Avalanche Forecast
Issued: Apr 22nd, 2013 4:34PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
brian webster,
Parks Canada
Summary
Weather Forecast
Mixed sun and cloud is for Tuesday and Wednesday with some isolated flurries on Tuesday. Freezing levels will be around 1800 m with good recovery overnight.
Snowpack Summary
Cooler conditions should keep the crust solid for much of the day. Recent snow has created wind slabs just below ridge crests up to 30-40 cm thick. These slabs have been more touchy on southerly aspects where they overly a crust, but could be triggered on northerly aspects as well. Solar effect will loosen up the recent new snow on steeper terrain.
Avalanche Summary
Several small skier triggered windslabs up to size 1.5 have been reported over the last few days. These have been triggered on steep terrain just below ridgecrests. Storm snow over crust is the main ingredient.
Confidence
The weather pattern is stable
Problems
Wind Slabs
Moderate winds have created areas of thin wind slabs in open areas above 2200 m. These slabs were more sensitive to triggering on southerly aspects where they overlie a smooth crust, but are also a concern on northerly aspects.
Be careful with wind loaded pockets
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 23rd, 2013 4:00PM
