Bollettino valanghe

Jasper

Dec 20 – 21, 2011Parks Canada
Vedi sulla mappa
Archiviato · scaduto 15 years ago

Pericolo valanghe

Tue
Wed
Alta quota
3 · Marcato
Limite del bosco
4 · Forte
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

Strong to extreme winds coupled with warm temperatures are creating hard, easily-triggered windslabs in most treeline lee features as well as pockets of the alpine that are sheltered enough to hold snow.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–3
    Windslabs have formed in sheltered lee features at Treeline and protected pockets in the Alpine.

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2
    Anywhere from 5-35cm of new snow fell Saturday evening. Warm temperatures and winds have stiffened the storm snow into a more cohesive soft slab layer. Some pockets of soft slab may release from skier presence.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    Basal facet collapses are still being noted in test pits below midpack bridging layers. Shallow snowpack areas and rocky outcrops are likely trigger locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Regioni coperte