Avalanche Forecast
Avalanche Bulletin - Banff, Yoho, and Kootenay National Parks
The non-spring like conditions continue. Mainly cloudy for Friday, but there could be more solar input on the East slopes which may increase the afternoon avalanche danger.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Avalanche Problem 2: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Forecasters are still concerned about the March 15 crust which is down 25-50 cm on steeper solar aspects. There has been sporadic but regular skier and explosive triggered avalanches on this layer over the past several weeks.
Travel and Terrain Advice
- Be cautious with convexities and steep slopes on solar aspects.
Avalanche Summary
No avalanches observed or reported today.
Snowpack Summary
Some wind effect and thin wind slabs in isolated areas have been noted in the alpine. Various types of temperature crusts or moist snow found on solar aspects and found on all aspects below 2000m. The March 15 suncrust is down 25-50 cm on solar aspects and still is a concern for skier triggering.
Weather Forecast
Friday's forecast is for 5-10cm along the divide, light to moderate SW winds, and 2000m freezing levels. We could see 20-30cm by Sunday night along the divide with almost no snow in the Eastern parts (Banff).
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This wind slabs can be expected in the high alpine on lee aspects. These have been losing sensitivity over the past few days.