Avalanche Forecast
Avalanche Bulletin - Little Yoho
Sheltered areas have some good skiing and we have not seen much recent avalanche activity...but watch for wind slabs at higher elevations and stay a bit wary of the mid pack surface hoar layers at treeline in Little Yoho.
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.
- Watch for shooting cracks or stiffer feeling snow. Avoid areas that appear wind loaded.
Avalanche Problem 2: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
A strong upper snowpack overlies three weak layers in the mid snowpack. All are a mix of sun crust, surface hoar and facets depending on location. We have not had any recent avalanche activity on these layers but keep them in mind in large terrain.
Travel and Terrain Advice
- Ride large slopes one at a time and spot your partners from safe locations.
Avalanche Summary
Reports of thin wind slabs triggered by ski cutting and explosives in lee areas at the local ski resorts. No other recent avalanche observations in the Little Yoho region.
Snowpack Summary
A few cm of new snow Sunday night. Wind effect in open areas at treeline and above with faceted surface snow below treeline. Three mid-pack weak layers of surface hoar and/or facets are down 100-130cm and gaining strength, but are worth keeping in mind on bigger slopes. Thin snowpack areas are facetting and weakening with the cold temperatures.
Weather Forecast
The forecast is for periods of snow starting on Monday night and continued flurries through Tuesday and Wednesday with total accumulations of up to 10 cm. Temperatures should stay in the -8 to -15 range at treeline and winds will be moderate to strong out of the West, possibly easing off on Wednesday.
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Hard wind slabs exist in lee areas in the alpine. While they may not be very thick or particularly touchy, they certainly have the potential to carry you into an undesirable location (cliffs/terrain traps) if triggered in steep terrain.