Avalanche Forecast
Issued: Nov 24th, 2015 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
ian jackson,
Avalanche Canada
Watch for fresh windslabs in lee and cross-loaded terrain in the alpine and at treeline. Even a small avalanche in exposed terrain could have high consequences. Overall, a great start to the season in the Rockies, though!
Summary
Weather Forecast
An arctic high pressure system has moved in and we are under the influence of N/ NE flow for the foreseeable future. This means cold temps (highs -5 to -10 and lows of -15 to -20 in the valley bottoms), with clear skies and generally light N/ NE winds. Expect some moderate gusts which will make those temperatures feel cold!
Snowpack Summary
10-15 cm of storm snow from Monday overnight overlies widespread wind effected terrain above treeline, and a soft well settled snowpack below treeline. The new snow is being blown into fresh windslabs in isolated leeward and crossloaded areas at treeline and in the alpine, typically 20-30 cm thick and they may trigger easily.
Avalanche Summary
Sunshine and Lake Louise ski hills were reporting fresh windslabs reactive to ski cuts in alpine and treeline terrain today. These were generally small, and 10- 30 cm deep in lee and crossloaded terrain.
Confidence
Problems
Wind Slabs
Fresh snow from Mon night and Tues has been blown into windslabs in lee and cross loaded areas. Any avalanches should remain relatively small - but watch out for fresh windslabs in terrain with consequences.
- Use caution in lee areas. Recent wind loading have created wind slabs.
- Be careful with wind loaded pockets while approaching and climbing ice routes.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 25th, 2015 4:00PM
