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</style><p class="p_CC664AAA"><span class="s_3FE45715">There are no new reports of avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Friday. On Thursday, explosives triggered a few size 1 avalanches as well as a cornice on a northeast aspect at 2400 m elevation. On Wednesday, ski cutting and explosives triggered storm slabs and wind slabs up to size 1.5 on north and northeast aspects at treeline and in the alpine. These were 10-40 cm thick. No new natural avalanches have been reported since Tuesday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, lingering wind slabs which formed on Thursday are the main concern. These lingering wind slabs may be hidden under 10-20 cm of low density snow from Friday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">There still remains some concern regarding the mid-December interface that was buried last week. It appears that in most places the recent storm snow remains relatively low density and has not formed a slab over this interface. The primary areas where this layer has been reactive over the last week is in wind loaded areas. However, I would continue to watch for signs that a more widespread slab problem is developing in areas that have not been affected by wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, a skier remotely triggered a size 2 wind slab and cornice from 2 m away on a north aspect at 2300 m elevation in the Dogtooth. The slab was 10-50 cm thick and propagated 125 m wide. Explosive testing in the west of the region produced one size 1.5 loose dry avalanche and one non-result.  On Thursday, a natural size 1.5 storm slab avalanche was reported on a northwest aspect at 2400 m elevation. Explosives also released wind slabs size 1-2 which were typically 30 cm thick and ski cutting produced loose dry avalanches up to size 1.5. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, lingering wind slabs which formed on Thursday are the main concern. These lingering wind slabs may be hidden under 10-20 cm of low density snow from Friday.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_3FE45715">There still remains some concern regarding the mid-December interface that was buried last week. It appears that in most places the recent storm snow remains relatively low density and has not formed a slab over this interface. The primary areas where this layer has been reactive over the last week is in wind loaded areas.  However, I would continue to watch for signs that a more widespread slab problem is developing in areas that have not been affected by wind.</span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The most recent snow produced several natural size 1.5 avalanches on Saturday, and explosive triggers have continued to release larger (up to size 2.5) avalanches running on weak sugary facets between 40 and 100 cm deep. Wind slabs remain the primary concern for human-triggering, as they sit above weak sliding layers and will continue to build with the new supply of loose snow. Persistent slabs releasing on weak layers that formed in early December are also becoming a concern. The recent explosive results suggest these layers could potentially wake up with extra loading from new snow or wind, or possibly be triggered in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Friday or Saturday. However, skiers in Kananaskis Country remotely triggered a size 2 avalanche from 35 m away on Friday. The avalanche was a wind slab over a weaker facets, which closely resembles snowpack conditions in the South Rockies. Over the past week, wind slabs up to size 2 have been reported, and will likely continue to be sensitive to human-triggers on wind-affected features due to the weak snow beneath. In the southeast corner of the region, explosives have recently triggered several larger persistent slab avalanches running on weak facets near the ground, and these layers may be possible for humans to trigger in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Ski cuts and skier traffic in steep and lee loaded features continue to produce size 1 avalanches in wind slab. Reports from Wednesday in the region showed explosives triggering wind slabs up to size 1.5 in the alpine. No new natural avalanches have been reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">While recent reports point only to new snow sluffing easily in steep terrain, continued potential exists for skier and rider triggering of wind slabs at upper elevations. The possibility of buried surface hoar in isolated sheltered areas and a possible weak bond at the storm/old snow interface also demand careful evaluation.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs continued to be reactive on Friday, as reports included a rider-triggered size 2 soft slab on a north aspect at treeline and numerous explosive-triggered size 1.5-2.5 avalanches on east and northeast aspects. More reports confirm a large natural avalanche cycle producing up to size 3 avalanches occurred during last week's storm. In the northern part of the region where the snowpack is thinner, skiers have remotely triggered several size 1.5-2 deep persistent slab avalanches in steep shallow start zones (failing on weak sugary facets near the ground). With winds picking up on Sunday, expect wind slabs to remain touchy.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs have been very touchy in areas with thin snowpacks, as several size 1.5-2 avalanches have been remotely triggered the past few days. The avalanches have released on weak facets near the ground in steep shallow start zones. Remote triggering is a sign of a serious weakness deep in the snowpack and indicates that persistent slab avalanches may be triggered with very light loads. Also, strong winds with new snow will continue to develop wind slabs throughout the region on Sunday. Overall, human triggering remains likely, especially in terrain that has not been heavily ridden.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday and Saturday, a few natural size 2-2.5 wind slab avalanches were observed in Glacier National Park in steep terrain features on north and northwest aspects at 2500-2700 m elevation. On Friday, a skier triggered a size 1 storm slab avalanche on a northwest at 1800 m elevation in the east of the region. This was a 40 cm thick slab which failed on the mid-December interface. On Thursday, a natural cornice release was reported on a north aspect at 2200 m but it did not trigger a slab on the slope below. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, lingering wind slabs which formed on Thursday are the main concern. These lingering wind slabs may be hidden under 10-20 cm of low density snow from Friday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">There still remains some concern regarding the mid-December interface that was buried last week. It appears that in most places the recent storm snow remains relatively low density and has not formed a slab over this interface. The primary areas where this layer has been reactive over the last week is in wind loaded areas. However, I would continue to watch for signs that a more widespread slab problem is developing in areas that have not been affected by wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Friday but two small whumpfs occurred under wind slabs which were 20 cm thick. On Thursday, ski cutting triggered two size 1 cornices. These did not trigger slabs on the slopes below. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, lingering wind slabs which formed on Thursday are the main concern. These lingering wind slabs may be hidden under 10-20 cm of low density snow from Friday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">There still remains some concern regarding the mid-December interface that was buried last week. It appears that in most places the recent storm snow remains relatively low density and has not formed a slab over this interface. The primary areas where this layer has been reactive over the last week is in wind loaded areas. However, I would continue to watch for signs that a more widespread slab problem is developing in areas that have not been affected by wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Explosives control in the south of the region on Saturday produced several size 2 avalanches with crown depths up to 20cm. Friday's observations included a natural size 1 avalanche releasing storm snow above the December 18 interface in steep northwest-facing alpine terrain. Observations from earlier in the week include wind slab avalanches triggered from explosives control running on the same storm/old snow interface to size 2 at treeline and above. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Conditions were somewhat obscured on Saturday but we were able to see a few loose dry avalanches up to sz 2 that ran into skiable terrain.  We suspect that there are some new slab avalanche occuring in alpine areas but we were unable to confirm this due to the visibility.  </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There are no new reports of avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, a couple natural size 1 storm slab avalanches were reported from northeast and east aspects at 2250 m elevation. These were 15 cm thick slabs. Solar triggered size 1 avalanches were also reported from steep southeast facing terrain in the alpine. No new avalanches were reported on Friday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, it is possible that new wind slabs may develop in the afternoon as the wind increases. Old stubborn wind slabs may still be lingering from the strong wind that ended Friday morning and could be hiding under 10-20 cm of low density snow from Saturday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, explosives triggered several storm slab avalanches up to size 3 in the Dogtooth. These were 20-60cm thick slabs and up to 125 m wide. A skier was also fully buried on Saturday outside the ski area boundary. Check out the MIN post for more details. On Friday, a skier remotely triggered a size 2 wind slab and cornice from 2 m away on a north aspect at 2300 m elevation in the Dogtooth. The slab was 10-50 cm thick and propagated 125 m wide. Explosive testing in the western part of the region produced one size 1.5 loose dry avalanche and one non-result on Friday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, it is possible that new wind slabs may develop in the afternoon as the wind increases. Old stubborn wind slabs may still be lingering from the strong wind that ended Friday morning and could be hiding under 10-20 cm of low density snow from Saturday. In the Dogtooth range, a persistent slab problem may exist with the snow from the past week continuing to settle into a slab over the mid-December weak layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The most recent low density snow produced several natural and explosive triggered size 1.5-2 avalanches over the weekend. Last week, explosive triggers released several larger avalanches (up to size 2.5) running on weak sugary facets between 40 and 100 cm deep.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs remain the primary concern for human-triggering, as they sit above weak sliding layers and will continue to build as winds pick up throughout Monday. Persistent slabs releasing on weak layers that formed in early December are also becoming a concern. The recent explosive results suggest these layers could potentially wake up with extra loading from new snow or wind, or possibly be triggered in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, ski cutting produced size 1 loose dry avalanches in the new low density snow. Skiers in Kananaskis Country remotely triggered a size 2 avalanche from 35 m away on Friday. The avalanche was a wind slab over a weaker facets, which closely resembled snowpack conditions in the South Rockies.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Triggering persistent slab avalanches on weak interfaces that formed in early December are the primary concern. Triggering these layer is most likely in wind-affected terrain where the weak layers are covered by hard wind slabs. In the southeast corner of the region, explosive results suggest there are also weak facets near the ground that may be possible to trigger from thinner snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports include a natural size 2 cornice release from an northwest aspect in the upper Soo area. Ski cuts and skier traffic continue to produce size 1 avalanches in isolated pockets of wind slab as well as size 1 loose dry avalanches in steep terrain. A MIN report from Saturday in the Pemberton Icefield area neatly demonstrates the potential for wide slab propagations on wind loaded features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued potential exists for skier and rider triggering of wind slabs at upper elevations. The possibility of buried surface hoar in isolated sheltered areas and a possible weak bond at the storm/old snow interface also demand careful evaluation. A MIN report from Saturday in the Pemberton Icefield area neatly demonstrates the potential for wide slab propagations on wind loaded features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported in the southern part of the region on Saturday. In the northern part of the region, a size 3 avalanche was triggered with explosives. This avalanche failed on weak facets at the base of the snowpack, the same layer that skiers were remotely triggering avalanches on earlier in the week.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, the new snow will form very touchy storm slabs. Storm slabs will be extra reactive in sheltered areas where they are burying a new surface hoar layer. The additional load of the new snow may also reawaken persistent weak layers buried about 1 metre deep. These layers produced large natural avalanches during last week's storm, and now there's some uncertainty as to how reactive they'll be during this storm. If they do release, the resulting avalanches will be very large and destructive.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs have been very touchy in areas with thin snowpacks. Over the past few days, several size 1.5-2 avalanches have been remotely triggered by skiers in the northern part of the region, and a size 3 persistent slab was triggered with explosives on Saturday. These avalanches have released on weak facets near the ground in steep shallow start zones. Remote triggering is a sign of a serious weakness deep in the snowpack and indicates that persistent slab avalanches may be triggered with very light loads.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, the new snow will form reactive wind slabs. Wind slabs may be extra touchy in areas where they are burying a newly formed surface hoar layer. The additional load of the new snow will also make it possible to trigger weak layers deeper in the snowpack and produce large persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, a natural size 3 avalanche was reported in the east Selkirks on a southeast aspect at 3000 m elevation. On Friday and Saturday, a few natural size 2-2.5 wind slab avalanches were observed in Glacier National Park in steep terrain features on north and northwest aspects at 2500-2700 m elevation. On Friday, a skier triggered a size 1 storm slab avalanche on a northwest at 1800 m elevation in the east Selkirks. This was a 40 cm thick slab which failed on the mid-December interface. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, it is possible that new wind slabs may develop in the afternoon as the wind increases. Old stubborn wind slabs may still be lingering from the strong wind that ended Friday morning and could be hiding under 10-20 cm of low density snow from Saturday. In the eastern Selkirks, the mid-December interface may be more reactive than the rest of the region where it is now considered dormant.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Friday or Saturday.&nbsp; On Friday, two small whumpfs were felt under wind slabs which were 20 cm thick. On Thursday, ski cutting triggered two size 1 cornices. These did not trigger slabs on the slopes below. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, it is possible that new wind slabs may develop in the afternoon as the wind increases. Old stubborn wind slabs may still be lingering from the strong wind that ended Friday morning and could be hiding under 10-20 cm of low density snow from Saturday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Explosives control in the north and south of the region on Saturday produced several size 1-2 avalanches with crown depths up to 15cm. Most size 1 results were running as loose dry avalanches. Friday's observations included a natural size 1 avalanche releasing above the December 18 storm snow interface in steep northwest-facing alpine terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Ski cutting in the North Shore mountains has exposed a weakness about 5cm deep in the new snow. Watch for reactivity at this layer and our current surface as forecasted snowfall begins to pile up.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were reports of a few very soft slabs failing over steep rolls on Sunday. These avalanches occurred in response to locally moderate amounts of new snowfall on Saturday. Of note, there was a a size 2 persistent slab avalanche triggered on an east facing alpine feature on the north side of the highway in Roger's Pass. The avalanche, which was reported to have failed on the mid-December weak layer, was remotely triggered from a distance of 30 metres. Although this seemingly isolated avalanche occurred in a different forecast region, this event may point to a pattern of increased activity on the mid-December layer which may also extend into the South Columbia region. With new snow and strong winds forecast for Monday night and Tuesday, I'd also expect new wind slab activity in higher elevation terrain on Tuesday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, explosives triggered several storm slab avalanches up to size 3 in the Dogtooth. These were 20-60cm thick slabs and up to 125 m wide. A skier was also fully buried on Saturday outside the ski area boundary. Check out the MIN post for more details. On Friday, a skier remotely triggered a size 2 wind slab and cornice from 2 m away on a north aspect at 2300 m elevation in the Dogtooth. The slab was 10-50 cm thick and propagated 125 m wide. Explosive testing in the western part of the region produced one size 1.5 loose dry avalanche and one non-result on Friday. With new snow and strong winds forecast for Monday night and Tuesday, I'd also expect new wind slab activity in higher elevation terrain on Tuesday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The recent low density snow produced numerous size 1-1.5 avalanches on Monday. These included loose dry avalanches releasing naturally and soft slabs triggered by skiers. Last week, explosive triggers also released several larger avalanches (up to size 2.5) running on weak sugary facets between 40 and 100 cm deep.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs remain the primary concern for human-triggering, as strong winds are forecasted to persist throughout the week and redistribute the low density storm snow. Persistent slabs releasing on weak layers that formed in early December are also becoming a concern, although there is some uncertainty as to how reactive they'll be. Recent explosive results suggest these layers could potentially wake up with extra loading from new snow or wind, or possibly be triggered from shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche reports over the weekend were limited to small loose dry avalanches triggered by ski cutting and a natural size 1.5 cornice fall. On Friday, skiers in Kananaskis Country remotely triggered a size 2 avalanche from 35 m away on a wind slab over a weak layer of facets, which resembles snowpack conditions in the South Rockies.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Fresh wind slabs will be the primary concern on Tuesday, with the incoming storm bringing new snow and strong winds. However, larger avalanches releasing on deeper persistent weak layers remain possible to trigger, particularly in previously wind-affected terrain. In the southeast corner of the region, recent explosive results suggest there are also weak facets near the ground that may be possible to trigger from thinner snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports include a natural size 2 cornice release from an northwest aspect in the upper Soo area. Ski cuts and skier traffic continue to produce size 1 avalanches in isolated pockets of wind slab as well as size 1 loose dry avalanches in steep terrain. A MIN report from Saturday in the Pemberton Icefield area neatly demonstrates the potential for wide slab propagations on wind loaded features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Continued potential exists for skier and rider triggering of wind slabs at upper elevations. The possibility of buried surface hoar in isolated sheltered areas and a possible weak bond at the storm/old snow interface also demand careful evaluation. A MIN report from Saturday in the Pemberton Icefield area neatly demonstrates the potential for wide slab propagations on wind loaded features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, skiers in the northern parts of the region remotely triggered several size 2 avalanches that failed on weak facets at the base of the snowpack. This has been a regular occurrence in areas with thinner snowpacks. In the south where the snowpack is thicker, there have been no recent avalanche reports. However, observations were very limited over the holiday weekend and visibility was poor on Monday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, expect the new snow to form touchy storm slabs, particularly on wind-loaded terrain features. Storm slabs may be extra reactive in sheltered areas where they are burying a new surface hoar layer The additional load of the new snow may also reawaken persistent weak layers buried about 1 metre deep. These layers produced large natural avalanches during last week's storm, and now there's some uncertainty as to how reactive they'll be during this storm. If they do release, the resulting avalanches will be large and destructive.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slabs have been very touchy in areas with thin snowpacks. Over the past few days, several size 1.5-2 avalanches have been remotely triggered by skiers in the northern part of the region, and a size 3 persistent slab was triggered with explosives on Saturday. These avalanches have released on weak facets near the ground in shallow start zones. Remote triggering is a sign that a persistent weakness exists deep in the snowpack and can be triggered with very light loads.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, new snow throughout the region will form reactive wind slabs. Wind slabs may be extra touchy in areas where they are burying a new layer of surface hoar. The additional load of the new snow will also make it possible to trigger weak layers deeper in the snowpack and release large persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A Mountain Information Network post from the Adamant Range on the eastern side of the Selkirks indicated several avalanches failing on the mid-December weak layer. The avalanches were in the size 1-2.5 range and were failing under light loads, in some cases naturally or remotely. A size 2 slab avalanche was also triggered on an alpine slope on Video Peak in Glacier National Park. The avalanche was triggered remotely from a distance of 30 metres. With new snow and strong winds forecast for Monday night and Tuesday, I'd also expect new wind slab activity in higher elevation terrain on Tuesday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported. With new snow and strong winds forecast for Monday night and Tuesday, I'd expect new wind slab activity in higher elevation terrain on Tuesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Explosives control in the north and south of the region on Saturday produced several size 1-2 avalanches with crown depths up to 15cm. Most size 1 results were running as loose dry avalanches and all results were releasing above the December 18 storm snow interface . Friday's observations included a natural size 1 avalanche in steep northwest-facing alpine terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new today</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Ski cutting in the North Shore mountains on Saturday exposed a weakness about 5cm deep in our previous storm snow. Watch for reactivity at this layer and at the new snow interface as forecast snowfall piles up.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported at the time of publishing this bulletin on Tuesday. I'm sure there was some natural wind slab activity in response to new snow and wind on Monday night. Continued strong ridgetop winds on Wednesday should promote ongoing wind slab activity. For the short term, I also expect loose dry avalanches to be triggered easily in steep sheltered terrain. Of note, on Christmas day there was size 2 persistent slab avalanche triggered on an east facing alpine feature on the north side of the highway in Roger's Pass. The avalanche, which was reported to have failed on the mid-December weak layer, was remotely triggered from a distance of 30 metres. On Monday, a second size 2 avalanche was triggered by a ski touring party on a southwest facing alpine feature on the south side of the highway in Rogers Pass. The avalanche, which is also thought to have also failed on the mid-December interface, resulted in a partial burial and multiple injuries. Although these seemingly isolated avalanches occurred in a different forecast region, these events may point to a pattern of increased activity on the mid-December layer which may also extend into the South Columbia region.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were no new reports of avalanche activity on Tuesday. An ACMG Mountain Conditions Report from Christmas day describes a slab avalanche failing on a steep, north facing slope at 2100m. The avalanche initially failed 40cm down from the surface, and then stepped down 110cm to the November crust. The size of the avalanche is unknown, but this speaks to the touchy nature of persistent slabs in the area. On Christmas eve, a skier was partially buried in a size 2 slab avalanche while skinning up a northeast facing slope at about 2000m. The failure plane of this avalanche is unknown although the depth (40cm) suggests the mid-December weak layer may have been the culprit. Check out the Mountain Information Network post for more details.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, new storm snow produced numerous size 1.5-2 avalanches, including natural and skier-triggered loose dry avalanches on north and east aspects.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs will become the primary concern for human-triggering on Wednesday, with winds forecast to increase. Loose dry avalanches will also be likely in steep features sheltered from the wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, ski cutting produced a size 2 wind slab in the most recent storm snow. Natural loose dry avalanches up to size 1.5 have also been reported out of steep terrain the past few days.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Fresh wind slabs will be the primary concern on Wednesday, as strong winds will dramatically redistribute the new low density snow. Larger avalanches releasing on deeper persistent weak layers remain possible to trigger, particularly in shallow or previously wind-affected terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, explosives and ski cutting produced soft slab avalanches up to size 1.5 which were confined to the new storm snow. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, wind slabs are expected to be the main concern. Ongoing strong southerly winds are redistributing the 20-30 cm of new snow from Tuesday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported from the region in several days. On Wednesday, wind slabs are expected to be the primary concern. Ongoing strong southerly winds are expected to be redistributing the 10-20 cm of new snow from Tuesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche reports from Monday are limited due to poor visibility during the storm. A few natural storm slabs up to size 2 were reported on north aspects during the storm, and a widespread natural cycle likely occurred on Monday night when snowfall was the heaviest and temperatures dramatically increased.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Expect storm slabs to remain touchy on Wednesday, especially on wind-loaded terrain features where slabs will continue to grow. The additional load of the new snow may also reawaken persistent weak layers buried 100-150 cm deep. These layers produced large natural avalanches during last week's storm, and now there's some uncertainty as to how reactive they'll be after the most recent loading. If they do release, the resulting avalanches will be large and destructive.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, a skier remote triggered a size 1.5 wind slab in the Hankin area on a north aspect at treeline (see MIN report). They also reported a whumpfing caused by collapsing facets at the bottom of the snowpack. Over the weekend, numerous size 1.5-2 avalanches were remote triggered in the northern parts of the region, also releasing on weak facets near the ground.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs will remain touchy throughout the week, as sustained winds will redistribute the new low density snow. The additional load of new snow will also keep deeper persistent weak layers reactive, making it possible to trigger larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A Mountain Information Network post from the Adamant Range on the eastern side of the Selkirks indicated several avalanches failing on the mid-December weak layer throughout last week. The avalanches were in the size 1-2.5 range and were failing under light loads, in some cases naturally or remotely. On Christmas Day, there was another MIN post where a size 2 slab avalanche was triggered on an alpine slope on Video Peak in Glacier National Park. The avalanche, which was thought to have failed on the mid-December layer, was triggered remotely from a distance of 30 metres. Both of these avalanches point to the potentially touchy nature of the mid-December layer in some areas. No new avalanches were reported at the time of publishing this bulletin on Tuesday. I'm sure there was some natural wind slab activity in response to new snow and wind on Monday night. Continued strong ridgetop winds should promote ongoing wind slab activity. For the short term, I also expect loose dry avalanches to be triggered easily in steep sheltered terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported at the time of publishing this bulletin. I'm sure there was some natural wind slab activity in response to new snow and wind on Monday night. Continued strong ridgetop winds should promote ongoing wind slab activity. For the short term, I also expect loose dry avalanches to be triggered easily in steep sheltered terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, numerous natural slab avalanches up to size 2 were reported at treeline in the Whitewater area. Several natural loose dry avalanches up to size 1.5 were also observed on steep southerly aspects at 1700-2100 m elevation in the Kootenay Pass area. Explosives triggered storm slab avalanches up to size 2 at 1800-2100 m elevation which were reported as soft slabs and likely around 30cm thick. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, wind slabs are expected to be the main concern. Ongoing strong southerly winds are redistributing the 20-30 cm of new snow from Tuesday. Where the new snow remains unconsolidated, loose dry avalanches from steep terrain are expected to be the main concern.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect the recent wind slabs to be sensitive to human triggering. Areas to the West of Kananaskis Country have started to see more avalanche activity with both wind slabs on the Dec 18 facets. More winds will only increase the likelihood of triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, a MIN reports highlights sluffing from steep terrain features is being enhanced by a buried crust. This crust layer or the layer of buried surface hoar above it may still be reactive and could act as the potential bed surface for storm slab avalanches. On Wednesday, storm slab avalanches are most likely in recently wind loaded features, steep terrain features, and areas where surface hoar has been preserved. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche observations have begun to emerge from observers getting out into the mountains since the recent storm. Explosives control and slope cutting has yielded numerous size 1-1.5 results in the storm snow, with one explosive result to running size 2 with a 200 metre-wide crown. Crown depths have averaged between 25 and 60cm. Reports of natural avalanches are still limited to a single size 1.5 wind slab avalanche, but strong ridgetop winds on Wednesday along with new snow on Thursday will promote ongoing slab formation. For the short term, I also expect loose dry avalanches to be triggered easily in steep sheltered terrain. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Of note, two skier triggered size 2 avalanches were recently reported in the Roger's Pass area. Both are reported to have slid on the mid-December weak layer. Although they took place in an adjacent forecast region and could be considered isolated, a possible pattern of increasing activity on the mid-December layer bears mentioning in the South Columbia region as well.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several natural size 1.5 avalanches were observed in the region on Tuesday, with crown depths of up to 40cm. These occurred at high elevations and are attributed to wind slabs that have grown with recent wind and snow loading. An ACMG Mountain Conditions Report from Christmas day describes a slab avalanche failing on a steep, north facing slope at 2100m. This avalanche remains relevant for having stepped down 110cm to the November crust. The size of the avalanche is unknown, but this speaks to the touchy nature of persistent slabs in the area. On Christmas eve, a skier was partially buried in a size 2 slab avalanche while skinning up a northeast facing slope at about 2000m. The failure plane of this avalanche is unknown although the depth (40cm) suggests the mid-December weak layer may have been the culprit. Check out the Mountain Information Network post for more details.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, new storm snow produced numerous size 1.5-2.5 avalanches, including natural and skier-triggered loose dry and storm slab avalanches on north and east aspects. On Wednesday, explosive control continued to release storm slabs, but they remained relatively small (up to size 2).</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No slab avalanches reported on Wednesday. On Tuesday, ski cutting produced a size 2 wind slab in the most recent storm snow. Natural loose dry avalanches up to size 1.5 have also been reported out of steep terrain the past few days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, ski cutting results were limited to two size 1 wind slab avalanches. On Tuesday, explosives and ski cutting produced soft slab avalanches up to size 1.5 which were confined to the new storm snow. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, wind slabs are expected to be the primary concern in the region. However, if we get higher snowfall amounts than expected, there is a potential for storm slab formation. Where this happens, the local danger rating could be higher.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported from the region in several days. On Thursday, wind slab avalanches are expected throughout the region. In the south of the region, a more widespread storm slab problem is expected. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">An avalanche cycle was reported from the Terrace area during Monday and Tuesday's storm, although notably most of the avalanches appeared to be loose dry avalanches. Avalanches up to size 2.5 were also reported from the Ningunsaw area. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No avalanches have been reported since Monday, when, a skier remote triggered a size 1.5 wind slab in the Hankin area on a north aspect at treeline (see MIN report). Wind slabs will remain touchy throughout the week, as sustained winds will redistribute the new low density snow. The additional load of new snow will also keep deeper persistent weak layers reactive, making it possible to trigger larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Numerous natural avalanches have occurred in the region and in the adjacent Glacier National Park region in the past 24 hours. Sizes have ranged from 1-2.5, with one report of a size 3 and all activity is attributed to failure at the interface below our storm snow. Continued strong ridgetop winds along with new snow on Thursday will promote ongoing wind slab activity. For the short term, I also expect loose dry avalanches to be triggered easily in steep sheltered terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Of note, two skier triggered size 2 avalanches were recently reported in the Roger's Pass area. Both are reported to have slid on the mid-December weak layer. Although they took place in an adjacent forecast region and could be considered isolated, a possible pattern of increasing activity on the mid-December layer bears mentioning in the North Columbia region as well. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">At the time of publishing this bulletin, the only new avalanche observations have been related to sluffing of unconsolidated new snow. However, continued strong ridgetop winds along with new snow on Thursday will promote ongoing wind slab development and activity. For the short term, I also expect loose dry avalanches to be triggered easily in steep sheltered terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, numerous natural slab avalanches up to size 2 were reported at treeline in the Whitewater area. Several natural loose dry avalanches up to size 1.5 were also observed on steep southerly aspects at 1700-2100 m elevation in the Kootenay Pass area. A skier triggered avalanche also occurred in the Rossland area on Tuesday which was reported to have occurred on the mid-December interface down 40-60 cm.  This is the first avalanche on the interface in the past week or so.  It is uncertain if this is an isolated problem or an indication that the layer is waking up.  We will continue to closely monitor this interface.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, wind slabs are expected to be the main concern. Light new snowfall and strong southwest winds will continue to load leeward features.  Ongoing wind slab formation has been reported on Tuesday and Wednesday.  Loose dry avalanches remain a concern in steep terrain, especially in areas sheltered from the wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One slab was noticed today below a large alpine cliff face. Sz 2(estimated, debris pile was not seen), E asp, 2500m. From a distance it looked about 60cm deep and 100m wide. Likely ran on the Dec 18th facets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A widespread natural avalanche cycle was observed on Monday evening and overnight. These were storm slab avalanches up to size 2 with a typical slab thickness of 20-40 cm. No new avalanches were observed on Tuesday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, another natural avalanche cycle is expected similar to the one that occurred on Monday night. Heavy snowfall and mild temperatures are expected to quickly form new slabs. In wind exposed terrain, expect thick touchy slabs in leeward terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche observations continue to trickle in from observers getting out into the mountains since this week's storm began. Yesterday's reports include three natural size 2-2.5 avalanches. The largest of these released approximately 50cm deep in the storm snow on a wind-pressed southwest slope. Explosives control and slope cutting continue to yield size 1-1.5 results in the storm snow, with crown depths usually around 20cm in previously controlled terrain but reaching up to 60cm in areas that hold the full depth of storm snow. Avalanche debris has been noted for entraining lots of the loose new snow and running surprisingly far. Continued snowfall and moderate winds over Thursday will promote ongoing slab formation. For the short term, look also for loose dry avalanches to be triggered easily in steep sheltered terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Limited avalanche control took place in the northern part of the region on Wednesday and produced several size 1.5-2.5 avalanches. Crown depths ranged from 20-40cm. These occurred at high elevations and are attributed to wind slabs that have grown with recent wind and snow loading. An ACMG Mountain Conditions Report from Christmas day describes a slab avalanche failing on a steep, north facing slope at 2100m. This avalanche remains relevant for having stepped down 110cm to the November crust. The size of the avalanche is unknown, but this speaks to the touchy nature of persistent slabs in the area. On Christmas eve, a skier was partially buried in a size 2 slab avalanche while skinning up a northeast facing slope at about 2000m. The failure plane of this avalanche is unknown although the depth (40cm) suggests the mid-December weak layer may have been the culprit. Check out the Mountain Information Network post for more details.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday small size 1 avalanches could be easily ski cut behind ridgecrests on all aspects in the new snow. A large human-triggered avalanche was reported near Corbin in the Flathead Range in an area where wind had firmed up the surface snow but where sugary facets were present lower down in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A large human-triggered avalanche was reported from Corbin yesterday on a wind affected slope in an area where weak facets were present. While technically this area is in the Lizard/Flathead area, I feel as though it is indicative of conditions in the South Rockies region. Where you get a combination of weak sugary snow lower in the snowpack and a supportive upper slab, conditions are ripe for avalanches to be human-triggered at this time.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday during the storm highlight widespread natural storm slab and loose dry avalanches from steep terrain and wind loaded terrain. As of Thursday afternoon, most of the reported activity was size 1 soft slab avalanches but they are described as very touchy, widespread, and remote triggers have been observed.  </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, new storm slabs are expected to remain touchy, especially in wind load terrain and on steep slopes.  Extra caution is recommended on steep sun exposed slopes where the sun may cause the new snow to settle into a slab or trigger natural sluffing.  </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday during the storm, natural storm slabs up to size 2.5 were observed in the Duffey Lake area.&nbsp; These avalanches were reported to be releasing from steep terrain features, gullies, and slopes exposed to cross loading from wind.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, new storm slabs are expected to remain touchy, especially in wind load terrain and on steep slopes.&nbsp; Extra caution is recommended on steep sun exposed slopes where the sun may cause the new snow to settle into a slab or trigger natural sluffing. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanches were reported to be easily triggered in the Shames backcountry on a layer of surface hoar buried 30-60 cm below the surface. The report, accessible on the MCR website mountainconditions.com, mentions wide propagation and avalanches running in low angled terrain</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Previously, a natural avalanche cycle up to size 2.5 was reported from the Terrace and Ningunsaw areas during Monday and Tuesday's storm.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No avalanches have been reported since Monday, when, a skier remote triggered a size 1.5 wind slab in the Hankin area on a north aspect at treeline (see MIN report). Wind slabs will remain touchy throughout the week, as sustained winds will redistribute the new low density snow. The additional load of new snow will also keep deeper persistent weak layers reactive, making it possible to trigger larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Natural avalanche observations continue to be reported - mostly from the Roger's Pass area - with numerous size 1-2.5 observations and four reports of size 3 avalanches in the past 24 hours. Storm slab, wind slab, and loose dry avalanches were all featured in today's reports and all are attributed to our recent storm snow layer. Avalanche debris has been noted for entraining lots of the loose new snow and running surprisingly far. Expect continued moderate to strong ridgetop winds along with new snow on Thursday to promote ongoing slab development. For the short term, watch also for loose dry avalanches to be triggered easily in steep sheltered terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new natural avalanches have been observed in the region but slope cutting on Wednesday in the Valemount area produced a size 1.5 avalanche with a 60cm crown depth. It is likely that limited observations and conservative terrain choices are obscuring some of the avalanche potential in the region. Expect our continued moderate to strong ridgetop winds along with new snow on Thursday to promote ongoing slab development - particularly in wind-exposed areas. In more sheltered areas, watch for signs of storm snow consolidating into a slab as well as loose dry avalanches triggering easily in steep terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, a natural size 1 storm slab avalanche was reported on a north aspect at 2100 m which had a slab thickness of 20-40 cm. Skiers and explosives were also triggering storm slabs and wind slabs size 1-2 with typical slab thickness of 20-50 cm. In the mountains west of Trail and Castlegar, a ski cut produced a size 1 persistent slab avalanche on a south aspect at 2100 m. This failed on the mid-December surface hoar layer down 40cm. This is the third avalanche reported on this layer in the same area in the past week. On Tuesday, a skier triggered a size 1.5 slab on this layer on a northeast aspect at 2100 m with a thickness of 40-60 cm. On Monday, a skier triggered a slab on this layer on 40 degree slope on a northeast aspect. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, wind slabs are expected to remain the main concern. Strong southwest winds over the last few days have built touchy wind slabs.&nbsp; On Friday, winds are expected to switch direction and blow from the north which may result in some reverse loading. In the mountains west of Trail and Castlegar, extra caution is required in areas where surface hoar may be preserved.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed on Thursday but field teams were in the ghost and Kananaskis Valley areas. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday during the storm, the storm snow was reported to be touchy and ski cutting in the early afternoon was produced storm slabs size 1-2 in the North Shore mountains with crowns 30-50 cm thick. Isolated natural activity was observed from steep wind loaded terrain during afternoon in the same area. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, weaknesses within the new storm snow are generally expected to heal quickly. However, wind loaded terrain features may remain reactive to human triggering as well as steep slopes.&nbsp; Steep sun exposed slopes are also a concern for Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Widespread storm slab activity was reported on Friday including natural and explosive triggered avalanches typically in the size 2-2.5 range. Expect storm slab activity to continue into the weekend and be extra touchy in wind affected terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent storm snow was reactive on Friday producing several natural size 2 avalanches and sluffing in steep terrain. Wind slabs are the primary concern over the weekend as there is lots of new low density snow available for transport. Avalanche activity on deeper persistent weak layers has tapered off over the past week, but the layer may be possible to trigger in areas where the overlying snow has settled into a stiff slab.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday several size 1-1.5 avalanches could be easily ski cut behind ridgecrests on all aspects in the new snow. A few days ago, a large human-triggered avalanche was reported near Corbin in the Flathead Range in an area where wind had firmed up the surface snow and where sugary facets were present lower down in the snowpack. There's lots of loose snow available for redistribution, so if the wind picks up, expect an increase in wind slab avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A large human-triggered avalanche was reported from Corbin yesterday on a wind affected slope in an area where weak facets were present. While technically this area is in the Lizard/Flathead area, I feel as though it is indicative of conditions in the South Rockies region. Where you get a combination of weak sugary snow lower in the snowpack and a supportive upper slab, conditions are ripe for avalanches to be human-triggered at this time. There's lots of loose snow available for redistribution, so if the wind picks up, expect an increase in wind slab avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday during the storm, widespread natural storm slab avalanches up to size 1.5 were reported as well as natural sluffing from steep terrain. Most of the slab avalanche activity was described as soft or very soft slabs which were touchy in wind loaded terrain. One remotely triggered avalanche was reported as well as one sympathetically avalanche.  </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, explosives triggered numerous storm slabs up to size 2 in the Whistler area.&nbsp; Slab thickness varied from 20 to 75 cm.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, storm slabs remain a concern but wind loaded areas are expected to be the primary area of concern.  Strong alpine winds were from the south at the start of the storm on Thursday and were from the west by the end of the storm.  Winds on Saturday are now coming from the north.  As a result, wind slabs should be expected on all aspects in wind affected terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday during the storm, natural storm slabs up to size 2.5 were observed in the Duffey Lake area. These avalanches were reported to be releasing from steep terrain features, gullies, and slopes exposed to cross loading from wind. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, storm slabs remain an isolated concern but wind loaded areas are expected to be the main area of concern. Strong alpine winds were from the south at the start of the storm on Thursday and were from the west by the end of the storm. Winds on Saturday are now coming from the north. As a result, wind slabs should be expected on all aspects in wind affected terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches to size 2 were reported to be triggered remotely or under light loads in the Terrace backcountry on a layer of surface hoar buried 30-60 cm below the surface. One report, accessible on the MCR website mountainconditions.com, mentions wide propagations and avalanches running in low angled terrain. Check out the great Mountain Information Network posts as well for other detailed reports.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported. Wind slabs will likely remain touchy throughout the forecast period, as sustained winds will redistribute the new low density snow. The additional load of new snow will also keep deeper persistent weak layers reactive, making it possible to trigger larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Widespread storm slab activity was reported on Friday including natural and explosive triggered avalanches typically in the size 2-2.5 range.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Expect storm slab activity to continue into the weekend and be extra touchy in wind affected terrain. Triggering persistent slab avalanches remains possible in thin snowpack areas in the northern and eastern parts of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, avalanche reports were limited to a single size 4 natural avalanche, with no details about the sliding layer. I suspect smaller (size 2) avalanches were relatively widespread during the storm on Thursday and into Friday morning.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Expect storm slab activity to continue into the weekend and be extra touchy in wind affected terrain. Triggering persistent slab avalanches also remains possible in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, ski cutting produced several size 1 wind slab avalanches on north aspects at around 2000 m elevation. These were 5-15 cm thick slabs. A skier also triggered a size 1.5 storm slab avalanche on a northeast aspect at 1850 m which was 15-25 cm thick. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Three persistent slab avalanche were reported this past week in the mountains west of Trail and Castlegar, all of which released on the mid-December surface hoar. On Wednesday, a ski cut produced a size 1 persistent slab on a south aspect at 2100 m which was 40 cm thick. On Tuesday, a skier triggered a size 1.5 slab on a northeast aspect at 2100 m with a thickness of 40-60 cm. On Monday, a skier triggered a slab on this layer on a northeast aspect. Extra caution is still recommended in this area in places where surface hoar may still be preserved.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, wind slabs remain the main concern. Strong southwest winds and light snowfall during the week created wind slabs which may still be lingering and reactive. Winds have now switched to the northwest on Friday and by Saturday evening will be from the northeast. As a result, wind slabs should be expected on all aspects in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">-Numerous loose dry avalanches noted today on all alpine aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">-Explosive control (Mt Rundle) produced a few sz 2's. Most of the avalanche volume came from entrainment of loose snow within the path.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">-A few slab avalanches noted at the base of cliffs in alpine terrain. Up to sz 2 and on east aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday during the storm, the storm snow was reported to be touchy and ski cutting in the early afternoon was produced storm slabs size 1-2 in the North Shore mountains with crowns 30-50 cm thick. Isolated natural activity was observed from steep wind loaded terrain during afternoon in the same area. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, storm slabs remain an isolated concern but wind loaded areas are expected to be the main area of concern. Strong alpine winds were from the south at the start of the storm on Thursday and were from the west by the end of the storm. Winds on Saturday are now coming from the north. As a result, wind slabs should be expected on all aspects in wind affected terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Widespread storm slab activity was reported on Friday including natural and explosive triggered avalanches typically in the size 2-2.5 range. Smaller skier triggered avalanches were reported in steep sheltered terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, expect the storm snow to be most reactive in wind exposed terrain where moderate winds are forming fresh storm slabs. A lack of recent avalanches on the mid-December layer suggests it is not a major concern in this region at the moment, but is still worth considering before pushing into steep terrain in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, there were numerous reports of size 2 avalanches including natural and skier-triggered loose dry avalanches and explosive-triggered wind slabs. There were also isolated reports of size 2 storm slabs on Saturday, including one that stepped down to glacial ice on a steep south-facing slope. Expect touchy wind slabs to develop as moderate winds redistribute loose snow in exposed terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Also, a notable MIN report from Friday shows what seems to be a size 2 persistent slab that was triggered by a ski cut in a cutblock west of Kimberly (see MIN report from Mallandaine Pass). This is a reminder that although avalanche activity on persistent facet layers has been intermittent, the problem will likely linger for some time in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, a size 2.5 slab avalanche was skier-triggered on an east facing slope on Mt Fernie. The slab failed on a cross-loaded treeline feature and ran full path. Although the exact failure plane is unknown, it points to the potentially touchy conditions on wind-affected features. A few days ago, a large (size 2) human-triggered avalanche was reported near Corbin in the Flathead Range in an area where wind had firmed up the surface snow and where sugary facets were present lower down in the snowpack. Evidence of a natural size 2.5 persistent slab avalanche was also noted on a treeline feature in the same area. When the wind picks up again on Sunday, new accumulations from Saturday night will get shifted into lee and cross-loaded features and we can expect an increase in wind slab avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A few days ago, a large human-triggered avalanche was reported from Corbin (near Sparwood) on a wind affected slope in an area where weak facets were present. Evidence of a natural size 2.5 persistent slab avalanche was also noted on a treeline feature in the same drainage. While technically this area is in the Lizard/Flathead region, I feel as though it is indicative of conditions in the South Rockies. Where you get a combination of weak sugary snow lower in the snowpack and a supportive upper slab, conditions are ripe for avalanches to be human-triggered. When the wind picks up again on Sunday, new accumulations from Saturday night will get shifted into lee and cross-loaded features and we can expect an increase in wind slab avalanche activity</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Early on Friday a few natural slab avalanches to size 2 were reported in storm snow above 1900 m. Explosive control was able to release similar avalanches. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported from this region on Friday. On Thursday, an avalanche cycle occurred up to size 2.5, typically running in steep gullies and wind loaded areas. Avalanches will become harder to trigger as the cold sets in.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">In recent days, several persistent slab avalanches to size 2 were triggered remotely or under light loads in the Terrace backcountry on a layer of surface hoar buried 30-60 cm below the surface. Many of these avalanches failed in low angle terrain. Check out the latest Mountain Information Network posts as well as the ACMG Mountain Conditions Report (mountainconditions.com) for some great reports of related avalanche activity. Looking forward, this buried weak layer is likely to persist for some time. For the short term, forecast strong northerly winds are expected to press and add cohesion to the overlying slab increasing the likelihood of wider propagations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Small wind slab avalanche activity and intense wind loading were noted in the Ashman area on Friday. On the same day, a size 1.5 persistent slab avalanche was observed in the Hankin area. The avalanche, which was thought to be about a day old, was triggered naturally on a steep northeast facing alpine slope and likely failed on a crust/facet interface. Thanks to the folks who contributed these observations through our Mountain Information Network.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs will likely remain touchy throughout the forecast period, as sustained extreme winds will redistribute any loose surface snow. Deeper persistent weak layers will also remain reactive, making it possible to trigger larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Widespread storm slab activity was reported on Friday including natural and explosive triggered avalanches typically in the size 2-2.5 range, with some larger avalanches in extreme terrain. A few cases of storm slabs stepping down to the mid-December interface were reported on steep south-facing slopes and on wind-loaded features. A fatal avalanche occurred in the Clemina area of the North Monashees. The avalanche was triggered by a rider on a wind-loaded feature, and potentially released on the mid-December interface. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, expect the recent storm snow to be most reactive in wind exposed terrain where moderate winds are forming fresh storm slabs. Triggering persistent slab avalanches remains possible in thin snowpack areas in the northern and eastern parts of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Saturday. On Friday, a skier triggered avalanche was reported in the Barkerville area that released on weak facets buried 30 cm deep (likely the mid-December layer).</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, expect the recent storm snow to be most reactive in wind exposed terrain where moderate winds are forming fresh wind slabs. Several signs are indicating persistent slab avalanches releasing on the mid-December facets are becoming more likely in parts of the region with thinner snowpacks.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The most interesting recent avalanche activity in the past week has been from the mountains west of Trail and Castlegar, where there have been four reports of small avalanches running on the mid-December surface hoar layer. On Thursday, a size 1.5 avalanche ran naturally on this layer on a south aspect at 2000 m. on a On Wednesday, a ski cut produced a size 1 persistent slab on a south aspect at 2100 m which was 40 cm thick. On Tuesday, a skier triggered a size 1.5 slab on a northeast aspect at 2100 m with a thickness of 40-60 cm. On Monday, a skier triggered a slab on this layer on a northeast aspect. Extra caution is still recommended in this area in places where surface hoar may still be preserved. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">In other news, a skier triggered a size 1.5 storm slab avalanche near Nelson on Thursday on a northeast aspect at 1850 m which was 15-25 cm thick</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few slab avalanches up to size 2.0 have been observed in the past 24 to 48hrs on East aspects between 2200 and 2400m.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several avalanches were reported from this region on Thursday during the most recent storm, but activity has subsided since then. Avalanche danger will briefly increase with the next small pulse of snow and wind but will improve rapidly again with the cold, stable weather expected to follow.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche observations on Saturday included isolated size 1 loose dry avalanches in steep terrain and one natural release of a size 2 avalanches on a northeast treeline slope. After a windy day on Sunday, expect an increase in wind slab avalanche activity on lee and cross-loaded features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, explosive avalanche control produced several size 1-2 slab avalanches on wind loaded features and some larger natural avalanches were observed on steep south facing slopes. MIN reports from the past few days suggest the recent snow is still reactive to rider triggers, including a report from the Kicking Horse area of a skier caught in a small slide on a southwest aspect and another report from from west of Kimberly where a ski cut in a cutblock resulted in a size 2 persistent slab avalanche.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking ahead to Monday, expect wind slabs to remain reactive to human triggers. The additional load may also make the persistent slab over the mid-December interface more reactive in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The most interesting avalanche recently was a size 2.5 slab avalanche triggered on an east facing slope on Mt Fernie. The slab failed on a cross-loaded treeline feature and ran full path. Although the exact failure plane is unknown, it points to the potentially touchy conditions on wind-affected features. A few days ago, a large (size 2) human-triggered avalanche was reported near Corbin in the Flathead Range in an area where wind had firmed up the surface snow and where sugary facets were present lower down in the snowpack. Evidence of a natural size 2.5 persistent slab avalanche was also noted on a treeline feature in the same area.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reports of avalanche activity on Sunday; I suspect most avalanches would have been small windslabs with the northerly wind. The bigger problem is the lingering deeper weakness:&nbsp; last week an avalanche near Corbin on a wind affected, cross-loaded slope was triggered where a fresh windslab was above weak facets. Evidence of a natural size 2.5 persistent slab avalanche was also noted on a treeline feature in the same drainage. While technically this area is in the Lizard/Flathead region, these avalanches illustrate conditions in the South Rockies. Where you get a combination of weak sugary snow lower in the snowpack and a supportive upper slab, conditions are ripe for avalanches to be human-triggered.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Small wind slab avalanches could be triggered in recently loaded pockets up to size 1.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A loose snow avalanche was human-triggered in steep terrain in the Coquihallas on Saturday resulting in the loss of a ski.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In recent days, several persistent slab avalanches to size 2 were triggered remotely or under light loads in the Terrace backcountry on a layer of surface hoar buried 30-60 cm below the surface. Many of these avalanches failed in low angle terrain. Check out the latest Mountain Information Network posts as well as the ACMG Mountain Conditions Report (mountainconditions.com) for some great reports of related avalanche activity. Information from Dec 31 shows this touchy problem remains and is likely to continue. Strong Northerly winds and rapid reverse loading led to a natural avalanche cycle on Dec 30 near Ningunsaw. I suspect this may illustrate a region wide wind slab problem.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A natural avalanche cycle with slides up to size 2 occurred Friday in the mountains near Smithers. This was in response to the strong northerly winds. Thanks to the folks who contributed these observations through our Mountain Information Network.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs will likely remain touchy throughout the forecast period, as sustained winds redistribute any loose surface snow. Deeper persistent weak layers will also remain a concern, it is possible to trigger larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several natural wind slabs were reported in the Selkirks and north Monashees on Sunday, typically in the size 2 range. Looking ahead to Monday, expect wind slabs to remain reactive to human triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, several natural wind slabs were observed on all aspects and elevations during the peak of the winds. A skier also remote triggered a 70 cm deep wind slab on southwest-facing slope at treeline. Looking ahead to Monday, expect wind slabs to remain reactive to human triggers. The additional load may also make the persistent slab over the mid-December interface more reactive in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No avalanches reported in the last 48 hours. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been observed in the last 24 hrs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, isolated wind slab activity was reported including human and naturally triggered size 1 avalanches on unsupported (convex) features. Expect wind slabs to remain reactive to human triggers in specific areas, such as the immediately lee of ridges and on sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, isolated natural wind slab activity was reported on lee and cross loaded features in the size 1-2 range. Expect wind slabs to remain reactive to human triggers this week, especially on sun-exposed slopes. Also be aware that wind-loading and solar radiation may also make the persistent slab over the mid-December interface reactive in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, pockets of wind slab released naturally and from explosives control up to size 1.5 on northeast aspects in the alpine. The most interesting avalanche recently was a size 2.5 slab avalanche triggered on an east facing slope on Mt Fernie. The slab failed on a cross-loaded treeline feature and ran full path. Although the exact failure plane is unknown, it points to the potentially touchy conditions on wind-affected features. A few days ago, a large (size 2) human-triggered avalanche was reported near Corbin in the Flathead Range in an area where wind had firmed up the surface snow and where sugary facets were present lower down in the snowpack. Evidence of a natural size 2.5 persistent slab avalanche was also noted on a treeline feature in the same area.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reports of avalanche activity. The bigger problem is the lingering deeper weakness: last week an avalanche near Corbin on a wind affected, cross-loaded slope was triggered where a fresh windslab was above weak facets. Evidence of a natural size 2.5 persistent slab avalanche was also noted on a treeline feature in the same drainage. While technically this area is in the Lizard/Flathead region, these avalanches illustrate conditions in the South Rockies. Where you get a combination of weak sugary snow lower in the snowpack and a supportive upper slab, conditions are ripe for avalanches to be human-triggered.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Small wind slab avalanches could be triggered in recently loaded pockets to size 1.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanche observations to report in the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, in the north of the region near Ningunsaw a natural size 3.5 was reported that released on basal facets and ran full path. On Sunday, new wind slabs that formed from reverse loading on south aspects were reported to have released naturally up to size 2.5 in the south of the region. In the north, one size 2.0 natural persistent slab was reported that released down to the ground exposing a bed surface of rock slab.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the north of the region near Ningunsaw there was a natural avalanche size 3.5 that released in the basal facets on Monday. This is a good reminder that large full depth avalanches are possible in shallow snowpack areas. A natural avalanche cycle with slides up to size 2 occurred Friday in the mountains near Smithers. This was in response to the strong northerly winds. Wind slabs will likely remain touchy throughout the forecast period, as sustained winds redistribute any loose surface snow. Deeper persistent weak layers will also remain a concern, it is possible to trigger large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, wind slabs were reactive to human triggers on south and west facing slopes, as reports included ski cutting and remote triggering of size 1-1.5 avalanches. Natural wind slab activity in the size 1-2 range was also reported on Sunday and Monday. Expect wind slabs to remain reactive to human triggers in specific areas, such as the immediately lee of ridges and on sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, several natural wind slabs were observed on all aspects and elevations during the peak of the winds. A skier also remote triggered a 70 cm deep wind slab on southwest-facing slope at treeline. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Expect wind slabs to remain reactive to human triggers this week, especially on sun-exposed slopes. Also be aware that wind-loading and solar radiation may also make the persistent slab over the mid-December interface reactive in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A few explosives triggered avalanches have been reported to size 1.5 in the northern part of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One natural avalanche size 2 observed in steep unskiable terrain on an East aspect at 2600m.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, isolated natural wind slab activity was reported on east through northwest aspects, typically in the size 1-1.5 range. Wind slabs may remain reactive to human triggers in isolated areas, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, avalanche reports were limited to a few size 2 wind slabs on southerly aspects that were triggered naturally and by explosives. Wind slabs may remain reactive to human triggers in specific areas, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche activity seems to have tapered off with one natural wind slab (Size 1.5) observed on New Year's day on a NE aspect in the alpine near Fernie. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reports of avalanches. Wind slabs may be triggered on all aspects due to the changing wind directions associated with recent storms. Shallow snowpack areas continue to be a concern for weak facetted (sugary) crystals that may fail to support the more recent storm snow. These weak areas are not expected to improve during this period of cold weather.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Two natural Size 1.5 wind slab avalanches with 40cm deep crowns were observed occurring southwest of Whistler on Monday on steep southwest and southeast slopes. Explosives testing in the Whistler area on Monday successfully targeted several reverse loaded pockets of wind slab in the alpine to Size 1.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Evidence of a natural avalanche cycle was observed in the Duffey Lake area on Monday, where several natural Size 1-2.5 avalanches were observed to have run over Sunday night. Slab depths ranged from 20-60 cm and although most avalanches had slid on southwest aspects, southeast, east, and northeast aspects were also represented. A MIN report from Monday also details a skier triggered Size 1.5 avalanche on Vantage Peak, notable for its approximately 100 cm crown depth revealing significant loading from recent winds.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a size 2.0 persistent slab was released by explosives control in the Shames area that was 40-60 cm deep on a E-SE aspect at around 1100 metres. This slab avalanche is suspected to have released on the buried Christmas surface hoar. On Monday, in the north of the region near Ningunsaw a natural size 3.5 was reported that released on basal facets and ran full path. On Sunday, new wind slabs that formed from reverse loading on south aspects were reported to have released naturally up to size 2.5 in the south of the region. In the north, one size 2.0 natural persistent slab was reported that released down to the ground exposing a bed surface of rock slab.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the north of the region near Ningunsaw there was a natural avalanche size 3.5 that released in the basal facets on Monday. This is a good reminder that large full depth avalanches are possible in shallow snowpack areas. A natural avalanche cycle with slides up to size 2 occurred Friday in the mountains near Smithers. This was in response to the strong northerly winds. Wind slabs will likely remain touchy throughout the forecast period, as sustained winds redistribute any loose surface snow. Deeper persistent weak layers will also remain a concern, it is possible to trigger large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, numerous natural wind slabs in the size 1-2 range were reported on south and southwest aspects. A larger size 3 avalanche was reported to have been triggered by a wind slab stepping down to a deeper weak layer on a steep south-facing alpine slope in the Selkirks.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs may remain reactive to human triggers in specific areas, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from the region are limited to old size 2 wind slabs that occurred during the major wind event on New Years Day. The reports suggest wind loading occurred in open terrain at all elevations and aspects. Lingering wind slabs may remain reactive to human triggering on specific features, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">We've had reports of several natural and skier-triggered windslabs (Size 1.5-2) yesterday in the backcountry near Nelson. Aspects were southwest through north at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Ski cutting in the North Shore mountains on January 1 produced one size 1 wind slab avalanche 10 metres wide and 20 cm deep. Shooting cracks were propagating up to 2 metres ahead of ski tips on wind loaded features, suggesting touchy conditions at the time. While we normally expect a short life span these kinds of instabilities on the South Coast, cold temperatures may be preventing our current wind slabs from bonding to underlying snow at the usual rate.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include isolated natural loose dry sluffs and wind slab avalanches, but generally no new avalanches. Wind slabs may remain reactive to human triggers in isolated areas, such as immediately below ridge crests and in cross-loaded gullies..</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Monday and Tuesday were limited to a few Size 1-2 wind slab avalanches triggered naturally and by explosives. Wind slabs may remain reactive to human triggers in specific areas, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observations. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from yesterday included a MIN report of an avalanche involvement in the adjacent South Coast Inland region, notable for illustrating the heightened consequences of triggering hard wind slab from below the fracture line. No new natural avalanches have been observed, but slope cutting continues to produce Size 1 results in isolated pockets of wind slab. Reports from earlier in the week included two natural Size 1.5 wind slab avalanches with 40cm deep crowns occurring southwest of Whistler on Monday on steep southwest and southeast slopes. Explosives testing in the Whistler area on Monday successfully targeted several reverse loaded pockets of wind slab in the alpine to Size 1.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from yesterday included a MIN report of an avalanche involvement in the Duffey Lake area, notable for the heightened consequences of triggering hard wind slab from below the fracture line. No new natural avalanches have been observed, but evidence of a natural avalanche cycle in the Duffey Lake area was reported on Monday, where several natural Size 1-2.5 avalanches ran over Sunday night. Slab depths ranged from 20-60 cm and although most avalanches had slid on southwest aspects, southeast, east, and northeast aspects were also represented. A MIN report from Monday also details a skier triggered Size 1.5 avalanche on Vantage Peak, notable for its approximately 100 cm crown depth revealing significant loading from recent winds.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a size 2.0 persistent slab was released by explosives control in the Shames area that was 40-60 cm deep on a E-SE aspect at around 1100 metres. This slab avalanche is suspected to have released on the buried Christmas surface hoar. On Monday, in the north of the region near Ningunsaw a natural size 3.5 was reported that released on basal facets and ran full path. On Sunday, new wind slabs that formed from reverse loading on south aspects were reported to have released naturally up to size 2.5 in the south of the region. In the north, one size 2.0 natural persistent slab was reported that released down to the ground exposing a bed surface of rock slab.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. In the north of the region near Ningunsaw there was a natural avalanche size 3.5 that released in the basal facets on Monday. This is a good reminder that large full depth avalanches are possible in shallow snowpack areas. A natural avalanche cycle with slides up to size 2 occurred Friday in the mountains near Smithers. This was in response to the strong northerly winds. Wind slabs will likely remain touchy throughout the forecast period, as sustained winds redistribute any loose surface snow. Deeper persistent weak layers will also remain a concern, it is possible to trigger large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include a few natural and human-triggered wind slab avalanches and cornice falls up to Size 2, but generally no new avalanches. Expect wind slabs to remain sensitive to human triggers for the forecast period.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported. Lingering wind slabs may remain reactive to human triggering on specific features, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've had reports of several skier-triggered windslabs (Size 1.5-2) yesterday in the backcountry near Nelson, and some natural activity the day before. Aspects were southwest through north at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the past 36hrs there have been a few naturally triggered slab avalanches have been observed in Alpine and Treeline terrain on S and SE aspects up to size 2.0. Some of these slabs have stepped down to the Dec 18th layer or the Nov crust layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been observed, but ski cutting in the North Shore mountains on January 1 produced one size 1 wind slab avalanche 10 metres wide and 20 cm deep. Shooting cracks were propagating up to 2 metres ahead of ski tips on wind loaded features, suggesting touchy conditions at the time. While we normally expect a short life span these kinds of storm instabilities on the South Coast, recent cold temperatures may have slowed the strengthening process somewhat.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday include several relatively harmless skier-triggered thin wind slab avalanches on unsupported features, but generally no new avalanches. Wind slabs may remain reactive to human triggers in isolated areas, such as immediately below ridge crests and in cross-loaded gullies..</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Small, predictable skier-triggered avalanches (thin windslabs) were reported yesterday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from earlier in the week were limited to a few Size 1-2 wind slab avalanches triggered naturally and by explosives. Wind slabs may remain reactive to human triggers in specific areas, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new avalanche observations. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported, but Tuesdays MIN report of an avalanche involvement in the adjacent South Coast Inland region remains notable for illustrating the heightened consequences of triggering hard wind slab from below the fracture line. Slope cutting as recently as Tuesday was producing Size 1 results in isolated pockets of wind slab. While avalanche reports have begun to dwindle, keep in mind that challenging riding conditions have been keeping some observers out of the mountains</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Explosives control in the Duffey Lake area continued to produce Size 1 results in pockets of wind slab on Wednesday. One slide amplified to Size 2.5 due to significant entrainment of snow in the track. Tuesdays MIN report of an avalanche involvement in the Duffey Lake area remains notable for illustrating the heightened consequences of triggering hard wind slab from below the fracture line. No new natural avalanches have been reported, but challenging riding conditions have certainly been keeping some observers from getting out into the mountains.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday included a remotely triggered Size 3 persistent slab with a crown depth of 50 cm and width of 150 metres in the Ninginsaw area. This slide ran on a steep southeast facing slope and its failure plane is suspected to be either the December 16 facets or the Christmas surface hoar. On Tuesday, a size 2.0 persistent slab was released by explosives control in the Shames area that was 40-60 cm deep on a E-SE aspect at around 1100 metres. This slab avalanche is suspected to have released on the buried Christmas surface hoar. The natural size 3.5 avalanche that occurred near Ningunsaw on Monday remains notable for releasing on basal facets and running full path.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. In the north of the region near Ningunsaw there was a natural avalanche size 3.5 that released in the basal facets on Monday. This is a good reminder that large full depth avalanches are possible in shallow snowpack areas. A natural avalanche cycle with slides up to size 2 occurred Friday in the mountains near Smithers. This was in response to the strong northerly winds. Wind slabs will likely remain touchy throughout the forecast period, as sustained winds redistribute any loose surface snow. Deeper persistent weak layers will also remain a concern, it is possible to trigger large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday and Wednesday include a few natural and human-triggered sluffs and wind slab avalanches up to Size 2 and a Size 2.5 cornice fall, but generally no new avalanches. Expect wind slabs, cornices and loose surface snow to remain sensitive to human triggers for the forecast period.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported. Lingering wind slabs may remain reactive to human triggering on specific features, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported today. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Earlier in the week we had reports of several skier-triggered windslabs (Size 1.5-2) in the backcountry near Nelson. Aspects were southwest through north at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We saw three avalanches today. All in the alpine on east aspects and up to sz 2.5. Interestingly, they were all mid slope and in skiable terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from the past few days include several relatively harmless skier-triggered thin wind slab avalanches on unsupported features and sluffing in steep terrain, but generally no new avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche control work showed no signs of triggering slabs; however, don't let that give you a false sense of security.... normal caution is advised. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Small, predictable skier-triggered avalanches (thin windslabs) were reported on Wednesday. Reports from earlier in the week were limited to a few Size 1-2 wind slab avalanches triggered naturally and by explosives. Wind slabs may remain reactive to human triggers in specific areas, such as the immediately lee of ridges and sun-exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A spooky size 3 natural avalanche was spotted in the Liverwurst bowl on a north aspect at 1800m - see today's MIN report at avalanche.ca. The crown is approximately 150cms high and the failure may have been on basal facets, which are large, sugary and weak. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A skier triggered size 2 wind slab was reported near Fernie, east aspect also at 1800m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new avalanches observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Thursday. Several small wind slab avalanches were reported earlier in the week, and lingering wind slabs may still be reactive in isolated wind-loaded pockets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Thursday. Wind slabs were reactive in the Duffey Lake area earlier in the week, including an avalanche involvement reported on the MIN and an explosive triggered wind slab. Be on the lookout for wind loaded pockets where reactive wind slabs may still be lingering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Another natural persistent slab avalanche was reported in the Ningunsaw area on Thursday, indicating that the persistent problem will linger for some time in the northern part of the region. No recent avalanches have been reported in the southern part of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, the primary concern is fresh storm slabs with the new snow, although triggering deeper persistent layers remains possible.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday and Thursday include two more deep persistent avalanches. One Size 2 and one Size 3 both running on facets at the base of the snowpack south facing alpine slopes. These deep persistent slabs will remain a concern, as it is possible to trigger large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include a recent Size 2 naturally occurring storm slab avalanche on a north aspect. Reports from Tuesday and Wednesday include a few natural and human-triggered sluffs and wind slab avalanches up to Size 2 and a Size 2.5 cornice fall, but generally no new avalanches. Expect wind slabs, cornices and loose surface snow to remain sensitive to human triggers for the forecast period.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from the Allen Creek area near Valemount include five recent rider-triggered persistent slab avalanches up to Size 1.5. All activity has been on northerly aspects with convex start zone above 35 degrees. Check out the MIN report for more details.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported today. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Earlier in the week we had reports of several skier-triggered windslabs (Size 1.5-2) in the backcountry near Nelson. Aspects were southwest through north at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new slab avalanche activity was observed but there was a few small sz 1 loose dry avalanches out of steep unskiable terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> A few naturally triggered wind slabs on variable aspects up to size 1.5 have been reported over the past couple days.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2 natural cornice fall was observed on Friday in the Bugaboos area. The cornice released from a northeast-facing feature in the alpine and its failure to trigger any slab below might be attributed to recent scouring of snow from that aspect. No other avalanche activity has been reported in the region, but wind slabs may remain reactive to human triggers in specific areas, such as the immediate lee of ridges.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A spooky size 3 natural avalanche was spotted in the Liverwurst bowl on a north aspect at 1800m on Friday. See the MIN report for details and an image that will help to keep deep persistent weaknesses on your mind. The crown is approximately 150cms high and the failure may have been on basal facets, which are large, sugary, and weak. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Explosives control in the southern Alberta Rockies produced a Size 2 result in a heavily wind loaded start zone on Friday. A pocket of wind slab released to Size 1 under skier traffic in the same area on Friday. Wind slabs are expected to remain reactive to human triggers with ongoing winds keeping slabs touchy and highly variable snowpack depths keeping trigger points easy to strike.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Friday. Several small wind slab avalanches were reported earlier in the week, and lingering wind slabs may still be reactive in isolated wind-loaded pockets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Saturday, but be on the lookout for isolated wind-loaded pockets where wind slabs may still be lingering. Expect avalanche activity to increase with the incoming storm.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, poor visibility limited avalanche reports to a few size 1 natural avalanches at low elevations, but larger storm slab avalanches likely occurred at higher elevations. Large persistent slab avalanches have been reported on a regular basis in the Ningunsaw area for the past few weeks.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, increasing winds will transport the recent storm snow and continue to build touchy storms slabs. Triggering larger persistent slab avalanches on buried surface hoar layers remains possible.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past week there have been a couple natural deep persistent avalanches to size 3.5. These are large, destructive avalanches that failed on sugary facets at the bottom of the snowpack and ran long distances.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A couple of naturally triggered wind slabs on northerly aspects, up to size 2 have been reported throughout the region over the past few days. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, no new avalanches were reported in this region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 1 wind slab avalanche was triggered by a skier in the Valhalla range on Thursday. The slide had a crown depth of approximately 30 cm and ran on a steep north aspect above 2000 metres in elevation. This serves as a good reminder that the wind slab problem hasn't disappeared yet and that it can be found on north aspects too. No new natural avalanches were reported today, but you can expect our new snow to sluff easily in steep terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new slab avalanche activity was observed but there was a few small sz 1 loose dry avalanches out of steep unskiable terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, ski cutting produced several loose dry avalanches running size 1 in the new snow and running long and fast. The poor bond between the new snow and the old snow interface could become a problem when the next storm arrives. Expect avalanche activity to increase with the incoming storm.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">On Saturday, one natural and several human triggered size 1 wind slabs were reported on a variety of aspects. I expect human triggered wind slab activity to increase on Monday with the forecast new snow and wind.</span><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports include a Size 2 natural cornice fall that was observed on Friday in the Bugaboos area. The cornice released from a northeast-facing feature in the alpine and its failure to trigger any slab below might be attributed to recent scouring of snow from that aspect. No new avalanche activity was reported on Saturday, but new snow over Sunday and Monday is expected to form touchy slabs in lee terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday, but new snow over Sunday and Monday is expected to form touchy slabs in the lee of exposed terrain features. Recent reports include a spooky size 3 natural avalanche spotted in the Liverwurst bowl on a north aspect at 1800m on Friday. See the MIN report for details and an image that will help to keep deep persistent weaknesses on your mind. The crown is approximately 150cms high and the failure may have been on basal facets, which are large, sugary, and weak. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday, but explosives control in the southern Alberta Rockies produced a Size 2 result in a heavily wind loaded start zone on Friday. A pocket of wind slab released to Size 1 under skier traffic in the same area on Friday. Wind slabs are expected to remain reactive to human triggers with new snow and ongoing winds keeping slabs touchy, as well as highly variable snowpack depths keeping trigger points easy to strike.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">No new avalanches observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new avalanches observed this weekend. </span><span class="s_3FE45715"> Wind slabs were reactive in the Duffey Lake area earlier in the week, including an avalanche involvement reported on the MIN and an explosive triggered wind slab. Be on the lookout for wind loaded pockets where reactive wind slabs may still be lingering.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A widespread cycle was reported following the latest storm, mostly Size 2 wind and storm slabs. All elevations were represented: alpine to steep open areas below treeline. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">(Deep) persistent natural slab avalanches continue to rear their ugly heads, the last one being in the Ningunsaw area on Thursday. This indicates the persistent problem will linger for some time in the northern part of the region. No recent avalanches have been reported in the southern part of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, the primary concern is fresh wind slabs with the recent snow, although triggering deeper persistent layers remains possible.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past week there have been a couple natural deep persistent avalanches to size 3.5. These are large, destructive avalanches that failed on sugary facets at the bottom of the snowpack and ran long distances.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, numerous size 1 human triggered wind slabs were reported on northerly aspects.</span><span class="s_1681A555"> I expect human triggered wind slab activity to increase on Monday with the forecast new snow and wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, a size 1 skier triggered wind slab was reported on a southwest aspect. I expect human triggered wind slab activity to increase on Monday with the forecast new snow and wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Sunday, but new snow with wind over Sunday and Monday will build fresh, touchy slabs in lee terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche activity was observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new avalanches reported. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday a few size 1 skier-triggered wind slabs were observed in higher elevation wind-exposed terrain. I'd expect a new round of wind slab activity in response to new snow and wind on Sunday night and Monday. Northerly winds on Tuesday may promote a reverse loading pattern increasing the likelihood of wind slab activity on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday or Sunday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, recently formed wind slabs are expected to remain reactive to human triggering. Ongoing wind loading is also expected on Tuesday with the forecast for moderate to strong northerly winds in the alpine. With the winds switching directions, wind slabs should be expected on a variety of aspects.&nbsp; </span><span class="s_3FE45715">Persistent slab avalanches also remain an ongoing concern.  Buried weak layers are creating a low probably, high consequence problem for the region.</span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, ski cutting produced several storm slab avalanches up to size 1.5 on southeast and east aspects at 1750-2100 m elevation. These slabs were typically 15 cm thick and were reported to be very reactive in gulley features.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, recently formed wind slabs are expected to remain reactive to human triggering. Ongoing wind loading is also expected on Tuesday with the forecast for moderate to strong northerly winds in the alpine. With the winds switching directions, wind slabs should be expected on a variety of aspects. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches also remain an ongoing concern. Buried weak layers are creating a low probably, high consequence problem for the region. Check out the MIN post from Liverwurst bowl area for a recent example of a large persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday or Sunday.  </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, recently formed wind slabs are expected to remain reactive to human triggering. Ongoing wind loading is also expected on Tuesday with the forecast for moderate to strong northerly winds in the alpine. With the winds switching directions, wind slabs should be expected on a variety of aspects. </span><span class="s_3FE45715">Persistent slab avalanches also remain an ongoing concern.  Buried weak layers are creating a low probably, high consequence problem for the region.  </span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A widespread soft slab cycle (to Size 1.5) was triggered with explosives on Monday. No new natural avalanches were observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, skiers triggered a Size 2 wind slab near treeline on Zupjok peak (Coquihalla area). The culprit was northeasterly outflow winds loading southwest aspects. See the MIN post for more details:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">http://www.avalanche.ca/map/forecasts/south-coast-inland?panel=mountain-information-network-submissions%2Fd9620fad-38ad-4b09-adb2-e38941dbd6d4</span></p><p class="p_CC664AAA"><span class="s_3FE45715">No new natural avalanches observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past few days we've had several reports of natural and human-triggered windslabs (mostly Size 2) in all areas of the region, especially on westerly aspects.  Reports from social media show touchy windslabs in the Sterling area, southwest aspect. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">https://www.facebook.com/groups/314113201944133/permalink/1329849827037127/</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Another natural persistent slab avalanche was reported in the Ningunsaw area on Thursday, indicating that the persistent problem will linger for some time in the northern part of the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A large natural slab avalanche was reported from the Babine Range on Sunday. The slab, which ran approximately 200m, was reported to be 50m wide and 50cm deep. The weak layer associated with this avalanche is unknown. Thanks to the individual who submitted the observation via the Mountain Information Network. </span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">A wind slabs to size 1.5 were noted on Sunday in high elevation terrain. I'd expect a new round of wind slab activity in response to new snow and wind on Sunday night and Monday. Northerly winds on Tuesday may promote a reverse loading pattern increasing the likelihood of wind slab activity on all aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Sunday. I'd expect a new round of wind slab activity in response to new snow and wind on Sunday night and Monday. Northerly winds on Tuesday may promote a reverse loading pattern increasing the likelihood of wind slab activity on a variety of aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Early reports from Monday include two natural size 2 storm slabs on southern aspects at 1850-2000m elevation. Explosives triggered several more storm slabs up to size 2.5 in the same terrain. This activity was limited to the new snow sliding on the old snow surface and wind loading may have contributed to the slab formation. On Sunday, a skier triggered a small size 1 wind slab avalanche on an isolated ridge top feature. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, recently formed wind slabs are expected to remain reactive to human triggering. Ongoing wind loading is also expected on Tuesday with the forecast for moderate to strong northerly winds in the alpine. With the winds switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new was observed today, but visibility was quite limited.</span></p>
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</style><p class="p_CC664AAA"><span class="s_DDF6C5E8">Only minor loose wet Size 1 natural avalanches were observed yesterday in the North Shore mountains. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday several naturally triggered wind slab avalanches were observed in mostly treeline and alpine terrain. These avalanches formed in response to new snow and wind on Sunday night and Monday. Continued northerly winds on Tuesday will likely promote a reverse loading pattern increasing the likelihood of human triggered wind slab activity on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">An early report from Tuesday in the Invermere area includes a skier remotely triggering a size 1 wind slab from 10 m away on a northeast aspect at 2500 m elevation. This slab was in a loaded leeward terrain feature and was 25 cm thick. Explosives and ski cutting in the north of the region produced size 1-1.5 wind slabs. </span><span class="s_AA239A9B">On Monday, reports include natural avalanches up to size 1.5 from steep, unskiable terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, recently formed wind slabs may still be reactive to human triggering. With the winds recently switching directions, wind slabs should be expected on a variety of aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, explosives triggered one size 1.5 storm slab on a northeast aspects at 2100 m elevation which was 15-20 cm thick. On Monday, several natural storm slab avalanches up to size 2 were observed on a variety of aspects. Ski cutting also produced several storm slab avalanches up to size 1.5. These slabs were typically 15-20 cm thick and were reported to be very reactive in gulley features.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, recently formed wind slabs may still be reactive to human triggering. With the winds recently switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, ski cutting produced numerous size 1-1.5 storm slabs. These slabs were typically 15-20 cm thick and were reactive in the alpine and at treeline. One natural was also observed from a steep, unskiable terrain feature. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, recently formed wind slabs may still be reactive to human triggering. With the winds recently switching directions, wind slabs should be expected on a variety of aspects. Persistent slab avalanches also remain an ongoing concern. Buried weak layers are creating a low probably, high consequence problem for the region. Extra caution is recommended in shallow snowpack areas of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A widespread soft slab cycle (to Size 1.5) was triggered on northerly aspects with explosives and skier traffic on Monday. No new natural avalanches were observed.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, skiers triggered a Size 2 wind slab near treeline on Zupjok peak (Coquihalla area). The culprit was northeasterly outflow winds loading southwest aspects. See the MIN post for more details:</span></p><p class="p_CC664AAA"><span class="s_3FE45715">http://www.avalanche.ca/map/forecasts/south-coast-inland?panel=mountain-information-network-submissions%2Fd9620fad-38ad-4b09-adb2-e38941dbd6d4</span></p><p class="p_CC664AAA"><span class="s_3FE45715">No new natural avalanches observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past few days we've had several reports of natural and human-triggered windslabs (mostly Size 2) in all areas of the region, especially on westerly aspects. Reports from social media show touchy windslabs in the Sterling area, southwest aspect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">https://www.facebook.com/groups/314113201944133/permalink/1329849827037127/</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Another natural persistent slab avalanche was reported in the Ningunsaw area last Thursday, indicating that the persistent problem will linger for some time in the northern part of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A large natural slab avalanche was reported from the Babine Range on Sunday. The slab, which ran approximately 200m, was reported to be 50m wide and 50cm deep. The weak layer associated with this avalanche is unknown. Thanks to the individual who submitted the observation via the Mountain Information Network. </span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">Naturally triggered wind slabs to size 2 were noted in exposed terrain on Monday. These formed in response to new snow and strong variable winds. Continued northerly winds on Tuesday will likely promote a reverse loading pattern increasing the likelihood of human-triggered wind slab activity on all aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Monday, although in the neighbouring North Columbia region, wind slab activity to size 1.5 was noted in exposed terrain. Ongoing northerly winds on Tuesday may promote a reverse loading pattern increasing the likelihood of wind slab activity on a variety of aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, two natural size 2 storm slabs were reported on southern aspects at 1850-2000m elevation. Explosives and ski cutting triggered several more storm slabs and wind slabs size 1-2.5. This activity was limited to the new storm snow sliding on the old snow surface. Slabs were typically around 15 cm thick and up to 30 cm thick in wind loaded areas. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, recently formed wind slabs may still be reactive to human triggering. With the winds recently switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several naturally triggered slabs up to size 2.5 in the Alpine on all aspects. The majority of these avalanches are associated with the recently formed wind slabs, but a few failed deeper on the Dec 18th interface. In addition numerous loose dry avalanches up to size 1.5 have occurred over the past 24hrs in steep Alpine terrain on all aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new avalanches observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, a natural wind slab event was reported up to size 2 on a variety of aspects with one notable size 3 that ran on a SE slope at 1360 m. Switching winds from North to the West on Thursday will likely promote a reverse loading pattern increasing the likelihood of rider triggered wind slab activity on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, numerous wind slabs up to size 1.5 were reported. A couple of these occurred naturally due to the previous wind event and the others were easily triggered by the weight of a person. On Thursday, recently formed wind slabs may still be reactive to human triggering. With the winds switching directions, wind slabs should be expected on a variety of aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A round of natural loose dry and storm slab avalanches up to size 1.5 were reported on Tuesday. Additionally, explosives triggered one size 1.5 storm slab on a northeast aspects at 2100 m elevation which was 15-20 cm thick. On Thursday, recently formed wind slabs may still be reactive to human triggering. With the winds recently switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, ski cutting produced numerous size 1-1.5 loose dry avalanches from steeper terrain features. Switching winds on Thursday may build new and reactive wind slabs. Variability in the winds has been the name of the game and wind slabs may be found on all aspects at upper elevations. </span><span class="s_3FE45715">Persistent slab avalanches also remain an ongoing concern, creating a low probably, high consequence problem for the region. Extra caution is recommended in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A MIN report from Tuesday details a skier triggered avalanche involvement in the adjacent South Coast Inland region. The avalanche was triggered in a rocky section of a steeper southeast-facing slope where there appeared to be evidence of recent wind loading. Tuesday's wind event resulted in numerous Size 1 wind slabs running naturally on steep southerly slopes. Natural avalanche activity was focused in areas that had more new snow available for transport by our outflow winds. Crown depths ranged from 15 cm up to 40 cm in heavier snow areas. Previous to this activity, observations on Monday revealed widespread soft slab activity (to Size 1.5) on northerly aspects with explosives and skier traffic. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715"> A MIN report from Tuesday details a skier triggered avalanche involvement in our region. The avalanche was triggered in a rocky section of a steeper southeast-facing slope where there appeared to be evidence of recent wind loading. Other reports from Tuesday include several Size 1.5-2 avalanches running naturally in steep west and northwest-facing terrain in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past few days we've had several reports of natural and human-triggered windslabs (mostly Size 2) in all areas of the region, and especially on westerly aspects. Reports from social media show touchy windslabs on a southwest aspect in the Sterling area.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">https://www.facebook.com/groups/314113201944133/permalink/1329849827037127/ </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a skier accidentally triggered a size 2 wind slab on a 34 degree southwest facing slope at treeline. This avalanche occurred a few kilometres east of the Kispiox river valley. No other new avalanches were reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">Several naturally triggered wind slabs to size 2 were noted in exposed terrain on Monday and Tuesday. These formed in response to new snow and southwest winds on Monday and more recent northerly winds. Although natural avalanche activity will likely taper-off, fresh wind slabs will be slower to gain strength with the cooler temperatures, and human triggering will remain a concern in wind-exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, numerous naturally triggered wind slabs to size 1.5 were noted in steep, high elevation terrain. Continued strong winds on Thursday should promote ongoing wind slab activity. </span><span class="s_1681A555">Although natural avalanche activity will likely taper-off in the coming days, fresh wind slabs will be slower to gain strength with the cooler temperatures, and human triggering will remain a concern in wind-exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, two natural size 2 storm slabs were reported on southern aspects at 1850-2000m elevation. Explosives and ski cutting triggered several more storm slabs and wind slabs size 1-2.5. This activity was limited to the new storm snow sliding on the old snow surface. Slabs were typically around 15 cm thick and up to 30 cm thick in wind loaded areas. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, recently formed wind slabs may still be reactive to human triggering. With the winds recently switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few natural avalanches on N and E aspects up to sz 2 were observed over the past 24hrs.  These slides were mainly in the alpine, but in a few locations they did run down into skiable terrain.  On one slide in the murray moraines area the slab was only 20-30cm deep but was surprisingly wide (100m) </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new avalanches observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, some natural and numerous wind slab avalanches were reported up to size 2 on a variety of aspects. Loose dry sluffing was also noted from southerly slopes. Switching winds will likely promote a reverse loading pattern increasing the likelihood of rider triggered wind slab activity on a variety of aspects on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, a natural size 2 slab avalanche was reported from an ENE aspect near 2500m and likely triggered by wind. Several size 1 skier triggered avalanches were also noted from easterly aspects near 2200m. With winds switching directions, recently formed wind slabs may still be reactive to human triggering on a variety of aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanche activity reported on Thursday. With the winds recently switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, numerous natural and skier triggered loose dry avalanches up to size 2 were reported from the region. Variability in the winds has been the name of the game and wind slabs may be found on all aspects at upper elevations. </span><span class="s_3FE45715">Persistent slab avalanches also remain an ongoing concern, creating a low probably, high consequence problem for the region. Extra caution is recommended in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A video of a snowboarder caught Wednesday in a Size 2 avalanche near Brandywine (Chocolate Bowl) has gone viral. See the MIN post below for more details:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">http://www.avalanche.ca/map/forecasts/sea-to-sky?panel=mountain-information-network-submissions%2F8c832980-b83c-4b4f-a23d-540ed9bfe606</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2.5 natural was seen on the south aspect of Mt Currie near 2100m elevation. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 2 natural avalanches were seen on the north aspects in the Hurley zone. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Tuesday details a skier triggered avalanche involvement in our region. The avalanche was triggered in a rocky section of a steeper southeast-facing slope where there appeared to be evidence of recent wind loading. Other reports from Tuesday include several Size 1.5-2 avalanches running naturally in steep west and northwest-facing terrain in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">With the temperature inversion yesterday (warming almost to 0 degrees at 1400m) there were natural avalanches observed on northern aspects around 1300m, running on the Jan 5/6 surface hoar layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a skier accidentally triggered a size 2 wind slab on a 34 degree southwest facing slope at treeline. This avalanche occurred a few kilometres east of the Kispiox river valley. A natural avalanche also ran about that time near Ningunsaw. It was reported as a size 2.5 running on basal facets on a southwest aspect at 1700 m.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">On Wednesday, a snowmobiler triggered a wind slab avalanche on a southeast aspect at around 2100 m. Several naturally triggered wind slabs to size 2 were noted in exposed terrain on Monday, Tuesday and Wednesday. I anticipate ongoing wind slab problems for the rest of this week and into the weekend. In shallow areas like Clemina Creek, it could be possible to trigger a layer of facets buried around 60 cm below the surface.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, numerous naturally triggered wind slabs to size 1.5 were noted in steep, high elevation terrain. On Wednesday, several small natural wind slab avalanches were reported near Valemount on various aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, numerous natural loose dry and wind slab avalanches up to size 2 were reported. Most of these failed on solar aspects, or wind slabs that were triggered by people. With the winds recently switching directions, wind slabs should be expected on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity was observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs have been reactive to human and natural triggers over the past week. On Thursday, several human-triggered wind slabs in the size 1-1.5 range were triggered on a wide range of aspects at treeline. On Friday, a skier triggered a size 2 avalanche on a south-facing alpine slope in the Valhalla range. The avalanche was likely triggered on the mid-December facets in a relatively shallow snowpack area. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs will likely remain reactive over the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, a natural size 2 wind slab avalanche was reported from an North aspect near 2500m. Explosive triggered cornice drops initiated numerous slab avalanches size 2.5 and one size 3 from the slopes below. They were initiated from NE-S aspects above 2500 m. The details of these larger avalanches did not state if they were persistent slabs or wind slabs. Regardless, the size and magnitude is very destructive. With winds switching directions, recently formed stiff wind slabs may still be reactive to human triggering on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanche activity reported on Friday. With the winds recently switching directions, wind slabs may be reactive on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, wind slabs up to size 1 were easily triggered by the weight of a person. Variability in the winds has been the name of the game and reactive wind slabs may be found on all aspects at upper elevations. </span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A video of a snowboarder caught Wednesday in a Size 2 avalanche near Brandywine (Chocolate Bowl) has gone viral. See the MIN post below for more details:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">http://www.avalanche.ca/map/forecasts/sea-to-sky?panel=mountain-information-network-submissions%2F8c832980-b83c-4b4f-a23d-540ed9bfe606</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2.5 natural was seen on the south aspect of Mt Currie near 2100m elevation on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 2 natural avalanches were seen on north aspects in the Hurley zone on Tuesday and also farther northwest (Size 2.5) on Thursday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Sunday details a skier triggered avalanche in the south of our region. The avalanche was triggered near treeline on a southwest-facing slope where there appeared to be evidence of recent wind loading. Other reports from Tuesday include several Size 1.5-2 avalanches running naturally in steep west and northwest-facing terrain in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday several Size 2 natural slab avalanches were seen just north of Terrace on east and west aspects near treeline, running mostly likely on the Jan 5/6 surface hoar. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday natural avalanches were observed on northern aspects around 1300m, running on the Jan 5/6 surface hoar layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Deep persistent slab avalanches continue to be reported in the Ningunsaw area, including natural and explosive triggered size 2.5 avalanche running on basal facets on southwest aspects. A natural size 2 wind slab avalanche was reported in the southern part of the region on Thursday, releasing on a wind-loaded northeast alpine slope.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">With the incoming storm expect an increase in avalanche activity, including very touchy storm slabs that have the potential to trigger large deep persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs have been reactive to human and natural triggers over the past week. On Thursday, numerous skier-triggered wind slabs in the size 1-2 range were triggered on a wide range of aspects at treeline. Natural size 1.5-2 wind slabs were also observed in alpine terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs will likely remain reactive over the weekend. In shallow areas like Clemina Creek, it could be possible to trigger a layer of facets buried around 60 cm below the surface.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several size 1-1.5 naturally-triggered wind slabs have been reported in the Valemount area over the past few days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a size 2 slab avalanche was triggered from a heavy load of snow by machinery. The avalanche ran on the weak basal facets at ground level from a south aspect around 1700m. It did take a large load to trigger this avalanche, however; it may be a good indication of what a cornice failure may do or significant change to the snowpack like warming. Something to be kept on your radar as we transition into a warmer, wetter period next week. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity was observed on Friday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> No new observed. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday include several size 1-1.5 wind slab avalanches releasing from steeper terrain on mostly north to northeast aspects. A report of particular interest details a Size 2 avalanche releasing from a lower-angle south aspect in the Valhalla Range. Although isolated, it being reported to have failed on the 25 cm-deep December 26 surface hoar layer raises concern for shallower snowpack areas. On Thursday, several human-triggered wind slabs in the size 1-1.5 range were triggered on a wide range of aspects at treeline. Wind slabs will likely remain reactive over the short term.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday small wind slabs were triggered by skiers on a variety of aspects. Control work in the central portion of the region produced small wind slabs in north facing terrain around 2400m. On Thursday, a natural size 2 wind slab avalanche was reported from a North aspect near 2500m. Explosive triggered cornice drops initiated numerous slab avalanches size 2.5 and one size 3 on the slopes below. They were initiated from NE through S aspects above 2500m. The details of these larger avalanches did not state if they were persistent slabs or wind slabs. Regardless, the size and magnitude is very destructive. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No significant avalanche activity reported on Friday. With the wind recently switching directions, wind slabs may be reactive on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reported avalanche activity on Friday was limited to a single small wind slab from a steep feature below treeline. On Thursday, wind slabs up to size 1 were easily triggered by the weight of a person. Variability in the winds has been the name of the game and reactive wind slabs may be found on all aspects at upper elevations. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A video of a snowboarder caught Wednesday in a Size 2 avalanche near Brandywine (Chocolate Bowl) has gone viral. See the MIN post below for more details:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">http://www.avalanche.ca/map/forecasts/sea-to-sky?panel=mountain-information-network-submissions%2F8c832980-b83c-4b4f-a23d-540ed9bfe606</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2.5 natural was seen on the south aspect of Mt Currie near 2100m elevation on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs were easily triggered with explosives in the northern part of the region. No natural avalanches reported, but I suspect that's due to limited observations. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Deep persistent slab avalanches continue to be reported in the Ningunsaw area, including natural and explosive triggered size 2.5 avalanches running on basal facets on southwest aspects. A natural size 2 wind slab avalanche was reported in the southern part of the region on Thursday, releasing on a wind-loaded northeast alpine slope.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As the storm cycle continues, we can expect an increase in avalanche activity, including very touchy storm slabs that have the potential to trigger large deep persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs have remained reactive to human and natural triggers over the past week. Friday's reports included natural and ski cut Size 1-1.5 wind slabs releasing from steeper convex features in north to northeast-facing terrain at treeline and above. On Thursday, numerous skier-triggered wind slabs in the size 1-2 range were triggered on a wide range of aspects at treeline. Natural size 1.5-2 wind slabs were also observed in alpine terrain. Wind slabs will likely remain reactive over the short term. In shallow areas like Clemina Creek, it could be possible to trigger a layer of facets buried around 60 cm below the surface.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Size 1-1.5 wind slab avalanches have continued to run naturally in steep terrain, with the most recently reported activity observed on north aspects near Valemount.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported, but Thursday's reports included a size 2 slab avalanche triggered from a heavy load of snow being moved by machinery. The avalanche ran on weak basal facets at ground level from a south aspect at around 1700m. It did take a large load to trigger this avalanche, but it may be a good indication of what a cornice failure may be capable of. Something to be kept on your radar as we transition into a warmer, wetter period next week. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One new slab avalanche observed today on an East aspect in the Alpine. This slide was naturally triggered and appears to have occurred in the past 24hrs. The fracture line was up to 100cm deep.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday show a decline in natural wind slab avalanches with a maintained potential for small, human-triggered wind slabs. Pockets of wind slab in steep lee terrain will likely remain reactive over the short term. Friday's reports included several size 1-1.5 wind slab avalanches releasing from steeper terrain on mostly north to northeast aspects. A report of particular interest details a Size 2 avalanche releasing from a lower-angle south aspect in the Valhalla Range. Although isolated, it being reported to have failed on the 25 cm-deep December 26 surface hoar layer raises concern for shallower snowpack areas. Aside from wind slab and possible persistent slab problems, additional caution is advised in steep terrain where loose snow sluffing may present an unexpected hazard.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche reports from the weekend included several size 1 loose dry avalanches on solar aspects, and a few isolated size 1.5 wind slabs triggered on northeast aspects by explosive and natural triggers. Larger wind slabs (up to size 2.5) were triggered earlier in the week by explosive control.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, expect wind slabs to remain reactive to human triggers on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several size 1-1.5 natural loose dry avalanches were reported on solar aspects over the weekend. On Saturday, ski cutting produced a size 2 avalanche on a wind-loaded northeast aspect at 1900 m. The avalanche was suspected to release on a weak layer of facets underneath the wind slab.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, expect wind slabs to remain reactive to human triggers on a variety of aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche reports from the weekend. An MIN report from Waterton Park on Friday shows a large size 3 deep persistent slab avalanche triggered by a smaller wind slab on a feature with highly variable snow depths. Although an isolated event, this avalanche highlights the possible consequence of our tricky persistent slab problem, especially with the incoming change of weather.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several skier (accidental) triggered Size 1 wind slabs were reported on S to SE aspects above 2000m on Saturday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Only a few loose wet natural avalanches (to Size 1.5) were observed on steep solar (south) aspects this weekend. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several storm slabs and loose dry avalanches were reported on a wide range of aspects Saturday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Poor visibility limited avalanche observations over the weekend, with a single report of an audible natural avalanche heard by someone in the field. I suspect widespread natural activity occurred over the weekend.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the next few days, storms slab avalanches are likely in areas that receive heavier snowfall, however, the primary concern throughout the region is the deep persistent slab problem, as large destructive avalanches will remain likely with ongoing warming and loading.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday show a decline in natural wind slab avalanches with small, skier triggered wind slab avalanches still occurring. Friday's reports included both natural and ski cut Size 1-1.5 wind slabs releasing from steeper convex features in north to northeast-facing terrain at treeline and above. Pockets of wind slab will likely remain reactive in immediate lee terrain over the short term. In shallow areas like Clemina Creek, it could be possible to trigger a layer of facets buried around 60 cm below the surface. Aside from these wind slab and possible persistent slab problems, additional caution is advised in steep terrain where loose snow sluffing may present an unexpected hazard.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed on Saturday. Friday's reports indicated Size 1-1.5 wind slab avalanches were continuing to run naturally in steep terrain, with the most recent activity observed on north aspects near Valemount. Aside from wind slab and persistent slab problems, additional caution is advised in steep terrain where loose snow sluffing may present an unexpected hazard.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday show a continued potential for small human-triggered wind slab avalanches, as well as several observations of both natural and human-triggered loose snow avalanches in steep terrain. Pockets of wind slab in steep, immediate lee terrain are expected to remain reactive over the short term. Aside from wind slab problems, additional caution is advised in steep terrain where loose snow sluffing may present an unexpected hazard.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches observed or reported in past 25hrs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Windslab and loose snow avalanches have been likely to be triggered in isolated terrain by the additional load of a skier or rider. Conditions are expected to change overnight as a new storm moves into the region and new storm slabs develop. I expect this will result in a direct action cycle of storm slab avalanches. As the load increases over the next few days we will be looking closely at recent persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche reports from the weekend included several size 1 loose dry avalanches on a variety of aspects, and a few isolated size 1.5 wind slabs triggered on northeast aspects by explosive and natural triggers. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, expect the new snow to build fresh and touchy storm slabs. Warming and loading will also increase the likelihood of triggering persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several natural and human triggered size 1 wind slabs were reported on Monday. Over the weekend, widespread loose dry avalanches were reported, suggesting there's still lots of soft snow available to transport. Expect fresh wind slabs to form when the winds pick up on Tuesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, a natural size 1.5 wind slab was reported on a northeast aspect. An MIN report from Waterton Park on Friday shows a large size 3 deep persistent slab avalanche triggered by a smaller wind slab on a feature with highly variable snow depths. Although an isolated event, this avalanche highlights the possible consequence of our tricky persistent slab problem, especially with the incoming change of weather.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few small loose wet avalanches were observed on steep south-facing aspects during the weekend. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few small loose wet avalanches were observed on steep south-facing aspects during the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A widespread natural avalanche cycle with storm slabs and loose dry avalanches occurred on all elevations with steep aspects throughout the weekend.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Poor visibility has limited avalanche observations during the storm. Recent reports include a size 1 skier triggered storm slab near Kispiox and an audible natural avalanche in the southwest part of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Triggering storms slab avalanches will remain likely in areas that receive heavier snowfall over the next few days. However, the primary concern throughout the region is the deep persistent slab problem, as large destructive avalanches remain likely with ongoing warming and loading.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches reported. Windslab and loose snow avalanches have been likely to be triggered in isolated terrain by the additional load of a skier or rider. Conditions are expected to change overnight as a new storm moves into the region and new storm slabs develop. I expect this will result in a direct action cycle of storm slab avalanches. As the load increases over the next few days we will be looking closely at recent persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. Windslab and loose snow avalanches have been likely to be triggered in isolated terrain by the additional load of a skier or rider. Conditions are expected to change overnight as a new storm moves into the region and new storm slabs develop. I expect this will result in a direct action cycle of storm slab avalanches. As he load increases over the next few days we will be looking closely at recent persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Windslab and loose snow avalanches have been likely to be triggered in isolated terrain by the additional load of a skier or rider. Conditions are expected to change overnight as a new storm moves into the region and new storm slabs develop. I expect this will result in a direct action cycle of storm slab avalanches. As the load increases over the next few days we will be looking closely at recent persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches observed or reported in past 24hrs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few small loose wet avalanches were observed on steep south-facing aspects during the weekend. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Storm slabs are developing with loading from new snow and wind. I expect this will result in a direct action cycle of storm slab avalanches. As the load increases over the next few days we will be looking closely at persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Expect new snow and wind to build fresh and touchy wind slabs. Warming and and increased loading will also give a rise to the likelihood of triggering persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several natural and human triggered size 1 wind slabs were reported on Monday. Expect fresh wind slabs to form and avalanche activity to increase as the wind continues to blow and snow starts to fall Tuesday evening through Wednesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Mountain Information Network (MIN) report from Waterton Park on Friday shows a large size 3 deep persistent slab avalanche triggered by a smaller wind slab on a feature with highly variable snow depths. Although an isolated event, this avalanche highlights the possible consequence of our tricky persistent slab problem, especially with the incoming change of weather.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Limited observations with the inclement weather, but no new reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Limited observations but no new reported. I expect a widespread cycle is imminent starting Tuesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> I expect that a natural storm slab avalanche cycle is on-going in the south of the region near Terrace and also near Kitimat. The peak of the storm may have already passed through the north of the region. We have not had any reports of persistent slab avalanches, but that may be due to poor visibility and travel conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect developing storm slabs to be easy to trigger where they are sitting on a weak layer of surface hoar and/or a crust left behind after the cold and windy weather. Full depth avalanches continue to be a concern due to the weak facetted snowpack below the hard wind slabs left behind after strong winds from several directions. This deep persistent weak layer may take prolonged warm weather with consistent snowfall to settle and bond. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A person walking at 600 metres elevation triggered a wind slab avalanche 100 cm deep and 20 metres wide on a smooth north aspect that released a size 2.0 avalanche burying one person with just their hand exposed. The person was rescued by their companion. This happened in the Selkirks between Sale Mtn and Keystone Basin. Conditions are expected to deteriorate overnight as a new storm moves into the region and storm slabs continue to develop. I expect this will result in a direct action cycle of storm slab avalanches. As the load increases over the next few days we will be looking closely at recent persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. Windslab and loose snow avalanches have been likely to be triggered in isolated terrain by the additional load of a skier or rider. Conditions are expected to change overnight as a new storm moves into the region and new storm slabs develop. I expect this will result in a direct action cycle of storm slab avalanches. As the load increases over the next few days we will be looking closely at recent persistent weak layers and discussing the likelihood of these layers failing under the new load of storm snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Conditions are expected to change overnight as a storm moves into the region and new storm slabs develop. As the load increases over the next few days expect the likelihood of deeper buried layers failing to increase under the new load of snow combined with wind and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Two naturally triggered size 2.0 slab avalanches were observed today. One occurred on a West aspect of Mt Engadine in an Alpine feature. The other avalanche occurred at Treeline on a steep North aspect. Both of these avalanches appeared to have failed on the basal facets and ranged between 60 an 80cm deep.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports indicate several natural avalanches to size 2.5 and 3. These avalanches were occurring on all aspects in the alpine and are isolated to the most recent storm snow. I would expect that skier and rider triggered avalanches will remain likely as the storm snow gets a chance to settle and bond. There was an avalanche involvement in the North Columbia in a low elevation wind loaded pocket releasing on facets down 1 metre, resulting in a full burial. This is something to keep in mind while traveling through open areas below tree line. Click here to see the </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/purcells?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_B5813F7D">MIN</span></a><span class="s_3FE45715"> post.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new significant avalanche activity to report. Warm temperatures and the recent increase in load will give a rise to the likelihood of triggering persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Explosive control released storm slabs up to size 2.0 in the alpine that were 10-20 cm deep on Wednesday. Natural avalanches were heard during the day on Wednesday but poor visibility limited observations. Natural wind slabs and natural cornice falls were reported up to size 1.5 on Tuesday. Several natural and human triggered size 1 wind slabs were reported on Monday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. We continue to be concerned for triggering the weak facetted layers in the snowpack, and our uncertainty revolves around what type of loading or weak spots are required for human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Observations are still limited by the inclement weather, but reports of widespread storm slab avalanche activity are trickling in. In the southern part of the region, reports from Tuesday include stubborn soft storm slabs triggered with explosives and ski-cutting at alpine elevations, with just snowballing at treeline and below. However, reports from the northern part of the region on Tuesday include widespread natural and explosive-triggered storm slab avalanches up to Size 2.5 well below treeline.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include widespread natural wet slab avalanches up to Size 3, and loose wet activity up to Size 2, in the southern part of the region. Meanwhile in the northern parts initial reports include widespread storm slab avalanches up to Size 2.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Natural storm slab avalanches were reported on Tuesday up to size 2.5 near Terrace, as well as loose wet avalanches to size 1.5 below treeline a little northwest of Terrace. I suspect that widespread natural activity will be reported once travel and visibility conditions improve.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Expect developing storm slabs to be easy to trigger where they are sitting on a weak layer of surface hoar and/or a crust left behind after the cold and windy weather. Full depth avalanches continue to be a concern due to the weak facetted snowpack below the hard wind slabs left behind after strong winds from several directions. This deep persistent weak layer may take prolonged warm weather with consistent snowfall to settle and bond. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A person walking at 600 metres elevation triggered a wind slab avalanche 100 cm deep running on a facet layer. It was 20 metres wide on a smooth north aspect that released a size 2.0 avalanche burying one person with just their hand exposed. The person was rescued by their companion. This happened in the Selkirks between Sale Mtn and Keystone Basin. Click here to see the </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/purcells?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_B5813F7D">MIN</span></a><span class="s_3FE45715"> post. Recent reports indicate several natural avalanches to size 2.5 and 3. These avalanches were occurring on all aspects in the alpine and are isolated to the most recent storm snow. There were also a few skier controlled avalanches to size 2 releasing as a storm slab in the upper tree line elevation band. I would expect that skier and rider triggered avalanches will remain likely for the next few days as the storm snow gets a chance to settle and bond. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports indicate a size 2.5 remotely triggered avalanche 70cm deep and running on a west aspect at 2100m.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were generally no new avalanches reported on Tuesday except for a recent Size 2.5 natural wind slab avalanche on a west facing alpine slope, which was likely triggered by strong southerly winds loading surface hoar and facets. Expect continued natural wind and storm slab avalanche activity with heavy loading from snow and wind, and lingering human-triggered avalanche potential for the forecast period. Also, expect deeper persistent weaknesses to become more reactive with continued snow and wind-loading and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports have been limited by the inclement weather, but include evidence of natural wet loose avalanche activity up to Size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports over the past few days indicate several natural and explosives triggered avalanches to size 2.5 and 3. These avalanches were occurring on all aspects in the alpine and tree line and are isolated to the most recent storm snow. There were also reports of several skier and rider triggered avalanches to size 1.5 in both the alpine and tree line. Some of these were remotely triggered from a distance. There was an avalanche involvement in the North Columbia in a low elevation wind loaded pocket releasing on facets down 1m resulting in a full burial. This is definitely something to keep in mind while traveling through open areas below tree line. Click here to see the </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/purcells?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_B5813F7D">MIN</span></a><span class="s_3FE45715"> post.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports indicate some explosives triggered avalanches to size 2 in the alpine on west and north aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, numerous natural and explosive triggered storm slab avalanches in the size 2-3 range were reported on north and east aspects. Avalanches running into lower elevations entrained significant amounts of moist snow. Human triggering avalanches in the storm snow will remain likely on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, avalanche reports were limited to a size 1 skier triggered wind slab on a steep convex below treeline feature. We continue to be concerned about triggering the weak faceted layers in the snowpack, and our uncertainty revolves around what type of loading or weak spots are required for human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include continued widespread natural slab avalanches up to Size 3 with crowns up to 80 cm thick. Reports from avalanche control on Thursday include widespread very touchy 40-50cm thick storm slab avalanches up to Size 2 running on a weakness within the recent storm snow, with remote triggers and widespread propagation. There were also a number of 1+m thick slab avalanches up to Size 2.5 running on the rain crust from Monday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include continued widespread natural slab avalanches up to Size 3 with crown up to 80 cm thick. A remotely triggered 70-185 cm thick Size 2 wind slab was also reported. It was triggered by a skier 5 m away on the ridge.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, widespread natural avalanches were reported throughout the region. These included size 2 storm slabs and size 2-3 persistent slab avalanches releasing on old surface hoar layers. Loose wet avalanches were reported out of steep terrain below 1200 m. Natural avalanche activity will taper off with the dry and cool weather, but human triggering of storm and persistent slabs will remain likely.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, several loose wet avalanches were reported from steep rocky terrain at lower elevations where rain fell on snow. Storm slabs sitting on a weak layer of surface hoar and/or a crust are likely easy to trigger at higher elevations. Full depth avalanches continue to be a concern due to the weak faceted snowpack below old hard wind slabs. This deep persistent weak layer may take prolonged warm weather with consistent snowfall to settle and bond.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Earlier in the week a person walking at 600 metres elevation triggered a wind slab avalanche 100 cm deep running on a facet layer. It was 20 metres wide on a smooth north aspect that released a size 2.0 avalanche burying one person with just their hand exposed. The person was rescued by their companion. Click here to see the </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/purcells?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_B5813F7D">MIN</span></a><span class="s_3FE45715"> post. Recent reports over the past two days indicate several natural avalanches to size 2.5 and 3. These avalanches were occurring on all aspects in the alpine and are isolated to the most recent storm snow. There were also a few skier controlled avalanches to size 2 releasing as a storm slab in the upper tree line elevation band.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports indicate a size 2.5 remotely triggered avalanche 70cm deep and running on a west aspect at 2100m. Additionally several Natural avalanches running to size 3.5 on west to north aspects in the alpine and tree line. One was reported to have stepped down the persistent weakness buried in mid December. There are also several reports of steep cut banks at low elevations (below 1400m) releasing as slab avalanches down to the early season crust. Click </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/north-columbia?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B"> for a MIN report in the North Columbia region of a full burial due to a low elevation avalanche releasing on a smooth bed surface. This was remotely  triggered from a flat trail at the bottom of the slope.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday include widespread natural and human-triggered 20-40 cm thick Size 1-2 storm slab avalanches. Expect continued natural wind and storm slab avalanche activity with heavy loading from snow and wind, and lingering human-triggered avalanche potential for the forecast period. Also, expect deeper persistent weaknesses to become more reactive with continued snow and wind-loading and warm temperatures.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No avalanches today</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports have been limited by the inclement weather, but include evidence of natural wet loose avalanche activity up to Size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche activity has been on a slow decline. Reports from Tuesday and Wednesday indicate several natural and explosives triggered avalanches to size 2.5 and 3. These avalanches were occurring on all aspects in the alpine and tree line and are isolated to the most recent storm snow. There were also reports of several skier and rider triggered avalanches to size 1.5 in both the alpine and tree line. Some of these were remotely triggered from a distance. There was an avalanche involvement in the North Columbia in a low elevation wind loaded pocket releasing on facets down 1m resulting in a full burial. This is definitely something to keep in mind while traveling through open areas below tree line. Click here to see the </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/purcells?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_B5813F7D">MIN</span></a><span class="s_3FE45715"> post.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports indicate some explosives triggered avalanches to size 2 in the alpine on west and north aspects over the last few days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, explosive control produced several size 1.5-2.5 storm slabs on north and east alpine slopes. Human triggering avalanches in the storm snow may remain likely at higher elevations over the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Friday. On Thursday, avalanche reports were limited to a size 1 skier-triggered wind slab on a steep convex below treeline feature.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs may remain possible to trigger in isolated locations over the weekend. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack, although uncertainty revolves around what type of loading or weak spots are required for human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday indicate storm slabs (to Size 2.5) are still possible to trigger in the alpine and at treeline. In the past three days, widespread natural slab avalanches up to Size 3 with crowns up to 80 cm thick occurred. Reports from avalanche control on Thursday include widespread very touchy 40-50cm thick storm slab avalanches up to Size 2 running on a weakness within the recent storm snow, with remote triggers and widespread propagation. There were also a number of 1+m thick slab avalanches up to Size 2.5 running on the rain crust from Monday. All this new snow will take time to settle: Conservative terrain use is essential this weekend. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've had a widespread natural avalanche cycle this week, including a spooky Size 3 early Thursday morning that buried the Duffey Lake road 5 metres + deep. Reports from Wednesday and Thursday included widespread natural slab avalanches up to Size 3 with crowns up to 80 cm thick. A remotely triggered 70-185 cm thick Size 2 wind slab was also reported. It was triggered by a skier 5 m away on the ridge. Lastly, below treeline areas up the Lillooet / Meager drainages have been very touchy and danger is likely to remain higher in this zone. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the Terrace area on Thursday or Friday (possibly due to poor visibility). Further north, natural and explosive triggered avalanches in the size 2-2.5 range continue to be reported in the storm snow and on deeper persistent layers. Avalanches will become less likely at lower elevations as the saturated snow freezes, however triggering storm and persistent slabs will remain possible at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, loose dry avalanches were reported in the alpine and loose wet avalanches were reported below treeline. Storm slabs sitting on a weak layer of surface hoar and/or a crust are likely easy to trigger at higher elevations. Full depth avalanches will continue to be a concern for some time due to the weak faceted lower snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche activity has been on a slow decline since the recent storm. Reports from Tuesday and Wednesday show several natural avalanches to size 2.5 and 3. These avalanches were occurring on all aspects in the alpine and are isolated to the most recent storm snow. There were also a few skier controlled avalanches to size 2 releasing as a storm slab in the upper tree line elevation band. Earlier in the week a person walking at 600 metres elevation triggered a wind slab avalanche 100 cm deep running on a facet layer. It was 20 metres wide on a smooth north aspect that released a size 2.0 avalanche burying one person with just their hand exposed. The person was rescued by their companion. Click here to see the </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/purcells?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_B5813F7D">MIN</span></a><span class="s_3FE45715"> post. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There has been a decline in the avalanche activity as the week comes to a close. Reports from Tuesday and Wednesday showed a size 2.5 remotely triggered avalanche 70cm deep and running on a west aspect at 2100m. Additionally several Natural avalanches running to size 3.5 on west to north aspects in the alpine and tree line. One was reported to have stepped down the persistent weakness buried in mid December. There were also several reports of steep cut banks at low elevations (below 1400m) releasing as slab avalanches down to the early season crust. Click </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/north-columbia?panel=mountain-information-network-submissions%2F2b9c80d2-0a25-4855-aaad-0b01eb4d88e0" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B"> for a MIN report in the North Columbia region of a full burial due to a low elevation avalanche releasing on a smooth bed surface. This was remotely triggered from a flat trail at the bottom of the slope on Tuesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Conditions are touchy in some sections of the Rossland range: On Thursday there was a skier triggered size 2 with a full burial, running on the mid November crust, west aspect near 2000m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday several natural, explosive and human triggered storm slabs were reported primarily on northerly aspects at treeline and alpine elevations. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect lingering human-triggered avalanche potential for the forecast period. Also, expect deeper persistent weaknesses (basal facets, mid-November rain crust, mid December surface hoar / facets) to become more reactive with the new snow, wind-loading and warm temperatures. Time to dial back the terrain use!</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanches were observed on Friday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Recent reports have been limited by the inclement weather, but include evidence of natural loose wet avalanche activity up to Size 1.5 during the week.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, several skier triggered storm slabs and wind slabs up to size 1.5 were reported. Explosives also triggered a size 3 storm slab. All this activity was the recent storm snow releasing on the old surface and the slabs were 20-60 cm thick. No new natural avalanches were reported on Friday. On Wednesday and Thursday, widespread natural avalanches up to size 3 were being observed. Avalanche activity was observed on all aspects but north and east aspects saw the highest frequency of reports. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, the recent storm snow is expected to remain reactive in isolated areas including wind loaded terrain features and steep unsupported or convex features. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, explosives triggered numerous storm slabs up to size 2.5 plus one size 3. These slabs were typically 30-60 cm thick and were reported on most aspects. On Wednesday and Thursday, a natural avalanche cycle up to size 2.5 was observed. During the storm, only one natural avalanche was observed to have stepped down to a deeper layer. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, the recent storm snow is expected to remain reactive in isolated areas including wind loaded terrain features and steep unsupported or convex features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Saturday. On Friday, explosive control produced several size 1.5-2.5 storm slabs on north and east alpine slopes. Human triggering avalanches in the storm snow may remain possible at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday. On Thursday, avalanche reports were limited to a size 1 skier-triggered wind slab on a steep convex below treeline feature.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs may remain possible to trigger in isolated locations. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We are still receiving reports of skier (accidental) triggered Size 1 to 1.5 avalanches in the recent storm snow at treeline and higher. Cornices have also been touchy at ridge crests.&nbsp;  </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche control work with explosives resulted in storm slab and cornice releases to Size 2.5. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've had a widespread natural avalanche cycle this week, including a spooky Size 3 early Thursday morning that buried the Duffey Lake road 5 metres + deep. Avalanche control work in the northwest of the region gave several large avalanches sized 2.5 to 4, running full depth (1.5m crown) on the storm snow layer. Reports from Wednesday and Thursday included widespread natural slab avalanches up to Size 3 with crowns up to 80 cm thick. Lastly, below treeline areas up the Lillooet / Meager drainages have been touchy and danger is likely to remain higher in this zone.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Evidence of widespread natural activity during last week's storm has been reported throughout the region. In the southern part of the region, size 2 to 3 avalanches released in the storm snow as well as on deeper surface hoar layers (likely the January 5th). Avalanches will become less likely at lower elevations as the wet snow freezes, however triggering storm and persistent slabs will remain possible at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche reports include both slab and loose avalanche that occurred during last week's storm. This includes a large deep persistent slab avalanche in the Smithers area that released on weak snow near the the ground. The avalanche occurred on a cross-loaded feature, and was likely triggered by a smaller wind slab avalanche stepping down to weak basal facets over a metre deep. Reports from the Howson range include isolated slab avalanches up to size 2.5 in steep alpine terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking ahead expect n</span><span class="s_3FE45715">atural avalanche activity to taper off, but human triggering of storm and persistent slabs to remain possible at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, a natural size 3 storm slab avalanche was observed on a west aspect at 2500 m in the far north of the region. This occurred on a convex glacial feature and the slab was 80 cm thick. Other natural activity included a size 2.5 cornice release which triggered a 50 cm thick slab on a north aspect at 2400 m and loose wet avalanches from steep rocky sun exposed terrain below treeline. Skiers triggered storm slabs up to size 1.5 and explosives triggered storm slabs up size 3 on most aspects at treeline and in the alpine. On Wednesday and Thursday, widespread natural avalanches up to size 3 were being observed. Avalanche activity was observed on all aspects but northwest through east aspects saw the highest frequency of reports. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, the recent storm snow is expected to remain reactive in isolated areas including wind loaded terrain features and steep unsupported or convex features.  </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, a </span><span class="s_3FE45715">natural size 3 storm slab avalanche was observed on a west aspect at 2500 m in the northern Monashees. This occurred on a convex glacial feature and the slab was 80 cm thick. An avalanche accident was reported in the Allen Creek riding area and up to 6 people may have been buried but details are still limited. Three large remotely triggered avalanches were also reported on Friday. Two of these were expected to have released on the mid-January layer below the recent storm snow. The third released on mid-December layer down around 80 cm and was triggered from 100 m away. Explosives triggered four persistent slab avalanches size 2.5-3 which are expected to have released on the mid-December layer down around 1.5 m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, the recent storm snow is expected to remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features. The mid-December weak layer is a real concern for the region and persistent slab avalanches remain possible. It may be possible to trigger this layer in shallow snowpack areas and smaller storm slab avalanches could step down to this layer in all areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We had a great MIN report of a cornice-triggered Size 2 on Friday near Cabin Peak in the Bonnington range. The initial failure was in the storm slab on a southeast aspect near 2000m, which stepped down to trigger a weaker layer deeper in the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We also had a MIN report of a skier-triggered Size 2 on Thursday in the Rossland range. The failure was a deep persistent slab on a cross-loaded west-facing slope, possibly running on mid December facets or even the November rain crust / facet combination. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche control in the eastern part of the region gave several Size 2.5 - 3 avalanches running within the storm slab layers on easterly aspects, and some gouging down to ground or into faceted layers deeper in the snowpack, and running full path. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new today.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, skiers were triggering a few small size 1 wind slabs in wind loaded terrain features resulting from recent moderate southwest wind. One natural size 1.5 cornice release was also observed. On Friday, a couple natural size 2 cornice releases triggered wind slabs. These were at around 2500 m elevation on northeast and east aspects. Several skier triggered storm slabs and wind slabs up to size 1.5 were also reported. Explosives also triggered one size 3 storm slab. All this activity was the recent storm snow releasing on the old surface and the slabs were 20-60 cm thick. On Wednesday and Thursday during the storm, widespread natural avalanches up to size 3 were being observed. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, lingering wind slabs are expected to be the main concern. These should be expected in wind exposed terrain on aspects loaded by the recent southwest wind. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, explosives triggered several persistent slab avalanches up to size 2.5 in the Bugaboos area above 2600 m elevation but details are very limited.  It appears that one stepped down to the mid-November crust and several released on the ground.  One explosive triggered size 1.5 wind slab avalanche was also reported from the Dogtooth range which had a slab thickness of 20 cm.  On Friday, explosives triggered numerous storm slabs up to size 2.5 plus one size 3. These slabs were typically 30-60 cm thick and were reported on most aspects. On Wednesday and Thursday, a natural avalanche cycle up to size 2.5 was observed. During the storm, only one natural avalanche was observed to have stepped down to a deeper layer. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, lingering wind slabs are expected to be the main concern. These should be expected in wind exposed terrain on aspects loaded by the recent southwest wind. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on the weekend. Human triggering wind slabs will remain possible at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on the weekend. Wind slabs are possible to trigger in isolated locations, but the main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2 natural storm slab avalanche was reported Sunday near Blackcomb. The crown was 50-100cm high, on a west/southwest aspect near 2100m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2 (from Friday into Saturday) was reported on a north facing alpine feature near Blackcomb: Natural cornice fall triggered a slab below, but it did not step down to deeper layers. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reported. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the weekend there were several reports of natural and skier triggered wind slabs in the size 1-1.5 range, primarily on west aspects. Evidence of a previous widespread natural avalanche cycle during last week's storm continues to be reported, where size 2 to 3 avalanches released in both the storm snow as well as on deeper surface hoar layers (likely the January 5th).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Triggering wind slabs as well as lingering persistent slabs remains a possibility at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche reports are limited to evidence of natural activity that occurred during last week's storm. This includes a large deep persistent slab avalanche in the Smithers area that released on weak snow near the the ground. The avalanche occurred on a cross-loaded feature, and was likely triggered by a smaller wind slab stepping down to weak basal facets over a metre deep.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking ahead, triggering wind slabs as well as lingering persistent slabs remains a possibility at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, skiers and snowmobilers triggered size 1 wind slabs and storm slabs.  These were 20-40 cm thick slabs.  Explosives also triggered a size 2 cornice which did not trigger a slab on the slope below and a size 1.5 loose dry avalanche.  On Friday, a natural size 3 storm slab avalanche was observed on a west aspect at 2500 m in the far north of the region. This occurred on a convex glacial feature and the slab was 80 cm thick. Other natural activity included a size 2.5 cornice release which triggered a 50 cm thick slab on a north aspect at 2400 m and loose wet avalanches from steep rocky sun exposed terrain below treeline. Skiers triggered storm slabs up to size 1.5 and explosives triggered storm slabs up size 3 on most aspects at treeline and in the alpine. On Wednesday and Thursday, widespread natural avalanches up to size 3 were being observed during the storm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, lingering wind slabs are expected to be the main concern. These should be expected in wind exposed terrain on aspects loaded by the recent southwest wind. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, two human triggered persistent slab avalanches were reported in the Allen Creek area. These both released on the mid-December layer and resulted in large avalanches, one of which buried two snowboarders.  A third rider triggered avalanche occurred in Allen Creek on Friday and five snowmobilers were buried, two of them fully buried.  Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details.  Also reported on Saturday were several size 2-3 persistent slab avalanches which were triggered with explosives on all aspects in the alpine. On Friday, t</span><span class="s_3FE45715">hree large remotely triggered avalanches occurred. Two of these released on the mid-January layer below the recent storm snow. The third released on mid-December layer and was triggered from 100 m away. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, the recent storm snow is expected to remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features. The mid-December weak layer is a real concern for the region and persistent slab avalanches remain possible. It may be possible to trigger this layer in shallow snowpack areas or smaller storm slab avalanches could step down.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Preliminary information regarding the backcountry skier fatality on Saturday is that it occurred on a S/SE facing aspect near 2050m in a cross-loaded feature. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We had a great MIN report of a cornice-triggered Size 2 on Friday near Cabin Peak in the Bonnington range. The initial failure was in the storm slab on a southeast aspect near 2000m, which stepped down to trigger a weaker layer deeper in the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We also had a MIN report of a skier-triggered Size 2 on Thursday in the Rossland range. The failure was a deep persistent slab on a cross-loaded west-facing slope, possibly running on mid December facets or even the November rain crust / facet combination.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One size 2.5 slab avalanche probably cornice triggered just below ridgeline East face of Snowpeak (2500m)</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, a natural size 2.5 avalanche was reported in steep cliffy terrain on a south aspect at 2100 m elevation. Skiers triggered two storm slab avalanches on steep south and southwest aspects. These both had a typical slab thickness of 40 cm and one of the avalanches resulted in a partial burial. Explosives also triggered a few storm slab avalanches on north and east aspects which were 15-20 cm thick slabs. On Saturday, skiers were triggering a few small size 1 wind slabs in wind loaded terrain features resulting from recent moderate southwest wind. One natural size 1.5 cornice release was also observed. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, lingering wind slabs are expected to be an isolated concern. These should be expected in steep and unsupported or convex wind loaded terrain features.&nbsp; In some areas, moderate outflow winds may have caused reverse loading and formed thin new wind slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">An early report from Monday includes a report of a skier triggering a size 2 wind slab in the Dogtooth on a southeast aspect at 2400 m. Buried surface hoar beneath the 40 cm thick wind slab is expected to have increased the reactivity of the avalanche. On Sunday, natural sluffing up to size 2 was reported on steep sun exposed slopes. A skier triggered size 2 cross loaded wind slab avalanche was reported in the Dogtooth on a northeast aspect at 2300 m elevation. This avalanche stepped down to the mid-December weak layer. Explosive use in the Bugaboos area over the weekend resulted in numerous storm slab and wind slab avalanches with typical thickness of 30-60 cm. Most of these results were in the high alpine on various aspects. A couple of these avalanches stepped down to deeper layers or the ground. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, lingering wind slabs are expected to remain a concern, especially where the slabs sit over a preserved layer of surface hoar. Wind slabs should be expected in steep, unsupported or convex leeward terrain features. In some places, moderate outflow winds may have caused reverse loading and formed thin new wind slabs in recent days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday night, two natural cornice falls were reported on northeast aspects (size 2) and did not trigger slabs on the slopes below. Human triggering wind slabs will remain possible at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Small size 1 loose dry avalanches have been reported in steep terrain. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2 natural storm slab avalanche was reported Sunday near Blackcomb. The crown was 50-100cm high, on a west/southwest aspect near 2100m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 2 (from Friday into Saturday) was reported on a north facing alpine feature near Blackcomb: Natural cornice fall triggered a slab below, but it did not step down to deeper layers. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Sunday included an impressive natural avalanche cycle observed in the South Chilcotin, where three Size 2.5-3 avalanches occurred on adjacent southwest-facing slide paths within 2 hours of each other. The crown fractures averaged a metre in depth and all initiated at treeline elevation. Direct sunlight was determined to be the trigger of these slides. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the weekend there were several reports of natural and skier triggered wind slabs in the size 1-1.5 range, primarily on west aspects. Evidence of a previous widespread natural avalanche cycle during last week's storm was also reported, where size 2 to 3 avalanches released in both the storm snow as well as on deeper surface hoar layers (likely the January 5th). Triggering wind slabs as well as lingering persistent slabs remains a possibility at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche reports are limited to a size 1 skier triggered slab avalanche on a southeast aspect at 1350 m in the Howsons. Last week, a large deep persistent slab avalanche was reported in the Smithers area that released on weak snow near the ground. The avalanche occurred on a cross-loaded feature, and was likely triggered by a smaller wind slab stepping down to weak basal facets over a metre deep. Looking ahead, triggering wind slabs as well as lingering persistent slabs remains a possibility at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, a natural size 1.5 wind slab avalanche was observed in steep unskiable terrain on an east aspect at 2100 m elevation. Solar triggered loose dry avalanches up to size 1.5 were also observed on steep southerly aspects. In the far north of the region near Blue River, a snowmobiler triggered a size 3 persistent slab avalanche on a south aspect in the alpine which released on surface hoar down 100 cm. Check out the MIN post for more details. In the south of the region, skiers triggered a few size 1 wind slabs above 2100 m elevation. South of Mica in the Selkirks, explosives triggered one size 3 storm slab avalanche on a northeast aspect at 2300 m which stepped down to a deeper layer in the snowpack and ran full path breaking a mature tree. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, lingering wind slabs are expected to be an isolated concern in steep and unsupported or convex wind loaded terrain features. In the far north of the region, a persistent slab problem exists. If you are recreating in the Monshees south of Blue River or Valemount, use the Cariboos bulletin for more representative conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the weekend there were several very concerning large persistent slab avalanches that were human triggered.  At least 10 close calls were reported to us and several of these avalanches involved multiple people being buried.  Three of these avalanches were in the Allen Creek riding area and one was in the Monashees near Blue River.  These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details. Also reported over the weekend were natural storm slab avalanches up to size 3, natural storm slab avalanches stepping down to the mid-Dec layer, and remotely triggered avalanches triggered from up to 100 m away.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, the recent storm snow is expected to remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features where buried surface hoar remains reactive. The mid-December weak layer continues to be a real concern for the region and persistent slab avalanches remain possible. It may be possible to trigger this layer in shallow snowpack areas or smaller storm slab avalanches could step down.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Preliminary information regarding the backcountry skier fatality on Saturday is that it occurred on a S/SE facing aspect near 2050m in a cross-loaded feature. Reports from Sunday include several natural Size 1-1.5 wind slab avalanches that occurred on a northwest aspect after a bout of rapid wind loading over the morning.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We also had a great MIN report of a cornice-triggered Size 2 on Friday near Cabin Peak in the Bonnington range. The initial failure was in the storm slab on a southeast aspect near 2000m but more significantly was observed stepping down to trigger a weak layer deeper in the snowpack. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Aside from Size 1 ski cut results down about 7cm in our new snow, no new avalanches have been reported. With that said, it is recommended to monitor the depth and reactivity of new snow as you travel, keeping in mind the potential for terrain traps to amplify the consequences of small avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, avalanche activity generally tapered-off. However, explosives control triggered a couple of size 1-1.5 slab avalanches at treeline and in the alpine in the southeast corner of the region. These isolated slab avalanches, which failed on a recently buried facet / surface hoar interface, were up to 40cm deep at the crown and ran up to 150m</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, lingering wind slabs are expected to be an isolated concern. These should be expected in steep and unsupported or convex wind loaded terrain features. In some areas, recently buried facets and surface hoar may prolong the reactivity of near-surface slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Monday include 2 skier-triggered size 2 wind slab avalanches in the Dogtooth Range. Buried surface hoar beneath the 35 cm thick wind slab is expected to have increased the reactivity of the avalanches which ultimately stepped down to the deeper mid-December facet layer. One avalanche occurred on a northeast aspect while the other occurred on a west aspect. They were both, however, cross-loaded alpine features.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Moving forward, lingering wind slabs are expected to remain a concern, especially where the slabs sit over a preserved layer of surface hoar. Wind slabs should be expected in steep, unsupported or convex leeward terrain features. In some places, moderate outflow winds may have caused reverse loading and formed thin new wind slabs in recent days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">One natural cornice fall size 2.0 released on a northeast aspect at 2100 metres. Some loose snow sloughing has also been reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Small size 1 loose dry avalanches have been reported in steep terrain. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Monday include a MIN observation of several recent Size 1 avalanches having released naturally near ridgetop on north to northwest aspects in the Whistler area. The report also alludes to skier traffic producing results up to Size 2 the same day. Other recent reports include a Size 2 natural storm slab avalanche that occurred on Sunday near Blackcomb. The crown was 50-100 cm high, on a west/southwest aspect near 2100 m. While avalanche activity as a direct result of the storm has abated, evidence of the recent natural avalanche cycle is widespread and should indicate some of the human-triggering potential that still exists in our snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">While no new avalanches were reported in the region on Monday, a natural Size 1.5 cornice release in the Pemberton area serves as a good reminder of cornices having matured considerably over the course of the recent storm. Reports from Sunday included an impressive natural avalanche cycle observed in the South Chilcotin, where three Size 2.5-3 avalanches occurred on adjacent southwest-facing slide paths within 2 hours of each other. The crown fractures averaged a metre in depth and all initiated at treeline elevation. Direct sunlight was determined to be the trigger of these slides. Another MIN post from Monday details an apparently naturally triggered Size 3.5 avalanche releasing above Upper Joffre Lake on Sunday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported from skiable terrain in the south. Some natural windslabs continue to release in the Bear Pass alpine up to size 1.5 in steep terrain. Triggering wind slabs as well as lingering persistent slabs remains a possibility at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few large avalanches up to size 3.0 were remotely triggered in the Kispiox area on Monday on south thru west aspects at 1700-1800 metres. These avalanches were about 80 cm deep and are suspected to have released on the December 25th surface hoar.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">In the south of the region where wind slabs are the primary concern, avalanche activity tapered-off somewhat on Monday. There were, however, a few exceptions in the Selkirks. Just to the west of Kinbasket Lake, a size 2 slab avalanche was skier-triggered on a south-facing alpine slope. A recently buried surface hoar layer is though to be the culprit in the event. In the same part of the region, a skier triggered a size 1.5 wind slab on a northeast facing treeline feature. Nobody was hurt in either of these slides. An anomalous size 3 deep persistent slab was also triggered by natural cornice fall in the Adamants.  The avalanche failed on glacier ice, was 200m wide, and ran 600m. A few solar-triggered slab avalanches to size 3 were also noted.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday in the far north of the region near Blue River, a snowmobiler triggered a size 3 persistent slab avalanche on a south aspect in the alpine which released on surface hoar down 100 cm. Check out the MIN post for more details. In this part of the region, a more widespread persistent slab problem exists. If you are recreating in the Monashees near Blue River or Valemount, use the Cariboos bulletin for more representative conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the last 4 days there were several very concerning large persistent slab avalanches that were human triggered. At least 10 close calls were reported to us and several of these avalanches involved multiple people being buried. Four of these avalanches were in the Allen Creek riding area and one was in the Monashees near Blue River. These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details. Also reported over the weekend were natural storm slab avalanches up to size 3, in some cases stepping down to the mid-Dec layer,</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, the recent storm snow may remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features where buried surface hoar may remain reactive. Even if surface instabilities gain strength, deeper destructive persistent slab avalanches failing on the mid-December weak layer will remain a serious concern for the foreseeable future. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Monday include details of two Size 2-3 avalanches releasing naturally on steep terrain over Sunday to Monday morning. Wind loading of a northwest aspect and solar input to a southerly aspect were determined to be the triggers of these separate events. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Preliminary information regarding the backcountry skier fatality on Saturday is that it occurred on a S/SE facing aspect near 2050m in a cross-loaded feature. Reports from Sunday include several natural Size 1-1.5 wind slab avalanches that occurred on a northwest aspect after a bout of rapid wind loading over the morning.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We also had a great MIN report of a cornice-triggered Size 2 on Friday near Cabin Peak in the Bonnington range. The initial failure was in the storm slab on a southeast aspect near 2000m but more significantly was observed stepping down to trigger a weak layer deeper in the snowpack. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Aside from recent Size 1 ski cut results down 7-15 cm in our new snow, no new avalanches have been reported. With that said, it is recommended to monitor the depth and reactivity of new snow as you travel, keeping in mind the potential for terrain traps to amplify the consequences of small avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, avalanche activity generally tapered-off; however, there was one report of a cornice failure triggering a Size 2 slab avalanche failing within the recent storm snow. On Monday, explosives control triggered a couple of size 1-1.5 slab avalanches at treeline and in the alpine in the southeast corner of the region. These isolated slab avalanches, which failed on a recently buried facet / surface hoar interface, were up to 40cm deep at the crown and ran up to 150m</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Lingering wind slabs are expected to be an isolated concern. These should be expected in steep and unsupported or convex wind loaded terrain features. In some areas, recently buried facets and surface hoar may prolong the reactivity of near-surface slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Monday include 2 skier-triggered size 2 wind slab avalanches in the Dogtooth Range. Buried surface hoar beneath the 35 cm thick wind slab is expected to have increased the reactivity of the avalanches which ultimately stepped down to the deeper mid-December facet layer. One avalanche occurred on a northeast aspect while the other occurred on a west aspect. They were both, however, cross-loaded alpine features. Reports from Tuesday include several explosives-triggered Size 2 persistent slab avalanches in cliffy terrain propagating as far as 40m across the slope and stepping down to facets and depth hoar near the ground.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Moving forward, lingering wind slabs are expected to remain a concern, especially where the slabs sit over a preserved layer of surface hoar. Wind slabs should be expected in steep, unsupported or convex leeward terrain features. In some places, moderate outflow winds may have caused reverse loading and formed thin new wind slabs in recent days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, one skier accidentally triggered size 1.0 was reported from south of Fernie that was on a northeast aspect around 1900 metres, the release was 20 cm deep. One natural cornice fall size 2.0 released on a northeast aspect at 2100 metres on Monday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Some successful explosives cornice control took place in the Whistler area on Tuesday. A few of the resulting large chunks of cornice did manage to trigger slabs below to the full depth of our storm snow, giving an idea of the reactivity that still exists in the snowpack when a big trigger is in play. With that said, failures at this layer could be described as 'low probability, high consequence' and wind slabs still form our primary avalanche hazard over the near term. A MIN report from Tuesday additionally highlights the tendency for unconsolidated storm snow to sluff easily in steep terrain, entraining loose snow into dangerous flows that require careful management.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">While no new avalanches were reported in the region on Tuesday, a natural Size 1.5 cornice release on Monday in the Pemberton area serves as a good reminder of cornices having matured considerably over the course of the recent storm. Wind slabs in immediate lee and unsupported terrain are also expected to remain reactive over the short term.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One report on Wednesday of a skier triggered wind slab size 1.0 on a convex roll at 1500 metres that was about 25cm deep. Expect avalanche size and frequency to increase as the forecast storm moves into the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. A few large avalanches up to size 3.0 were remotely triggered in the Kispiox area on Monday on south thru west aspects at 1700-1800 metres. These avalanches were about 80 cm deep and are suspected to have released on the December 25th surface hoar.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">In the south of the region where wind slabs are the primary concern, avalanche activity tapered-off somewhat on Tuesday. There was, however, one report of a cornice failure triggering a Size 1.5 thin slab on the slope below. In the Gothics, a steep cutblock ran Size 2 naturally.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">In the far north of the region near Blue River, a snowmobiler triggered a Size 2 persistent slab avalanche running on facets down 80 cm on a short slope below a rock/tree band. A snowmobiler also triggered a size 3 persistent slab avalanche on Sunday a south aspect in the alpine which released on surface hoar down 100 cm. Check out the MIN post for more details. In this part of the region, a more widespread persistent slab problem exists. If you are recreating in the Monashees near Blue River or Valemount, use the Cariboos bulletin for more representative conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the last 5 days there were several very concerning large persistent slab avalanches that were human triggered. At least 10 close calls were reported to us and several of these avalanches involved multiple people being buried. Four of these avalanches were in the Allen Creek riding area and one was in the Monashees near Blue River. These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details. Also reported on Tuesday were several natural slab avalanches up to Size 2 triggered by direct sun exposure on steep south facing slopes</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, the recent storm snow may remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features where buried surface hoar may remain reactive. Even if surface instabilities gain strength, deeper destructive persistent slab avalanches failing on the mid-December weak layer will remain a serious concern for the foreseeable future. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Aside from small loose snow releases from steep terrain, no new avalanches were reported on Tuesday. Reports from Monday include details of two Size 2-3 avalanches releasing naturally on steep terrain over Sunday to Monday morning. Wind loading of a northwest aspect and solar input to a southerly aspect were determined to be the triggers of these separate events. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Sunday include several natural Size 1-1.5 wind slab avalanches that occurred on a northwest aspect after a bout of rapid wind loading over the morning. Preliminary information regarding the backcountry skier fatality that occurred on Saturday is that it occurred on a S/SE facing aspect near 2050m in a cross-loaded feature. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We also had a great MIN report of a cornice-triggered Size 2 on Friday near Cabin Peak in the Bonnington range. The initial failure was in the storm slab on a southeast aspect near 2000m but more significantly was observed stepping down to trigger a weak layer deeper in the snowpack. This 'step down' character is keeping this report in our discussion in spite of its age.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Continued caution is recommended in lee terrain at higher elevations where pockets of wind slab may still prove reactive. At lower elevations, temperatures exceeding zero degrees may create a loose wet avalanche problem in steeper terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche activity has generally tapered-off with only reports of sluffing in steep terrain with skier-traffic. Lingering wind slabs are expected to be an isolated concern. These should be expected in steep and unsupported or convex wind loaded terrain features. In some areas, recently buried facets and surface hoar may prolong the reactivity these slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Monday include 2 skier-triggered size 2 wind slab avalanches in the Dogtooth Range. Buried surface hoar beneath the 35 cm thick wind slab is expected to have increased the reactivity of the avalanches which ultimately stepped down to the deeper mid-December facet layer. One avalanche occurred on a northeast aspect while the other occurred on a west aspect. They were both, however, cross-loaded alpine features. Reports from Tuesday include several explosives-triggered Size 2 persistent slab avalanches in cliffy terrain propagating as far as 40m across the slope and stepping down to facets and depth hoar near the ground. No significant avalanches were reported on Wednesday. Moving forward, lingering wind slabs are expected to remain a concern, especially where the slabs sit over a preserved layer of surface hoar.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches reported. On Tuesday, one skier accidentally triggered size 1.0 was reported from south of Fernie that was on a northeast aspect around 1900 metres, the release was 20 cm deep. One natural cornice fall size 2.0 released on a northeast aspect at 2100 metres on Monday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported, but a number of recent MIN reports have highlighted loose snow sluffing easily in steep terrain and forming dangerous flows that require careful management. The problem will be especially relevant on sheltered northerly aspects and may be amplified by daytime warming on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">While no new avalanches were reported in the region on Wednesday, we did receive a report of a Size 2.5 persistent slab (100 cm depth) having run naturally on a northwest aspect above Rohr Lake in the Duffey Lake area in within 24 hours of the observation. Another MIN report of an older Size 3 skier-triggered avalanche north of Gold Bridge succeeds in highlighting the instability that has been a concern in shallower snowpack areas found in the north of the region. Things have been much quieter in the Coquihalla area, but wind slabs in immediate lee and unsupported terrain are expected to remain reactive over the short term throughout the region. Recent MIN reports have also called attention to loose snow running fast and entraining considerable mass in steeper terrain. This problem will be particularly relevant on northerly aspects and may be amplified by daytime warming on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. One report on Wednesday of a skier triggered wind slab size 1.0 on a convex roll at 1500 metres that was about 25cm deep. Expect avalanche size and frequency to increase as the forecast storm moves into the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. A few large avalanches up to size 3.0 were remotely triggered in the Kispiox area on Monday on south thru west aspects at 1700-1800 metres. These avalanches were about 80 cm deep and are suspected to have released on the December 25th surface hoar. New storm slabs are expected to develop during the day on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">In the south of the region where wind slabs are the primary concern, avalanche activity tapered-off somewhat on Tuesday. There was, however, one report of Size 1 snowmobile triggered storm slab avalanche running on the mid-January surface hoar on a northeast facing treeline slope on Frisby Ridge. Isolated skier-triggered Size 1 wind and storm slabs were also reported from the Selkirks.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">In the far north of the region near Blue River, a snowmobiler triggered a Size 2 persistent slab avalanche running on facets down 80 cm on a short slope below a rock/tree band. A snowmobiler also triggered a size 3 persistent slab avalanche on Sunday a south aspect in the alpine which released on surface hoar down 100 cm. Check out the MIN post for more details. In this part of the region, a more widespread persistent slab problem exists. If you are recreating in the Monashees near Blue River or Valemount, use the Cariboos bulletin for more representative conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the last 5 days there were several very concerning large persistent slab avalanches that were human triggered. At least 10 close calls were reported to us and several of these avalanches involved multiple people being buried. Four of these avalanches were in the Allen Creek riding area and one was in the Monashees near Blue River. These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details. Also reported on Tuesday were several natural slab avalanches up to Size 2 triggered by direct sun exposure on steep south facing slopes</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, the recent storm snow may remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features where buried surface hoar may remain reactive. Even if surface instabilities gain strength, deeper destructive persistent slab avalanches failing on the mid-December weak layer will remain a serious concern for the foreseeable future. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Aside from small loose snow releases from steep terrain, no new avalanches have been reported.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">While the reports are rather dated at this point, two recent avalanche involvements remain worthy of consideration. The first, a skier fatality that occurred on Saturday in the Rossland Range took place on a S/SE facing aspect near 2050m in a cross-loaded feature. The November crust found only 60 cm deep was reported as the failure plane in this slide. The second report, found on the MIN, details a cornice-triggered Size 2 on Friday near Cabin Peak in the Bonnington range. The initial failure was in the storm slab on a southeast aspect near 2000m but more significantly was observed stepping down to trigger a weak layer deeper in the snowpack. The involvement of deep snowpack weaknesses is keeping these reports in our discussion in spite of their age.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Continued caution is recommended in lee terrain at higher elevations where pockets of wind slab may still prove reactive. Take extra care in steep terrain, where loose snow avalanches may present an unexpected hazard. Both problems can be expected to worsen with daytime warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Avalanche activity has generally tapered-off with only reports of sluffing in steep terrain with skier-traffic and sun exposure, recent glide crack releases and one relatively harmless skier triggered slab running on the mid-January weakness on a southeast aspect where it was a sun crust. Lingering wind slabs are expected to be an isolated concern. These should be expected in steep and unsupported or convex wind loaded terrain features. In some areas, recently buried facets and surface hoar may prolong the reactivity these slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include one large natural Size 2.5 triggered by a sluff out of a rock outcrop and running running to valley bottom. A skier also triggered a Size 1.5 wind slab formed from downflow winds on a steep side wall, and several Size 1.5 sluffs were triggered in rocky terrain from direct sun exposure. Reports from Tuesday include several explosives-triggered Size 2 persistent slab avalanches in cliffy terrain propagating as far as 40m across the slope and stepping down to facets and depth hoar near the ground. Reports from Monday include 2 skier-triggered size 2 wind slab avalanches in the Dogtooth Range. Buried surface hoar beneath the 35 cm thick wind slab is expected to have increased the reactivity of the avalanches which ultimately stepped down to the deeper mid-December facet layer. One avalanche occurred on a northeast aspect while the other occurred on a west aspect. They were both, however, cross-loaded alpine features. Moving forward, touchy fresh wind slabs are expected to form on northerly aspects anywhere it's windy and there's loose snow on the surface available for transport.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, one skier accidentally triggered size 1.0 was reported from south of Fernie that was on a northeast aspect around 1900 metres, the release was 20 cm deep. One natural cornice fall size 2.0 released on a northeast aspect at 2100 metres on Monday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. Forecast winds are also expected to create thin fresh slabs reactive to human triggering at upper elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent explosive cornice control has produced refrigerator size chunks that did not trigger any avalanches on the slopes below. On Thursday, a small size 1 wind slab was triggered on a crossloaded north slope in the Tantalus Range. Over the weekend, strong winds and light flurries will form fresh wind slabs in exposed areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche reports are limited to sluffing in steep terrain. Numerous reports indicate a large natural avalanche cycle occurred last week in the northern areas around Duffey Lake and the South Chilcotins. A MIN report from Hurley shows large natural slab avalanches were still reactive in the north throughout the week. Things have been much quieter in the Coquihalla area, but wind slabs in immediate lee and unsupported terrain are expected to remain reactive over the short term throughout the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Two remote triggered size 1.5 avalanches occurred in the north of the region on Thursday, both occurring on northwest aspects at just 1300 m in elevation. The interface below our recent storm snow, down 20-30 cm, was cited as the failure plane in both slides. Another report from Wednesday detailed a skier triggered Size 1 wind slab on a convex roll at 1500 metres that was about 25cm deep. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect avalanche size and frequency to increase as snowfall accumulates in the coming days. Aside from slab avalanche concerns, it should also be noted that loose wet avalanches can be expected to run out of steep terrain at lower elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported, but a few large avalanches up to size 3.0 were remotely triggered in the Kispiox area on Monday on south through west aspects at 1700-1800 metres. These avalanches were about 80 cm deep and are suspected to have released on the December 25th surface hoar. New storm slabs are expected to continue developing through Saturday. Aside from being a problem in their own right, these slabs will introduce a new load above our deeper snowpack weaknesses and increase their likelihood of triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">In the south of the region where wind slabs are the primary concern, avalanche activity tapered-off somewhat since Tuesday. In the far north of the region near Blue River, a snowmobiler triggered a Size 2 persistent slab avalanche running on facets down 80 cm on a short slope below a rock/tree band on Tuesday. A snowmobiler also triggered a size 3 persistent slab avalanche on Sunday a south aspect in the alpine which released on surface hoar down 100 cm. Check out the MIN posts for more details. In this part of the region, a more widespread persistent slab problem exists. If you are recreating in the Monashees near Blue River or Valemount, </span><a id='GoToAdded' href="http://www.avalanche.ca/forecasts/cariboos" target="_blank"><span class="s_B5813F7D">use the Cariboos bulletin </span></a><span class="s_3FE45715">for more representative conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the pat week there were several very concerning large persistent slab avalanches that were human triggered. At least 10 close calls were reported to us and several of these avalanches involved multiple people being buried. Four of these avalanches were in the Allen Creek riding area and one was in the Monashees near Blue River. These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details. Also reported on Thursday were a few natural avalanches up to Size 2 triggered by direct sun exposure.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, the recent storm snow may remain reactive to human triggering in wind loaded terrain and steep unsupported or convex features where buried surface hoar may remain reactive. Even if surface instabilities gain strength, deeper destructive persistent slab avalanches failing on the mid-December weak layer will remain a serious concern for the foreseeable future. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanches have been reported. Warmer alpine temperatures over the weekend may make the persistent slabs more touchy in thin snowpack areas. Although persistent slabs were inactive this past week, they produced large avalanches last weekend in the Bonnington and Rossland ranges and deserve careful consideration what selecting terrain. Strong winds may also form fresh wind slabs in exposed areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One sz 2 triggered from a cornice collapse on a N aspect.  This was observed over on Friday but most likely occurred earlier in the week. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Continued caution is recommended in lee terrain at higher elevations where pockets of wind slab may still be reactive. Take extra care in steep terrain, where loose snow avalanches may present an unexpected hazard.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche activity reports have greatly diminished. Beside relatively harmless sluffs, there was a single report of a rider-triggered size 2 avalanche 40 cm deep, on a south aspect. It released on the mid-January surface hoar / facet layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche reports from last week were most commonly located in alpine terrain around rocky or cross-loaded terrain with variable or thin snow cover. At least one ran all the way to valley bottom. Although smaller ones only involved the upper recent snow, the bigger ones were triggered in, or stepped down to, the mid-Dec facets. Moving forward, touchy fresh wind slabs are expected to form on northerly aspects anywhere it's windy and there's loose snow on the surface available for transport.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new natural avalanches have been reported, but small pockets of wind slab were found reactive to ski cutting on Saturday. A similar report from Friday details a Size 1 wind slab avalanche triggered by a skier on a northeast facing slope in the north of the region. Our ongoing strong winds can be expected to continue forming thin, reactive slabs while loose snow remains available for transport.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. Ongoing winds have also been observed creating thin fresh slabs reactive to human triggering at upper elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Size 1 wind slabs have been reactive to skier triggers in steep chutes and gullies. Recent explosive cornice control has produced refrigerator size chunks that did not trigger any avalanches on the slopes below. On Sunday, strong winds and light flurries will form fresh wind slabs in exposed areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, two skiers were caught in a size 2 wind slab avalanche that carried them down a steep north facing couloir in the Coquihalla area. Old wind slabs are likely lingering in immediate lee terrain, and new wind slabs will likely form on Sunday. Larger wind slabs are expected in the northern areas around Duffey Lake and the South Chilcotins, where there are greater amounts of snow in the forecast and widespread surface hoar on the surface.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Our storm is unfortunately obscuring visibility of higher elevation terrain where the bulk of avalanche activity is expected to be ongoing. With that said, explosives control in the Stewart area on Friday yielded numerous storm slab results results to Size 2 with crown depths of 25-60 cm. Numerous loose wet avalanches have also been reported at highway elevations. Avalanche size and frequency is expected to increase as snowfall continues to accumulate. Aside from slab avalanche concerns, it should also be noted that loose wet avalanches can be expected to continue running out of steep terrain at lower elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Stormy weather has been obscuring visibility of higher elevation avalanche terrain, but warm valley temperatures have allowed numerous loose wet avalanches to be observed occurring at lower elevations. Reports from earlier in the week included a few avalanches up to size 3.0&nbsp; remotely triggered in the Kispiox area on Monday on south through west aspects at 1700-1800 metres. These avalanches were about 80 cm deep and are suspected to have released on the December 25th surface hoar. Aside from new storm slabs being formed and becoming a problem in their own right, it should be noted that these slabs are introducing a new load above our deeper snowpack weaknesses, increasing their likelihood of triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the south of the region where wind slabs are the primary concern, avalanche activity has tapered-off somewhat since Tuesday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the far north of the region near Blue River, a snowmobiler triggered a Size 2 persistent slab avalanche running on facets down 80 cm on a short slope below a rock/tree band on Tuesday. A snowmobiler also triggered a size 3 persistent slab avalanche on Sunday a south aspect in the alpine which released on surface hoar down 100 cm. Check out the MIN posts for more details. In this part of the region, a more widespread persistent slab problem exists. </span><a id='GoToAdded' href="http://www.avalanche.ca/forecasts/cariboos" target="_blank"><span class="s_9255B882">If you are recreating in the Monashees near Blue River or Valemount, use the Cariboos forecast for more representative conditions.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the pat week there were several large human triggered slides. At least 10 close calls were reported to us and several of these avalanches involved multiple people being buried. Four of these avalanches were in the Allen Creek riding area, one was in the Monashees near Blue River, on was on Mt Bell near McBride. These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. Check out the MIN posts and a great video on the Frozen Pirate Snow Services Facebook page for more details. Also reported on Thursday were a few natural avalanches up to Size 2 triggered by direct sun exposure.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, the incoming storm will form windslabs on downwind side of ridges &amp; ribs, as well as crossloaded slopes. If more than 25 or 30 cm arrives, a more general (widespread) storm slab problem could develop on steep slopes. Remeber, even as surface instabilities gain strength, deeper destructive persistent slab avalanches failing on the mid-December weak layer will remain a serious concern for the foreseeable future. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanches have been reported. Strong winds may form fresh wind slabs in exposed areas. Although persistent slabs were inactive this past week, they produced large avalanches last weekend in the Bonnington and Rossland ranges and deserve careful consideration when evaluating slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Storm slab avalanches will become reactive throughout the day on Sunday, particularly on wind loaded slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, a natural size 2 wind slab avalanche was observed on a northwest aspect at 2200 m elevation in the Monashees. Skiers also triggered three size 1-1.5 wind slab avalanches on north, northeast, and southeast aspects at 2000-2300 m elevation in the Monashees. One of these was remotely triggered from 20 m away. The typical slab thickness in these avalanches was 10-15 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Ongoing moderate to strong wind with small amounts of new snow on Sunday night is expected to continue to develop touchy new winds slabs. Recent wind has been from variety of aspects and wind slabs should be expected on all aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, a MIN report from south of Panorama describes a snowmobile triggered avalanche on a south aspect with a slab thickness of 20-30 cm. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/82970f88-9d4d-48f5-8c88-636033061e70" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> A natural size 2 cornice release was also reported on a north aspect at 2600 m elevation. The cornice did not trigger a slab on the slope below. Natural size 1 loose dry avalanches were also observed on northeast aspects at 2500 m elevation in response to wind loading. A skier also triggered a size 1 wind slab avalanche on a north aspect at 2300 m elevation. The slab was 15-20 cm thick.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Ongoing moderate to strong wind with small amounts of new snow on Sunday night is expected to continue to develop touchy new winds slabs. Recent wind has been from variety of aspects and wind slabs should be expected on all aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new natural avalanches have been reported, but small pockets of wind slab were found reactive to ski cutting on Saturday. A similar report from Friday details a Size 1 wind slab avalanche triggered by a skier on a northeast facing slope in the north of the region. Our ongoing strong winds can be expected to continue forming thin, reactive slabs while loose snow remains available for transport.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. Ongoing winds have also been observed creating thin fresh slabs reactive to human triggering at upper elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Numerous small wind slabs were reactive to human triggers on northerly aspects over the weekend (in the size 1-1.5 range). Wind slabs will likely continue to be reactive to human triggers in the lee of exposed terrain the next few days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent MIN reports do a great job highlighting recent avalanche activity in the region. Wind slabs were very reactive to human triggers over the weekend, releasing numerous size 1-1.5 avalanches on north and east aspects. On Friday, two skiers were caught in a larger wind slab avalanche that carried them down a steep north facing couloir in the Coquihalla area (see MIN report). </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs will likely continue to be reactive to human triggers in the lee of exposed terrain the next few days.</span><span class="s_AA239A9B"> In thin rocky areas to the north, wind slabs could potentially step down to deeper weak layers. Thanks to everyone who's shared observations on the MIN!</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Although the storm obscured visibility of most higher elevation terrain, a number of observations of a natural avalanche cycle took place from lower elevations on Saturday. Alpine and treeline features were observed running to Size 3.5 while warm and quickly consolidating storm snow below treeline promoted both storm slab and glide avalanche activity to Size 2. Numerous loose wet avalanches have also been reported at highway elevations over the past two days. It remains to be seen to what extent avalanche activity has involved deeper persistent weaknesses, but at least two larger (Size 3-3.5) avalanches were reported failing at ground level up in the Ningunsaw area. Sustained strong winds and a changing wind direction can be expected to promote ongoing natural avalanche activity over the short term.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Stormy weather has been obscuring visibility of higher elevation avalanche terrain, but a natural cycle was at least audible and suspected to Size 3 in the Howson Range on Saturday. Warm valley temperatures also allowed a number of loose wet avalanches to be observed occurring at lower elevations on Friday. Aside from new storm slabs that have formed and become a problem in their own right, it should be noted that these slabs have introduced a new load above our deeper snowpack weaknesses, increasing their likelihood of triggering. It remains to be seen to what extent avalanche activity over Saturday and Sunday has involved these deeper persistent weaknesses, but sustained strong winds and a changing wind direction can be expected to promote instability over the short term.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, skiers triggered three size 1 wind slabs. Two of these were in the Monashees on north and northwest aspects at around 2100 m elevation and were 5-10 cm thick slabs. One was reported in the Selkirks on a northeast aspect at 2400 m elevation and had a slab thickness of 30 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Ongoing moderate to strong wind with small amounts of new snow on Sunday night is expected to continue to develop touchy new winds slabs. Recent wind has been from variety of aspects and wind slabs should be expected on all aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the far north of the region around Blue River and Valemount, a more persistent slab problem exists. Several large human triggered avalanches were reported early last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/forecasts/cariboos" target="_blank"><span class="s_9255B882">If you are recreating in the Monashees near Blue River or Valemount, use the Cariboos forecast for more representative conditions.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanches have been reported. With moderate to strong winds transporting snow in exposed terrain, expect fresh wind slabs on lee and crossloaded features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new observed or reported today. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, a size 1.5 wind slab avalanche was triggered by skier on a north facing alpine slope in the Sky Pilot area near Squamish. Expect fresh wind slabs to have formed on Sunday and be reactive to human triggers in the lee of exposed ridges.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, a natural cornice released triggered a size 1.5 wind slab in the Monashees on an east aspect at 2100 m elevation. Four natural wind slab size 1-2 were observed in the Selkirks and skiers triggered five size 1 wind slabs. Most of these were on north through east aspects in the alpine and slabs were typically 10-30 cm thick. On Saturday, one natural and a few skier triggered wind slabs were observed. One of these was remotely triggered from 20 m away. The typical slab thickness in these avalanches was 10-15 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, recently formed wind slabs are expected to remain reactive to human triggering. Winds have recently switched from south to north and wind slabs should be expected on all aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent avalanche activity in the region has been reported as thin natural and skier triggered wind slabs to size 1.5 on northerly aspects in the alpine and at tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. Ongoing moderate to strong wind at upper elevations has created thin fresh wind slabs reactive to human triggering .</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Small wind slabs were reactive to human triggers on northerly aspects over the weekend (in the size 1-1.5 range). Wind slabs may continue to be reactive in the lee of exposed terrain at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent MIN reports do a great job highlighting recent avalanche activity in the region. Wind slabs were very reactive to human triggers over the weekend in northern parts of the region, releasing numerous size 1-1.5 avalanches on north and east aspects. Wind slabs may continue to be reactive to human triggers in the lee of exposed terrain at higher elevations. In thin rocky areas to the north, wind slabs could potentially step down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the weekend alpine and tree line features were observed running to Size 3.5. Below tree line both storm and glide slab avalanche activity to Size 2 was observed. Numerous loose wet avalanches have also been reported at highway elevations over the past three days. Several avalanches involving the full depth of snowpack to size 3.5 were reported in the Ningunsaw and Bell 2 areas. One was reported a being remotely triggered by a skier from a distance of 150m away.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There were several skier, snowmobile and naturally triggered avalanches to report near Smithers on Sunday. One of these avalanches in the Microwave area involved the full depth of the snowpack and resulted in a full burial. </span><a href="https://www.facebook.com/mileskatelyn/posts/10154401483828261" target="_blank"><span class="s_9255B882">Click here for a description and images of the incident on Facebook.</span></a><span class="s_AA239A9B"> It is well worth a read. Another report in the Ashman area shows a skier triggered size 2 avalanche running on surface hoar at the storm snow and old snow interface in a sheltered area at tree line. Natural avalanches are reported to be full depth of the snowpack to size 3.5 in the alpine and at tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, one natural size 2.5 wind slab avalanche was observed in the Monashees on a northwest aspect at 2200 m elevation. Skiers also triggered four size 1-1.5 wind slabs on northwest through east aspects between 1900 and 2200 m elevation. These wind slabs were typically 20-25 cm thick and one was up to 40 cm thick. On Saturday, skiers triggered three size 1 wind slabs. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, recently formed wind slabs are expected to remain reactive to human triggering. Winds have recently switched from south to north and wind slabs should be expected on all aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the far north of the region around Blue River and Valemount, a more persistent slab problem exists. Several large human triggered avalanches were reported early last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/forecasts/cariboos" target="_blank"><span class="s_9255B882">If you are recreating in the Monashees near Blue River or Valemount, use the Cariboos forecast for more representative conditions.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several size 1 wind slab avalanches were skier triggered in the lee of ridgetops. Isolated natural wind slab activity in the size 1.5-2 from a few days ago was also reported. A large natural avalanche (size 2.5) was reported on a wind-loaded east facing slope in the Rossland range. This avalanche likely released on a deeper persistent weak layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect wind slabs to linger on lee and crossloaded features at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Mountain Information Network (MIN) report was submitted yesterday sharing a close call by a party ski-touring in the Hero's Knob area. The remotely triggered a size 2.0 slab avalanche from 100m away. This occurred at approximately 2300m on a SE aspect. The slab was reported as 80cm thick, so it is quite possible that the failure plane was the Dec 18th persistent weak layer. See the </span><a id='GoToAdded' href="http://www.avalanche.ca/map?panel=mountain-information-network-submissions%2F09a6a2ac-3ddb-47d6-976e-033712ad38d7" target="_blank"><span class="s_9255B882">MIN posting</span></a><span class="s_AA239A9B"> for more information by zooming in on the blue flag in the Hero's Knob area.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several small skier triggered avalanches were reported in the Sky Pilot area near Squamish over the weekend. Most appeared to be wind slabs on north aspects in the size 1-1.5 range. Wind slabs may linger in exposed alpine features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday and Monday, several natural wind slab avalanches up to size 2 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 10-30 cm thick. Skiers also triggered several wind slab avalanches on Monday up to size 1.5. One of these avalanches was remotely triggered from 40 m away.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, recently formed wind slabs are expected to remain reactive to human triggering, especially on steep and unsupported or convex slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, several natural wind slab avalanches up to size 2 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine. Skiers also triggered several wind slab avalanches on Monday up to size 1.5. O</span><span class="s_AA239A9B">n Sunday, a natural size 1.5 wind slab avalanche was reported near Invermere on a northwest aspect at 2600 m elevation which had a slab thickness of 50 cm. In the Dogtooth, a few small natural wind slab avalanches were observed which were 5-15 cm thick. A MIN report from the Quartz Creek area shows a sledder triggered size 2 wind slab avalanche. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/1a3361d8-c5cf-4bb2-a72d-090fc183105e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, recently formed wind slabs are expected to remain reactive to human triggering, especially on steep and unsupported or convex slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent avalanche activity in the region has been reported as natural and skier triggered wind slabs up to size 2 in the alpine and at tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. Ongoing moderate to strong wind at upper elevations has created thin fresh wind slabs reactive to human triggering .</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, isolated wind slabs up to size 1 were triggered by the weight of a rider. Wind slabs may continue to be reactive in the lee of exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent MIN reports do a great job highlighting avalanche activity in the region. Wind slabs are currently the primary concern and have been very reactive to rider triggers. The reactivity may decrease through the forecast period, however; I'd use caution on the lee of exposed terrain at higher elevations. In thin rocky areas to the north, wind slabs could potentially step down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the weekend, alpine and treeline features were observed running naturally to size 3.5 in the mountains northwest of Terrace. A few of these avalanches were thought to have failed on buried surface hoar. Several avalanches involving the full depth of snowpack to size 3.5 were also reported in the Ningunsaw and Bell 2 areas. One was reported being remotely triggered by a skier from a distance of 150m away. Moving forward, natural avalanche activity is expected to taper-off with forecast benign weather; however, large human-triggered persistent and deep persistent avalanches remain a concern. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday there were several skier, snowmobile and naturally triggered avalanches to report from riding areas to the west of Smithers. One of these avalanches in the Microwave area involved the full depth of the snowpack and resulted in a full burial. </span><a href="https://www.facebook.com/mileskatelyn/posts/10154401483828261" target="_blank"><span class="s_9255B882">Click here for a description and images of the incident on Facebook.</span></a><span class="s_AA239A9B"> It is well worth a read. Another report in the Ashman area shows a skier-triggered size 2 avalanche running on surface hoar at the storm snow and old snow interface in a sheltered area at tree line. Natural avalanches are reported to be full depth of the snowpack to size 3.5 in the alpine and at tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday and Monday, several natural wind slab avalanches up to size 2.5 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 20-30 cm thick. Skiers also triggered several wind slab avalanches on Monday up to size 1.5. One of the avalanches was remotely triggered from 15 m away.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, recently formed wind slabs are expected to remain reactive to human triggering, especially on steep and unsupported or convex slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the far north of the region around Blue River and Valemount, a persistent slab problem still exists. Several large human triggered avalanches were reported early last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab and storm slab avalanches up to size 2.5 were reported. These slabs were typically 30-50 cm thick and failed on a variety of aspects at treeline and in the alpine.  Skiers also triggered several size 1 slabs. On Sunday, a skier triggered a size 1 wind slab north of Wells Grey on a northeast aspect which was 5-15 cm thick.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, recently formed storm slabs and wind slabs are expected to remain reactive to human triggering, especially on steep and unsupported or convex slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches also remain a serious concern for the region. Last week there were numerous </span><span class="s_AA239A9B">large human triggered avalanches and several of these avalanches involved multiple people being buried. These avalanches all released on or stepped down to the mid-December weak layer down 1-1.5 m in the snowpack. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Check out this list of recent near misses which includes many in the Cariboo region.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several size 2 wind slab avalanches were skier triggered in the lee of ridgetops and a natural cornice failure was able to entrain mass on the slope below but did not pull a slab. Also reported on Monday was&nbsp; a significant large natural avalanche (size 2.5) on a wind-loaded east facing slope in the Rossland range. This avalanche likely released on a deeper persistent weak layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect wind slabs to linger on lee and crossloaded features at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanche observations have been reported. Reactive wind slabs may linger in exposed alpine features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday and Monday, several natural wind slab avalanches up to size 2.5 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 10-30 cm thick. Skiers also triggered several wind slab avalanches on Monday and Tuesday up to size 1.5. One of these avalanches was remotely triggered from 40 m away.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Fresh wind slabs are expected to remain sensitive to human triggering, especially on steep and unsupported (convex) slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, several natural wind slab avalanches up to size 2 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine. Skiers also triggered several wind slab avalanches on Monday up to size 1.5. O</span><span class="s_AA239A9B">n Sunday, a natural size 1.5 wind slab avalanche was reported near Invermere on a northwest aspect at 2600 m elevation which had a slab thickness of 50 cm. In the Dogtooth, a few small natural wind slab avalanches were observed which were 5-15 cm thick. A MIN report from the Quartz Creek area shows a sledder triggered size 2 wind slab avalanche. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/1a3361d8-c5cf-4bb2-a72d-090fc183105e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Fresh wind slabs are expected to remain sensitive to human triggering, especially on steep and unsupported (convex) slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent avalanche activity in the region has been reported as natural and skier triggered wind slabs up to size 2 in the alpine and at tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. Ongoing moderate to strong wind at upper elevations has created thin fresh wind slabs reactive to human triggering .</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a size 1 wind slab was reported from the Brandywine area. Isolated wind slabs may continue to be reactive in the lee of exposed terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, isolated wind slabs up to size 2 were reported from the Chilcotin area, primarily from west aspects above 2000 m. Wind slabs will likely remain reactive to rider triggers on the lee of exposed terrain at higher elevations. In thin rocky areas to the north, wind slabs could potentially step down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the weekend, alpine and treeline features were observed running naturally to size 3.5 in the mountains northwest of Terrace. A few of these avalanches were thought to have failed on buried surface hoar. Several avalanches involving the full depth of snowpack to size 3.5 were also reported in the Ningunsaw and Bell 2 areas. One was reported being remotely triggered by a skier from a distance of 150m away. Moving forward, natural avalanche activity is expected to taper-off with forecast benign weather; however, large human-triggered persistent and deep persistent avalanches remain a concern. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There is no recent avalanche activity to report over the last 3 days. However, on Sunday there were several skier, snowmobile and naturally triggered avalanches to report from riding areas to the west of Smithers. One of these avalanches in the Microwave area involved the full depth of the snowpack and resulted in a full burial. </span><a href="https://www.facebook.com/mileskatelyn/posts/10154401483828261" target="_blank"><span class="s_9255B882">Click here for a description and images of the incident on Facebook.</span></a><span class="s_AA239A9B"> Another report in the Ashman area shows a skier-triggered size 2 avalanche running on surface hoar at the storm snow and old snow interface in a sheltered area at tree line. Natural avalanches are reported to be full depth of the snowpack to size 3.5 in the alpine and at tree line. Although avalanche activity has tapered off, I would expect it is still possible to trigger a high consequence avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday and Monday, several natural wind slab avalanches up to size 2.5 were observed throughout the region, some triggered by cornice falls. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 20-30 cm thick. On Tuesday, three separate cornice failures triggered Size 2-2.5 wind slabs on the slope below, one stepped down to a deep persistent weakness near the ground. Skiers also triggered several wind slab avalanches on Monday and Tuesday up to size 1.5. One of the avalanches was remotely triggered from 15 m away. </span><span class="s_AA239A9B">Fresh wind slabs are expected to remain sensitive to human triggering, especially on steep and unsupported (convex) slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects in exposed terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the far north of the region around Blue River and Valemount, a persistent slab problem still exists. Several large human triggered avalanches were reported early last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab and storm slab avalanches up to size 2.5 were reported. These slabs were typically 30-50 cm thick and failed on a variety of aspects at treeline and in the alpine. Skiers also triggered several size 1 slabs. Fresh wind slabs are expected to remain sensitive to human triggering, especially on steep and unsupported (convex) slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects in exposed terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches also remain a serious concern for the region. Last week there were numerous </span><span class="s_AA239A9B">large human triggered avalanches and several of these avalanches involved multiple people being buried. These avalanches all released on or stepped down to the mid-December persistent weakness down 1-1.5 m in the snowpack. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Check out this list of recent near misses which includes many in the Cariboo region.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday no new avalanches were reported from the region. Expect wind slabs to linger on lee and crossloaded features at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanche observations have been reported. Reactive wind slabs may linger in exposed alpine features. No avalanche concerns at lower elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday and Monday, several natural wind slab avalanches up to size 2.5 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 10-30 cm thick. Since then riders have been triggering wind slab avalanches up to size 1.5. One of these avalanches was remotely triggered from 40 m away.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Fresh wind slabs are expected to remain sensitive to human triggering, especially on steep and unsupported (convex) slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, several natural wind slab avalanches up to size 2 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine. Since then, skiers and sledders have been triggering several wind slab avalanches up to size 1.5. </span><span class="s_AA239A9B"> A MIN report from the Quartz Creek area shows a sledder triggered size 2 wind slab avalanche. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/1a3361d8-c5cf-4bb2-a72d-090fc183105e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Fresh wind slabs are expected to remain sensitive to human triggering, especially on steep and unsupported (convex) slopes. Winds have recently switched from south to north and wind slabs should be expected on all aspects in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There is no recent avalanche activity to report from the last few days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Thursday. New snow and wind may build fresh wind slabs on leeward slopes.&nbsp; Sluffing is likely from steeper terrain features. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There were no new avalanche observations reported on Wednesday. Wind slabs may be reactive to rider triggers at higher elevations. In thin rocky areas to the north, wind slabs could potentially step down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There are no recent reports of natural avalanche activity from the past few days in the southern and middle portions of the region. However, in the northern most parts of the region near Bell2 or Ningunsaw there are still reports skier triggered avalanches stepping down to basal facets in the alpine and tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There is no recent avalanche activity to report over the last 3 days. It is still possible to trigger an avalanche on deeper weak layers at upper elevations either from a thin spot or a smaller avalanche stepping down.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday and Monday, several natural wind slab avalanches up to size 2.5 were observed throughout the region, some triggered by cornice falls. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 20-30 cm thick. On Tuesday, three separate cornice failures triggered Size 2-2.5 wind slabs on the slope below, one stepped down to a deep persistent weakness near the ground. Skiers and sledders have also triggered several wind slab avalanches this week up to size 1.5. </span><span class="s_AA239A9B">Fresh wind slabs are expected to remain sensitive to light triggers, especially on steep and unsupported (convex) slopes.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the far north of the region around Blue River and Valemount, a persistent slab problem still exists. Several large human triggered avalanches were reported last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab and storm slab avalanches up to size 2.5 were reported. These slabs were typically 30-50 cm thick and failed on a variety of aspects at treeline and in the alpine. Fresh wind slabs have since been (and are expected to remain) sensitive to light triggers, especially on steep and unsupported (convex) slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches also remain a serious concern for the region. Last week people triggered numerous </span><span class="s_AA239A9B">large avalanches, several of which resulted in multiple burials. These avalanches all released on, or stepped down to, the mid-December persistent weakness down 1-1.5 m in the snowpack. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Check out this list of recent near misses which includes many in the Cariboo region.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday surface sluffing and solar induced loose dry avalanches up to size 1.5 were reported. Depending on snow amounts for Friday you could see loose dry sluffing from steeper terrain features and potentially new wind slab development. The new snow will likely have a poor bond to the old snow surfaces. Expect buried wind slabs to linger on lee and crossloaded features at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On a snow survey flight today, only one new avalanche was noted. It was a sz2 that came out out of a crossloaded moraine feature. It had stepped down through the various windslabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanche observations have been reported on Thursday. Reactive wind slabs at higher elevations will be the primary concern and loose dry sluffing from steeper terrain features are likely. The new snow will have a poor bond to the old snow surfaces and firm crust.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include a large natural cornice fall in the north of the region which succeeded in triggering a small slab, as well as evidence of wind slabs continuing to release both naturally and under skier traffic to Size 2.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday and Monday, several natural wind slab avalanches up to size 2.5 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine but a few were at treeline. Slabs were typically 10-30 cm thick. Since then riders have been triggering wind slab avalanches up to size 1.5. One of these avalanches was remotely triggered from 40 m away.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for Saturday's outlook, fresh storm slabs are expected to be sensitive to human triggering, especially where they overlie weak surfaces and in wind exposed areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include details of explosives control in the north of the region producing results up to Size 1, with one cornice result succeeding in triggering a Size 2 slab over our December facet layer. Observations also exist of faceted snow near the surface sluffing fast and far under skier traffic in steep terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, several natural wind slab avalanches up to size 2 were observed throughout the region. These avalanches occurred on most aspects and were mainly in the alpine. Since then, skiers and sledders have been triggering several wind slab avalanches up to size 1.5. </span><span class="s_AA239A9B"> A MIN report from the Quartz Creek area shows a sledder triggered size 2 wind slab avalanche. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/1a3361d8-c5cf-4bb2-a72d-090fc183105e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Saturday's outlook, fresh storm slabs are expected to be sensitive to human triggering, especially where they overlie weak surfaces and in wind-exposed areas. With this in mind, the potential for storm slab avalanches to 'step down' to deeper weaknesses should not be overlooked.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There is no recent avalanche activity to report from the last few days, although I would expect avalanche activity to start to increase as new snow amounts start to accumulate over the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. The main concern continues to be the possibility of triggering the weak faceted layers deeper in the snowpack. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Thursday. New  reactive storm slabs will build through the weekend. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, several size 1 loose dry avalanches occurred from steep terrain features. New storm slabs will likely have a poor bond to the old snow surfaces and be reactive to rider triggers, especially on leeward slopes that are more wind loaded. In thin areas to the north, storm slabs could potentially step down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There are no recent reports of natural avalanche activity from the past few days in the southern and middle portions of the region. However, in the northern most parts of the region near Bell2 or Ningunsaw there are still reports of skier triggered avalanches stepping down to basal facets in the alpine and tree line.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There is no recent avalanche activity to report over the last 3 days. However, it is still possible to trigger an avalanche on deeper weak layers at upper elevations either from a thin spot or a smaller avalanche stepping down.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include a number of large natural cornice falls from north-facing alpine ridgetops. Although these failed to trigger slabs below, wind slabs were observed on Thursday releasing under skier traffic to Size 1. One notable report details a remote-triggered Size 1 persistent slab observed in the north of the region. Although it failed on a steep southerly slope and had a relatively shallow depth (20 cm), it was reported to have failed on our January 15 surface hoar and reinforces ongoing concerns for persistent slab problems in that part of the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Saturday's outlook, f</span><span class="s_AA239A9B">resh storm slabs are expected to be sensitive to light triggers, especially where they overlie weak layers present at our previous surface. In the north of the region around Blue River and Valemount, a persistent slab problem still exists and the potential for storm slab avalanches to 'step down' should be considered. Several large human triggered avalanches were reported last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include details of a remote triggered size 2.5 avalanche that occurred in the south of the region. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab and storm slab avalanches up to size 2.5 were reported. These slabs were typically 30-50 cm thick and failed on a variety of aspects at treeline and in the alpine. Fresh wind slabs have since been (and are expected to remain) sensitive to light triggers, especially on steep and unsupported (convex) slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches remain a serious concern for the region. Last week people triggered numerous </span><span class="s_AA239A9B">large avalanches, several of which resulted in multiple burials. These avalanches all released on, or stepped down to, the mid-December persistent weakness down 1-1.5 m in the snowpack. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Check out this list of recent near misses which includes many in the Cariboo region.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanche observations were reported on Thursday. New building storm slabs will likely have a poor bond to the old snow surfaces and be reactive through the weekend, potentially stepping down and initiating deep persistent slabs. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new today.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanche observations have been reported on Friday. Reactive storm slabs will be the primary concern and loose dry sluffing from steeper terrain features are likely. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday don't yet take into account our new snow, but loose snow sluffing (to Size 1) in steep terrain has been a developing theme this week, likely aided by recent faceting of surface snow. Reports from Thursday include a large natural cornice fall in the north of the region which succeeded in triggering a small slab, as well as evidence of wind slabs releasing both naturally and under skier traffic to Size 2.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for Sunday's outlook, fresh storm slabs are expected to be sensitive to human triggering, especially where they overlie weak surfaces and in wind exposed areas where slab properties will develop more quickly.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">As of Saturday afternoon we've reached the tipping point with the new snow: Touchy storm slabs (10-40cm thick) are forming (on southeast through north aspects in the alpine) resulting in natural avalanches to Size 2. The size of natural avalanches is expected to increase and the distribution expected to be widespread by Sunday afternoon: It's time to seriously dial back the terrain use and stick to simple, no consequence terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Soft slabs from the storm snow were very reactive to ski cutting and explosives control on Saturday. The size and distribution of avalanches will increase significantly by Sunday afternoon: It's time to seriously dial back the terrain use and stick to simple, low consequence terrain. The possibility of triggering the weak faceted layers deeper in the snowpack remains a concern, and storm slabs may step down to trigger larger, more destructive avalanches. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, numerous skier triggered avalanches up to size to 2 were reported near Whistler. Human triggered avalanches are expected to remain very likely throughout the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">New storm slabs will likely have a poor bond to the old snow surfaces and be reactive to human triggers, especially on leeward slopes that are more wind loaded. In thin areas to the north, storm slabs could potentially step-down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several natural avalanches to Size 2.5 were observed in lee alpine features on Friday near Shames ski hill. (Hard) wind slabs were reactive even on small, relatively low angled slopes at treeline in the same area. In the northern most parts of the region near Bell2 or Ningunsaw there are still reports of skier triggered avalanches stepping down to basal facets in the alpine and tree line.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A remote-triggered Size 2 wind slab was triggered by a skier in the Kispiox yesterday, running on basal facets. There have been no other avalanches reported over the last 3 days. However, it is still possible to trigger an avalanche on deeper weak layers at upper elevations either from a thin spot or a smaller avalanche stepping down.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday don't yet take into account our new snow, but small wind slabs again proved reactive to skier traffic over the day. Reports from Thursday include a number of large natural cornice falls from north-facing alpine ridgetops. Although these failed to trigger slabs below, wind slabs were observed on Thursday releasing under skier traffic to Size 1. One notable report details a remote-triggered Size 1 persistent slab observed in the north of the region. Although it ran on a steep southerly slope and had a relatively shallow depth (20 cm), it was reported to have failed on our January 15 surface hoar and reinforces ongoing concerns for persistent slab problems in that part of the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Sunday's outlook, f</span><span class="s_AA239A9B">resh storm slabs are expected to be sensitive to light triggers, especially where they overlie weak layers present at our previous surface. In the north of the region around Blue River and Valemount, a persistent slab problem still exists and the potential for storm slab avalanches to 'step down' should be considered. Several large human triggered avalanches were reported last week. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports include details of a remote triggered size 2.5 avalanche that occurred in the south of the region on Thursday. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab and storm slab avalanches up to size 2.5 were reported. These slabs were typically 30-50 cm thick and failed on a variety of aspects at treeline and in the alpine. Fresh wind slabs have since been (and are expected to remain) sensitive to light triggers, especially on steep and unsupported (convex) slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches remain a serious concern for the region. Last week people triggered numerous </span><span class="s_AA239A9B">large avalanches, several of which resulted in multiple burials. These avalanches all released on, or stepped down to, the mid-December persistent weakness down 1-1.5 m in the snowpack. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Check out this list of recent near misses which includes many in the Cariboo region.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanche observations were reported on Friday. Fresh storm slabs will likely have a poor bond to the old snow surfaces and be reactive through the weekend, potentially stepping down and initiating deep persistent slabs. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few loose dry avalanches up to sz 1 were observed out of steeper terrain in the alpine.  </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, there were numerous reports of human triggered avalanches up to size 2.5 running on a knife hard crust much further than expected. Human triggered avalanches are expected to be very likely throughout the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include numerous Size 1-2 storm slabs being triggered both naturally and with ski cutting, as well as with explosives control. These soft slab avalanches have been noted as very reactive to skier traffic, fast-running, and capable of entraining large amounts of loose snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for Monday's outlook, fresh storm slabs are continuing to build and should be expected to be sensitive to light triggers, especially where they overlie weak layers present at our previous surface and where exposure to wind has promoted slab formation. Loose snow avalanches are also beginning to evolve into something more than a 'good skiing problem' and should not be underestimated in terrain where they have the potential to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday include observations of numerous size 1-1.5 loose dry avalanches running both naturally and under skier traffic. Observations of storm slab avalanches have also reported, but thus far have been limited to adjacent forecast regions in the Columbias. These should be taken into consideration in spite of geography as our new snow begins to undergo settlement.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Monday's outlook, fresh storm slabs are expected to be sensitive to human triggering, especially where they overlie weak surfaces and in wind-exposed areas where slab properties will develop more quickly. With this in mind, the potential for storm slab avalanches to 'step down' to deeper weaknesses in shallow snowpack areas should not be overlooked.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As noted above, Loose snow avalanches are also beginning to evolve into something more than a 'good skiing problem' and should not be underestimated in terrain where they have the potential to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several natural and skier-remote triggered avalanches to Size 3 were reported on Sunday: storm slabs running on all aspects. Control results from Sunday morning indicated touchy conditions giving widespread results in the storm snow from Size 1 to 2.5, including sympathetic releases of slopes nearby as well!</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The size of natural avalanches is expected to increase and the distribution expected to be widespread by late Monday: It's time to seriously dial back the terrain use and stick to simple, no consequence terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Soft slabs from the storm snow (to Size 1.5) were very reactive to ski cutting and explosives control on Saturday. The size and distribution of avalanches will increase significantly by Monday afternoon: It's time to seriously dial back the terrain use and stick to simple, no consequence terrain. The possibility of triggering the weak faceted layers deeper in the snowpack remains a concern, and storm slabs may step down to trigger larger, more destructive avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, numerous skier triggered avalanches up to size to 2 were reported near Whistler. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs are likely reactive to human triggers, especially on leeward slopes that are more wind loaded. In shallow snowpack areas to the north, storm slabs could potentially step-down to deeper weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Size 2 wind slabs were remotely triggered the south Douglas zone on Saturday, releasing from shallow cross-loaded gullies. Several natural avalanches to Size 2.5 were observed in lee alpine features on Friday near Shames ski hill. (Hard) wind slabs were reactive even on small, relatively low angled slopes at treeline in the same area. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the northern most parts of the region near Bell2 or Ningunsaw there are still reports of natural and skier triggered avalanches to Size 2.5 stepping down to basal facets in the alpine and tree line.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, slab avalanches were reported in the Shootout area of Telkwa range. A remote-triggered Size 2 wind slab was set off by a skier in the Kispiox on Friday, running on basal facets. There have been few avalanches reported over the last 3 days. However, it is still possible to trigger an avalanche on deeper weak layers at upper elevations either from a thin spot or a smaller avalanche stepping down.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday include numerous Size 1-2 storm slabs being triggered both naturally and with ski cutting, as well a small number of remote triggers. These soft slab avalanches have been noted running fast and entraining large amounts of loose snow. A mid-storm interface observed approximately 15cm deep in the new snow has been particularly reactive.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Monday's outlook, f</span><span class="s_AA239A9B">resh storm slabs are continuing to build and should be expected to be sensitive to light triggers, especially where they overlie weak layers present at our previous surface and where winds have promoted slab formation. Loose snow avalanches are also beginning to evolve into something more than a 'good skiing problem' and should not be underestimated in areas where they have the potential to entrain significant mass. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the north of the region around Blue River and Valemount, a persistent slab problem still exists and the potential for storm slab avalanches to 'step down' should be considered. Several large human triggered avalanches were reported in late January. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports include details of a remote triggered size 2.5 avalanche that occurred in the south of the region on Thursday. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab and storm slab avalanches up to size 2.5 were reported. These slabs were typically 30-50 cm thick and failed on a variety of aspects at treeline and in the alpine. Fresh wind slabs have since been (and may remain) sensitive to light triggers, especially on steep and unsupported (convex) slopes.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Persistent slab avalanches remain a serious concern for the region. Late January saw people triggering numerous </span><span class="s_AA239A9B">large avalanches, several of which resulted in multiple burials. These avalanches all released on, or stepped down to, the mid-December persistent weakness down 1-1.5 m in the snowpack. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/notableavalanches2017janfeb" target="_blank"><span class="s_9255B882">Check out this list of recent near misses which includes many in the Cariboo region.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, numerous natural avalanches to size 1.5 and explosive triggered storm slab avalanches to size 3 were reported near Kootenay Pass. The fresh storm slabs were reported as being very reactive to human triggers throughout the region. Avalanche activity is expected to increase on Monday with the additional snow and wind.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Numerous skier remote triggered avalanches up to size 1.0 on all aspects at Treeline and below. Trigger distances ranged from 3 to 40 metres. These avalanches were up to 30cm thick. and occurred on relatively low angle lightly treed slopes. Suspect numerous naturally triggered avalanches ranging from size 2.0 to 3.0 on all aspects. Visibility was very poor, and a few debris piles were directly observed today.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, there were numerous reports of human triggered avalanches up to size 2.5 running on a knife hard crust much further than expected. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday and Sunday include numerous Size 1-2 storm slabs being triggered both naturally and with ski cutting and skier traffic, as well as with explosives control. These soft slab avalanches have been noted as very reactive to skier traffic, fast-running, and capable of entraining large amounts of loose snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for Tuesday's outlook, our fresh storm slabs should be expected to remain sensitive to light triggers, especially where they overlie weak layers present at our previous surface and where exposure to wind has promoted slab formation. Loose snow avalanches have also begun to evolve into a significant hazard and should not be underestimated in terrain where they have the potential to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday and Sunday have been hampered somewhat by stormy weather, but include observations of numerous size 1-1.5 loose dry avalanches running both naturally and under skier traffic. Explosives control in the north of the region on Sunday yielded several size 1.5-2.5 storm slab results. Observations of natural and human triggered storm slab avalanches have also been reported, but thus far have been focused in adjacent forecast regions in the Columbias. These should be taken into consideration in spite of geography as our new snow begins taking on slab properties.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Tuesday's outlook, fresh storm slabs are expected to be sensitive to human triggering, especially where they overlie weak surfaces and in wind-exposed areas where slab properties will develop more quickly. With this in mind, the potential for storm slab avalanches to 'step down' to deeper weaknesses in shallow snowpack areas should not be overlooked.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As noted above, Loose snow avalanches have also begun to evolve into a genuine hazard and should not be underestimated in terrain where they have the potential to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report from Monday includes several explosive triggered storm slab avalanches up to size 2. These were typically 30-60 cm thick slabs. On Sunday, natural and human triggered avalanches up to size 3 were observed on all aspects and elevations above around 1500 m. Slabs were typically 30-40 cm thick with the thickest being up to 80 cm. A few remotely triggered avalanches were also reported with the furthest being triggered from 50 m away. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow is expected to remain very touchy on Tuesday, especially where it has been redistributed by the wind.&nbsp; Buried surface hoar, facets, and/or a sun crust may increase the reactivity and propagation propensity of these storm slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report from Monday includes numerous skier triggered storm slab avalanches size 1-1.5. Explosives also triggered storm slabs up to size 2.5. These slabs were typically around 30 cm thick. One of these storm slab avalanches stepped down to the basal weakness resulting in a slab that was up to 150 cm thick. On Sunday, explosives and skiers were triggering storm slabs up to size 2 with typical slab thickness of 30-40 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow is expected to remain very touchy on Tuesday, especially where it has been redistributed by the wind. Storm slab avalanches also have the potential to step down to the basal weakness which would drastically increase the size and destructive potential of a resulting avalanche. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, numerous skier triggered avalanches up to size to 1.5 were reported at treeline elevations on a variety of aspects south of Whistler. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in this region on Sunday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, a skier triggered a size 1 wind slab on a northwest aspect at 1400m elevation. The average slab thickness was 20 cm. Explosives also triggered several wind slab avalanches size 1.5-2.5. On Saturday, numerous natural wind slab avalanches up to size 3 were observed in the Bear Pass area. Several of these avalanches released on a basal weakness. In the northern most parts of the region near Bell2 or Ningunsaw, there are still reports as recent as Saturday of natural and skier triggered avalanches to Size 2.5 stepping down to basal facets in the alpine and at treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to create a low probability/high consequence problem for the region and very large avalanches remain possible in isolated areas, especially in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, a skier remotely triggered a size 2 wind slab avalanche on a southwest aspect at 1200 m elevation. The slab was 60 cm thick and was triggered from 10 m away. On Saturday, a natural size 2 wind slab avalanche was reported on a north aspect at 1600 m elevation with a slab thickness of 30 cm. A skier also remotely triggered a size 2 wind slab on a southeast aspect at 1400 m elevation and a snowmobiler triggered a size 2 wind slab in the Telkwa area at 1500 m elevation. On Friday, a natural size 2.5 deep persistent slab was observed in the far north of the region on a southeast aspect at 1800 m elevation which released on the ground.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to create a low probability/high consequence problem for the region and very large avalanches remain possible, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday and Sunday include observations of numerous Size 1-2 storm slabs being triggered both naturally and with ski cutting, as well a small number of remote triggers and slides stepping down to involve old wind slabs. These soft slab avalanches have been noted running fast and entraining large amounts of loose snow. A mid-storm interface observed at approximately half the depth of the new snow has been particularly reactive.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Tuesday's outlook, f</span><span class="s_AA239A9B">resh storm slabs should be expected to remain sensitive to light triggers, especially where they overlie weak layers present at our previous surface and where winds have promoted slab formation. Loose dry avalanches are another hazard to consider in areas with deeper accumulations of new snow. These should not be underestimated in terrain where they have the potential to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 1.5 slab was triggered by a ski touring party in the central part of the region on Sunday. The slide initiated in a wind loaded pocket on a southwest aspect at 2100 metres and featured a 100cm deep crown fracture. While it is not believed to have involved persistent weak layers, it does reveal the scale of recent wind slab growth as well as their remaining sensitive to light triggers in specific terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Another relatively recent report includes details of a remotely triggered Size 2.5 avalanche that occurred in the south of the region on Thursday. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, numerous explosive and skier triggered avalanches on all aspects and elevations to size 2.5 were reported near Kootenay Pass. Southwest of Nelson, there was an explosive triggered size 2.5 avalanche that reportedly stepped-down to the weak layer of surface hoar and facets that was buried mid-Janurary. This is the first recent report of an avalanche stepping-down to this deeper weak layer. On Monday, several natural storm slab avalanches to size 2.5 were reported south of Nelson.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Visibility was very limited today, but some natural avalanche activity was observed today in Alpine and Treeline terrain. One of the observed avalanches stepped down to the November persistent weak layer. We strongly suspect that a widespread avalanche cycle is occurring on all aspects and at all elevations. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, storm slabs were still reactive to riders on Hollyburn Peak. Ski cutting on small convex features were producing size 1 avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Monday are a continuation of what we've seen over Saturday and Sunday, with ample observations of Size 1-2 storm slabs being triggered on all aspects both naturally and with ski cutting. Several Size 2.5 slides ran naturally east of Nakusp and a few remotely triggered Size 1 slides were also observed in different ranges within the region. The general character of these avalanches has been described as soft or very soft slab, with a number of recent observations indicating they have been very reactive to skier traffic, fast-running, and capable of entraining large amounts of loose snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for Wednesday's outlook, our storm slabs should be expected to remain sensitive to skier and rider triggers, especially where they overlie weak layers present at our previous surface and where exposure to wind has promoted slab formation. Loose snow avalanches have also been an ongoing hazard for the past few days and should not be underestimated in steeper and confined terrain, especially where the potential exists to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Monday include numerous explosives results from Size 1-2, with a single report of a remotely triggered Size 1.5. It should be noted that these observations took place in the north and northeast of the region, where the least new snow was reported.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday and Sunday included observations of numerous size 1-1.5 loose dry avalanches running both naturally and under skier traffic. Natural and human triggered storm slab avalanches have also been reported, but thus far have been focused in adjacent forecast regions in the Columbias. These should be taken into consideration in spite of geography in the absence of local observations. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Wednesday's outlook, our storm slabs are expected to remain sensitive to human triggering, especially where they overlie weak surfaces and in wind-exposed areas where slab properties have developed more quickly. With this in mind, the potential for storm slab avalanches to 'step down' to deeper weaknesses in previously shallow snowpack areas should not be overlooked. This is especially important in areas that received the deepest accumulations of new snow.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural storm slab avalanches up to size 2.5 were observed. Explosives and skiers also triggered storm slab avalanches up to size 2. These recent avalanches have had a typical slab thickness of 30-60 cm. On Sunday, natural and human triggered avalanches up to size 3 were observed on all aspects and elevations above around 1500 m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow is expected to remain touchy on Wednesday, especially where it has been redistributed by the wind. Buried surface hoar, facets, and/or a sun crust underneath the new snow may increase the reactivity and propagation propensity of these storm slabs. If the sun comes out in full force, solar triggered avalanches are possible on south facing slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, numerous skier triggered storm slab avalanches size 1-1.5 were reported. Explosives also triggered storm slabs up to size 2.5. These slabs were typically around 30 cm thick. One of these storm slab avalanches stepped down to the basal weakness resulting in a slab that was up to 150 cm thick. On Monday in the Lizard region, natural avalanches up to size 2.5 were observed. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow is expected to remain touchy on Wednesday, especially where it has been redistributed by the wind. If the sun comes out in full force, solar triggered avalanches are possible on south facing slopes. Storm slab avalanches also have the potential to step down to the basal weakness which would drastically increase the size and destructive potential of a resulting avalanche. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, a natural size 2 and a skier triggered size 1 storm slab avalanche were reported west of Whistler.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A skier triggered size 1 persistent slab avalanche on a small convex feature southest of Bralorne. The weak layer was down 50 cm and suspected to be the surface hoar/facet layer that was buried in mid-January. This layer has been largely dormant but may become active in isolated locations where the weak layer is well preserved. Continue to dig down and test this weak layer to monitor its reactivity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Monday. On Sunday, a skier triggered a size 1 wind slab on a northwest aspect at 1400m elevation. The average slab thickness was 20 cm. Explosives also triggered several wind slab avalanches size 1.5-2.5. On Saturday, numerous natural wind slab avalanches up to size 3 were observed in the Bear Pass area. Several of these avalanches released on a basal weakness. In the northern most parts of the region near Bell2 or Ningunsaw, there are still reports as recent as Saturday of natural and skier triggered avalanches to Size 2.5 stepping down to basal facets in the alpine and at treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to create a low probability/high consequence problem for the shallow snowpack areas of the region and very large avalanches remain possible in isolated areas, especially in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Monday. On Sunday, a skier remotely triggered a size 2 wind slab avalanche on a southwest aspect at 1200 m elevation. The slab was 60 cm thick and was triggered from 10 m away. On Saturday, a natural size 2 wind slab avalanche was reported on a north aspect at 1600 m elevation with a slab thickness of 30 cm. On Friday, a natural size 2.5 deep persistent slab was observed in the far north of the region on a southeast aspect at 1800 m elevation which released on the ground.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to create a low probability/high consequence problem for the region and very large avalanches remain possible, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Monday are a continuation of what we've seen over Saturday and Sunday, with ample observations of storm slabs running both naturally and with ski cutting, generally from Size 1-1.5. A couple of natural Size 2.5 slides were observed in Glacier National Park while Saturday and Sunday saw a small number of remote triggers and slides stepping down to involve old wind slabs. Most avalanches have been described as very soft slab and several have been noted running fast and entraining large amounts of loose snow. A mid-storm interface observed at approximately half the depth of the new snow was particularly reactive over the past few days.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">As for Wednesday's outlook, f</span><span class="s_AA239A9B">resh storm slabs should be expected to remain sensitive to skier and rider triggers, especially where they overlie weak layers present at our previous surface and where winds have promoted slab formation. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Monday, but a Size 1.5 slab was triggered by a ski touring party in the central part of the region on Sunday. The slide initiated in a wind loaded pocket on a southwest aspect at 2100 metres and featured a 100cm deep crown fracture. While it is not believed to have involved persistent weak layers, it does reveal the scale of recent wind slab growth as well as their remaining sensitive to light triggers in specific terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Another relatively recent report includes details of a remotely triggered Size 2.5 avalanche that occurred in the south of the region on Thursday. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, numerous size 2.5 natural and explosive triggered storm slab avalanches were reported at Kootenay Pass. The avalanches were reported as having impressive propagation up to 150 m wide. North of Nelson, there was a widespread natural avalanche cycle to size 2. South of Nelson, there were several size 2.5 natural storm slab avalanches reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread avalanche cycle up to size 2.5 has occurred on all aspects at all elevations. Many of the fracture lines and debris piles have become hidden, as a large number of these slides occurred during the big storm and were subsequently covered by further snowfalls. Numerous loose dry and wind slab avalanches also occurred today, so the cycle is not quite over yet.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in this region on Monday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports of natural and human triggered storm slab avalanches up to Size 2.5 continues, with some slabs exhibiting wider propagation than seen in previous days. Storm slabs are expected to remain sensitive to light triggers and heavy loading from snow and wind is expected to result in continued natural avalanche activity. Loose snow avalanches have also been an ongoing hazard for the past few days and should not be underestimated in steeper and confined terrain, especially where the potential exists to entrain significant mass.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include numerous explosives-triggered storm slab avalanches up to Size 2.5, with one Size 1 ski cut. Further evidence of numerous recent natural storm slab avalanches up to Size 2 was also reported. Also, a skier accidentally triggered a 50cm thick Size 2 storm slab avalanche on a southwest aspect at 2200 m.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Heavy loading from snow and wind is expected to result in continued natural avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Additional new snow, warmer temperatures and wind on Thursday are expected to give a spike in avalanche activity. Previously buried surface hoar, facets, and/or a sun crust may increase the reactivity and propagation propensity of new storm slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural storm slab avalanches up to size 2.5 were observed. Explosives and skiers also triggered storm slab avalanches up to size 2 on Monday and Tuesday. These recent avalanches have had a typical slab thickness of 30-60 cm. On Sunday, natural and human triggered avalanches up to size 3 were observed on all aspects and elevations above around 1500m.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">With additional snow, warming temperatures and wind on Thursday expect to see another spike in avalanche activity as the load grows over weak layers deeper in the snowpack. Storm slab avalanches have the potential to step down to the basal weakness which would drastically increase the size and destructive potential of a resulting avalanche. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, numerous skier triggered storm slab avalanches size 1-1.5 were reported. Explosives also triggered storm slabs up to size 2.5. These slabs were typically around 30 cm thick. One of these storm slab avalanches stepped down to the basal weakness resulting in a slab that was up to 150 cm thick. On Monday in the Lizard region, natural avalanches up to size 2.5 were observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a size 1.5 wind slab and a 1.5 storm slab were triggered by skiers west of Whistler. Heavy</span><span class="s_1681A555"> snow, strong winds, and warming is elevating the avalanche danger to HIGH on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">Heavy snow, strong winds, and warming is elevating the avalanche danger to HIGH on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the past few days. The most recent avalanche activity was reported on the weekend. This activity included skier triggered wind slab activity to size 1, explosive triggered wind slab avalanches to 2.5 and 3. Some of these avalanches in the Bear Pass area released on weaknesses near the base of the snowpack. In the northern most parts of the region near Bell2 or Ningunsaw, there are still reports as recent as Saturday of natural and skier triggered avalanches to Size 2.5 stepping down to basal facets in the alpine and at treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, expect recently formed wind slabs to remain reactive to human triggering. Outflow winds have continued to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to drive a low probability/high consequence problem for shallow snowpack areas, especially in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the past few days. Most recent avalanche activity was reported on the weekend. This included a remotely triggered size 2 wind slab avalanche on a southwest aspect at 1200 m elevation. The slab was 60 cm thick and was triggered from 10 m away. On Saturday, a natural size 2 wind slab avalanche was reported on a north aspect at 1600 m elevation with a slab thickness of 30 cm. On Friday, a natural size 2.5 deep persistent slab was observed in the far north of the region on a southeast aspect at 1800 m elevation which released on the ground.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to drive a low probability/high consequence problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports of natural and human triggered storm slab avalanches up to Size 2 continues, with some slabs exhibiting wider propagation than seen in previous days. S</span><span class="s_AA239A9B">torm slabs are expected to remain sensitive to light triggers, especially where winds have promoted slab formation. Heavy loading from snow and wind could result in continued natural avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include several explosives-triggered avalanches up to Size 2.5, one of which failed to ground in some lower moraine features. A Size 1.5 slab was triggered by a ski touring party in the central part of the region on Sunday. The slide initiated in a wind loaded pocket on a southwest aspect at 2100 metres and featured a 100cm deep crown fracture. While it is not believed to have involved persistent weak layers, it does reveal the scale of recent wind slab growth as well as their remaining sensitive to light triggers in specific terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Another relatively recent report includes details of a remotely triggered Size 2.5 avalanche that occurred in the south of the region on Thursday. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, there were numerous explosive triggered storm slab avalanches that ran to valley bottoms up to size 3.5 near Kootenay Pass. Additionally, south of Nelson there was a skier triggered size 2 storm slab avalanche on a southeast aspect around 2000m. </span><span class="s_1681A555">Heavy snow, strong winds, and warming is elevating the avalanche danger to HIGH on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche control on Mt Buller and the East End of Rundle (EEOR) had variable results, with some loose dry and slab avalanches up to size 2.5. The most significant avalanches occurred on EEOR where significant propagations occurred in the recently formed wind slabs. No new natural avalanches were observed today, but field teams did get some cracking along a ridge crest between 2450 and 2300m while ski cutting.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">The rain on snow event that is forecast for early Thursday morning is expected to trigger a widespread natural avalanche cycle for a short period of time at treeline and below. In the alpine, where the precipitation is forecast to fall as snow, danger is expected to remain High throughout the day.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include several skier-controlled wind and storm slab avalanches up to Size 1.5. Loading from snow and wind is expected to result in natural avalanche activity on Thursday and these storm and wind slabs are expected to remain sensitive to light triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Wednesday. Reports from Tuesday include numerous explosives-triggered storm slab avalanches up to Size 2.5, with one Size 1 ski cut. Further evidence of numerous recent natural storm slab avalanches up to Size 2 was also reported. Also, a skier accidentally triggered a 50cm thick Size 2 storm slab avalanche on a southwest aspect at 2200 m.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Heavy loading from snow and wind is expected to result in continued natural avalanche activity with touchy storm and wind slabs remaining sensitive to light triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from the Fernie area indicate widespread natural and skier controlled avalanche activity to size 1.5. Most avalanches were isolated to the depth of 40cm in the most recent moist storm snow. These avalanches were happening at all elevations. There was one report of Size 3 natural avalanche running in steep alpine terrain on an east aspect. Previously buried surface hoar, facets, and/or a sun crust may increase the reactivity and propagation propensity of storm slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday there was a report of a size 2.5 natural avalanche 50-120cm deep on a NW aspect in Waterton Park.  Expect the recent dense storm slab to be reactive to human triggering in the coming days as the all the new snow from the past 10 days starts to settle. Storm slab avalanches have the potential to step down to the basal weakness which would drastically increase the size and destructive potential of a resulting avalanche. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">Thursday's storm has created touchy storm slabs that will remain likely to human trigger on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">Forecast continued heavy snow and strong winds Thursday night and into Friday are keeping the avalanche danger HIGH on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, expect recently formed wind slabs to remain reactive to human triggering. Outflow winds have continued to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to drive a low probability/high consequence problem for shallow snowpack areas, especially in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the past few days. The most recent avalanche activity was reported on the weekend, which included skier triggered wind slab activity to size 1, explosive triggered wind slab avalanches to 2.5 and 3. Some of these avalanches in the Bear Pass area released on weaknesses near the base of the snowpack. In the northern most parts of the region near Bell2 or Ningunsaw, there are still reports as recent as early this week of natural and skier triggered avalanches stepping down to basal facets in the alpine and at treeline. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to drive a low probability/high consequence problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the past few days. Most recent avalanche activity was reported last weekend, which included a remotely triggered size 2 avalanche and naturally triggered avalanches to size 2.5. Some of the natural avalanches involved the full depth of the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports of natural and skier-controlled wind and storm slab avalanches up to Size 1.5 continues. S</span><span class="s_AA239A9B">torm slabs are expected to remain sensitive to light triggers, especially where winds have promoted slab formation and heavy loading from snow and wind could result in continued natural avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include several relatively harmless thin storm slab avalanches. Reports from Tuesday include several explosives-triggered avalanches up to Size 2.5, one of which failed to ground in some lower moraine features. A Size 1.5 slab was triggered by a ski touring party in the central part of the region on Sunday. The slide initiated in a wind loaded pocket on a southwest aspect at 2100 metres and featured a 100cm deep crown fracture. While it is not believed to have involved persistent weak layers, it does reveal the scale of recent wind slab growth as well as their remaining sensitive to light triggers in specific terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Another relatively recent report includes details of a remotely triggered Size 2.5 avalanche that occurred in the south of the region on Thursday. The slide took place on a roughly 30 degree south-facing slope at 2100 m in elevation. The remote trigger, a depth of 80 cm, and a failure plane attributed to our January 15 surface hoar all reinforce enduring concerns for persistent slab problems in the region. </span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">On Wednesday, there was an explosive triggered size 3 persistent slab avalanche south of Nelson. The avalanche was triggered in a thin spot and the crown was 250 cm deep in some places. The weak layer was sugary facets sitting on a crust that was buried in mid-November. This is a good reminder that buried weak layers can remain dormant for months and then awaken like a sleeping dragon. It is possible for storm slab avalanches to step-down to these deeper weak layers resulting in very large and destructive avalanches. Thursday's storm has created touchy storm slabs that will remain likely to human trigger on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity was observed on Thursday but visibility was obscured all day. </span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555"> In the alpine, where the precipitation is falling as snow, danger is expected to remain High on Friday. At treeline and below, dropping freezing levels Thursday night means rain will turn back to snow and be sitting on a newly formed crust.</span></p><p class="p_CC664AAA"><span class="s_1681A555"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include widespread natural and human-triggered storm slab avalanches up to Size 2.5, with many remotely triggered avalanches from as far as 50 m away. Many of these avalanches ran on storm snow interfaces in the top 30 cm, with the larger avalanches failing on facets and/or surface hoar buried early February down as deep as 60 cm. These storm slabs are expected to remain sensitive to light triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include numerous skier-controlled 15cm thick Size 1 storm slab avalanches as well as some explosive triggered storm slabs and loose dry avalanches up to Size 2.5. There was also a report of a remotely triggered slab avalanche from a treed ridge in the Dogtooth Range that propagated out 65-80m, ran about 400m and broke a few younger trees in the runout. Check out</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a4f273fa-d382-4afc-ac89-ab1b6ffc344a" target="_blank"><span class="s_B5813F7D"> this</span></a><span class="s_3FE45715"> and other MIN reports of nearby natural and remotely triggered slab avalanche activity for more details. Storm and wind slabs are expected to remain sensitive to light triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from the Fernie area indicate widespread natural, skier controlled, as well as remotely triggered avalanche activity to size 1.5. One Size 3 avalanche ran naturally in steep alpine terrain in the late afternoon on Thursday. Most avalanches have been isolated to the depth of 40cm in the most recent moist storm snow and activity has been noted at all elevations and on all aspects. Previously buried surface hoar, facets, and/or a sun crust may increase the reactivity and propagation propensity of storm slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday there was a report of a Size 2.5 natural avalanche 50-120cm deep on a NW aspect in Waterton Park. Nearby on the east slope of the Rockies, a Size 2.5 wind slab was brought down with explosives, leaving behind a 40-100cm crown fracture. Expect the recent dense storm slab to remain reactive to human triggering in the coming days as the all the new snow from the past 10 days starts to settle. Storm slab avalanches have the potential to step down to the basal weakness which would drastically increase the size and destructive potential of a resulting avalanche. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">For the past two days avalanche control work in the region has triggered several Size 1 to 2.5 storm slabs and wind slabs on most aspects at treeline and in the alpine, with crowns on average 60cm high. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A widespread natural avalanche cycle (to Size 2.5) occurred on all aspects and elevations at treeline and above from Thursday into Friday.  </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the past few days. On Saturday, expect a transition from our previous wind slab problem to a more generalized and increasing storm slab problem as new snow accumulates and extreme winds promote rapid slab formation. Keep in mind that a basal weakness continues to drive a low probability/high consequence problem for shallow snowpack areas, especially in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the past few days. Our most recent avalanche activity was reported last weekend, which included a remotely triggered size 2 avalanche and naturally triggered avalanches to size 2.5. Some of the natural avalanches involved the full depth of the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Saturday, expect recently formed wind slabs to remain reactive to human triggering. Ongoing outflow winds may continue to add additional load to these wind slabs in places where there is still snow available to be redistributed. A basal weakness continues to drive a low probability/high consequence problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include widespread natural and human-triggered avalanches storm slab avalanches up to Size 2.5, with many remotely triggered avalanches from as much as 50 m away. many of these avalanches ran on a storm snow interface in the top 40 cm, with the larger avalanches failing on facets and/or surface hoar down as deep as 60 cm. These storm slabs are expected to remain sensitive to light triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Thursday, but initial reports from Friday include several natural storm slab avalanches up to Size 2.5. Expect natural avalanche activity to continue with sustained loading from snow and wind, and fresh storm slabs will remain sensitive to light triggers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle (to Size 2.5) occurred on all aspects and elevations at treeline and above from Thursday into Friday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">-A sz3 was reported on Mt. Warspite. It had a wide propagation and traveled full path. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">-A sz2.5 was noted on a sub peak of Mt. Chester. West aspect, alpine start zone. It had a very unusual/erratic propagation</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">-The rundle range had a widespread cycle at treeline and below and some alpine activity. Lots of small pockets that pulled out. High consequence avalanches despite being small</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">-Mt Cascade (Cascade Falls &amp; Urs Hole) went sz3 </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday and Friday, widespread natural and human-triggered storm slab avalanches up to Size 3 were reported throughout the region. It appears that the natural activity likely peaked Thursday overnight. Most of the reported avalanches on Friday had slab thickness of 30-60 cm but a few were reported to be up to 1 m thick. A few remotely triggered avalanches have also been reported recently from up to 20 m away. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. A lingering weak layer below the recent storm snow may increase the size and propagation potential of avalanches. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important on Monday and Tuesday as freezing levels climb. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosives control work in the Fernie area on Friday produced numerous storm slab results generally from Size 2-2.5 with two Size 3 results generating from storm loaded north to northeast aspects. Earlier reports from Thursday indicated widespread natural, skier controlled, as well as remotely triggered avalanche activity to size 1.5. One Size 3 avalanche ran naturally in steep alpine terrain in the late afternoon on Thursday. Most avalanches have been isolated to the depth of 40cm in the most recent moist storm snow and activity has been noted at all elevations and on all aspects. Previously buried surface hoar, facets, and/or a sun crust may increase the reactivity and propagation propensity of storm slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Improved visibility on Friday allowed for a observations of storm slab avalanches having run generally to Size 2 in our region and in the adjacent Waterton National Park over the course of the recent natural avalanche cycle. As for persistent slab activity, one Size 3 was suspected to have run on a persistent weak layer while one Size 2 was reported to have run to ground. On Thursday there was a report of a Size 2.5 natural avalanche 50-120cm deep on a northwest aspect in Waterton Park. Nearby on the east slope of the Rockies, a Size 2.5 wind slab was brought down with explosives, leaving behind a 40-100cm crown fracture. Expect the recent dense storm slab to remain reactive to human triggering in the coming days as the all the new snow from the past 10 days undergoes settlement. Storm slab avalanches have the potential to step down to the basal weakness which would drastically increase the size and destructive potential of a resulting avalanche. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few Size 1 avalanches were triggered with explosive control work on Sunday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle (to Size 2.5) occurred on all aspects and elevations at treeline and above from Thursday into Friday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Spooky conditions with shooting cracks and whoompfing were reported in a great MIN post (</span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/sea-to-sky?panel=mountain-information-network-submissions%2F4d166e5b-ce85-46a0-afdb-ac239d0d90c5" target="_blank"><span class="s_9255B882">see here for details</span></a><span class="s_AA239A9B">) on Saturday afternoon on Nak Peak (Coquihalla area). Conservative terrain use is essential under these conditions.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Although the potential for avalanche activity is now rising quickly, few avalanches have been reported over the past few days. Friday's reports included some explosives control that met with limited success targeting wind slabs northeast of Terrace. Four out of eleven charges produced results up to Size 1.5.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, expect a transition from our previous wind slab problem to a more generalized and increasing storm slab problem as new snow accumulates and extreme winds promote rapid slab formation. Keep in mind that a basal weakness continues to drive a low probability/high consequence problem for shallow snowpack areas, especially in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported in the past few days. Our most recent avalanche activity was reported last weekend and included a remotely triggered Size 2 avalanche as well as naturally triggered avalanches to Size 2.5. Some of the natural avalanches involved the full depth of the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Sunday, expect recently formed wind slabs to be reactive to human triggering. Older hard slabs will be more stubborn, but also capable of much wider propagation. A storm currently impacting the north coast should bring modest new snow accumulations inland along with strong to extreme southwest winds that will promote new wind slab formation in lee areas. A basal weakness continues to drive a low probability/high consequence problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday and Friday, widespread natural and human-triggered storm slab avalanches up to Size 3 were reported throughout the region. It appears that the natural activity likely peaked Thursday overnight. Most of the reported avalanches on Friday had slab thickness of 40-60 cm but a few were reported to be up to 80 cm thick. A few remotely triggered avalanches have also been reported recently from up to 50 m away. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. A lingering weak layer below the recent storm snow may increase the size and propagation potential of avalanches. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important on Monday and Tuesday as freezing levels climb. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent observations from the Cariboos region have been very limited during the storm. On Friday, natural storm slab avalanches up to size 2 were observed west of Valemount.  In the North Columbia region o</span><span class="s_3FE45715">n Thursday and Friday, widespread natural and human-triggered storm slab avalanches up to Size 3 were reported throughout the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. A lingering weak layer below the recent storm snow may increase the size and propagation potential of avalanches. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important on Monday and Tuesday as freezing levels climb. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Near Nelson, several persistent slab avalanches to Size 3 (average depths ranging from 60cm to 100cm) were triggered on virtually all aspects above 1900m with explosives on Saturday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">See Whitewater Ski Patrol's great video (</span><a href="https://www.youtube.com/watch?v=PJy4y58373Y" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">) posted on the Backcountry Skiing Canada web site for a concise summary of details to Feb 9th, and some excellent video footage of a Size 2.5 avalanche running on the Goat Slide path near Whitewater (with crown height to 2.5m).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity has tapered. Most fracture lines from yesterday have blown in and become reloaded. Some cornice triggered avalanches were noted in the alpine today. All were on sun exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, natural activity was limited to loose dry avalanches up to size 1.5. Two skier triggered storm slab avalanches were also reported. One was a size 1 wind loaded pocket on a north aspect at 2200 m and the other was a size 2 on a southwest aspect at 1950 m that released on an old sun crust. On Thursday through Friday night, widespread natural and human-triggered storm slab avalanches up to Size 3 were reported throughout the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important through the week as freezing levels remain very high. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, reported natural activity was limited to one size 2 wind slab on a northeast aspect at 2600 m elevation. A couple size 2-2.5 storm slab avalanches were remotely triggered from up to 100 m away. Explosives also triggered numerous size 2-3 storm slabs.  These slabs were typically 40-80 cm thick. On Friday, natural and human triggered storm slab avalanches up to size 3 were reported. In the mountains west of Invermere, explosives triggered four persistent and deep persistent slab avalanches. This activity was on east and southeast aspects and released 1.5-2.5 m deep. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. Persistent slab avalanches are a concern, especially in the thinner snowpack areas along the eastern side of the range.  Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important through the week as freezing levels remain very high. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosives control work in the Fernie area on Saturday yielded a few results up to to Size 1 within the wind-affected surface snow. Friday's control work produced numerous storm slab results generally from Size 2-2.5 with two Size 3 results generating from storm loaded north to northeast aspects. Earlier reports from Thursday indicated widespread natural, skier controlled, as well as remotely triggered avalanche activity to size 1.5. One Size 3 avalanche ran naturally in steep alpine terrain in the late afternoon on Thursday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosives control in the south of the region on Saturday yielded a few Size 1 results, limited to wind slabs in the upper snowpack. Friday's post-storm observations included reports of storm slab avalanches having run generally to Size 2 in our region and in the adjacent Waterton National Park over the course of the recent natural avalanche cycle. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for persistent slab activity during that cycle, one Size 3 was suspected to have run on a persistent weak layer while one Size 2 was reported to have run to ground. On Thursday there was a report of a Size 2.5 natural avalanche 50-120cm deep on a northwest aspect in Waterton Park. Nearby on the east slope of the Rockies, a Size 2.5 wind slab was brought down with explosives, leaving behind a 40-100cm crown fracture. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Monday, warm temperatures can be expected to promote instability within wind slabs and storm slabs. As the warm temperatures persist, and especially if we don't experience refreezing overnight, the potential for deep persistent slab releases will rise steadily each day. Any avalanches releasing on a basal weakness will likely be large and very destructive. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A skier accidental Size 2.5 was reported northwest of Whistler on an east aspect low in the alpine elevation band. The crown height averaged 100cm and suspected to have run on facets below the Feb 3rd wind slab (or melt-freeze crust in other areas) interface. This avalanche sympathetically triggered another avalanche Size 2.0 nearby (50 m away). </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Even farther northwest of Whistler, skiers were able to remote-trigger storm slabs, failing on 10mm preserved surface hoar. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the Blackcomb backcountry, ski tourers on the Decker shoulder area triggered a small Size 1 storm slab on a wind loaded convex feature near 1800m, northwest aspect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Spooky conditions with shooting cracks and significant whoompfing were reported in two great MIN posts from this weekend (</span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/sea-to-sky?panel=mountain-information-network-submissions%2F4d166e5b-ce85-46a0-afdb-ac239d0d90c5" target="_blank"><span class="s_9255B882">see here for Coquihalla</span></a><span class="s_AA239A9B">) (</span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/south-coast-inland?panel=mountain-information-network-submissions%2F16b6c4cc-124d-49fb-bf49-dff2ebd1560f" target="_blank"><span class="s_9255B882">see here for Duffey Lake zone</span></a><span class="s_AA239A9B">) on Nak Peak (Coquihalla area) and Chief Pascal trees (Duffey Lake zone), respectively. Conservative terrain use is essential under these conditions.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday reflect only our initial new snow accumulations, but Size 1-1.5 storm slabs were reactive to explosives control north of Stewart. Ongoing accumulation of new snow is expected to increase both the reactivity and size of storm slabs in the coming days. As for pre-storm avalanche activity, Friday's reports included some explosives control that met with limited success targeting wind slabs northeast of Terrace. Four out of eleven charges produced results up to Size 1.5.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, expect an increasing storm slab problem as new snow accumulates, freezing levels climb, and strong to extreme winds promote rapid slab formation. Also keep in mind that a basal weakness continues to drive a low probability/high consequence problem for shallow snowpack areas, especially in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent reports of avalanche activity have been limited, but one wind slab was observed running naturally from a steeper east aspect in the Howson Range on Saturday. While the slope is reported to avalanche regularly, this does serve as a reminder that wind slabs remain reactive to light triggers in specific terrain. More substantial avalanche activity was reported last weekend, including a remotely triggered Size 2 avalanche as well as naturally triggered avalanches to Size 2.5. Some of the natural avalanches involved the full depth of the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Monday, expect recently formed wind slabs to be reactive to human triggering. Older hard slabs may be more stubborn, but also capable of much wider propagation. A storm currently impacting the north coast should bring modest new snow accumulations inland along with strong to extreme southwest winds that will promote the formation of thin, touchy new wind slabs in lee areas. Also keep in mind that a basal weakness continues to drive a low probability/high consequence problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas and as forecast warming begins to take effect. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, natural activity was limited to two size 2-2.5 wind slab avalanches. Skiers remotely triggered a few size 1.5-2.5 storm slab avalanches from up to 25 m away. Explosives triggered numerous storm slab avalanches up to size 3 with typical slab thickness of 50-70 cm. Explosives also triggered one size 3.5 persistent slab avalanche which failed on the November crust layer that had been reloaded following a previous avalanche in early January. On Thursday and Friday, widespread natural and human-triggered storm slab avalanches up to Size 3 were reported throughout the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important through the week as freezing levels remain very high. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, one natural size 2 storm slab was observed on a southeast aspect at 2300 m. A size 2 storm slab avalanche was remotely triggered from 60 m away on a northeast aspect at 2100 m elevation. The slab was around 50 cm thick. On Friday, numerous natural storm slab avalanches size 2-3 were observed throughout the region. </span><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, the recent storm snow is expected to remain reactive to human triggering, especially in wind affected terrain. Persistent slab avalanches are also a concern, especially in the thinner snowpack areas of the region. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important through the week as freezing levels remain very high. We are entering the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">See Whitewater Ski Patrol's great video (</span><a href="https://www.youtube.com/watch?v=PJy4y58373Y" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">) posted on the Backcountry Skiing Canada web site for a concise summary of details to Feb 9th, and some excellent video footage of a Size 2.5 avalanche running on the Goat Slide path near Whitewater (with crown height to 2.5m).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A group of skiers remotely triggered a size 2.0 avalanche near Black Prince today on an East aspect at 2200m. The slab was approximately 80cm deep and failed in the basal weak layers. There was nobody buried. In addition, a natural avalanche cycle continued today with avalanche activity up to size 3.0 in lee and cross-loaded terrain. A few of these avalanches initiated in the upper snowpack and then steeped down to the Dec 18th persistent weak layer once they reached the Treeline elevation band.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, a couple natural size 1.5-2.5 wind slabs were observed. Two remotely triggered size 2-2.5 storm slab released from up to 30 m away. A ski cut on a northeast aspect at 1300 m elevation triggered a size 1.5 deep persistent slab which failed on an old layer near the bottom of the snowpack. Explosives triggered numerous storm slabs up to size 2.5 as well as two deep persistent slabs up to size 3.5 which released down 200 cm, most likely on the November crust. On Friday, explosives triggered two deep persistent slab avalanches which released down 200 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, storm slabs overlying a weak layer are expected to remain reactive to human triggering. It also appears that the November crust layer is beginning to wake up with the warm conditions and deep persistent slab avalanches are becoming a serious concern. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important through the week as freezing levels remain very high. We have entered the first period of substantial warming following months of sustained cold conditions and lingering weaknesses in the snowpack are once again becoming reactive. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Sunday's reports are limited to a single MIN post revealing an impressive Size 3 avalanche in the Little Sands area. This avalanche -along with a number of others observed the same day- appears to have been triggered by solar warming. While the age of the avalanche in the photo is uncertain, backcountry travelers should be ready for ongoing warming to produce these types of avalanches over the coming days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Before this warming took effect, explosives control work in the Fernie area on Saturday yielded a few results up to to Size 1 within wind-affected surface snow. Friday's control work produced numerous storm slab results generally from Size 2-2.5 with two Size 3 results generating from storm loaded north to northeast aspects. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosives control in the south of the region on Saturday yielded a few Size 1 results, limited to wind slabs in the upper snowpack. Friday's post-storm observations included reports of storm slab avalanches having run generally to Size 2 in our region and in the adjacent Waterton National Park over the course of the recent natural avalanche cycle. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">As for persistent slab activity during that cycle, one Size 3 was suspected to have run on a persistent weak layer while one Size 2 was reported to have run to ground. On Thursday there was a report of a Size 2.5 natural avalanche 50-120cm deep on a northwest aspect in Waterton Park. Nearby on the east slope of the Rockies, a Size 2.5 wind slab was brought down with explosives, leaving behind a 40-100cm crown fracture. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Tuesday, warm temperatures can be expected to promote instability within wind slabs and storm slabs. As the warm temperatures persist, and especially if we don't experience refreezing overnight, the potential for deep persistent slab releases will rise steadily each day. Any avalanches releasing on a basal weakness will likely be large and very destructive. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday there were reports of widespread whoompfs near treeline on Northerly aspects in the Duffey Lake zone. Compression tests gave sudden results down 65cm on surface hoar. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/16b6c4cc-124d-49fb-bf49-dff2ebd1560f" target="_blank"><span class="s_9255B882">Click here to see this MIN post.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We had reports of a remote-triggered Size 1.5 on a northwest aspect near 1750m just outside the Manning ski area on Saturday - skiers traveling along the ridgeline triggered an adjacent slope. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/0e698469-deee-448c-a7ab-6012205d51f4" target="_blank"><span class="s_9255B882">Click here to see this MIN post</span></a><span class="s_AA239A9B">.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A snowmobiler triggered a Size 2 storm slab in the Bear Pass area on Sunday, resulting in a partial burial. The entire depth of storm snow was involved in the avalanche, resulting in a 120 cm crown depth and 100 metre width. The incident calls attention to increased snow depths in wind loaded areas, as well as the touchy nature of our storm slab problem and the potential for wide propagations. Additional reports from Sunday revealed extensive and productive explosives control north of Stewart, with numerous storm slabs running Size 1.5-2 with crown depths of 20-50 cm. One Size 3 result was recorded.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Tuesday, expect our storm slab problem to remain very touchy as ongoing snowfall, high freezing levels, and strong winds promote rapid slab formation and easy triggering. Also keep in mind that a basal weakness continues to drive a low probability/high consequence problem for shallow snowpack areas, especially in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Sunday includes observations of recent Size 2 wind slab in the Hudson Bay area that is suspected to have run naturally on an east aspect. Perhaps more striking is the fact that the party also experienced several whumphs, suspected to be failures at one of our more shallow persistent weak layers. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Tuesday, expect recently formed wind slabs to be reactive to human triggering. Older hard slabs may be more stubborn, but also capable of much wider propagation. A storm focused on the north coast has brought modest new snow accumulations inland along with strong to extreme southwest winds that have promoted the formation of touchy new wind slabs in lee areas. Also keep in mind that a basal weakness continues to drive a low probability/high consequence problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas and as warm temperatures begin to penetrate deeper into the snowpack. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, a natural size 2 was observed on an east aspect at 1500 m elevation. Explosives triggered numerous storm slab avalanches size 1-3 in alpine terrain. Slabs were typically 40-60 cm thick and failing on the early February weak layer. On Saturday, a couple natural wind slab avalanches were observed as well as a few remotely triggered storm slab avalanches from up to 25 m away. On Thursday and Friday, widespread natural and human-triggered storm slab avalanches up to Size 3 were reported throughout the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, storm slabs overlying a weak layer are expected to remain reactive to human triggering. In the far north of the region, persistent slab avalanches are possible. Extra caution is recommended during the heat of the afternoon, especially on sun exposed slopes. This will become increasingly important through the week as freezing levels remain very high. We have entered the first period of substantial warming following months of sustained cold conditions. Any weaknesses lingering in the snowpack will be tested in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed in this region; however, skiers on London Ridge near Kaslo remote-triggered a Size 3 avalanche after getting poor results in snowpack tests. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/2696fc67-f5df-4d37-8ee6-fb26d39b9f9e" target="_blank"><span class="s_9255B882">See here for their great MIN report.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new activity was observed today but all the slopes in the back country do look primed for avalanching. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, natural loose wet avalanches up to size 2 were reported throughout the region from steep sun exposed slopes. A natural size 3 was reported on a northeast aspect at 2500 m and a natural cornice release triggered a size 2 slab on a southeast aspect at 2500 m. A skier also remotely triggered a size 1.5 wind slab on an east aspect at 2400 m which was triggered from 20 m away. On Sunday, a few natural wind slabs were observed in the alpine. A MIN report describes a remotely triggered size 3 avalanche on London Ridge. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/2696fc67-f5df-4d37-8ee6-fb26d39b9f9e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, new snow and strong southwest winds will likely form touchy new wind slabs. Wind slab avalanches have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, natural loose wet avalanches up to size 1.5 were reported from steep sun exposed slopes. Ski cutting triggered a size 1 wind slab on a north aspect at 2200 m. Explosives triggered a couple cornices and several size 2-3.5 slabs. A few of these appear to have released on old weak layers down 120-150 cm in the snowpack. </span><span class="s_3FE45715">On Sunday, a few natural size 1.5-2.5 wind slabs were observed. One of the wind slabs</span><span class="s_AA239A9B"> stepped down to a deeper layer.</span><span class="s_3FE45715"> A ski cut on a northeast aspect at 1300 m elevation triggered a size 1.5 deep persistent slab which failed on an old layer near the ground. Explosives triggered numerous storm slabs up to size 2.5 as well as two deep persistent slabs up to size 3.5 which released down 200 cm, most likely on the November crust. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, new snow and strong southwest winds will likely form touchy new wind slabs. Wind slab avalanches have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Sunday's reports are limited to a single MIN post revealing an impressive Size 3 avalanche in the Little Sands area. This avalanche, along with a number of others observed the same day, appears to have been triggered by solar warming. While the age of the avalanche in the photo is uncertain, backcountry travelers should be ready for ongoing warming to produce these types of avalanches over the coming days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent observations have been limited; however, a size 2 solar-triggered slab avalanche was observed at 2000m in the Elkford area on Tuesday. It was thought to be about a day old. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Wednesday, warm temperatures can be expected to promote instability within the snowpack. As the warm temperatures persist, and especially if we don't experience refreezing overnight, the potential for deep persistent slab releases will rise steadily each day. Any avalanches releasing on a basal weakness will likely be large and very destructive. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Several loose wet avalanches to Size 3 were seen on steep solar aspects on Monday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday there were several loose wet avalanches to Size 2 on solar (southerly) aspects, and some moist slabs to size 1.5 as well.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past few days a natural avalanche cycle up to size 3 occurred in response to heavy snow and wind. The peak of the natural avalanche activity occurred a few days ago; however, human triggered slab avalanches to size 1.5 were observed failing on recently buried surface hoar as recently as Monday. Recent naturally triggered wind slabs were also observed.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Ongoing storm slab activity is expected in response to new snow and wind on Tuesday and Wednesday. New snow will also add stress and destructive potential to deeper weak layers. Loose wet avalanches are expected to continue at lower elevations where precipitation falls as rain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Sunday includes observations of recent Size 2 wind slab in the Hudson Bay area that is suspected to have run naturally on an east aspect. Perhaps more striking is the fact that the party also experienced several whumphs, suspected to be failures at one of our more shallow persistent weak layers. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Wednesday, expect recently formed wind slabs to be reactive to human triggering. Older hard slabs may be more stubborn, but also capable of much wider propagation. A storm focused on the north coast has brought modest new snow accumulations inland along with strong to extreme southwest winds that have promoted the formation of touchy new wind slabs in lee areas. Also keep in mind that a basal weakness continues to drive a low probability/high consequence deep persistent avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas and as warm temperatures begin to penetrate deeper into the snowpack. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, natural loose wet avalanches up to size 2 were reported throughout the region from steep sun exposed slopes. A natural size 2 wind slab was observed on a northeast aspect at 2100 m failing down 40 cm. Explosives triggered a few slabs size 2-3 failing down 50-60 cm on the early February weak layer. On Sunday, a natural size 2 was observed on an east aspect at 1500 m elevation. Explosives triggered numerous storm slab avalanches size 1-3 in alpine terrain. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, new snow and strong southwest winds will likely form touchy new wind slabs. Wind slab avalanches have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several loose wet avalanches to Size 2 were reported on steep solar (south) aspects on Monday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Of particular note was a Size 3 natural avalanche on Wolf ridge near Kootenay pass on Monday - the sun's effect is significant! See the great photo in the MIN report (</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/dba6e809-7516-496c-9bd5-55a228631b84" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One incident with scramblers triggering an avalanche on an outlying peak of Mt. Charles Stewart.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Small loose wet avalanches to Size 1.5 were observed on steep solar (south) aspects on Monday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include continued natural loose wet avalanche activity up to size 1.5 on steep sun exposed slopes. On Monday, natural Size 3 was reported on a northeast aspect at 2500 m, and a natural cornice triggered Size 2 slab avalanche was observed on a southeast aspect at 2500 m. A MIN report from Sunday describes a remotely triggered size 3 avalanche on London Ridge. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/2696fc67-f5df-4d37-8ee6-fb26d39b9f9e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, touchy new wind slabs have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include continued natural loose wet avalanche activity up to size 1.5 on steep sun exposed slopes, as well as a 70 cm deep by 200 m wide Size 3.5 natural storm slab avalanche that ran 1000 m from a south facing alpine start zone. </span><span class="s_3FE45715">On Sunday, explosives triggered numerous storm slabs up to size 2.5 as well as two deep persistent slabs up to size 3.5 which released down 200 cm, most likely on the November crust. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, touchy new wind slabs have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanches have been reported. Looking forward, I'd expect a widespread round of storm slab activity in response to new snow and extreme southwest winds on Wednesday night and Thursday. Rain at lower elevations will likely promote loose wet avalanche activity below treeline.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent observations have been limited; however, a few size 2 solar-triggered persistent slab avalanches were observed at 2000m in the Elkford area on Tuesday. They were thought to be about a day old and appeared to have failed on the December facets. Gradual cooling should help to limit natural avalanche activity at this interface. However, the December facet layer will be with us for a while and should not be trusted as we enter a low-probability/ high consequence pattern with this layer. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Thursday, new snow and wind are expected to promote a round of wind slab activity in exposed higher elevation terrain. Rain at lower elevations may trigger loose wet avalanches in steep terrain below treeline. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several small loose wet avalanches were reported at treeline and below on Wednesday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several natural storm slab avalanches to Size 2 were reported in the alpine on Wednesday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Limited observations during this storm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the Duffey Lake zone a Size 2.5 deep persistent slab was reported running on a south-southwesterly aspect near 2200m, likely triggered by solar warming on Monday or Tuesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Due to stormy weather, avalanche observations over the past few days have been extremely limited. That said, a natural storm slab cycle to size 3 was observed in Bear Pass on Tuesday. New snow and wind have created potent yet relatively short-term surface instabilities, but it is also adding stress and destructive potential to recently buried persistent weaknesses. At lower elevations where precipitation fell as rain, widespread loose wet avalanches to size 2 were also reported. As the storm clears, there will be a fair bit of uncertainty regarding how the storm loading and warm temperatures have affected the reactivity of deeper weaknesses. I'd remain conservative in my terrain selection for the immediate future.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've received very little in the way of recent avalanche observations, mostly due to inclement weather. For Thursday, expect newly formed wind slabs to be reactive to human triggering. Also keep in mind that a basal weakness continues to drive a low probability/high consequence deep persistent avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas and during times of warming.. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include continued natural loose wet avalanche activity up to Size 2 on steep sun exposed slopes. A Size 2 natural storm slab and Size 1 skier triggered wind slab was also reported. On Monday a natural Size 2 wind slab was observed on a northeast aspect at 2100 m failing down 40 cm. Explosives triggered a few Size 2-3 persistent slabs failing on the early February weakness down 50-60 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, touchy new wind slabs have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include continued natural loose wet avalanche activity up to Size 1 on steep sun exposed slopes, as well as a Size 2.5 natural cornice triggered persistent slab avalanche running on facets buried early February. Over the weekend, several rider triggered avalanches were reported on the MIN including a size 3 that resulted in a full burial. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e3c8a40e-47d1-4067-b756-77d6c7b8fc2b" target="_blank"><span class="s_9255B882">Click here more details (1).</span></a><span class="s_AA239A9B"> </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/c42a7298-7690-4763-a46d-fdd1db7b93d0" target="_blank"><span class="s_9255B882">(2),</span></a><span class="s_AA239A9B"> </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/bd397907-2499-4069-9c9b-fed8db25e09a" target="_blank"><span class="s_9255B882">and (3).</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Rain at lower elevations is expected to destabilize the upper snowpack resulting loose wet sluffing and potentially increasing the sensitivity of triggering persistent slab avalanches. In the alpine, touchy new wind slabs have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the Rossland Range deep persistent slabs to Size 2 were reported on southeast and west aspects around 2000m. A thin snowpack or solar triggered sluffs stepping down to weaker faceted layers were the culprits. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Of particular note was a Size 3 natural avalanche on Wolf ridge near Kootenay pass on Monday - the sun's effect is significant! See the great photo in the MIN report (</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/dba6e809-7516-496c-9bd5-55a228631b84" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">).</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed on Wednesday but observations were limited. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reported. Ski testing of small slopes gave no results on Wednesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday and Thursday morning include continued natural loose wet avalanche activity up to Size 1 on steep slopes all aspects below approximately 2000m. Fresh stubborn storm slabs were also reactive to ski-cuts producing Size 1's on steep slopes above 1900 m. Other reports include explosive triggered storm slabs up to Size 2. On Monday, natural Size 3 was reported on a northeast aspect at 2500 m, and a natural cornice triggered Size 2 slab avalanche was observed on a southeast aspect at 2500 m. A MIN report from Sunday describes a remotely triggered size 3 avalanche on London Ridge. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/2696fc67-f5df-4d37-8ee6-fb26d39b9f9e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> T</span><span class="s_3FE45715">ouchy new wind slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday and Thursday morning include continued natural loose wet avalanche activity up to Size 2 at treeline and below. On Tuesday a 70 cm deep by 200 m wide Size 3.5 natural storm slab avalanche was reported that ran 1000 m from a south facing alpine start zone. </span><span class="s_3FE45715">On Sunday, explosives triggered numerous storm slabs up to size 2.5 as well as two deep persistent slabs up to size 3.5 which released down 200 cm, most likely on the November crust. Touchy new wind slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread storm slab activity was reported on Thursday. This included several explosive and naturally triggered size 2 avalanches in the Lizard range. Ski cutting also produced size 1 wet slabs in rain saturated snow at below treeline elevations. Looking ahead to Friday, natural storm slab activity should taper off but human triggering will remain likely at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent observations have been limited; however, a few size 2 solar-triggered persistent slab avalanches were observed in the Elkford area on Tuesday. They were thought to be about a day old and appeared to have failed on the December facets. Gradual cooling should help to limit natural avalanche activity at this interface. However, the December facet layer will be with us for a while and should not be trusted as we enter a low-probability/ high consequence pattern with this layer. Wind slabs will also remain reactive to human triggers at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include numerous storm slabs releasing naturally as well as with explosives and ski cutting to Size 2 in the Whistler area. Ski cut Size 1 slabs were noted running slowly over long distances. Thursday's reports included evidence of a natural Loose Wet avalanche cycle to Size 1.5 below 1900 metres in the Whistler area.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Observations have been limited during the storm, but loose wet point releases were observes running to Size 2 at lower elevations north of Duffey Lake on Wednesday. A number of (presumably large) natural avalanches were also audible in the Bralorne area on Wednesday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Due to stormy weather, avalanche observations over the past few days have been limited. New snow and wind have created potent yet relatively short-term surface instabilities, with a few reports of size 1 skier-triggered avalanches on small wind loaded slopes. At lower elevations where precipitation fell as rain, widespread loose wet avalanches to size 2 were also reported. As the storm clears, there will be a fair bit of uncertainty regarding how the storm loading and warm temperatures have affected the reactivity of deeper weaknesses. I'd remain conservative in my terrain selection for the immediate future.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've received very little in the way of recent avalanche observations, mostly due to inclement weather. </span><span class="s_3FE45715">At lower elevations where precipitation fell as rain, loose wet avalanches to size 1.5 have been reported. Fo</span><span class="s_AA239A9B">r Friday, expect newly formed wind slabs to be reactive to human triggering. Also keep in mind that a basal weakness continues to drive a low probability/high consequence deep persistent avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas and during times of warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday and Thursday morning include continued natural and skier-triggered loose wet avalanche activity up to Size 1 on steep slopes. On Monday a natural Size 2 wind slab was observed on a northeast aspect at 2100 m failing down 40 cm. Explosives triggered a few Size 2-3 persistent slabs failing on the early February weakness down 50-60 cm. T</span><span class="s_3FE45715">ouchy new wind and storm slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday and Thursday morning are limited, but include one recent natural Size 3 on a north aspect. Over the weekend, several rider triggered avalanches were reported on the MIN including a size 3 that resulted in a full burial. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e3c8a40e-47d1-4067-b756-77d6c7b8fc2b" target="_blank"><span class="s_9255B882">Click here more details (1).</span></a><span class="s_AA239A9B"> </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/c42a7298-7690-4763-a46d-fdd1db7b93d0" target="_blank"><span class="s_9255B882">(2),</span></a><span class="s_AA239A9B"> </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/bd397907-2499-4069-9c9b-fed8db25e09a" target="_blank"><span class="s_9255B882">and (3).</span></a><span class="s_3FE45715"> Touchy new wind slabs are likely sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A Size 1.5 slab avalanche was triggered by a skier north of Nelson on Wednesday. It occurred on a north-facing 30 degree slope at 2000 metres and features a 50 cm crown fracture. The Ferbruary 8th interface is suspected to be the failure plane. In the Rossland Range deep persistent slabs to Size 2 were reported on southeast and west aspects around 2000m on Tuesday. A thin snowpack or solar triggered sluffs stepping down to weaker faceted layers were the culprits. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Of particular note was a Size 3 natural avalanche on Wolf ridge near Kootenay pass on Monday - the sun's effect is significant! See the great photo in the MIN report (</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/dba6e809-7516-496c-9bd5-55a228631b84" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">).</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new was noted today, however the light was poor.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Ski testing of small slopes gave no results on Wednesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday and Friday morning include natural, ski-cut and explosives controlled 15-40 cm thick storm and wind slab avalanches up to Size 2.5. Other reports include continued natural wet avalanche activity up to Size 2.5 at lower elevations below the rain line. A MIN report from Sunday describes a remotely triggered size 3 avalanche on London Ridge. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/2696fc67-f5df-4d37-8ee6-fb26d39b9f9e" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> T</span><span class="s_3FE45715">ouchy new storm slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday and Friday morning include natural, ski-cut and explosives controlled 20-40 cm thick storm and wind slab avalanches up to Size 2. Explosives control also produced numerous 30-80 cm thick Size 2 deep persistent slab avalanches running on basal facets and depth hoar in previously controlled steep northeast facing terrain. Other reports include continued natural wet loose avalanche activity up to Size 2 at treeline and below. Touchy new storm slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread storm slab activity was reported on Thursday and Friday night. This included explosive and naturally triggered size 2 avalanches in the Lizard range. Ski cutting also produced size 1 wet slabs in rain saturated snow at below treeline elevations. Human triggering storm slabs will remain likely at higher elevations throughout the weekend, as more snow is in the forecast.</span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche reports in the region include size 1-2 loose wet avalanches in rain soaked snow at lower elevations. On Thursday, a small slab in Waterton stepped down in a shallow snowpack area below a cliff to release a size 2 deep persistent slab avalanche. Earlier in the week, a few size 2 solar-triggered persistent slab avalanches were observed in the Elkford area.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For the weekend, watch for reactive wind slabs at higher elevations. Also keep in mind that the deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around and below large open slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Two Size 2 storm slabs were successfully targeted with explosives in the Whistler area on Thursday. Both featured 60 cm crown fractures. Evidence of several recent wet slab avalanches having run to Size 2 was also observed on Thursday, while loose wet avalanches ran to Size 1.5 below 1900 metres. These slides were triggered naturally during the recent warming event. Reports from Wednesday included numerous storm slabs releasing naturally as well as with explosives and ski cutting to Size 2 in the Whistler area. Ski cut Size 1 slabs were noted running slowly over long distances. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include observations of several storm slabs running naturally to Size 2.5 and gouging all the way to ground in confined paths. Explosives control in the Duffey Lake area yielded several Size 2-2.5 results, noted for pulling into low angle terrain above start zones. No recent reports have come in from the south of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, numerous small loose wet avalanches (size 1) were skier triggered in the Terrace area. Evidence of natural avalanche activity during the previous storm was also reported, with the largest avalanches in the north around Bear Pass and Ningunsaw (in the size 2.5-3.5 range). Cooling temperatures will make natural avalanches unlikely this weekend, but human triggering storm slabs will remain possible.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few small wet slabs were reactive to ski cutting in the Howsons on Thursday (up to size 1.5). Very large natural and explosive triggered avalanches have been reported over the past few days in the northern parts of the region where the deep persistent slabs are more reactive.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For the weekend, watch for reactive wind slabs at higher elevations. Also keep in mind that a basal weakness continues to drive a low probability/high consequence deep persistent avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas. It may also be possible for a smaller avalanche to 'step down' to this layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday and Friday morning include natural and skier triggered 15-60 cm thick storm and wind slab avalanches up to Size 2. One skier-triggered storm slab stepped down to facets buried early February down 70 cm. Other reports include continued natural wet loose avalanche activity up to Size 2.5 at lower elevations. T</span><span class="s_3FE45715">ouchy new storm slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday are limited, but include continued natural wet avalanche activity up to Size 3 in response to heavy loading and warming from rain at lower elevations. Last weekend, several rider triggered avalanches were reported on the MIN including a size 3 that resulted in a full burial. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e3c8a40e-47d1-4067-b756-77d6c7b8fc2b" target="_blank"><span class="s_9255B882">Click here more details (1).</span></a><span class="s_AA239A9B"> </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/c42a7298-7690-4763-a46d-fdd1db7b93d0" target="_blank"><span class="s_9255B882">(2),</span></a><span class="s_AA239A9B"> </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/bd397907-2499-4069-9c9b-fed8db25e09a" target="_blank"><span class="s_9255B882">and (3).</span></a><span class="s_3FE45715"> Touchy new wind slabs are likely sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include results from extensive explosives control in the Bonnington Range, Kootenay Pass, and southeast of Nelson. Results were generally classed as storm slabs, with sizes ranging primarily from 2-2.5 and crown fractures typically 30-60 cm in depth. Two Size 3 results were recorded, one of which is suspected to have stepped all the way down to our November crust, at a 100 cm depth at that location. Several larger results in the Bonningtons are also suspected to have involved our February 3rd interface. Skier controlled storm slabs were also reported to Size 2.5 while a number of wet slab avalanches were recorded at lower elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity was observed over the past 24hrs. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported, however observations of alpine elevations have been limited.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday and Friday morning include natural, ski-cut and explosives controlled 15-40 cm thick storm and wind slab avalanches up to Size 2.5 (typically in the alpine, on northerly or east aspects). Other reports from late last week include continued natural wet avalanche activity up to Size 2.5 at lower elevations below the rain line. Touchy new storm slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday and Friday morning include natural, ski-cut and explosives controlled 20-40 cm thick storm and wind slab avalanches up to Size 2. Explosives control also produced numerous 30-80 cm thick Size 2 deep persistent slab avalanches running on basal facets and depth hoar in previously controlled steep northeast facing terrain. Other reports include continued natural wet loose avalanche activity up to Size 2 at treeline and below. Touchy new storm slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday. Widespread storm slab activity occurred on Thursday and Friday night (typically in the size 2 range), but has tapered off with cooling temperatures. The new storm snow will form fresh wind slabs at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche observations are limited. Earlier in the week, there were isolated reports of size 2 natural deep persistent slab avalanches around Waterton and Elkford. A few size 1-2 loose wet avalanches were reported at lower elevations during Thursday's storm, but cooling temperatures have improved the stability of the old storm snow. On Sunday, watch for fresh wind slabs at higher elevations. Also keep in mind that the deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, reports of natural activity were limited to one size 2 wet slab at around 1900 m elevation. Explosives triggered a couple size 2 cornices and one size 1.5 storm slab which was 20 cm thick. On Thursday, a few natural storm slabs up to size 3 were observed and explosives triggered a few size 2 storm slabs which were typically around 60 cm thick. A widespread natural avalanche cycle occurred on Tuesday and Wednesday during the warm storm system.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed on Friday. On Thursday, explosive control in the Duffey triggered several size 2-2.5 slabs with 30-50 cm thick crowns, noted for pulling into low angle terrain above the start zones. Widespread natural activity was reported on Wednesday and early Thursday during the warm storm system. Many of these avalanches were wet and gouged all the way to ground in confined paths. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, several small skier triggered slabs (size 1-1.5) were reported on a variety of aspects around 1500 m, including a few that were triggered remotely. More evidence of natural avalanche activity during last week's storm was also reported (up to size 3.5).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs are becoming less reactive with cooling temperatures, but triggering wind slabs remains a concern in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche observations are limited. On Thursday, a size 2 natural wind slab was reported on a northwest treeline aspect. During the warm storm earlier this week, a few small wet slabs were reactive to ski cutting in the Howsons and very large natural and explosive triggered avalanches were reported in northern parts of the region where deep persistent slabs have been more reactive.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, watch for reactive wind slabs at higher elevations. Also keep in mind that a basal weakness continues to drive a low probability/high consequence deep persistent avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday and Friday morning include natural and skier triggered 15-60 cm thick storm and wind slab avalanches up to Size 2. One skier-triggered storm slab stepped down to facets buried early February down 70 cm. Other reports from Friday include natural wet loose avalanche activity up to Size 2.5 at lower elevations, including solar (south) aspects. Touchy new storm slabs (think northerly aspects in the alpine) are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A large natural wet avalanche cycle up to Size 3 occurred late last week in response to heavy loading and warming from rain at lower elevations. A week ago, several rider triggered avalanches were reported on the MIN including a size 3 that resulted in a full burial. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e3c8a40e-47d1-4067-b756-77d6c7b8fc2b" target="_blank"><span class="s_9255B882">Click here more details</span></a><span class="s_AA239A9B"> (</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e3c8a40e-47d1-4067-b756-77d6c7b8fc2b" target="_blank"><span class="s_9255B882">1</span></a><span class="s_AA239A9B">). (</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/c42a7298-7690-4763-a46d-fdd1db7b93d0" target="_blank"><span class="s_9255B882">2</span></a><span class="s_AA239A9B">), and (</span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/bd397907-2499-4069-9c9b-fed8db25e09a" target="_blank"><span class="s_9255B882">3</span></a><span class="s_AA239A9B">). Touchy new wind slabs are likely sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, natural activity was limited to one size 1.5 storm slab avalanche on a north aspect and numerous loose wet avalanches up to size 2.5 from south aspects. Explosives and ski cutting triggered numerous storm slabs up to size 2 on north aspects above 2000 m with 10-40 cm thick slabs. On Thursday, a natural size 3 persistent slab avalanche was observed on a northeast aspect at 2100 m elevation. The slab was 200 cm thick and was suspected to have failed on an old facet layer in the middle of the snowpack. Widespread natural avalanche activity occurred during the storm on Thursday including storm slabs up to size 3, mainly from north facing alpine terrain. These slabs were 30-40 cm thick. Explosive control on Thursday resulted widespread storm slabs, some of which stepped down to deeper layers in the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity was observed over the past 24hrs. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported recently. However, observations from alpine elevations have been limited.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A couple of skier-triggered wind slab avalanches (to Size 1.5) were reported on steeper (38 degree) north or northwest aspect slopes near 2100m on Saturday. There was also a natural wind slab (Size 2.0) reported on a steep easterly feature near ridge crest at 2200m in the Monashees. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs at higher elevations are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported in the past 24 hours. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs from recent snowfall remain sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, reactive storm slabs produced a few size 1.5 naturally triggered avalanches in alpine terrain, several size 1.5 skier triggered avalanches at treeline, and numerous size 2-2.5 explosive triggered avalanches in alpine terrain. Small loose wet avalanches were reported at lower elevations as well. On Monday, storm slabs will likely remain reactive to human triggers at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, a few size 1-1.5 naturally triggered storm slabs and loose dry avalanches were reported on north and east treeline aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, watch for fresh wind slabs at higher elevations. Also keep in mind that the deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, explosives released two large cornices which did not trigger slabs on the slopes below. On Friday, reports of natural activity were limited to one size 2 wet slab at around 1900 m elevation. Explosives triggered a couple size 2 cornices and one size 1.5 storm slab which was 20 cm thick. On Thursday, a few natural storm slabs up to size 3 were observed and explosives triggered a few size 2 storm slabs which were typically around 60 cm thick. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, new wind slabs are expected to develop in exposed high elevation terrain. Large cornices which developed last week may still be weak and could fail under the weight of a person.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday. On Friday, a size 3 persistent slab avalanche was observed up the Hurley at treeline elevation and likely failed on a weak layer from early February. A MIN post describes a natural cornice triggered size 2 storm slab avalanche which occurred on a northeast aspect at 2050 m elevation near the Wendy Thompson hut. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/1e909c77-783e-43cc-9525-5b7a375a6c34" target="_blank"><span class="s_9255B882">Click here for more details.</span></a><span class="s_AA239A9B"> On Thursday, explosive control in the Duffey triggered several size 2-2.5 slabs with 30-50 cm thick crowns, noted for pulling into low angle terrain above the start zones. Widespread natural activity was reported on Wednesday and early Thursday during the warm storm system. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, thin new wind slabs may develop as a result of light snowfall and moderate southerly winds.&nbsp; These slabs may be touchy where they overlie the firm crust layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, several small size 1 wind slabs were reported. Small loose dry avalanches running on the rain crust have also been reactive to skier traffic. Watch for isolated pockets where thicker wind slabs could produce larger avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, numerous small natural wind slabs (size 1-1.5) were reported on northwest aspects around treeline. </span><span class="s_3FE45715">Small loose dry avalanches running above the rain crust were reported in steep terrain. Watch for isolated pockets where thicker wind slabs could produce larger avalanches. </span><span class="s_AA239A9B">Also keep in mind that a basal weakness continues to drive a low probability/high consequence avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On the weekend we had a few reports of natural cornice fall in addition to lingering storm and wind slab avalanches, mostly Size 1.5 on high northerly aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs (think northerly aspects in the alpine) are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We had reports of a machine-triggered wind slab avalanche (Size 2) on a steep northeast aspect at 2100m on Saturday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Touchy new wind slabs are likely sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday. On Friday, natural activity was limited to one size 1.5 storm slab avalanche on a north aspect and numerous loose wet avalanches up to size 2.5 from south aspects. Explosives and ski cutting triggered numerous storm slabs up to size 2 on north aspects above 2000 m with 10-40 cm thick slabs. On Thursday, a natural size 3 persistent slab avalanche was observed on a northeast aspect at 2100 m elevation. The slab was 200 cm thick and was suspected to have failed on an old facet layer in the middle of the snowpack. Widespread natural avalanche activity occurred during the storm on Thursday including storm slabs up to size 3, mainly from north facing alpine terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow has generally stabilized but may still be reactive on north aspects where buried surface hoar is preserved, steep slopes where the crust acts as a sliding layer, or recent wind loaded terrain features. Deeper weak layers have become difficult to trigger but smaller avalanches could still step down and result in very large avalanches in isolated areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new natural avalanche activity was observed over the past 24hrs. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported recently. Widespread natural avalanche and cornice activity occurred last week during the warm storm system. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Heavy snow and moderate winds Sunday overnight and early Monday are expected to form storm slabs. These slabs are expected to be touchy in wind loaded terrain and steep slopes where the new snow sits on the hard crust layer. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Natural wind slab activity (to Size 2) was reported on Sunday up near 2200m on steep east and northwest aspects in this region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A couple of skier-triggered wind slab avalanches (to Size 1.5) were reported on steeper (38 degree) north or northwest aspect slopes near 2100m on Saturday. There was also a natural wind slab (Size 2.0) reported on a steep easterly feature near ridge crest at 2200m in the Monashees.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs at higher elevations are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday afternoon we had three separate large avalanches: one natural and two triggered by humans:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">1) A Size 3 persistent slab (50-120cm thick) near Golden was remote triggered by a touring party on a southeast aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">2) A Size 2.5 persistent slab (40-75cm thick) near Golden was triggered by a skier on a northeast aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">3) A Size 2.5 persistent slab (30cm thick) near Invermere ran naturally on a north aspect near 2600m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs from recent snowfall remain sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, small natural and skier controlled slides continued up to size 1.5. Some explosives controlled avalanches were reported up to size 2.0. On Sunday, reactive storm slabs produced a few size 1.5 naturally triggered avalanches in alpine terrain, several size 1.5 skier triggered avalanches at treeline, and numerous size 2-2.5 explosive triggered avalanches in alpine terrain. Small loose wet avalanches were reported at lower elevations as well. On Monday, storm slabs will likely remain reactive to human triggers at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Forecast new snow and wind may develop new storm slabs at treeline and above. These new storm slabs may not bond well to the old surface crust. Also keep in mind that the deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, avalanche activity was limited to ski cutting producing a few size 1 soft slabs which were 10-15 cm thick and isolated to the most recent storm snow. On Saturday, explosives released two large cornices which did not trigger slabs on the slopes below. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, lingering wind slabs are the main concern. Look for these in immediately leeward features on northerly aspects in exposed terrain.  Sluffing from steep sun exposed slopes is also possible during the heat of the afternoon.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday or Sunday. On Friday, a size 3 persistent slab avalanche was observed up the Hurley at treeline elevation and likely failed on the weak layer from early February.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Some size 1.0 soft slab or loose snow avalanches were triggered in the Shames backcountry on north through east aspects in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, numerous small natural wind slabs (size 1-1.5) were reported on northwest aspects around treeline. </span><span class="s_3FE45715">Small loose dry avalanches running above the rain crust were reported in steep terrain. Watch for isolated pockets where thicker wind slabs could produce larger avalanches. </span><span class="s_AA239A9B">Also keep in mind that a basal weakness continues to drive a low probability/high consequence avalanche problem for the region. Very large avalanches remain possible, especially in shallow snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1-2 loose dry natural avalanches were reported on Monday running on steep solar (South) aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1-1.5 wind slab natural avalanches were reported on steep westerly and southerly slopes in the alpine north of Revelstoke. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday there was a spooky remote-triggered Size 3 near Valemount. It was at ridge crest, upper treeline elevation on a southwest aspect. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/75773473-3dc9-455d-b3e0-a9c1c2e3ebf6" target="_blank"><span class="s_9255B882">See here for this great MIN post</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Since temperatures have cooled down over the weekend we've had limited reports of slab avalanches, even with cornice fall as a trigger.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report from Monday shows that ski cutting resulted in four size 1 storm slabs.  These were 25-30 cm thick and occurred on north and east aspects at around 2000 m elevation.  On Sunday, two natural storm slab avalanches size 1-1.5 were observed. The larger of these was reported to have released on the crust layer. Natural sluffing was also reported from steep terrain features on north and east aspects. Explosives and ski cutting triggered numerous size 1 storm slabs which were typically around 25 cm thick. No new avalanches were reported on Saturday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, the new snow is expected to be reactive to human-triggering.  Storm slabs may fail on a storm interface or could release a bit deeper on the widespread crust layer.  Deeper instabilities in the snowpack also remain a concern and storm slab avalanches could step down to a deeper layers resulting in very large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few naturally triggered slab avalanches between size 2.5 and 3.0 have occurred in the past 12hrs. These slabs ranged between 30 and 70cm deep, occurred in steep Alpine terrain on East or South-East aspects, and ran to valley floor.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported recently. Natural avalanche activity was possible during the storm Sunday night. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, the recent storm snow may still be reactive to human-triggering, especially in wind loaded terrain and steep slopes where the new snow sits on the hard crust layer.&nbsp; </span><span class="s_3FE45715">It may also be possible to trigger wet sluffs on steep sun exposed slopes during the heat of the afternoon.</span><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday we had reports of a couple of skier-triggered Size 1.5 storm slab avalanches (20-35 cm thick) on a variety of aspects near 2100m elevation. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural wind slab activity (to Size 2) was reported on Sunday up near 2200m on steep east and northwest aspects in this region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A couple of skier-triggered wind slab avalanches (to Size 1.5) were reported on steeper (38 degree) north or northwest aspect slopes near 2100m on Saturday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs at higher elevations are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday afternoon we had three spooky large avalanches: one natural and two triggered by humans:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">1) A Size 2.5 persistent slab (40-75cm thick) near Golden was triggered by a skier on a northeast aspect near 2300m. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/501af72e-d60e-4df5-ab15-f31b43911226" target="_blank"><span class="s_9255B882">See here for this great MIN post</span></a><span class="s_AA239A9B">.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">2) A Size 3 persistent slab (50-120cm thick) near Golden was remote triggered by a touring party on a southeast aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">3) A Size 2.5 persistent slab (30cm thick) near Invermere ran naturally on a north aspect near 2600m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs from recent snowfall remain sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Natural and controlled avalanches up to size 2.5 released during and after the overnight storm that brought another 25 cm of snow. Most of the avalanches were on north through east aspects due to the strong southwest winds overnight. These avalanches involved the recent storm snow up to 60 cm deep. There was also a report of a natural avalanche size 3.5 on Mt Harmer on an East aspect at 2100 metres that appears to have released on or stepped down to the weak deep persistent layer of sugary facets near the ground. Deep persistent weak layer avalanches were not expected, and we think that they are in the range of unlikely-possible.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A natural cycle during the storm up to size 1.5 was reported on Tuesday from the Limestone area. Cornice growth was reported to be significant and may have triggered at least one of the storm slabs. Also keep in mind that the deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report today of a size 3.5 avalanche at Mt Harmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, natural sluffing was observed from steep sun exposed slopes. Skiers and explosives triggered a few storm slabs and wind slabs size 1-1.5. These slabs were typically 20-40 cm thick and one wind slab was up to 60 cm thick. On Sunday, avalanche activity was limited to ski cutting producing a few size 1 soft slabs which were 10-15 cm thick and isolated to the most recent storm snow. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, lingering wind slabs are the main concern. Look for these in immediately leeward features on northerly aspects in exposed terrain. Sluffing from steep sun exposed slopes is also possible during the heat of the afternoon.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, natural sluffing was observed from steep sun exposed slopes. A small natural cornice fall was also observed from a northeast aspect at 2150 m. No new avalanches were reported on Saturday or Sunday. On Friday, a size 3 persistent slab avalanche was observed up the Hurley at treeline elevation and likely failed on the weak layer from early February.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, lingering wind slabs are the main concern. Look for these in immediately leeward features on northerly aspects in exposed terrain. Sluffing from steep sun exposed slopes is also possible during the heat of the afternoon.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Some size 1.0 soft slab or loose snow avalanches were reported on Monday from areas just west and north of Terrace, and some small wind slabs were skier controlled in areas near Stewart. No new natural avalanches reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Report on Tuesday of a size 2.0 avalanche on the &quot;5000&quot; run off Hudson Bay Mountain in Smithers. This was a visual report from town, the sliding surface is unknown but suspected to be the recent storm snow.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday several Size 2 natural storm slab avalanches were reported in the Northern Monashees. The elevations ranged from 2000-2400m on a variety of aspects with average slab thickness of 40cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1-2 loose dry natural avalanches were reported on Monday running on steep solar (South) aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1-1.5 wind slab natural avalanches were reported on steep westerly and southerly slopes in the alpine north of Revelstoke.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday there was a spooky remote-triggered Size 3 near Valemount. It was at ridge crest, upper treeline elevation on a southwest aspect. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/75773473-3dc9-455d-b3e0-a9c1c2e3ebf6" target="_blank"><span class="s_9255B882">See here for this great MIN post</span></a><span class="s_AA239A9B">.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Since temperatures cooled down over the weekend, we've had limited reports of slab avalanches, even with cornice fall as a trigger.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, four natural size 1.5 storm slabs were observed in the Kootenay Pass area. These slabs were 10-20 cm thick. Ski cutting and explosives triggered numerous storm slabs size 1-1.5 throughout the region. These slabs were 10-30 cm thick and were failing on all aspects above around 1800 m elevation. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, the recent snow is expected to remain reactive to human-triggering. Storm slabs may fail on a storm interface or could release a bit deeper on the widespread crust layer. Deeper instabilities in the snowpack also remain an isolated concern and storm slab avalanches could step down to a deeper layers resulting in very large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A sz1.5 was noted below steep cliffs in the alpine. It only involved the storm snow.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported recently. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, lingering wind slabs are the main concern. Look for these in immediately leeward features on northerly aspects in exposed high elevation terrain. Sluffing from steep sun exposed slopes is also possible during the heat of the afternoon.</span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday we had reports of a skier-triggered Size 2 wind slab (average thickness of 45cm) on a northwest aspect around 2200m in the Monashees. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday we had reports of a couple of skier-triggered Size 1.5 storm slab avalanches (20-35 cm thick) on a variety of aspects near 2100m elevation.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural wind slab activity (to Size 2) was reported on Sunday up near 2200m on steep east and northwest aspects in this region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs at higher elevations are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">    </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday ski tourers near Kimberley remote-triggered a Size 2 wind slab on a southeast aspect near 2600m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday afternoon we had three spooky large avalanches: one natural and two triggered by humans:</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">1) A Size 2.5 persistent slab (40-75cm thick) near Golden was triggered by a skier on a northeast aspect near 2300m. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/501af72e-d60e-4df5-ab15-f31b43911226" target="_blank"><span class="s_9255B882">See here for this great MIN post.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">2) A Size 3 persistent slab (50-120cm thick) near Golden was remote triggered by a touring party on a southeast aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">3) A Size 2.5 persistent slab (30cm thick) near Invermere ran naturally on a north aspect near 2600m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs from recent snowfall remain sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There was a report on Tuesday of a natural avalanche size 3.5 on Mt Hosmer on an East aspect at 2100 metres that appears to have released on or stepped down to the weak deep persistent layer of sugary facets near the ground. On Wednesday we had a report of a size 3.0 avalanche on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres in the alpine in the Lizard range. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets. Explosives control on Wednesday resulted in cornice falls up to size 2.5, and storm slabs with some pockets of un-supported terrain stepping down to size 2.5. All avalanches reported were from north-northeast aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report on Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. Avalanche activity on Wednesday near Elkford was limited to loose snow up to size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday include observations of a natural cornice release triggering a Size 2.5 wind slab avalanche near the Pemberton Icefield. Ski cutting in the Whistler area also produced several Size 1 wind slab releases. Much like the previous day, numerous loose snow point releases were again observed running naturally from steep solar aspects during the afternoon.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Thursday, lingering wind slabs are the main concern. Look for these in the immediate lee of exposed terrain features, and particularly on northerly aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Ski cutting continued to produce Size 1 wind slab releases in the region on Tuesday. As on Monday, natural sluffing was again observed from steep sun exposed slopes, with deposits reaching up to Size 1.5. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A natural cornice failure also triggered a Size 2.5 wind slab in the Pemberton Icefield area, immediately adjacent to the northern part of the South Coast Inland region. Several other natural cornice releases to Size 2 were also observed on north aspects in the alpine, however these failed to trigger slabs below.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Although the report is older, a Size 3 persistent slab avalanche was observed up the Hurley at treeline elevation on Friday. It likely failed on the weak layer from early February.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Thursday, lingering wind slabs are the main concern. Look for these in immediately leeward features on northerly aspects in exposed terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche activity reported. Some loose snow sluffing from steep terrain has been reported. Changing wind directions may develop new wind slabs in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Report on Tuesday of a size 2.0 avalanche on the &quot;5000&quot; run off Hudson Bay Mountain in Smithers. This was a visual report from town, the sliding surface is unknown but suspected to be the recent storm snow.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday several Size 2 natural storm slab avalanches were reported in the Northern Monashees. The elevations ranged from 2000-2400m on a variety of aspects with average slab thickness of 40cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1-2 loose dry natural avalanches were reported on Monday running on steep solar (South) aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1-1.5 wind slab natural avalanches were reported on steep westerly and southerly slopes in the alpine north of Revelstoke.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slabs are sensitive to light triggers and have the potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday there was a machine-triggered Size 2 near Wells that resulted in a burial. </span><a href="https://www.facebook.com/photo.php?fbid=10154122705596401&amp;set=pcb.10154122711331401&amp;type=3&amp;theater" target="_blank"><span class="s_9255B882">See here for the Facebook post</span></a><span class="s_AA239A9B">.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday there was a spooky remote-triggered Size 3 near Valemount. It was at ridge crest, upper treeline elevation on a southwest aspect. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/75773473-3dc9-455d-b3e0-a9c1c2e3ebf6" target="_blank"><span class="s_9255B882">See here for this great MIN post</span></a><span class="s_AA239A9B">.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Since temperatures cooled down over the weekend, we've had limited reports of slab avalanches, even with cornice fall as a trigger.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday reveal a continuation of Monday's avalanche activity, with a skier-triggered Size 2 storm slab occurring on a southwest aspect south of Nelson, as well as numerous explosives controlled storm slabs ranging from Size 1.5-2 running on north and northwest aspects. Crown depths have averaged around 20 cm, but have also been noted as deep as 50 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Monday's reports included four natural Size 1.5 storm slabs observed in the Kootenay Pass area at 10-20 cm thick. Ski cutting and explosives control resulted in numerous storm slabs Size 1-1.5 throughout the region. These slabs were 10-30 cm thick and were failing on all aspects above around 1800 m elevation. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Thursday, expect our storm slab problem to remain in the realm of human-triggering. Storm slabs may fail on a storm interface or could release a bit deeper on the widespread crust layer. Deeper instabilities in the snowpack also remain an isolated concern, meaning that storm slab avalanches have the potential to step down to deeper layers and result in very large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No observations..</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported recently. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Although the extent of recent wind slab formation is uncertain, the possibility for lingering wind slabs remains a concern. Look for these in immediate lee features on northerly aspects in exposed, high elevation terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, numerous storm slabs in the recent snow were skier triggered on northerly aspects at treeline and in the alpine. Most were in the size 1-1.5 range, although a few reports were up to size 2 including a remote trigger on a cross-loaded terrain feature.  A cornice failure on a northeast aspect triggered a size 2 slab on the mid-February surface hoar layer. Widespread size 1 loose dry avalanches were triggered by skiers in steep terrain and natural loose dry activity up to size 1.5 was reported on solar aspects.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Small avalanches in the new storm snow remain the primary concern on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a few small loose dry avalanches were reported in steep terrain., On Wednesday, as few size 1 skier triggered slabs were reported in unsupported alpine terrain and a few older size 1-2 storm slabs were reported on northerly aspects. Earlier in the week, there were several large skier triggered avalanches, including a remotely triggered size 2 wind slab near Kimberly, a skier-triggered size 2.5 persistent slab near Golden, and a remotely-triggered size 3 persistent slab near Golden. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/501af72e-d60e-4df5-ab15-f31b43911226" target="_blank"><span class="s_9255B882">See here for a MIN report from one of the large avalanches near Golden.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_3FE45715">Small avalanches in the new storm snow remain the primary concern on Friday, but remember they have t</span><span class="s_AA239A9B">he potential to step down and trigger persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported. There was a report on Tuesday of a natural avalanche size 3.5 on Mt Hosmer on an East aspect at 2100 metres that appears to have released on or stepped down to the weak deep persistent layer of sugary facets near the ground. On Wednesday we had a report of a size 3.0 avalanche on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres in the alpine in the Lizard range. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow has not settled into a cohesive slab, and remains loose, light, and dry. Slope testing in the Crowsnest North on Thursday did not produce any shears or signs of instability. One old storm snow avalanche was reported size 1.5 that probably released during the storm. The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report on Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. Avalanche activity on Wednesday near Elkford was limited to loose snow up to size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports of natural avalanche activity in the region have tapered off, while ski cutting of wind slabs in the Whistler area has begun to produce diminishing returns, with negative results or smaller results to a maximum of Size 1. In the far north of the region, however, several wind slabs were observed to have run naturally up to Size 2.5 out of steep, leeward terrain. Recent strong southerly winds were identified as the trigger.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday included an observation of a natural cornice release triggering a Size 2.5 wind slab avalanche near the Pemberton Icefield. Ski cutting in the Whistler area also produced more consistent Size 1 wind slab releases. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Friday, lingering wind slabs are the main concern. Look for these in the immediate lee of exposed terrain features, and particularly on northerly aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include several observations of wind slabs having released naturally up to Size 2.5 on steep, convex features in the adjacent, northern part of the Sea to Sky region. These occurrences are believed to be a direct result of recent strong southerly winds.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a natural cornice failure triggered a Size 2.5 wind slab in the Pemberton Icefield area, adjacent to the northern part of the South Coast Inland region. Several other natural cornice releases to Size 2 were also observed on north aspects in the alpine, however these failed to trigger slabs below.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Although the report is older, a Size 3 persistent slab avalanche was observed up the Hurley at treeline elevation on Friday. It likely failed on the weak layer from early February.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Friday, lingering wind slabs are the main concern. Look for these in immediately leeward features on northerly aspects in exposed terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche activity reported. Some loose snow sluffing from steep terrain has been reported. Changing wind directions may develop new wind slabs in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, several size 1 slab and loose dry avalanches were triggered by skiers in the new snow. Natural loose dry activity up to size 1.5 was reported on steep solar aspects. A size 2.5 ice fall in glaciated alpine terrain entrained a significant amount of loose snow. Small avalanches in the new storm snow remain the primary concern on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Few avalanches have been reported the past few days. On Wednesday, a 35 cm deep size 1 slab was triggered by a skier on a northeast aspect and a size 2 slab was triggered by a cornice fall. Last weekend, several larger avalanches were reported, including a remotely triggered size 3 avalanche on a deep persistent weak layer near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank" /><span class="s_AA239A9B">With cooling temperatures and benign weather, watch for isolated wind slabs at higher elevations and stay aware of the low probability - high consequence scenario of triggering a large persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Wednesday details a skier triggered Size 1.5 slab avalanche occurrence on a southwest aspect in the Evening Ridge area. With a depth of approximately 8 inches it is suspected to have failed on a mid-storm interface layer. Loose dry avalanches were also observed running to Size 1.5 on Wednesday, both naturally from steep solar aspects as well as under skier traffic on steep north aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday included a skier-triggered Size 2 storm slab occurring on a southwest aspect south of Nelson, as well as numerous explosives controlled storm slabs ranging from Size 1.5-2 running on north and northwest aspects. Crown depths averaged around 20 cm, but were also noted as deep as 50 cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Friday, expect our storm slab problem to remain in the realm of human-triggering and particularly touchy in wind affected areas. Storm slabs may fail on a storm interface or could release a bit deeper on the widespread crust layer. Deeper instabilities in the snowpack also remain an isolated concern, meaning that storm slab avalanches have the potential to step down to deeper layers and result in very large avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Some small loose dry avalanches were noted today. They did not travel far and did not trigger any slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new slab avalanches have been reported recently but the thin graupel layer that exists on the surface in some areas has been noted sluffing fast over long distances. Forecast accumulations of new snow can be expected to increase this hazard.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Although the extent of recent wind slab formation is uncertain, the possibility for lingering wind slabs remains a concern. Look for these in immediate lee features on northerly aspects in exposed, high elevation terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, several small size 1 wind slabs were skier triggered on isolated wind loaded features and above the mid-February crust. Widespread sluffing was reported in the new snow. A size 2.5 cornice failure on a east aspect in the Selkirks did not trigger a slab on the slope below. Small avalanches in the new snow remain the primary concern over the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a natural size 2.5 persistent slab was reported on a south alpine aspect in the southern Purcells, failing on the February 3rd surface hoar 100 cm deep. A explosive cornice control mission on north aspects generally did not trigger slabs on the slopes below, with one exception of a slab in the recent storm snow. A few small loose dry avalanches were reported in steep terrain. Earlier in the week, there were several large skier triggered avalanches, including a remotely triggered size 2 wind slab near Kimberly, a skier-triggered size 2.5 persistent slab near Golden, and a remotely-triggered size 3 persistent slab near Golden. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/501af72e-d60e-4df5-ab15-f31b43911226" target="_blank"><span class="s_9255B882">See here for a MIN report from one of the large avalanches near Golden.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosives control near Fernie resulted in a deep persistent avalanche on Friday; this avalanche was size 2.5 on a north aspect at 2000 metres, and is believed to have released on the mid-December facets. There was a report on Tuesday of a natural avalanche size 3.5 on Mt Hosmer on an East aspect at 2100 metres that appears to have released on or stepped down to the weak deep persistent layer of sugary facets near the ground. On Wednesday we had a report of a size 3.0 avalanche on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres in the alpine in the Lizard range. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The recent storm snow has not settled into a cohesive slab, and remains loose, light, and dry. Some loose dry avalanches to size 1.5 were observed on Friday in the Elk Valley North, near Crown Mountain. Slope testing in the Crowsnest North on Thursday did not produce any shears or signs of instability. One old storm snow avalanche was reported size 1.5 that probably released during the storm. The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report on Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. Avalanche activity on Wednesday near Elkford was limited to loose snow up to size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports of both natural and skier triggered wind slab avalanche activity in the region have tapered off, with small natural and skier triggered loose snow releases dominating Thursday's reports. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Wednesday describes a rider involvement in a wind slab avalanche on Fissile Peak, highlighting our ongoing concerns for isolated wind slabs in alpine terrain. On Wednesday in the far north of the region, several wind slabs were observed to have run naturally up to Size 2.5 out of steep, leeward terrain. Recent strong southerly winds were identified as the trigger. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A social media report from Thursday showed an impressive persistent slab release to approximately Size 3 in the Hurley area. The slab was triggered with a cornice cut on an apparently northeast aspect, though it should be noted that the cornice was not large. </span><a href="https://youtu.be/WxddgZnCAZY" target="_blank"><span class="s_9255B882">See the video here. </span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">The above report has combined with the Size 3 persistent slab avalanche observed up the Hurley on Friday to suggest an emerging pattern of persistent slab activity in that part of the region. The failure planes of each slide remain uncertain, but the early February surface hoar layer was suspected in Friday's occurrence.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Thursday describes two skier-triggered Size 2 wind slab avalanches near Mt. Matier, serving as a reminder that our wind slab problem hasn't disappeared yet. While wind slabs remain a concern throughout the region, a low-probability/high consequence avalanche problem should be driving a more cautious approach to backcountry travel in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanche activity reported. Some loose snow sluffing from steep terrain has been reported. Changing wind directions may develop new wind slabs in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, isolated size 1 wind slabs were skier triggered in the immediate lee of alpine features. Widespread sluffing was reported in the new snow. Small avalanches in the new storm snow remain the primary concern over the weekend. The exception is the northern part of the region near Blue River and Valemount where deeper persistent slabs linger. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of some notable recent avalanches around Valemount.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Few avalanches have been reported the past few days. On Thursday, ski cutting produced a few size 1 wind slabs on northerly alpine features. Some fast moving sluffing in the recent snow was also reported in steep alpine terrain. Last weekend, several larger avalanches were reported, including a remotely triggered size 3 avalanche on a deep persistent weak layer near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">Watch for isolated wind slabs at higher elevations and stay aware of the low probability - high consequence scenario of triggering a deep persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include observations of both explosives and skier triggered storm slabs generally Size 1.5-2. A ski cut Size 2 wind slab has also drawn attention to the effect of recent northerly winds in the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Wednesday details a naturally triggered Size 1.5 slab avalanche occurrence on a southwest aspect in the Evening Ridge area. With a depth of approximately 8 inches it is suspected to have failed on a mid-storm interface layer. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Saturday, expect our storm slab problem to remain in the realm of human-triggering, but becoming increasingly specific to wind affected areas and less supported terrain. Although our persistent slab problem is no longer listed, deeper instabilities in the snowpack remain a lingering concern, particularly in areas with an unusually shallow snowpack and where faceted (sugary) snow remains preserved near the base of the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new today, but some large naturally triggered avalanches have occurred over the past week.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">While touchy conditions were expected at the new snow interface on Friday, no avalanche activity has yet been reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Lots of people in the mountains the past few days have reported very little in terms of significant avalanche observations. Isolated size 1 wind slabs have been reported in alpine terrain and widespread sluffing has been reported in steep terrain. A few natural cornice falls in the size 2 range have been reported in the Selkirks. Small avalanches in the new snow remain the primary concern over the weekend.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, several skier triggered size 1-1.5 slabs were reported on steep convex alpine features (30 cm deep). Several large natural persistent slab avalanches have been reported on the western slopes of the Purcells, including a cornice triggered size 3.5 avalanche on the November crust and two size 2.5 avalanches the February 3rd surface hoar. Several large skier triggered avalanches were reported last week, including a remotely triggered size 2 wind slab near Kimberly, a skier-triggered size 2.5 persistent slab near Golden, and a remotely-triggered size 3 persistent slab near Golden. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/501af72e-d60e-4df5-ab15-f31b43911226" target="_blank"><span class="s_9255B882">See here for a MIN report from one of the large avalanches near Golden.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosives control near Fernie resulted in a deep persistent avalanche on Friday; this avalanche was size 2.5 on a north aspect at 2000 metres, and is believed to have released on the mid-December facets. There was a report on Tuesday of a natural avalanche size 3.5 on Mt Hosmer on an East aspect at 2100 metres that appears to have released on or stepped down to the weak deep persistent layer of sugary facets near the ground. On Wednesday we had a report of a size 3.0 avalanche on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres in the alpine in the Lizard range. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Some loose dry avalanches to size 1.5 were observed on Friday in the Elk Valley North, near Crown Mountain. The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report on Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. Avalanche activity on Wednesday near Elkford was limited to loose snow up to size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports of both natural and skier triggered wind slab avalanche activity in the region have tapered off, with small natural and skier triggered loose snow releases from steep terrain dominating Thursday and Fridays reports. One MIN report from Thursday shows a great photo sequence of a skier triggered Size 1 slab release on a southeast aspect in the Tantalus Range. A few small 10 cm slabs (under Size 1) reacted to ski cutting on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Friday. A social media report from Thursday showed an impressive persistent slab release to approximately Size 3 in the Hurley area. The slab was triggered with a cornice cut on an apparently northeast aspect, though it should be noted that the cornice was not large. </span><a href="https://youtu.be/WxddgZnCAZY" target="_blank"><span class="s_9255B882">See the video here. </span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">The above report has combined with the Size 3 persistent slab avalanche observed up the Hurley on Friday to suggest the possibility of an emerging pattern of persistent slab activity in that part of the region. The failure planes of each slide remain uncertain, but the early February surface hoar layer was suspected in Friday's occurrence.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Two MIN reports from Thursday describe three skier-triggered Size 2 wind slab avalanches near Mt. Matier, serving as a reminder that our wind slab problem hasn't disappeared yet. While wind slabs remain a concern throughout the region, a low-probability/high consequence avalanche problem should be driving a more cautious approach to backcountry travel in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No recent avalanche activity reported in the south of the region. Some loose snow sluffing from steep terrain has been reported. Changing wind directions may develop new wind slabs in the alpine. There was a report of a size 2.5 natural avalanche in the northern part of the region. This may have happened in the last 3 days and possibly failed on a persistent weak layer buried early february on a NW aspect in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported in the south of the region. There was a report of a size 2.5 natural avalanche in the northern part of the region. This may have happened in the last 3 days and possibly failed on a persistent weak layer buried early february on a NW aspect in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Lots of people in the mountains the past few days with very little in terms of significant avalanche observations. Isolated size 1 wind slabs have been reported in alpine terrain and widespread sluffing has been reported in steep terrain. Small avalanches in the new storm snow remain the primary concern. The exception is the northern part of the region near Valemount where deeper persistent slabs linger. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for some recent notable avalanches around Valemount.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Few avalanches have been reported the past few days. On Thursday, ski cutting produced a few size 1 wind slabs on northerly alpine features. Some fast moving sluffing in the recent snow was also reported in steep alpine terrain. Last weekend, several larger avalanches were reported, including a remotely triggered size 3 avalanche on a deep persistent weak layer near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B"> Watch for isolated wind slabs at higher elevations and stay aware of the low probability - high consequence scenario of triggering a deep persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday show diminished storm slab avalanche activity, with two ski cut Size 1 slabs reported in the Bonnington Range and in the Kootenay Pass area. The Bonnington slide took place on a steeper northwest facing slope at 2150 metres. The MIN report of the Kootenay Pass slide suggests it took a group effort to produce the release. Reports from Thursday included observations of both explosives and skier triggered storm slabs generally Size 1.5-2. A ski cut Size 2 wind slab also drew attention to the effect of recent northerly winds in the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Sunday, expect conditions to become touchier as the day progresses and new snow accumulates. Although our persistent slab problem is no longer listed, deeper instabilities in the snowpack remain a lingering concern, particularly in areas with an unusually shallow snowpack and where faceted (sugary) snow remains preserved near the base of the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new was noted today.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Please post your observations to the Mountain Information Network.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, small avalanches in the new snow were reported including natural and skier triggered size 1 wind slabs. A few size 2 natural avalanches were also reported in alpine terrain, potentially releasing on the mid-February interface 30-40 cm deep.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No notable avalanches were reported on Saturday. On Friday, several skier triggered size 1-1.5 slabs were reported on steep convex alpine features. Several large natural persistent slab avalanches have been reported on the western slopes of the Purcells, including a cornice triggered size 3.5 avalanche on the November crust and two size 2.5 avalanches the February 3rd surface hoar. Last week, three larger skier triggered avalanches were reported including a remotely-triggered size 3 persistent slab near Golden.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday control work produced a few wind slabs from size 1.5 to size 2 in north facing terrain. Cornice avalanches to size 1.5 were also triggered by control work on north through northeast facing terrain. On Friday explosive control near Fernie resulted in a deep persistent avalanche; this avalanche was size 2.5 on a north aspect at 2000 metres, and is believed to have released on the mid-December facets. There was a report from last Tuesday of a natural avalanche size 3.5 on Mt Hosmer on an East aspect at 2100 metres that appears to have released on, or stepped down to the weak deep persistent layer of sugary facets near the ground. Last Wednesday we had a report of a size 3.0 avalanche on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres in the alpine in the Lizard range. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, two small size 1 wind slabs were triggered by skiers. Some loose dry avalanches to size 1.5 were observed on Friday in the Elk Valley North, near Crown Mountain. The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report on Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. Avalanche activity on Wednesday near Elkford was limited to loose snow up to size 1.5.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include observations of several skier triggered Size 1-2 wind slab avalanches occurring in the Spearhead Range. These have generally been described occurring in the immediate lee of ridge features where recent southwesterly winds promoted new slab development. One observation of a Size 1 wind slab stands out for its mention of a remote trigger (10 metres away) and a 40 cm crown fracture. It should be noted that aggressive terrain selection in the Spearhead Range may have been a contributing factor to a few more recent avalanche observations. Aside from above mentioned events, reports of both natural and skier triggered wind slab avalanche activity in the region have generally tapered off, with small natural and skier triggered loose snow releases from steep terrain dominating reports from the end of the week. A few small 10 cm slabs (under Size 1) reacted to ski cutting in the Spearhead Range on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include one observation of a natural wind slab (size unknown, likely 1-2) releasing naturally on a northeast aspect in the Duffey Lake area in direct response to wind loading from the southwest. A social media report from Thursday showed a persistent slab release to approximately Size 3 in the Hurley area. The slab was triggered with a cornice cut on an apparently northeast aspect, though it should be noted that the cornice was not large. </span><a href="https://youtu.be/WxddgZnCAZY" target="_blank"><span class="s_9255B882">See the video here. </span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">The above report has combined with the Size 3 persistent slab avalanche observed up the Hurley last Friday to suggest the possibility of an emerging pattern of persistent slab activity in that part of the region. The failure planes of each slide remain uncertain, but the early February surface hoar layer was suspected in Friday's occurrence.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">While wind slabs remain an ongoing concern throughout the region (especially in the south) a low-probability/high consequence avalanche problem should be driving a more cautious approach to backcountry travel in the north of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday control work produced small size 1 avalanches running up to 10 cm in depth on the February 21st surface hoar interface. Some loose snow sluffing from steep terrain has been reported. Changing wind directions may develop new wind slabs in the alpine. There was a report of a size 2.5 natural avalanche in the northern part of the region. This may have happened in the last 4 days and possibly failed on a persistent weak layer buried early february on a NW aspect in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday wind slabs to size 1.5 were triggered by skiers on E aspects between 1600 and 1850 m. Previously, there was a report of a size 2.5 natural avalanche in the northern part of the region. This may have happened in the last 4 days and possibly failed on a persistent weak layer buried early february on a NW aspect in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, two near misses were reported in the Clemina Creek area near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">See MIN report for details.</span></a><span class="s_AA239A9B"> These were both size 2 persistent slab avalanches that released on deep facet layers on north-facing rocky alpine features - highlighting the localized dangerous conditions in that area </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">(see more here)</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche activity in the rest of the region has been limited to smaller avalanches in the new snow, primarily size 1-1.5 wind slabs in alpine terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Recent avalanche reports in the region are limited to size 1 wind slabs in the alpine and fast moving sluffs. However, many parts of the region have a similar snowpack structure to Clemina Creek, where two size 2 snowmobile triggered persistent slab avalanches were reported on Saturday (see MIN report </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">). Triggering a large deep persistent slab avalanche is a low probability - high consequence scenario that warrants an extra cautious approach to terrain. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include several skier triggered Size 1 slabs in the Valhallas and just north of Nelson. These released from north-facing slopes Three of the four slides were identified as storm slabs and reached up to 30 cm in depth. A MIN report from Ripple Ridge noted wind slabs forming, as well as cracking and whumphing on east aspects. Reports from Friday included two ski cut Size 1 slabs reported in the Bonnington Range and in the Kootenay Pass area. The Bonnington slide took place on a steeper northwest facing slope at 2150 metres. The MIN report of the Kootenay Pass slide suggests it took a group effort to produce the release.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">For Monday, keep aware of slab avalanche potential increasing as the new snow continues to settle and see wind effect. While wind slabs have become the dominating concern, the above mentioned storm slab releases also suggest the possibility for ongoing storm slab triggering potential. Although we are no longer listing a persistent slab problem, deeper instabilities in the snowpack remain an lingering concern in areas with an unusually shallow snowpack and where faceted (sugary) snow remains preserved near the base of the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several loose dry avalanches size 2 were noticed along highway #40.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Please post your observations to the Mountain Information Network.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, small avalanches in the new snow were reported including natural and skier triggered size 1 wind slabs on a variety of aspects. Sluffing in steep terrain was widespread. A few size 2 natural avalanches were also reported in alpine terrain, potentially releasing on the mid-February interface 30-40 cm deep. Winds will pick up again on Tuesday and form fresh wind slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche reports over the weekend were limited to sluffing in steep terrain (up to size 1.5 in the southern part of the region). Although older, some notable persistent slab avalanches were reported last week. This included natural activity on the western slopes of the Purcells (two size 2.5 avalanches on the February 3rd surface hoar and one size 3.5 avalanche on the November crust) and two large skier triggered avalanches near Golden (including a size 3 remotely-triggered avalanche on the mid-January interface). Triggering a persistent slab avalanche is currently a low probability - high consequence scenario that warrants a cautious approach to terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, numerous natural loose dry avalanches up to size 2 were reported from the Lizard Range. More significantly, a natural size 2.5 was also reported which started in the recent storm snow then stepped down to an older storm snow interface. Most of the recent avalanche activity was on northerly aspects above 1500m. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Last week proved several notable deep persistent avalanches including explosive control near Fernie, this avalanche was size 2.5 on a north aspect at 2000 metres, and is believed to have released on the mid-December facets. Last Tuesday a natural avalanche size 3.5 on Mt Hosmer on an East aspect at 2100 metres that appears to have released on, or stepped down to the weak deep persistent layer near the ground. Last Wednesday a size 3.0 avalanche was reported on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, numerous natural storm slabs were reported up to size 1.5 from steep NE terrain at 2200m. The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report last Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from the weekend include several skier triggered Size 1-2 wind slab avalanches up to 20 cm deep. These have generally been described occurring in the immediate lee of ridge features where recent southwesterly winds promoted new slab development. One observation of a Size 1 wind slab stands out for its mention of a remote trigger (10 metres away) and a 40 cm crown fracture. It should be noted that aggressive terrain selection may have been a contributing factor to a few more recent avalanche observations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from the weekend include one observation of a natural wind slab (size unknown, likely 1-2) on a northeast aspect in direct response to wind loading from the southwest, as well as strong northeasterly winds causing multiple natural avalanches up to Size 2 on lee aspects at treeline and above in the Duffey Lake area.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from last week and over the weekend include at least three persistent slab avalanches up to 1.5 m deep and Size 3 destructive potential in the Duffy Lake and Hurley Pass areas. The failure planes of each slide remain uncertain, but the early February surface hoar layer was suspected in at least one occurrence and facets in another.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">While wind slabs remain an ongoing concern throughout the region a low-probability/high consequence avalanche problem should be driving a more cautious approach to backcountry travel, particularly in the northern parts of the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday no new natural avalanche activity was reported, however; several skier triggered wind slabs up to size 1.5 were triggered in alpine elevations.  Changing wind directions and new storm snow will likely develop new wind slabs in the alpine. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, numerous natural wind slabs were reported up to size 1.5 which were triggered by the recent wind event. Previously, there was a report of a size 2.5 natural avalanche in the northern part of the region. This may have happened in the last 5 days and possibly failed on a persistent weak layer buried early february on a NW aspect in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, two near misses were reported in the Clemina Creek area near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">See MIN report for details.</span></a><span class="s_AA239A9B"> These were both size 2 persistent slab avalanches that released on deep facet layers on north-facing rocky alpine features - highlighting the localized dangerous conditions in that area </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">(see more here)</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Avalanche activity in the rest of the region has been limited to smaller avalanches in the new snow, primarily size 1-1.5 wind slabs in alpine terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On the weekend several natural wind slabs in the size 1-2 range were reported in steep alpine terrain. Many parts of the region have a similar snowpack structure to Clemina Creek, where two size 2 snowmobile triggered persistent slab avalanches were reported on Saturday (see MIN report </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">). Triggering a large deep persistent slab avalanche is a low probability - high consequence scenario that warrants an extra cautious approach to terrain. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from the weekend include numerous skier-triggered loose dry sluffs and slabs up to Size 1.5. A MIN report from Ripple Ridge noted wind slabs forming, as well as cracking and whumphing on east aspects. Slab avalanche potential is expected to increase with settlement and wind-loading.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Two size 2.0 naturally triggered slabs occurred on Little Tent Ridge in the last 24 to 48hrs. These were both size 2.0 avalanches initiating near 2400m on a steep East aspect. Depths ranged from 40 to 60cm, with up to 80m wide propagations and ran for approximately 500m.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported. Please post your observations to the Mountain Information Network.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, small avalanches in the new snow were reported including natural and skier triggered size 1 wind slabs on a variety of aspects. Sluffing in steep terrain was widespread. A few size 2 natural avalanches were also reported in alpine terrain, potentially releasing on the mid-February interface 30-40 cm deep. </span><span class="s_1681A555">L</span><span class="s_3FE45715">ooking forward, new snow and extreme winds on Tuesday night are expected to promote new wind slab activity at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Some notable persistent slab avalanches were reported last week. This included natural activity on the western slopes of the Purcells (two size 2.5 avalanches on the February 3rd surface hoar and one size 3.5 avalanche on the November crust) and two large skier triggered avalanches near Golden (including a size 3 remotely-triggered avalanche on the mid-January interface). Triggering a persistent slab avalanche is currently a low probability - high consequence scenario that warrants a cautious approach to terrain. </span><span class="s_3FE45715">Looking forward, new snow and extreme winds on Tuesday night are expected to promote new wind slab activity at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Overnight, new storm snow and winds are causing widespread natural slab avalanches in the Lizard Range.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Last week saw several notable deep persistent avalanches including explosive control near Fernie, this avalanche was size 2.5 on a north aspect at 2000 metres, and is believed to have released on the mid-December facets. Last Tuesday a natural avalanche size 3.5 occurred on Mt Hosmer on an East aspect at 2100 metres that appears to have released on, or stepped down to the weak deep persistent layer near the ground. Last Wednesday a size 3.0 avalanche was reported on &quot;Big Steep Mother&quot; bowl on a northeast aspect at 2100 metres. This avalanche appears to have been started by a cornice fall that released a storm slab that then &quot;stepped down&quot; to deeply buried weak facets. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, numerous skier controlled wind slabs were reported up to size 1.5 at treeline and alpine elevations. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The deep persistent slab problem is a low probability/high consequence scenario that warrants extra caution around large open slopes, especially in shallow snowpack areas. There was a report last Tuesday of a size 3.5 avalanche at Mt Hosmer in the Lizard/Flathead region that released on or stepped down to the deep weak layer near the ground. On Wednesday we had a report from the Lizard range of another size 3.0 deep persistent avalanche on a northeast aspect in the alpine. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches reported Monday. This will likely change as wind driven snow starts to accumulate Wednesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Only one slab avalanche reported: a size 2 on a South aspect in the alpine. Some loose dry sluffs reported from steep gullied terrain. Avalanche activity will increase with forecast snow, wind, and warming temperatures. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, several natural wind slab avalanches were reported up to size 1 above 1300 m. A cornice also failed size 2 and did not pull a slab avalanche from the slope below. Changing wind directions and new storm snow will likely develop new wind slabs at upper elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, no new avalanche activity was reported. On Sunday, numerous natural wind slabs were reported up to size 1.5 which were triggered by the recent wind event. With forecast snow and strong winds reactive wind slabs are likely over the next several days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, two near misses were reported in the Clemina Creek area near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">See MIN report for details.</span></a><span class="s_AA239A9B"> These were both size 2 persistent slab avalanches that released on deep facet layers on north-facing rocky alpine features - highlighting the localized dangerous conditions in that area </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">(see more here)</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, new snow and extreme winds on Tuesday night are expected to promote new wind slab activity on Wednesday at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Many parts of the region have a similar snowpack structure to Clemina Creek, where two size 2 snowmobile triggered persistent slab avalanches were reported on Saturday (see MIN report </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">). On Monday, another size 2 persistent slab avalanche was accidentally triggered by a skier northwest of Valemount. Nobody was injured in the avalanche which was 50cm deep at the crown and about 120m long. Triggering a large deep persistent slab avalanche is a low probability - high consequence scenario that warrants an extra cautious approach to terrain. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, new snow and extreme winds on Tuesday night are expected to promote new wind slab activity at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosive control at treeline and alpine elevations released storm slabs 30 to 60 cm deep on Monday. Loose dry sluffing up to size 1.5 from steep terrain at all elevations was also reported. Slab avalanche size and likelihood is expected to increase with forecast new snow, wind, and warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new was seen today.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Only small sluffing reported. With an incoming storm forecast the potential for slab avalanches (wind slab and storm slabs) will increase.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include natural Size 1 cornice, storm slab, and wind slab releases, as well as two remote triggered Size 1 wind slabs. One storm slab and one cornice were observed releasing naturally to Size 2. These occurrences took place on a range of aspects, but most of them shared unsupported, steeper, alpine terrain as a common feature.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, small avalanches in the new snow were reported including natural and skier triggered size 1 wind slabs on a variety of aspects. Sluffing in steep terrain was widespread. A few size 2 natural avalanches were also reported in alpine terrain, potentially releasing on the mid-February interface 30-40 cm deep. Looking forward, ongoing snowfall and increasing winds are expected to promote new wind slab activity at treeline and in the alpine on Thursday. Increasing caution is also warranted at lower elevations where new snow is building both slab and loose dry avalanche hazards.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Aside from several Size 1 natural loose dry sluffs from steep terrain reported in the north of the region on Tuesday, no new avalanches have been reported.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Some notable persistent slab avalanches were reported last week. This included natural activity on the western slopes of the Purcells (two size 2.5 avalanches on the February 3rd surface hoar and one size 3.5 avalanche on the November crust) and two large skier triggered avalanches near Golden (including a size 3 remotely-triggered avalanche on the mid-January interface). Triggering a persistent slab avalanche is currently a low probability - high consequence scenario that warrants a cautious approach to terrain. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, ongoing light snowfall and increasing winds on Thursday are expected to promote new wind slab activity at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, the region saw widespread natural and explosive controlled avalanche activity up to size 2. These avalanches failed within the recent storm snow mostly from N-NE aspects above 1950 m. Natural Loose dry avalanches up to size 1.5 were also reported from all aspects and elevations. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Several explosive triggered slab avalanches up to size 2.5 were reported on Wednesday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported Tuesday or Wednesday morning. This will likely change as wind driven snow starts to accumulate.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported since Monday, when only one slab avalanche reported: a size 2 on a South aspect in the alpine. Some loose dry sluffs reported from steep gullied terrain. Avalanche activity will increase with forecast snow, wind, and warming temperatures. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, explosive results saw several size 1 slab avalanches which initiated within the recent storm snow. Loose dry sluffing from steeper terrain features were also noted. More snow and strong winds will continue to build reactive storm slab avalanches. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, no new avalanche activity was reported. With forecast snow and strong winds, reactive wind slabs are likely over the next several days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday included several natural cornice failures to Size 2.5. Most of these failed to trigger any underlying slabs, but one Size 2.5 cornice did manage to trigger a slab that then ran to Size 2.5 itself. One other ski cut Size 1 wind slab was reported occurring on a southwest aspect, northeast of Revelstoke.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, two near misses were reported in the Clemina Creek area near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">See the MIN report for details.</span></a><span class="s_AA239A9B"> These were both size 2 persistent slab avalanches that released on deep facet layers on north-facing rocky alpine features - highlighting the localized dangerous conditions in that area </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">(see more here)</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, ongoing snowfall and increasing winds are expected to promote new wind slab activity on Thursday at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Tuesday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many parts of the region have a similar snowpack structure to Clemina Creek, where two size 2 snowmobile triggered persistent slab avalanches were reported on Saturday (see MIN report </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">). On Monday, another size 2 persistent slab avalanche was accidentally triggered by a skier northwest of Valemount. Nobody was injured in the avalanche which was 50cm deep at the crown and about 120m long. Triggering a large deep persistent slab avalanche is a low probability - high consequence scenario that warrants an extra cautious approach to terrain. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">See here for a list of recent near misses in the Cariboos and North Rockies.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, ongoing snowfall and increasing winds on Thursday are expected to promote new wind slab activity at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Explosive control at treeline and alpine elevations released storm slabs 30 to 60 cm deep on Monday. Loose dry sluffing up to size 1.5 from steep terrain at all elevations was also reported on Monday and Tuesday. Slab avalanche size and likelihood is expected to increase with forecast new snow, wind, and warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">One notable avalanche was seen pouring off an alpine face today. Undoubtedly the wind is to blame, whether it was a cornice collapse or loose dry is a mystery. It appeared to pull out the slope below the face. Sz2, Goat Range, East aspect and went into skiable terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Only small sluffing reported. With an incoming storm forecast the potential for slab avalanches (wind slab and storm slabs) will increase.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday include numerous storm slab, wind, slab, and loose dry avalanche observations, with both natural and ski cut triggers. These slides have typically ranged from Size 1-2 with crown fractures generally in the 15-30 cm range. An observation of one of these deeper slides identifies our mid-February interface as the failure plane, with several similar reports coming from the adjacent North Columbias. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, Friday's weather can be expected to produce very touchy avalanche conditions, especially in wind affected areas. Avalanche danger will also increasingly affect lower elevation terrain where loose dry and storm slab avalanche hazards continue to build.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include explosives results in the north of the region from Size 1-1.5 as well as a number of remote and controlled cornice releases that in some cases triggered underlying slabs up to 60 cm deep. One Size 2 natural storm slab was reported releasing from a steep, rocky start zone on a northwest aspect at 2100 metres.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A number of notable persistent slab avalanches were reported last week. This included natural activity on the western slopes of the Purcells (two size 2.5 avalanches on the February 3rd surface hoar and one size 3.5 avalanche on the November crust) and two large skier triggered avalanches near Golden (including a size 3 remotely-triggered avalanche on the mid-January interface). Triggering a persistent slab avalanche is currently a low probability - high consequence scenario that requires a cautious approach to terrain selection, especially as our current weather continues to undermine stability. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, increasing snowfall and winds on Friday are expected to contribute to our existing wind slab problems while also developing more widespread storm slabs that increasingly impact lower elevation terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Numerous explosive results up to size 1.5 were reported from the Lizard Range on Thursday. Loose dry avalanches were also noted from steeper terrain features at treeline and below. On Friday, alpine temperatures are expected to rise to 0 degrees with more forecast snow and wind. This recipe may create an upside down feel to the snowpack (denser slab). I suspect if the weather forecast is accurate we'll see another round of natural slab avalanches. This is also driving the danger ratings to HIGH. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, a size 2.5 deep persistent slab avalanche was reported from the Elkford- North riding. It looked to be 24 hrs old and likely failed earlier in the storm. It did fail within the basal facets and scrubbed down to rocks. Widespread loose dry avalanches were also noted from steep terrain features up to size 1.5. Natural avalanche activity will likely continue with warming temperatures, forecast snow and strong winds. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include several skier and explosives triggered storm slab avalanches up to Size 1.5 and natural soft wind slab avalanche up to Size 2. Of note was one remotely triggered Size 1.5 30cm thick wind slab avalanche from a skier 7m away that ran on facets overlying a crust that formed mid-February.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include several natural avalanched in steep leeward alpine terrain up to Size 2. Avalanche activity will increase with forecast snow, wind, and warming temperatures. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, numerous natural slab and loose dry avalanches up to size 2 were reported from across the region. Natural avalanche activity may start to taper off on Friday but avalanche problems remain primed for human triggering through the forecast period. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, numerous natural storm slabs up to size 1.5 were reported from the western part of the region and no avalanche activity reported from the Telkwa riding locations. Isolated wind slabs may be found in alpine locations on leeward slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include numerous natural and skier and explosives controlled storm and wind slab avalanches up to Size 2. Slab avalanche size and likelihood is expected to increase with forecast new snow, wind, and warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No avalanches observed today.  This will probably change with the forecasted snow and continued winds.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The likelihood and size of slab avalanches will increase with continued snow and wind and warming temperatures. Natural avalanches are likely during periods of heavy loading from snow, wind and rain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Thursday's reports include observations of numerous storm slabs generally running Size 1-1.5. The majority of these were triggered naturally and with ski cutting, although one remotely triggered Size 1.5 was noted. Another notable occurrence was a loose dry avalanche running to Size 2.5 in the Valhallas. All aspects shared fairly equal representation, with natural and remote triggers more focused on north to east aspects.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday included numerous storm slab, wind, slab, and loose dry avalanche observations, with both natural and ski cut triggers. These slides typically ranged from Size 1-2 with crown fractures generally in the 15-30 cm range. An observation of one of these deeper slides identifies our mid-February interface as the failure plane, with several similar reports coming from the adjacent North Columbias. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, the next storm pulse looks to be a bit colder but is still coming in with strong winds. Expect continuing human triggering potential within our storm slabs, especially as new snow and wind continue adding load to the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Thursday's reports include observations of several natural storm slab and wind slab releases ranging from Size 1.5-2.5. One remotely triggered Size 1.5 was also noted. All aspects saw fairly equal representation and crown fractures reached as deep as 50cm, demonstrating the impact of recent wind loading.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A number of notable persistent slab avalanches were reported last week. This included natural activity on the western slopes of the Purcells (two Size 2.5 avalanches on the February 3rd surface hoar and one size 3.5 avalanche on the November crust) and two large skier triggered avalanches near Golden (including a size 3 remotely-triggered avalanche on the mid-January interface). Triggering a persistent slab avalanche is an ongoing low probability - high consequence scenario that requires a cautious approach to terrain selection, especially as ongoing snowfall continues to undermine stability by adding load to the snowpack.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, conditions on Friday night look prime for producing fresh, touchy wind slabs as snowfall rates peak under continuing strong winds.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, numerous natural and explosive triggered slab avalanches up to size 2.5 were reported. These were seen from N-NE aspects above 1600 m. Some of the crowns were up to a metre deep but I suspect the failures were within the recent storm snow. New snow and strong to extreme SW winds friday night are driving the danger ratings to HIGH for Saturday, however; natural avalanche activity will likely start to taper off through the forecast period. Slab avalanches are primed for human triggering. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanche reports for Friday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, a size 2.5 deep persistent slab avalanche was reported from the Elkford- North riding area. It was from approximately 2500 m on a SE aspect. It looked to be 24 hrs old and likely failed earlier in the storm. It did fail within the basal facets (deep persistent slab) and scrubbed down to rocks. Widespread loose dry avalanches were also noted from steep terrain features up to size 1.5. Natural avalanche activity may taper off, however; slab avalanches may be primed for human triggering. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday control work produced numerous storm slab avalanches on all aspects to size 1.5. A MIN report from Thursday http://bit.ly/2lnYiMC indicates significant slab development at and above treeline. Reports from Wednesday include several rider and explosive triggered storm slab avalanches up to size 1.5 and natural soft wind slab avalanches up to size 2. Of note was a remotely triggered size 1.5 windslab. This slab was triggered from 7m away with a 30cm crown, running on facets overlying a crust that formed mid-February.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday skiers triggered wind slabs on both northeast and southeast aspects to size 2, see this great MIN report from Thar Peak Thursday: http://bit.ly/2lFjEQL Reports from Wednesday include several natural avalanches in steep leeward alpine terrain up to Size 2. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, explosive control resulted in slab avalanches up to size 2.5. Conditions remain touchy especially while the recent storm snow settles and stiffens. On Thursday, widespread natural avalanche activity up to size 3 was reported and operations using explosives to mitigate the avalanche risk were able to initiate numerous storm slab avalanches up to size 2.5 from a variety of different start zone elevations and aspects. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">With dryer conditions and cooling temperatures natural activity will likely taper, however; slabs are primed for human triggering. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, several natural wind slab avalanches were observed in the western part of the region on N-NW aspects in the alpine. Extensive sluffing and soft slabs were easily triggered by the weight of a skier, especially at lower elevations where the new snow sits on a firm crust. Reports from the Onion snowmobile area (Babine Mountains) indicated no recent avalanche activity. I suspect there will be little change with avalanche conditions over the weekend, however; isolated wind slabs may still be found in alpine locations on leeward slopes behind terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday control work produced storm slab avalanches to size 1.5 on NE, E and SE facing slopes. Reports from Wednesday include numerous natural, skier and explosive triggered storm/wind slab avalanches up to Size 2. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new activity seen today, however visibility was very limited. Loose dry avalanches were almost certainly happening in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A natural avalanche cycle has likely occurred at upper elevations. Natural avalanche activity may persist through Friday night as strong to extreme winds blow out of the south/southwest. Many slopes, especially those in wind loaded terrain remain very sensitive to human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday include several storm slab releases from Size 1-2.5, with the largest examples triggered naturally. All aspects shared fairly equal representation. Our mid-February interface proved quite reactive, yielding both ski cut and remotely triggered releases to Size 2, mainly at lower elevations where the crust is more prominent.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Thursday's reports were similar, with more numerous storm slabs generally running a bit smaller at Size 1-1.5. The majority of these were triggered naturally and with ski cutting. Again, all aspects shared fairly equal representation, with natural and remote triggers more focused on north to east aspects.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a decline in natural avalanche activity while the potential for human triggering to the depth of our new snow lingers for a few more days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report from avalanche control that tool place in the north of the region on Saturday details a Size 3 wind slab successfully triggered with explosives. The impressive size of this result serves as a good example of the extent of recent wind loading. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday include observations of several storm slab avalanches from Size 1.5-2. Two of these released naturally from steep, south-facing alpine terrain. Ski cutting also yielded a few Size 1 wind slab releases from ridgetop lee terrain at treeline and above.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A number of persistent slab avalanches were reported last week and it should be noted that very real potential currently exists for a storm slab avalanche to 'step down' to one of several deeply buried weak layers. This would likely result in a very large and destructive avalanche.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a decline in natural avalanche activity while the potential for human triggering at the depth of our recent snow persists a few more days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A widespread natural avalanche cycle occurred on Friday night, with many size 2-3 cornice triggered avalanches on north and east aspects. Explosive avalanche control on Saturday produced size 2 storm slabs and ski cutting produced size 1-1.5 avalanches on wind-loaded features. Natural activity is expected to taper off, but storm slabs will remain primed for human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, several size 2 natural storm slabs were reported in alpine terrain and explosive control and ski cutting produced size 1-1.5 avalanches at treeline and in the alpine. On Thursday, a size 2.5 deep persistent slab avalanche was reported from the Elkford-North riding area. It was from approximately 2500 m on a SE aspect. It looked to be 24 hrs old and likely failed earlier in the storm. It failed within the basal facets (deep persistent slab) and scrubbed down to rocks.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Natural activity is expected to taper off, but storm slabs will remain primed for human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were two significant avalanche accidents on the South Coast Saturday. Please recognize that at the time of writing, details are sparse, and in an evolving situation like this some information may prove to be incorrect. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The first incident occurred west of Whistler in the Sea-to-Sky region. Initial details suggest the avalanche occurred on a west-facing feature. Size is estimated to be 2 to 2.5, approximately 80m in width with a 100cm crown. One critical burial was reported. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The second incident occurred in the South Coast region where one person was reported to be fully buried in a feature called the Tony Baker Gully near Cypress Mountain. North Shore SAR has removed the person from the scene with reportedly serious injuries.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">These incidents serve as reminders that dangerous conditions still exist and caution is required when planning and carrying out trips in the region.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday control work produced avalanches to size 2.5 on a variety of aspects with crowns averaging 20 to 40cm in depth. One natural size 2.5 avalanche was reported on a NE facing feature between 1900 and 2450m. Widespread sluffing was also reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were two significant avalanche accidents on the South Coast on Saturday. Please recognize that at the time of writing, details are sparse, and in an evolving situation like this some information may prove to be incorrect. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The first incident occurred west of Whistler in the Sea-to-Sky region. Initial details suggest the avalanche occurred on a west-facing feature. Size is estimated to be 2 to 2.5, approximately 80m in width with a 100cm crown. One critical burial was reported. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The second incident occurred in the South Coast region where one person was reported to be fully buried in a feature called the Tony Baker Gully near Cypress Mountain. North Shore SAR has removed the person from the scene with reportedly serious injuries.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">These incidents serve as reminders that dangerous conditions still exist and caution is required when planning and carrying out trips in the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday natural avalanche activity to size 2.5 was reported from the north of the region on NE facing slopes between 1900 and 2450m. Control work in the north of the region produced similar results. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, storms slabs were very reactive to human triggers producing numerous size 1-1.5 avalanches and widespread whumpfing and cracking in flat terrain. Explosive control resulted in numerous size 2-2.5 slab avalanches. A widespread natural cycle occurred during the peak of the storm with up to size 2.5 slabs on a variety of elevations and aspects. Conditions will remain touchy as the recent storm snow settles and stiffens.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, several size 1-2 natural wind slabs were reported in both the Telkwas and Sinclair areas on north and east aspects. The avalanches likely occurred during the storm on Thursday. A few small size 1 slab and loose dry avalanches running on a crust were skier triggered in steep low elevation terrain. Isolated wind slabs may still be found in alpine locations on leeward slopes behind terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday include several storm slab and wind slab observations from Size 1-2.5. These avalanches were triggered naturally as well as with ski cutting and explosives. All aspects seemed to share fairly equal representation and crown fractures have generally been limited to the depth of our recent storm snow.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday control work produced storm slab avalanches to size 1.5 on NE, E and SE facing slopes. Reports from Wednesday include numerous natural, skier and explosive triggered storm/wind slab avalanches up to Size 2.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, we should see a decline in natural avalanche activity while the potential for human triggering at the full depth of our recent storm snow persists for a few more days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Very limited observations due to poor visibility. We are expecting some loose/dry and slab avalanches associated with these conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were two significant avalanche accidents on the South Coast Saturday. Please recognize that at the time of writing, details are sparse, and in an evolving situation like this some information may prove to be incorrect. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The first incident occurred west of Whistler in the Sea-to-Sky region. Initial details suggest the avalanche occurred on a west-facing feature. Size is estimated to be 2 to 2.5, approximately 80m in width with a 100cm crown. One critical burial was reported. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The second incident occurred in the South Coast region where one person was reported to be fully buried in a feature called the Tony Baker Gully near Cypress Mountain. North Shore SAR has removed the person from the scene with reportedly serious injuries.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">These incidents serve as reminders that dangerous conditions still exist and caution is required when planning and carrying out trips in the region.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Saturday's reports show a continuation and increase from Friday's activity. with numerous storm and wind slab releases generally from Size 1.5-2.5, with a few larger and smaller examples. Natural triggers figured prominently in the reports, but ski cutting and explosives were also employed to mitigate avalanche hazards. All aspects shared fairly equal representation. Our mid-February interface was again noted as a failure plane in several occurrences, yielding both natural and skier triggered releases to Size 2.5. Crown fractures averaged about 30-70 cm, but several were noted at 80-100 cm.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a decline in natural avalanche activity while the potential for human triggering to the full depth of our new snow lingers for a few more days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report from Sunday details a natural cornice release that triggered an underlying slab to Size 2.5. Although it remains uncertain, a deep persistent weak layer is suspected as the failure plane. This occurrence should remind backcountry users that a very real potential currently exists for storm slab avalanches to 'step down' to one of several deeply buried weak layers. This would likely result in a very large and destructive avalanche.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include numerous storm slab and wind slab avalanche observations on all aspects, generally from Size 2-2.5, with a few larger and smaller examples. Natural triggers were well represented and a number of avalanches ran full path. Two notable reports showed avalanches running on the February 15 crust as well as gouging features lower in the slope to ground level. Crown fractures averaged around 40 cm in depth but at least one reached as deep as one metre.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a decline in natural avalanche activity while the potential for human triggering at the full depth of our recent snow persists a few more days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Cornices are large and remain easy to trigger. See </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/6c1b0c97-ec82-47fc-9397-80bc899abed8" target="_blank"><span class="s_B5813F7D">here</span></a><span class="s_3FE45715"> for a great MIN post from Sunday illustrating just how surprising the results can be. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Several size 1.5 to 3 natural and explosives triggered avalanches were reported on Saturday. Aspects were east through northwest, from 1500m to ridgetop.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">A widespread natural avalanche cycle occurred on Friday night, with many size 2-3 cornice triggered avalanches on north and east aspects. Natural activity is expected to taper off, but storm slabs will remain primed for human triggering.</span><span class="s_C9E15120" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, several size 2 natural storm slabs were reported in alpine terrain and explosive control and ski cutting produced size 1-1.5 avalanches at treeline and in the alpine. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a size 2.5 deep persistent slab avalanche was reported from the Elkford-North riding area. It was from approximately 2500 m on a SE aspect. It looked to be 24 hrs old and likely failed earlier in the storm. It failed within the basal facets (deep persistent slab) and scrubbed down to rocks.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity is expected to taper off, but storm slabs will remain primed for human triggering.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday natural avalanches ran to size 2.5 on a variety of aspects with crowns up to 45cm in depth. Control work produced avalanches and cornice failures to size 2.5 on a variety of aspects with crowns averaging 20 to 40cm in depth. Widespread sluffing was also observed. Natural avalanche activity apexed on Friday night featuring avalanches to size 2.5 with crowns up to 80cm in depth.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">There were two significant avalanche accidents on the South Coast Saturday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Sadly, there was an avalanche fatality west of Whistler near Gin Peak/Hanging Lake. This avalanche occurred on a west-facing feature at treeline, size is estimated to be 2 to 2.5, approximately 80m wide with a 100cm crown. At this time it is not clear what interface the avalanche failed on. We're still short on details, but there is a bit more information on our website: http://bit.ly/2m9xtsm as well as the South Coast Touring FB page: http://bit.ly/2m9liMj </span></p><p class="p_CC664AAA"><span class="s_3FE45715">The second incident occurred in the South Coast region where one person was reported to be fully buried in a feature called the Tony Baker Gully near Cypress Mountain. North Shore SAR removed the person from the scene with reportedly serious injuries.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were numerous avalanche involvements throughout the South Coast over the weekend. In the 10k sledding area off the Coquihalla a couple of sleds were buried in what looks to be a size 2 avalanche at treeline, sounds like everyone involved is okay. Photos here: http://bit.ly/2mUUi32</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Sadly, there was an avalanche fatality west of Whistler in the neighboring Sea-to-Sky region. This avalanche occurred on a west-facing feature at treeline, size is estimated to be 2 to 2.5, approximately 80m wide with a 100cm crown. At this time it is not clear what interface the avalanche failed on. We're still short on details, but there is a bit more information on our website: http://bit.ly/2m9xtsm and on the South Coast Touring FB page: http://bit.ly/2m9liMj </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday natural avalanches were reported to size 2.5 from the north of the region on NE facing slopes between 1900 and 2450m. Control work in the north of the region produced similar results. On Friday night a natural cycle released avalanches to size 3.5+ on a variety of aspects off the Coquihalla highway. It's thought that these avalanches were failing on facets above the crust, with the crust allowing debris to run fast and far.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday several storm slabs sized 1.5 to 2.5 (some remote triggered) were reported on north through east aspects, between 1100 and 1400m elevation. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, storm slabs were very reactive to human triggers producing numerous size 1-1.5 avalanches and widespread whumpfing and cracking in flat terrain. Explosive control resulted in numerous size 2-2.5 slab avalanches. A widespread natural cycle occurred during the peak of the storm with up to size 2.5 slabs on a variety of elevations and aspects. Conditions will remain touchy as the recent storm snow settles and stiffens.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, skiers were able to remote-trigger a storm slab (Size 1.5) on a north aspect at 1800m in the northern part of the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, several size 1-2 natural wind slabs were reported in both the Telkwas and Sinclair areas on north and east aspects. The avalanches likely occurred during the storm on Thursday. A few small size 1 slab and loose dry avalanches running on a crust were skier triggered in steep low elevation terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Isolated wind slabs may still be found in alpine locations on leeward slopes behind terrain features.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Saturday's reports show a continuation and slight increase from Friday's extensive avalanche activity, with numerous wind and storm slab releases generally from Size 1.5-3 on all aspects. Natural activity is well represented, although ski cutting and explosives were also employed to mitigate avalanche hazards. Crown fractures averaged about 40-70 cm, but occasionally reached as deep as 100 cm. Many avalanches ran full path. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Last Saturday, two near misses were reported in the Clemina Creek area near Valemount. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/18320018-97f6-461d-b05d-b222d782527e" target="_blank"><span class="s_9255B882">See the MIN report for details.</span></a><span class="s_AA239A9B"> These were both Size 2 persistent slab avalanches that released on deep facet layers on north-facing rocky alpine features - highlighting the localized dangerous conditions in that area </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/near-misses-in-the-north-rockies-cariboos" target="_blank"><span class="s_9255B882">(see more here)</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a decline in natural avalanche activity while the potential for human triggering the full depth of our recent storm snow persists for a few more days. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle occurred on Friday night into Saturday morning, with size 2-3 storm slab avalanches on a variety of aspects and elevations. Some crowns were over a metre thick, but observers suspect the slabs failed within the storm snow and did not step down to any deeper layers. Storm slabs were also reactive to human triggers, producing size 1-1.5 slab avalanches on convex and wind-loaded features at treeline (30-60 cm deep). Natural activity has likely tapered off, but storm slabs will likely remain primed for human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several avalanches have occurred during this last storm up to size 3 and are difficult to notice as they have been covered by new snow.  Avalanche control is planned for Mt. Rundle on March 6, 2017.  Expect road closure from 1-5pm.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There were two significant avalanche accidents on the South Coast Saturday. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Sadly, there was an avalanche fatality west of Whistler near Gin Peak/Hanging Lake. This avalanche occurred on a west-facing feature at treeline, size is estimated to be 2 to 2.5, approximately 80m wide with a 100cm crown. At this time it is not clear what interface the avalanche failed on. We're still short on details, but there is a bit more information on our website: http://bit.ly/2m9xtsm as well as the South Coast Touring FB page: http://bit.ly/2m9liMj</span></p><p class="p_CC664AAA"><span class="s_3FE45715">The second incident occurred in the South Coast region where one person was reported to be fully buried in a feature called the Tony Baker Gully near Cypress Mountain. North Shore SAR removed the person from the scene with reportedly serious injuries.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Previous to this a natural avalanche cycle occurred on March 3rd which mainly involved storm slabs up to 60cm in depth, but a persistent slab running on the mid-February crust was also observed.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday we had reports of storm slab avalanches releasing naturally, with explosives control, and by pushing snow with a snowcat up to size 2.0. There was also a deeper release 250 cm down, suspected to have released on buried facets that resulted in a size 3.0 avalanche in the Selkirk mountains near Trout Lake. On Saturday we had reports of widespread storm slab activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, natural storm slab avalanches were reported up to size 3.0, and explosives control resulted in storm slab avalanches up to size 3.0.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Cornices are large and remain easy to trigger. See </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/6c1b0c97-ec82-47fc-9397-80bc899abed8" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B"> for a great MIN post from Sunday illustrating just how surprising the results can be.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several size 1.5 to 3 natural and explosives triggered avalanches were reported on Saturday. Aspects were east through northwest, from 1500m to ridgetop.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle occurred on Friday night, with many size 2-3 cornice triggered avalanches on north and east aspects. Natural activity is expected to taper off, but storm slabs will remain possible for human triggering.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, several size 2 natural storm slabs were reported in alpine terrain and explosive control and ski cutting produced size 1-1.5 avalanches at treeline and in the alpine.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity is expected to taper off, but storm and wind slabs will remain susceptible to human triggering.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, a natural size 2 avalanche was observed on a southerly aspect in the Duffey area. Whumphing and cracking on open southerly aspects below treeline was also reported on Sunday in the Duffey area. On Saturday, natural avalanches were reported up to size 2.5 from the north of the region on NE facing slopes between 1900 and 2450m. On Friday overnight, a natural cycle released avalanches up to size 4 in the Coquihalla area. These avalanches were failing on facets above a crust, with the crust allowing debris to run fast and far. On Saturday in the Coquihalla, a couple of sleds were buried in what looks to be a size 2 avalanche at treeline. </span><a href="https://www.facebook.com/permalink.php?story_fbid=1819127944779562&amp;id=279029225456116" target="_blank"><span class="s_B5813F7D">Click here for more details.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, strong southwest wind is expected to develop touchy new wind slabs and thicker old wind slabs may also still be reactive. The weak layers from February are still a major concern and persistent slab avalanches remain possible. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. We are entering a low probability, high consequence scenario for very large persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We had reports of two rider-triggered wind slab avalanches (Size 1.5 and 2.0) southwest of Terrace on Sunday. In both cases the crown height was 50cm and shooting cracks were also reported in mellow terrain. There was a remote-triggered Size 1 in the Shames backcountry, also with a 50cm crown, running on a weak facet layer. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday several storm slabs sized 1.5 to 2.5 (some remote triggered) were reported on north through east aspects, between 1100 and 1400m elevation.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Conditions will remain touchy as the recent storm snow settles and stiffens.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, skiers were able to remote-trigger a storm slab (Size 1.5) on a north aspect at 1800m in the northern part of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, several size 1-2 natural wind slabs were reported in both the Telkwas and Sinclair areas on north and east aspects. The avalanches likely occurred during the storm on Thursday. A few small size 1 slab and loose dry avalanches running on a crust were skier triggered in steep low elevation terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Isolated wind slabs may still be found in alpine locations on leeward slopes behind terrain features.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday we had reports of storm slab avalanches releasing naturally and from explosives control up to size 2.5. There was also a report of a remotely triggered avalanche size 1.0 from 50 metres away. On Saturday we had reports of widespread storm slab releases. Storm slabs may continue to be triggered by light additional loads, especially in areas where a buried melt-freeze crust and associated facets exist.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday we had one report of a natural cornice fall size 2.0 and a skier accidentally triggered a size 1.0 avalanche. Storm slab avalanches were widespread on Saturday up to size 2.5. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, a skier triggered a size 2 persistent slab avalanche on a south aspect at 1750 m elevation which failed on the late February sun crust/surface hoar interface down 30-60 cm. A skier also triggered a size 1 wind slab on a north aspect at 2100 m which had an average slab thickness of 35 cm. A widespread natural avalanche cycle occurred on Friday night into Saturday morning, with size 2-3 storm slab avalanches on a variety of aspects and elevations. These avalanches were failing on the late-February interface or on weaknesses within the storm snow. Slabs were typically 40-80 cm thick with some up to 1 m thick. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, large persistent slab avalanches are the biggest concern with the snow from the past week releasing on the late-February weak layer. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Moderate southwest to west alpine wind is expected to develop new wind slabs in immediately leeward terrain features which may be touchy.&nbsp; Old lingering wind slabs may also still be reactive.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several natural and cornice triggered avalanches up to size 3.0 have occurred over the past 72hrs, in some cases running full path. Avalanche control on Mt. Rundle produced good results up to size 2.5. A public report on the Mountain Information Network (MIN) describes a cornice triggered size 3.0 avalanche in the Tryst Lake area with a very wide propagation. This slide may have also sympathetically triggered additional smaller avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, a report includes whumphing and a ski cut triggering a size 2 slab which released on the crust layer. Explosives also triggered numerous storm slabs 20-30 cm thick and one stepped down to the crust layer down 40-60 cm. MIN posts from Sunday include whumphing and small skier triggered avalanches on test slopes. On Saturday, a person was fully buried in the Tony Baker Gully near Cypress Mountain. North Shore SAR removed the person from the scene with serious injuries. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/43b6bc7e-f2e7-4bd8-8d94-093cb7239e69" target="_blank"><span class="s_B5813F7D">Click here for more details.</span></a><span class="s_3FE45715"> A natural avalanche cycle occurred on Friday which included storm slabs up to 60cm in depth failing on the late-February crust layer. At least one avalanche also stepped down to the deeper mid-February crust layer.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, strong southwest wind is expected to develop touchy new wind slabs and thicker old wind slabs may also still be reactive. The weak layers from February are still a major concern and persistent slab avalanches remain possible. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. We are entering a low probability, high consequence scenario for very large persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday and Monday we had reports of natural, skier and snowcat triggered storm and wind slab, and dry loose avalanches up to Size 2. Of note were two very large natural deep persistent slab avalanches in the Selkirk mountains near Trout Lake. One was a 250 cm deep Size 3 on a north aspect on Sunday and the other was a 300 cm deep Size 4 on a southwest aspect on Monday that filled the creek at the bottom of the valley and ran 100m up the other side, both of which released on deeply buried old facets. Subsequent explosives control on Monday produced a Size 3 from the hang fire.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday and Monday, natural storm and wind slab avalanches were reported up to size 3.0, and explosives control resulted in storm slab avalanches up to size 3.0.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the past two days at treeline and alpine, natural storm slab and loose dry avalanches to Size 2 have been reported on south through northeast aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Cornices are large and remain easy to trigger. A great image from Sunday illustrates just how surprising the results can be. </span><a href="https://www.facebook.com/avcansouthrockies/photos/a.1250460645029428.1073741828.1238569916218501/1375147979227360/?type=3" target="_blank"><span class="s_9255B882">Click here for details</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several size 1.5 to 3 natural and explosives triggered avalanches were reported on Saturday. Aspects were east through northwest, from 1500m to ridgetop.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity is expected to taper off, but storm slabs will remain likely for human triggering.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, explosive control and ski cutting produced size 1-1.5 avalanches at treeline and in the alpine. Cornice fall in Waterton Park resulted in a Size 2.5, entraining lots of snow. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity is expected to taper off, but storm and wind slabs will remain susceptible to human triggering.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, two natural size 1 wind slabs were observed on a southwest aspect in cross loaded terrain which were 20 cm thick. A skier triggered a size 1 storm slab on an east aspect at 1800 m. Explosives triggered three size 1.5 storm slabs which were 15-20 cm think. Sluffing from steep terrain features was also observed. On Sunday, a skier triggered a size 1 storm slab on a northeast aspect. The terrain was described as steep and rocky, and the slab was 50 cm thick. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, large persistent slab avalanches remain a serious concern with the snow from the past week releasing on the February weak layers. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Moderate to strong southwest wind Tuesday overnight may develop new wind slabs in immediately leeward terrain features which may be touchy. Old lingering wind slabs and cornices may also still be reactive.</span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, explosives triggered three size 2.5 slab avalanches in the Duffey area which released on late-February sun crust down 40-50 cm. These were on southeast through southwest aspects at 2000-2200 m elevation. Extensive whumphing was also reported in the north of the region. On Sunday, a natural size 2 avalanche was observed on a southerly aspect in the Duffey area. A MIN post from Sunday describes a snowmobile triggered avalanche in the Coquihalla on Sunday. On Saturday, natural avalanches were reported up to size 2.5 from the north of the region and up to size 4 in the Coquihalla area which were failing on facets above a crust. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, large persistent slab avalanches remain a serious concern with the snow from the past week releasing on the February weak layers. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Moderate to strong southwest wind Tuesday overnight may develop new wind slabs in immediately leeward terrain features which may be touchy. Old lingering wind slabs and cornices may also still be reactive.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday two avalanches were simultaneously remote-triggered below treeline west of Terrace. See </span><a href="https://www.facebook.com/groups/314113201944133/permalink/1393891427299633/" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B"> for the excellent details in the Facebook post.&nbsp; Crown heights were 50-80cms.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We had reports of two rider-triggered wind slab avalanches (Size 1.5 and 2.0) southwest of Terrace on Sunday. In both cases the crown height was 50cm and shooting cracks were also reported in mellow terrain. There was a remote-triggered Size 1 in the Shames backcountry, also with a 50cm crown, running on a weak facet layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday several storm slabs sized 1.5 to 2.5 (some remote triggered) were reported on north through east aspects, between 1100 and 1400m elevation.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Conditions will remain touchy as the recent storm snow settles and stiffens. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reported in the past two days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, skiers were able to remote-trigger a storm slab (Size 1.5) on a north aspect at 1800m in the northern part of the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, several size 1-2 natural wind slabs were reported in both the Telkwas and Sinclair areas on north and east aspects. The avalanches likely occurred during the storm on Thursday. A few small size 1 slab and loose dry avalanches running on a crust were skier triggered in steep low elevation terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Isolated wind slabs may still be found in alpine locations on leeward slopes behind terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Sunday and Monday include several natural and skier triggered storm and wind slab avalanches up to size 2.5, including one skier triggered Size 2 that tragically resulted in a fatality on Monday. One Size 2 on Monday was remotely triggered by a skier 10 m away and failed on facets buried mid-February. There was also a report of a remotely triggered avalanche size 1.0 from 50 metres away on Sunday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Monday include several natural avalanches up to Size 1.5 out of extreme terrain after brief sun-exposure, and one natural Size 2.5 on a northeast aspect. On Sunday we had one report of a natural cornice fall size 2.0 and a skier accidentally triggered a size 1.0 avalanche. Storm slab avalanches were widespread on Saturday up to size 2.5. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, four human triggered storm slab avalanches size 1-2 were reported. These were typically 25-35 cm thick slabs and all occurred above 2000 m elevation. Explosives produced numerous storm slab avalanches up to size 2. Skier triggered loose sluffing was also reported from steep terrain features. On Sunday, a skier triggered a size 2 persistent slab avalanche on a south aspect at 1750 m elevation which failed on the late February sun crust/surface hoar interface down 30-60 cm. A skier also triggered a size 1 wind slab on a north aspect at 2100 m which had an average slab thickness of 35 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, large persistent slab avalanches remain a serious concern with the snow from the past week releasing on the late-February weak layer. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Strong southwest wind and new snow Tuesday overnight is expected to develop new wind slabs in immediately leeward terrain features which may be touchy. Old lingering wind slabs may also still be reactive.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A natural avalanche cycle continues with slides up to size 3.0 occurring in steep Alpine and Treeline terrain on lee and cross-loaded features. A public report on the Mountain Information Network (MIN) describes a cornice triggered size 3.0 avalanche in the Tryst Lake area with a very wide propagation on Sunday. This slide may have also sympathetically triggered additional smaller avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, a report includes whumphing and a ski cut triggering a size 2 slab which released on the crust layer. Explosives also triggered numerous storm slabs 20-30 cm thick and one stepped down to the crust layer down 40-60 cm. MIN posts from Sunday include whumphing and small skier triggered avalanches on test slopes. On Saturday, a person was fully buried in the Tony Baker Gully near Cypress Mountain. North Shore SAR removed the person from the scene with serious injuries. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/43b6bc7e-f2e7-4bd8-8d94-093cb7239e69" target="_blank"><span class="s_B5813F7D">Click here for more details.</span></a><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, storm slabs are expected to be touchy after the region saw heavy snowfall on Tuesday. Slabs will be particularly reactive in wind loaded terrain. Large persistent slab avalanches remain a serious concern with the snow from the past week releasing on the February weak layers. It may still be possible for a person to directly trigger a persistent slab or a storm slab avalanche could step down. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include numerous natural dry loose avalanches and one storm slab up to Size 2 within the recent storm snow. Skiers also triggered a couple Size 1 soft slabs in steep alpine terrain and a few cornices also fell off. On Sunday and Monday we had reports of natural, skier and snowcat triggered storm and wind slab, and dry loose avalanches up to Size 2. Of note were two very large natural deep persistent slab avalanches in the Selkirk mountains near Trout Lake. One was a 250 cm deep Size 3 on a north aspect on Sunday and the other was a 300 cm deep Size 4 on a southwest aspect on Monday that filled the creek at the bottom of the valley and ran 100m up the other side, both of which released on deeply buried old facets. Subsequent explosives control on Monday produced a Size 3 from the hang fire.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include one natural Size 2.5 on a southeast facing alpine slope in response to intense cross-loading as well as numerous other natural dry loose and soft slab avalanches up to Size 1 on lee aspects. Explosives control produced wind slab and persistent slab avalanches up to Size 3. One of which was 100-300cm deep, failing on the deep persistent facet/crust weakness buried in November.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">In the past two days at treeline and alpine, natural storm slab and loose dry avalanches to Size 2 have been reported on south through northeast aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Cornices are large and remain easy to trigger. A great image from Sunday illustrates just how surprising the results can be. </span><a href="https://www.facebook.com/avcansouthrockies/photos/a.1250460645029428.1073741828.1238569916218501/1375147979227360/?type=3" target="_blank"><span class="s_9255B882">Click here for details</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity is expected to taper off on Thursday, but storm slabs are expected to remain sensitive to human triggering. Looking forward, natural storm slab activity is expected to ramp-up again in response to new snow and wind on Thursday night and Friday</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, explosive control and ski cutting produced size 1-1.5 avalanches at treeline and in the alpine. A cornice fall in Waterton Park resulted in a Size 2.5, entraining lots of snow. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Natural activity is expected to taper off, but storm and wind slabs will remain susceptible to human triggering.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, skiers and explosives were triggering size 1 wind slabs which were up to 30 cm thick. Natural sluffing from steep terrain features was also observed. On Monday, two natural size 1 wind slabs were observed on a southwest aspect in cross loaded terrain which were 20 cm thick. A skier triggered a size 1 storm slab on an east aspect at 1800 m and explosives triggered three size 1.5 storm slabs which were 15-20 cm think. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, large persistent slab avalanches remain a concern for the accumulated snow from the past week releasing on the February weak layers. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Recent strong southwest wind has created new wind slabs in immediately leeward terrain features which are expected to remain touchy on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday morning, solar trigger sluffing was reported in the Coquihalla. In the north of the region, the top 10-20 cm was reported to be sluffing easily in steep terrain. On Monday, explosives triggered three size 2.5 slab avalanches in the Duffey area which released on late-February sun crust down 40-50 cm. These were on southeast through southwest aspects at 2000-2200 m elevation. Extensive whumphing was also reported in the north of the region on Monday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, large persistent slab avalanches remain a concern for the accumulated snow from the past week releasing on the February weak layers. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Recent strong southwest wind has created new wind slabs in immediately leeward terrain features which are expected to remain touchy on Thursday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday two avalanches were simultaneously remotey-triggered below treeline west of Terrace. See </span><a href="https://www.facebook.com/groups/314113201944133/permalink/1393891427299633/" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B"> for the excellent details in the Facebook post. These avalanches speak to the touchy persistent avalanche problem in the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">We had reports of two rider-triggered wind slab avalanches (Size 1.5 and 2.0) southwest of Terrace on Sunday. In both cases the crown height was 50cm and shooting cracks were also reported in mellow terrain. There was a remote-triggered Size 1 in the Shames backcountry, also with a 50cm crown, running on a weak facet layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Conditions will remain touchy as the recent storm snow settles into a cohesive slab over top of the late February persistent weak layer. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported in the past few days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday include a few natural loose dry avalanches up to Size 1.5 in extreme steep gully features, as well as evidence of recent natural persistent slab avalanches up to Size 3 and 100 cm deep. A skier also remotely triggered a Size 1 storm slab avalanche that failed on a thin crust down 60 cm. Reports from Sunday and Monday include several natural and skier triggered storm and wind slab avalanches up to size 2.5, including one skier triggered Size 2 that tragically resulted in a fatality on Monday. One Size 2 on Monday was remotely triggered by a skier 10 m away and failed on facets buried mid-February. There was also a report of a remotely triggered avalanche size 1.0 from 50 metres away on Sunday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Tuesday. Reports from Monday include several natural avalanches up to Size 1.5 out of extreme terrain after brief sun-exposure, and one natural Size 2.5 on a northeast aspect. On Sunday we had one report of a natural cornice fall size 2.0 and a skier accidentally triggered a size 1.0 avalanche. Storm slab avalanches were widespread on Saturday up to size 2.5. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a natural size 1.5 storm slab was observed on a north aspect at 1950 m elevation which was 30 cm thick. Ski cutting triggered a size 1 storm slab on a north aspect at 2050 m which was 15 cm thick. A skier remotely triggered a size 2.5 slab avalanche from 5 m away on a north aspect at 2125 m which failed on the late-February surface hoar down 60 cm. On Monday, skiers and explosives triggered numerous storm slab avalanches up to size 2. Over the weekend, a natural size 3.5 deep persistent slab avalanche occurred in an alpine bowl in the Bonnington range on west and northwest aspects at 2300 m elevation. The crown line was 200+ cm thick and it was described as a climax event.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, recently formed wind slabs are expected to remain touchy. Large persistent slab avalanches remain a concern with the snow from the past week releasing on the late-February weak layer. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A natural avalanche cycle continues with slides up to size 3.0 occurring in steep Alpine and Treeline terrain on SE, E, NE and N aspects. Some avalanches are running full path. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, explosives triggered two size 1 storm slabs which released down 10-25 cm.&nbsp; These were described as having minimal propagation and minimal entrainment.&nbsp; On Monday, a report includes whumphing and a ski cut triggering a size 2 slab which released on the crust layer.&nbsp; Explosives also triggered numerous storm slabs 20-30 cm thick and one stepped down to the crust layer down 40-60 cm.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday,&nbsp; recently formed storm slabs may still be reactive to human triggering, especially in wind loaded terrain. Large persistent slab avalanches have generally become unlikely but still may be possible in isolated areas. Natural sluffing is possible from steep sun exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Tuesday and Wednesday include numerous natural dry loose avalanches up to Size 2.5 in steep terrain. A few natural wind slab avalanches up to Size 2.5 were also reported, one triggered by a cornice fall. Skier and explosives control also produced 15-60cm thick storm and wind slab avalanches up to Size 1.5. On Sunday and Monday we had reports of two very large natural deep persistent slab avalanches in the Selkirk mountains near Trout Lake. One was a 250 cm deep Size 3 on a north aspect on Sunday and the other was a 300 cm deep Size 4 on a southwest aspect on Monday that filled the creek at the bottom of the valley and ran 100m up the other side, both of which released on deeply buried old facets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday include a 100 cm deep natural Size 3.5 slab avalanche on a SW aspect and a large cornice failure that entrained quite a bit of mass. Explosives control produce wind slab avalanches up to Size 2.5 on north through east aspects. Reports from Tuesday include one natural Size 2.5 on a southeast facing alpine slope in response to intense cross-loading as well as numerous other natural dry loose and soft slab avalanches up to Size 1 on lee aspects. Explosives control produced wind slab and persistent slab avalanches up to Size 3. One of which was 100-300cm deep, failing on the deep persistent facet/crust weakness buried in November.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Over the past few days, natural and human-triggered storm slab and loose dry avalanches to size 2 were reported on a variety of aspects. Cornices are large and remain easy to trigger. A great image from Sunday illustrates just how surprising the results can be. </span><a href="https://www.facebook.com/avcansouthrockies/photos/a.1250460645029428.1073741828.1238569916218501/1375147979227360/?type=3" target="_blank"><span class="s_9255B882">Click here for details</span></a><span class="s_AA239A9B">. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A size 3.5 deep persistent slab avalanche also occurred on a northeast facing alpine slope on Mt Hosmer. The avalanche, which likely occurred on Wednesday, is thought to have been cornice-triggered and ran a distance of about 900m. This event highlights the isolated, yet destructive, nature of the deep persistent avalanche problem which should become more prevalent as we head into spring.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, natural storm slab activity is expected to ramp-up again in response to new snow and wind on Thursday night and Friday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, our Avalanche Canada Field Team observed evidence of a few naturally triggered size 2 slab avalanches in the Crossing Creek area. While one of the avalanches appeared to have failed within the recent storm snow, one avalanche was about 1m deep and is thought to have been triggered on the December facet layer near the base of the snowpack. This event highlights the isolated yet potentially destructive nature of the deep persistent avalanche problem which should become more prevalent as we head into spring.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, natural wind slab and storm slab activity is expected to ramp-up again in response to new snow and wind on Thursday night and Friday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday included further observations of reactive wind slabs in immediate lee terrain occasionally releasing to Size 1 under skier traffic and with ski cutting.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday revealed widespread natural avalanche activity, with Size 1-2.5 releases noted throughout the region. North aspects were most active. Ski cutting and explosives control in the Whistler area yielded numerous results with crown fractures ranging from 20-40 cm deep. Loose snow sluffing from steep terrain was noted on both days. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward to Friday, expect a return to natural storm slab activity and increased human triggering potential. Also, while the bond at mid-February interface remains questionable, the likelihood of large persistent slab avalanches will also increase as forecast snowfall and wind add load to the snowpack.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday include observations of several 24-36 hour old natural storm and wind slab avalanches that had released from Size 1.5-2.5 on southeast to southwest aspects at treeline and above in the north of the region. Crown fractures averaged 40-70 cm but reached as deep as 120 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday morning, solar trigger sluffing was reported in the Coquihalla. In the north of the region, the top 10-20 cm was reported to be sluffing easily in steep terrain. On Monday, explosives triggered three size 2.5 slab avalanches in the Duffey area which released on late-February sun crust down 40-50 cm. These were on southeast through southwest aspects at 2000-2200 m elevation. Extensive whumphing was also reported in the north of the region on Monday.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, large persistent slab avalanches remain a concern for the accumulated snow from the past week releasing on the February weak layers. It may still be possible for a person to directly trigger a persistent slab or a smaller avalanche could step down. Recent strong southwest winds have also created new wind slabs in immediately leeward terrain features which are expected to remain reactive on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday two avalanches were simultaneously remotey-triggered below treeline west of Terrace. See </span><a href="https://www.facebook.com/groups/314113201944133/permalink/1393891427299633/" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B"> for the excellent details in the Facebook post. We had reports of two rider-triggered wind slab avalanches (Size 1.5 and 2.0) southwest of Terrace on Sunday. In both cases the crown height was 50cm and shooting cracks were also reported in mellow terrain. There was a remote-triggered Size 1 in the Shames backcountry, also with a 50cm crown, running on a weak facet layer.  These avalanches speak to the touchy persistent avalanche problem in the region.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Strong winds on Thursday should promote a new round of wind slab activity. The persistent slab problem is expected to remain touchy as the recent storm snow settles into a cohesive slab over top of the late February persistent weak layer. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A size 2 natural wind slab was observed in the southwest corner of the region on Wednesday failing on a north facing slope at about 1600m. Wind slab activity will likely increase on Friday in response to strong southeast winds redistributing loose surface snow. Surface wind slabs will have the potential to step down to deeper, more destructive layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday include several 40-100cm deep natural storm, wind and persistent slab avalanches up to Size 2.5. Skiers also triggered a few storm and wind slab avalanches up to Size 1.5 and several loose dry avalanches up to Size 1.5 in extreme steep gully features were also reported.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include observations recent 40-70cm deep natural storms slab avalanches up to Size 2.5, and a 40cm deep skier triggered Size 1.5 persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include observations of numerous explosives control results generating storm slab releases from Size 1.5-2. These occurred on a range of aspects at treeline and above and featured crown fractures averaging around 20 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a natural Size 1.5 storm slab was observed on a north aspect at 1950 m. A skier also remotely triggered a Size 2.5 slab avalanche from 5 m away on a north aspect at 2125 m, failing on the late-February surface hoar down 60 cm. An older report from the weekend remains notable for detailing a natural Size 3.5 deep persistent slab avalanche occurring in an alpine bowl in the Bonnington range on west and northwest aspects at 2300 m elevation. The crown line was 200+ cm thick and it was described as a climax event.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, expect fresh, touchy storm slabs in the mountains on Friday and keep in mind the touchy wind slabs that existed beneath them just the day before. Large persistent slab avalanches remain a concern and it may be possible for a person to directly trigger a persistent slab, or a smaller avalanche could step down. This will increase in likelihood as forecast snowfall and wind add load to the snowpack.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, explosives triggered two size 1 storm slabs which released down 10-25 cm. These were described as having minimal propagation and minimal entrainment. On Monday, a report includes whumphing and a ski cut triggering a size 2 slab which released on the crust layer. Explosives also triggered numerous storm slabs 20-30 cm thick and one stepped down to the crust layer down 40-60 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, recently formed storm slabs may still be reactive to human triggering, especially in wind loaded terrain. Large persistent slab avalanches have generally become unlikely but still may be possible in isolated areas. Natural sluffing is possible from steep sun exposed slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include a few skier-triggered 10-40cm thick Size 1 storm slabs and loose dry sluffs, as well as two 50cm thick explosives-triggered Size 2's. A cornice also collapse naturally, but didn't trigger a slab on the slope below. Early reports from Friday morning suggested that a natural avalanche cycle was underway in response to lheavy loading from snow and wind.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday and Monday we had reports of two very large natural deep persistent slab avalanches in the Selkirk mountains near Trout Lake. One was a 250 cm deep Size 3 on a north aspect on Sunday and the other was a 300 cm deep Size 4 on a southwest aspect on Monday that filled the creek at the bottom of the valley and ran 100m up the other side, both of which released on deeply buried old facets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include two 50-150cm thick Size 2-2.5 skier remote triggered deep persistent slab avalanches, failing on facets and depth hoar above the November crust with impressive propagation across alpine wind loaded feature. Subsequent explosives control produced another 40-200cm thick Size 2.5 deep persistent slab avalanche with 5m deep deposit. Elsewhere, skiers remotely triggered a 50cm thick Size 3 wind slab avalanche and extensive explosives control produced slab avalanches up to Size 3 with large full depth full path avalanches in thin snowpack areas.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A natural storm slab avalanche cycle occurred on Friday, mostly in the size 2-2.5 range. Storm snow was also reactive to skiers, producing several size 1-2 avalanches on a variety of terrain. Cornices are large and remain easy to trigger. A great image from Sunday illustrates just how surprising the results can be. </span><a href="https://www.facebook.com/avcansouthrockies/photos/a.1250460645029428.1073741828.1238569916218501/1375147979227360/?type=3" target="_blank"><span class="s_9255B882">Click here for details</span></a><span class="s_AA239A9B">. A size 3.5 deep persistent slab avalanche likely occurred on Wednesday a northeast facing alpine slope on Mt Hosmer. It's thought to have been cornice-triggered and ran a distance of about 900m. This event highlights the isolated, yet destructive, nature of the deep persistent avalanche problem which should become more prevalent as we head into spring.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs will remain primed for human triggering on the weekend, while the warming trend will increase the likelihood of cornice failures and deep slab releases.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday include several size 2 natural storm slabs in steep northerly terrain and numerous ski cut storm slabs in the size 1-1.5 range (and one size 2 skier triggered avalanches). Storm slabs will likely remain reactive to human triggers over the weekend.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, explosive avalanche control along the White River (in the northwest corner of the region) produced over 10 deep persistent slab avalanches releasing on basal facets. Most of the avalanches were size 3, included several than ran full path to valley bottom taking mature forest and blocking the river with up to 8 m of debris. An older size 2 natural avalanche failing on basal facets was also reported in the Crossing Creek area. Looking ahead, dramatic warming will likely wake up the deep persistent slab problem and create the potential for very large avalanches. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday included further observations of reactive wind slabs in immediate lee terrain occasionally releasing to Size 1 under skier traffic and with ski cutting.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Wednesday revealed widespread natural avalanche activity, with Size 1-2.5 releases noted throughout the region. North aspects were most active. Ski cutting and explosives control in the Whistler area yielded numerous results with crown fractures ranging from 20-40 cm deep. Loose snow sluffing from steep terrain was noted on both days. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward to Saturday, expect recently formed storm slabs to remain reactive and for stability to deteriorate over the day with increasing snowfall, winds, and rising temperatures. While the bond at mid-February interface remains questionable, the likelihood of large persistent slab avalanches will also increase as forecast snowfall and wind add load to the snowpack.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday included one explosives triggered Size 3 avalanche in the Duffey Lake area that began as a shallow surface slab before stepping down to one of our February weak layers. A social media report from the same area details a remotely triggered Size 2 storm slab on a southeast aspect near treeline. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">A recent MIN report from the Temple Valley area describes a Size 3 avalanche which occurred on Wednesday and was apparently cornice triggered. Further reports from Wednesday include observations of several 24-36 hour old natural storm and wind slab avalanches that had released from Size 1.5-2.5 on southeast to southwest aspects at treeline and above in the north of the region. Crown fractures averaged 40-70 cm but reached as deep as 120 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recent persistent slab avalanche activity support ongoing concern for large avalanches releasing on our February weak layers. While natural avalanches on these layers may become unlikely, evidence suggests a lingering possibility for a rider to directly trigger a persistent slab or for a smaller avalanche to 'step down'. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a few size 1-1.5 slabs were skier-triggered in alpine terrain on the weak interface buried 40-80 cm deep. These avalanches speak to an ongoing concern about the touchy persistent avalanche problem in the region. Fast-moving sluffs were also reported in steep terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">New snow and moderate winds on Saturday should promote another round of wind slab activity. The persistent slab problem is expected to remain touchy as the snow settles into a cohesive slab.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported in the southern part of the region on Thursday. A few size 2.5 natural wind slabs were reported around Ningunsaw.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wind slab activity will likely increase over the weekend with new snow and strong winds. Warming temperatures next week will likely stress deep persistent slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday include three separate skier-triggered 50-100cm deep Size 2 slab avalanches, two of which failed on the mid-February persistent weakness, and the third started as a 25cm storm slab but stepped-down to a sun crust 80cm deep. Other reports include a large cornice chunk that failed and triggered a 80cm thick persistent slab on the late February weakness, as well as a few other cornice falls that didn't trigger slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include a cornice collapse that triggered a Size 3 slab avalanche directly below in steep, rocky unsupported terrain. Reports from Wednesday include observations recent 40-70cm deep natural storms slab avalanches up to Size 2.5, and a 40cm deep skier triggered Size 1.5 persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday highlight loose snow releases to Size 1 from steep terrain as well as more isolated Size 1 wind slabs reactive to ski cutting. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday include observations of numerous explosives control results generating storm slab releases from Size 1.5-2. These occurred on a range of aspects at treeline and above and featured crown fractures averaging around 20 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a skier remotely triggered a Size 2.5 slab avalanche from 5 m away on a north aspect at 2125 m, failing on the late-February surface hoar down 60 cm. An older report from the weekend remains notable for detailing a natural Size 3.5 deep persistent slab avalanche occurring in an alpine bowl in the Bonnington range on west and northwest aspects at 2300 m elevation. The crown line was 200+ cm thick and it was described as a climax event.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, expect recently formed storm and wind slabs to remain reactive on Saturday and for stability to deteriorate with forecast wind and new snow. Also keep in mind that large persistent slab avalanches remain an ongoing concern and it may be possible for a person to directly trigger a persistent slab, or for a smaller avalanche to step down.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The new snow over the past 24hrs is sluffing easily in steeper terrain and a few new sz 2 natural avalanches from steep alpine terrain were observed.  There was also a noteable sz 3.5 avalanche on Mt Murray with a  fracture line over 700m wide, a max depth of 2m and ran over 800m to the valley floor reaching mature timber. This is a good red flag about paths that have not yet released. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported, but it should be noted that stormy weather has been discouraging backcountry travel and obscuring visibility into alpine terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, explosives triggered two size 1 storm slabs which released down 10-25 cm. These were described as having minimal propagation and minimal entrainment.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a drastic change in avalanche hazards as you transition between elevation bands. Loose wet avalanche hazards will dominate where rain and wet snow accumulate, while thick, reactive storm slabs can be expected at higher elevations. This increases the need for awareness of overhead hazards. To complicate matters, large persistent slab avalanches may still be possible in isolated areas, and this potential increases while precipitation (especially rain) loads the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread wind and storm slab avalanche cycle to Size 2.5 was reported on Friday at all elevations and aspects, particularly in the alpine. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include two 50-150cm thick Size 2-2.5 skier remote triggered deep persistent slab avalanches, failing on facets and depth hoar above the November crust with impressive propagation across an alpine wind loaded feature. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a0146f44-2a4c-40c8-8d8b-1ea3eb93c81b" target="_blank"><span class="s_9255B882">See here for this informative MIN post.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">Subsequent explosives control produced another 40-200cm thick Size 2.5 deep persistent slab avalanche with 5m deep deposit. Elsewhere, skiers remotely triggered a 50cm thick Size 3 wind slab avalanche and extensive explosives control produced slab avalanches up to Size 3 with large full depth full path avalanches in thin snowpack areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A storm cycle occurred on Friday, producing numerous natural size 2-3 avalanches (including some triggered by cornice falls) and several size 1-2 skier-triggered avalanches. Activity tapered off on Saturday, but explosive control produced numerous size 2-2.5 avalanches. Earlier in the week, a size 3.5 avalanche on Mt. Hosmer was a sign the deep persistent slab problem may persist.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">New snow will form fresh storm slabs on Sunday, while warming and loading may stress cornices and deeper weaknesses.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, several loose wet avalanches were reported from steep solar aspects and a size 2 wind slab was reported on a windloaded ridge crest. On Thursday, explosive avalanche control along the White River (in the northwest corner of the region) produced over 10 deep persistent slab avalanches releasing on basal facets. Most of the avalanches were size 3, included several than ran full path to valley bottom taking out mature forest and blocking the river with up to 8 m of debris. An older size 2 natural avalanche failing on basal facets was also reported in the Crossing Creek area.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">New snow will form fresh storm slabs on Sunday, while warming and loading may stress deeper weaknesses and create the potential for large destructive avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday include extensive results of explosives control in the Whistler area, with numerous storm slabs, cornices, and wind slabs releasing from Size 1.5-2. Another highly notable report from southwest of Whistler details a remotely triggered Size 1.5 persistent slab. This avalanche released from a northeast aspect, had a crown fracture depth of about a metre, and should highlight ongoing concern for lingering weakness at our mid-February layer.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward to Sunday, expect recently formed storm slabs to remain reactive to human triggers. While the bond at mid-February interface remains questionable, the possibility of large persistent slab avalanches also remains a concern.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday showed several wind slabs failing naturally and with remote triggers from Size 1-2.5 in the north of the region. The largest of these initiated on a southeast aspect at 2100 metres, is suspected to have failed on the late February weak layer, and featured a crown fracture depth of 80-120 cm.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday included one explosives triggered Size 3 avalanche in the Duffey Lake area that began as a shallow surface slab before stepping down to one of our February weak layers. A social media report from the same area details a remotely triggered Size 2 storm slab on a southeast aspect near treeline. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recent persistent slab avalanche activity supports ongoing concern for large avalanches releasing on our February weak layers, especially in the north of the region. While natural avalanches on these layers may become unlikely, evidence suggests a lingering possibility for a rider to directly trigger a persistent slab or for a smaller avalanche to 'step down'. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, wind-loading triggered a size 3 persistent slab avalanche on the February facets on southwest slope. Several cornice and ice falls were reported to entrain loose snow, but did not trigger any slabs. One remotely skier triggered avalanche was reported on a small convexity from 50 m away.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The incoming storm has all the ingredients for widespread storm slabs. On top of that, it will also trigger large persistent slab avalanches on buried weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Friday. A few size 2.5 natural wind slabs were reported around Ningunsaw on Thursday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect fresh wind slabs to form during the storm on Sunday and lingering wind slabs on reverse loaded slopes.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday and Saturday several storm slabs and persistent slabs to Size 3 were reported on all elevations and aspects, especially in the alpine. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday a Size 1.5 storm slab was remote-triggered on a north aspect near treeline. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1 avalanches were reported Friday on steep solar (south) aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday morning, skiers were able to trigger a Size 1.5 storm slab (with good propagation) in a cross loaded slope near a shallow rocky area. Aspect was north/northeast. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/fcc3545f-95e2-4d42-8268-1feedd0b8925" target="_blank"><span class="s_9255B882">See here for their great MIN report.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday include numerous observations of storm slab avalanches from Size 1-2 throughout the region. Many of these were explosives controlled, but a number of the larger (Size 1.5-2) examples were naturally triggered. All but south aspects saw recent activity. Another notable report details a persistent slab that released with a very large vehicle controlled cornice trigger. The failure plane is uncertain but the slide ran full path, Size 3, on a north aspect. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Other relatively recent persistent slab avalanches include a remotely triggered a Size 2.5 slab that failed on the late-February surface hoar down 60 cm on Tuesday as well as an older report from the weekend that details a natural Size 3.5 deep persistent slab avalanche occurring in an alpine bowl in the Bonnington range. Its crown fracture was 200+ cm thick and the avalanche was described as a climax event.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, expect recently formed storm and wind slabs to remain reactive on Sunday. Also keep in mind that large persistent slab avalanches are an ongoing concern and it may be possible for a person to directly trigger a persistent slab, or for a smaller avalanche to step down.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing from the last 24hrs. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported, but it should be noted that stormy weather has been discouraging some backcountry travel and obscuring visibility into alpine terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a change in avalanche hazards as you transition to higher elevations. Thick, reactive storm slabs can be expected at higher elevations, which increases the need for awareness of overhead hazards. Large persistent slab avalanches may also remain sensitive to human triggering or to smaller avalanches in isolated areas of the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday we had reports of a widespread natural avalanche cycle up to Size 3 on all aspects and elevations at treeline and in the alpine. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday afternoon a rider-triggered Size 2.5 persistent slab avalanche was reported near Golden. Average slab depth was 50cm on a steep north facing aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several storm and persistent slab avalanches to Size 3 were also reported on Sunday - most activity was above 2300m on a variety of aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include two 50-150cm thick Size 2-2.5 skier remote triggered deep persistent slab avalanches, failing on facets and depth hoar above the November crust with impressive propagation across an alpine wind loaded feature. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a0146f44-2a4c-40c8-8d8b-1ea3eb93c81b" target="_blank"><span class="s_9255B882">See here for this informative MIN post.</span></a><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Another storm cycle occurred on Sunday with several natural size 2 avalanches and numerous size 1.5-2 explosive triggered avalanches. Ski cutting produced several size 1.5-2 avalanches on wind loaded terrain features. Last Wednesday, a size 3.5 avalanche on Mt. Hosmer was a sign the deep persistent slab problem may still persist.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">With several days of warm weather ahead, storm slabs will likely stay reactive to human triggers and the potential for large cornice falls and deep persistent slab avalanches will remain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large cornice triggered slabs were reported in the southeast part of the region (up to size 2.5) and ski cutting produced a few size 1 storm slabs in the latest storm snow. On Thursday, explosive avalanche control along the White River (in the northwest corner of the region) produced over 10 deep persistent slab avalanches releasing on basal facets. Most of the avalanches were size 3, including several than ran full path to valley bottom taking out mature forest and blocking the river with up to 8 m of debris.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">With several days of warm weather ahead, storm slabs will likely stay reactive to human triggers and the potential for large deep persistent slab avalanches will remain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday included observations of a natural avalanche cycle taking place in the afternoon and producing storm slab avalanches to Size 2 south of Callaghan Valley. Explosives control and ski cutting in the Whistler area yielded Size 1 storm slabs and cornice results to Size 2.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday include extensive results of explosives control in the Whistler area, with numerous storm slabs, cornices, and wind slabs releasing from Size 1.5-2. Another highly notable report from southwest of Whistler details a remotely triggered Size 1.5 persistent slab. This avalanche released from a northeast aspect, had a crown fracture depth of about a metre, and should highlight ongoing concern for lingering weakness at our mid-February layer.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward to Monday, expect deteriorating stability over the day as another round of overnight snowfall and wind continues into Monday afternoon. Also, while the bond at mid-February interface remains questionable, the possibility of large persistent slab avalanches remains a concern, especially as snow and wind load the snowpack.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday include one observation of a Size 1 persistent slab releasing with a ski cut on an east aspect over the mid February weak layer in the Hurley area. Several more Size 1 slabs were reported releasing on northerly aspects in the north of the region under a range of triggers, including natural and remote.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday showed several wind slabs failing naturally and with remote triggers from Size 1-2.5 in the north of the region. The largest of these initiated on a southeast aspect at 2100 metres, is suspected to have failed on the late February weak layer, and featured a crown fracture depth of 80-120 cm.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday included one explosives triggered Size 3 avalanche in the Duffey Lake area that began as a shallow surface slab before stepping down to one of our February weak layers. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recent persistent slab avalanche activity supports ongoing concern for large avalanches releasing on our February weak layers, especially in the north of the region. While natural avalanches on these layers may become unlikely, evidence suggests the possibility for a rider to directly trigger a persistent slab or for a smaller avalanche to 'step down'. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Saturday. On Friday, a size 3 persistent slab avalanche was triggered on southwest slope by wind-loading on the February facets. There was also a report of a remotely skier-triggered avalanche on a small convexity, another sign persistent weak layers are primed for triggering.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The current storm has all the ingredients for large widespread storm slabs. On top of that, it will also trigger very large persistent slab avalanches on buried weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Friday describes a size 1 wind slab avalanche at Hudson Bay Mountain </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/704efda0-d74f-422e-b515-cc59b2883c02" target="_blank"><span class="s_9255B882">(here)</span></a><span class="s_AA239A9B">. A natural size 2 wind slab was also reported on a northeast aspect in the Howsons.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, the new snow is expected to form reactive storm slabs and has the potential to awake persistent slabs above the weak February interface.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large avalanches (up to Size 4) were reported with artillery control in Glacier National Park, some running full path to valley floor. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, several storm slabs to Size 2.5 were reported, mostly on north / northwest aspects in the alpine and at treeline. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new reported yesterday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several Size 1 avalanches were reported Friday on steep solar (south) aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday morning, skiers were able to trigger a Size 1.5 storm slab (with good propagation) in a cross loaded slope near a shallow rocky area. Aspect was north/northeast. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/fcc3545f-95e2-4d42-8268-1feedd0b8925" target="_blank"><span class="s_9255B882">See here for their great MIN report.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday include numerous observations of storm slab avalanches from Size 1-2 throughout the region. Many of these were explosives controlled, but a number of the larger (Size 1.5-2) examples were naturally triggered. All but south aspects saw recent activity. Another notable report details a persistent slab that released with a very large vehicle controlled cornice trigger. The failure plane is uncertain but the slide ran full path, Size 3, on a north aspect. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Two other large (Size 2.5-3.5) persistent slab avalanches were reported earlier last week.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, expect another light snowfall coupled with moderate to strong winds and warm temperatures to maintain touchy conditions on Monday. Keep in mind that large persistent slab avalanches are an ongoing concern and it may be possible for a person to directly trigger a persistent slab, or for a smaller avalanche to step down.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A sz 3 avalanche was observed on Tent bowl here on Sunday.  The avalanche was 240m wide with an average depth of 1m and up to 2m in places failing on the ground. It ran down into mature timber and logged a large amount of new trees.  This took out a commonly skied area.  There were also 3 Cornice collapses observed on Mt Rundle all resulting in sz 2-2.5 Avalanches that were running to mid path. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported, but it should be noted that stormy weather has been discouraging some backcountry travel and obscuring visibility into alpine terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, expect a change in avalanche hazards as you transition to higher elevations. Thick, reactive storm slabs can be expected at higher elevations, which increases the need for awareness of overhead hazards. Heavy rain will increase danger from loose wet avalanches at lower elevations. Large persistent slab avalanches may also remain sensitive to human triggering or to smaller avalanches in isolated areas of the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday a widespread natural avalanche cycle to Size 2.5 was reported on a range of elevations and aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large avalanches (up to Size 4) were reported with artillery control in Glacier National Park, some running full path to valley floor.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday several small natural storm slab avalanches were reported near Revelstoke below treeline. Use extra caution for the time being in what is normally a 'safer' elevation band. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a762d664-1b12-42e1-9142-66bb5cdb852d" target="_blank"><span class="s_9255B882">See here for the excellent and informative MIN post.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday afternoon a rider-triggered Size 2.5 persistent slab avalanche was reported near Golden. Average slab depth was 50cm on a steep north facing aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several storm and persistent slab avalanches to Size 3 were also reported on Sunday - most activity was above 2300m on a variety of aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include two 50-150cm thick Size 2-2.5 skier remote triggered deep persistent slab avalanches, failing on facets and depth hoar above the November crust with impressive propagation across an alpine wind loaded feature. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a0146f44-2a4c-40c8-8d8b-1ea3eb93c81b" target="_blank"><span class="s_9255B882">See here for this informative MIN post.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Natural storm slabs in the size 1.5-2.5 range have been reported in steep alpine terrain on a daily basis with the ongoing snowfall. Explosive cornice control on Sunday triggered numerous storm slabs and two deeper slabs that potentially failed on the February interface about 1 metre deep. Ski cutting produced several size 1.5-2 avalanches on wind loaded terrain features. Last Wednesday, a size 3.5 avalanche on Mt. Hosmer was a sign the deep persistent slab problem still exists as well.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect a wide range of avalanche problems during the next few days of warm weather. Expect fresh storm and wind slabs at higher elevations, touchy cornices at ridgetops, unstable wet snow at lower elevations, and the possibility of large persistent slab avalanches on the February interface and basal facets.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large cornice triggered slabs were reported in the southeast part of the region (up to size 2.5) and ski cutting produced a few size 1 slabs in the latest storm snow. On Thursday, explosive avalanche control along the White River (in the northwest corner of the region) produced over 10 deep persistent slab avalanches releasing on basal facets. Most of the avalanches were size 3, including several than ran full path to valley bottom taking out mature forest and blocking the river with up to 8 m of debris. While these avalanches were triggered with explosives, warm temperatures or solar radiation can have a similar impact on deep weak layers.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Expect a range of avalanche problems during the next few days of warm weather. Touchy wind slabs will form at higher elevations, unstable wet snow may exist at lower elevations, and the possibility of large persistent slab avalanches will remain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Sunday include two explosives triggered Size 2 storm slabs. One of these featured a 60 cm crown fracture and is suspected to have stepped down to a deeper weak layer, quite possibly our mid-February interface.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday included observations of a natural avalanche cycle taking place in the afternoon and producing storm slab avalanches to Size 2 south of Callaghan Valley. Explosives control and ski cutting in the Whistler area yielded Size 1 storm slabs and cornice results to Size 2.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">A notable report from Friday detailed a remotely triggered Size 1.5 persistent slab south of the Callaghan. This avalanche released from a northeast aspect, had a crown fracture depth of about a metre, and highlights ongoing concern for weakness existing at our mid-February layer.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward to Tuesday, expect deteriorating stability over the day as another round of snowfall and wind continues building fresh storm slabs into Tuesday afternoon. Also, while the bond at mid-February interface remains questionable, the possibility of large persistent slab avalanches remains a concern, especially as snow and wind load the snowpack.</span></p><p class="p_CC664AAA"><span class="s_3FE45715"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Sunday include two Size 1 cornice releases in the north of the region which failed both naturally and with skier traffic. Warm temperatures and strong winds were noted causing rapid cornice growth.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday include one observation of a Size 1 persistent slab releasing with a ski cut on an east aspect over the mid-February weak layer in the Hurley area. Several more Size 1 slabs were reported releasing on northerly aspects in the north of the region under a range of triggers, including natural and remote.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday and Saturday included observations of two natural and explosives triggered Size 2.5-3 releases that were both suspected to have failed on our February weak layers. One of these featured a crown fracture depth of 80-120 cm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recent persistent slab avalanche activity supports ongoing concern for large avalanches releasing on our February weak layers, especially in the north of the region and with rain in the forecast. A very real potential exists for a rider to directly trigger a persistent slab or for a smaller avalanche or cornice release to 'step down' on Tuesday. This is especially relevant given recent cornice activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A large natural avalanche cycle likely occurred during the peak of the storm on Sunday night. A few reports of small skier triggered slabs were reported in the early stages of the storm on Sunday, but poor visibility has limited field observations. Persistent slab avalanches on the February interface were reported on a daily basis prior to the storm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The current storm has all the ingredients for large widespread storm slabs. On top of that, it will also trigger very large persistent slab avalanches on buried weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Small avalanches have been reported in wind affected terrain the past few days, including a few naturals up to size 2 and a few size 1-1.5 skier-triggered avalanches. A MIN report from Friday describes a size 1 wind slab avalanche at Hudson Bay Mountain </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/704efda0-d74f-422e-b515-cc59b2883c02" target="_blank"><span class="s_9255B882">(here)</span></a><span class="s_AA239A9B">.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The storm snow is expected to form reactive slabs and has the potential to form a persistent slab above the weak February interface.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday a widespread natural avalanche cycle to Size 2.5 was reported on a range of elevations and aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large avalanches (up to Size 4) were reported with artillery control in Glacier National Park, some running full path to valley floor.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday several small natural storm slab avalanches were reported near Revelstoke below treeline. </span><span class="s_1681A555">Use extra caution for the time being in what is normally a 'safer' elevation band. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a762d664-1b12-42e1-9142-66bb5cdb852d" target="_blank"><span class="s_69909980">See here for the excellent and informative MIN post.</span></a><span class="s_1681A555"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle to Size 2.5 was reported below treeline on Monday afternoon as temperatures warmed up. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday morning, skiers were able to trigger a Size 1.5 storm slab (with good propagation) in a cross loaded slope near a shallow rocky area. Aspect was north/northeast. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/fcc3545f-95e2-4d42-8268-1feedd0b8925" target="_blank"><span class="s_9255B882">See here for their great MIN report.</span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Sunday include numerous observations of explosives control results, with storm slabs releasing from Size 1-2.5 across the region. One natural Size 2 was reported south of Nelson. All aspects saw activity and crown fractures were generally 20-30 cm deep.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday include numerous observations of storm slab avalanches from Size 1-2 throughout the region. Many of these were explosives controlled, but a number of the larger (Size 1.5-2) examples occurred naturally. Another notable report details a persistent slab that released with a vehicle controlled cornice trigger. The failure plane is uncertain but the slide ran full path, Size 3. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Two other large (Size 2.5-3.5) persistent slab avalanches were reported earlier last week.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, expect another moderate snowfall coupled with moderate to strong winds and warm temperatures to maintain touchy conditions on Tuesday. Rain is likely to promote both slab and loose wet avalanche activity at lower elevations. Keep in mind that large persistent slab avalanches remain an ongoing concern and that it may be possible for a person to directly trigger a persistent slab, or for a smaller avalanche to step down.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A few naturally triggered size 2 avalanches were observed today in the Alpine on S, E and N aspects. Some of these were cornice triggered. Over the weekend a couple of very large avalanches occurred (up to size 3.5) which ran full-path and also destroyed areas of mature timber. These larger slides have been stepping down to the basal weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported, but it should be noted that the warm, stormy weather has been discouraging some backcountry travel and obscuring visibility into alpine terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, the primary hazard will exist where new snow is accumulating instead of rain. This will become increasingly relevant as you reach upper treeline elevations or if you are exposed to alpine slopes overhead. As rain continues to fall, ongoing potential also exists for loose wet avalanche activity, especially on steeper slopes. Ongoing rain and snow at higher elevations will also maintain the risk of large avalanches releasing over the late February interface. Large, open terrain features and avalanche paths should be avoided while this potential exists.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday and Tuesday a widespread storm slab natural avalanche cycle to Size 2.5 was reported on a range of elevations and aspects. Wet slabs and loose wet avalanches were also reported below treeline. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large avalanches (up to Size 4) were reported with artillery control in Glacier National Park, some running full path to valley floor.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday several small natural storm slab avalanches were reported near Revelstoke below treeline. Use extra caution for the time being in what is normally a 'safer' elevation band. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a762d664-1b12-42e1-9142-66bb5cdb852d" target="_blank"><span class="s_9255B882">See here for the excellent and informative MIN post.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday natural storm slabs to Size 2 were reported above 2400m on south and east aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday afternoon a rider-triggered Size 2.5 persistent slab avalanche was reported near Golden. Average slab depth was 50cm on a steep north facing aspect near 2300m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Several storm and persistent slab avalanches to Size 3 were also reported on Sunday - most activity was above 2300m on a variety of aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Natural avalanches up to size 2.0 were reported on Tuesday. Observations were limited by poor visibility and travel conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs are expected to continue to develop in the alpine above the high freezing levels. At lower elevations, snow may be moist or wet and release easily in pockets of loose wet snow. The possibility of deep persistent avalanches continues during this period of warm and stormy weather.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, natural storm slab avalanches up to size 1.5 were observed west of Bralone. In the Whistler area, explosives were triggering storm slabs up to size 2 and a skier triggered a size 1.5 storm slab on a north aspect at 2100 m elevation. Most of this storm slab activity had slab thickness of 20-30 cm but one was 80 cm thick in a wind loaded pocket. A natural cornice release was also reported on a northeast aspect at 2300 m. On Sunday, two explosives triggered size 2 storm slab avalanches were reported. One of these featured a 60 cm crown fracture and is suspected to have stepped down to a deeper weak layer, quite possibly the mid-February interface.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, stability is generally expected to improve as temperatures drop. However, if the sun comes out, it can quickly destabilize the snowpack on sun exposed slopes. In the high alpine, the recent storm snow is expected to remain touchy, especially in wind loaded terrain. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, numerous loose wet avalanches up to size 2 were observed in the Coquihalla area. In the north of the region, three natural size 1.5-3 cornice releases were observed on north and northeast aspects. Also in the north, a skier triggered a size 1 storm slab in a loaded alpine feature and a skier triggered a size 1 persistent slab on an east aspect at 1800 m which released down 40 cm on the late February surface hoar layer. On Sunday, two size 1 cornice releases were observed in the north of the region, one failed naturally and the other was skier triggered. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, stability is generally expected to improve as temperatures drop. However, if the sun comes out, it can quickly destabilize the snowpack on sun exposed slopes. In the high alpine, the recent storm snow is expected to remain touchy, especially in wind loaded terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several wet slab avalanches size 2.5 were reported on Tuesday from the Bear Pass area. I suspect that a natural avalanches cycle is ongoing today. Reports may be limited by poor visibility and travel conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Numerous natural avalanches up to size 2.5 were reported from the west of the region in the Howson's.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday a widespread storm slab natural avalanche cycle to Size 2.5 was reported on a range of elevations and aspects. Wet slabs and loose wet avalanches were also reported below treeline. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, several large avalanches (up to Size 4) were reported with artillery control in Glacier National Park, some running full path to valley floor.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday several small natural storm slab avalanches were reported near Revelstoke below treeline. Use extra caution for the time being in what is normally a 'safer' elevation band. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/a762d664-1b12-42e1-9142-66bb5cdb852d" target="_blank"><span class="s_9255B882">See here for the excellent and informative MIN post.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle to Size 2.5 was reported below treeline on Monday afternoon as temperatures warmed up.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wet slabs to Size 2 were also reported on east aspects below treeeline. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday skiers in the north of the region were able to trigger a Size 1.5 storm slab, sliding on a wind-pressed layer below. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/38142787-ea7f-43eb-adb9-633803fd0eb3" target="_blank"><span class="s_9255B882">See here for their MIN report.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report on Tuesday suggests widespread natural avalanche activity north of Nelson. A natural size 2.5 persistent slab avalanche was also observed on an east and southeast aspect slope at 2200 m in the area south of Nelson. On Monday, natural size 1 avalanches were observed and isolated to the most recent storm. Ski cutting produced numerous size 1-1.5 storm slabs and explosives triggered two size 2 storm slabs. These storm slabs were typically 10-30 cm thick. A remotely triggered wind slab was also reported and triggered from 5 m away. On Sunday, explosives triggered numerous size 1-2.5 storm slab avalanches which were 20-30 cm thick. One natural size 2 storm slab avalanche was reported south of Nelson. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, wet slabs and loose wet avalanches are possible at lower elevations where rain is saturating the upper snowpack. At the highest elevations, storm slabs will be very touchy, especially in wind loaded terrain. The warm conditions and rain are expected to wake up any lingering weaknesses within the snowpack and persistent slab avalanches are a serious concern. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed in our region but the visibility was poor.  Our neighbours in Banff Park have reported a large avalanche cycle going into the weak basal layer.  The forecasters suspect that we will see some large avalanches with the warming and strong solar radiation. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported, but it should be noted that the warm, stormy weather has been discouraging backcountry travel and obscuring visibility into alpine terrain so observations have been very limited.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, stability is generally expected to improve as temperatures drop. However, if the sun comes out, it can quickly destabilize the snowpack on sun exposed slopes. In the high alpine above the rain line, any recent storm snow is expected to remain touchy, especially in wind loaded terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The past 3 days have seen a widespread natural avalanches to Size 3 at all elevations and on all aspects. Many of these triggered in the storm snow with some also stepping down to persistent weaknesses deeper in the snowpack. Wet slabs and loose wet avalanches have also been reported below treeline.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">It is expected that there was a widespread natural avalanche cycle on Wednesday. On Monday natural storm slabs to Size 2 were reported above 2400m on south and east aspects. On Sunday afternoon a rider-triggered Size 2.5 persistent slab avalanche was reported near Golden. Average slab depth was 50cm on a steep north facing aspect near 2300m. Additionally, several storm and persistent slab avalanches to Size 3 were also reported on Sunday - most activity was above 2300m on a variety of aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread natural avalanches were reported up to size 3.0. Most of these were reported to be loose wet avalanches gouging and entraining mass as they travelled down the path. This avalanche cycle is likely to continue overnight,</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs are expected to continue to develop in the alpine above the high freezing levels. At lower elevations, snow may be moist or wet and release easily in pockets of loose wet snow. The possibility of deep persistent avalanches continues during this period of warm and stormy weather. No new reports of avalanches. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, two natural size 1.5 wet slabs were observed on a north aspect at 1150 m in the Whistler area. Natural and skier triggered loose wet avalanches were also reported. On Monday, natural storm slab avalanches up to size 1.5 were observed west of Bralone. In the Whistler area, explosives were triggering storm slabs up to size 2 and a skier triggered a size 1.5 storm slab on a north aspect at 2100 m elevation. Most of this storm slab activity had slab thickness of 20-30 cm but one was 80 cm thick in a wind loaded pocket. A natural cornice release was also reported on a northeast aspect at 2300 m. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, the new snow will bury the widespread surface crust and is expected to form new wind slabs in exposed terrain. It has become difficult to trigger the mid-February crust/facet layer but there is still a chance that smaller wind slab avalanches or cornices could still step down and release a persistent slab avalanche. At lower elevation, rain may result in wet sluffing from steep terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Observations were limited on Tuesday but reports from the north of the region include isolated natural wet avalanches and ski cutting triggering size 1 loose wet avalanches. On Monday, numerous loose wet avalanches up to size 2 were observed in the Coquihalla area. In the north of the region on Monday, three natural size 1.5-3 cornice releases were observed on north and northeast aspects. Also in the north, a skier triggered a size 1 storm slab in a loaded alpine feature and a skier triggered a size 1 persistent slab on an east aspect at 1800 m which released down 40 cm on the late February surface hoar layer.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, the new snow should be burying a widespread crust and is expected to form new wind slabs in exposed terrain. It has become difficult to trigger the February weak layers but there is still a chance that smaller wind slab avalanches or a cornice fall could still step down and release a persistent slab avalanche. At lower elevation, continued rain may result in wet sluffing from steep terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread natural avalanche cycle reported on Tuesday. Natural wet slab avalanches up to size 2.5 and loose wet avalanches up to size 1.5. Reports have been limited due to poor visibility and travel conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Numerous natural avalanches up to size 2.5 were reported from the west of the region in the Howson's on Tuesday. Natural avalanches up to size 2.0 were reported from the Hankin area on Monday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past 3 days have seen a widespread natural avalanche activity to Size 3.5 at all elevations and on all aspects. Many of these triggered in the storm snow with some also stepping down to persistent weaknesses deeper in the snowpack. Wet slabs and loose wet avalanches have also been reported below treeline. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">It is expected that there was a widespread natural avalanche cycle over the past 3 days in the areas south of Valemount with warm temperatures and rain up to 2000m. Warming temperatures on Monday afternoon destabilized the snowpack, resulting in a widespread natural avalanche cycle below treeline. A widespread natural avalanche cycle to Size 2.5 was reported below treeline on Monday afternoon.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An early report from Wednesday includes a natural size 3 cornice triggered avalanche and a natural size 3 wet slab avalanche at 2200-2400 m elevation. On Tuesday, natural avalanche activity was reported in many parts of the region. Most of this activity was wet slabs up to size 3 and loose wet avalanches up to size 2 in response to the high elevation rain. A natural size 2.5 persistent slab avalanche was also observed on an east and southeast aspect slope at 2200 m in the area south of Nelson which failed on a layer down 50 cm. Ski cutting on Tuesday morning triggered several storm slab up to size 1.5 and explosives triggered numerous wet slab avalanches up to size 2.5 in the afternoon. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, if the sun comes out in full force, it will further destabilize an already warm snowpack. Natural loose wet and wet slab avalanches remain possible on steep sun exposed slopes. Large persistent slab avalanches also remain a serious concern until the snowpack has time to recover from the recent rain and warming. In the high alpine, recent storm snow will remain touchy and may fail naturally with solar triggers. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread natural avalanche cycle up to size 3.0 is occurring on all aspects at all elevations with many slides reaching the end of their run-outs. Many avalanches are stepping down to the basal weak layers with fractures as deep as 2 metres.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported recently but observations have been very limited during the warm storm. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, the new snow will bury the widespread surface crust and is expected to form new wind slabs in exposed terrain. At lower elevations, rain may result in wet sluffing from steep terrain features.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">The past 2 days have seen a widespread natural avalanches to Size 4 at all elevations and on all aspects. Many of these triggered in the storm snow with some also stepping down to persistent weaknesses deeper in the snowpack and running full path. Wet slabs and loose wet avalanches have also been reported below treeline.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past few days warm and wet weather have seen a natural avalanche cycle to size 2.5 from a variety of aspects and elevations. In the coming days expect the likelihood of triggering an avalanche to remain elevated.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday showed widespread natural avalanches up to Size 3.0. Most of these were reported to be loose wet avalanches gouging and entraining mass as they travelled down the path. This avalanche cycle may persist as temperatures climb again on Friday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Wind slabs are expected to continue to develop in the alpine above the high freezing levels. At lower elevations, snow may be moist or wet and release easily in pockets of loose wet snow. The possibility of deep persistent avalanches continues during this period of warm and stormy weather. There have been no new reports of avalanches in the region. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, evidence of a recent widespread natural avalanche cycle was reported, including numerous size 2-3 storm slabs and cornice failures. A few avalanches likely stepped down to deeper weak layers including the mid-February crust. Initial reports of explosive avalanche control on Thursday include up to size 2 cornice releases and several size 1.5 storm slabs. Ski cutting also produced smaller size 1 slabs. These avalanches failed at the interface between the new snow and rain crust and were up to 50 cm deep on wind loaded features.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">With more snow and wind in the forecast, expect fresh storms slabs to be reactive to human triggers on Friday. It has become difficult to trigger the mid-February crust/facet layer but there is still a chance that small storm slab avalanches or cornices could step down and release a persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Wednesday, evidence of a recent widespread natural avalanche cycle was reported in the northern part of the region. The avalanches included several size 2-3 storm slabs, a number of which stepped down to weak layers over a metre deep. Large cornice failures were also reported. One small skier triggered avalanche was reported on a north-facing wind loaded feature at 1950 m. There are no recent reports from the southern part of the region.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, the most recent snow is expected to form new wind slabs in exposed terrain that may bond poorly to a buried rain crust. It has become difficult to trigger the February weak layers but there is still a chance that a smaller wind slab avalanche or a cornice fall could still step down and release a persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Wednesday's reports include further observations of the widespread natural avalanche cycle that occurred on Tuesday. Natural wet slab avalanches ran up to size 2.5 and loose wet avalanches ran up to size 1.5. Below treeline elevations were especially active in the north of the region. Reports have been limited due to poor visibility and travel conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A report from the north of the region details a remotely triggered Size 2 storm slab releasing on a northeast aspect at 1400 metres on Wednesday. The slab depth was 50 cm. Numerous natural avalanches up to size 2.5 were reported from the west of the region in the Howsons on Tuesday. Natural avalanches up to size 2.0 were reported from the Hankin area on Monday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past 2 days have seen a widespread natural avalanche activity up to Size 4 at all elevations and on all aspects. Many of these triggered in the storm snow with some also stepping down to persistent weaknesses deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline. There was one report of size 4.5 avalanche in the central Selkirk range running during an intense snowfall and wind event very early Thursday morning. This was reported as a full depth avalanche running full path.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There was a widespread natural avalanche cycle to size 3 on all aspects and elevations over the past 2 days in the areas south of Valemount. Although the natural avalanche cycle will have diminished, expect the recent storm slab to continue to be reactive at upper elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday confirmed an ongoing natural cycle of wet slab and loose wet avalanches up to size 3. Much of the activity was between 2000 and 2400 m on a variety of aspects. One large avalanche was triggered by a cornice fall on a north aspect. Explosive control also produced numerous size 2-3 wet avalanches.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, storm slabs will remain reactive at higher elevations, particularly if the sun comes out in the morning. Large persistent slab avalanches also remain a serious concern until the snowpack has time to recover from the recent rain and warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Several new (past 12hour) storm snow avalanches were noted today. They were widespread at treeline and alpine and were up to sz3. Yesterday's action was also impressive with many large avalanches starting in the alpine and running full path. Every avalanche involved the deeper, basal layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches have been reported recently but observations have been very limited during the warm storm. On Friday, the most recent snow is expected to form new wind slabs in exposed terrain that may bond poorly to a buried rain crust.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">The past 3 days have seen widespread natural avalanche activity at all elevations and on all aspects, including a Size 4.5 in the central Selkirk range (crown height up to 3.5 m high, running 1200 vertical metres and leaving debris up to 28 metres deep) and a Size 3.5 near the Valhallas on a southeast aspect near 2400m.</span></p><p class="p_CC664AAA"><span class="s_1681A555">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past few days warm and wet weather have seen a natural avalanche cycle to size 3.5 from a variety of aspects and elevations. With the storm on Saturday expect the likelihood of triggering an avalanche to remain elevated.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday show a continuation of the recent avalanche cycle, with storm slabs releasing naturally to Size 2 and explosives controlled deep persistent slabs to Size 3. North to northeast aspects have been the most active. Most crown fractures have measured about one metre but one impressive storm slab featured a three metre fracture depth.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday showed widespread natural avalanches up to Size 3.0. Most of these were reported to be loose wet avalanches gouging and entraining mass as they travelled down the path. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The heightened avalanche activity shown by the above reports should be expected to persist on Saturday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A report from the Crowsnest area showed a natural Size 3.5 deep persistent slab that began as a ridgetop wind slab release before stepping down to ground as it descended its track. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, another dose of wind and snow will see wind slabs continue to develop in the alpine above the high freezing levels while rain soaks the snowpack again at lower elevations. The potential for deep persistent avalanches is very real concern for Saturday.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, explosive avalanche control produced numerous size 1.5 storm slabs (15-30 cm deep) included several triggered by cornice falls. </span><span class="s_3FE45715">New snow will form touchy storm slabs on Saturday, especially at higher elevations where winds will form deeper deposits. These slabs may be poorly bonded to the underlying rain crust. </span><span class="s_3FE45715">It has become difficult to trigger the mid-February crust/facet layer, but there is still a chance that small storm slab avalanches or cornices could step down and release a persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, a few size 1 skier triggered avalanches (20 cm deep) were reported in exposed terrain in the northern part of the region. A MIN report from the Duffey area had a size 1.5 avalanche remotely triggered on a south aspect at 1900 m </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e32caeb7-8f92-4b43-ac96-f6f56ab41eed" target="_blank"><span class="s_B5813F7D">(see here for details)</span></a><span class="s_3FE45715">, indicating the new snow was poorly bonded to the rain crust. More natural cornice falls were reported on north alpine ridges.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">New snow will form touchy storm slabs on Saturday, especially at higher elevations where winds will form deeper deposits. These slabs may be poorly bonded to the underlying rain crust. It has become difficult to trigger the February weak layers, but there is still a chance that a smaller avalanche or a cornice fall could still step down and release a persistent slab avalanche.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include several observations from the north of the region, where skier traffic triggered a Size 2.5 wind slab as well as a Size 2 persistent slab over the late February interface down 50 cm. The large wind slab release was triggered from a thin spot and had a crown fracture that ranged from 30-100 cm. This should draw attention to the significant effect of recent winds as well as the touchy nature of the thinner edges of large wind slabs. The bulk of the reported activity took place on north to northwest aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Wednesday's reports included further observations of the widespread natural avalanche cycle that occurred on Tuesday. Natural wet slab avalanches ran up to size 2.5 and loose wet avalanches ran up to size 1.5. Below treeline elevations were especially active in the north of the region. Reports from the south of the region have been limited due to poor visibility and travel conditions.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches have been reported, but a report from the north of the region detailed a remotely triggered Size 2 storm slab releasing on a northeast aspect at 1400 metres on Wednesday. The slab depth was 50 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Numerous natural avalanches up to size 2.5 were reported from the west of the region in the Howsons on Tuesday. Natural avalanches up to size 2.0 were reported from the Hankin area on Monday. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past 3 days have seen widespread natural avalanche activity at all elevations and on all aspects, including a Size 4.5 in the central Selkirk range (crown height up to 3.5 m high, running 1200 vertical metres and leaving debris up to 28 metres deep). </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">There was a widespread natural avalanche cycle to size 3 on all aspects and elevations from Wednesday's storm in the areas south of Valemount. Although the natural avalanche cycle will have diminished, expect the recent storm slab to continue to be reactive at upper elevations, especially with more loading on Saturday. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday a Size 2.5 natural slab avalanche on a west aspect took out trees. The sun came out in force and cornices were failing. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/f00fcd0d-375f-440c-86c2-0127d5532247" target="_blank"><span class="s_9255B882">See here for this great MIN report.</span></a><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports continue to come in about a widespread natural avalanche cycle that occurred during last week's rain event. Avalanches were reported on all aspects and elevations, many up to size 3 and over 100 cm deep. A few large cornice failures occurred as well. Several avalanches in the Bonningtons were reported to step down to the late-February interface, and similar step downs likely occurred in other areas as well. Avalanches at lower elevations entrained significant amounts of wet snow. Activity tapered off on Thursday, but the snowpack has not yet had to time to adjust to the heavy loading and warming.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, heavy precipitation and warming will result in another round of large natural avalanches with the potential to step down to deep weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Nothing new was seen today, however clear skies offered a view of the extent of the last cycle. Alpine &amp; treeline elevations had numerous avalanches on all aspects. All of them involved the deep layers. In terms of size, 2.5 to 3.5 avalanches were common. Crowns were up to 1.5m deep with very wide propagations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, two large size 2.5-3 avalanches were reported north of Grouse Mountain in a MIN post. </span><a href="https://vimeo.com/208778463" target="_blank"><span class="s_B5813F7D">(See video here.)</span></a><span class="s_3FE45715"> The debris was several days old and likely occurred during the heavy rain event earlier this week. Observations throughout the week were limited, but similar natural activity likely occurred throughout the region.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, expect fresh storm slabs that will be thicker and more reactive at higher elevations and in exposed terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">The past several days have seen widespread natural avalanche activity at all elevations and on all aspects, including a Size 4.5 in the central Selkirk range reported Thursday (crown height up to 3.5 m high, running 1200 vertical metres and leaving debris up to 28 metres deep) and a Size 3.5 near the Valhallas on a southeast aspect near 2400m.</span></p><p class="p_CC664AAA"><span class="s_1681A555">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday morning a Size 2 storm slab (crown height 15-20cm) was remote-triggered on a bootpack path in the backcountry near Golden. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The past few days warm and wet weather have seen a natural avalanche cycle to size 3.5 from a variety of aspects and elevations. In the wake of the storm on Saturday expect the likelihood of triggering an avalanche to remain elevated.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday show a continuation of the recent and ongoing avalanche cycle, with several observations showing explosives triggered persistent slabs (and one storm slab) running from Size 2.5-3. Crown fractures generally ranged from 100-200 cm. On Thursday, storm slabs were observed releasing naturally to Size 2, with explosives control yielding deep persistent slabs to Size 3. Most crown fractures measured about one metre but one impressive storm slab featured a three metre fracture depth. North to northeast aspects were the main performers over both days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday showed widespread natural avalanches up to Size 3.0. Most of these were reported to be loose wet avalanches gouging and entraining mass as they travelled down the path. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, recently formed storm slabs in the alpine will likely be reactive to human triggering on Sunday. The heightened avalanche activity shown by the above reports should gradually decrease as cooling temperatures begin to penetrate the snowpack.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">A report from Friday in the Crowsnest area showed a natural Size 3.5 deep persistent slab that began as a ridgetop wind slab release before stepping down to ground as it descended its track. Another explosives triggered Size 3.5 deep persistent slab was reported north of Sparwood. The resulting debris pile appears to be roughly 10 metres high.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recently formed wind slabs at high alpine elevations will likely be reactive to human triggering on Sunday. The emergence of the sun will promote both natural avalanche activity and human triggering potential. Although cooling temperatures should gradually reduce the likelihood of persistent slab avalanches at lower elevations over the coming days, the scale of recent persistent slab activity warrants being very cautious with that assumption.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, explosive control and ski cutting produced numerous small storm slabs (size 1-1.5) and two size 2 storm slabs up to 50 cm deep. Most failed within the storm snow, but a few on the mid-March rain crust.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, storm slabs may remain reactive in human triggers and the deeper mid-February weak layer continues to present a low probability / high consequence scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, a large cornice fall missed a group of skiers on a north aspect in the Duffey area (see MIN report for details). The previous day another skier remotely triggered a size 1.5 avalanche on a nearby south aspect at treeline. On Saturday, explosive control produced a few size 2-2.5 storm slabs and a few natural storm slabs were reported in the northern part of the region.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, storm slabs may remain reactive in human triggers. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.</span><span class="s_3FE45715" /></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday include several observations from the north of the region, where skier traffic triggered a Size 2.5 wind slab as well as a Size 2 persistent slab over the late February interface down 50 cm. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The large wind slab release was triggered from a thin spot and had a crown fracture that ranged from 30-100 cm. This should draw attention to the significant effect of recent winds as well as the touchy nature of the thin edges of large wind slabs. The bulk of recently reported activity took place on north to northwest aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A report from Saturday detailed a snowmobile triggered Size 2.5 wind slab in the Telkwa area. The March 14 crust mentioned in our snowpack discussion was identified as the failure plane. The close call should draw attention to both the extent of recent wind transport as well as the touchy nature of thinner edges of wind slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A report from Friday describes numerous natural wind slab releases to Size 1.5 out of steep terrain in the Howson range. A report from Wednesday in the north of the region detailed a remotely triggered Size 2 storm slab releasing on a northeast aspect at 1400 metres. The slab depth was 50 cm.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past several days have seen widespread natural avalanche activity at all elevations and on all aspects, including a Size 4.5 in the central Selkirk range reported Thursday (crown height up to 3.5 m high, running 1200 vertical metres and leaving debris up to 28 metres deep).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday skiers triggered a Size 1.5 wind slab quite low down on a slope - strong winds had transported snow farther than expected. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday a Size 2.5 natural slab avalanche on a west aspect took out trees. The sun came out in force and cornices were failing. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/f00fcd0d-375f-440c-86c2-0127d5532247" target="_blank"><span class="s_9255B882">See here for this great MIN report.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">There was a widespread natural avalanche cycle to size 3 on all aspects and elevations from last Wednesday's storm in the areas south of Valemount. Expect the storm slabs to continue to be reactive at upper elevations, especially with more loading on Saturday.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Initial reports from Saturday include numerous natural and skier triggered loose wet avalanches at lower elevations (size 1.5) . Reports from Friday include several large natural avalanches including a size 3 persistent slab in the Rossland range and up to size 3.5 deep persistent slabs in the Valhallas (failing on basal facets over 2 m deep).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The upper snowpack should stabilize with cooler temperatures, but deeper persistent weak layers remain under heavy stress and have the potential for large and surprising avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Visibility was very limited today. An avalanche cycle continues, with recent slab avalanches up to size 3.5 occurring on all aspects at all elevations. All of the avalanches are stepping down to the basal weak layers. Crowns are up to 1.5m deep and propagations have been wide. Many avalanches have reached or exceeded their historic run-outs, in some cases destroying significant tracts of mature forest.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. Storm slabs may be lingering in alpine terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past several days have seen widespread natural avalanche activity at all elevations and on all aspects, including a Size 4.5 in the central Selkirk range reported Thursday (crown height up to 3.5 m high, running 1200 vertical metres and leaving debris up to 28 metres deep) and a Size 3.5 near the Valhallas on a southeast aspect near 2400m ; a Size 3.5 natural running to ground on a west aspect at 1900m on Sunday... every day one or two spooky large avalanches in this region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many of the recent avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday morning a Size 2 storm slab (crown height 15-20cm) was remote-triggered on a bootpack path in the backcountry near Golden. Also on Saturday, a Size 4 natural avalanche was reported in the northern part of the region starting at 2700m on an east aspect and running 1400 metres to valley bottom, gouging to ground in some locations. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The past few days warm and wet weather have seen a natural avalanche cycle to Size 4 from a variety of aspects and elevations. In the wake of Saturday's storm expect the likelihood of triggering an avalanche to remain elevated. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday included observations of one naturally triggered Size 3 deep persistent slab as well as numerous natural storm slab releases occurring on northeast to northwest aspects just west of Fernie. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday showed explosives triggered persistent slabs (and one storm slab) running from Size 2.5-3. Crown fractures generally ranged from 100-200 cm. On Thursday, storm slabs were observed releasing naturally to Size 2, with explosives control yielding deep persistent slabs to Size 3. Most crown fractures measured about one metre but one impressive storm slab featured a three metre fracture depth. North to northeast aspects were the main performers over both days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, recently formed storm slabs and cornices in the high alpine will likely remain reactive to natural and human triggering on Monday, especially while the sun is out. The heightened avalanche activity shown by the above reports is expected to gradually decrease, but the scale and extent of this activity demands that backcountry users take caution with that assumption.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Saturday included two explosives triggered Size 2 wind slabs south of Crowsnest Pass. These occurred on northeast to southeast aspects in alpine terrain and featured crown fracture depths of 20-80 cm.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">A report from Friday in the Crowsnest area showed a natural Size 3.5 deep persistent slab that began as a ridgetop wind slab release before stepping down to ground as it descended its track. Another explosives triggered Size 3.5 deep persistent slab was reported north of Sparwood. The resulting debris pile appeared to be roughly 10 metres high.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recently formed wind slabs at alpine elevations will likely remain reactive to natural and human triggering on Monday, especially while the sun is out. Although cooling temperatures should reduce the likelihood of persistent slab activity over Monday, the recent scale and extent of this activity demands that backcountry users take caution with that assumption.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday, explosive control and ski cutting produced numerous small storm slabs (size 1-1.5) and two size 2 storm slabs up to 50 cm deep. Most failed within the storm snow, but a few on the mid-March rain crust.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, wind slabs may remain reactive in human triggers and the deeper mid-February weak layer continues to present a low likelihood of triggering yet would produce a large avalanche and thus a high consequence if triggered.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Saturday in the north part of the region, a size 3 natural avalanche was reported to have triggered in the storm snow and stepping down to one of the February weak layers. Explosive control produced a few size 2-2.5 storm slabs and a few natural storm slabs were reported in the northern part of the region. On Friday, a large cornice fall missed a group of skiers on a north aspect in the Duffey area. </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/south-coast-inland?panel=mountain-information-network-submissions%2Ffe223697-c82b-4aa1-b0da-a78efd4c019d" target="_blank"><span class="s_B5813F7D">Click here to See a MIN report for details.</span></a><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Monday, storm and wind slabs may remain reactive in human triggers at upper elevation. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday included observations of the evidence of several recent natural Size 2 storm slab releases that occurred at 1300-1400 metres. One natural Size 2 was also directly observed running from a steep unskiable terrain feature as direct result of ongoing wind loading. The above activity took place mainly on north to east aspects, highlighting the recent change in wind direction.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A report from Thursday included several observations from the north of the region, where skier traffic triggered a Size 2.5 wind slab as well as a Size 2 persistent slab over the late February interface down 50 cm. The large wind slab release was triggered from a thin spot and had a crown fracture that ranged from 30-100 cm. This should draw attention to the significant effect of recent winds as well as the touchy nature of the thin edges of large wind slabs. This activity took place on north to northwest aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include observations of a natural avalanche cycle in the Howson Range, where several Size 2.5-3.5 storm slabs released naturally from north to east aspects between 1200-1700 metres. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from the Telkwa area also details a snowmobile triggered Size 2.5 wind slab. The March 14 crust mentioned in our snowpack discussion was identified as the failure plane in this occurrence as well as in a skier triggered Size 2 wind slab north of Kispiox. These close calls should draw attention to the extent of recent wind transport as well as the March 14 crust's excellent performance as a sliding layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The past several days have seen widespread natural avalanche activity at all elevations and aspects, including a Size 4.5 in the central Selkirk range reported Thursday (crown height up to 3.5 m high, running 1200 vertical metres and leaving debris up to 28 metres deep).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. Widespread wet slabs and loose wet avalanches have also been reported below treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday skiers triggered a Size 1.5 wind slab quite low down on a slope - strong winds had transported snow farther than expected.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday a Size 2.5 natural slab avalanche on a west aspect took out trees. The sun came out in force and cornices were failing. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/f00fcd0d-375f-440c-86c2-0127d5532247" target="_blank"><span class="s_9255B882">See here for this great MIN report.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">There was a widespread natural avalanche cycle to size 3 on all aspects and elevations from last Wednesday's storm in the areas south of Valemount. Expect the storm slabs to continue to be reactive at upper elevations, especially with more loading from Saturday's storm.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include numerous natural and skier triggered loose wet avalanches at lower elevations (size 1.5) . Reports from Friday include several large natural avalanches including a size 3 persistent slab in the Rossland range and up to size 3.5 deep persistent slabs in the Valhallas (failing on basal facets over 2 m deep).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The upper snowpack should stabilize with cooler temperatures when crust form or reform, but deeper persistent weak layers remain under heavy stress and have the potential for large and surprising avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">An avalanche cycle continues, with recent slab avalanches up to size 3.5 occurring on all aspects at all elevations. Many of the avalanches today occurred in common ski touring terrain. All of the avalanches are stepping down to the basal weak layers. Crowns are up to 1.5m deep and propagations have been wide. Many avalanches have reached or exceeded their historic run-outs, in some cases destroying significant tracts of mature forest. Avalanche control work today on EEOR, the Big Sister and Mt Buller produced results up to size 3.0.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. Storm and wind slabs may be lingering in alpine terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">We had a widespread natural avalanche cycle (to Size 4.5) at all elevations and aspects during the recent storm, including multiple adjacent avalanche paths running simultaneously with 1 Km wide propagation.</span></p><p class="p_CC664AAA"><span class="s_1681A555">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. Widespread wet slabs and loose wet avalanches were also reported below treeline.</span></p><p class="p_CC664AAA"><span class="s_1681A555">Of particular concern are the ongoing large destructive avalanches (some scrubbing to ground) that have been occurring daily: one or two deep spooky avalanches in each bulletin region of the Columbia Mountains. See the link in the headline for detailed discussion of these low probability, high consequence events. </span><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've had several reports recently of surprising persistent (deep) slab avalanches to Size 4, many scrubbing to ground. See the link in the headline for detailed discussion of these low probability, high consequence events.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A reconnaissance flight to Silent Pass in the north part of the region reported numerous natural avalanches to Size 3-4 on a wide variety of aspects and elevations. Some crowns were several hundred meters wide and avalanches ran to valley bottom... something to keep in mind when traveling up logging roads is your overhead exposure. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the wake of Saturday's storm expect the likelihood of triggering an avalanche to remain elevated.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Sunday. but reports from Saturday included observations of one naturally triggered Size 3 deep persistent slab as well as numerous natural storm slab releases occurring on northeast to northwest aspects just west of Fernie. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday showed explosives triggered persistent slabs (and one storm slab) running from Size 2.5-3. Crown fractures generally ranged from 100-200 cm. On Thursday, storm slabs were observed releasing naturally to Size 2, with explosives control yielding deep persistent slabs to Size 3. Most crown fractures measured about one metre but one impressive storm slab featured a three metre fracture depth. North to northeast aspects were the main performers over both days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, recently formed storm slabs at alpine elevations may remain reactive to natural and human triggering on Tuesday, especially as temperatures rise. While recent strong crust recovery has been tempering the likelihood of persistent slab activity, the rise in freezing levels and forecast rain may prompt renewed persistent slab activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No new avalanches were reported on Sunday. Reports from Saturday included two explosives triggered Size 2 wind slabs south of Crowsnest Pass. These occurred on northeast to southeast aspects in alpine terrain and featured crown fracture depths of 20-80 cm.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">A report from Friday in the Crowsnest area showed a natural Size 3.5 deep persistent slab that began as a ridgetop wind slab release before stepping down to ground as it descended its track. Another explosives triggered Size 3.5 deep persistent slab was reported north of Sparwood. The resulting debris pile appeared to be roughly 10 metres high.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, recently formed wind slabs at alpine elevations may remain reactive to natural and human triggering on Tuesday, especially if they see rainfall. While recent strong crust recovery has been tempering the likelihood of persistent slab activity, another rise in freezing levels and forecast rain may prompt renewed persistent slab activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports indicate both natural and human triggered wind slab avalanches in alpine and tree line lee terrain to size 1.5. Earlier last weekend, explosive control and ski cutting produced numerous small storm slabs (size 1-1.5) and two size 2 storm slabs up to 50 cm deep. Most failed within the storm snow, but a few on the mid-March rain crust.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, wind slabs may remain reactive in human triggers and at upper elevations the deeper mid-February weak layer continues to present a low likelihood of triggering yet would produce a large avalanche and thus a high consequence if triggered.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There is no recent avalanche activity to report. That being said through last weekend there were numerous natural and explosives controlled avalanches reported to size 3 that were triggered in the storm snow and stepped down to one of the February weak layers. On Friday, a large cornice fall missed a group of skiers on a north aspect in the Duffey area. </span><a id='GoToAdded' href="http://www.avalanche.ca/map/forecasts/south-coast-inland?panel=mountain-information-network-submissions%2Ffe223697-c82b-4aa1-b0da-a78efd4c019d" target="_blank"><span class="s_B5813F7D">Click here to See a MIN report for details.</span></a><span class="s_3FE45715"> </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, wind slabs may remain reactive in human triggers at upper elevation. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A social media report from Sunday described very touchy cornices in the Wolf's Den area north of Terrace, with remote triggering occurring from as far away as 25 metres. A social media/MIN report from the Exstew area shows a recent Size 3 avalanche that appears to have triggered naturally and quite possibly over the late February weak layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday included observations of the evidence of several recent natural Size 2 storm slab releases that occurred at 1300-1400 metres. One natural Size 2 was also directly observed running from a steep unskiable terrain feature as direct result of ongoing wind loading. The above activity took place mainly on north to east aspects, highlighting the recent change in wind direction.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A report from Thursday included several observations from the north of the region, where skier traffic triggered a Size 2.5 wind slab as well as a Size 2 persistent slab over the late February interface down 50 cm. The large wind slab release was triggered from a thin spot and had a crown fracture that ranged from 30-100 cm. This activity took place on north to northwest aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A MIN report from Sunday in the Pine Creek area describes a recent natural Size 2 slab avalanche that appeared to have triggered with a cornice fall.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday include a MIN report from the Galleon area that details a directly observed naturally triggered Size 3 avalanche. The failure plane remains uncertain. Another MIN report from the Telkwa area also detailed a snowmobile triggered Size 2.5 wind slab. The March 14 crust mentioned in our snowpack discussion was identified as the failure plane in this occurrence as well as in another skier triggered Size 2 wind slab north of Kispiox. These close calls should draw attention to the extent of recent wind transport as well as the March 14 crust's excellent performance as a sliding layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We had a widespread natural avalanche cycle (to Size 4.5) at all elevations and aspects during the recent storm, including multiple adjacent avalanche paths running simultaneously with 1 Km wide propagation.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. Widespread wet slabs and loose wet avalanches were also reported below treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Of particular concern are the ongoing large destructive avalanches (some scrubbing to ground) that have been occurring daily: one or two deep spooky avalanches in each bulletin region of the Columbia Mountains. See the link in the headline for detailed discussion of these low probability, high consequence events. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday we had reports of natural storm slab avalanches to Size 3 at treeline near Valemount, on a variety of aspects. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday skiers triggered a Size 1.5 wind slab quite low down on a slope - strong winds had transported snow farther than expected.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect storm slabs from the weekend to continue to be reactive at upper elevations, especially if the sun comes out in full force.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Since the cooling weather trend there have been no reports of significant avalanche activity. That being said reports are still rolling in about the extent of avalanche activity during the rain event. Numerous large natural avalanches including size 3 and 3.5 persistent slabs were reported throughout the region failing on deep persistent weak layers at a variety of elevations and aspects.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The avalanche cycle continues with several avalanches observations up to size 3 on all aspects (including windward side).</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. Expect  thin loose wet avalanches in the alpine and tree line elevation bands in the coming days.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">We had a widespread natural avalanche cycle (to Size 4.5) at all elevations and aspects during the recent storm, including multiple adjacent avalanche paths running simultaneously with 1 Km wide propagation.</span></p><p class="p_CC664AAA"><span class="s_1681A555">A surprising, very large avalanche in the south of the region was reported on what looks like very enticing terrain. </span><a href="https://www.facebook.com/photo.php?fbid=1087394768072229&amp;set=gm.1267972376611955&amp;type=3" target="_blank"><span class="s_69909980">See here for the photo.</span></a><span class="s_1681A555"> </span></p><p class="p_CC664AAA"><span class="s_1681A555">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. </span></p><p class="p_CC664AAA"><span class="s_DDF6C5E8">Of particular concern are the ongoing large destructive avalanches (some scrubbing to ground) that have been occurring daily: one or two deep spooky avalanches in each bulletin region of the Columbia Mountains. See the link in the headline for detailed discussion of these low probability, high consequence events.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We've had several reports recently of surprising persistent (deep) slab avalanches to Size 4, many scrubbing to ground. See the link in the headline for detailed discussion of these low probability, high consequence events.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">A reconnaissance flight to Silent Pass in the north part of the region reported numerous natural avalanches to Size 3-4 on a wide variety of aspects and elevations. Some crowns were several hundred meters wide and avalanches ran to valley bottom... something to keep in mind when traveling up logging roads is your overhead exposure.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In the wake of Saturday's storm expect the likelihood of triggering an avalanche to remain elevated, including cornice triggers. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/e83dc355-3e52-4e09-809a-fcdd80dc4a6b" target="_blank"><span class="s_9255B882">Click here for this great MIN report.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few small solar triggered avalanches were reported over the past few days, but there has not been any notable recent activity. A large avalanche cycle occurred during last weekend's storm, including some that stepped down to deeper weak layers well over a metre deep.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">New snow should form wind slabs at higher elevations, well warming and cornice falls are potential triggers for deep persistent slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported. Evidence of a large natural avalanche cycle during last week's storm has been reported around the Crowsnest Pass / Sparwood area (typically size 2.5 deep persistent slabs). A fresher size 3 avalanche in the Alexander Creek drainage was possibly triggered by a cornice fall on Sunday. Widespread natural activity in the neighboring Kananaskis region suggest conditions may be touchier north of Elkford.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">New snow should form wind slabs at higher elevations, well warming and cornice falls are potential triggers for deep persistent slab avalanches.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports indicate both natural and human triggered wind slab avalanches in alpine and tree line lee terrain to size 1.5. On Wednesday, wind slabs may remain reactive to human triggers and at upper elevations the deeper mid-February weak layer continues to present a low likelihood of triggering yet would produce a large avalanche and thus a high consequence if triggered.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There is no recent avalanche activity to report. On Wednesday, wind slabs may remain reactive in human triggers at upper elevations. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Monday indicate the persistent slab problem is alive and well throughout the region. Reports include two size 3 natural avalanches north of Terrace, another size 3 avalanche that was remotely triggered from flat terrain by a snowmobiler north of Stewart, and a few smaller size 1.5-2 persistent slabs also likely triggered by humans. Most of these avalanches occurred on northerly aspects above treeline. One of the large naturals was likely triggered by solar radiation on a south aspect, while the other one by a cornice fall on a northeast aspect. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In addition to the ongoing persistent slab problem, the incoming weather pattern is looking to continually build fresh wind slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, a size 3 slab avalanche was triggered by a cornice fall on a north aspect at 1700 m north of Kispiox. Over the weekend, several reports describe reactive wind slabs above the March 14 crust, including a size 2.5 snowmobile-triggered avalanche in the Telkwas and a size 2 skier-triggered wind slab north of Kispiox. Additional MIN reports also describe recent natural activity in the size 2-3 range, one of which was triggered by a cornice fall.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The recent activity should draw attention to the extent of recent wind transport as well as the March 14 crust's excellent performance as a sliding layer.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We had a widespread natural avalanche cycle (to Size 4.5) at all elevations and aspects during the recent storm, including multiple adjacent avalanche paths running simultaneously with 1 Km wide propagation.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Many of these avalanches ran in the storm snow with some also stepping down to persistent weaknesses (see snowpack summary below) deeper in the snowpack. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Of particular concern are the ongoing large destructive avalanches (some scrubbing to ground) that have been occurring daily: one or two deep spooky avalanches in each bulletin region of the Columbia Mountains. See the link in the headline for detailed discussion of these low probability, high consequence events.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday we had reports of natural storm slab avalanches to Size 3 at treeline near Valemount, on a variety of aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday skiers triggered a Size 1.5 wind slab quite low down on a slope - strong winds had transported snow farther than expected.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect storm slabs and wind slabs from the weekend to continue to be reactive at upper elevations, especially if the sun comes out in full force. Occasional cornice fall has also triggered large slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Disciplined travel is essential: Carefully manage your exposure and stick to conservative terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Since the cooling weather trend there have been no reports of significant avalanche activity.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed today but the places that have not gone look primed to go. The forecasters are still avoiding any exposure to larger slopes overhead. One recent avalanche in the Burstall area crossed the valley bottom into the trees on the opposite side and put a couple of meters of snow where skiers often put their track.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. Expect thin loose wet avalanches in the alpine and tree line elevation bands in the coming days. In the highest alpine areas reactive storm and wind slabs may be forming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, a ski cut triggered a thin size 1 storm slab on a north aspect at 2000 m. Explosives triggered a size 2.5 cornice which cleaned out the slope below. On Monday, a natural cornice release triggered a size 1.5 wind slab on a north aspect at 2500 m and a natural size 2 storm slab was observed on a southeast aspect at 2200 m. Four natural size 2.5-3 wind slabs were also observed on southeast and east aspects at 2250-2400 m. Explosives triggered a deep persistent slab on a northeast aspect that released up to 2 m deep. Over the weekend, a widespread avalanche cycle occurred with avalanches up to size 4.5. This included very large cornice releases, avalanches releasing on layers near the base of the snowpack, propagations over 1 km wide, and mature timber being broken. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">Click here for photos of the recent avalanches.</span></a><span class="s_3FE45715" /></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, sun is expected to drive the hazard. If there is are long periods of strong sun, expect sluffing from steep sun exposed slopes, cornices will become weak, and persistent slab avalanches could fail naturally. With the recent avalanche activity and several weak layers within snowpack waking up, it is a time to be very conservative with terrain selection. </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a natural size 2.5 cornice release was reported. Explosives triggered two size 3 persistent slabs on west and north aspects at 2600-2800 m which failed down 100 cm. Explosives also triggered a size 2.5 cornice on an east aspect which cleaned out the steep slope below. On Monday, a natural size 3.5 deep persistent slab was observed on a northeast aspect at 3300 m which released down 100 cm. Explosives triggered two cornices on northeast aspects. One scrubbed down to ground and the other triggered a persistent slab which failed on facets down 50-150 cm. </span><span class="s_3FE45715">Over the weekend, a widespread avalanche cycle occurred with avalanches up to size 4. This included avalanches releasing on layers near the ground, propagations over 1 km wide, and avalanches breaking large timber. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">Click here for photos of the recent avalanches.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, sun is expected to drive the hazard. If there is are long periods of strong sun, expect sluffing from steep sun exposed slopes, cornices will become weak, and persistent slab avalanches could fail naturally. With several deep weak layers within snowpack waking up, it is a time to be very conservative with terrain selection.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Wednesday, numerous size 1-2 natural avalanches were reported in the new snow, some as dry slabs and others as loose wet avalanches depending on the elevation and time of day. Explosive control and ski cutting produced several size 1.5 avalanches in the new snow as well.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, cooling temperatures should generally heal the new snow, although the afternoon sun could trigger avalanches in the new snow. However, the primary concern is the potential for large deep persistent slab avalanches triggered by a cornice fall, wind loading, sunlight, or warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported. Evidence of a large natural avalanche cycle during last week's storm has been reported around the Crowsnest Pass / Sparwood area as well as around Waterton (typically size 2.5 deep persistent slabs). A fresher size 3 avalanche in the Alexander Creek drainage was possibly triggered by a cornice fall on Sunday. Widespread natural activity in the neighboring Kananaskis region suggest conditions may be touchier north of Elkford.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking ahead, the primary concern is the potential for large deep persistent slab avalanches triggered by a cornice fall, wind loading, sunlight, or warming.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports indicate both natural and human triggered wind slab avalanches in alpine and tree line lee terrain to size 1.5. On Thursday, wind slabs may remain reactive to human triggers and at upper elevations the deeper mid-February weak layer continues to present a low likelihood of triggering yet would produce a large avalanche and thus a high consequence if triggered.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There is no recent avalanche activity to report. On Thursday, wind slabs may remain reactive to human triggers at upper elevations. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday indicate the persistent slab problem is alive and well throughout the region. A few natural size 2-2.5 avalanches were triggered in the Bear Pass / Stewart area by solar input or cornices. A skier also remotely triggered a size 2 avalanche on the February facet/crust interface on a moraine feature around 1150 m (40 cm deep). Similar activity was reported on Monday, including a size 3 avalanche that was remotely triggered from flat terrain by a snowmobiler north of Stewart. Smaller natural avalanches were also reported on Tuesday, including size 1-2 wind slabs from recent wind loading and size 1.5-2 loose moist avalanches in steep solar-facing terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In addition to the ongoing persistent slab problem, the incoming weather pattern is looking to continually build fresh wind slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a skier near Hazelton remotely triggered a size 1 avalanche that subsequently triggered two other size 2 avalanches on a persistent weak layer (30 cm deep). The avalanches occurred on northeast aspects at 1400 m. On Monday, a size 3 slab avalanche was triggered by a cornice fall on a north aspect at 1700 m north of Kispiox. Over the weekend, several reports describe reactive slabs above a crust, including a size 2.5 snowmobile-triggered avalanche in the Telkwas and a size 2 skier-triggered wind slab north of Kispiox.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Steady loading and warming should keep the persistent slab reactive throughout the week.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Tuesday, a size 3 cornice released on a northeast aspect at 2800 m scrubbed down to rock. Explosives released a cornice on a north aspect which triggered a size 3.5 deep persistent slab which stepped down to the November crust and to the ground in places. Explosives also released a size 2 cornice with a small slab and a size 2.5 persistent slab on a south aspect which failed on the mid-Feb crust layer down 120 cm. On Monday, several natural cornices released on north aspects and many triggered storm slabs. One of these triggered a deep persistent slab which failed on basal facets down 100 cm. Over the weekend, several natural storm slabs up to size 3 were reported and a cornice triggered size 3.5 persistent slab avalanche which failed on the February layer down 100 cm. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">Click here for photos of some recent avalanches.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_3FE45715">On Thursday, sun is expected to drive the hazard. If there is are long periods of strong sun, expect sluffing from steep sun exposed slopes, cornices will become weak, and persistent slab avalanches could fail naturally. With the recent avalanche activity and several weak layers within snowpack waking up, it is a time to be very conservative with terrain selection.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday indicate snowballing and loose snow avalanches to size 1 from steep terrain on all aspects from tree line and below.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed today but the places that have not gone look primed to go. The forecasters are still avoiding any exposure to larger slopes overhead. Avalanches that have occurred over the past weak were very large, had wide propagations and failed in the basal weak layers. In many cases these slides have been reaching or exceeding historic run-outs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. Expect thin loose wet avalanches in the alpine and tree line elevation bands in the coming days. In the highest alpine areas where the latest precipitation may have fallen as snow expect to see reactive storm and wind slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a few small storm slabs were reported to run naturally overnight in steep alpine terrain and then also react to explosives in the morning (size 1-1.5). More evidence of large deep persistent slab avalanches from last weekend's avalanche cycle were also reported from the Barnes Lake and Cold Feet areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect wind slabs to develop throughout the day on Friday as another pulse of snow and wind arrives in the afternoon. However, the </span><span class="s_3FE45715">primary concern is the potential for deep persistent slab avalanches triggered by natural triggers such as a cornice fall. See the forecaster blog for advice on managing a low probability - high consequence problem </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715"> and the accompanying photos </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715">.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported. Evidence of a large natural avalanche cycle during last week's storm has been reported around the Crowsnest Pass / Sparwood area as well as around Waterton (typically size 2.5 deep persistent slabs). A fresher size 3 avalanche in the Alexander Creek drainage was possibly triggered by a cornice fall on Sunday. Widespread natural activity in the neighboring Kananaskis region suggest conditions may be touchier north of Elkford.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking ahead, the primary concern is the potential for large deep persistent slab avalanches triggered by natural triggers such as a cornice fall. See the forecaster blog for advice on managing a low probability - high consequence problem </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715"> and the accompanying photos </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715">.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Recent reports show observations of both natural and human triggered wind slab avalanches running to Size 1.5 in alpine and tree line lee terrain. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, ongoing storm slab formation will lead to easy human triggering at the depth of new snow as well as the potential for natural avalanche activity. At upper elevations, the deeper mid-February weak layer has been trending toward a low likelihood of triggering. However, with new snow and wind loading the snowpack, it would be best to consider the potential for reactivity at this layer in your terrain selection.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">There is no recent avalanche activity to report. On Thursday, wind slabs may remain reactive to human triggers at upper elevations. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were reported on Wednesday, but reports from Tuesday indicate the persistent slab problem is alive and well throughout the region. A few natural size 2-2.5 avalanches were triggered in the Bear Pass / Stewart area by solar input and cornices. A skier also remotely triggered a size 2 avalanche on the February facet/crust interface on a moraine feature around 1150 m (40 cm deep). Similar activity was reported the previous day, including a size 3 avalanche that was remotely triggered from flat terrain by a snowmobiler north of Stewart.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In addition to the ongoing persistent slab problem, the incoming weather pattern is looking to continually build fresh wind slabs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday are limited to several size 1 loose wet avalanches running on a sun crust at lower elevations. On Tuesday, a skier near Hazelton remotely triggered a size 1 avalanche that subsequently triggered two other size 2 avalanches on a persistent weak layer (30 cm deep). The avalanches occurred on northeast aspects at 1400 m. On Monday, a size 3 slab avalanche was triggered by a cornice fall on a north aspect at 1700 m north of Kispiox. Over the weekend, several reports describe reactive slabs above a crust, including a size 2.5 snowmobile-triggered avalanche in the Telkwas and a size 2 skier-triggered wind slab north of Kispiox.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The cooling trend should help stabilize the persistent slab, but human triggering is still possible in steep or unsupported terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday showed our recent snow accumulations triggering naturally as loose moist sluffs from Size 1-2 below treeline. The recent snow also reacted to ski cutting and small cornice releases at higher elevations, producing Size 1 results. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday indicated snowballing and loose snow avalanches to size 1 from steep terrain on all aspects from tree line and below.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, similar activity can be expected on Friday as new snow accumulates, wind redistributes it into reactive wind slabs, and rising freezing levels promote loose wet activity at lower elevations. Meanwhile, the lingering possibility of persistent slab reactivity continues to demand a more cautious approach to terrain selection in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new avalanches were observed today but the places that have not gone look primed to go. The forecasters are still avoiding any exposure to larger slopes overhead. Avalanches that have occurred over the past weak were very large, had wide propagations and failed in the basal weak layers. In many cases these slides have been reaching or exceeding historic run-outs.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, the focus is on our new snow accumulations. At lower elevations where temperatures approach 0 or higher, new snow can be expected to release in natural loose wet avalanches out of steep terrain, as well as under skier traffic. At higher, colder elevations, more of our recent precipitation likely fell as snow. This means you can expect to find increasingly thick and reactive storm and/or wind slabs as you gain elevation in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a few small storm slabs were reported to run naturally overnight in steep alpine terrain and then also react to explosives in the morning (size 1-1.5). More evidence of large deep persistent slab avalanches from last weekend's avalanche cycle were also reported from the Barnes Lake and Cold Feet areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect wind slabs to develop throughout the day on Friday into Saturday as another pulse of snow and wind arrives in the afternoon. However, the primary concern is the potential for deep persistent slab avalanches triggered by natural triggers such as a cornice fall. See the forecaster blog for advice on managing a low probability - high consequence problem (</span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">) and the accompanying photos (</span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, several small Size 1 wind slabs were ski cut on north through east aspects between 1700 and 2200m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Evidence of a large natural avalanche cycle during last week's storm has been reported around the Crowsnest Pass / Sparwood area as well as around Waterton (typically size 2.5 deep persistent slabs). A fresher size 3 avalanche in the Alexander Creek drainage was possibly triggered by a cornice fall on Sunday. Widespread natural activity in the neighboring Kananaskis region suggest conditions may be touchier north of Elkford.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking ahead, the primary concern is the potential for large deep persistent slab avalanches triggered by natural triggers such as a cornice fall. See the forecaster blog for advice on managing a low probability - high consequence problem (</span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">) and the accompanying photos (</span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">).</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday showed explosives control in the Whistler area producing storm slab releases to Size 2. Crown fractures were generally 50-100 cm thick.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from the preceding days included observations of both natural and human triggered wind slab avalanches running to Size 1.5 in alpine and tree line lee terrain. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, storm slabs will continue to build in the overnight period and will be primed for human triggering on Saturday. There is a chance of some solar exposure on Saturday, which means heightened reactivity on any solar exposed slopes. At upper elevations, the deeper mid-February weak layer has been trending toward a low likelihood of triggering. However, with heavy storm slab and cornice triggers now widely available, it would be best to consider the potential for reactivity at this layer in your terrain selection.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday showed both natural and skier triggered storm and wind slabs releasing from Size 1-2 in the north of the region. Wind slabs were noted releasing above the melt freeze crust that was buried on March 22. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence avalanche danger scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday skiers were able to trigger a small Size 1 wind slab (10cm thick), running on the March 22nd surface hoar layer. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday indicate the persistent slab problem is alive throughout the region. A few natural size 2-2.5 avalanches were triggered in the Bear Pass / Stewart area by solar input and cornices. A skier also remotely triggered a size 2 avalanche on the February facet/crust interface on a moraine feature around 1150 m (40 cm deep). Similar activity was reported the previous day, including a size 3 avalanche that was remotely triggered from flat terrain by a snowmobiler north of Stewart.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In addition to the ongoing persistent slab problem, the incoming weather pattern is looking to continually build fresh wind slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday are limited to several size 1 loose wet avalanches running on a sun crust at lower elevations. On Tuesday, a skier near Hazelton remotely triggered a size 1 avalanche that subsequently triggered two other size 2 avalanches on a persistent weak layer (30 cm deep). The avalanches occurred on northeast aspects at 1400 m. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, a size 3 slab avalanche was triggered by a cornice fall on a north aspect at 1700 m north of Kispiox. Over the weekend, several reports describe reactive slabs above a crust, including a size 2.5 snowmobile-triggered avalanche in the Telkwas and a size 2 skier-triggered wind slab north of Kispiox.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The cooling trend should help stabilize the persistent slab, but human triggering is still possible in steep or unsupported terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday showed explosives control south of Nelson producing storm slab releases up to Size 1.5 with crown depths of 10-15 cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday showed our recent snow accumulations triggering naturally as loose moist sluffs from Size 1-2 below treeline. The recent snow also reacted to ski cutting and small cornice releases at higher elevations, producing Size 1 results. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, similar activity can be expected on Saturday as light new snow amounts accumulate and are redistributed into wind slabs in wind affected terrain. Meanwhile, the lingering possibility of persistent slab reactivity continues to demand a more cautious approach to terrain selection in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">No new Natural or human triggered avalanche activity was observed or reported. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, the focus is on our new snow accumulations. At higher, colder elevations, more of our recent precipitation likely fell as snow. This means you can expect to find increasingly thick and reactive storm and/or wind slabs as you gain elevation into the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, numerous small human triggered avalanches were reported in the top 20-30 cm of storm snow on northerly aspects above 1800 m. Most were size 1-1.5, but a few size 2 slabs were reported as well. Sluffing was reported in steep terrain. Explosive control produced a size 1.5 cornice chunk that did not trigger a slab on the slope below. On Thursday, several size 1.5-2 wind slabs were skier triggered and a natural cornice release triggered two pockets of deep slab in extreme terrain. Explosives triggered 6 cornices up to size 3, but only one these cornices triggered a slab. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, morning sun is a potential trigger for cornice falls and deeper weak layers. Read the forecasters blog </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715"> for advice on how to manage this low probability, high consequence scenario and check out the accompanying photos </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715">. Also expect the recent snow to settle into a slab that will be most reactive at higher elevations, especially in wind loaded terrain and on steep convexities.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, cornice control produced 2 cornice chunks on northeast alpine ridges. One triggered a size 1 slab and the other entrained some loose snow. A natural size 1 wind slab and cracking under skies was reported in the central part of the region. A few larger avalanches were reported midweek, including </span><span class="s_AA239A9B">a natural size 3 avalanche on a northeast aspect at 2500 m, an explosive triggered avalanche that failed on the ground down 100 cm, and a natural size 4 deep persistent slab that failed on a broad ridge feature on south through north aspects.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, morning solar radiation is a potential trigger for cornice falls and deeper weak layers. Read the forecasters blog </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715"> for advice on how to manage this low probability, high consequence scenario and check out the accompanying photos </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715">. Also expect wind slabs in the lee of exposed terrain at higher elevations.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, many explosive-triggered storm slabs to Size 2.5 were reported near Fernie, on primarily northeast aspects from 1700-2100m, having average depths of 20-40cm, running on the recent melt-freeze crust. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, a few small storm slabs were reported to run naturally overnight in steep alpine terrain and then also react to explosives in the morning (size 1-1.5). More evidence of large deep persistent slab avalanches from last weekend's avalanche cycle were also reported from the Barnes Lake and Cold Feet areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect wind slabs to develop as winds continue to transport snow at treeline and in the alpine. However, the primary concern is the potential for deep persistent slab avalanches triggered by natural triggers such as a cornice fall. See the forecaster blog for advice on managing a low probability - high consequence problem (</span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">) and the accompanying photos (</span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_9255B882">here</span></a><span class="s_AA239A9B">).</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday included numerous observations of storm slabs releasing generally from Size 1-1.5 with ski cutting and explosives control in the Whistler area. One natural Size 2 wind slab was reported as well as one remotely triggered Size 1.5 cornice. Crown fractures were typically 20-40 cm deep.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday showed explosives control in the Whistler area producing storm slab releases to Size 2. Crown fractures were generally 50-100 cm thick.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, storm slabs will likely remain reactive to human triggering on Sunday. At upper elevations, the deeper mid-February weak layer has been trending toward a low likelihood of triggering. However, with heavy storm slab and cornice triggers now widely available, it would be best to consider the potential for reactivity at this layer in your terrain selection.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday showed wind slabs releasing to Size 1 with ski cutting in steep lee and crossloaded features as well as loose moist sluffs triggering naturally to Size 1 out of steep terrain.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday showed both natural and skier triggered storm and wind slabs releasing from Size 1-2 in the north of the region. Wind slabs were noted releasing above the melt freeze crust that was buried on March 22. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence avalanche danger scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, a spooky Size 3.5 persistent slab with impressive propagation was remote-triggered north of Terrace at 1500m elevation. </span><a href="https://www.facebook.com/groups/314113201944133/permalink/1418885088133600/" target="_blank"><span class="s_9255B882">See here for more details in this excellent post.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">Also on Friday, a Size 2.5 persistent slab (2m deep) was reported running out of steep terrain. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Thursday, skiers were able to trigger a small Size 1 wind slab (10cm thick), running on the March 22nd surface hoar layer.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Tuesday indicate the persistent slab problem is alive throughout the region. A few natural size 2-2.5 avalanches were triggered in the Bear Pass / Stewart area by solar input and cornices. A skier also remotely triggered a size 2 avalanche on the February facet/crust interface on a moraine feature around 1150 m (40 cm deep). Similar activity was reported the previous day, including a size 3 avalanche that was remotely triggered from flat terrain by a snowmobiler north of Stewart.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">In addition to the daunting persistent slab problem, the incoming weather pattern is looking to continually build fresh storm slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, loose snow avalanches were reported at treeline in steep terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday are limited to several Size 1 loose wet avalanches running on a sun crust at lower elevations. On Tuesday, a skier near Hazelton remotely triggered a Size 1 avalanche that subsequently triggered two other Size 2 avalanches on a persistent weak layer (30 cm deep). The avalanches occurred on northeast aspects at 1400 m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Monday, a Size 3 slab avalanche was triggered by a cornice fall on a north aspect at 1700 m north of Kispiox. Over the weekend, several reports describe reactive slabs above a crust, including a Size 2.5 snowmobile-triggered avalanche in the Telkwas and a Size 2 skier-triggered wind slab north of Kispiox.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The cooling trend should help stabilize the persistent slab, but human triggering is still possible in steep or unsupported terrain.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, small storm slabs were reactive to skier traffic on convex and wind loaded northerly aspects. Numerous size 1 avalanches were triggered in the top 20-30 cm of snow. Cornice failures were reported on a daily basis earlier in the week, with about one per day triggering a large slab on weak layers up to 2 m deep.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, morning sun is a potential trigger for cornice falls and deeper weak layers. Read the forecasters blog </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_9255B882">(here)</span></a><span class="s_AA239A9B"> for advice on how to manage this low probability, high consequence scenario and check out the accompanying photos </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_9255B882">(here)</span></a><span class="s_AA239A9B">. Also expect the recent snow to settle into a slab that will be most reactive at higher elevations, especially in wind loaded terrain and on steep convexities.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Friday, a natural size 3.5 avalanche was reported southwest of Valemount on a east aspect at 2600 m. It's not certain how old it was, but it was likely triggered by a cornice or ice fall, stepped down to ground, and destroyed some mature timber. A few smaller size 1 storm slabs were triggered on Thursday by skiers on northwest and east aspects at treeline. Earlier last week, several size 2.5-3.5 avalanches were triggered naturally and by explosives. This included a natural cornice triggered size 3 avalanche on a northeast aspect, and explosive triggered size 3.5 deep persistent slab that stepped down to the November crust, and a explosive triggered size 2.5 persistent slab that failed on the mid-February crust layer down 120 cm.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, morning sun is a potential trigger for cornice falls and deeper weak layers. Read the forecasters blog </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715"> for advice on how to manage this low probability, high consequence scenario and check out the accompanying photos </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/lp-hc-2017march" target="_blank"><span class="s_B5813F7D">(here)</span></a><span class="s_3FE45715">. Also expect the recent snow to settle into a slab that will be most reactive at higher elevations, especially in wind loaded terrain and on steep convexities.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Friday included observations of storm slabs and loose dry sluffs releasing to Size 1.5 with skier traffic. Slabs were noted as especially reactive where thin (5-10 cm) new snow accumulations sat over a crust.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Thursday showed explosives control south of Nelson producing storm slab releases up to Size 1.5 with crown depths of 10-15 cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Looking forward, our recently formed storm slabs are expected to remain sensitive to human triggering on Sunday, especially with forecast solar radiation in the morning. Meanwhile, the lingering possibility of persistent slab reactivity continues to demand a more cautious approach to terrain selection in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few loose dry avalanches up to sz 1 were observed out of steep unskiable terrain on Saturday.  No new slab avalanche activity was observed. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, the focus is on our most recent snow accumulations. It will take some time for recently formed storm slabs to build a solid bond to the previous surface and human triggering potential of these slabs will remain a concern over the short term. Expect to find increasingly thick and reactive storm slabs as you gain elevation into the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">On Sunday, explosives control work yielded a pair of Size 2 storm slabs (25-50cm thick) running on southeast aspects near 2000m elevation near Fernie. The Moccasin glide crack slid sometime Saturday night, running to ground. </span><a id='GoToAdded' href="http://www.avalanche.ca/mountain-information-network/submissions/62bec462-75b1-4fbd-bbee-2dc1f4498e7a" target="_blank"><span class="s_9255B882">See here for photo and more info.</span></a><span class="s_AA239A9B" /></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Saturday, many explosive-triggered storm slabs to Size 2.5 were reported near Fernie, on primarily northeast aspects from 1700-2100m, having average depths of 20-40cm, running on the March 21st rain crust.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Expect wind slabs to develop as winds continue to transport snow at treeline and in the alpine.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday and Saturday included numerous observations of storm slabs releasing typically to Size 1.5 with ski cutting and explosives control in the Whistler area. One natural Size 2 wind slab was reported on Friday as well as one remotely triggered Size 1.5 cornice. Crown fractures were typically 20-40 cm deep.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday showed explosives control in the Whistler area producing storm slab releases to Size 2. Crown fractures were generally 50-100 cm thick.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Looking forward, storm slabs may reactive to human triggering on Monday, especially in more wind affected and/or unsupported terrain. Concern also exists for large triggers like cornices or storm slabs to step down to the mid-March interface or, in more isolated areas of the alpine, the deeper mid-February weak layers.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Friday and Saturday showed wind slabs releasing to Size 1 with ski cutting in steep lee and crossloaded features as well as loose moist sluffs triggering naturally to Size 1 out of steep terrain. Saturday's observations showed a marked reduction in wind slab reactivity in the north of the region.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">Reports from Thursday showed both natural and skier triggered storm and wind slabs releasing from Size 1-2 in the north of the region. Wind slabs were noted releasing above the melt freeze crust that was buried on March 22. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence avalanche danger scenario.</span></p>
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</style><p class="p_CC664AAA"><span class="s_1681A555">On Saturday, several wind slabs to Size 1.5 were reported on (east) northeast aspects in the north of the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">On Friday, loose snow avalanches were reported at treeline in steep terrain in the south of the region. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Wednesday are limited to several Size 1 loose wet avalanches running on a sun crust at lower elevations. On Tuesday, a skier near Hazelton remotely triggered a Size 1 avalanche that subsequently triggered two other Size 2 avalanches on a persistent weak layer (30 cm deep). The avalanches occurred on northeast aspects at 1400 m.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Last Monday, a Size 3 slab avalanche was triggered by a cornice fall on a north aspect at 1700 m north of Kispiox. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">The cooling weather should help stabilize the persistent slab, but human triggering is still possible in steep or unsupported terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Reports from Saturday showed storm slabs releasing from Size 1-2 with ski cutting and explosives control. One natural Size 1.5 slab was observed on a steep northeast slope. Crown fractures generally ranged from 10-40 cm. Natural loose wet avalanches were noted reaching to Size 1.5 in the Kootenay Pass area.</span></p>
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A few loose dry avalanches up to sz 2 were observed out of steep unskiable terrain on Sunday.  One size 3 was observed today  south of the Fortress area. </span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">No recent avalanches have been reported in the region. Please post your observations to the Mountain Information Network.</span></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, natural storm and wind slab avalanches up to size 2 were observed at upper elevations from northerly aspects. Explosives control and some natural cornice failures also produced slab avalanches from slopes below up to size 3. Cornices are large, fragile and are a significant hazard, especially with daytime warming or during stormy periods. The recent storm snow will likely remain reactive, especially in wind loaded terrain features at upper elevations.</span></p><p class="p_CC664AAA"><span class="s_3FE45715">We are in a low probability, high consequence scenario for persistent slab avalanches failing on deep buried weak layers. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">Click here for more details.</span></a><span class="s_3FE45715">  </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/low-btl-danger-full-path-avalanches" target="_blank"><span class="s_B5813F7D">Click here for new Forecaster Blog. </span></a><span class="s_AA239A9B" /></p>
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</style><p class="p_CC664AAA"><span class="s_3FE45715">On Sunday, large natural and explosive controlled slab avalanches were observed. A natural cornice fall produced a size 3.5 avalanche from a SE aspect and control work continues to produce several size 3 and a size 4 avalanche that ran to ground from a NW aspect. </span></p><p class="p_CC664AAA"><span class="s_3FE45715">On Tuesday, the recent storm snow is expected to be reactive at higher elevations, especially in wind loaded terrain and on steep convex features. Cornices are large and may become weak with daytime warming or during stormy periods and have proven to still trigger very large avalanches from the slopes below. We are in a low probability, high consequence scenario for persistent slab avalanches failing on deep buried weak layers. </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/novemberfacetsmarchlphccycle" target="_blank"><span class="s_B5813F7D">Click here for more details.</span></a><span class="s_3FE45715"> </span><a id='GoToAdded' href="http://www.avalanche.ca/blogs/low-btl-danger-full-path-avalanches" target="_blank"><span class="s_B5813F7D">Click here for the Forecasters' Blog.</span></a><span class="s_AA239A9B" /></p>