Avalanche Forecast
Issued: Mar 25th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
jsmith,
Avalanche Canada
10-20 cm of recent snow and light to moderate southwesterly wind may have formed small wind slabs on lee features below alpine ridgetops.
Carefully evaluate steep lines for wind slabs.
Summary
Confidence
Avalanche Summary
Several rider triggered size 1 wind slab avalanches were reported on lee aspects at upper elevations on Friday.
If you head out in the backcountry, let us know what you are seeing by submitting a report to the Mountain Information Network.
Snowpack Summary
10-20 cm of recent snow and light to moderate southwesterly wind may have formed small wind slabs on lee features at upper elevations.
Below the recent snow is a melt-freeze crust, existing on all aspects at treeline and below. The crust extends to mountain tops on sunny aspects. In north facing high alpine terrain the surface snow may have remained cold and dry.
The mid and lower snowpack consists of a number of old crusts and facetted snow that continue to be monitored, particularly in shallow snowpack areas.
Weather Summary
Saturday Night
Mostly cloudy / 10 km/h north ridgetop wind / Low temperature at treeline around -7 C / Freezing level valley bottom
Sunday
Mostly cloudy / 10 km/h northwest ridgetop wind / High temperature at treeline around -7 C / Freezing level 1200 m
Monday
Sunny / 20 km/h east ridgetop wind / High temperature at treeline around -4 C / Freezing level 1600 m
Tuesday
Sunny / 50 km/h east ridgetop wind / High temperature at treeline around -3 C / Freezing level 1700 m
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Carefully evaluate steep lines for wind slabs.
- Avoid exposure to slopes that have cornices overhead.
- When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
Problems
Wind Slabs
10-20 cm of recent snow and light to moderate southwesterly wind may have formed small wind slabs on lee features at upper elevations.
Aspects: North, North East, East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 26th, 2023 4:00PM
