Bulletin d’avalanche

Waterton Lakes

Dec 17 – 20, 2015Parks Canada
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Archivé · expiré 11 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Great skiing persists, particularly around treeline. Get out there and enjoy it! But watch for fresh storm slab development as soon as the winds pick up. JH

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1–3

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1
    Watch for sloughs running fast and far where previous crusts are near the surface.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1–2
    Previous storm slabs have not been reactive for several days.Watch for fresh storm slab development when the wind increases.

Weather Forecast

Several well organized low pressure systems making landfall on the central coast over the next few days will mostly be held off from influencing our area by a high pressure center over norther BC/Alberta.  Thankfully, on Friday a front will make it through, and we can expect to see snowfall in the amount of 10-15 cm by Saturday afternoon.

Snowpack Summary

10-15 cm of new snow overnight burying previously visible storm slabs formed by SW-NW winds. 3 buried crusts exist; two from early December are widespread below tree-line, and one from mid November which exists at all elevations and has a highly variable depth as it was scoured clean in exposed areas prior to the heavy rain/snow event on Dec. 8th.

Avalanche Summary

No new avalanche activity has been observed or reported.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Friday

Régions couvertes