Avalanche Forecast
Issued: Feb 24th, 2020 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Adam Greenberg,
Parks Canada
10-20cm of recent storm snow has fallen on a variety of surfaces, and slabs will become increasingly reactive with sun and strong winds on Tuesday.
Summary
Weather Forecast
Tuesday: Sun and cloud with isolated flurries, and moderate SW ridgetop winds. Alpine high -9 with an inversion settling in overnight.
Wednesday: Similar to Tuesday with strong NW winds at ridgetop
Thursday: Mainly cloudy with flurries, continued strong NW winds and a high of -7.
Snowpack Summary
10-20cm of low density new snow sits on a variety of wind affected surfaces including previous windslab, suncrusts and the February 1 melt freeze crust, which exists up to approx 2100m. As winds increase this new snow will be blown into windslabs in lee areas. The midpack is strong, though weaker basal facets can be found in thin areas.
Avalanche Summary
Neighbouring operations reported skier triggered avalanches to size 1 in the new storm snow on Sunday.
Confidence
Problems
Storm Slabs
15-25cm of new snow paired with increasing SW-NW winds and through the forecast period will create reactive slabs in the alpine and treeline, especially in lee areas.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Use caution in alpine and open treeline lees. Recent snowfall has created storm slabs.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 27th, 2020 4:00PM
