Bulletin d’avalanche

Jasper

Mar 21 – 22, 2020Parks Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

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.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    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

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    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

Régions couvertes