Avalanche Forecast
Issued: Dec 14th, 2021 1:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
JSmith,
Avalanche Canada
Forecast strong, southerly winds on Wednesday are expected to form wind slabs on lee features at treeline and above.
Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
Summary
Confidence
High -
Weather Forecast
TUESDAY NIGHT: Cloudy with isolated flurries; 0-3 cm / Moderate, southwesterly winds / Low of -2 C / Freezing level 500 m.
WEDNESDAY: Cloudy with flurries; 3-5 cm / Strong, southerly winds / High of 3 C / Freezing level 1000 m.
THURSDAY: Mix of sun and cloud / Moderate, northwesterly winds / High of 1 C / Freezing level 500 m.
FRIDAY: Mix of sun and cloud / Light, westerly winds / High of 1 C / Freezing level 500 m.
Avalanche Summary
Small (size 1) rider triggered wind slabs were reported in this region on Monday.
Snowpack Summary
Forecast strong, southerly winds on Wednesday are expected redistribute the 10-15 cm of recent snow into wind slabs on lee features at treeline and above.
30-40 cm of recent snow has buried the early December crust layers. The snowpack is generally well-settled and strong below these layers.Â
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
- Use ridges or ribs to avoid areas of wind loaded snow.
- Avoid terrain traps where the consequence of any avalanche could be serious.
Problems
Wind Slabs
Fresh wind slabs will likely form on lee features at treeline and above on Wednesday.
Aspects: North, North East, East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 15th, 2021 1:00PM
