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Avalanche Forecast

Archived

Mar 6th, 2022–Mar 7th, 2022

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

Good skiing can still be found out there but increasing Northerly winds on Monday will lead to a more widespread wind slab problem. 

Weather Forecast

Monday: A mix of sun & cloud with isolated flurries and trace precipitation. Alpine temp high -8. Wind NW 15km/h gusting to 45. Freezing level valley bottom.

Tuesday: A mix of sun & cloud. No precipitation. Alpine temp hight -17 C. Wind W 10-30 km/h. Freezing level valley bottom

Wed: Sunny with cloudy periods. Alpine high -87 C. Wind N 10-30 km/h

Snowpack Summary

A weak sun crust forming on solar aspects. 10-30cm of recent snow is settling well and has only been a concern in exposed areas where wind slab development has occurred. A crust down 25-40cm is decomposing but can still be found below 2500m on south aspects. A widespread weak facet layer still lurks at the bottom of the snowpack in all areas.

Avalanche Summary

No new avalanche activity observed on the Icefields Parkway or Maligne Lake Road today.

One natural size 2 cornice avalanche was observed on Thursday on Churchill. This cornice failure entrained loose dry snow below.

Confidence

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.