Bulletin d’avalanche

Kananaskis

Feb 13 – 14, 2018Alberta Parks
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Archivé · expiré 9 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

The winds were raging today! The alpine has taken the brunt of it, but even the low elevation areas had some slabs develop. Good skiing is out there, but it will take some searching.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1.5–2.5
    These reach almost to valley bottom and are dense enough to propagate if triggered. They make for challenging skiing right now.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–3.5
    Many old avalanches have filled in already. There is a risk that these slopes could avalanche again as they load up. The wind slabs stepping down and triggering this layer is also a concern.

Confidence

High -

Weather Forecast

The winds will taper overnight tonight. Tomorrow they are "only" 45km/hr from the west. Temperatures will remain consistent with today's, and hover around -13°. Flurries will bring up to 6cm throughout the day tomorrow.

Avalanche Summary

Nothing new today.

Snowpack Summary

Strong to extreme winds have stripped most of the available snow and formed stiff wind slabs on all lee aspects. The winds have come from west to north aspects which has made a reverse loading pattern. Luckily these areas are easily identified once seen. So far the alpine has been the most wind effected, but treeline also has widespread slabs. Even valley bottom areas have felt the winds. Many avalanche crowns from last week have filled in.

Régions couvertes