Bulletin d’avalanche

Kananaskis

Mar 20 – 21, 2019Alberta Parks
Voir sur la carte
Archivé · expiré 8 years ago

Danger d’avalanche

Fri
Sat
Alpin
4 · Fort
Limite forestière
4 · Fort
Sous la limite
4 · Fort
Ouvrir la carte complète

Points saillants

Hopefully by saturday the cooler temps will arrive and help stabilize the snow. Until then the snowpack will rapidly weaken in the afternoon.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1–2
    Wind slabs have become active with the recent heat, and recent avalanches have occurred on all aspects.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely - Certain
    Taille
    1–2
    Loose wet slides will occur on solar aspects at all elevations as temps warm up. Steep thin areas will be more vulnerable to this type of activity. They may trigger slabs as they gain mass.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    2–3
    Warmer temps have woken up this layer. Shallow snowpack areas and cornice triggers are of particular concern. This problem deserves respect as any resulting avalanche will be full depth.

Confidence

-

Weather Forecast

The warm weather will continue for a few days yet. Tomorrow has a posted high of 5°, but expect them to be a bit higher when the sun is factored in. Clear skies are expected, as are light westerly winds.

Avalanche Summary

Lots of loose wet avalanches in the PM. Any aspect that gets the sun has become reactive by mid day. Of note, many point release avalanches are triggering slabs as they flow.

Snowpack Summary

Widespread crusts in the morning which are quickly breaking down in the early afternoon. Thats the current pattern. What's important to note is the snowpack is still a winter one. Meaning it still has layers buried beneath which could fail. Northern aspects in particular will preserve these layers and keep them active for some time yet. The good news is that the warm weather pattern is predictable.

Régions couvertes