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Archived

Avalanche Forecast

Dec 1st, 2015–Dec 4th, 2015
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Waterton Lakes.

Weather Forecast

Strong south winds continuing through Thursday.  With the temperature inversion of the past couple of days having dissipated, temperatures are forecast to increase to above freezing overnight in the valley bottoms but remain relatively cool in the alpine. 

Snowpack Summary

Moderate to strong south west winds at ridgetop are building fresh windslabs in lee areas and scouring exposed ridgecrests back down to the November 17th melt freeze crust. Recent surface hoar growth of up to 10mm in the valley bottoms. Middle and lower snowpack are generally well settled with no notable weak layers.

Avalanche Summary

No new avalanche activity has been observed or reported.

Confidence

Avalanche Problems

Wind Slabs

Use caution in lee areas. Recent wind loading have created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2