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Avalanche Forecast

Archived

Feb 26th, 2022–Feb 27th, 2022

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

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

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.