Bulletin d’avalanche

Waterton Lakes

Feb 25 – 28, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Expect to find windslab in new places as winds continue to switch between NW and SW.

By the end of the forecast period a return to X SW winds and warm temps.

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.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

    This problem still exists in steep sheltered locations.

Weather Forecast

Friday: Clear skies and an alpine high -10. Winds L from the NW

Saturday: Temps rising to -5 with clear skies in the morning and cloud in the afternoon. Winds increasing through the day S-X SW by evening.

Sunday: Cloudy skies with temps rising to zero in the alpine. S-X SW winds at ridgetop. FL near 1700m

Snowpack Summary

Variable winds M-S forming new 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 natural cycle to size 2 was observed along the Akamina Parkway yesterday. The cycle included both windslabs and dry loose avalanches. Thanks for the great observations on the Mountain Information Network, we love seeing your adventures.

Confidence

Wind speed and direction is uncertain

Régions couvertes