Avalanche Forecast
Avalanche Bulletin - Little Yoho
Little change with the cold temperatures. Continue to watch for small avalanches in steep terrain, especially where there has been previous wind effect. Sluffing is also becoming an issue as the surface snow facets. Dress warm and enjoy the holidays!
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 areas of hard wind slab in steep alpine features.
Avalanche Problem 2: Loose Dry
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but stay aware of this in confined gullies or when skiing steep terrain.
Travel and Terrain Advice
- On steep slopes, pull over periodically or cut into a new line to manage sluffing.
- Be aware of party members below you that may be exposed to your sluffs.
Avalanche Summary
Little change on Monday. Only a few small thin wind slabs and loose dry sluffs out of steep terrain have been reported over the last couple days. These were a result of increased alpine winds, as well as ski cutting or explosive work in steep terrain at the local ski resorts.
Snowpack Summary
15-30 cm of recent storm snow is facetting quickly with the cold temperatures and starting to sluff more easily in steep terrain. Some wind effect in alpine lee areas. The Dec.15 layer of surface hoar (below 2100m) and sun crust or facets (depending on location) is down 15-30 cm and some moderate shears have been observed on this interface.
Weather Forecast
The arctic air continues to be entrenched over us for the foreseeable future. Lows will be in the low -20's with highs in the -16 to -14 range. Expect light to moderate winds from the NW with a mix of sun and cloud. A few flurries are forecast for Wednesday and Thursday but no significant accumulations are expected.
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Wind slabs are present in alpine lee areas. So far these have been small and slow to move when triggered, but they could be a concern in steep confined terrain.