Avalanche Forecast
Issued: Mar 7th, 2024 3:30PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Persistent Slabs and Deep Persistent Slabs.
matt,
Avalanche Canada
Beautiful weather for a ski tour or snowshoe loop over the next couple of days. It will remain important to limit overhead exposure and choose very conservative terrain while our snow pack adjusts.
A Special Public Avalanche Warning is in effect and has been extended. Click the red SPAW link for details.
Summary
Confidence
Avalanche Summary
Natural activity has continued from yesterday to today. Most new avalanches have been in the high alpine, and with impressive propagation. Mt Shark had a large avalanche with a crown well over 1km. Forecasters also witnessed a pair of skiers kick out a sz1.5 windslab today in Tryste Chutes.
Snowpack Summary
No new snow overnight. Fresh windslabs from yesterday and the day before are evident in the alpine and treeline. Natural avalanche activity has tapered, but there's still new avalanches occurring. Most are in steep, rocky alpine terrain. Only minor settlement yesterday, likely due to the fluctuating temperatures and little new snow.
Weather Summary
Friday will be very similar to today. Thin cloud for most of the day, but still more or less blue skies for the day. Temps will start cold at -19, but warm to about -3. Winds will be light with the occasional gust in the afternoon.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Potential for wide propagation exists, fresh slabs may rest on surface hoar, facets and/or crust.
- Remote triggering is a concern, watch out for adjacent and overhead slopes.
- If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
Problems
Wind Slabs
New slabs, old slabs, buried slabs, laminated slabs...you name it and we have it. Watch wind loading carefully.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
New snow is overloading the Feb 2nd persistent weak layer now buried 70 100cm deep. This layer has facets above and below the crust. Remote triggering is a strong possibility.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Deep Persistent Slabs
Avalanches may step down to the weeker deep basal layers.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 8th, 2024 3:00PM
