Avalanche Forecast
Issued: Apr 23rd, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
jsmith,
Avalanche Canada
Wind slabs may remain in isolated locations on steep slopes in the alpine.
Assess for slabs before entering high consequence terrain.
Summary
Confidence
Avalanche Summary
On Monday, a large cornice failure triggered a slab, entrained mass, and ended up as a size 2.5 wet loose avalanche.
Field observations are currently very limited in this region. Please consider sharing your observations to the Mountain Information Network.
Snowpack Summary
Northerly alpine slopes hold 10 to 20 cm of settled storm snow that overlies a hard melt-freeze crust. Isolated wind slabs may linger in steep northerly alpine terrain. All other aspects and everywhere below treeline have a hard surface crust.
The remainder of the upper snowpack is a mix of hard snow and crusts. The lower snowpack contains old weak layers that are currently dormant.
Weather Summary
Tuesday night
Clear skies. 10 to 20 km/h southwest ridgetop wind. Treeline temperature +3 °C. Freezing level 2300 m.
Wednesday
Mix of sun and cloud. 10 to 20 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2200 m.
Thursday
Mix of sun and cloud. 10 to 20 km/h west ridgetop wind. Treeline temperature +2 °C. Freezing level 2200 m.
Friday
Mostly cloudy. 10 to 20 km/h southeast ridgetop wind. Treeline temperature +1 °C. Freezing level 2100 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
- Pay attention to cornices and give them a wide berth when traveling on or below ridges.
- Be alert to conditions that change with aspect and elevation.
- Back off slopes as the surface becomes moist or wet with rising temperatures.
Problems
Wind Slabs
Wind slabs may linger on shaded aspects in steep, alpine terrain. Assess for slabs prior to entering high-consequence terrain.
Aspects: North, North East, East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 24th, 2024 4:00PM
