Avalanche control work on Monday proved that this layer is still touchy. Most avalanches scrubbed down to the October 26th facet crust or the ground. This layer needs time to adjust to the load and this problem will be around for some time.
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The new snow in combination with a skier has the potential to overload this weakness.
Moderate SW winds and warming temps continue to add to the windslab problem.
The Dec. 11th layer of facets and surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
Continued moderate winds formed winds slabs in the alpine and exposed ares at tree line. Winds were out of the NE, reverse loading ridge tops where you may not expect to find regular wind slabs.
The November 21st interface may be the culprit for the skier accidental size 3.5 yesterday in Camp West. This problem woke up with the recent rapid loading from extreme winds, and significant new snow in January.
The Oct. 26 layer is still very active. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
Moderate - strong W winds and warming temps continue to add to the wind slab problem.
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The new snow in combination with a skier has the potential to overload this weakness.
The Dec. 11th layer of facets and surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
The Dec.10 layer of facets and some surface hoar are down 150+cm at treeline. There have been few observations from this deeper snowpack region as to the sensitivity of this layer, but recent avalanche control has seen deep propagations.
Continued snowfall, combined with mild temps, will have created soft storm slabs in many areas. In the region, storm slabs have been reactive and easily triggered by skiers. Be especially cautious in alpine areas, where it has buried windslabs.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">The </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">recent size 3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> highlights that in some areas persistent slabs may be reactive. The problem likely woke up with rapid wind loading and significant new snow in January, and was triggerable where the snowpack was shallow.
The Oct. 26 layer is still very active. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
Moderate - strong W winds, snow available for transport, and warming temps continue to add to the wind slab problem.
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The Jan 2-4th 85cm of new snow in combination with a skier has the potential to overload this weakness.
The Dec. 11th layer of facets and surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
The Dec.10 layer of facets and some surface hoar are down 150+cm at treeline. There have been few observations from this deeper snowpack region as to the sensitivity of this layer, but recent avalanche control has seen deep propagations.
There has not been much recent activity on the facets deep in the snowpack, but there is still the possibility to trigger them in shallow areas.
Recent snowfall combined with mild temps, has created soft storm slabs in many areas. Storm slabs have been reactive and easily triggered by skiers. Be especially cautious in alpine areas, where it has buried windslabs.
The recent size 3.5 skier triggered aval in Camp West path highlights that in some areas persistent slabs may be reactive. The problem likely woke up with rapid wind loading and significant new snow in January and was triggerable in a shallow area.
Moderate - strong SW winds, and significant amounts of snow available for transport. Avoid lingering in run-outs where active loading is happening and/or where there is no evidence of recent previous activity
The new snow seems to be bonding well to the old snow interface. In deeper snowpack areas, this deep weakness may be bridged by a sturdy new mid-pack. Build trust slowly in the new snowpack before committing to any large rideable slope.
The  facets and depth hoar 40 cm above the ground inspire little confidence. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
The Dec.10 layer of facets and some surface hoar are down 130+cm at treeline in the fatter snowpack areas more typical in this region. The sensitivity of this layer seems more concerning at lower elevations but few observations have been made so far
Recent snowfall combined with winds and mild temps has create storm slabs. Warm temperatures will increase slab properties and destabilize the surface snow, thereby increasing the likelihood of triggering this widespread problem.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
Strong SW winds, and significant amounts of snow available for transport have created wind slab in lee features. 
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load.  Build trust slowly in the new snowpack before committing to any large rideable slope.
Rising freezing levels could result in fresh cornices to fail triggering deep instabilities.
The facets and depth hoar 40 cm above the ground inspire little confidence. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
These wind slabs are becoming less reactive but should be treated with respect if encountered.  If initiated these slabs could provide enough load to trigger the deeper basal layers.
The Dec.10 layer of facets and some surface hoar are down 130+cm at treeline in the fatter snowpack areas more typical in this region. The sensitivity of this layer seems more concerning at lower elevations but few observations have been made so far
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the new snowpack before committing to any large rideable slope.
Strong SW winds, and significant amounts of snow available for transport have created wind slab in lee features.
Recent SW winds have added to existing cornices, this combined with strong diurnal temperature fluctuations could cause cornices to fail and trigger deep instabilities.
The facets and depth hoar 40 cm above the ground inspire little confidence. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
These wind slabs are becoming less reactive but should be treated with respect if encountered. If initiated these slabs could provide enough load to trigger the deeper basal layers.
The Dec.10 layer of facets and some surface hoar are down 130+cm at treeline in the fatter snowpack areas more typical in this region. The sensitivity of this layer seems more concerning at lower elevations but few observations have been made so far
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
Warm temps and strong sunshine on steep solar aspects will cause natural avalanches at the warmest part of the day.
Surface slabs exist at all elevations and aspects, but may be more likely to trigger on solar aspects with the warm temp's and intense sunshine.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
This problem will only exist in solar facing terrain from early afternoon until sundown. Moist releases and sluffing from cliffs when combined, through entrainment, may have sufficient mass to trigger the deep persistent slab.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the new snowpack before committing to any large rideable slope.
The wind slabs appear to bonding well to the lower snowpack. Last weeks snow continues to settle and there is only minimal snow transport taking place near ridge line in the alpine.
The weak facets and depth hoar  just  above the ground have an significant slab sitting above them . It is difficult to travel with any confidence given this structure. Some large natural avalanches are still occurring and human triggering is likely.
These wind slabs are becoming older and are likely less reactive but should be treated with respect especially while the warm conditions continue. If initiated these slabs could provide enough load to trigger the deeper basal layers.
In deeper snowpack locations the Dec 10 layer is a thin, separated, layer of facets about 120cm deep which is becoming less of a problem. In thinner areas however, a thick layer of facets sits just below the Dec 10 layer which is about 80cm deep.
South and West winds built these slabs over the last week. While these slabs are becoming old, they are still worthy of respect, especially while the warm conditions continue.
The previous warm, sunny days likely have cooked solar aspects, but we may still see loose, moist avalanches running during the warmest part of the day. Steep S/SW aspects are the most suspect for triggering.
Surface slabs exist at all elevations and aspects, but may be more likely to trigger on solar aspects with the warm temp's and intense sunshine.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Some large natural avalanches are still occurring and human triggering is likely
These wind slabs are becoming older and are likely less reactive but should be treated with respect especially while the warm conditions continue. If initiated these slabs could provide enough load to trigger the deeper basal layers.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the snowpack before committing to any large rideable slope.
This problem will only exist in solar facing terrain from early afternoon until sundown.
Recently formed wind slabs appear to bonding well to the snowpack below.
In deeper snowpack locations the Dec 10 layer is a thin, separated, layer of facets about 120cm deep which is becoming less of a problem. In thinner areas however, Dec 10 is only about 80cm deep and has a thick, weak, facet layer siting just below.
South and West winds built these slabs over the last week. While these slabs are becoming old, they are still worthy of respect, especially while the warm conditions continue.
Recent snowfall combined with winds and mild temps has create storm slabs. Warm temperatures will increase slab properties and destabilize the surface snow, thereby increasing the likelihood of triggering this widespread problem.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
The likelihood of triggering this layer is low but the consequences are high, as the result would be a large destructive avalanche. Watch for thin areas or convexities in the snowpack where human triggering is possible.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
In deeper snowpack locations the Dec 10 layer is a thin, separated, layer of facets about 120cm deep which is becoming less of a problem. In thinner areas however, Dec 10 is only about 80cm deep and has a thick, weak, facet layer siting just below.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the snowpack before committing to any large rideable slope.
Recently formed wind slabs appear to bonding well to the snowpack below.
Wind slabs are present on lee features in the alpine and exposed areas that have been subjected to downflow winds. These slabs tend to make for challenging skiing conditions. It is possible to trigger these slabs in steep, unsupported terrain.
Regardless of snowfall amounts, Wind Slabs will continue to build over a crust / surface hoar&nbsp; layer during the forecast period.
This layer likely requires a large trigger. New wind slabs may step down causing large avalanches.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
Use caution in shallow snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Recently formed wind slabs appear to bonding well to the snowpack below. Light winds and strong diurnal swings have reduced the reactivity of this problem yet it will exist on locations where wind has either pressed or loaded the slope.
The weak facets and depth hoar just above the ground have an significant 100-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
Wind slabs are now concealed by 10cm of new snow, but are present on lee features and exposed areas in the alpine. These slabs tend to make for challenging skiing conditions. It is possible to trigger these slabs in steep, unsupported terrain.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
The weak facets and depth hoar just above the ground have an significant 100-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
The new snow will increase the reactivity of this deeply buried problem.&nbsp; An avalanche of this nature would be large with severe consequences.
The incoming new snow and strong SW winds will produce windslabs at all elevations. Beneath the slab is a widespread surface hoar layer on most aspect from treeline to the valley bottom. Also near treeline on southerly slopes is a buried sun crust.
Incoming storm snow will load on top of a widespread Jan 17th surface hoar layer. The bond to the old snow surface is suspect at all elevations. Warming temperatures may make the surface slab more sensitive to human triggering.
Surface sloughing of storm snow can be expected in steeper terrain. This may pose a hazard in terrain  trap features such as gulleys.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
As of publication, we are close to threshold values for windslab. We need a little more input for this to become more widespread.
The weak facets and depth hoar just above the ground have an significant 100-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
Moderate winds over the day and night Saturday will create new windslab over a mix of surface conditions (facets, surface hoar, crust). Expect these to be reactive with extra caution to areas where surface hoar may be preserved.
Use caution in shallow snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
A storm slab sits on top of the January 17th surface hoar layer and old windslab depending on location. TL field trips yesterday found it to be very soft. Wind effected areas at higher elevation are expected to be more sensitive with a denser slab.
Moderate winds over the weekend have created isolated new windslab over a mix of surface conditions (facets, surface hoar, crust).
Use caution in shallow snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Weak facets and depth hoar are found just above the ground have an significant 50-140cm thick slab sitting above them. While natural  activity has dropped off,  human triggering is still possible. Be very cautious with thin snowpack areas . 
Southwest winds in the moderate to strong range Saturday created thin, soft slabs in the alpine 10 to 20cm deep.
Weak facets and depth hoar found just above the ground  have an significant 50-140cm thick slab sitting above them. While natural activity has dropped off, human triggering is still possible. Be very cautious with thin snowpack areas .
Southwest winds in the moderate to strong range Saturday created thin, soft slabs in the alpine 10 to 20cm deep.
Over the weekend we received 20cm of new snow accompanied by extreme winds forming wind slabs in specific locations throughout the park. This overlies the Jan 17th SH layer in sheltered areas and old unreactive wind slabs in exposed terrain.
Weak facets and depth hoar are present at the base of the snowpack in thin snowpack areas, and have a significant slab sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible in these areas
Southwest winds in the moderate to strong range on Saturday created thin, soft wind slabs in the alpine 10 to 20 cm deep. Use caution in lee areas.
Weak facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible, especially in thin snowpack areas.
Southwest winds in the moderate to strong range on Saturday created thin, soft wind slabs in the alpine 10 to 20 cm deep. Use caution in lee areas.
Moderate winds over the weekend have created isolated new windslab over a mix of surface conditions (facets, surface hoar, crust).
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Wind Slabs will continue to build over a crust / surface hoar layer and may propagate farther than expected. Dig down and investigate the bond of new snow before committing to your line.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Over the weekend we received 20cm of new snow accompanied by extreme winds forming wind slabs in isolated locations throughout the park. This soft slab overlies the Jan 17th SH in sheltered areas and old unreactive wind slabs in exposed terrain.
Weak facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible, especially in thin snowpack areas.
Southwest winds in the moderate to strong range have created thin, soft wind slabs in the alpine 10 to 20 cm deep. Use caution in lee areas.
Weak facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible, especially in thin snowpack areas.
Southwest winds in the moderate to strong range have created thin, soft wind slabs in the alpine 10 to 20 cm deep. Use caution in lee areas.
Moderate to strong winds over the weekend have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Over the weekend we received 20cm of new snow accompanied by extreme winds forming wind slabs in isolated locations throughout the park. This soft slab overlies the Jan 17th SH in sheltered areas and a suncrust on steep solar aspects.
Southwest through northwest winds have formed thin wind slabs over a crust / surface hoar layer and may propagate farther than expected. Dig down and investigate the bond of new snow before committing to your line.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Thin wind slabs are stubborn but still show potential for triggering in the alpine.  Increased winds on Thursday may add to their development.  These will not be a long term problem. 
In Little Yoho, areas that have a thin snowpack will have weaker basal facets that can still be triggered.&nbsp; Check locally for snowpack depths as thicker areas do not have the same problem.&nbsp;
Thin wind slabs are still capable of producing smaller avalanches.&nbsp; Strong winds Thursday may add to their development, but should only be a concern for the next few days.
Moderate to strong winds over the weekend have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
The Jan 17th layer is down 20-40cm and consists of surface hoar in sheltered areas and sun crust on steep solar aspects. This layer seems more problematic between 1600-2100m where soft slab exists, human triggered avalanches remain possible.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Westerly winds have formed thin wind slabs over a crust layer.
Moderate to strong winds have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Some thin wind slabs have been triggered in isolated areas over the last few days which will only be a problem in the short term.&nbsp;
In Little Yoho, areas with a thin snowpack are still a question for forecasters. It is suspected that the deeper facet layers will be more prevalent in these areas . Check locally for snowpack depths as thicker regions do not have the same problem.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Thin wind slabs are stubborn but still show potential for triggering in the alpine. Increased winds on Thursday may add to their development. These will not be a long term problem.
Strong S winds have created windslabs at treeline and above. These slabs have been easily triggered by skier loads in steep unsupported terrain. When triggered in certain areas, wind slabs may propagate into large avalanches.
The Jan 17th layer is down 20-40cm and consists of surface hoar in sheltered areas and sun crust on steep solar aspects. This layer seems more problematic between 1600-2100m. Where soft slab exists, human triggered avalanches are possible.
Moderate to strong winds have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Thin wind slabs are currently stubborn and a bit old. Some are thinly buried near treeline but slabs still show potential for triggering and are more common in the alpine. These will build and may become touchy over the next two days.
Some thin wind slabs have been triggered in isolated areas over the last few days. These slabs are now a bit old and even a bit buried. Watch for windslabs to develop further with the winds and small amounts of precip forecast for Saturday and Sunday
In Little Yoho, areas with a thin snowpack are still a question for forecasters. It is suspected that the deeper facet layers will be more prevalent in these areas . Check locally for snowpack depths as thicker regions do not have the same problem.
Strong S winds continue to load lee aspects and create windslabs at treeline and above. These slabs have been easily triggered by skier loads in steep unsupported terrain. When triggered, wind slabs may propagate into large avalanches.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Thin wind slabs are currently stubborn and a bit old however with strong winds in the forecast, the potential for these, or cornice features to fail will remain for Sunday.&nbsp;
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Westerly winds have formed thin wind slabs over a crust layer.
These slabs are now a bit old and even a bit buried. Nevertheless, with strong to extreme winds in the forecast for Sunday morning, the potential for these, or cornices to fail will be elevated.
In Little Yoho, areas with a thin snowpack with more developed faceting still raise concern. Many of the areas in this region hold a deeper snowpack where this problem is not a concern. Travelers are advised to investigate snow depths with a probe.
Strong winds last week left widely scoured surfaces with pockets of hard windslab. These appear to be stubborn to human triggering. Strong alpine winds expected Sunday maintaining this problem.
Despite lack of natural activity, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists in most skiable slopes and would be severe consequences if triggered.
Strong S winds continue to load lee aspects and create windslabs at treeline and above. These slabs have been easily triggered by skier loads in steep unsupported terrain. When triggered, wind slabs may propagate into large avalanches.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
In Little Yoho, areas with a thin snowpack with more developed faceting still raise concern. Many of the areas in this region hold a deeper snowpack where this problem is not a concern. Travelers are advised to investigate snow depths with a probe.
Despite lack of recent natural activity, this layer is widespread, and would have high consequences if triggered. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
Variable accumulation of fresh snow Sunday with gusty NW winds has created small, reactive storm slabs, particularly where loaded by NW winds, over a variety of surfaces from suncrust, surface hoar and wind pressed areas.
Strong S winds have created variable wind slabs at tree-line and above. The slab varies from soft/skiable to perfect igloo-block building crud. Expect a range of surface conditions if you go up high today.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
New soft wind slabs can likely be located in high elevation lee areas. Forecasters don't expect them to be more than 20cm thick.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
New soft wind slabs can likely be located in high elevation lee areas. Forecasters don't expect them to be more than 20cm thick.
Old Wind Slabs exist in typical lee ares but be on the lookout for reverse loading creating new Wind Slabs on Northerly aspects.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
New snow on Sunday arrived with Strong winds (ranging from SW to N) creating windslabs over a variety of surfaces, including suncrust, surface hoar, and wind pressed areas. While natural activity has tapered, human triggering remains possible.
A natural avalanche Monday on this layer shows that only minor changes may wake this generally dormant dragon. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
Strong to Extreme Southerly over the weekend created variable wind slabs at tree-line and above. The slab varies from soft/skiable to perfect igloo-block building crud. Expect a range of surface conditions if you go up high today.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Soft wind slabs can likely be located in high elevation lee areas. Forecasters don't expect them to be more than 20cm thick.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Soft wind slabs can likely be located in high elevation lee areas. Forecasters don't expect them to be more than 20cm thick.
New snow on Sunday arrived with Strong winds (ranging from SW to N) creating windslabs over a variety of surfaces, including suncrust, surface hoar, and wind pressed areas. While natural activity has tapered, human triggering remains possible.
A natural avalanche Monday on this layer shows that only minor changes may wake this generally dormant dragon. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but may still be found in extreme terrain.
A well settled mid-pack sits over top of a deep persistent facet layer (Dec 10 layer). Stability tests show moderate to hard results within this facet layer.
Fresh wind slabs are expected from forecasted snow and winds on Friday.
New snow on Sunday arrived with Strong winds (ranging from SW to N) creating windslabs over a variety of surfaces, including suncrust, surface hoar, and wind pressed areas.
A natural avalanche Monday on this layer shows that only minor changes may wake this generally dormant dragon. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
New snow may overload the deep persistent weakness. Avoid avalanche terrain.
New snow may overload the deep persistent weakness. Avoid avalanche terrain.
Strong to Extreme Southerly over the weekend created variable wind slabs on specific terrain features in the Alpine and at Tree Line. It's most problematic on South aspects in shallow snowpack areas that are steep, rocky, and unsupported.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Snow is forecasted for the next several days. Expect new snow to bond poorly causing loose avalanches in steep terrain. This problem will transition into a storm slab as snowfall amounts build up over the next 24hrs. Winds will increase snow loading.
35cm of storm snow has created a reactive storm slab problem. Another 35cm of snow is expected to fall by Saturday afternoon with strong winds. Rapid loading will turn these slabs into a widespread touchy problem where natural avalanches are certain.
New windslabs will be forming with the incoming storm on Saturday. As the winds switch from southwest to northeast on Saturday night, be aware of the potential for reverse loading.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Fresh wind slabs can be expected from forecasted new snow and winds on Friday.
In Little Yoho the mid and lower pack is generally well settled with no significant shears. In some areas where the snowpack is shallower the Dec 10 persistent facet layer is producing shears in the hard range.
We expect 20-50 cm of storm snow by Sunday with moderate-strong SW-SE winds. Storm slabs will form in many areas. Natural avalanches are expected in steep terrain and human triggering will be likely in deeper storm snow areas.
Loose dry avalanches are expected in steep terrain and gullies. Climbers and skiers should avoid overhead hazard until the new snow has a chance to bond.
The new snow load may start waking up the Dec 10th deep persistent facet weakness down 60-140 cm. This is of greatest concern in shallow snowpack areas where the basal facets are weakest.
We expect 20-40 cm of storm snow by Sunday with moderate-strong SW-SE winds. Storm slabs will form in many areas. Natural avalanches are expected in steep terrain and human triggering will be likely in deeper storm snow areas.
Loose dry avalanches will occur in steep alpine terrain until the storm finishes. Ice climbers and skiers should avoid steep gullies and overhead hazard until the new snow has a chance to bond.
In isolated shallow snowpack areas of Little Yoho the new snow load may wake up the Dec 10th deep persistent facet weakness.
75cm of storm snow has created a reactive storm slab problem. Strong S winds are now battering the pass reloading areas that have previously avalanched. Rapid loading has turned these slabs into a touchy problem where natural avalanches are certain.
25-40cm of new snow has fallen under warmer temperatures at all elevations which will be reactive in the short term. The Jan. 17th layer is buried up to 65cm deep and consists of surface hoar, facets or crust and can be found up to 2300m.
The new snow load may start waking up the deep persistent facet weakness down 80-160 cm. This is of greatest concern in shallow snowpack areas where the basal facets are weakest.
Expect storm slabs to be reactive in the short term on many aspects. Especially watch areas where the buried Jan. 17th surface hoar and/or crust layer is present . This has been found below 2200m and where found, was reactive before this last storm.
In isolated shallow snowpack areas of Little Yoho the new snow load may wake up the deep persistent facet weakness.
Avoid avalanche terrain until the storm subsides and the snowpack can settle.
New snow may overload the deep persistent weakness. Avoid avalanche terrain.
70cm of storm snow has created a reactive storm slab problem. Strong S winds have now shifted to moderate NE wind reverse loading exposed areas. Expect the storm slab to be more reactive in wind effected areas.
Wind was observed redistributing the recent storm snow in the alpine and creating fresh windslabs in lee areas. These slabs could be up to 70cm deep. For clarity, the storm slab problem has transitioned into the windslab problem.
The new snow load may start waking up the deep persistent facet weakness down 80-160 cm. This is of greatest concern in shallow snowpack areas where the basal facets are weakest.
Wind was observed redistributing the recent storm snow in the alpine and creating fresh windslabs in lee areas. These slabs could be up to 70cm deep. For clarity, the storm slab problem has transitioned into the windslab problem.
Up to 50cm of recent snow followed by strong winds have redistributed the snow into thick slabs well into the terrain.
New snow with strong winds may overload the deep persistent weakness.
New low density snow sluffing out of very steep rocky terrain. 
70cm of storm snow, plus strong to extreme Southerly winds created wind and storm slabs over the weekend. On Sunday Strong NE winds relocated our storm snow again into wind slabs on specific terrain features at all aspects and elevations.
Windslabs have formed with recent new snow and NE winds, and may take longer than usual to bond with cold temperatures.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
Recent winds have redistributing the storm snow in the alpine and created fresh windslabs in lee areas. These slabs could be up to 70cm deep.
The new snow load may start waking up the deep persistent facet weakness down 80-160 cm. This is of greatest concern in shallow snowpack areas where the basal facets are weakest.
Recent winds were observed redistributing the new storm snow in the alpine, creating fresh windslabs in lee areas. These slabs could be up to 70cm deep.
Up to 50cm of recent snow followed by strong winds has built thick slabs well into the terrain.
New snow with strong winds recently overloaded the deep persistent weakness.
Expect sluffing out of steep rocky terrain when the sun is on it.
70cm of storm snow, plus strong to extreme Southerly winds created wind and storm slabs over the weekend. On Sunday Strong NE winds relocated our storm snow again into wind slabs on specific terrain features at all aspects.
Wide spread wind effect from this weekend has left windslabs on NE to SE aspects. These slabs could be up to 70cm deep.
Up to 50cm of recent snow followed by strong winds has built thick slabs well into the terrain.
New snow with strong winds recently overloaded the deep persistent weakness in shallow snowpack areas.
Expect sluffing out of steep rocky terrain if the sun is on it.
Wide spread wind effect from this weekend has left windslabs on NE to SE aspects. These slabs could be up to 70cm deep.
70cm of storm snow, plus strong variable winds created wind slabs over the weekend. Skiers are find this problem most reactive along ridge crest and cross loaded terrain features.
Up to 50cm of recent snow followed by strong winds has built thick slabs.&nbsp;
New snow with strong winds recently overloaded the deep persistent weakness in shallow snowpack areas.
Expect sluffing out of steep rocky terrain if the sun is on it.
This problem is not widespread but we are still seeing activity today in the Sunshine region, and reports from Highway 93S. Forecasters have limited observations from alpine areas.
Some areas have still reported active wind slabs formed last weekend.  These are decreasing in likelihood.
Last weekends storm snow and strong variable winds created wind slabs in the alpine and exposed areas at tree line. Skiers are find this problem most reactive along ridge crest and cross loaded terrain features.
Expect sluffing out of steep rocky terrain if the sun is on it.
Up to 50cm of recent snow followed by strong winds has built thick slabs.
New snow with strong winds recently overloaded the deep persistent weakness in shallow snowpack areas.
Windslabs have formed with recent SW winds. Expect reverse loading as the wind swings NE Friday Morning
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
Last weekend's storm snow and strong variable winds created wind slabs in the alpine and exposed areas at tree line. This problem is most reactive along ridge crest and cross loaded terrain features.
Expect sluffing out of steep rocky terrain
Just a reminder, this is still there and can still be triggered from shallow snowpack areas. See avalanche activity summary.
Strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs can create large avalanches with wide propagations.
Expect sluffing out of steep rocky terrain. Cold temperatures continue to loosen the surface snow to the point where it looses structure and avalanches as a point release. They can pick up enough mass to be a concern.
Just a reminder, this is still present and can still be triggered from shallow snowpack areas. See avalanche activity summary.
Strong to extreme N through E winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs are sensitive to human triggering.
Expect sluffing out of steep rocky terrain. Cold temperatures will loosen the surface snow to the point where it loses structure and avalanches as a point release. They can pick up enough mass to be a concern.
Just a reminder, this is still present and can still be triggered from shallow snowpack areas. See avalanche activity summary.
Strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs are sensitive to human triggering.
Cold temperatures continue to weaken the surface snow.  Expect sluffing out of steep rocky terrain.
This is still present and could still be triggered from shallow snowpack areas. See MIN report.
Old wind effect and isolated pockets of newly formed windslab can be found in the alpine. With small inputs of snow and wind on Tuesday, this problem may continue to develop.
Old wind effect and isolated pockets of newly formed windslab can be found in the alpine. With small inputs of snow and wind on Tuesday, this problem may continue to develop.
Ski quality is best in sheltered trees.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
Recent strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs are sensitive to human triggering.
Old wind effect and isolated pockets of newly formed wind slab can be found in the alpine. Expect to find this problem most prevalent in immediate lee features off ridge crest.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Cold temperatures continue to weaken the surface snow. Expect sluffing out of steep rocky terrain.
This problem is still present and could be triggered from shallow snowpack areas. See MIN report.
Old wind effect and isolated pockets of newly formed wind slab can be found in the alpine. Expect to find this problem most prevalent in immediate lee features off ridge crest.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Recent strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust.
Wind effect in the alpine and tree line. In the right spot you could trigger a windslab.
This problem is still present and could be triggered from shallow snowpack areas. See MIN report.
Storm snow is reactive to human traffic. More specific will information available in tomorrow's forecast
Use caution in steep, sheltered terrain
A layer of weak facets is lurking at the bottom of the snowpack.&nbsp; This new snow may be enough to affect this basal weakness in shallow snowpack areas.
We expect the odd windslab to rear its head in steep, alpine terrain. Pay particular attention to this if you are in any terrain with consequence below you such as cliffs or other terrain traps.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
We expect the odd windslab to rear its head in steep, alpine terrain. Pay particular attention to this if you are in any terrain with consequence below you such as cliffs or other terrain traps.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Saturday's wind event ravaged the upper snowpack in the Alpine and exposed areas of Tree Line; leaving behind a variety of surface conditions varying from Pencil resistance hard slabs to soft near surface facetting.
This problem could be triggered from shallow snowpack areas.
Somewhat of a warm up over the next few days from the previous frigid temperatures could generate some cornice failures
We expect the odd windslab to rear its head in steep, alpine terrain. Pay particular attention to this if you are in any terrain with consequence below you such as cliffs or other terrain traps.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
We expect the odd windslab to rear its head in steep, alpine terrain. Pay particular attention to this if you are in any terrain with consequence below you such as cliffs or other terrain traps.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Moderate Compression Test Results today on Forum Ridge at the Storm snow interface. 15-30cm of snow over the weekend will continue to build storm slabs.
Use caution in steep, sheltered terrain.
A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.
Ongoing moderate winds have created widespread wind affect in the Alpine and exposed areas at Tree Line, making for challenging travel. Windslabs vary from supportive hard slabs to pockets of wind-loaded facets.
Moderate Compression Test Results today on Forum Ridge at the Storm snow interface. 15-30cm of snow over the weekend will continue to build storm slabs.
Use caution in steep, sheltered terrain.
A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.
It is possible to trigger deep slabs from shallow snowpack areas. If triggered, these will have severe consequences. Terrain management is critical to a safe day.
A few CM of new snow may add to the volume of loose dry avalanches, which have been occurring naturally as the snowpack surface facetted with cold temps. Ice climbers should consider consequences of an avalanche if climbing in confined gully features
Variable winds through the weekend are expected to move alpine snow around. Although slab formation will likely be slow with cold dry snow, the bond to the dry, faceted surface snow will be weak.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Variable winds through the weekend are expected to move alpine snow around. Although slab formation will likely be slow with cold dry snow, the bond to the dry, faceted surface snow will be weak.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Ongoing winds have hammered the alpine and exposed areas at tree line, making for challenging travel conditions. Slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elevations slabs could propagate on buried surface hoar.
Older wind slabs are still active in isolated areas.  Watch for pockets of these in steeper alpine areas, as well as below cliff faces where spin drift has formed thicker slabs.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Variable winds through the weekend are expected to move alpine snow around. Although slab formation will likely be slow with cold dry snow, the bond to the dry, faceted surface snow will be weak.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
It is possible to trigger deep slabs from shallow snowpack areas. If triggered, these will have severe consequences. Terrain management is critical to a safe day.
Little new snow to add to the volume in active loose dry avalanches occurring naturally in the facetted snow from recent cold temps. Ice climbers should consider consequences of an avalanche if climbing in confined gully features
Ongoing winds have hammered the alpine and exposed areas at tree line, making for challenging travel conditions. Slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elevations slabs could propagate on buried surface hoar.
15cm of new snow and surface facets are sluffing fast in steep alpine terrain. Be very cautious of being hit by these loose avalanches while moving in gullies and confined terrain. Sun-warmed cliffs can shed snow quickly, triggered loose avalanches.
New snow and some light North wind have created new soft windslabs in the last 24 hours. As of today these slabs were not producing anything larger than a size 2. 
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
New snow and some light North wind have created new soft windslabs in the last 24 hours. As of today these slabs were not producing anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Previous strong winds have hammered the alpine and exposed areas at tree line, making for challenging travel conditions. Slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elev slabs could propagate on buried surface hoar.
15cm of new snow and surface facets are sluffing fast in steep alpine terrain. Be very cautious of being hit by these loose avalanches while moving in gullies and confined terrain. Sun-warmed cliffs can shed snow quickly, triggered loose avalanches.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Sun can act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain. Definitely a problem ice climbers should keep on radar where a small slide can quickly gain mass particularly in terrain traps.
Wind slabs will continue to develop on all aspects with winds switching from W to NE on Wednesday.
A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.
New snow and some light North wind have created new soft wind slabs. These slabs have yet to produce anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
New snow and some light North wind have created new soft wind slabs. These slabs have yet to produce anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Previous strong winds have hammered the alpine and exposed areas at tree line. Buried slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elev slabs could propagate on buried surface hoar.
15cm of new snow covers surface facets and surface hoar. The storm snow is bonding poorly and easily sluffing in steep alpine terrain. Be cautious of being hit by these loose avalanches while moving in gullies, chutes and confined terrain features.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Sun may act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain. Definitely a problem ice climbers should keep on radar where small slides can gain mass particularly in terrain traps.
New snow and Light to Moderate westerly winds have created wind slabs. These slabs have yet to produce anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
New snow and Light to Moderate westerly winds have created wind slabs. These slabs have yet to produce anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain. 
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Sun may act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain. Definitely a problem ice climbers should keep on radar where small slides can gain mass particularly in terrain traps.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Pockets of reactive wind slab still exist in the alpine and open areas at tree line, though becoming hard to find. But remember, even a small wind slab can have big consequences in the right/wrong terrain feature (steep, rocky, exposed terrain, etc).
20cm of recent snow covers facets and surface hoar. The snow is bonding poorly and easily sluffing in steep terrain. Be cautious of being hit or triggering these loose avalanches while in gullies, chutes and exposed steep rocky terrain.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Pockets of wind slab still exist in the alpine and open areas at tree line, though becoming hard to find. Even a small wind slab can have big consequences in the right/wrong terrain feature (steep, rocky, exposed terrain, etc).
15cm of settled snow covers facets and surface hoar, the snow is bonding poorly and sluffs easily. Be cautious on solar aspects where the sun can weaken the upper snowpack, especially in steep rocky terrain.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
The sun will act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain near and above ice climbs.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Wind slabs will continue to develop with moderate to strong westerly winds on Friday, and moderate Easterly winds on Sunday
A layer of weak depth hoar and facets is lurking at the bottom of the snowpack. Recent snow may have been enough to overload this layer in thin snowpack areas.
Pockets of wind slab still exist in the alpine and open areas at tree line, though becoming hard to find. Even a small wind slab can have big consequences in certain terrain features (steep, rocky, exposed terrain, etc).
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Strong SW winds at parkers upper for the last 24 hours, creating wind slabs in immediate lee's.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Backcountry travelers may find pockets of wind slab in the alpine and open areas at tree line. Even a small wind slab can have big consequences in certain terrain features (steep, rocky, exposed terrain, etc).
Winds slabs formed from recent W winds have now been buried by Saturdays snowfall and may be hard to detect.
Recent snow has been enough to create a slab over deep instabilities below treeline where the snowpack is shallow and weak, and melt freeze crusts have been preserved. These were reactive to skier traffic on Mt. Bertha on Thursday.
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Strong SW winds blew for 24 hours yesterday in the columbia Icefields area, and have now switched to steady moderate from N. In the southern areas of the bulletin region, expect a cornucopia of windslabs on a variety of aspects.
Although natural deep persistent slab avalanches have been few and far between lately, they are still possible in isolated places. Steep, unsupported, and thin/variable depth are factors to be wary of.
This problem is probably isolated to terrain where surface snow doesn't show signs of previous wind affect : all elevations at the north end of the bulletin region, but only lower elevations in the Columbia Icefields region
Windslab in the alpine presently appears to be more of a ski quality issue than an avalanche problem. However given the right location (steep, rocky, thin snowpack feature etc.) it may still be possible to trigger the slab.
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places. Steep, unsupported, and thin depth are factors to be wary of, as are cornices overhead.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect : all elevations at the north end of the bulletin region, but only lower elevations in the Columbia Icefields region
Wind slab in the alpine presently appears to be more of a ski quality issue than an avalanche problem. However given the right location (steep, rocky, thin snowpack feature etc.) it may still be possible to trigger the slab.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Watch out for pockets of windslabs in the alpine in immediate lee's
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places. Steep, unsupported, and thin depth are factors to be wary of, as are cornices overhead.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect : all elevations at the north end of the bulletin region, but only lower elevations in the Columbia Icefields region
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.
Watch for reverse loading with recent N-E Winds.
Recent snow has been enough to create a  windslab over deep instabilities below treeline where the snowpack is shallow and weak, and melt freeze crusts have been preserved.
Loose sluffs in steep terrain can push a person off their feet. South-facing gullies are receiving small, incremental amounts of loose, dry snow from northerly winds.
Wind slab in the alpine presently appears to be more of a ski quality issue than an avalanche problem. However given the right location (steep, rocky, thin snowpack feature etc.) it may still be possible to trigger the slab.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect.
Watch out for pockets of windslab in the alpine from previous SW switching to Northerly winds
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Loose sluffs in steep terrain can push a person off their feet. South-facing gullies are receiving small, incremental amounts of loose, dry snow from northerly winds.
Wind slab in the alpine presently appears to be more of a ski quality issue than an avalanche problem. However given the right location (steep, rocky, thin snowpack feature etc.) it may still be possible to trigger the slab.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect.
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places.
Previous moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Point release activity is increasing with strong solar input particularly on steep S and W aspects at TL and below.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Watch for new windslabs developing with NE winds, and old windslabs on all aspects.
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
Previous moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Point release activity can increase with strong solar input particularly on steep S and W aspects at all elevations. Cold temperatures continue to facet the surface snow causing it to loose cohesion.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A mix of fresh and old wind slabs have been stubborn but active, and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A mix of fresh and old wind slabs have been stubborn but active, and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
Loose dry point release slides were sporadically occurring on steep solar aspects yesterday afternoon. Look for this to happen again today with prolonged solar input.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
A mix of fresh and old wind slabs have been stubborn but active, and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
A mix of fresh and old wind slabs have been stubborn but active, and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas. These slabs may be overlying old dormant wind slabs or weak faceted snow.
Loose dry point release slides are a possibility on southern aspects with prolonged solar input.
Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
A mix of fresh and old wind slabs have been stubborn but active, and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Old windslabs are lingering in the alpine, and new windslabs will be forming as winds increase from the SW on Thursday
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
A mix of fresh and old wind slabs have been stubborn but active, and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas. These slabs may be overlying old dormant wind slabs or weak faceted snow.
Today the solar input will be the strongest we have seen during this cold dry spell. Loose dry point releases are possible on steep southern aspects. Snow around cliff bands and rocks, are the most likely starting points for the loose dry problem.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Cold temperatures have facetted/weakened the upper snowpack. Point release activity will increase with warming on steep solar aspects at all elevations.
The weak and facetted snowpack is about to be tested by warming temperatures, then some new snow, for the first time in over a month. Triggering of the basal weakness may become possible in areas where the snowpack above still retains some cohesion.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Previous strong winds and cold temperatures have formed wind slabs. These generally &quot;small&quot; reactive wind slabs can still be found in isolated areas. The slabs may be overlying old dormant wind slabs, and or weak faceted snow.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
The weak and facetted snowpack is about to be tested by warming temperatures, then some new snow, for the first time in over a month. Triggering of the basal weakness may become possible in areas where the snowpack above still retains some cohesion.
New snow and west winds could create wind slabs in the alpine.
Small amounts of new snow can add up to sizeable sluffs in steep, confined gullies. Best to give steep couloirs a miss today as the new snow will likely not bond well to the crusts on S aspects, nor the loose facets on N aspects.
Previous strong winds and cold temperatures have formed wind slabs. These generally &quot;small&quot; reactive wind slabs can still be found in isolated areas. The slabs may be overlying old dormant wind slabs, and or weak faceted snow.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Forecasted snow and winds could increase the reactivity of this problem in the alpine.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Forecasted snow and winds could increase the reactivity of this problem in the alpine.
New snow and west winds could create wind slabs in the alpine. These slabs sit above a new surface hoar layer and temperature crusts on solar facing slopes.
The weak and facetted snowpack is about to be tested by warming temperatures, then some new snow, for the first time in over a month. Triggering of the basal weakness may become possible in areas where the snowpack above still retains some cohesion.
Winds have shifted from NE to SW on Thursday. Watch for Windslabs on all aspects in exposed terrain.
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
The 10cm of new snow is not likely to bond very well to crusts on solar aspects and facets on polar aspects and should be a concern if considering riding steep faces, skiing above cliffs or traveling in confined chutes.
New snow and moderate Southerly winds have formed wind slabs along lee and cross loaded features. The slabs may be overlying weak faceted snow so watch for shooting cracks, settlements and hollow sounds from the snowpack.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. The new snow and winds have triggered many events in the last 24 hrs.
Touchy new slabs can be found in wind loaded areas up to 40cm thick. These slabs will be found sitting on the weak, faceted snow that was previously on the surface and we expect the bond to this snow to be poor.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. The new snow and winds have triggered many events in the last 24 hrs.
Touchy new slabs can be found in wind loaded areas up to 40cm thick. These slabs will be found sitting on the weak, faceted snow that was previously on the surface and we expect the bond to this snow to be poor.
While skiier triggered sluffs may be possible in some areas if adventuring into very steep, shaded terrain, minimal natural activity is expected.  If any, it will be isolated to steep sunny slopes during the afternoons.
30cm of recent snow and moderate Southerly winds have formed wind slabs along lee and cross loaded features. The slabs may be overlying weak faceted snow so watch for shooting cracks, settlements and hollow sounds from the snowpack.
The recent snow is not likely to bond well to crusts and facets and should be a concern if considering riding steep faces, skiing above cliffs or traveling in confined chutes. If the sun shines today watch for point releases from steep, rocky areas.
Skier triggered sluffs may be possible on both sun, and shaded terrain; minimal natural activity is expected. If any, it will be isolated to steep sunny slopes during the afternoons.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
New small slabs can be found in wind loaded areas up to 40cm thick. These slabs will be found sitting on the weak, faceted snow that was previously on the surface .
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
New small slabs can be found in wind loaded areas up to 40cm thick. These slabs will be found sitting on the weak, faceted snow that was previously on the surface .
30cm of recent snow and moderate Southerly winds have formed wind slabs along lee and cross loaded features. The slabs may be overlying weak faceted snow so watch for shooting cracks, settlements and hollow sounds from the snowpack.
The recent snow is not likely to bond well to crusts and facets and should be a concern if considering riding steep faces or traveling in confined chutes, manage your sluff. If the sun shines today watch for point releases from steep, rocky areas.
Fresh wind slabs will develop through the day on lee features from Strong-Extreme SW winds.
Thin slabs can be found in wind loaded areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and can be triggered by skiers or climbers.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers.&nbsp; Narrow gullies are where this is most concerning.
Thin slabs can be found in wind loaded areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and can be triggered by skiers or climbers.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
Another 10-15cm of new snow today; plus, the 30cm of recent storm snow and moderate winds, will form soft slabs in the Alpine and exposed areas of tree line. The slabs may be overlying weak faceted snow, old wind slabs, or a sun crust.
The recent snow is unlikely to bond well to crusts and facets, and should be a concern if considering riding steep faces or traveling in confined chutes; manage your sluff accordingly.
Fresh wind slabs will continue to grow throughout Monday night, lee to Strong SW winds. Expect these to be larger and more prevalent in the icefields, which is catching the brunt of the storm.
Skiier triggered Loose Dry avalanches increase in sensitivity Monday (steep sheltered areas), with new snowfall overlying loose facets.
New snow and strong SW winds are building slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
New snow and strong SW winds are building slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
25cm of new snow in the last 24 hours, plus the 30cm of recent storm snow, has formed soft slabs in the Alpine and exposed areas of Tree Line. Storm slabs may be overlying weak faceted snow, old wind slabs, or a sun crust.
If the sun makes an appearance today, steep solar aspects will shed the new snow. Skiers will likely be able to trigger loose dry slides, on steep unsupported terrain features on all aspects.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
Fresh windslabs sit on a variety of old surfaces, these will take several days to settle and stabilize.
45-50cm of new snow over the last week has become a cohesive soft slab in the Alpine and exposed areas of Tree Line. Storm slabs may be overlying weak faceted snow, old wind slabs, or a sun crust. The bond to these old surfaces is variable.
When the sun makes an appearance today, steep solar aspects will shed the new snow. Skiers will likely be able to trigger loose dry slides on steep unsupported terrain features from all aspects.
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
Fresh windslabs sit on a variety of old surfaces, these will take several days to settle and stabilize.
New snow and strong SW winds have built variable wind slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain.&nbsp; If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
al';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_6F88C6A0">If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain.  If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.</span><span class="s_AA239
45-50cm of new snow over the last week has become a cohesive soft slab in the Alpine and exposed areas at tree-line. Storm slabs may be overlying weak faceted snow, old wind slabs, or a sun crust. The bond to these old surfaces is variable.
Brief periods of intense sunshine are enough to trigger loose avalanches. This being said, northerly aspects are also prone to loose, dry avalanches with the new snow lying on facets.
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
Fresh windslabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
New snow and strong SW winds have built variable wind slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain. If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
span class="s_6F88C6A0">If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain. If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.
15-20cm of recent snow has formed windslabs. If the sun makes an appearance during the day, these will become easier to trigger.
There remains the possibility to be surprised by deep weak layers in thin snowpack areas. As temperatures rise these will become increasingly unpredictable.
Expect the blower pow that fell overnight to sluff easily and keep in mind that it's sitting on up to 50cm of snow from earlier this week that could also get moving with it! Natural avalanches are possible on solar aspects if the sun comes out.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep. The storm slab is bonding poorly in areas where sits on weak faceted snow or a sun crust. Strong SW winds will be adding to this slab and may trigger naturals
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
Natural triggering has abated but human triggering remains a possibility, particularly in steep north facing sheltered terrain.
New snow and strong SW-W winds have built wind slabs in open areas above treeline. In some cases, these slabs sit over the weak faceted snow and have been sensitive to triggering. In may cases, these slabs initiate a loose dry avalanche as well.
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
New snow and strong SW-W winds have built wind slabs in open areas above treeline. In some cases, these slabs sit over the weak faceted snow and have been sensitive to triggering. In may cases, these slabs initiate a loose dry avalanche as well.
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
Expect new snow to sluff easily and keep in mind that it's sitting on up to 50cm of snow from earlier this week that could also get moving with it! Natural avalanches are possible on solar aspects if the sun comes out.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust.
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
Strong SW-W winds have built wind slabs in open areas above treeline. In may cases, these slabs initiate a larger loose dry avalanche as they run. In a few examples these slides have gouged to the deep persistent layers near the base of the snowpack
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
While moist snow avalanches will start to become a problem themselves at lower elevations, as solar heating starts to take hold, consider a wider range of possible triggers to be available for the avalanche problems at upper elevations as well.
Strong SW-W winds have built wind slabs in open areas above treeline. In may cases, these slabs initiate a larger loose dry avalanche as they run. In a few examples these slides have gouged to the deep persistent layers near the base of the snowpack
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
While moist snow avalanches will start to become a problem themselves at lower elevations, as solar heating starts to take hold, consider a wider range of possible triggers to be available for the avalanche problems at upper elevations as well.
Dry/moist loose avalanches can be easily triggered in steep terrain and gather mass and momentum quickly. Natural and human triggered avalanches are likely on Southerly aspects when the solar radiation is strong.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust. Rising temperatures will put additional stress on this layer.
Watch out for any sunny, steep features. Expecting some recovery to the surface freeze, overnight Sunday. Progressively rising hazard over the day.
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust at light to moderate values from the SW.
Potential for triggering will increase significantly over the week as the temperatures seep into the snowpack. If triggered, it's expected to be very large, running full path.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures and sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures. This sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Loose avalanches are either running on hard bed surfaces, or entraining the faceted lower snowpack and running larger than normal.
Wind slabs formed on Thursday may still be reactive at higher elevations.
There remains a concern for deep weak layers in thin snowpack areas. Rapidly warming temperatures and solar radiation have the potential to wake them up.
Strong sunshine and rapidly increasing temp's will destabilize the upper snowpack, resulting in wet loose avalanches during the heat of the day. Aspects facing the sun should be avoided while they are baking in the sun.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust. Rising temperatures will put additional stress on this layer.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures and sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Loose avalanches are either running on hard bed surfaces, or entraining the faceted lower snowpack and running larger than normal.
Wind slabs formed on Thursday may still be reactive on shaded aspects at higher elevations.
There remains a concern for deep weak layers in thin snowpack areas. Rapidly warming temperatures and solar radiation have the potential to wake them up.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures and sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Progressively rising hazard over the day. Expect natural and human triggered loose wet avalanches on all sunny slopes, especially where steeper than 35 degrees. These are gouging to ground in thin areas.
As the upper snowpack becomes saturated with water, Wet Slabs are failing on solar aspects. In shallow areas, these are failing on the basal layers.
Strong sunshine and rapidly increasing temp's will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today; especially on solar aspects this afternoon.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust. Rising temperatures will put additional stress on this layer.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-20 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-20 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Progressively rising hazard over the day. Expect natural and human triggered loose wet avalanches on all sunny slopes, especially where steeper than 35 degrees. These are gouging to ground in thin areas.
As the upper snowpack becomes saturated with water, Wet Slabs are failing on solar aspects. In shallow areas, these are failing on the basal layers.
Strong sunshine and rapidly increasing temp's will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today, especially on solar aspects this afternoon.
At tree-line and above, a ~40cm soft slab is bonding poorly to the underlying sun crust, or to facets on shaded aspects. Warm temp's are peeling this slab off the mountains like a mandarin orange peel, very easily and in large pieces...
Progressively rising hazard over the day. Expect natural and human triggered loose wet avalanches on all sunny slopes, especially where steeper than 35 degrees. These are gouging to ground in thin areas.
As the upper snowpack becomes saturated with water, Wet Slabs are failing on solar aspects. In shallow areas, these are failing on the basal layers.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-50 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We have seen a few avalanches failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
10-50 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
We have seen a few avalanches failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Strong sunshine and rapidly increasing temps will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today, especially on solar aspects this afternoon.
At tree-line and above, a ~40cm soft slab is bonding poorly to the underlying sun crust, or to facets on shaded aspects. The prolonged warmth has helped the mtns shed much of the slab, so where it still exists, be wary of its unstable nature.
No recent overnight cooling to help recovery. An inversion, layered around 2200-2300m may keep BTL cool overnight but not TL or above. This will mean a constant wet loose hazard, and exposure to BTL run outs should be carefully considered and limited
The upper snowpack is saturated with water, creating Wet Slabs which are failing on solar aspects, sometimes to ground. In shallow areas, these are failing on the basal layers and can move fast on the dryer, weak, facetted snow below.
Wind slabs formed on Thursday may still be reactive on shaded aspects at higher elevations.
There remains a concern for deep weak layers in thin snowpack areas. Warm temperatures and solar radiation have the potential to wake them up.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
Strong sunshine and rapidly increasing temps will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today, especially on solar aspects this afternoon.
At tree-line and above, a ~40cm soft slab is bonding poorly to the underlying sun crust, or to facets on shaded aspects. The prolonged warmth has helped the mtns shed much of the slab, so where it still exists, be wary of its unstable nature.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
At tree-line and above, a 40cm soft slab has bonded poorly to the underlying facets. This problem is most likely to be found on Northerly aspects in the alpine.
The amount of loose wet avalanche activity is related to the amount of solar input .&nbsp; The effects of this will be slightly diminished on Sunday depending on cloud cover but watch locally for heating.&nbsp;
10-50 cm settled snow (since Mar 7) has formed slabs in the alpine which sit over a variety of weaker surfaces. The snowpack is still generally cold on high north aspects despite recent warm temperatures.
The amount of loose wet avalanche activity is related to the amount of solar input . The effects of this will be slightly diminished on Sunday depending on cloud cover but watch locally for heating.
10-50 cm settled snow (since Mar 7) has formed slabs in the alpine which sit over a variety of weaker surfaces. The snowpack is still generally cold on high north aspects despite recent warm temperatures.
A freezing level up to 2000m and a chance of strong solar input could rapidly destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day.
At tree-line and above, a 40cm soft slab has bonded poorly to the underlying facets. This problem is most likely to be found on Northerly aspects in the alpine.
There has been very little recent evidence of an avalanche on high North aspects, however the layer can still be found in isolated areas. It is likely that this problem will be removed after another day without supporting evidence.
There has been very little recent evidence of an avalanche on high North aspects, however the layer can still be found in isolated areas. It is likely that this problem will be removed after another day without supporting evidence.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">High freezing levels, warm temperatures, a chance of solar input, and or rain, will continue to destabilize the upper snowpack. The loose wet avalanche cycle continues on from last week, also a </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/IMG_8463.JPG" target="_blank"><span class="s_9255B882">large glide crack released in Mounds path </span></a><span class="s_AA239A9B">yesterday.
At tree-line and above, a 40cm soft slab has bonded poorly to the underlying facets. This problem is most likely to be found on Northerly aspects in the alpine.
Be mindful of the change in wind direction on tuesday night.
There remains a concern for deep weak layers in thin snowpack areas. Warm temperatures and solar radiation have the potential to wake them up.
On north aspects in the alpine a 40cm soft slab remains, and has bonded poorly to the underlying facets.
With reduced solar inputs and a cooling temperature trend forecasted this week, the loose wet problem will be less of a concern. Any unforseen increases in temps/solar or significant rain could quickly increase the likelihood of this problem.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
With reduced solar inputs and a cooling temperature trend forecasted this week, the loose wet problem will be less of a concern. Any unforseen increases in temps/solar or significant rain could quickly increase the likelihood of this problem.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Thin soft slabs were formed with the new snow and moderate SW winds yesterday. Expect to find reactive slabs in the immediate lee features above tree-line and along ridges. These slabs will likely be triggered by sun today if it pokes out.
Clear skies and warming temperatures will increase the avalanche activity on solar aspects. The recent snow will quickly degrade with any direct solar inputs causing sluffing and loose wet activity.
Clear skies and warming temperatures will increase the avalanche activity on solar aspects. The recent snow will quickly degrade with any direct solar inputs causing sluffing and loose wet activity.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
It will take a couple of days for the new snow to settle, triggering loose dry avalanches in steep shady alpine terrain remains possible.
Thin soft slabs were formed with the new snow and moderate SW winds Tuesday. These are found in the immediate lee features at tree-line and above, and are most reactive where they sit on an underlying crust.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
It will take a couple of days for the new snow to settle, triggering loose dry avalanches in steep shady alpine terrain remains possible.
Clearing skies and warming temperatures will increase the avalanche activity, especially on solar aspects in the afternoon. The recent snow will quickly loose cohesion with any direct solar inputs causing sluffing and loose wet avalanche activity.
Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
With the sun forecast to make more of an appearance on Friday and Saturday, the new snow sitting on the previous hard crust will become increasingly reactive.
There remains a concern for deep weak layers in thin north facing alpine features that were not as affected by the recent warm spell.
Clearing skies and warming temperatures will increase the avalanche activity, especially on solar aspects in the afternoon. The recent snow will quickly loose cohesion with any direct solar inputs causing sluffing and loose wet avalanche activity.
Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts cap </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> and the crust has been breaking down by mid afternoon on solar aspects. Use caution on steep slopes when crusts start to weaken, there is very little holding it together once the crust breaks down.
Thin soft slabs were formed with the new snow and moderate SW winds Tuesday. These are found in the immediate lee features at tree-line and above, and are most reactive where they sit on an underlying crust.
Depending where you are, avalanche activity may increase with an increase in solar activity.
Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
Depending where you are, avalanche activity may increase with an increase in solar activity.
Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
It will take a couple of days for the new snow to settle, triggering loose dry avalanches in steep shady alpine terrain remains possible.
Natural cycle of loose snow avalanches can be expected from steep solar slopes
Depending where you are, avalanche activity may increase with an increase in solar activity.
Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
Depending where you are, avalanche activity may increase with an increase in solar activity.
Weak buried facets are still present in many thin areas. On higher N aspects these have not necessarily been impacted much by the recent heat. This is not currently a big concern in most areas but something to keep in mind if entering bigger terrain.
Dry snow remains on alpine, north aspect slopes. We have not seen an avalanche on problem this for a while, but if anywhere could release a dry slab it would be here. Approach this terrain carefully.
Dry snow remains on alpine, north aspect slopes. We have not seen an avalanche on problem this for a while, but if anywhere could release a dry slab it would be here. Approach this terrain carefully.
New snow on Thursday falling on a hard melt freeze crust could become reactive with daytime warming
Dry snow remains on alpine, north aspect slopes. We have not seen an avalanche regarding this problem for a while, but if anywhere could release a dry slab it would be here. Approach this terrain carefully.
Dry snow remains on alpine, north aspect slopes. We have not seen an avalanche regarding this problem for a while, but if anywhere could release a dry slab it would be here. Approach this terrain carefully.
Dry snow remains on alpine, north aspect slopes. We have not seen an avalanche regarding this problem for a while, but continue to observe the weakness in snowpack assessments. Heads up - if anywhere could release a dry slab it would be here.
Likely a cooler day with forecasted cloud cover for Wed and crusts will likely remain intact for the day. Should the forecasted weather be inaccurate, monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Dry snow remains on alpine, north aspect slopes. We have not seen an avalanche regarding this problem for a while, but continue to observe the weakness in snowpack assessments. Heads up - if anywhere could release a dry slab it would be here.
Likely a cooler day with forecasted cloud cover for Wed and crusts will likely remain intact for the day. Should the forecasted weather be inaccurate, monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Dry snow remains on alpine, north aspect slopes. We have only seen a few isolated occurrences in steep, isolated features like moraines and glacier rolls over the past week,&nbsp; but continue to observe the weakness in snowpack assessments.
Likely a cooler day with forecasted cloud cover for Thursday and crusts will likely remain intact for the day. Monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Dry snow remains on alpine, north aspect slopes. We have only seen a few isolated occurrences in steep, isolated features like moraines and glacier rolls over the past week, but continue to observe the weakness in snowpack assessments.
Likely a cooler day with forecasted cloud cover for Thursday and crusts will likely remain intact for the day. Monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
10cm of new snow, accompanied by mod/strong S'ly winds, has created thin storm slabs in Alpine and Tree-line lee features. These slabs sit on a well-established melt-freeze crust and will likely be reactive to human triggering.
Dry snow remains on alpine, north aspect slopes. We have only seen a few isolated occurrences in steep, isolated features like moraines and glacier rolls over the past week, but continue to observe the weakness in snowpack assessments.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. Monitor changing conditions and avoid gully features later in the day where wet snow may run.
Winds increasing with recent 10-15cm of snow overlying previous crust are potentially forming thin windslabs on lee aspects at upper treeline and higher locations from Southerly winds.
Daytime warming, the strong spring sun, and rain will all increase the potential for loose wet avalanches to occur. Start and end your day early before surface crusts have a chance to break down.
Dry snow remains on alpine, north aspect slopes. We have only seen a few isolated occurrences in steep, isolated features like moraines and glacier rolls over the past week, but continue to observe the weakness in snowpack assessments.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. Monitor changing conditions and avoid gully features later in the day where wet snow may run.
10cm of recent snow accompanied by 25-40km/hr Southerly winds have created wind slabs in Alpine and Tree-line lee features. These slabs sit on a well-established melt-freeze crust and could be sensitive to human triggering.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
With up to 30cm of unconsolidated snow available for transport now, and new snow on the way, watch for rapid slab formation Saturday with strong SW-W winds in the forecast.
Westerly and Southwest winds are creating windslabs in high alpine ridgetop isolated terrain particularly on East to Northeast aspects. Watch for local wind influences where this condition could exist on other aspects as well.
15cm of recent snow and moderate Southerly winds have created wind slabs in ALP and TL lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. In N ALP a surface hoar layer may be preserved.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
Small, reactive windslabs already exist in immediate lees in the Alpine. With strong SW winds Saturday night, this problem may extend down to treeline on Sunday, especially along the Parkway where 5cm of new snowfall is expected overnight.
Natural avalanche activity, whumphing and test results indicate that small amounts of loading and sustained mild temperatures may be awakening a Persistent Weak Layer: facets buried 50cm down. This is more prevalent at the Columbia Icefields &amp; South.
15cm of recent snow and moderate Southerly winds have created wind slabs in alpine lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. A surface hoar layer may be buried ~20cm on Northerly alpine terrain.
A period of strong wind overnight on Saturday has created slabs in lee features in the alpine. Of note, evidence of these slabs was observed at the base of cones that are situated below couloirs. The windslabs were small in size (max size 1).
The new snow will react notably with localized solar input, so position yourself away from steep features while the sun is beating down. This is particularly relevant at higher elevation where recent snowfall amounts are greater. 
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
A period of strong wind overnight on Saturday has created slabs in lee features in the alpine. Of note, evidence of these slabs was observed at the base of cones that are situated below couloirs. The windslabs were small in size (max size 1).
The new snow will react notably with localized solar input, so position yourself away from steep features while the sun is beating down. This is particularly relevant at higher elevation where recent snowfall amounts are greater.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
Pockets of windslab continue to build in alpine lees. With moderate-strong SW winds Saturday night into Sunday, this problem may now extend down to treeline.
Natural avalanche activity, whumphing and test results indicate that a weak layer of facets buried 50cm down is persisting in some areas. This is more prevalent at the Columbia Icefields &amp; South.
15cm of recent snow and moderate Southerly winds have created wind slabs in alpine lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. A surface hoar layer may be buried ~20cm on Northerly alpine terrain.
A period of strong wind overnight on Saturday has created slabs in lee features in the alpine. Of note, evidence of these slabs were observed at the base of cones that are situated below couloirs. The windslabs were small in size (max size 1).
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
Daytime warming, the strong spring sun, and rain will all increase the potential for loose wet avalanches to occur.
A period of strong wind overnight on Saturday has created slabs in lee features in the alpine. Of note, evidence of these slabs were observed at the base of cones that are situated below couloirs. The windslabs were small in size (max size 1).
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. We have seen a few human triggered avalanches in steep, isolated features such as moraines and glacier rolls over the past week.
Pockets of windslab in immediate lees will be buried by incoming new snow, making them more difficult to manage.
A weak layer of facets buried 30-50cm down is persisting in some areas. This is more prevalent at the Columbia Icefields &amp; South.
20cm of recent snow and moderate Southerly winds have created wind slabs in alpine lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. A surface hoar layer may be buried ~20cm on Northerly alpine terrain.
While wind-slabs from the weekend appear to be settling out, fresh snow and steady moderate wind from the NW is expected overnight on Tuesday. Because of this, forecasters anticipate new wind-slab development on Weds.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. Recent snowpack tests have produced hard results on the March 7th layer. Little recent avalanche activity noted on this layer.
While wind-slabs from the weekend appear to be settling out, fresh snow and steady moderate wind from the NW is expected overnight on Tuesday. Because of this, forecasters anticipate new wind-slab development on Weds.
A hard slab sitting over weak facets up to 60cm down remains a concern where found: mainly on N aspects in the alpine. Recent snowpack tests have produced hard results on the March 7th layer. Little recent avalanche activity noted on this layer.
Pockets of windslab in immediate lees will be buried by incoming new snow, making them more difficult to manage.
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls.
20cm of recent snow and moderate Southerly winds have created wind slabs on specific terrain features in the alpine. These slabs overlie a melt-freeze crust on solar asp and or, surface hoar on polar asp. Wind slabs are sensitive to human triggering.
A weak melt-freeze crust is capping frail isothermal snow in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls.
This problem remains in our forecast due to the weak structure of the snowpack, but we have not seen it produce an avalanche for several weeks. Regardless, we suggest caution in high elevation shaded areas where the snowpack is unseasonably weak.
This problem remains in our forecast due to the weak structure of the snowpack, but we have not seen it produce an avalanche for several weeks. Regardless, we suggest caution in high elevation shaded areas where the snowpack is unseasonably weak.
A weak melt-freeze crust is capping frail isothermal snow in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
20cm of recent snow and moderate Southerly winds have created wind slabs on specific terrain features in the alpine. These slabs overlie a melt-freeze crust on solar asp and or, surface hoar on polar asp.
This problem remains in our forecast due to the weak structure of the snowpack, but we have not seen it produce an avalanche for several weeks. Regardless, we suggest caution in high elevation shaded areas where the snowpack is unseasonably weak.
This problem remains in our forecast due to the weak structure of the snowpack, but we have not seen it produce an avalanche for several weeks. Regardless, we suggest caution in high elevation shaded areas where the snowpack is unseasonably weak.
Strong winds and snowfall above treeline on Friday and Saturday will form new windslabs. These will become more reactive if the sun comes out.
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls.
Large Sluffs have been observed out of steep alpine terrain from the recent incremental snowfalls.
Up to 20cm of snow is forecasted for the Icefields region Thursday night and into Friday morning. (Very little snow is forecasted for the Maligne and Tonquin areas)
A melt-freeze crust is capping weak isothermal snow in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
20cm of recent snow and moderate Southerly winds have created wind slabs on specific terrain features in the alpine. These slabs overlie a melt-freeze crust on solar asp and or, surface hoar on polar asp.
The first indications that recent snow has started to form a new slab are being reported. With winds expected to increase to moderate late Friday and then strong mid day Saturday, expect rapid development of new slabs.
These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. It is wise to check in on this layer now found 40- 70cm deep before venturing into committing terrain.
The first indications that recent snow has started to form a new slab are being reported. With winds expected to increase to moderate late Friday and then strong mid day Saturday, expect rapid development of new slabs.
These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. It is wise to check in on this layer now found 40- 70cm deep before venturing into committing terrain.
Fresh snow and moderate winds could create windslabs in the alpine and at treeline.
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls.
Expect loose dry avalanches out of sheltered north alpine features.
Moderate S -W winds have redistributed last week's storm snow into pockets of windslab on alpine and treeline lee features. These slabs overlie  a melt freeze crust on solar aspects and given the right location, surface hoar on northerly aspects.
The first indications that recent snow has started to form a new slab are being reported. With winds expected to increase to moderate late Friday and then strong mid day Saturday, expect rapid development of new slabs.
These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. It is wise to check in on this layer now found 40- 70cm deep before venturing into committing terrain.
The first indications that recent snow has started to form a new slab are being reported. With winds expected to increase to moderate late Friday and then strong mid day Saturday, expect rapid development of new slabs.
These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. It is wise to check in on this layer now found 40- 70cm deep before venturing into committing terrain.
Fresh snow and moderate winds could create windslabs in the alpine
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls.
10cm + of storm snow along with moderate to strong S-SW winds are forming thin storm slabs on alpine and exposed treeline lee slopes. These slabs may be sensitive to human triggering.
Pockets of lingering persistent slab may be found under today's storm snow. These slabs overlie crusts on solar aspects and given the right location, surface hoar on alpine north aspects.
Fresh snow and moderate winds have built fresh pockets of windslab in the alpine.
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls.
Recent storm snow (20-50cm) has been redistributed by steady and moderate Westerly wind over the weekend. Some drifts in immediate lees are 100cm deep. Poor visibility has limited specific windslab observations as of Sun afternoon.
Recent storm snow has been producing loose dry avalanches from steep terrain. They are small in size and are not running particularly far.
These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. Additionally, there is uncertainty as to how this layer will react with the recent storm snow load.
Recent storm snow (20-50cm) has been redistributed by steady and moderate Westerly wind over the weekend. Some drifts in immediate lees are 100cm deep. Poor visibility has limited specific windslab observations as of Sun afternoon.
Recent storm snow has been producing loose dry avalanches from steep terrain. They are small in size and are not running particularly far.
These slabs remain a concern on north aspects in the alpine where March winds built slabs over the facetted snow from February's cold snap. Additionally, there is uncertainty as to how this layer will react with the recent storm snow load.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">30cm + of storm snow along with moderate to strong S-SW winds, formed storm slabs in the alpine and exposed areas of treeline. These slabs were easily triggered by skiers yesterday, </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/20190414%20Sr%20Video%20Peak.jpg" target="_blank"><span class="s_9255B882">initiating from 50m away.</span></a><span class="s_AA239
Recent storm snow (20-50cm) has been redistributed by steady and moderate Westerly wind over the weekend. Some drifts in immediate lees are 100cm deep. Use extra caution in areas where the wind slab sit over a crust.
Clear weather forecasted for Tuesday will increase the solar input on southerly aspects. This increased heating will likely shed the recent storm snow on steep solar aspects as the day warms up.
Recent snow may begin to slide on solar aspects as the sun makes an appearance and temperatures rise.
Deep layers are still responsive to large triggers (think cornices or rain) on high north faces. Though triggering this layer is unlikely, it's not impossible as evidenced by a recent large avalanche on Mt. Blackiston
Recent storm snow (20-50cm) has been redistributed by steady and moderate Westerly wind over the weekend. Some drifts in immediate lees are 100cm deep. Use extra caution in areas where the wind slab sit over a crust.
Clear weather forecasted for Tuesday will increase the solar input on southerly aspects. This increased heating will likely shed the recent storm snow on steep solar aspects as the day warms up.
These small events have been noted from steep alpine terrain where climbers may frequent.
Evidence from recent snowpack tests and whumphing would suggest that a weak layer of facets persists down 20-50cm in some areas, and may be becoming reactive with incremental loading from recent small snowfalls or forecasted snow in the week ahead.
On going convective snow flurries will produce sufficient snow to create isolated pockets of windslab. Significant snow events forecasted for late Thursday and Friday will reactivate these formations and create new storm slabs.
Last weekend's storm snow buried a weak surface hoar layer at treeline and below, and a crust on steep solar aspects into the alpine. Cold temps appear to have decreased slab properties in the upper snowpack, but this layer should not be discounted.
Sluffing can entrain enough volume to become a significant hazard to Climbers, especially in confined space and terrain traps
This problem mostly exists in the alpine with the exception of isolated, exposed treeline features.
Reports of hard wind slabs on Sunday in combination with warming temperatures, increasing wind and light precip on Monday has brought the windslab problem back. Wind slab development will likely be limited to the alpine in lee areas.
Reports of hard wind slabs on Sunday in combination with warming temperatures, increasing wind and light precip on Monday has brought the windslab problem back. Wind slab development will likely be limited to the alpine in lee areas.
Any terrain with a skiable snowpack will likely have Windslab. Our last storm was accompanied by NE winds. We have now returned to a typical SW flow. The combination of these two events has seen Windslab development on all aspects.
A weak layer is down 25-45cm. It consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine. Cold temps appear to have decreased slab properties in the upper snowpack, but this layer should not be discounted.
Windslab will continue to build over the next 48 hours in all open areas with moderate to strong west/north-west winds. Ice Climbers should be especially observant to wind loading patterns when choosing a venue for the day.
A combination of warm temperatures, increased winds and light precipitation has brought the wind slab problem back. Wind slab development will likely be limited to the alpine in lee areas.
A combination of warm temperatures, increased winds and light precipitation has brought the wind slab problem back. Wind slab development will likely be limited to the alpine in lee areas.
30cm + of new snow in the last 24 hours, and another 15cm of forecasted snow will form storm slabs in the Alpine and at Treeline. Winds are forecasted to increase this afternoon, which should spike today's avalanche cycle!
The new snow will struggle to bond to the old surface layers and sluff easily in steep terrain. Loose dry avalanches can gain mass and potentially trigger storm slabs and or persistent slabs.
Building storm slab with new precipitation and wind through the region.
New wind slab will continue to build over the next 12 hours in all open areas with moderate to strong west/south-west winds. Ice Climbers should be especially observant to wind loading patterns when choosing a venue for the day.
10-20 cm of recent storm snow accompanied by strong SW winds will have created fresh wind slabs in alpine and tree-line regions.
10-20 cm of recent storm snow accompanied by strong SW winds will have created fresh wind slabs in alpine and tree-line regions.
Approximately 50cm + of new snow in the last 36 hours, warm temperatures and strong winds formed storm slabs on all aspects and elevations. Loose dry avalanches are also problematic with this much new snow!
20-30 cm of recent storm snow accompanied by strong SW winds have created widespread wind slabs in alpine and tree-line regions. Slabs of 50cm thick have been reactive to skier traffic.
20-30 cm of recent storm snow accompanied by strong SW winds have created widespread wind slabs in alpine and tree-line regions. Slabs of 50cm thick have been reactive to skier traffic.
New soft windslabs have formed in the lee areas from the storm that just pushed through. The distribution at treeline is more isolated.
70cm of new storm snow has created reactive avalanche conditions on all aspects and elevations. Strong winds during the storm created pockets of heavy loading and slabs on lee features in the alpine.
Storm slabs have the potential to step down to a buried weak layer (Nov 23 Surface Hoar/ Crust) now down 60-80cm. It consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
Avalanche hazard may be higher than forecast if snowfall amounts on Saturday exceed 15cm.
New soft windslabs have formed in the lee areas from the storm that just pushed through. The distribution at treeline is more isolated.
20-30cm of recent storm snow accompanied by strong SW winds have created wind slabs in alpine features and some treeline ridgetops. Expect an increase in the size and reactivity of these as we receive more snow and wind over the next couple of days.
If we receive the forecast snow and wind in addition to the 20-30cm we have received already, expect sloughing to be a concern in the short term.
20-30cm of recent storm snow accompanied by strong SW winds have created wind slabs in alpine features and some treeline ridgetops. Expect an increase in the size and reactivity of these as we receive more snow and wind over the next couple of days.
If we receive the forecast snow and wind in addition to the 20-30cm we have received already, expect sloughing to be a concern in the short term.
20cm of new snow is expected to form into a reactive storm slab as the day progresses. The new snow sits atop a previous storm slab from December 3rd that is still poorly bonded. The new snow may trigger this buried layer.
Storm slabs have the potential to step down to a buried weak layer (Nov 23 Surface Hoar/ Crust) now down +100cm. It consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
40-50cm of recent storm snow accompanied by strong SW winds have formed storm slab. Expect an increase in the size and reactivity of these as we receive more snow and wind over the next 24 hours.
40-50cm of new snow has fallen, sloughing is a concern in steep terrain and gully features
The snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to deeper layers.
40-50cm of recent storm snow accompanied by strong SW winds have formed storm slab. Expect an increase in the size and reactivity of these as we receive more snow and wind over the next 24 hours.
40-50cm of new snow has fallen, sloughing is a concern in steep terrain and gully features.
The snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to deeper layers.
New soft windslabs have formed in the lee areas from the storm that just pushed through. The distribution at treeline is more isolated.
30cm of storm snow has formed a storm slab. The new snow sits atop a previous storm slab that is still poorly bonded to faceted snow and Dec 5th surface hoar layer.
Storm slabs have the potential to step down to a buried weak layer (Nov 23 Surface Hoar/ Crust) now down +100cm. It consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
Up to 40 cm of unconsolidated new snow could cause significant sluffing in entrained ice climbing features.
New soft windslabs have formed in the lee areas. The distribution at treeline is more isolated.
30-50 cm of recent snow accompanied by strong SW winds have formed a storm slab in many open areas at treeline and in the alpine. Human triggering of this slab will remain likely on Sunday though natural avalanche activity will slow down.
In many places the snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to these deeper layers resulting in larger avalanches.
30-50 cm of recent snow accompanied by strong SW winds have formed a storm slab in many open areas at treeline and in the alpine. Human triggering of this slab will remain likely on Sunday though natural avalanche activity will slow down.
The snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to these deeper layers resulting in larger avalanches.
40cm of recent storm snow has formed a slab. The new snow sits over Surface Hoar in some locations.
Storm slabs have the potential to step down to a buried weak layer (Nov 23 Surface Hoar/ Crust) now down 80-100+cm. It consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
40-60 cm of recent snow and wind have formed a storm slab in many open areas at treeline and in the alpine. Human triggering of this slab will remain likely though natural avalanche activity will slow down.
As of today, large avalanches were reported as initiating on the Nov crust/facet layer and stepping down and gouging to near ground. Some were triggered with large loads (explosives) and one was triggered by a snowboarder on an adventure.
Increasing westerly winds will continue to build slabs at treeline and in the alpine. Though natural activity will taper off as the week progresses, these are expected to be reactive to skier traffic.
40-60 cm of recent snow and wind have formed a storm slab in many open areas at treeline and in the alpine. Human triggering of this slab will remain likely though natural avalanche activity will slow down.
As of today, large avalanches were reported as initiating on the Nov crust/facet layer and stepping down and gouging to near ground. Some were triggered with large loads (explosives) and one was triggered by a snowboarder on an adventure.
Wind slabs are forming on lee slopes and cross loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this
The November 23rd layer is down 80-100+cm and consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
Recent periods of moderate wind have potentially built wind slabs in immediate lees.&nbsp; Keep an eye out for these as you transition into exposed alpine terrain.
Increasing westerly winds will continue to build slabs in lee areas at treeline and in the alpine.
A combination of melt freeze crusts and facets from early season snowfalls is lurking at the bottom of the snowpack. These layers are unlikely to be triggered by people but smaller avalanches in the recent storm snow have been stepping down.
Wind slabs are present on lee slopes and cross-loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
Recent snow and wind have formed a storm slab in many open areas at treeline and in the alpine. Human triggering of this slab remains possible or even likely in some terrain, though natural avalanche activity has slowed down.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days. Human triggering in steep terrain remains a real concern.
Recent snow and wind have formed a storm slab in many open areas at treeline and in the alpine. Human triggering of this slab remains possible or even likely in some terrain, though natural avalanche activity has slowed down.
The recent snow sits over weak facet and crust layers in many places. Human triggering in steep terrain remains a real concern, especially in thinner snowpack areas. This problem will be less of a concern in thicker snowpack areas.
The November 23rd layer is down 80-100+cm and consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
Recent periods of moderate wind have potentially built wind slabs in immediate lees. Keep an eye out for these as you transition into exposed alpine terrain.
Wind slabs are present on lee slopes and cross-loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
Recent snow and wind have formed reactive wind in many open areas at treeline and in the alpine. Human triggering of this slab remains possible or even likely in some terrain, though natural avalanche activity has slowed down. 
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days. Human triggering in steep terrain remains a real concern.
Recent snow and wind have formed reactive wind in many open areas at treeline and in the alpine. Human triggering of this slab remains possible or even likely in some terrain, though natural avalanche activity has slowed down.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days. Human triggering in steep terrain remains a real concern.
The November 23rd layer is down 80-100+cm and consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
Recent periods of moderate wind have potentially built wind slabs in immediate lees. Keep an eye out for these as you transition into exposed alpine terrain.
Recent snow and wind have formed reactive wind in many open areas at alpine elevations. Human triggering of this slab remains possible or even likely in some terrain, though natural avalanche activity has slowed down.
The recent snow sits over weak facet and crust layers in some areas of the forecast region.&nbsp; Human triggering in steep terrain remains a concern.
Recent snow and wind have formed wind slab in many open areas at treeline and in the alpine. Human triggering of this slab remains possible or even likely in some terrain, though natural avalanche activity has slowed down.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days.
The November 23rd layer consists of surface hoar at and below treeline and a crust on steep solar aspects into the alpine. This layer can be found down 80-100cm.
Recent S-SW winds have formed windslab in the immediate lee of alpine terrain features. Light overnight storm snow will have obscured these slabs.
Strong to extreme winds have stripped fetches in the alpine, and new wind slabs exist at treeline and above. These will begin to settle as the weekend progresses.
Melt freeze crusts and facets from early season snowfalls are lurking at the bottom of the snowpack. Windslabs have been stepping down to this layer, and it may be possible for a person to trigger an avalanche in the right (wrong?) spot.
Strong alpine winds in the last 24 hours have increased wind slab thickness and likely their reactivity in many open areas in the alpine and some treeline features. Watch locally for their development as it has not been windy everywhere.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Strong alpine winds in the last 24 hours have increased wind slab thickness and likely their reactivity in many open areas in the alpine and some treeline features. Watch locally for their development as it has not been windy everywhere.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Wind slabs are present on lee slopes and cross-loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
Wind slabs are present on lee slopes and cross-loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance. Solar input has the potential to trigger this problem.
The November 23rd layer consists of surface hoar at and below treeline and a crust on steep solar aspects into the alpine. This layer can be found down +/-100cm.
Recent S-SW winds have formed windslab in the immediate lee of alpine terrain features. The last 24hrs storm snow will have obscured these slabs.
The widespread Dec 11 surface hoar is now buried down 10cm+. Surface snow will be prone to sluffing fast and far on this layer. This may be an issue in gully or terrain trap features.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Variable wind slab development over the last couple of days mainly in the alpine but also in some wind exposed treeline features. These are losing sensitivity to human triggering but will need a few days to settle out completely.
The recent snow sits over weak facet and crust layers. Where they exist it will be hard to predict what it will take to cause an avalanche. The Takakkaw Falls area is the only place so far where these haven't been found due to a deeper snowpack.
Variable wind slab development over the last couple of days mainly in the alpine but also in some wind exposed treeline features. These are losing sensitivity to human triggering but will need a few days to settle out completely.
Wind slabs are present on lee slopes and cross-loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance. Solar input has the potential to trigger this problem.
The November 23rd layer consists of surface hoar at and below treeline and a crust on steep solar aspects into the alpine. This layer can be found down +/-100cm.
The widespread Dec 11 surface hoar is now buried down 10cm+. Surface snow will be prone to sluffing fast and far on this layer. This may be an issue in gully or terrain trap features.
Up to 15cm of new snow since Dec 11th with light to very light southerly wind.  Expect touchy pockets of storm slab in wind exposed features.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Variable wind slab development from two days ago persists, mainly in the alpine but also in some wind exposed treeline features. These are losing sensitivity to human triggering but will need a few days to settle out completely.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Variable wind slab development from two days ago persists, mainly in the alpine but also in some wind exposed treeline features. These are losing sensitivity to human triggering but will need a few days to settle out completely.
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance. Solar input has the potential to trigger this problem.
Previous wind slabs may be sitting over a basal weakness
Up to 20 cm of new snow since Dec 11th with light to very light southerly wind. Expect touchy pockets of storm slab in wind exposed features.
Surface snow will be prone to sluffing.
A few large avalanches were observed during last cycle early in December and we suspect it was on this layer.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Variable wind slab development can be found mainly in the alpine but also in some wind exposed treeline features. These are losing sensitivity to human triggering but will need a few days to settle out completely.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Variable wind slab development is present mainly in the alpine but also in some wind exposed treeline features. These are losing sensitivity to human triggering but will need a few days to settle out completely.
Up to 20 cm of new snow since Dec 11th with light to moderate southerly wind. Expect reactive pockets of storm slab in wind exposed features.
Surface snow will be prone to sluffing, especially on steep, unsupported aspects.
Overnight wind transport has created thin wind slabs predominantly on East aspects directly below ridge top. Pay attention to wind values and new snow amounts that contribute to this problem over the next 24 hours.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Strong SW winds have likely created wind slab in NW to SE lee aspects. Sensitivity expected to be reactive in the immediate future and might be enough to wake deep, weaker interfaces.
A few large avalanches were observed during last cycle early in December and we suspect it was on this layer.
Overnight wind transport has created thin wind slabs predominantly on East aspects directly below ridge top. Pay attention to wind values and new snow amounts that contribute to this problem over the next 24 hours.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Strong to extreme winds have stripped fetches in the alpine, leaving very little snow available for transport. Newer wind slabs exist at treeline and below, especially in burnt areas.
Melt freeze crusts and facets from early season snowfalls are lurking at the bottom of the snowpack. Test results and previous avalanches lead us to believe human triggering of this layer is unlikely, but not out of the question.
Up to 40 cm of new snow since Dec 11th with increasing SW winds. Expect a reactive storm slab in wind exposed features.
Surface snow will be prone to sluffing, especially on steep, unsupported aspects. Sluffs are running fast and far, picking up more snow as it flows down gullies.
Strong SW winds are creating wind slabs in NW to SE lee aspects. Sensitivity expected to be reactive in the immediate future and might be enough to wake deep, weaker interfaces.
A few large avalanches were observed during last cycle early in December and we suspect it was on this layer. Triggering the windslab problem has potential to release this lower problem layer.
Strong wind values Tuesday have created thin wind slabs predominantly on East aspects directly below ridge top. Expect the new load to be reactive to light loads for the near future.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Sustained strong winds Tuesday have formed new wind slabs at alpine and tree line elevations. The distribution of the new load is uncertain. Where it is present you can expect the new load to be reactive in the short term.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Storm slabs are primed for human-triggering on steep unsupported terrain features. Storm slabs overlie the Dec 11th surface hoar layer, which can be found 50-60cm below the surface.
Surface snow will be prone to sluffing, especially on steep, unsupported terrain features. Sluffs are running fast and far, picking up more snow as it flows down gullies.
48 hrs of moderate to strong&nbsp; winds have formed new wind slabs at alpine and tree line elevations. The distribution of the new load is uncertain. Where it is present you can expect the new load to be reactive in the short term.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Strong SW winds are creating wind slabs in NW to SE lee aspects. Sensitivity expected to be reactive in the immediate future and may wake deeper, weaker interfaces.
A few large avalanches were observed during last cycle early in December and we suspect it was on this layer. Triggering the windslab problem has potential to release this lower problem layer.
Strong wind values Tuesday have created thin wind slabs predominantly on East aspects directly below ridge top. Expect the new load to be reactive to light loads for the near future.
The recent snow sits over weak facet and crust layers. As time goes on the chance of triggering is becoming less likely, but there is lots of uncertainty as to where you could trigger an avalanche and what it will take to get it moving.
Storm slabs are primed for human-triggering on steep unsupported terrain features. Storm slabs may step down to the Dec 11th surface hoar layer, which can be found 60-70cm below the surface.
70cm+ of storm snow covers the widespread Dec 11th Surface Hoar(SH), size 5-12mm. This sliding layer is expected to wake up tomorrow naturally, but is still probable for human triggering today.
As the storm intensifies on Friday, expect the incoming snow and strong South West winds to build touchy wind slabs on lee aspects in the alpine and exposed areas at tree line.
As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
The incoming storm snow will stress the weak, faceted snowpack. Lots of uncertainty surrounds this layer, but if triggered it could result in a large avalanche.
1681A555">As the storm intensifies on Friday, expect the incoming snow and strong South West winds to build touchy wind slabs on lee aspects in the alpine and exposed areas at tree line.
1681A555">As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
1681A555">The incoming storm snow will stress the weak, faceted snowpack. Lots of uncertainty surrounds this layer, but if triggered it could result in a large avalanche.
The incoming storm will bring heavy snowfall accompanied by 140km/h+ southwest winds and rain at lower elevations. Avalanche activity will peak on Friday and Saturday.
Melt freeze crusts and facets from early season snowfalls are lurking at the bottom of the snowpack. This layer may come alive again with loading form the incoming storm.
Strong SW winds are creating wind slabs in NW to SE lee aspects. Sensitivity expected to be reactive in the immediate future and may wake deeper, weaker interfaces.
A few large avalanches were observed during last cycle early in December and we suspect it was on this layer. Triggering the windslab problem has potential to release this lower problem layer.
As new snow accumulates, the hazard will increase.
A touchy storm slab formed Dec 19 over a Stellar layer down 30cm. This layer is expected to be widespread and sensitive to human triggering.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 80cm+. This sliding layer is expected to wake up tomorrow naturally when storm slab releases overload it. This will result in large avalanches likely running to valley bottom.
The Nov 15 melt freeze crust is down deep in the snowpack. This layer may reach threshold for overload from avalanches triggered in upper snowpack layers. The resulting avalanches will be large.
A touchy storm slab is forming and will become more sensitive to human triggering as the storm continues on Saturday.
As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
The weak, faceted mid and lower pack is being stressed by the new storm snow and might be reaching threshold. Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.
A touchy storm slab is forming and will become more sensitive to human triggering as the storm continues on Saturday.
As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
The weak, faceted mid and lower snowpack is being stressed by the new storm snow and might be reaching threshold. Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.
The atmospheric river continues to bring heavy snowfall accompanied by 120km/h southwest winds and rain below 1700m. Snowfall amounts are uncertain on Saturday, but winds will be strong and freezing levels will remain high.
Melt freeze crusts and facets from early season snowfalls are lurking at the bottom of the snowpack. This layer may come alive again with loading form the incoming storm.
As new snow accumulates, Expect the hazard to increase.
Continued S-SW winds are creating wind slabs in NW to SE lee aspects. Sensitivity expected to be reactive in the immediate future and may wake deeper, weaker interfaces.
Triggering the windslab problem has potential to step down to this layer.
Warming temperatures are aiding in the formation of a touchy storm slab. This layer is expected to be widespread and sensitive to human triggering.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 100cm+. This sliding layer was reactive in our control yesterday when overloaded by storm slab release. Large avalanches will be running to valley bottom.
The Nov 15 melt freeze crust is down deep in the snowpack. This layer may reach threshold for overload from avalanches triggered in upper snowpack layers. The resulting avalanches will be large.
Storm slabs will be everywhere and will remain reactive while the snowpack adjusts to the new load.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations.&nbsp; Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.&nbsp;
In the short term this will be a problem, especially in gully features and off of sidewalls.
Storm slabs will be everywhere and will remain reactive while the snowpack adjusts to the new load.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.
In the short term this will be a problem, especially in gully features and off of sidewalls.
Up to 100cms of new snow has fallen in the last 48 hours. Expect many soft slab avalanches on all aspects and elevations up to size 3 Sunday
A significant amount of snow has accumulated on steep features
Dry loose and storm slab avalanches may step down to weak layers close to the ground producing large avalanches
Continued snowfall accompanied by 120km/h southwest winds has formed touchy slabs
Recent Rain, snow and warm temperatures has begun to overload melt freeze crusts and facets from early season snowfalls causing large avalanches.
Solar input today could initiate another large natural avalanche cycle! Storm slabs are expected to be widespread and sensitive to human triggering.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 90cm+. This sliding layer was reactive in our control yesterday. Large avalanches will reach valley bottom.
The Nov 23 melt freeze crust is down deep in the snowpack. This layer may reach threshold for overload from avalanches triggered in upper snowpack layers or a large cornice release. The resulting avalanches will be very large.
Expect many soft slab avalanches on all aspects and elevations up to size 3 Sunday
Steep features
Dry loose and storm slab avalanches may step down to weak layers close to the ground producing large avalanches
Storm slabs continue to be reactive Sunday. Were seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposer to any large overheads hazard.
In the short term this will be a problem, especially in gully features and off of sidewalls.
Storm slabs continue to be reactive Sunday. Were seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposer to any large overheads hazard.
In the short term this will be a problem, especially in gully features and off of sidewalls.
Storm slabs are expected to be widespread and sensitive to human triggering, especially in areas where avalanches have not yet occurred after this weekend's storm.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 90cm+. This sliding layer was reactive in our artillery control over the weekend. Large avalanches will reach valley bottom.
Storm slabs continue to be reactive Monday. We are seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposure to any large overhead hazard.
Surprising little avalanche activity on this layer. Uncertainty related to how sensitive this problem will be to human triggers
A significant amount of snow has accumulated on steep features
Wind slabs will be thicker and more reactive the higher you go. Snow amounts change dramatically above 1800m.
As natural activity on this layer begins to slow down, it is tempting to believe the problem has passed. This layer could still be triggered in thin areas, or by large triggers including cornices or smaller avalanches.
Storm slabs continue to be reactive Monday. We are seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposure to any large overhead hazard.
We're 2 days out from the last lashing of the storm and the storm snow remains reactive. Slab formation has been kept at bay by cold temperatures and light winds, but this snow can be triggered on convexities, cross loaded slopes and near ridgelines.
The Dec 11th Surface Hoar(SH), size 5-12mm is down approximately 1m. Try to find this layer in your snow profile today; it is very recognizable. Most of the large natural avalanches that are currently visible in the backcountry slid on this layer.
As natural activity on this layer begins to slow down, it is tempting to believe the problem has passed. This layer could still be triggered by people in thinner snowpack areas, or by large triggers including cornices or smaller avalanches.
Wind slabs will be thicker and more reactive the higher you go. Snow amounts change dramatically above 1800m.
Surprising little avalanche activity on this layer.
A significant amount of snow has accumulated on all features
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
Last weekend's storm saw huge avalanches running on the December 11th surface hoar. As the storm snow morphs into slabs, this layer gets re-primed. A 100cm slab atop well-preserved large surface hoar is a recipe for HUMAN TRIGGERED avalanches.
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
New snow has stuck to and accumulated on all features, heavy sluffing remains a problem for both riders and climbers
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
We are entering a period of lower probability of triggering a slab, but a high consequence if you do. A 100cm slab sits on well-preserved, large surface hoar. This is a recipe for HUMAN-TRIGGERED avalanches.
The first bit of wind after the storm on Dec 21, fresh wind slabs were noted building today
New snow has stuck to and accumulated on all features, caution in terrain traps while approaching climbing routes.
With 30-60cm of storm snow available for transport accompanied by the moderate to strong SW winds, expect fresh wind slab formation in the alpine and exposed areas at tree line.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche.
With 30-60cm of storm snow available for transport accompanied by the moderate to strong SW winds, expect fresh wind slab formation in the alpine and exposed areas at tree line.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche.
We are entering a period of lower probability of triggering a slab, but a high consequence if you do. A 100cm slab sits on well-preserved, large surface hoar. This is a recipe for HUMAN-TRIGGERED avalanches.
As natural activity on this layer begins to slow down, it is tempting to believe the problem has passed. This layer could still be triggered by people in thinner snowpack areas, or by large triggers including cornices or smaller avalanches.
Wind slabs will be thicker and more reactive the higher you go. Snow amounts increase dramatically above 1800m.
The first bit of wind after the storm on Dec 21, fresh wind slabs were noted building today
Caution Ice climbers in confined features with steep walls holding dry loose snow
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphing on the basal layer continue.
With 30-60cm of storm snow available for transport accompanied by the moderate to strong SW winds, expect fresh wind slab formation in the alpine and exposed areas at tree line.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphing on the basal layer continue.
With 30-60cm of storm snow available for transport accompanied by the moderate to strong SW winds, expect fresh wind slab formation in the alpine and exposed areas at tree line.
15cm of low density new snow and moderate S-SW winds have formed slabs in alpine lees.
The surface hoar layer down a meter is well preserved in some areas. If triggered this will result in a large avalanche. This consequences are high if this low probability problem is encountered.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphfing on the basal layer continue as recent as Friday.
Wind effect is evident in the alpine along the divide with areas such as the Wapta looking hammered . While much of treeline seems to have been spared, it would be wise to expect to find slabs in more exposed areas there too.
SW moderate winds continue to develop windslab on lee slopes.
Whumphing observed on this weakness observed below treeline.  Large loads may trigger it.
Caution Ice climbers in confined features with steep walls holding dry loose snow
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphfing on the basal layer continue as recent as Friday.
Wind effect is evident in the alpine along the divide with areas such as the Wapta looking hammered . While much of treeline seems to have been spared, it would be wise to expect to find slabs in more exposed areas there too.
15cm of recent snow with moderate S-SW winds have formed slabs in alpine lees. Be alert for cross-loaded features and terrain traps.
The surface hoar layer down a meter is well preserved in some areas and human triggering remains possible. Due to the depth of this layer the resulting avalanche would be large.
Most fetch zones are stripped and snow has been redistributed to lee slopes and cross-loaded gulleys.  Triggering is likely from shallow spots. Once triggered, the avalanche could awaken weaknesses at the base of the pack creating large avalanches.
Whumphing was observed on this weakness below treeline.  This weakness could be triggered by large loads or from thin spots in the snowpack.
The weak, faceted lower snowpack was heavily loaded by the storm before Christmas . Triggering the deep facets would result in a very large avalanche. Continued reports of whumphfing on these basal layers indicate the potential for human triggering.
Wind effect is evident in the alpine as a result of winds over the previous 3-4 days. Be wary of the potential to trigger even a small slab given the possibility of triggering the deeper weakness as an avalanche starts to increase the load on a slope
The weak, faceted lower snowpack was heavily loaded by the storm before Christmas . Triggering the deep facets would result in a very large avalanche. Continued reports of whumphfing on these basal layers indicate the potential for human triggering.
Wind effect is evident in the alpine as a result of winds over the previous 3-4 days.Be wary of the potential to trigger even a small slab given the possibility of triggering the deeper weakness as an avalanche starts to increase the load on a slope
The windslabs formed last week have not been reactive to skier traffic recently, but increasing winds this afternoon may build fresh windslabs. 
The surface hoar layer down a meter is well preserved in some areas and human triggering remains possible. Due to the depth of this layer the resulting avalanche would be large.
The November facet/ melt freeze crust combo still lurks near the base of the snowpack. This layer could still be triggered by people in thinner snowpack areas, or by large triggers including cornices or smaller avalanches.
Wind slabs will be thicker and more reactive the higher you go.
Moderate to strong winds and new snow over the next couple days will build wind slabs in lee areas at treeline and above. These will be easy to trigger so avoid lee loaded areas and minimize your time in areas with wind loading going on above you.
Continued reports of whumphfing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Moderate to strong winds and new snow over the next couple days will build wind slabs in lee areas at treeline and above. These will be easy to trigger so avoid lee loaded areas and minimize your time in areas with wind loading going on above you.
Continued reports of whumphfing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Storm slabs will become touchy this afternoon as the storm deposits 30cm today. The new snow will be accompanied by moderate to strong wind and rising temperatures. Natural activity will peak this afternoon!
The surface hoar layer down a meter is well preserved in some areas and human triggering remains possible. Due to the depth of this layer the resulting avalanche would be large.
Most fetch zones are stripped and snow has been redistributed to lee slopes and cross-loaded gulleys. If triggered, the avalanche could awaken weaknesses at the base of the pack creating large avalanches.
This weakness could be triggered by large loads or from thin spots in the snowpack.&nbsp; This problem seems more pronounced at treeline where whumphing and cracks have been observed.
Moderate to strong winds and new snow over the next couple days will build wind slabs in lee areas at treeline and above. These will be easy to trigger so avoid lee loaded areas and minimize your time in areas with wind loading going on above you.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Fresh Windslabs reactive to ski cuts at ridge top today at cameron lakes. Warming temperatures wednesday will make Windslabs easier to trigger
The November facet/ melt freeze crust combo still lurks near the base of the snowpack. This layer could still be triggered by people in thinner snowpack areas, or by large triggers including cornices or smaller avalanches.
Moderate to strong winds and new snow over the next couple days will build wind slabs in lee areas at treeline and above. These will be easy to trigger so avoid lee loaded areas and minimize your time in areas with wind loading going on above you.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
As the new snow forms a cohesive slab on top of the Dec 27th surface hoar, expect to see reactive slabs pulling back onto lower angled terrain.&nbsp;
The surface hoar layer down a meter is still preserved in some areas and human triggering remains possible. Due to the depth of this layer, the resulting avalanche would be large.
5 to 10cm of new snow and light to moderate NW wind has created soft windslabs in lee areas in the alpine. While they are reactive to ski cutting, they are thin and do not run far. Underlying hard windslabs from a previous wind event also linger.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
5 to 10cm of new snow and light to moderate NW wind has created soft windslabs in lee areas in the alpine. While they are reactive to ski cutting, they are thin and do not run far. Underlying hard windslabs from a previous wind event also linger.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Most fetch zones are stripped and snow has been redistributed to lee slopes and cross-loaded gulleys. If triggered, the avalanche could awaken weaknesses at the base of the pack creating large avalanches.
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem seems more pronounced at treeline where whumphing and cracks have been observed.
At Treeline we have received 50cm+ of storm snow in the last 36 hours! Winds increased in the overnight period to strong out of the south, but temperatures are cooling. Natural activity has decreased, but human triggering remains likely.
Storm slabs have the potential to step down to our Persistent Weak Layer problems (December 11th and 27th Surface Hoar). The 27th is buried by our most recent storm snow and the Dec 11th layer is now buried well over a meter.
An avalanche initiated in this storm snow may step down and test our deeper weak layers
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem seems more pronounced at treeline where whumphing and cracks have been observed.
Warm temperatures Friday and Saturday will make Windslabs easier to trigger. BTL rating on Saturday reflects potential for avalanches to run full path.
The November facet/ melt freeze crust combo still lurks near the base of the snowpack. This layer could still be triggered by people in thinner snowpack areas, or by large triggers including cornices or smaller avalanches.
20-50 deep reactive wind slabs propagating 15-30 m wide. Heightened caution at treeline where new snow will load buried surface hoar in sheltered locations or sun crust on steep solar.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
A problem primarily in steep gully features due to the ongoing wind and new snow forecasted. Ice climbers consider the overhead hazard and the possibility of windslabs being triggered by loose dry.
20-50 deep reactive wind slabs propagating 15-30 m wide. Heightened caution at treeline where new snow will load buried surface hoar in sheltered locations or sun crust on steep solar.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
A problem primarily in steep gully features due to the ongoing wind and new snow forecasted. Ice climbers consider the overhead hazard and the possibility of windslabs being triggered by loose dry.
60cm of storm snow this week have created slabs on all aspects. Rising temperatures today will increase reactivity. Strong SW winds will make for deeper slabs in alpine and treeline lees. Large paths have the potential to run below treeline.
Storm slabs have the potential to step down to the December 27th or 11th surface hoar. The 27th is down 60cm and the Dec 11th layer is now buried well over a meter.
The 20-40cm of storm snow is being redistributed by the strong Westerly winds and settling into a storm slab. Heightened caution at treeline where new snow has buried surface hoar in sheltered locations or sun crust on steep solar.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
A problem primarily in steep gully features due to the ongoing wind and new snow forecasted. Ice climbers consider the overhead hazard and the possibility of windslabs being triggered by loose dry.
The 20-40cm of storm snow is being redistributed by the strong Westerly winds and settling into a storm slab. Heightened caution at tree line where new snow has buried surface hoar in sheltered locations or sun crust on steep solar.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
A problem primarily in steep gully features due to the ongoing wind and new snow forecasted. Ice climbers consider the overhead hazard and the possibility of storm slabs being triggered by loose dry.
This storm has come in with strong to extreme winds from the southwest.
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem seems more pronounced at treeline where whumphing and cracks have been observed.
60cm of storm snow this week have created slabs on all aspects. Rising temperatures and strong SW winds will make for deeper slabs in alpine and treeline lees. Large paths have the potential to run below treeline.
Storm slabs have the potential to step down to the December 27th or 11th surface hoar. The 27th is down 60cm and the Dec 11th layer is now buried well over a meter.
This storm has come in with strong to extreme winds from the southwest. Moderate winds continue on Saturday.
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem is more pronounced at treeline where whumphing and cracks have been observed.
The zone has received up to 40-50cm. Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
The 20-40cm of storm snow has been accompanied by strong Westerly winds. Thick slabs in the lees of alpine and treeline features are likely forming due to the winds, and lower down the snow is settling into a slab.
Lots of uncertainty surrounding this layer and what will trigger it with all of the new inputs of snow, wind and warm temperatures. Triggering the deep facets could result in a large avalanche.
While the wind stays elevated loose dry avalanches will be a problem in gully features.
The 20-40cm of storm snow has been accompanied by strong Westerly winds. Thick slabs in the lees of alpine and treeline features are likely forming due to the winds, and lower down the snow is settling into a slab.
Lots of uncertainty surrounding the distribution of this layer in Little Yoho and what will trigger it with all of the new inputs of snow, wind and warm temperatures.
While the wind stays elevated loose dry avalanches will be a problem in gully features.
Moderate-Extreme SW winds have built fresh slabs in unusual places.  Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH. Which is now buried up to 1m deep.
20-40cm of storm snow has been accompanied by strong SW winds. Thick slabs in the lee of alpine and treeline features can be expected. Be on the look out in sheltered areas TL and below as this snow may be settling into a slab over surface hoar.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
While winds stay elevated and precipitation continues to come in,&nbsp; loose dry avalanches will be a problem in steep terrain.&nbsp; These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
20-40cm of storm snow has been accompanied by strong SW winds. Thick slabs in the lee of alpine and treeline features can be expected. Be on the look out in sheltered areas TL and below as this snow may be settling into a slab over surface hoar.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
While winds stay elevated and precipitation continues to come in,  loose dry avalanches will be a problem in steep terrain.  These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
Widespread wind effect at treeline and above. Consider avoiding terrain which is thin to thick and/or significant overhead wind loaded features.
This weakness could be triggered by large loads or from thin spots in the snowpack. All explosive triggered avalanches today at treeline and below failed on or close to the ground.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
Moderate-Extreme S'ly winds have built fresh slabs in unusual places (ie further downslope from ridge). Expect freshly buried slabs- approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH, which is now buried up to 1m deep.
An additional 20-40cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
An additional 20-30cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
Incoming snow paired with strong to extreme southwest winds will form new slabs at all elevations that will be reactive to human traffic.
The November facet/ melt freeze crust combo still lurks near the base of the snowpack, and is still very much in play with incoming snow. Triggers could include cornices, avalanches in the storm snow, or people in thin snowpack areas.
Widespread wind effect at treeline and above. Consider avoiding terrain which is thin to thick and/or significant overhead wind loaded features.
This weakness could be triggered by large loads or from thin spots in the snowpack. All explosive triggered avalanches today at treeline and below failed on or close to the ground.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
20mm of precip forecast today with gusty S winds will build new touchy storm slabs. Expect buried slabs from this past week's snow and extreme S winds. Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs have the potential to step down to the December 27th SH, which is now buried up to 1m deep. See the </span><a href="https://www.avalanche.ca/map?panel=mountain-information-network-submissions/7707db61-94f2-407b-96ca-cc13cae56c48" target="_blank"><span class="s_9255B882">MIN report</span></a><span class="s_AA239A9B"> from yesterday showing reactivity BTL.
An additional 20-30cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
New snow will bury and could trigger existing wind slabs as well as form new ones at treeline and above. Consider avoiding terrain which is thin to thick and/or significant overhead wind loaded features.
This weakness could be triggered by large loads or from thin spots in the snowpack.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
An additional 20-30cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
70cm of new snow with gusty S winds has created touchy storm slabs. Expect buried slabs from this past week's snow and extreme S winds. Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH, which is now buried over a metre deep.
70cm of new snow has the potential to entrain a lot of mass as it flows downhill.
Wind loading has reached critical mass and we are seeing many avalanches on wind loaded features at all elevations and aspects. Expect this to continue Thursday.
On Wednesday numerous avalanches were observed throughout the region that failed to ground
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
Recent storm snow and mod to strong winds have created storm and wind slabs in alpine and treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. If this occurs avalanches will be large and will run to valley bottoms.
Recent snow and winds have created fresh storm and wind slabs in alpine and treeline regions. It will take several days before these instabilities start to settle out.
In areas where there is a weaker lower pack there is still some potential for avalanches to step down into these weaker areas.
The new snow, accompanied by mod/strong SW winds, has created reactive storm slabs in lee alpine and tree-line features. Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH, which is now buried over a metre deep.
Avalanche activity related to wind slabs will taper off Friday but human triggered avalanches are still likely
On Wednesday numerous avalanches were observed throughout the region that failed to ground
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
Windslabs will create a sensitive bed surface for new snow arriving on the weekend.
The November facet/ melt freeze crust combo still lurks near the base of the snowpack, and is still very much in play with incoming snow. Triggers could include cornices, avalanches in the storm snow, or people in thin snowpack areas.
Recent storm snow and mod to strong winds have created storm and wind slabs in alpine and treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past 48 hours. Click on Forecast Details tab for more information.
Recent storm snow and mod to strong winds have created storm and wind slabs in alpine and treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist particularly in areas with a shallower snowpack. Several large avalanches have occurred on this layer in past 48 hours. Click on Forecast Details tab for more information.
The new snow, accompanied by mod-strong SW winds has created reactive storm slabs on all aspects. Extra caution in alpine and tree-line lees. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th surface hoar which is now buried over a meter deep.
Avalanche activity will taper off Saturday but human triggered avalanches are still likely.
On Wednesday numerous avalanches were observed throughout the region that failed to ground.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
Recent storm snow and mod to strong winds have created wind slabs in alpine and treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past 48 hours. Click on Forecast Details tab for more information.
Recent storm snow and moderate to strong winds have created wind slabs in alpine and tree line elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past 48 hours. Click on Forecast Details tab for more information.
Moderate to strong SW winds during the snowfall have loaded alpine and treeline lees. Slabs may be more reactive in these areas.
Storm slabs have the potential to step down to the December 27th surface hoar down 70-90cm.
Recent storm snow and mod to strong winds have created wind slabs in alpine and treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. Click on Forecast Details tab for more information.
Recent storm snow and mod to strong winds have created wind slabs in alpine and treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in the past few days. Click on Forecast Details tab for more information.
Avalanche activity has tapered off but human triggered avalanches are still likely.
On Wednesday, numerous avalanches were observed throughout the region that failed to ground. Activity has tapered off but may be waiting for the human trigger.
Caution in steep gullies and terrain traps where a small sluff could have major consequences. Avoid terrain where this problem could initiate slab avalanches on deeper layers.
Windslabs will will be difficult to spot with new snow arriving on Sunday. Buried windslab will act as a smooth bed surface for dry loose avalanches.
Watch out for fast-moving dry loose avalanches in steep terrain.
Recent light snowfalls now hide the storm slabs created by moderate to strong SW winds and heavy snowfall during last Wednesdays storm. Slabs are likely more reactive in lee areas.
The December 27th surface hoar layer persists down 70-90cm.&nbsp; This layer was responsible for two skier triggered avalanches yesterday, and continues to produce moderate to hard sudden planar results in snowpack tests.
Avalanche activity has tapered off but human triggered avalanches are still likely.
Numerous avalanches were observed throughout the region that failed to ground. Activity has tapered off but may be waiting for the human trigger.
Recent storm snow and moderate to strong winds have created wind slabs in the alpine and at treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. Click on Forecast Details tab for more information.
Recent storm snow and moderate to strong winds have created wind slabs in the alpine and at treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist although thicker snowpack areas in the region show less development of this weakness. Several large avalanches have occurred on this layer in past few days :see &quot;Forecast Details&quot;.
Moderate winds in the past 24hrs, starting from the NE and switching to S.
The December 27th surface hoar layer persists down 70-90cm. This layer was responsible for two skier triggered avalanches Saturday, and continues to produce hard sudden results in snowpack tests.
Recent storm snow and moderate to strong winds have created wind slabs in the alpine and at treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. Click on Forecast Details tab for more information.
Numerous avalanches were observed throughout the region that failed to ground. Activity has tapered off but may be waiting for the human trigger.
Be aware of the potential for rapidly developing windslabs due to the availability of cold, dry snow from recent storm. All aspects may be effected as the wind direction is variable through the forecast period.
Watch out for fast-moving dry loose avalanches in steep terrain.
Recent storm snow and moderate to strong winds have created wind slabs in the alpine and at treeline elevations. It will take several days for these instabilities to settle out.
The potential for deeper releases on the basal layers still exist although thicker snowpack areas in the region show less development of this weakness. Several large avalanches have occurred on this layer in past few days :see &quot;Forecast Details&quot;.
Moderate to Strong winds from the South, then switching to the NE built Wind Slabs in the Alpine and exposed areas of Treeline. Cold temperatures have slowed down avalanche initiation rendering the wind slabs stubborn to trigger.
The December 27th surface hoar layer persists down 70-90cm. This layer was responsible for two skier triggered avalanches Saturday, and continues to produce hard sudden results in snowpack tests.
Wind slabs still exist in the alpine and at treeline elevations from incremental snow fall and wind. Pay attention at the local level for new wind slab development.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. See forecast details.
Wind slabs still exist in the alpine and at treeline elevations from incremental snow fall and wind. Pay attention at the local level for new wind slab development.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. See forecast details.
Numerous avalanches were observed throughout the region that failed to ground. Activity has tapered off but may be waiting for the human trigger.
Previous Strong winds from many directions formed Wind Slabs at all elevations on specific terrain features. Cold temperatures have slowed down avalanche initiation rendering the wind slabs stubborn to trigger.
The December 27th surface hoar layer persists down 70-90cm. This layer was responsible for two skier triggered avalanches Saturday, and continues to produce hard sudden results in snowpack tests.
The strength of the bridging over the basal weakness will determine it's sensitivity to triggers. Deep penetrating cold has weakened shallow areas and may be more susceptible to triggering and propagation.
Fresh, windslabs are forming in leeward areas from incremental snow fall and wind. These could be brittle and easy to trigger.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. See forecast details.
Fresh, windslabs are forming in leeward areas from incremental snow fall and wind. These could be brittle and easy to trigger.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in past few days. See forecast details.
Strong winds from many directions formed Wind Slabs at all elevations on specific terrain features. These slabs are now concealed by 10cm of new snow. They are beginning to run naturally and will be easy to trigger by humans in the right spots.
The December 27th surface hoar layer persists down approximately 100cm. This layer is becoming less reactive in stability tests and it is increasingly harder to find in snow profiles, but the potential is still there to get surprised.
Fresh wind slabs are forming in leeward areas from incremental snow fall and wind. These could be brittle and easy to trigger.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in the past week.
Fresh wind slabs are forming in leeward areas from incremental snow fall and wind. These could be brittle and easy to trigger.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in the past week.
New, building wind slab with variable loading depending on location.&nbsp;
The strength of the bridging over the basal weakness will determine it's sensitivity to triggers. Deep penetrating cold has weakened shallow areas and may be more susceptible to triggering and propagation.
Increasing westerly winds will continue to form windslabs in the alpine and treeline. Be aware of the potential for buried windslabs in unexpected places.
Watch out for fast-moving dry loose avalanches in steep terrain, especially if temperatures warm quickly.
Multiple field teams confirmed the presence of easily-triggered soft wind slabs in exposed areas at all elevations. With strong southerly winds overnight, expect this problem to persists today. These slabs can have larger than expected propagation.
The December 27th surface hoar layer persists down approximately 100cm. This layer is becoming less reactive in stability tests and it is increasingly harder to find in snow profiles, but the potential is still there to get surprised.
Wind slabs are forming in leeward areas from recent snowfall and moderate Southerly winds. These could be easy to trigger.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in the past week.
Up to 15cm new snow not bonding well to previous surface. As temps warm expect continued dry loose out of steep terrain.
New wind slabs forming on easterly aspects at ridgetop along with cornice growth. Buried wind slabs on all aspects in the alpine could become more reactive as temperatures warm.
The recent cold weather has promoted facetting and weakening of the snowpack compromising the bridging strength. Potential for triggering these deeper layers could increase as temperatures warm.
Wind slabs are forming in leeward areas from recent snowfall and moderate Southerly winds. These could be easy to trigger.
The potential for deeper releases on the basal layers still exist. Several large avalanches have occurred on this layer in the past week.
Strong westerly winds will continue to form windslabs in the alpine and treeline.
As temperatures warm, the basal facets may become a player again, especially in the relatively shallow front ranges. Consider overhead hazard, the consequence of a small avalanche triggering a deeper slab, and stick to deep well supported terrain.
Multiple field teams confirmed the presence of easily-triggered soft wind slabs in exposed areas at all elevations. Expect this problem to persists today. These slabs can have larger than expected propagation.
The December 27th surface hoar layer persists down approximately 100cm. This layer is becoming less reactive in stability tests and it is increasingly harder to find in snow profiles, but the potential is still there to get surprised.
Reactive wind slabs reported over the last 2 days which will likely continue with the warming temperatures and strong winds.
Only large triggers like cornices have caused the odd slide on the deep facets/depth hoar recently, but it is almost impossible to forecast with any accuracy which avalanche slopes could be triggered. Conservative terrain choice is your best defence.
Up to 15cm new snow not bonding well to previous surface. As temps warm expect continued dry loose sluffs out of steep terrain.
New wind slabs forming on easterly aspects at ridgetop along with cornice growth. Buried wind slabs on all aspects in the alpine could become more reactive as temperatures warm.
The recent cold weather has promoted facetting and weakening of the snowpack compromising the bridging strength. Potential for triggering these deeper layers could increase as temperatures warm.
Reactive wind slabs reported over the last 2 days which will likely continue with the warming temperatures and strong winds.
Thicker snowpack areas in the region may not have this layer present, but where it exists it is hard to predict what will trigger a slope with any accuracy. Dig down to see if it is present, and if so conservative terrain choice is your best defence.
Recent new snow overlies wind stiffened and facetted surfaces, and may be a reactive slab in isolated areas where the wind has stiffened the surface.
The December 27th surface hoar/crust layer persists down approximately 100cm. This layer is becoming less reactive in stability tests and it is increasingly harder to find in snow profiles, but the potential is still there to get surprised.
New wind slabs forming on easterly aspects at ridgetop along with cornice growth. Old and buried wind slabs on all aspects in the alpine could become more reactive as temperatures warm.
The recent cold weather has promoted facetting and weakening of the snowpack compromising the bridging strength. Potential for triggering these deeper layers could increase as temperatures warm.
Up to 15cm new snow may not be bonding well to previous surface. As temps warm, expect continued dry loose sluffs out of steep terrain.
Moderate south westerly winds will continue to form windslabs in the alpine and treeline, especially if we see new snow up high on Tuesday night/Wednesday
As temperatures warm, the basal facets may become a player again, especially in the relatively shallow front ranges. Consider overhead hazard, the consequence of a small avalanche triggering a deeper slab, and stick to deep well supported terrain.
Reactive wind slabs reported over the last 2 days which will likely continue with the warming temperatures and strong winds.
Were beginning to receive reports of increased avalanche activity from the problem (see forecast details for more info) Conservative terrain choice is your best defence.
Reactive wind slabs reported over the last 2 days which will likely continue with the warming temperatures and strong winds.
Were beginning to receive reports of increased avalanche activity from the problem (see forecast details for more info) Conservative terrain choice is your best defence.
Recent new snow overlies wind stiffened and facetted surfaces, and may be a reactive slab in isolated areas where the wind has stiffened the surface.
Cornice failures and wind slabs triggered by wind loading continue to be reported in the area. Minimize exposure to cornices and avoid steep wind loaded terrain until things settle out.
We have seen a few recent avalanches on the deep persistent problem of basal facets and depth hoar, often beginning as wind slabs and then stepping down to the weak base. Conservative terrain choice is your best defence.
Cornice failures and wind slabs triggered by wind loading continue to be reported in the area. Minimize exposure to cornices and avoid steep wind loaded terrain until things settle out.
We have seen a few recent avalanches on the deep persistent problem of basal facets and depth hoar, often beginning as wind slabs and then stepping down to the weak base. Conservative terrain choice is your best defence.
New wind slabs at ridgetop along with cornice growth.
Cold facetting has weakened of the snowpack and compromised the bridging strength. Potential for triggering these deeper layers could increase as temperatures warm.
Recent new snow overlies facetted and/or firm surfaces. Where the wind has stiffened the new snow into a slab, small pockets have the potential to pop out (ridge-tops, immediate lee features, cross-loaded alpine gullies, etc).
Wind slabs were less reactive today, even with explosive control. Isolated pockets of wind still exist in lee areas.&nbsp;
We have seen a few recent avalanches on the deep persistent problem of basal facets and depth hoar, often beginning as wind slabs and then stepping down to the weak base. Conservative terrain choice is your best defence.
Winds have tapered off but wind slabs at ridgetop are present with the previous wind effects.&nbsp;
The likely trigger spot would be from a shallow location. This is a complex problem particularly with our spatial variability across the landscape.
Wind slabs were less reactive today, even with explosive control. Isolated pockets of wind still exist in lee areas.
We have seen a few recent avalanches on the deep persistent problem of basal facets and depth hoar, often beginning as wind slabs and then stepping down to the weak base. Conservative terrain choice is your best defence.
Recent new snow overlies facetted and/or firm surfaces. Overnight SW'ly winds will have built up soft slabs in alpine lee and ridgeline features.
Winds continue to move the snow around particularly&nbsp; at ridgetop. There was allot of previous wind effects as well.
The likely trigger spot would be from a shallow location. This is a complex problem particularly with our spatial variability across the landscape. Large triggers, such as cornice failures, is enough to trigger this deep instability.
Wind slabs have been less reactive, even with explosive control. Isolated pockets of wind still exist in lee areas.
We have seen a few recent avalanches on the deep persistent problem of basal facets and depth hoar, often beginning as wind slabs and then stepping down to the weak base. Conservative terrain choice is your best defence.
Wind slabs have been less reactive, even with explosive control. Isolated pockets of wind still exist in lee areas.
We have seen a few recent avalanches on the deep persistent problem of basal facets and depth hoar, often beginning as wind slabs and then stepping down to the weak base. Conservative terrain choice is your best defence.
New snow, previous strong wind and warm temperatures are great ingredients for slab avalanches. Storm slabs have been, and will continue to be most reactive on steep, unsupported/cross-loaded terrain features.
Consistent moderate SW winds.
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche make this extremely difficult to gain confidence in the snowpack bridging this weakness. Caution and good travel habits are always advised.
As temperatures warm, the basal facets may become a player again, especially in the relatively shallow front ranges. Consider overhead hazard, the consequence of a small avalanche triggering a deeper slab, and stick to deep well supported terrain.
Fresh wind slabs exist near ridge-tops.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer. Conservative terrain choice is your best defence.
Fresh wind slabs exist near ridge-tops.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer. Conservative terrain choice is your best defence.
More new snow and warm temperatures will promote slab development and increase the likelihood of triggering today. Storm slabs are most reactive on steep, unsupported and cross-loaded terrain features.
Wind slabs exist near ridge-tops.  They have been small in size but should be treated with respect, especially in gully features.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer. Conservative terrain choice is your best defence as this problem is almost impossible to forecast.
Previous mod to strong SW winds have created new wind slabs, these are now buried by 10 cm of new snow in the Icefields area.
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack.  Consider this before entering bigger features.
Wind slabs exist near ridge-tops. They have been small in size but should be treated with respect, especially in gully features.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer. Conservative terrain choice is your best defence as this problem is almost impossible to forecast.
20cm of new snow in the past 2 days fell with warm temperatures and moderate S winds, promoting the development of reactive slabs. The sun could initiate another natural avalanche cycle today.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Conservative terrain choices are your best defence as this problem is almost impossible to forecast.
Wind slabs exist near ridge-tops. With increased winds on Sunday these will remain possible to trigger.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Conservative terrain choices are your best defence as this problem is almost impossible to forecast.
Wind slabs exist near ridge-tops. With increased winds on Sunday these will remain possible to trigger.
Continued mod SW winds have created new wind slabs,
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack. Consider this before entering bigger features.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Incremental snowfall, combined with periods of moderate to strong wind, have loaded lee slopes. Pockets of reactive wind slab exist. Yesterday 2 skiers were seriously injured in an avalanche they triggered in the </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Forever%20Young%20Sa%2020200125.jpg" target="_blank"><span class="s_9255B882">Forever Young couloir.</span></a><span class="s_AA239
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Conservative terrain choices are your best defence as this problem is almost impossible to forecast.
Wind slabs exist near ridge-tops. With elevated winds continuing overnight Sunday thought Tuesday, expect these slabs to develop.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Conservative terrain choices are your best defence as this problem is almost impossible to forecast.
Wind slabs exist near ridge-tops. With elevated winds continuing overnight Sunday thought Tuesday, expect these slabs to develop.
Continued mod SW winds have created new wind slabs
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack. Consider this before entering bigger features.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Incremental snowfall, combined with periods of moderate to strong wind, have loaded lee slopes. Pockets of reactive wind slab exist. On Saturday, 2 skiers were seriously injured in an avalanche they triggered in the </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Forever%20Young%20Sa%2020200125.jpg" target="_blank"><span class="s_9255B882">Forever Young couloir.</span></a><span class="s_AA239
Continued building of new windslabs through the region. Most prominent on N through E aspects due to SW winds but riders should be wary of obvious wind effect and surface clues on all exposed or potentially cross-loaded slopes at treeline and above.
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack. Consider this before entering bigger features.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Be cautious with snowpack depths below 2m by choosing conservative terrain: modest angle and supported shape
Fresh wind slabs will continue to develop over the next several days with incoming snow and moderate to extreme winds expected in the alpine.
Strong southwest winds have created stiff wind slabs in lee features at alpine and treeline. Natural activity may have subsided but human triggering remains possible.
Although recent warm temperatures have generally added strength to the snowpack, triggering persistent slabs is still possible in shallow snowpack areas.
Generally the snowpack in the Little Yoho region is deeper and these layers are not as distinct. There area however areas, such as the ice climbs on Mounts Dennis and Stephen, that will display a shallower snowpack which must be treated with caution.
Fresh wind slabs will continue to develop over the next several days with incoming snow and moderate to extreme winds expected in the alpine.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Light snowfall, combined with periods of moderate to strong wind, have loaded lee slopes. Pockets of wind slab exist in the alpine/upper tree-line. On Sat, 2 skiers were seriously injured in an avalanche they triggered in the </span><a href="https://www.avalanche.ca/map?panel=mountain-information-network-submissions/540f568f-5073-4518-b53a-630bc7964159" target="_blank"><span class="s_9255B882">Forever Young couloir</span></a><span class="s_AA239A9B">.
Continued building of new windslabs through the region. Most prominent on N through E aspects due to SW winds but riders should be wary of obvious wind effect and surface clues on all exposed or potentially cross-loaded slopes at treeline and above.
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack. Consider this before entering bigger features.
Extreme wind values from the SW throughout the day on Wednesday will load lee areas, especially in the alpine. Due to the extreme winds, wind slabs could be forming at tree line.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Be cautious with shallow snowpack areas and avoid thin spots.
Extreme wind values from the SW throughout the day on Wednesday will load lee areas, especially in the alpine. Due to the extreme winds, wind slabs could be forming at tree line.
Generally the snowpack in the Little Yoho region is deeper and these layers are not as distinct. It is still a good idea to be cautious with shallow snowpack areas and avoid thin spots.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Light snowfall combined with periods of moderate to strong wind have loaded lee slopes. Pockets of wind slab exist in the alpine/upper tree-line. On Sat, 2 skiers were seriously injured in an avalanche they triggered in the </span><a href="https://www.avalanche.ca/map?panel=mountain-information-network-submissions/540f568f-5073-4518-b53a-630bc7964159" target="_blank"><span class="s_9255B882">Forever Young couloir</span></a><span class="s_AA239A9B">.
Windslabs continue to build with steady strong Southwest winds. They are prominent on N through E aspects but be wary of wind effect on all exposed or potentially cross-loaded slopes at treeline and above from local terrain influences.
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack. Consider this before entering large features.
Extreme wind values from the SW will load lee areas, especially in the alpine. With the intensity of the forecasted winds to continue through the weekend, expect windslab development at lower elevations.
Generally the snowpack in the Little Yoho region is deeper and these layers are not as distinct. It is still a good idea to be cautious with shallow snowpack areas and avoid thin spots.
Extreme wind values from the SW are loading lee slopes at alpine and tree line elevations. An increase in natural avalanche activity on this problem was observed Wednesday.
In the past week we have seen several avalanches initiate or step down to this deep persistent layer of facets, depth hoar and crusts. Be cautious with shallow snowpack areas and avoid thin spots.
20cm of new snow, coupled with mod to strong wind from the S-SW likely formed storm slabs in cross-loaded terrain features and immediate lees. Slabs will be most prevalent on Northerly asp; however, Solar asp could become touchy is the sun stays out.
Storm slabs will be developing through the day depending on location. This listed problem also incorporates previous wind slabs as well as loose dry avalanches in steep terrain, all of which will be increasing in size and likelihood.&nbsp;
With the large load expected over the next 48 hours, it is plausible we will see an increase in very large avalanches either starting or stepping down to the deep basal facets and depth hoar.&nbsp; Avalanches are expected to reach valley bottom.
Storm slabs will be developing through the day depending on location. This listed problem also incorporates previous wind slabs as well as loose dry avalanches in steep terrain, all of which will be increasing in size and likelihood.
Where this layer of basal facets and depth hoar exists in shallower snowpack areas, we expect an increase in natural activity.&nbsp; These will result&nbsp; in very large avalanches which could run to valley bottom.
A strong warm storm is expected to deliver upwards of 80cm of snow in the next 36 hours.
This is a complex problem. The spacial variability and potential consequences of triggering a large avalanche on this layer makes it extremely difficult to gain confidence in the snowpack. Consider this before entering large features.
The snowpack is extremely variable in depth and strength. Rapid loading in expected to cause a widespread natural avalanche cycle late Friday into Saturday.
Strong southwest winds have created stiff wind slabs in lee features. New snow will make buried windslab difficult to spot.
Today's main problem is the result of large amounts of snow arriving with strong to extreme winds. We are mid-storm with 30cm down and approximately 60cm to go over the next 2 days. Avalanche hazard will rise sharply this afternoon.
Storm slabs will be developing through the night. This problem also incorporates wind slabs as well as loose dry avalanches in steep terrain, all of which will be increasing in size and likelihood as the storm tracks through the region.
With the large load expected over the next 24 hours, we expect very large avalanches either starting or stepping down to the deep basal facets and depth hoar. Avalanches are expected to reach valley bottom and possible to extreme runouts.
60 cm forecast with Extreme winds. We should see widespread avalanche activity at all elevation with large avalanches running full path.
It is very likely that the amount of snow forecasted will overload this weakness and we will see avalanche running to ground on this layer. No one should be entering avalanche terrain at this time!
Storm slabs will be developing through the night. This problem also incorporates wind slabs as well as loose dry avalanches in steep terrain, all of which will be increasing in size and likelihood as the storm tracks through the region.
With the large load expected over the next 24 hours, we expect very large avalanches either starting or stepping down to the deep basal facets and depth hoar. Avalanches are expected to reach valley bottom and possible to extreme runouts.
Warm storm slabs are failing naturally from precipitation and wind overload. These slides are running to valley bottom.
Up to 40 cm in last 24 hrs with Mod SW winds. We should see widespread avalanche activity at all elevation with large avalanches running full path. 
It is very likely that this new and heavy snow load will overload this weakness and we will see avalanches running to ground on this layer. No one should be entering avalanche terrain at this time!
Storm and wind slabs developed rapidly in the past 24hrs along with fragile cornice growth. Despite the cooling trend, expect these slabs to remain sensitive to failure over the short term with continued natural activity expected.
With start zones loaded and the snowpack weakened by rain at lower elevations, avalanches can easily scrub to ground and entrain mass as they move though the track and into the run out zone. Many slides have reached valley bottom in the past 24 hrs.
Storm and wind slabs developed rapidly in the past 24hrs along with fragile cornice growth. Despite the cooling trend, expect these slabs to remain sensitive to failure over the short term with continued natural activity expected.
With start zones loaded and the snowpack weakened by rain at lower elevations, avalanches can easily scrub to ground and entrain mass as they move though the track and into the run out zone. Many slides have reached valley bottom in the past 24 hrs.
Fresh pockets of soft windslab that formed late in the storm will be reactive today.&nbsp; The deep and stiff widespread windslab that formed mid storm will be more stubborn, but may remain senstive to human and cornice triggering in the alpine.
Cornices will have grown significantly in the past 48hrs and deserve a wide berth.&nbsp; Stay well back from corniced ridges, and do not hang out anywhere beneath them.
Wind slabs developed rapidly along with fragile cornice growth from consistently strong Southwest winds. Despite the cooling trend, expect these slabs to remain sensitive to failure over the short term with continued natural activity.
With start zones loaded, avalanches can easily scrub to ground and entrain mass as they move through the track and into the run out zone. Many slides have reached valley bottom in the past 48 hrs.
Wind slabs developed rapidly along with fragile cornice growth from consistently strong Southwest winds. Despite the cooling trend, expect these slabs to remain sensitive to failure over the short term with continued natural activity.
With start zones loaded, avalanches can easily scrub to ground and entrain mass as they move through the track and into the run out zone. Many slides have reached valley bottom in the past 48 hrs.
Fresh pockets of soft windslab that formed late in the storm linger on lee slopes. The deep and stiff widespread windslab that formed mid storm is generally unreactive, but may remain sensitive to large triggers like cornices in the alpine.
Cornices grew significantly Saturday and deserve a wide berth. Stay well back from corniced ridges.
Wind slabs developed rapidly along with fragile cornice growth from consistently strong Southwest winds. Despite the cooling trend, expect these slabs to remain sensitive to failure over the short term.
With start zones loaded, avalanches can easily scrub to ground and entrain mass as they move through the track and into the run out zone.
Wind slabs developed rapidly along with fragile cornice growth from consistently strong Southwest winds. Despite the cooling trend, expect these slabs to remain sensitive to failure over the short term.
With start zones loaded, avalanches can easily scrub to ground and entrain mass as they move through the track and into the run out zone.
Recent extreme winds have created thick wind slabs in the alpine. Be very cautious as you climb to treeline and leave the thick surface crust behind, the snowpack will change very quickly.
Up to 50 cm during the recent storm with Mod SW winds.
Recent 50 cm of new snow has the potential to overload this weakness
Fresh pockets of soft windslab that formed late in the storm linger on lee slopes. The deep and stiff widespread windslab that formed mid storm is generally unreactive, but may remain sensitive to large triggers like cornices in the alpine.
Cornices grew significantly Saturday and deserve a wide berth. Stay well back from corniced ridges.
Increasing wind into the strong range will load lee (NE) aspects, especially in the alpine starting late on Tuesday. Storm snow from last week will be easily distributed.
Deep releases to ground are less likely, however, start zones will be loaded again with forecasted strong wind. Avoid exposure to start zones until there is less uncertainty.&nbsp;
Increasing wind into the strong range will load lee (NE) aspects, especially in the alpine starting late on Tuesday. Storm snow from last week will be easily distributed.
Deep releases to ground are less likely, however, start zones will be loaded again with forecasted strong wind. Avoid exposure to start zones until there is less uncertainty.
New and building windslabs present in the forecast region. Slab sensitivity will vary; with potentially wide variations over a small area. Assess each slope independently.
Up to 50 cm during the recent storm with Mod SW winds.
Yesterday's moderate wind produced wind slabs on immediate lees, and cross-loaded terrain features in the alpine and exposed areas of treeline.
Cornices have grown significantly thanks to our Atmospheric River last weekend. The number of Cornice failures has declined in the last 48 hours but, they are still susceptible to failure and have the potential to trigger large avalanches.
Previous storm snow from this past week has been redistributed by increased SW winds over the past 2 days. These wind slabs could be quite thick in some spots and should be treated with caution, especially in alpine features.
Deep releases on the facets and depth hoar could be less likely but are hard to predict. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
Previous storm snow from this past week has been redistributed by increased SW winds over the past 2 days. These wind slabs could be quite thick in some spots and should be treated with caution, especially in alpine features.
Deep releases on the facets and depth hoar could be less likely in thicker snowpack areas but are hard to predict. Dealing with the uncertainty can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
New and developing wind slabs in the forecast region. Slab sensitivity will vary; with potentially wide variations over a small area. Assess each slope independently.&nbsp;
Incremental loading of new low-density snow and moderate to strong wind has formed storm slabs on immediate lees, and cross-loaded terrain features at all elevations.
We now have enough low-density new snow for a loose dry avalanche problem. Practise your &quot;sluff&quot; management today, and be cognisant of terrain traps below you, or other parties above you.
Cornices have grown significantly thanks to our Atmospheric River last weekend. The number of Cornice failures has declined in the last 48 hours but, they are still susceptible to failure and have the potential to trigger large avalanches.
New and developing wind slabs in the forecast region. Slab sensitivity will vary; with potentially wide variations over a small area. Assess each slope independently.
Recent moderate-strong winds have built wind slabs in the alpine down to tree line. These wind slabs could be quite thick in some spots and should be treated with caution, especially in alpine features.
Deep releases on the facets and depth hoar could be less likely but are hard to predict. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
Recent moderate-strong winds have built wind slabs in the alpine down to tree line. These wind slabs could be quite thick in some spots and should be treated with caution, especially in alpine features.
Deep releases on the facets and depth hoar could be less likely but are hard to predict. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
Incoming wind and snow will form new slabs at all elevations. Below 2000m, these will sit on a melt freeze crust which could serve as an excellent bed surface and increase reactivity. Take the time to evaluate the bond of new snow to this layer.
New low-density snow and moderate to strong wind has formed slabs on immediate lees, and cross-loaded terrain features.
Cornices have grown significantly thanks to our Atmospheric River last weekend. These are still susceptible to fail naturally, and have the potential to trigger large avalanches.
Incoming wind and snow will form slabs at all elevations and aspects. Below 2000m, these will sit on a thick crust which could serve as an excellent bed surface and increase reactivity. Take the time to evaluate the bond of new snow to this layer.
Wind over the last week has redistributed snow in the alpine creating wind effect and forming slabs. An increase in winds overnight Friday with incoming snow, a wind shift to the east Sunday and strong winds forecast for Sunday will build these slabs
High consequence deep releases on the facets and depth hoar at the base of the snowpack remain possible. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
New and developing wind slabs are present in the forecast region. Their sensitivity will vary particularly  with local loading and wind patterns. 
Wind over the last week has redistributed snow in the alpine creating wind effect and forming slabs. An increase in winds overnight Friday with incoming snow, a wind shift to the east Sunday and strong winds forecast for Sunday will build these slabs
High consequence deep releases on the facets and depth hoar at the base of the snowpack remain possible. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
New snow will be reactive today, and could run fast and far on slopes where it overlies previous firm surfaces.
New snow may hide windslabs from previous moderate to strong winds - these formed in immediate lees, and cross-loaded terrain features in the alpine and in open treeline areas.
Cornices have grown significantly thanks to our Atmospheric River last weekend. These are still susceptible to fail naturally, and have the potential to trigger large avalanches.
New and developing wind slabs are present in the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.
Wind over the last week has redistributed snow in the alpine creating wind effect and forming slabs. Strong alpine winds forecast for Sunday and Tuesday will develop these slabs and likely form them at treeline as well.
High consequence deep releases on the facets and depth hoar at the base of the snowpack remain possible. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
Wind over the last week has redistributed snow in the alpine creating wind effect and forming slabs. Strong alpine winds forecast for Sunday and Tuesday will develop these slabs and likely form them at treeline as well.
High consequence deep releases on the facets and depth hoar at the base of the snowpack remain possible. Dealing with the uncertainty around this layer can be somewhat managed by avoiding large, committing terrain and areas with a thin snowpack.
This week's low density snow has not yet consolidated, and could run fast and far on slopes where it overlies previous firm surfaces.
Moderate to strong winds overnight will have formed new wind slabs in immediate lees, and cross-loaded terrain features in the alpine and in open treeline areas.
New and developing wind slabs are present in the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.
Strong winds on Sunday created new wind slabs at treeline and in the alpine. These could be triggered by skiers or climbers. Choose routes or ski lines where you can avoid wind slabs until they have a chance to bond.
High consequence avalanches on the facets and depth hoar at the base of the snowpack remain possible. Large triggers such as cornices and wind slabs, or human triggering in thin snowpack areas are most likely to result in avalanches on this layer.
Strong winds on Sunday created new wind slabs at treeline and in the alpine. These could be triggered by skiers or climbers. Choose routes or ski lines where you can avoid wind slabs until they have a chance to bond.
High consequence avalanches on the facets and depth hoar at the base of the snowpack remain possible. Large triggers such as cornices and wind slabs, or human triggering in thin snowpack areas are most likely to result in avalanches on this layer.
This week's low density snow has not yet consolidated. This new snow could run fast and far, especially on slopes where it overlies previous firm surfaces.
Mod to strong winds the past 24 hrs have formed fresh slabs in immediate lees and cross-loaded terrain features in the alpine and in open treeline areas. Variable wind direction throughout the park- use caution as you transition aspect and elevation.
This week's low density snow has not yet consolidated. This new snow could run fast and far, especially on slopes where it overlies previous firm surfaces.
Mod to strong winds the past 24 hrs have formed fresh slabs in immediate lees and cross-loaded terrain features in the alpine and in open treeline areas. Variable wind direction throughout the park- use caution as you transition aspect and elevation.
Strong SW winds and new snow is forecasted for Tuesday.&nbsp; When this materializes expect new wind slabs in lee areas. These could be triggered by skiers or climbers. Travel where you can avoid wind slabs until they have a chance to bond.
High consequence avalanches on the facets and depth hoar at the base of the snowpack remain possible. Large triggers such as cornices and wind slabs, or human triggering in thin snowpack areas are most likely to result in avalanches on this layer.
Strong SW winds and new snow is forecasted for Tuesday. When this materializes expect new wind slabs in lee areas. These could be triggered by skiers or climbers. Travel where you can avoid wind slabs until they have a chance to bond.
High consequence avalanches on the facets and depth hoar at the base of the snowpack remain possible. Large triggers such as cornices and wind slabs, or human triggering in thin snowpack areas are most likely to result in avalanches on this layer.
Incoming wind and snow will form new slabs on lee aspects. Below 2000m, these sit on a thick crust which could serve as an excellent bed surface and allow fractures to propagate surprisingly far. Take the time to evaluate the bond to this layer.
Wind slabs are prevalent through the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.
Gusty SW winds are moving snow around right now, creating pockets of soft slab in the alpine and exposed tree-line locations. Steep zones like Cheops N, Macdonald, and the S side of Tupper will likely be active today with avalanches.
This week's low density snow has a propensity to sluff far and fast, especially with another 5-10cm today.
Strong wind from the SW materialized today and created wind slabs in lee areas. Ski patrollers could easily ski cut small soft avalanches today. Travel where you can avoid wind slabs until they have a chance to bond.
High consequence avalanches on the facets and depth hoar at the base of the snowpack remain possible. Large triggers such as cornices and wind slabs, or human triggering in thin snowpack areas are most likely to result in avalanches on this layer.
Wind slabs are prevalent through the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.
Strong wind from the SW materialized today and created wind slabs in lee areas. Ski patrollers could easily ski cut small soft avalanches today. Travel where you can avoid wind slabs until they have a chance to bond.
Due to a more consolidated basal snowpack, deep persistent slab avalanches are less likely in Little Yoho. However, avoiding shallow areas where triggering is most likely is always good practice.
The most recent snowfall came with milder temps, creating a 10-20cm soft slab that seemed reactive on steep, unsupported rolls at all elevations. This new storm slab may hide previous wind slabs in alpine lee and cross-loaded features.
Wind slabs are prevalent through the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.
We expect these in the very high alpine (~3000 m) and they could be buried under new snow. Unlikely to release naturally unless triggered by sun or more wind, but human triggering is possible if you find one. Feel for density changes underfoot.
We continue to see one of these avalanches every few days. Very isolated but very destructive. Avoid travel directly through avalanche starting zones until this layer has had more time to stabilize. That is the only answer: time and patience.
We expect these in the very high alpine (~3000 m) and they could be buried under new snow. Unlikely to release naturally unless triggered by sun or more wind, but human triggering is possible if you find one. Feel for density changes underfoot.
This problem is not found is most of the Little Yoho region (Mt. Field, Little Yoho Valley), but we remain concerned about it in shallow areas such as Mt Dennis, Mt Stephen and perhaps even Emerald Lake were we have no recent observations.
Snowfall earlier this week was accompanied by milder temps, creating a 10-20cm soft slab that seemed reactive on steep, unsupported rolls at all elevations. This new storm slab may hide previous wind slabs in alpine lee and cross-loaded features.
Wind slabs are prevalent through the forecast region. Their sensitivity will vary particularly with local loading and wind patterns.
Below 2100m, windslabs sit on a thick melt freeze crust which could serve as an excellent bed surface and allow fractures to propagate surprisingly far. Take the time to evaluate the bond to this layer.
Small wind-slabs can be expected near ridge-tops and lee terrain in the alpine.
Several larger avalanches failing on this layer have been observed in the past week. Bigger features and convex slopes should still be avoided until this layer stabilizes.
Small wind-slabs can be expected near ridge-tops and lee terrain in the alpine.
The mid and lower snowpack is generally strong in this region. Concern still exists for shallower areas where basal facets may exist. Examples are wind affected terrain in the alpine.
30cm of storm snow in the last 24hrs at treeline with mod S-W winds. Expect soft storm slab with more potential for human triggering as you move into wind effected terrain.
30cm of storm snow will lead to loose dry slides in steep to extreme terrain. Avoid gulley features where small slides may form deeper deposits.
While winds stay elevated, wind-slabs can be expected near ridge-tops and lee terrain in the alpine.
Several larger avalanches failing on the basal facet/depth hoar have been observed in the past week. This problem is more susceptible to triggering in areas with a thin snowpack (~150cm) where they are well preserved and are hard to predict.
Small wind-slabs can be expected near ridge-tops and lee terrain in the alpine.
The mid and lower snowpack is generally strong in this region. Concern still exists for shallower areas especially in the alpine where basal facets may exist. We have limited alpine observations to know if this is a problem or not.
Continued Moderate SW winds are keeping the wind slabs touchy in lee features.&nbsp;  Sensitivity will vary with local loading and wind patterns.
45cm of storm snow in the last 48hrs at treeline with mod S-W winds and up to 10cm forecast today. Expect soft storm slab with more potential for human triggering as you move into wind effected terrain.
While winds stay elevated, wind-slabs can be expected near ridge-tops and lee terrain in the alpine.
Several larger avalanches failing on the basal facet/depth hoar have been observed in the past week. This problem is more susceptible to triggering in areas with a thin snowpack (~150cm) where they are well preserved and are hard to predict.
Strong winds in the park today. SW winds are keeping the wind slabs touchy in lee features. Sensitivity will vary with local loading and wind patterns.
Wind effect and slab development can be anticipated as you climb above the trees. Extensive wind effect with hard slab development can be expected in the alpine.
The mid and lower snowpack is generally strong in this region. Concern still exists for shallower areas especially in the alpine where basal facets may exist. We have limited alpine observations to know if this is a problem or not.
Wind slabs are very prevalent with previous loading in lee features. Sensitivity will vary with local loading and wind patterns.
Recent strong W winds have created wind slabs near ridge tops and in lee areas of the alpine, with isolated wind slabs down into treeline. Avoid wind loaded areas and watch for freshly loaded cornices up high for the next day or two.
Several large avalanches failing on the basal facet/depth hoar have been observed in the past week. These can be hard to predict but triggering is more likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Wind effect and wind slabs are present in isolated areas at treeline and more common in the alpine. Skier triggering the wind slabs is possible in steep or convex terrain. Recent cornice development has also occurred so minimize exposure to cornices.
The mid and lower snowpack is generally strong in this region. Concern still exists for shallow areas especially in the alpine where the basal facets exist. Probe regularly to determine snow depth and whether the weaker basal facets are present.
New snow accompanied by moderate westerly winds has created windslabs at Tree-line and Alpine elevations. Slabs were observed at ridge-top areas and on exposed, cross-loaded slopes. Last night's low density dusting may be hiding these slabs.
Wind slabs are widespread through the region with new and previous loading in lee features. Sensitivity will vary with local loading and wind patterns.
Shallow snowpack areas, windslabs and/or large triggers such as cornice failures could trigger this deep layer. The consequences of triggering will likely be severe!
Recently formed windslabs are stabilizing but can still be triggered by people in steep leeward areas at treeline and in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Several large avalanches failing naturally on the basal facet/depth hoar have been observed in the past week. These are hard to predict, but are most likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Recently formed windslabs are stabilizing but can still be triggered by people in steep leeward areas at treeline and in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
This problem is isolated to shallow snowpack areas in Little Yoho, such as Mt. Dennis or Mt. Stephen and we have not had a report of a large, deep avalanche in this area for some time.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The reactivity of these windslabs is extremely variable. Avoid heavily loaded areas and be aware that below 2200m, windslabs sit on a thick melt freeze crust which could serve as an excellent </span><a href="https://www.avalanche.ca/glossary?q=bed+su#bed-surface" target="_blank"><span class="s_9255B882">bed surface</span></a><span class="s_AA239A9B">.
New snow accompanied by recent moderate westerly winds has created windslabs at Alpine elevations. Slabs were observed this week at ridge-top areas and on exposed, cross-loaded slopes. Last night's low density dusting may be hiding these slabs.
Recently formed windslabs are stabilizing but can still be triggered by people in steep leeward areas in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Several large avalanches failing naturally on the basal facet/depth hoar have been observed in the past week. These are hard to predict, but are most likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Recently formed windslabs are stabilizing but can still be triggered by people in steep leeward areas in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
This problem is isolated to shallow snowpack areas in Little Yoho, such as Mt. Dennis or Mt. Stephen and we have not had a report of a large, deep avalanche in this area for some time.
Wind slabs are widespread through the region with new and previous loading in lee features. Sensitivity will vary with local loading and wind patterns.
Shallow snowpack areas, windslabs and/or large triggers such as cornice failures could trigger this deep layer. The consequences of triggering will likely be severe!
New snow accompanied by recent moderate westerly winds has created wind slabs in isolated locations. Slabs were observed this week at ridge-top areas and on exposed, cross-loaded slopes.
If the sun stays out today, loose dry avalanches may be initiated on steep SE-W aspects and around rocky features.
Increased winds Thursday may add to recently formed wind slabs that can still be triggered by people in steep leeward areas in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Several large avalanches failing naturally on the basal facet/depth hoar have been observed in the past week. These are hard to predict, but are most likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Wind slabs are widespread through the region with new and previous loading in lee features. Sensitivity will vary with local loading and wind patterns.
Shallow snowpack areas, windslabs and/or large triggers such as cornice failures could trigger this deep layer. The consequences of triggering will likely be severe!
Increased winds Thursday may add to recently formed windslabs, which can still be triggered by people in steep leeward areas in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Solar-triggered avalanches on steep south facing aspects remain a concern for today. These avalanches are especially likely around rocky outcrops when daytime heating is intensified by the rocks.  Solar heating also weakens cornices.
Consistent moderate winds from the SW have formed fresh wind slab in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Several large avalanches failing naturally on the basal facet/depth hoar have been observed in the past week. These are hard to predict, but are most likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Consistent moderate SW winds continues to build fresh wind slab in the alpine and remains possible to trigger. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Strong winds over the next three days will amplify this problem in specific locations.
Watch for avalanches triggered by prolonged solar input on steep south facing aspects today. These avalanches are especially likely around rocky outcrops where daytime heating is absorbed by dark rock surfaces. Solar heating also weakens cornices.
Sporadic cornice failures have occurred over the last few days. Limit your exposure to these large triggers.
Consistent moderate winds, gusting to extreme from the SW have formed fresh wind slab in the alpine. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Several large avalanches failing naturally on the basal facet/depth hoar have been observed in the ten days. These are hard to predict, but are most likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Consistent moderate to strong Southerly winds continues to build fresh wind slab in the alpine and remains possible to trigger. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Wind slabs are widespread through the region with new and previous loading in lee features. Sensitivity will vary with local loading and wind patterns. Winds continue to blow strong.&nbsp;
Triggering could occur from shallow snowpack areas or from large loads such a cornice failure. The consequences of triggering will likely be severe!
Developing storm slab over the freshly buried Feb 22 Surface hoar. In wind effected surface snow this layer will be more sensitive and prone to propagate. Human triggering of the fresh storm slab is likely.
Consistent moderate winds, gusting to extreme from the SW have formed slab in the alpine and wind effect can be expected at treeline. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Several large avalanches failing naturally on the basal facet/depth hoar have been observed in the last 14days. These are hard to predict, but are most likely in areas with a thin snowpack (~150cm) where the basal facets and depth hoar are prominent.
Consistent moderate winds, gusting to extreme from the SW have formed slab in the alpine and wind effect can be expected at treeline. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Wind slabs are widespread through the region with new and previous loading in lee features. Sensitivity will vary with local loading and wind patterns. Winds continue to blow strong.
Triggering could occur from shallow snowpack areas or from large loads such a cornice failure. The consequences of triggering will likely be severe!
Developing storm slab over the freshly buried Feb 22 surface hoar/ sun crust.&nbsp; Although the new slab is very soft, human triggering of the fresh storm slab is likely on steep features and in wind affected areas.
Recent moderate to strong SW winds have formed wind slabs in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;150cm) where the basal facets and depth hoar are prominent.
Recent moderate to strong SW winds have formed wind slabs in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Wind slabs are widespread through the region with new and previous loading in lee features. Sensitivity will vary with local loading and wind patterns. Triggering a wind slab has the potential to activate the deep persistent slab.
Triggering could occur from shallow snowpack areas or from large loads such a cornice failure. The consequences of triggering would be severe!
The storm slab is increasing in cohesiveness and thickness on top of the Feb 22 surface hoar/ sun crust. Human triggering of the fresh storm slab is likely on steep features and in wind affected areas.
Low density storm snow has a propensity to be triggered by short, intense solar inputs. Sunny breaks today could be just that trigger.&nbsp;
15-25cm of new snow paired with increasing&nbsp; SW-NW winds and through the forecast period will create reactive slabs in the alpine and treeline, especially in lee areas.
Wind slabs are widespread in the alpine with previous loading in lee features. Sensitivity will vary with local loading and wind patterns. Triggering a wind slab has the potential to activate the deep persistent slab.
Skier triggering could occur in shallow snowpacks or from large loads such a cornice failure. The consequences of triggering would be severe!
Buried wind slabs are present in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;150cm) where the basal facets and depth hoar are prominent.
Buried wind slabs are present in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so minimize your exposure to them when possible.
Slab properties in the storm snow have been slow to develop. Where slabs do exist, they overlie the Feb 22nd surface hoar. On steep solar aspects the surface hoar sits on a crust, and settled snow everywhere else.
&quot;Sluffing &quot;is likely in steep unsupported terrain on all aspects. If the sun stays out today, we should see several small loose dry avalanches on steep, rocky terrain features, on solar aspects.
Wind slabs are widespread in the alpine on lee and cross-loaded features. Triggering has the potential to initiate the deep persistent slab
Skier triggering could occur in shallow snowpack areas or from large loads such a cornice failure. The consequences of triggering would be severe!
Buried wind slabs are present in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so minimize your exposure to them when possible.
Wind slabs are present in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so watch your exposure to them carefully.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;150cm) where the basal facets and depth hoar are prominent.
Feb 22 surface hoar is a persistent weak layer down 30-40cm and overlies a thick crust on solar aspects. This layer is easily triggered where soft slabs have formed. Ongoing precipitation, wind and rising temperatures will increase slab properties.
Well defined wind effect and scouring in exposed areas at TL and the alpine. Triggering has the potential to initiate the deep persistent slab.
Skier triggering could occur in shallow snowpack areas or from large loads such a cornice failure. The consequences of triggering would be severe!
Wind slabs are present in lee areas of the high alpine. So far these are small but have been reported as a touch more reactive than yesterday.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;150cm) where the basal facets and depth hoar are prominent.
New wind slabs are forming in the alpine mainly in the lees of alpine terrain. They have been reported to be a touch more reactive than yesterday.
Feb 22 surface hoar is a persistent weak layer down 30-40cm that overlies a thick crust on solar aspects. It is easily triggered where soft slabs have formed, especially around tree line where the surface hoar is preserved and large.
Well defined wind effect and scouring in exposed areas at TL and the alpine. Triggering has the potential to initiate the deep persistent slab.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe!&nbsp; Caution traveling, skiing and climbing in Run out zones as avalanche have the potential to run full path
Wind slabs are present in lee areas of the alpine with isolated wind slabs down into treeline in some areas. These are small and generally stubborn but are present in more areas due to increased winds on Thursday.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;150cm) where the basal facets and depth hoar are prominent.
New wind slabs are forming in alpine lee areas. These are a little more widespread due to gusty SW winds on Thursday.
We are still seeing moderate wind transport as of Thursday, February 27th.
Feb 22 surface hoar is a persistent weak layer down 50-60cm that overlies a thick crust on solar aspects. Use extra caution on slopes that have not seen any activity since this layer was buried
20cm overnight on the 27th has formed fresh storm slab. More snow and warm temperatures today will promote slab formation and sensitivity to triggering
Triggering wind slab in shallow areas has the potential to initiate the deep persistent slab.
Up to 20cm of new snow forecasted for region Friday night. Keep an eye on how reactive this snow is when traveling through terrain. Triggering storm slab in shallow areas has the potential to initiate the deep persistent slab.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe! Caution traveling, skiing and climbing in run out zones as avalanche have the potential to run full path
New windslabs will develop overnight and through the day tomorrow with forecasted snow and moderate to strong SSW wind.&nbsp; These new slabs will overlie the older thin windslabs we have described on lee features.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
With snow and SSW wind forecasted Friday night, new wind slabs will form in the lees of features.. These overlie the previously described thin wind slabs that have been reactive in isolated loations.
30cm+ in the last 48hrs has formed fresh storm slab. The storm slab, where triggered, will likely overload the Feb 22nd surface hoar layer. This layer is susceptible to human triggering.
Feb 22 surface hoar is a persistent weak layer down 50-60cm that overlies a thick crust on solar aspects. This layer has been very active over the last 24hrs. This layer is susceptible to human triggering.
New wind slab development in the alpine and exposed areas at tree line. Expect these to be reactive to human triggering in the immediate lee of terrain features.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
New wind slab development in the alpine and exposed areas at tree line. Expect these to be reactive to human triggering in the immediate lee of terrain features and in steep gullies.
Triggering wind slab in shallow areas has the potential to initiate the deep persistent slab.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe! Caution traveling, skiing and climbing in run out zones as avalanche have the potential to run full path
Surface hoar buried on February 22nd is now a persistent weak layer down 60+cm.&nbsp; The surface hoar overlies a thick crust on solar aspects. This layer was active yesterday and remains susceptible to human triggering.
20+cm in the last 48hrs has formed fresh storm slab. The storm slab, where triggered, may step down to the Feb 22nd surface hoar layer.
Triggering wind slab in shallow areas has the potential to initiate the deep persistent slab.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe! Caution traveling, skiing and climbing in run out zones as avalanche have the potential to run full path
New wind slab development in the alpine and exposed areas at tree line. Expect these to be reactive to human triggering in the immediate lee of terrain features.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
New wind slab development in the alpine and exposed areas at tree line. Expect these to be reactive to human triggering in the immediate lee of terrain features and in steep gullies.
Surface hoar buried on February 22nd is now a persistent weak layer down 60+cm. The surface hoar overlies a thick crust on solar aspects. This layer was active yesterday and remains susceptible to human triggering.
Strong- Extreme winds this morning are building fresh windslabs in all open terrain. The wind slabs, where triggered, could step down to the Feb 22nd surface hoar layer.
Wind effect and windslab are common through the region with varied reactivity. Ridge tops and immediate lee features pose the most obvious hazard to triggering but anywhere with visible wind effect can pose a threat.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe! Caution traveling, skiing and climbing in run out zones as avalanche have the potential to run full path
New wind slab development in the alpine and exposed areas at tree line. Expect this problem to be reactive to human triggering where new loading exist.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
New wind slab development in the alpine and exposed areas at tree line. Expect these to be reactive to human triggering in the immediate lee of terrain features and in steep gullies.
Watch out for heavily loaded pockets near ridgetops or in cross loaded features.
Strong- Extreme winds have built windslabs in open terrain features on all aspects in the Alpine and exposed areas of TL and BTL. If triggered these wind slabs could step down to the Feb 22nd surface hoar layer.
The Feb 22nd SH is now buried 60+cm deep, which is a likely depth for skier triggering, especially in shallower snow pack areas. Steep solar aspects harbor a crust under the surface hoar layer, which can increase the sensitivity of triggering.
More snow and wind will add to the wind slab problem at tree line and above. As the problem develops we will likely see natural avalanches release out of steep leeward terrain.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
Wind effect and windslab are common through the region with varied reactivity. Ridge tops and immediate lee features pose the most obvious hazard to triggering but anywhere with visible wind effect can pose a threat.
New snow will need some time to settle and stabilize.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe! Caution traveling, skiing and climbing in run out zones as avalanche have the potential to run full path
More snow and wind will add to the wind slab problem at tree line and above. As the problem develops we will likely see natural avalanches release out of steep leeward terrain.
Strong- Extreme winds have built windslabs in open terrain features on all aspects in the Alpine and exposed areas of TL and BTL. If triggered these wind slabs have the potential to step down to the Feb 22nd surface hoar layer.
The Feb 22nd SH is now buried 60+cm deep, which is a likely depth for skier triggering, especially in shallower snow pack areas. Steep solar aspects harbor a crust under the surface hoar layer, which can increase the sensitivity of triggering.
Expect to find slab formation on lee aspects and open areas from the alpine to below tree line. Loose dry sluffing from steep terrain is also a concern, especially in gulleys, terrain traps and above cliffs.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
Wind effect and windslab are common through the region with varied reactivity. Ridge tops and immediate lee features pose the most obvious hazard to triggering but anywhere with visible wind effect can pose a threat.
New snow will need some time to settle and stabilize.
Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe! Caution traveling, skiing and climbing in run out zones as avalanche have the potential to run full path
Expect to find slab formation on lee aspects and open areas from the alpine to below tree line. Loose dry sluffing from steep terrain is also a concern, especially in gulleys, terrain traps and above cliffs.
Up to 35 mm of precipitation is expected  Friday pm into Saturday. This could translate to between 20 and 50cm of snow in Waterton park. Avoid avalanche terrain during periods of heavy loading and give new snow time to settle.
Watch out for heavily loaded pockets near ridgetops or in cross loaded features.
Windslabs in open terrain features on all aspects in the Alpine and exposed areas of TL and BTL. If triggered these wind slabs have the potential to step down to the Feb 22nd surface hoar layer.
The Feb 22nd SH is now buried 60+cm deep, which is a likely depth for skier triggering, especially in shallower snow pack areas. Steep solar aspects harbor a crust under the surface hoar layer, which can increase the sensitivity of triggering.
Expect to find wind &amp; storm slab formation on lee aspects and open areas from the alpine to below tree line. Loose dry sluffing from steep terrain is also a concern, especially in gulleys, terrain traps and above cliffs with ongoing wind &amp; snowfall.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
Expect to find wind and storm slab formation on lee aspects and open areas from the alpine to below tree line. Loose dry sluffing from steep terrain is also a concern, especially in gulleys, terrain traps &amp; above cliffs with ongoing snowfall &amp; wind.
20-30cm of new snow is predicted Thursday night into Friday creating a storm slab condition. The rapid loading will likely increase natural activity.
Wind effect and windslab are common through the region with varied reactivity. Increasing snow load will elevate the hazard in the short term.
The incoming new snow will need some time to settle and stabilize.
Recent wind has formed windslabs in open terrain features on all aspects in the Alpine and exposed areas of TL and BTL. If triggered these wind slabs have the potential to step down to the Feb 22nd surface hoar layer.
The Feb 22nd SH is now buried 60cm+ deep, which is a likely depth for skier triggering, especially in shallower snow pack areas. Steep solar aspects harbor a crust under the surface hoar layer, which can increase the sensitivity of triggering.
Expect to find wind &amp; storm slab formation on lee aspects and open areas from the alpine to below tree line. Loose dry sluffing from steep terrain is also a concern, especially in gulleys, terrain traps and above cliffs with ongoing wind &amp; snowfall.
Avalanche activity on the basal facets has slowed down but the weakness in the snowpack remains a concern. These are hard to predict, but are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
Expect to find wind and storm slab formation on lee aspects and open areas from the alpine to below tree line. Loose dry sluffing from steep terrain is also a concern, especially in gulleys, terrain traps &amp; above cliffs with ongoing snowfall &amp; wind.
Wind effect and windslab are common through the region with varied reactivity. Increasing snow load will elevate the hazard in the short term.
The incoming new snow will need some time to settle and stabilize.
Storm snow is hiding recently formed windslabs. Expect underlying windslab in open terrain features on all aspects in the Alpine and exposed areas of TL and BTL. If triggered these wind slabs have the potential to step down to the Feb 22nd SH layer.
The Feb 22 Surface Hoar layer is down 100cm+/- at treeline in the W end of the park and 50-80cm in the E. It is a likely depth for skier triggering, especially in shallower snow pack areas. Steep solar aspects harbor a crust under the SH layer.
Expect to find wind &amp; storm slab formation on lee aspects and open areas from the alpine to tree line. 10-15cm of fresh snow may cover these now making them more difficult to detect. Cornices should be considered suspect due to recent growth.
Sluffs will fail easily with skier traffic in steep terrain and are failing naturally in very steep terrain. Use caution in gully features or in cliffy terrain where these can have serious consequences.
With recent loading and smaller natural avalanche activity ongoing, the potential for avalanches on the basal facets is on the rise. These are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are prominent.
Wind effect and windslab are common through the region with some reactivity in the immediate lee.
Ice Climbers, be cautious in areas where loading has stressed the snowpack. Top outs and ledges may be particularity sensitive due to new snow and transport winds.
Little recent activity on this layer. More likely to initiate this layer in combination with accidently triggering a surface instability. 
Expect to find wind &amp; storm slab formation on lee aspects and open areas from the alpine to tree line. 10-15cm of fresh snow may cover these now making them more difficult to detect. Cornices should be considered suspect due to recent growth.
&nbsp; Sluffs will fail easily with skier traffic in steep terrain and are failing naturally in very steep terrain. Use caution in gully features or in cliffy terrain where these can have serious consequences.
20cm of new snow will form slabs in the alpine and treeline with moderate W winds. Dial back your terrain choices while the new snow settles out, and pay particular attention to sun exposed slopes above you - the March sun is packing a punch!
Loose dry avalanches will be prevalent out of steep rocky terrain, especially on solar aspects when the sun comes out. Ice climbers should pay particular attention to the consequence of a small avalanche coming from above.
Ice Climbers, be cautious in areas where loading has stressed the snowpack. Top outs and ledges may be particularity sensitive due to new snow and transport winds.
Wind effect and windslab are common through the region with some reactivity in the immediate lee.
Little recent activity on this layer. More likely to initiate this layer in combination with accidently triggering a surface instability.
Use caution when entering steep terrain. New storm slabs, and buried wind slabs exist in lee areas of the alpine and treeline. In steep solar terrain these may be sitting on a sun crust. Cornice exposure should be minimized due to recent growth.
Use caution when entering steep terrain. Soft new storm slabs are forming, and buried wind slabs are present in lee areas. In steep solar terrain these are sitting on buried sun crusts. Cornice exposure should also be minimized due to recent growth.
Recent snow has increased the load on the basal facets and we continue to see occasional results on this layer. Avalanches are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are the weakest.
The Feb 22 Surface Hoar/ sun crust layer is down ~100cm at TL in the W end of the park &amp; 50-80cm in the east. It's a likely depth for skier triggering in shallower snowpack areas. This problem is decreasing in probability but remains high consequence
Moderate to strong southerly winds this week have formed wind slabs in the alpine and exposed areas at treeline. If triggered, these wind slabs have the potential to step down to the Feb 22nd SH/ sun crust layer.
The Feb 22 Surface Hoar/ sun crust layer is down ~90cm at TL in the W end of the park &amp; 50-80cm in the east. It's a likely depth for skier triggering in shallower snowpack areas. This problem is decreasing in probability but remains high consequence
Unconsolidated new snow will be reactive to strong solar radiation, especially on steep, rocky features.
Moderate to strong southerly winds this week have formed wind slabs in the alpine and exposed areas at treeline. If triggered, these wind slabs have the potential to step down to the Feb 22nd SH/ sun crust layer.
This problem has transitioned from a storm slab. The wind is expected to pick up significantly on Tuesday, creating new wind slabs. Expect to find storm slabs in isolated areas as the wind increases.
Recent snow has increased the load on the basal facets and we continue to see occasional results on this layer. Avalanches are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are the weakest.
This problem has transitioned from a storm slab. The wind is expected to pick up significantly on Tuesday, creating new wind slabs. Storm slabs may slabs may linger in locations that dont see the wind.
Ice climbers be cautious in areas where loading has stressed the snowpack. Top outs and ledges may be particularity sensitive due to recent snow and transport winds.
Wind effect and windslab are common through the region with some reactivity in the immediate lee.
Little recent activity on this layer, more likely to initiate it from large loads such as cornice fall or from shallow snowpack areas.
20cm of recent snow will continue to form slabs in the alpine and treeline with 100km/h winds on Tuesday. Pay particular attention to slopes above you if the clouds part- the March sun is packing a punch!
Heavy snow fall and strong winds are forecasted for today. The developing storm slab problem will push the avalanche hazard higher throughout the day.
The February 22 Surface Hoar/ sun crust layer is down 70-110cm. Today's forecasted snowfall will add an additional load, bringing this layer closer to its tipping point. It's a likely depth for skier triggering in shallower snowpack areas.
It is possible to trigger a windslab in the immediate lee side of ridge crests, but unlikely these slabs will release naturally. Reports from today suggest the windslabs disappear once off the ridges and down onto more sheltered terrain below.
This problem is the sleeping giant who remains asleep right now until a significant change wakes the giant up again. Avalanches are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are the weakest.
Widespread wind effect in the alpine with today's wind event. Windslabs continue to build lower down in lee start zones and in cross loaded features.
Ice climbers be cautious in areas where loading has stressed the snowpack. Top outs and ledges may be particularity sensitive due to recent snow and transport winds.
Little recent activity on this layer: initiating this layer is more likely from large loads such as cornice fall or from shallow snowpack areas.
Additional snow and wind overnight on Tuesday has created localized windslabs that can be triggered by humans but seems unlikely to release naturally in the absence of a trigger. Careful route finding to get off ridges and onto smooth slopes.
25-30cm of new snow with mod/strong winds has created a widespread storm slab. Lee and cross-loaded features at upper elevations will shed this new layer easily. Unsupported slopes/terrain traps below tree-line should be treated with respect today!
The February 22 Surface Hoar/ sun crust layer is down 90-130cm. It's possibly for skier-triggering in shallower snowpack areas, but otherwise this layer will take a bigger trigger to be activated (ex avalanche in the storm slab).
It is possible to trigger a windslab in the immediate lee side of ridge crests, but unlikely these slabs will release naturally. Reports from today suggest the windslabs disappear once off the ridges and down onto more sheltered terrain below.
This problem is the sleeping giant who remains asleep right now until a significant change wakes the giant up again. Avalanches are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are the weakest.
Additional snow and wind overnight on Tuesday has created localized windslabs that can be triggered by humans but seems unlikely to release naturally in the absence of a trigger. Careful route finding to get off ridges and onto smooth slopes.
Widespread wind effect in the alpine.
Ice climbers be cautious in areas where loading has stressed the snowpack. Top outs and ledges may be particularity sensitive due to recent snow and transport winds.
2 Large avalanches observed today on this layer from past 24 hours. Initiating this layer is more likely from large loads such as cornice fall or from shallow snowpack areas.
25-30cm of recent storm snow with mod/strong winds has created a widespread storm slab. Lee and cross-loaded features at upper elevations will shed this new layer easily. Unsupported slopes/terrain traps below tree-line should be avoided.
The February 22 Surface Hoar/ sun crust layer is down 90-130cm. It's possibly for skier-triggering in shallower snowpack areas, but otherwise this layer will take a bigger trigger to be activated.
It is possible to trigger a wind slab in alpine and treeline features exposed to the wind, especially at ridge top. Forecast E/SE winds could mean reverse loading on ridge crests.&nbsp;
This problem is the sleeping giant who remains asleep right now until a significant change wakes them up again. Avalanches are most likely in areas with a thin snowpack (&lt;130cm) where the basal facets and depth hoar are the weakest.
Previous winds have created what have &quot;so far&quot; been stubborn wind slabs in alpine lees and isolated treeline features.  Increased Easterly winds Friday could develop wind slabs on slopes that are usually winward.
The wind slabs which formed earlier in the week appear to be bonding well. The forecasted new snow for Friday may well form weakly bonded wind slabs with the dramatic temperature drop and easterly winds.
There is significant loose snow clinging to rock faces and in steep alpine features. Forecasted new snow will add to this.Triggering of this snow includes wind and solar radiation. Once off and running the debris may trigger deeper instabilities.
2 Large avalanches were observed on March 11th. Initiating this layer is more likely from large loads such as cornice fall or from shallow snowpack areas. In the valley bottom the snowpack is less consolidated with less chance of large releases.
Lots of snow, lots of wind, a widespread natural avalanche cycle is expected.
Where there is no slab, expect sluffing in steep terrain.
30cm of recent snow with mod/strong winds has created a widespread storm slab. Unsupported slopes and terrain traps should be avoided. Lee and cross-loaded features will be more reactive due to the wind further promoting slab formation in these areas
The February 22 surface hoar/sun crust layer is down 90-130cm. Skier-triggering is possible in shallower areas but otherwise this layer will take a bigger trigger to be activated such as a storm slab stepping down or large load impacting the slope.
Recent snow and west winds had developed stubborn slabs at ridge crest however Thursday evening winds shifted to the N and E and are expected to increase Saturday. Expect a different loading pattern than is usual.
Use caution in thin snowpack areas averaging 150cm or less. In these areas, the basal snowpack consisting of depth hoar and facets remains weak and the overlying mid and upper snowpacks are thin enough to allow for triggering.
New wind slabs forming with mod NE winds today. Previous WSL in the week appear to be bonding well. Tightening/brittle with frigid temps
There is significant loose snow clinging to rock faces and in steep alpine features. Triggering of this snow includes human, wind and solar radiation.
2 Large avalanches were observed on March 11th. Initiating this layer is more likely from large loads such as cornice fall or from shallow snowpack areas. In the valley bottom the snowpack is less consolidated with less chance of large releases.
Recent snow and west winds had developed stubborn slabs at ridge crest however Thursday evening winds shifted to the N and E and are expected to increase Saturday. Expect a different loading pattern than is usual.
Strong N-NE winds are building fresh windslabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The February 22 surface hoar/sun crust layer is down 90-130cm. Skier-triggering is possible in shallower areas but otherwise this layer will take a big trigger to be activated such as a small avalanche stepping down or large load impacting the slope.
New wind slabs forming with Strong NE winds past 36 hrs. This, in combination with basal facet issue, are producing random large destructive avalanches. 
Several natural large avalanches observed today due to the combination of rapid wind loading initiating basal facets or reloaded bed surfaces.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Mnt Athabasca ramp route ran size 3.5 today.  Impressive avalanche running into the rock basin below.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas, the basal snowpack layer of depth hoar and facets remains weak and the overlying mid and upper snowpacks are thin enough to allow for triggering of the deep persistent layer.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
With temperatures rising rapidly this afternoon, loose snow may become reactive on steep solar aspects.
Daytime warming will increase the sensitivity of the wind slabs that formed during yesterdays strong N-NE winds. These may overlie a suncrust on steep solar aspects and possibly small surface hoar on shaded slopes.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The February 22 surface hoar/sun crust layer is down 90-130cm. Skier-triggering is possible in shallower areas but otherwise this layer will take a big trigger to be activated such as a small avalanche stepping down or large load impacting the slope.
Previous NE winds reverse loaded alpine features North of Sask x'ing. More evident in the North bulletin area. This, in combination with basal facet issue produced a few random large destructive avalanches yesterday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Several natural large avalanches observed yesterday due to the combination of rapid wind loading initiating basal facets or reloaded bed surfaces.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Mnt Athabasca ramp route ran size 3.5. Impressive avalanche running into the rock basin below.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas, the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
We expect to start seeing some wet loose avalanche activity on steep rocky solar slopes in the next couple days. Watch for these as possible triggers on the slopes below, and minimize exposure to this in steep gullies or on ice climbs.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain.
We expect to start seeing some wet loose avalanche activity on steep rocky solar slopes in the next couple days. Watch for these as possible triggers on the slopes below, and minimize exposure to this in steep gullies or on ice climbs.
With temperatures rising rapidly today, the snow on solar slopes that is crusty in the morning may loose cohesion and become reactive in the afternoon.
Daytime warming will increase the sensitivity of the wind slabs that formed during the weekends strong N-NE winds. These may overlie a suncrust on steep solar aspects and possibly small surface hoar on shaded slopes.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The February 22 surface hoar/sun crust layer is down 90-130cm. Skier-triggering is possible in shallower areas but otherwise this layer will take a big trigger to be activated such as a small avalanche stepping down or large load impacting the slope.
Previous NE winds reverse loaded alpine features North of Sask x'ing. More evident in the North bulletin area. This, in combination with basal facet issue produced a few random large destructive avalanches yesterday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Several natural large avalanches observed yesterday due to the combination of rapid wind loading initiating basal facets or reloaded bed surfaces.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Mt Athabasca ramp route ran size 3.5. Impressive avalanche running into the rock basin below.
This problem is specific to Tuesday.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain.
The snow on solar slopes that was crusty in the morning, will loose cohesion as temperatures rise and become reactive in the afternoon.
This layer has become mostly dormant, but skier triggering may still be possible in shallower snowpack areas.
Potential for old lingering wind slabs</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Winds have calmed to the Light range. Katabatic winds (Glacier outflow) will produce localized wind slabs. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Potential to wake up with day time warming on solar aspects
Large triggers may wake up this layer IE: Cornices in combination with day time warming
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain.
The snow on slopes facing the sun will become moist this afternoon.  Use caution on steep terrain and around terrain traps.
This layer has become mostly dormant, but skier triggering may still be possible in shallower snowpack areas.
This problem will require a large trigger, thin spots or rapid day time warming.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain.
The snow on slopes facing the sun will become moist this afternoon. Use caution on steep terrain and around terrain traps.
This layer has become mostly dormant, but skier triggering may still be possible in shallower snowpack areas.
This problem will require a large trigger, thin spots or rapid day time warming.
Recent snow and variable wind directions (SW, N and E) have developed wind slabs in lee areas on a variety of aspects. These are beginning to bond but use caution if you encounter them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Strong spring sun paired with rising freezing levels will produce loose avalanches. Start the day early and be mindful of what is above you.
Recent snow and variable wind directions have developed wind slabs in lee areas on a variety of aspects. Though these are hard to trigger remain cautious of them if you're pushing out into more committing terrain.
Moist snow has the potential to release due to the heat of the sun, entraining slopes below
This problem will require a large trigger, thin spots or rapid day time warming.
Recent snow and&nbsp; winds from variable directions have developed wind slabs in lee areas on a variety of aspects. These are generally small but remain possible to trigger.&nbsp; Use caution with them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Recent snow and  winds from variable directions have developed wind slabs in lee areas on a variety of aspects. These are generally small but remain possible to trigger and require some caution in steep or committing terrain. 
Moist snow has the potential to release due to the heat of the sun, entraining slopes below
As the snow falls, it will be sitting on a variety of surfaces, from Melt freeze crusts to Scoured wind hammered and sastrugi. The bond will depend on the temperatures during the storm.
This problem will require a large trigger, thin spots, increased loading or rapid day time warming.
Recent snow and winds from variable directions have developed wind slabs in lee areas on a variety of aspects. These are generally small but remain possible to trigger. Use caution with them in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Recent snow and winds from variable directions have developed wind slabs in lee areas on a variety of aspects. These are generally small but remain possible to trigger and require some caution in steep or committing terrain.
Moist snow has the potential to release due to the heat of the sun, entraining slopes below
As the snow falls, it will be sitting on a variety of surfaces, from Melt freeze crusts to Scoured wind hammered and sastrugi. The bond will depend on the temperatures during the storm.
This problem will require a large trigger, thin spots, increased loading or rapid day time warming.
Incoming snow and moderate to strong SW winds Monday will create fresh wind slabs in lee areas at treeline and above. These will be possible to trigger by skiers. Avoid wind loaded areas in steep terrain, especially in thin snowpack areas.
Use caution in thin snowpack areas averaging 150cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak, and the mid and upper snowpack is thin enough to allow for triggering of the deep persistent layer.
Incoming snow and moderate to strong SW winds Monday will create fresh wind slabs in lee areas at treeline and above. These will be possible to trigger by skiers. Avoid wind loaded areas in steep terrain.
New snow and moderate winds have created small fresh wind slabs in lee areas in the alpine. These will be possible to trigger by skiers. Avoid wind loaded areas in steep terrain, especially in thin snowpack areas or narrow gullies.
Use caution in thin snowpack areas averaging 150 cm or less. In these areas the basal snowpack layer of depth hoar and facets remains weak. This has been unreactive for the last week but is still a concern in steep terrain.
New snow and moderate winds have created small fresh wind slabs in lee areas in the alpine. These will be possible to trigger by skiers. Avoid wind loaded areas in steep terrain, especially in narrow gullies.
New snow paired with moderate west winds will form windslabs. The timing of the incoming precipitation is uncertain so keep a close eye on what the weather is doing over the next few days.
Sunny skies on Thursday means loose avalanches on solar aspects. Watch for the obvious signs of moist surface snow and pinwheeling, and avoid overhead hazard, especially where cornices are involved (think Mt. Bertha).
Possibility new snow with varied consistency depending on elevation. Slabs may be limited to TL elevations but depends on condition of old surface, which is quite varied across the region.
This problem will require a large trigger, thin spots, increased loading or rapid day time warming.
Thin storm slabs will be present in immediate lee areas at ridge crest and on open, cross-loaded features. Storm slabs will pop quickly on solar aspect crusts.
Possibility new snow with varied consistency depending on elevation. Slabs may be limited to TL elevations but depends on condition of old surface, which is quite varied across the region.
This problem will require a large trigger, thin spots, increased loading or rapid day time warming.
Thin storm slabs will be present in immediate lee areas at ridge crest and on open, cross-loaded features. Storm slabs will pop quickly on solar aspect crusts.
Increasing wind from the West on Thursday will create new wind slabs in alpine lee areas.
10-15cm of new snow in the past 48 hrs appears to be bonding well to layers below. At ridge tops and on solar slopes, where crusts may be buried, this problem is of most concern.
The mid snowpack is consolidating and offers bridging strength over a weak&nbsp; base. Caution is needed in areas where the snowpack is thin.  Collapsing cornices may trigger this weakness unleashing large avalanches.
Increasing wind from the West on Thursday will create new wind slabs in alpine lee areas.