Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
Newly formed wind slabs may be found in lee terrain features.
Avalanche forecast
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Apr 22 – 23, 2025Avalanche Canada
Archived · expired last year
Avalanche danger
Thu
Fri
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
Highlights
Assess for slabs in lee features prior to entering high-consequence terrain.
Avalanche problems
Avalanche Summary
We haven't received any reports of avalanche activity on this region.
Please consider sharing your observations to the Mountain Information Network.
Confidence
Moderate
Snowpack Summary
Small amounts of new snow will fall onto a hard melt-freeze crust everywhere except for high-elevation northerly aspects, where 15 cm of soft and dry snow prevails. Southwest wind will redeposit snow into lee terrain features.
There are no deeper layers of concern at this time.
Weather Summary
Tuesday Night
Cloudy with 2 to 5 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 900 m.
Wednesday
Mostly cloudy with 0 to 1 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1300 m.
Thursday
Partly cloudy. 20 to 30 km/h south ridgetop wind. Treeline temperature +5 °C. Freezing level 1800 m.
Friday
Mostly cloudy with 1 to 3 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 1500 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
- Be alert to conditions that change with elevation, aspect, and exposure to wind.
- Pay attention to cornices and give them a wide berth when traveling on or below ridges.