Avalanche Forecast
Avalanche Bulletin - Little Yoho
Watch for new windslab development from the Yoho Blow and overnight SW wind. Surface failures may be enough to trigger the Dec 15 layer lower down.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Use caution in lee areas. Recent wind loading has created wind slabs.
Avalanche Problem 2: Loose Dry
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies.
Travel and Terrain Advice
- The volume of sluffing could knock you over; choose your climb carefully and belay when exposed.
- On steep slopes, pull over periodically or cut into a new line to manage sluffing.
Avalanche Summary
A few new loose snow avalanches were observed to size 2 near the Mt. Dennis Ice Climbs. A size 2.5 observed off Mt. Stephen, likely a windslab resulting from the strong Yoho Blow outflow wind, but the fracture line was obscured.
Snowpack Summary
40-50 cm of snow sits over the Dec 15 layer which consists of surface hoar, sun crust, or facets depending on location. Easy - mod shears found on this layer. Below this the snowpack is heavily faceted with remnants of older crust's still lingering throughout, but no significant shears found in the lower pack. Some isolated windslabs near ridgetop.
Weather Forecast
Another cold day tomorrow with moderate to strong SW wind overnight. Winds should taper through the day Thursday then pick up again Friday as the high pressure ridge starts to rebuild over area. Temperatures warmer by the weekend.
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Recent snow is being moved around by the SW winds and forming fresh wind slabs in lee alpine areas. These slabs can fail on the the Dec 15 layer which is producing easy to moderate shears.