Bulletin d’avalanche

Waterton Lakes

Feb 26 – Mar 1, 2019Parks Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Wed
Thu
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Highly variable upper snowpack requires cautious terrain evaluation at all elevations.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Watch for reverse loading with recent N-E Winds.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2.5
    Recent snow has been enough to create a  windslab over deep instabilities below treeline where the snowpack is shallow and weak, and melt freeze crusts have been preserved.

Weather Forecast

Tuesday: A mix of sun and cloud with scattered flurries in the AM.  Moderate NE winds. Alpine High -20Wednesday: Cloudy with sunny periods. Moderate NE winds. Alpine High - 11Thursday: Mostly cloudy with scattered flurries. Moderate E winds. Alpine high -14

Snowpack Summary

The upper snowpack is highly variable with a variety of Windslab and Wind affect in all but the most protected areas. The midpack remains strong in deep snowpack areas, but is acting as a slab above deep weak layers in shallower areas that is reactive skiers mainly at below treeline elevations where melt freeze crusts have been preserved.

Avalanche Summary

No new avalanche activity observed in the past 24h.

Confidence

Wind effect is extremely variable

Régions couvertes