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Archived

Avalanche Forecast

Apr 21st, 2021–Apr 24th, 2021
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Waterton Lakes.

Temperatures are forecast to drop with 5-10cm of new snow over the next 3 days. Loose dry avalanches are the primary concern as new snow will sit over a thick crust.

Weather Forecast

Thurs: Cloudy with scattered flurries. 5 cm of snow. Light NE wind. Freezing level 1500m

Fri: Cloudy with sunny periods. Light- moderate NE wind

Sat: Flurries. 7 cm of snow.

Avalanche Canada's Mountain Weather Forecast is a great regional-scale resource for up-to-date weather information. SPOTWX is a good resource for local scale weather forecasts.

Snowpack Summary

5-10cm of new snow is expected Thurs - Sat. This fresh snow will fall over a supportive crust that exists to ridgetop except on high north faces. Overall, the snowpack is well consolidated but cornices and glide cracks have grown recently and should be given a wide birth.

Avalanche Summary

Please consider submitting a MIN report if you see any avalanches.

Confidence

Avalanche Problems

Loose Dry

New snow sits over a firm crust making it easy to trigger dry loose avalanches in steep terrain.

  • Be careful of loose dry power sluffing in steep terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 1.5

Cornices

  • Pay attention to overhead hazards like cornices which could trigger slabs or larger sluffs.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2.5