Bulletin d’avalanche

Waterton Lakes

Feb 27 – Mar 2, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

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

Extreme NW and SW winds have are cross loading slopes and creating hard windslab in lees.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Winds of variable direction have formed slabs in both standard and reverse loaded lees.

Weather Forecast

Sunday: Cloudy with scattered flurries. Strong SW winds at ridgetop. Alpine high -5. Freezing levels 1200m.

Monday: Cloudy with flurries, amounting to 15 cm. Strong SW ridgetop winds. Alpine high -1. Freezing levels 1800m.

Tuesday: Cloudy with flurries, amounting to 10 cm. Moderate SW winds gusting extreme. Alpine high -1. Freezing levels 1900m.

Snowpack Summary

Strong to extreme winds have formed hard windslabs 10-30cm deep. This overlies pressed surfaces and old hard windslab 10-30 cm deep, or Feb crust. Feb 15 crust is 1 cm thick and exists to tree line all aspects and higher on solar aspects. Well settled midpack. Facets above Dec 4 crust, beginning to break down, buried 150-200 cm.

Avalanche Summary

A few natural wind slab avalanches have been reported in the park up to sz 2 this week. Thanks for the great observations on the Mountain Information Network, we love seeing your adventures.

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes