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Archived

Avalanche Forecast

Nov 29th, 2019–Dec 2nd, 2019
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.

Snowfall amounts from Wednesdays storm are highly variable. Areas that have enough snow to ski will likely have Windslab. The Akamina Parkway remains closed to public access due to construction.

Weather Forecast

Saturday: Sunny with cloudy periods. Light SW winds. Alpine high of -6 .

Sunday: Mix of sun and cloud.  Light to moderate SW winds. Alpine high -4

Monday: Mainly cloudy with isolated flurries. Moderate SW wind.

Snowpack Summary

Wednesday's upslope storm deposited up to 70 cm of  dry snow on the Eastern slopes of Waterton Park. Pockets of reactive windslab exist in the Alpine and at tree line. This new  windslab overlies a variety of bed surface including bare ground, old windslab and a thick melt freeze crust where snow from the late September snowfall did not melt out.

Avalanche Summary

Natural Loose Dry avalanches up to size 1.5 occurred in the front ranges during the previous storm cycle. No new avalanches observed in the past 24 h.

Confidence

Due to the number of field observations on Friday

Avalanche Problems

Wind Slabs

Any terrain with a skiable snowpack will likely have windslab.

  • 894
  • Be careful with wind loaded pockets. Be aware of wide variation in snowpack depth

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2