Avalanche forecast

Jasper

Mar 21 – 22, 2020Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Mon
Tue
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low

Highlights

Expect freshly formed wind slabs in the alpine and open tree line features. Don't let the fresh snow entice you into getting into bigger terrain. The Medical and emergency services are stretched thin.

Avalanche problems

  • Wind Slabs

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

    As the snow falls, it will be sitting on a variety of surfaces, from Melt freeze crusts to Scoured wind hammered and sastrugi. The bond will depend on the temperatures during the storm.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3.5

    This problem will require a large trigger, thin spots, increased loading or rapid day time warming.

Weather Forecast

Sun: Mostly cloudy sky's 4cm snow accompanied by gusty 50km/h winds out of the SW

Mon: SNOW! 15cm High -6 Gusty winds continue to 40km/h out of the SW

Tues: An additional 7cm of snow. HIgh -10 With light winds.

More detailed forecast at: Mountain weather forecast

Snowpack Summary

A supportive Melt freeze crust now exists on all Solar aspects to Alpine elevation. Scoured from previous winds. Old hard slabs exists in the alpine and open tree line. More confidence in the southern snowpack. Cornices remain an overhead hazard,

Avalanche Summary

2 Sz 1.5 Wet slab avalanches observed that hit the highway (93s) last night due to solar warming.

Confidence

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

Regions covered