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Archived

Avalanche Forecast

Jan 21st, 2022–Jan 24th, 2022
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Waterton Lakes.

Temperatures may rise rapidly on Saturday with strong alpine inversions and remain high throughout the weekend.

Minimize overhead hazard wherever possible.

Weather Forecast

Sat: Cloudy with isolated flurries. Moderate west winds. Strong alpine temperature inversion. Freezing rising to alpine throughout the day.

Sun: Cloudy with isolated flurries. Moderate W winds. Strong alpine temperature inversion with temps remaining above freezing.

Mon: Cloudy with sunny periods. Light W winds. Alpine high -6. FL valley bottom.

Snowpack Summary

A hard rain crust exist on all aspects up to 2000m. Alpine surfaces range from hard windslab in lees and to bare ground. Well settled midpack. Facets above Dec 4 crust down 150-200 cm. A 20-60 cm thick Nov crust complex completes snowpack to ground.

Avalanche Summary

No new avalanches reported or observed today. Limited field observations. Thanks to everyone posting on the Mountain Information Network, keep up the great work, we really do read them.

Confidence

Freezing levels are uncertain

Avalanche Problems

Persistent Slabs

Strong alpine inversions and high freezing levels will test persistent layers and cornices in sheltered alpine features on Saturday and Sunday. Minimize overhead hazard as temps at higher elevations are likely warmer than valley bottoms.

  • Pay attention to overhead hazards like cornices which could easily trigger persistent slabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2.5 - 4