Avalanche Forecast
Issued: Mar 19th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
zryan,
Avalanche Canada
Wind slab avalanches are possible at upper elevations. Pay attention to changing conditions with elevation and aspect.
Summary
Confidence
Moderate - Forecast precipitation (either snow or rain) amounts are uncertain.
Weather Forecast
SATURDAY NIGHT: Snowing, trace to 10 cm of accumulation. Moderate to strong westerly winds. 1500 m freezing level dropping to 500 m.
SUNDAY: Partially cloudy with the potential for scattered flurries. Moderate to strong westerly winds. Freezing level rising to 1500 m in the afternoon.
MONDAY: Cloudy with light flurries. Moderate to strong westerly winds. Freezing level rising to 2000 m in the afternoon.
TUESDAY: Partially cloudy. Moderate to strong westerly winds. Freezing level rising to 3000 m in the afternoon.
Avalanche Summary
Wind slab avalanches will be possible in the alpine and treeline on Sunday.Â
A few large wind slab avalanches occurred in alpine terrain on Tuesday (size 2 to 3), otherwise, avalanche activity since last weekend has been limited to small wind slab and dry loose avalanches (size 1).
Snowpack Summary
Strong southwest wind has impacted surface snow conditions at upper elevations and built windslab in lee areas. The surface is moist and crusty below around 1800 m. The upper snowpack contains several crust layers, and the snow is well bonded to these crusts.
Terrain and Travel
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Use ridges or ribs to avoid areas of wind loaded snow.
- Be alert to conditions that change with aspect and elevation.
Problems
Wind Slabs
Expect to find wind-loaded features that may be reactive to human triggers as new snow and westerly winds create wind slabs in lee features in the alpine and treeline.
Cornices may have grown significantly in the past two weeks. Give them a wide berth when travelling on ridge-lines and minimize overhead exposure to large cornices.
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 20th, 2022 4:00PM
