Avalanche Forecast
Issued: Feb 28th, 2015 7:40AM
The alpine rating is Persistent Slabs and Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Forecast snowfall amounts are uncertain
Weather Forecast
Cloud developing overnight combined with light southerly winds and freezing levels down to valley bottoms, and alpine temperatures around -10. Mostly cloudy on Sunday with light southwest winds and freezing levels rising up to about 1000 metres. Precipitation starting early Monday morning as cold arctic air descends from the northeast and collides with warmer moist air from the Pacific. Most areas are expected to see 5-10 cm of new snow, some areas in the southeast of the region may see enhanced snowfall.
Avalanche Summary
A skier triggered a size 1.0 steep un-supported pocket of windslab on a northwest aspect at treeline in the Selkirks.
Snowpack Summary
There is quite a bit of variability across the region in regards to new snow amounts. The surface is also variable with everything from dry new snow, loose facetted snow, windslabs, to sun crusts. There is 5-30 cm of facetted new snow and surface hoar above the mid-February crust. The late-Jan crust/surface hoar layer (up to 100 cm deep) and the mid-January surface hoar (80-120 cm deep) are generally dormant, and chances of triggering these weaknesses have decreased. However, triggering may be possible with a large input such as cornice fall, or an avalanche stepping down, especially on slopes that see a lot of sun.
Problems
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 1st, 2015 2:00PM