Avalanche forecast

Jasper

Jan 9 – 10, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
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Highlights

Winds gusting 100km/hr at Icefields today. Expecting warm storm to arrive Sunday night into Monday afternoon. Freezing level 1500m. Rain at lower elevations with snow higher up and forecasted 130km/hr winds at 3000m may overload some slopes.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–3
    Extreme winds at the Icefields is redistributing the storm snow. Trigger spots are shallow locations. Initiating could release a deep slab. Evaluate local wind effect as directions have been variable. Storm arriving tonight will add further load.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–4
    Friday's explosives released size 3's to ground. Midpack strength is bridging this layer from human triggering but the potential exists. Consequences would be severe. Natural activity has tapered off but may increase with tonight's storm.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Monday

Regions covered