Avalanche Forecast
Issued: Mar 5th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
William Lawson,
Strong solar radiation Sunday, could produce increased avalanche activity on southerly aspects.
Summary
Weather Forecast
Clear weather Sunday will continue to produce strong solar outputs on southerly aspects. Freezing levels will remain near valley bottom. Increase cloud cover Monday will bring a trace a precipe and moderate to strong ridge top winds.
Snowpack Summary
5-15cm of new snow overlies a melt freeze crust from Thursdays warming, this crust can be found up to 1900m. Above 1900m, 40 cm of previous storm snow has solidified into a slab overlying the February 16 sun crust on steep southerly aspects. This combination should now be watched closely, as it produces whumphs and tests indicate propagation.
Avalanche Summary
Increased solar outputs Saturday initiated isolated loose dry activity out of extreme terrain. Evidence of recent avalanche activity on the Feb 16 persistent weak layer was observed on steep southerly aspects at treeline, producing avalanches to size 1.5.
Confidence
Problems
Persistent Slabs
This crust facet layer 30 to 40cm down has gradually developed a slab above it. Be very careful on steep treeline and alpine slopes that face south and west. When traveling in avalanche terrain It's easy to dig down and look for the layer.
- Be aware of the potential for wide propagations due to the presence of hard windslabs.
Aspects: South East, South, South West, West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 6th, 2022 4:00PM
