Bollettino valanghe

Banff Yoho Kootenay

Mar 8 – 9, 2012Parks Canada
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Archiviato · scaduto 15 years ago

Pericolo valanghe

Thu
Fri
Alta quota
4 · Forte
Limite del bosco
4 · Forte
Sotto il limite
3 · Marcato

In sintesi

The widespread large avalanche cycle continues. Large avalanches are expected again on Thursday with the weather forecast of warming and strong winds. More snow again for Friday will keep the avalanche danger HIGH for the rest of the week. GS

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    Strong NW winds over the last 24-hours have created windslab conditions in open areas at higher elevations. With 80cm of recent storm snow available for transport, expect deep slabs in leeward areas.
  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Very Likely
    Dimensione
    2–4
    The Valentine surface hoar down 75 cm is overlain by a stiff slab and remains very sensitive to triggers. This problem is actively producing large avalanches in many locations and will remain so for the forecast period. Avoid all steep open terrain.
  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    2–4
    The deep facets in the Rockies snowpack are awake again, and are responsible for numerous size 3 and 4 avalanches in the last 48-hours. Avalanches starting in the upper snowpack are stepping down into the base of the snowpack.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number and quality of field observations

Regioni coperte