Avalanche Forecast
Avalanche Bulletin - Little Yoho
The wind did not pick up as expected on Monday, however, be watchful for isolated wind slabs in lee areas. Activity has subsided on the Oct 31 layer but forecasters are still watching it closely.
Avalanche Problem 1: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Avoid shallow snowpack areas where triggering is more likely.
- Use conservative route selection, choose moderate angled and supported terrain with low consequence.
Avalanche Problem 2: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Up to 50cm of recent snow is available for transport TL and above.
Travel and Terrain Advice
- Watch for surface cracking and stiffer surface layers of snow. Avoid wind loaded terrain.
- Use caution in lee areas. Recent wind loading has created wind slabs.
Avalanche Summary
No avalanches were observed or reported today.
Snowpack Summary
Above 2500m, 60cm of snow from last week is being blown into soft windslabs in isolated areas. Below 2500m, up to 30 -50 cm of snow lies over the Nov 27th and Nov 23rd crusts. Both of these now overly the Halloween crust/ facet layer that sits 30-50cm above the ground. This lower layer presents as a facet layer above 2500m and as a crust below.
Weather Forecast
A strong high pressure system is building in the region. Temperatures are expected to be seasonal with light to moderate wind from the West.
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Natural avalanche activity has tapered, but concern remains for human triggering on the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.