Avalanche Forecast
Issued: Feb 8th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
mbender,
Avalanche Canada
New snow falling earlier this week combined with wind has increased the likelihood of triggering storm and wind slabs in the alpine and treeline.
Summary
Confidence
Moderate
Avalanche Summary
On Tuesday and Wednesday there were reports of several explosives controlled storm slab avalanches to size 2.5 in the alpine. There also reports of a few skier triggered storm snow avalanches to size 1 and 1.5.
On Monday there were reports of windslab avalanches in the alpine and tree line to size 1.5 and loose dry avalanches from steep terrain to size 1. There was also a MIN report of two size 2-2.5 cornice triggered avalanches in the alpine.
Please continue to share any observations or photos on the Mountain Information Network.
Snowpack Summary
10 to 30 cm of new snow is likely being redistributed by moderate to strong west and southwest winds. This overlies previously formed wind slabs and/or a melt-freeze crust below 1900m.
The mid-pack is consolidated in the Lizard Range with a 10-20cm thick frozen crust buried 70 to 90 cm.
Weather Summary
Wednesday Night
Mostly cloudy with clear periods. Light to moderate west and southwest ridgetop wind. Treeline temperature around -8 °C. Freezing level at valley bottom.
Thursday
Mix of sun and cloud. Moderate southwest ridgetop wind. Treeline temperature around -4 °C. Freezing level rising to 1400m.
Friday
Mainly cloudy with scattered flurries, accumulation 3-5cm. Moderate to strong southwest ridgetop wind. Treeline temperature around -3 ºC. Freezing level rising to 1500m.
Saturday
Mainly cloudy with isolated flurries. Light to moderate west ridgetop wind. Treeline temperature around -4 ºC.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
- Continue to make conservative terrain choices while the storm snow settles and stabilizes.
Problems
Storm Slabs
20-30 cm of new snow may be reactive to the weight of a rider. Deepest deposits may be found in lee terrain where west and southwest wind has begun to transport the new snow.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 9th, 2023 4:00PM
