Avalanche Forecast
Issued: Dec 6th, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Loose Dry.
Lucas Gurba,
Despite low snowpack, use caution when exposing yourself to overhead hazard. Loose dry avalanches observed impacting ice climbing routes.
Summary
Weather Forecast
Tuesday: Mix of sun and cloud. Winds increasing in PM flurries beginning after dinner. Alpine temps High -1. FL valley bottom.
Wednesday: Cloudy with 10cm of snow. Alpine temps High -3 . Strong to Extreme SW winds. FL 1600m.
Thursday: Cloudy with chance of flurries. Alpine temps High - 12. Moderate SW winds. FL valley bottom.
Snowpack Summary
Saturday's 20 cm of snow is being redistributed by moderate SW winds, creating windslabs in lees at ALP and TL. Mid and lower snowpack is now consolidated. November melt freeze crusts are 20-30cm above ground. Under 1800m is below threshold. Snowpack at tree line is 70-100cm deep.
Avalanche Summary
Two Na loose dry avalanches observed to size 1.5, out of steep alpine headwall above Wall Lake. Observations in the area are very limited, if you go out into the mountains please share your observations on the Mountain Information Network.
Confidence
Due to the number and quality of field observations
Problems
Wind Slabs
20 cm new snow and moderate SW winds have created windslab in lees at alpine and treeline.
- Use caution in lee areas. Recent wind loading have created wind slabs.
- Early season hazards such as rocks, trees and stumps are very prevalent
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
20 cm unconsolidated snow not bonding to rain crust from Nov 30. Watch for sluffing in steep terrain.
- Be careful of loose dry power sluffing in steep, confined or exposed terrain.
- Be careful with wind loaded pockets while approaching and climbing ice routes.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 7th, 2021 4:00PM
