Avalanche forecast

Jasper

Mar 8 – 9, 2022
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Archived · expired 5 years ago

Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

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.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2

    Be on the lookout for reverse loading due to Northerly wind. Wind slabs may be forming in abnormal locations.

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

Regions covered