Bulletin d’avalanche

Jasper

Mar 8 – 9, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

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

The surface hoar under the new storm snow remains touchy. People and solar effect are two likely triggers for new avalanches right now.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Continued Mod-strong NW winds are creating wind slabs primarily in the alpine but also in exposed treeline locations. These slabs will be reactive even if they do not have preserved surface hoar beneath them.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–4
    The recent widespread avalanche cycle was the result of our Feb.14 surface hoar layer failing below the rapid load of new snow. Natural activity has declined partly because so many areas have already avalanched. Areas that have not are suspect!

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Strong solar radiation is tightening the recent storm snow on solar aspects into a cohesive slab. Forecast warm temps with continued solar effect is expected. Ice climbers on solar aspects should expect soft slabs and power sloughing in the PM.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Freezing levels are uncertain

Régions couvertes