalanche or a cornice failure have the potential to step-down to a deeper layer.
Buried surface hoar remains primed for rider triggering in many areas, especially in the Northern part of the region. Forecast rain and wet snow will increase the likelihood of avalanches failing on this touchy weak layer.
A warm, wet and windy storm has overloaded persistent weak layers which lie more than 100cm below the surface. Even if the storm tapers-off on Thursday, I'd give the snowpack a few days to adjust to the new load before pushing into steeper terrain.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
The likelihood of triggering a buried weak layer is slowly dropping but if triggered, these layers can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering the early-Jan weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
The likelihood of triggering a buried weak layer is slowly dropping but if triggered, these layers can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
Deep and destructive persistent slab avalanches may remain a concern in high elevation terrain (especially in the north of the region) as the snowpack adjusts to recent heavy storm loading.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
Deep and destructive persistent slab avalanches will remain a concern in many places as the snowpack adjusts to recent heavy storm loading.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers should decrease over the next few days. However, the layer remains touchy in many areas and could surprise with disastrous consequences.
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
The persistent weak layer continues to give sudden planar results in snowpack tests in the north of the region. A couple of large natural avalanches in the Lizard-Flathead region suggest that the distribution may be variable.
A couple of recent large natural avalanches suggest that triggering the deeply buried weak layer continues to be likely in isolated terrain features. Avalanches failing on this layer can be large and destructive.
The persistent weak layer of surface hoar may continue to be triggered by large loads or small loads in shallow or weak areas.
The likelihood of triggering deeply buried surface hoar layers should decrease over the next few days. However, the layer remains touchy in many areas and could surprise with disastrous consequences.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
="s_3FE45715">Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab problem particularly tricky to manage.
Surface hoar buried at the beginning of January remains primed for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab problem particularly tricky to manage.
Surface hoar buried at the beginning of January remains reactive to human triggers. The potential for widespread propagation and remote triggering makes this persistent slab problem particularly tricky to manage.
Surface hoar buried at the beginning on January remains a concern for human triggers. The potential for widespread propagation and remote triggering makes this persistent slab particularly tricky to manage.
This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
New snow has been slowly accumulating over a layer of facets and surface hoar. In some areas, recent rain may have destroyed the layer. In other areas, the overlying slab may be primed for human triggering.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering the buried weak layer is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continue to be a concern for human triggering, or from triggering by storm slab avalanches in motion.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.</span><span class="s_AA239
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp;  overlying slab may now be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering, or from triggering by smaller avalanches in motion.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.</span><span class="s_AA239
The likelihood of triggering buried surface hoar is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential to step-down to a deeper weak layer.
Destructive persistent weaknesses buried up to 120cm below the surface have become less likely to trigger, but still deserve respect. I'd be increasingly cautious on steep, unsupported slopes around treeline.
The likelihood of triggering the buried weak layer is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
The likelihood of triggering persistent weak layers is slowly dropping but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering, or from triggering by smaller avalanches in motion.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3D0464D1">This persistent weak layer is probably now best described as a low probability but high consequence problem. Dig down (80-120 cm) to see if the surface hoar exists in your area.</span><span class="s_AA239
The likelihood of triggering buried surface hoar and facets is slowly dropping in many areas, but touchy conditions persist in the Dogtooth Range near Golden. A few close calls serve as a warning this layer can surprise with nasty consequences.
="s_3FE45715">Persistent slabs have become more difficult to trigger; however, avalanches failing on buried surface hoar would be large and destructive. Use increased caution in steep, open terrain at treeline and below.
The likelihood of triggering persistent slabs is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering persistent slabs is slowly dropping in some areas. However, ongoing reports of remote triggering suggest deep and destructive avalanches are still a very real problem. </span><span class="s_AA239
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp; overlying slab may now be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
Persistent slabs have become more difficult to trigger; however, avalanches failing on buried surface hoar would be large and destructive. Use increased caution in steep, open terrain at treeline and below.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the  overlying slab may now be primed for human triggering.
="s_69982360">The likelihood of triggering persistent slabs is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.
="s_3FE45715">A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering in thin spots where the layer is closer to the surface.
The likelihood of triggering persistent slabs is slowly dropping in some areas. However, ongoing reports of remote triggering suggest deep and destructive avalanches are still a very real problem.
Touchy conditions persist, especially in the Dogtooth Range near Golden. A few close calls serve as a warning this layer can surprise with nasty consequences.
This persistent weak layer is a classic low probability but high consequence problem. Dig down to see if the surface hoar exists in your area.
Low probability high consequence conditions persist, especially in the Dogtooth Range near Golden. A few close calls serve as a warning this layer can surprise with nasty consequences.
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The likelihood of triggering persistent slabs is slowly dropping, but if triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer.</span><span class="s_AA239
="s_7D940460">A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp; overlying slab may now be primed for human triggering.
The likelihood of triggering deeply buried surface hoar layers may have decreased; however, the layer remains touchy in many areas and could surprise with disastrous consequences.
="s_7D940460"> A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
A persistent weak layer of buried surface hoar on the west side of the region and a buried crust/facet combination on the east side of the region continues to be a concern for human triggering in thin spots where the layer is closer to the surface.
This persistent weak layer is a classic low probability but high consequence problem. Dig down to see if the surface hoar exists in your area.
A cornice failure or a small avalanche in motion has the potential to step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
A cornice failure or a small avalanche in motion has the potential step-down to a deeper weak layer. If triggered, this layer can still produce large, destructive avalanches.
If triggered, this layer can still produce large, destructive avalanches. A cornice failure or a small avalanche in motion has the potential to step-down to a deeper weak layer.
Low probability high consequence avalanche conditions persist, especially in the Dogtooth Range near Golden. A few close calls (see Avalanche Activity) serve as a warning this layer has teath!
We are in a classic low probability but high consequence period.  Collapsing cornices or a small avalanche in motion could step down to a buried weak layer.
This persistent weak layer is a classic low probability but high consequence problem. Dig down to see if the surface hoar exists in your area.
Storm slabs in motion may step down to deeply buried persistent weak layers resulting in very large avalanches with wide propagations.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the&nbsp; overlying slab may now be primed for human triggering.
The persistent slab problem demands respect, especially in the north of the region. Riders have triggered a couple of very large avalanches this week. Forecast warming could increase the sensitivity of this problem.
While becoming unlikely to be triggered, this layer can still produce large, destructive avalanches. It seems to be most prevalent at and below treeline.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.
A small avalanche has the potential to step down to a deeper weak layer. Forecast warming may also make the persistent slab easier to trigger. If triggered, this layer can still produce large, destructive avalanches.
This layer has been more reactive near Rossland.
We are in a classic low probability but high consequence period.&nbsp; Collapsing cornices or a small avalanche in motion could step down to this buried weak layer.
We are in a classic low probability but high consequence period.&nbsp; Collapsing cornices or a small avalanche in motion could step down to a buried weak layer.
Heavy storm loading from snow or rain may trigger deeply buried persistent weak layers resulting in very large avalanches with wide propagations.
New snow has been slowly accumulating over a layer of facets and surface hoar, and in many places the overlying slab may now be primed for human triggering.
Avalanches on this layer are unlikely but would have disastrous consequences.
In deeper snowpack areas, surface hoar which was buried in early January is ripe for human triggering. Forecast warming will make avalanches failing at this interface more likely.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.</span><span class="s_AA239
Loading from new snow and rain will increase the likelihood of waking up destructive persistent weak layers at all elevation bands.
The persistent slab problem demands respect, especially in the north of the region. Very large avalanches are possible with human triggers, or a wind slab or cornice fall. Forecast warming is expected to increase the sensitivity of this problem.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.</span><span class="s_AA239
A deeply buried weak layer can still be triggered, creating very large avalanches. Forecast warming may increase the sensitivity of this problem over the next few days.
We are in a classic low probability but high consequence period.&nbsp; Collapsing cornices or a small avalanche in motion could step down to this buried weak layer.
Collapsing cornices or a small avalanche in motion could step down to a buried weak layer.
="s_3FE45715"> A smaller avalanche in motion could step down to a variety of buried persistent weak layers in the snowpack.
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> A smaller avalanche in motion could step down to a variety of buried persistent weak layers in the snowpack.</span><span class="s_AA239
A smaller avalanche in motion could step down to a variety of buried persistent weak layers in the snowpack.
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</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.</span><span class="s_AA239
="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_17AE1194">A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.</span><span class="s_AA239
A deeply buried weak layer can still be triggered, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.
Recent storm loading, solar radiation and skyrocketing freezing levels will increase the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls triggered by solar radiation may also trigger a persistent slab avalanche.
="s_3FE45715">Recent storm loading, solar radiation and skyrocketing freezing levels will increase the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls triggered by solar radiation may also trigger a persistent slab avalanche.
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</style><p class="p_CC664AAA"><span class="s_A8FEC758"> I would give it a couple more days to see how the warm temperatures have affected the reactivity of buried weak layers in the snowpack.</span><span class="s_AA239
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Forecast warming may increase the sensitivity of this problem.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Warm temperatures may increase the sensitivity of this problem.
A deeply buried weak layer can still be triggered in some places, creating very large avalanches. Warm temperatures may increase the sensitivity of this problem.
A deeply buried weak layer can still be triggered, creating very large avalanches. Warm temperatures may increase the sensitivity of this problem.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">I would give it a couple more days to see how the warm temperatures have affected the reactivity of buried weak layers in the snowpack.
="s_3FE45715">I would give it a couple more days to see how the warm temperatures have affected the reactivity of buried weak layers in the snowpack. A large trigger like a collapsing cornice could possible step down.
Recent storm loading, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
="s_3FE45715">Recent storm loading, rain, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
Recent storm loading, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
Recent storm loading, rain, solar radiation and skyrocketing freezing levels have increased the likelihood of waking-up deep and destructive persistent weak layers. Cornice falls may also trigger a persistent slab avalanche.
I'm uncertain about how the prolonged warm temperatures have affected the reactivity of buried weak layers in the snowpack. I'd continue to treat open features around tree line cautiously until the snowpack cools off.