Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible - Likely
- Size
- 1–1.5
New snow and southwest winds may form fresh, reactive wind slabs in the alpine and treeline.
Avalanche forecast
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Apr 8 – 9, 2024Avalanche Canada
Archived · expired 2 years ago
Avalanche danger
Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Highlights
Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
Avalanche problems
Confidence
High
Avalanche Summary
Explosive control on Sunday produced two size 1.5 storm slabs from high, north-facing alpine terrain in the west of the region.
No natural or rider-triggered avalanches have been reported since Saturday.
Snowpack Summary
New snow accumulates on a robust crust or moist snow at all elevations except high north-facing.
Weak faceted grains sitting on a crust formed in early February are now buried 100 to 150 cm. This layer has generally been gaining strength, however, it is still occasionally producing large avalanches at upper elevations where a supportive crust has not formed above it.
Weather Summary
Monday Night
Mostly cloudy with flurries, 2 to 15 cm of accumulation. Southwest ridgetop wind 20 to 40 km/h. Treeline temperature -4° C. Freezing level 1400 m.
Tuesday
Mostly cloudy with flurries, trace to 10 cm accumulation. Southwest ridgetop winds 30 to 50 km/h. Treeline temperature -3 °C. Freezing level 1700 m.
Wednesday
Mostly Sunny. West ridgetop winds 5 to 15 km/h. Treeline temperature reaches a high of -2 °C. Freezing level rises to 1900 m.
Thursday
A mix of sun and cloud. Southwest ridgetop winds 5 to 15 km/h. Treeline temperature reaches a high of 0 °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.