Avalanche Forecast
Avalanche Bulletin - Little Yoho
New snow on Sunday night has created some soft slabs. These are mostly soft and predictable, but watch out for local wind effect and deeper storm snow amounts. Ice climbers should be wary of sluffing in steep terrain!
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Use caution in lee areas. Recent wind loading has created fresh slabs.
Avalanche Problem 2: Loose Dry
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
20-30 cm of loose, dry snow fell on sunday night. It landed on very weak facets and surface hoar and will sluff easily in steep terrain. Ice climbers should pay special attention where the consequences of a sluff can be severe.
Travel and Terrain Advice
- Be cautious of sluffing in steep terrain, particularly where the debris flows into terrain traps.
Avalanche Summary
Several small size 1-1.5 natural and skiier controlled avalanches involving last nights storm snow were observed mostly in the Lake Louise Ski Hill area and backcountry.
Snowpack Summary
20-30 cm of soft storm snow now covers a mix of sun crust, facets, wind slab and surface hoar depending on the aspect and elevation. We are calling this layer the Dec. 15th layer, and it will become reactive as we get more load on it. The lower snowpack is generally facetted with no shears present.
Weather Forecast
5-10 cm is forecast to fall Tuesday afternoon, and then temperatures will drop with clearing skies on Wed and Thursday and lows into the -20's. Expect to see the winds switch from MW to SE on Tuesday morning and increase to moderate SE in the alpine.
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10-30 cms of new snow from Sunday night has formed soft slabs that are reactive in steep alpine lee areas. Touchiness will depend locally on snow amounts and wind speeds.