Avalanche Forecast
Avalanche Bulletin - Banff, Yoho, and Kootenay National Parks
Watch gullied terrain and terrain traps if it gets sunny. Watch for surface slabs and near surface slabs in large openings and areas of high consequence.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Avalanche Problem 2: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Concern still exists for last weeks storm snow (20-30 cm) where it overlies a crust on solar aspects. Some recent avalanches have been observed on this interface.
Avalanche Summary
Avalanches activity has tapered today, no reports of back country observations. Local ski patrol triggered surface slabs to size 2.5 with large explosive out of extreme terrain.
Snowpack Summary
Cooler temps this weekend will keep lower elevation melt free crusts intact. On solar aspects this crust is present to ridgetop. Small wind slabs found in the high alpine. Concern still exists for last weeks storm snow where it sits on a buried suncrust (down 20-30 cm) on south and west aspects. Shallow snowpack areas are also still a concern.
Weather Forecast
Cooler temperatures will continue through Sunday, sky's will remain cloudy with a few breaks mid day. Snow is expected in the western part of the forecast region starting late Monday.
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Wind slabs and wind effect can be found in the alpine. Wind slabs are unlikely to release naturally but can be triggered by skiers and climbers especially near ridge crest.