Avalog Join
Archived

Avalanche Forecast

Dec 2nd, 2017–Dec 3rd, 2017
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Purcells.

Snow from recent storms will remain reactive on wind-loaded terrain features.

Confidence

Moderate - Wind speed and direction is uncertain

Weather Forecast

SUNDAY: 4-8 cm of snow overnight then gradual clearing throughout the day, light northwest wind, alpine temperatures around -10 C.MONDAY: Mix of sun and cloud, light to moderate northwest wind, alpine temperatures around -10 C.TUESDAY: Mostly sunny, light wind, alpine temperatures warming to -7 C.

Avalanche Summary

On Saturday, several size 1 wind slabs were triggered with explosives in the Golden and Invermere areas. There are no recent reports of natural or human triggered avalanches, but observations are limited. Please submit to the Mountain Information Network (MIN).

Snowpack Summary

Recent storms delivered 20-40 cm, with deeper wind deposits at higher elevations. The new snow sits above various crusts and moist snow left over from the warm weather in late November. Two deeper layers have been reported including the November 10 surface hoar layer down 80 cm and the Halloween crust down 100 cm. Information on the reactivity of these layers is limited. The average snow depth is over 150 cm in the alpine, 80-150 cm at treeline, and decreases rapidly below treeline where the primary hazards are rocks, stumps, and open creeks.

Avalanche Problems

Wind Slabs

Wind and snow has formed small reactive wind slabs on the downwind side of ridges and gullies.
Be cautious as you transition into wind affected terrain.Watch for signs of instability such as whumpfing, cracking or recent natural avalanches.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2