Avalanche Forecast
Issued: Dec 6th, 2015 8:06AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
bcorrigan,
Avalanche Canada
Incoming storms have pushed the danger ratings to high. Use conservative travel techniques and avoid all risky terrain.If you have observations, consider sharing them through the MIN
Summary
Confidence
Moderate - Due to the number and quality of field observations
Weather Forecast
A strong westerly flow will continue to bring Pacific moisture and storm pulses into the area through next week. Each successive system will bring warmer air, pushing freezing levels up to to 1700m by Monday afternoon, dropping briefly Tuesday morning, then rise again to 2300m by Tuesday afternoon. The Tuesday storm is forecast to bring 10 to 20cm of snow to upper elevations of the forecast region before tapering off in the late afternoon. The next weaker pulse should arrive on Wednesday morning.
Avalanche Summary
A number of size 1.5 natural, cornice failures were reported earlier in the week observed in the Duffey lake region. No other reports of avalanches
Snowpack Summary
The snowpack varies widely across the forecast region. The Duffey Lake area has received the most snow, and the most rain during the recent storms, as well as the highest freezing levels. The Coquihalla has a shallower snowpack with slightly cooler temperatures. Storm slabs of varying depths are developing above a mixture of old surfaces left behind after the recent high pressure. We have not had many observations from this region but generally speaking, warm temperatures should contribute to a well settled snowpack, if you are out in the mountains please submit your observations to the Mountain Information Network.
Problems
Storm Slabs
Continued precipitation is building the storm slab.
Minimize exposure during periods of heavy loading from new snow, wind.>Avoid freshly wind loaded features.>Use ridges or ribs to avoid pockets of wind loaded snow.>
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 7th, 2015 2:00PM
