Avalanche Forecast
Issued: Apr 19th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Loose Wet.
JSmith,
Avalanche Canada
20-35 cm of recent snow and strong southeasterly winds have formed wind slabs that may remain reactive to human triggers; especially below alpine ridgetops.
Use ridges or ribs to avoid areas of wind loaded snow.
Summary
Confidence
Weather Forecast
Tuesday night: Mostly clear / Light southeast wind / Low of -4 / Freezing level 700 m.
Wednesday: Mix of sun and cloud / Strong southeast wind / High of 5 / Freezing level 1200 m.
Thursday: Mix of sun and cloud with isolate flurries; 0-5 cm / Light southeast wind / High of 7 / Freezing level 1400 m.
Friday: Mix of sun and cloud / Light southeast wind / High of 9 / Freezing level 1600 m.
Avalanche Summary
A natural storm slab avalanche cycle up to size 1.5 occurred on Monday. Reports suggest these avalanches were primarily in the alpine on northerly aspects loaded by the wind.
We currently have very limited avalanche observation data from this region.
Please consider posting your observations to the Mountain Information Network (MIN). Photos of current conditions and avalanches are the most helpful.
Snowpack Summary
20-35 cm of recent snow and strong southeasterly winds have formed wind slabs that may remain reactive to human triggers; especially below alpine ridgetops.
The recent snow is sitting on a variety of hard snow surfaces, including crusts and wind scoured snow. Below this, there are several crusts in the upper snowpack, but they are unlikely to be a concern in most areas until the next significant warming event.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
- Use ridges or ribs to avoid areas of wind loaded snow.
- Back off slopes as the surface becomes moist or wet with rising temperatures.
Problems
Wind Slabs
20-35 cm of recent snow and strong southeasterly winds have formed wind slabs that may remain reactive to human triggers; especially below alpine ridgetops.
Aspects: North, North East, East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
Wet loose avalanches are likely when the sun comes out.
Avoid large, steep slopes that are in the sunshine.
Aspects: East, South East, South, South West, West.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Apr 20th, 2022 4:00PM
