Avalanche Forecast
Regions: Little Yoho.
Enjoy the great ski conditions over the Christmas Holidays!
Weather Forecast
A westerly flow with light alpine winds continues through Tuesday and Wednesday. Expect clearing skies and only trace amounts of snow. Temps will drop with highs near -4'C and lows of -17'C at tree line on Tuesday.
Snowpack Summary
10-20cm of recent snow with Light to Moderate SW winds has formed isolated wind slabs in immediate lee areas in the alpine. The Dec 3 surface hoar is 40 to 70cm deep. Shears persist on this layer in some locations between 1700 and 2150m, however it is becoming less reactive in most places.
Avalanche Summary
Some small loose dry avalanches have been observed in very steep alpine terrain. Local ski areas were able to trigger small wind slabs up to size 1 in the alpine with avalanche control. No new natural slab avalanches have been observed.
Confidence
Due to the number of field observations
Avalanche Problems
Wind Slabs
Isolated slabs soft slabs are present in immediate lee areas in the alpine. Fragile cornices have also been reported.
- Use safe ski cutting techniques before entering ski run.
- Use caution in lee areas. Recent wind loading has created wind slabs.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood: Unlikely - Possible
Expected Size: 1 - 2
Persistent Slabs
The slab above this layer has not been very reactive recently however snow pack tests continue to produce sudden shears in some areas. Dig down to identify and test this layer before committing to in steep, open or convex terrain below tree line.
- Use caution on open slopes and convex rolls at treeline where buried surface hoar may be preserved.
- Dig down to find and test weak layers before committing to a line.
Aspects: All aspects.
Elevations: Alpine.
Likelihood: Unlikely - Possible
Expected Size: 1 - 2