Avalanche Forecast
Avalanche Bulletin - Jasper National Park
A structurally weak snowpack making any travel, "deeply troubling" in uncompacted terrain, especially below treeline.
The persistent weakness is mostly found at or near treeline.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Best conditions on sheltered northerly aspects.
Avalanche Problem 2: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
A cold, facetting, and structurally weak slab up to 80cm thick overlies: faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts (on steep S and W aspects).
Travel and Terrain Advice
- Be wary of slopes that did not previously avalanche.
Avalanche Summary
No new avalanche activity observed or reported.
Snowpack Summary
Much of the regional snowpack is losing support and, facetting after two weeks of cold, dry weather. Wind slabs and extensive wind effect is found in all open areas. The upper snowpack is a 50 to 80 cm weakening slab, over the seasonally persistent instability.
Weather Forecast
The forecast was showing real meteorological potential for a good, late winter storm. Sadly, all the moisture has been sucked dry from the region so local snowfall amounts over the next 36 hours are expected to be light. Thankfully, it will remain cold...
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Expect hardslabs in the alpine and at treeline. The cold has reduced the tension in these but caution is still warranted.