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Avalanche Forecast

Archived

Mar 7th, 2022–Mar 8th, 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.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

Moderate to strong North- Northwest wind on the Icefields Parkways has started to redistribute soft surface snow, building wind slabs in the alpine and at tree line. Be on the lookout for reverse loading due to non-typical wind direction.

Weather Forecast

Tuesday: Cloudy with sunny periods and isolated flurries. Trace precipitation. Alpine temp hight -16 C. Wind North 15-35 km/h. Freezing level valley bottom

Wed: Sunny with cloudy periods. No precipitation. Alpine high -15 C. Wind NW 10-25 km/h

Thursday: Mix of sun and cloud with isolated flurries. Trace precipitation. Alpine high -11.

Snowpack Summary

Moderate to strong NNW wind is redistributing 10-30cm of recent snow and forming fresh wind slab at tree line and above. 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 in the past 3 days.

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.