Avalanche Forecast
Issued: Feb 27th, 2015 7:43AM
The alpine rating is Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good
Weather Forecast
Clear overnight with freezing down to valley bottoms and temperatures around -10 in the alpine. Light northwest winds and clear skies with freezing levels rising to near 1200 metres on Saturday. Some cloud developing Saturday night and continuing during the day Sunday with no precipitation and light southwest winds. Cloudy with 3-5 cm of new snow and moderate northerly winds on Monday.
Avalanche Summary
No new avalanches reported.
Snowpack Summary
At higher elevations, up to 10 cm of wind-pressed snow overlies the previous variable snow surface of surface hoar, crusts, or wind affected snow depending on aspect and elevation. The "Valentine's Day" crust is just below the surface and is now strong and thick in most places. Thin isolated wind slabs may still be reactive in high elevation lee terrain, and cornices remain large and weak. 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 sun drenched slopes.
Problems
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Feb 28th, 2015 2:00PM