Bulletin d’avalanche

Jasper

Jan 18 – 19, 2017Parks Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

Wed
Thu
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Conditions are changing in the alpine. Be cautious as you transition into wind affected terrain.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Forecasted snow amounts expected to be 10 to 30cms over the next 48 hours. New slabs expected to be touchy in lee terrain, particularly on North Easterly terrain at upper elevations.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    Concern for new snow overloading the season's weak faceted basal layers.

Weather Forecast

Precipitation to continue through the week, with amounts up to 25cm over the next 72hours. Temps cooling gradually and freezing levels sinking down to 1000m by Friday. Winds will be moderate to strong from the Southwest.

Snowpack Summary

Moist HST to 2500m ranging from 10-20cm, with heavier amounts to the South. Multiple surface and buried wind slabs overlying a variety of faceted weaknesses to ground. Extensive scouring and wind affect in the alpine.

Avalanche Summary

Only small loose slides observed out of steep rocky terrain at treeline and lower elevations. Poor visibility in the alpine today.

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes