Avalanche Forecast
Avalanche Bulletin - Little Yoho
Please continue to avoid avalanche terrain. While natural avalanche activity has tapered, human triggering will continue to be likely. Solar releases can be expected from rocky terrain.
Avalanche Problem 1: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Avoid all avalanche terrain.
- Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.
Avalanche Problem 2: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Expect loading on lee features and new wind slab development on exposed slopes.
Travel and Terrain Advice
- If triggered the storm slabs may step down to deeper layers resulting in large avalanches.
Avalanche Summary
The bulk of the recent avalanche cycle has tapered off. Although less activity has been observed Saturday, reports of the odd size three are still coming in. All avalanche terrain is still highly suspect, and should be avoided.
Snowpack Summary
Recent storm accumulation of 30-55cm is beginning settle, forming a sportive upper snowpack. The three main mid pack concerns which are the Jan 16th, Jan 6th, and Dec.15 weak layers. These are a mix of facets, crusts and surface hoar and can be found 70cm to over 150cm deep in the snowpack and have producing very large results.
Weather Forecast
Colder temperatures will continue through Sunday into the start of the week with little precipitation in the forecast. Wind values will be at threshold for snow transport Saturday night and will die down by Sunday morning. Light cloud cover Sunday with clearing skies for Monday.
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Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.