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Archived

Avalanche Forecast

Feb 26th, 2022–Feb 27th, 2022
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
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: Jasper.

The low rating still requires a constant evaluation of any changing conditions under foot as one travels through the mountains. Isolated terrain features may hold pockets of unstable snow as the "Low" rating defines.

Weather Forecast

Sunday will bring clouds and flurries, 4 cm of snow, -6C, and SW light gusting moderate alpine winds. Monday will be 10cm of snow, -9C, light winds, and freezing level 1500m. Tuesday hopefully brings 13cm of snow, -7C and light gusting moderate West winds. Flurries will happen Wednesday, -7C, light winds, and 1800m freezing level.

Snowpack Summary

Wind slabs over previous hard surfaces which is a solid well bridged mid-pack. A weak temperature crust is buried approximately 10-20cm down and up to 1900m on all aspects which then a sun crust on solar aspects up to 2800m. Basal facets & depth hoar are typically located near the ground.

Avalanche Summary

Nothing new was observed on Friday around Marmot Basin. Maligne and Columbia Icefield areas on Saturday noted nothing new of significance. Both days had excellent visibility.

Confidence

Due to the number and quality of field observations on Sunday

Avalanche Problems

Wind Slabs

Wind slabs are on a variety of surfaces including previous hard layers and a temperature crust or sun crust 10-20cm down. Travelers are starting to successfully venture into large committing features yet watch for unstable snow on isolated features.

  • Watch hollow sounds on unsupported windslabs.
  • The stable avalanche conditions still require careful decision making.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2