Avalanche Forecast
Issued: Apr 8th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
zryan,
Avalanche Canada
Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
Summary
Confidence
High
Avalanche Summary
On Sunday, a few small (size 1) natural and skier-triggered wind slab and dry loose avalanches were reported from alpine terrain.
Looking forward to Tuesday, the avalanche problem will likely be confined to newly formed wind slabs in lee terrain features in the alpine and treeline.
Snowpack Summary
New snow accumulates on up to 20 cm of dry, settling snow. Below this, a robust crust or moist snow exists at all elevations except high north-facing.
A second crust formed in late March can also be found in the upper snowpack at variable depths depending on aspect and elevation.
Weak faceted grains sitting on a crust formed in early February are now buried 100 to 180 cm. This layer has generally been gaining strength and is unlikely to be human-triggered in areas where a supportive crust is present above it.
Weather Summary
Monday Night
Mostly cloudy with flurries, 2 to 15 cm of accumulation. Southwest ridgetop wind 30 to 50 km/h. Treeline temperature -3° C. Freezing level 1600 m.
Tuesday
Mostly cloudy with flurries, trace to 10 cm accumulation. Southwest ridgetop winds 30 to 50 km/h. Treeline temperature -1 °C. Freezing level 1900 m.
Wednesday
Mostly Sunny. West ridgetop winds 5 to 15 km/h. Treeline temperature reaches a high of 0 °C. Freezing level rises to 2100 m.
Thursday
A mix of sun and cloud. Southwest ridgetop winds 5 to 15 km/h. Treeline temperature reaches a high of +1 °C. Freezing level rises to 2300 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
- Wind slabs may be poorly bonded to the underlying crust.
Problems
Wind Slabs
New snow and southwest winds may form fresh, reactive wind slabs in the alpine and treeline.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 9th, 2024 4:00PM
