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Archived

Avalanche Forecast

Feb 26th, 2022–Mar 1st, 2022
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Waterton Lakes.

Extreme NW and SW winds have are cross loading slopes and creating hard windslab in lees.

Weather Forecast

Sunday: Cloudy with scattered flurries. Strong SW winds at ridgetop. Alpine high -5. Freezing levels 1200m.

Monday: Cloudy with flurries, amounting to 15 cm. Strong SW ridgetop winds. Alpine high -1. Freezing levels 1800m.

Tuesday: Cloudy with flurries, amounting to 10 cm. Moderate SW winds gusting extreme. Alpine high -1. Freezing levels 1900m.

Snowpack Summary

Strong to extreme winds have formed hard windslabs 10-30cm deep. This overlies pressed surfaces and old hard windslab 10-30 cm deep, or Feb crust. Feb 15 crust is 1 cm thick and exists to tree line all aspects and higher on solar aspects. Well settled midpack. Facets above Dec 4 crust, beginning to break down, buried 150-200 cm.

Avalanche Summary

A few natural wind slab avalanches have been reported in the park up to sz 2 this week. Thanks for the great observations on the Mountain Information Network, we love seeing your adventures.

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Wind Slabs

Winds of variable direction have formed slabs in both standard and reverse loaded lees.

  • Avoid steep lee and cross-loaded slopes

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2