Bulletin d’avalanche

Jasper

Nov 23 – 24, 2015Parks Canada
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Archivé · expiré 11 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Weather models are uncertain to the amount of snow arriving on Monday and Tuesday. A significant amount has potential to increase the danger rating.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3
    Previous strong to moderate winds have formed wind slabs on cross-loaded and lee aspect slopes. They remain stubborn to trigger as no significant sliding layer exists underneath them.

Weather Forecast

10-20cm of snow may arrive starting Monday into Tuesday with winds shifting Northerly mid-storm and temperatures dropping. It will be clear skies, cold overnight temperatures, and Northeasterly winds the remainder of the week. 

Snowpack Summary

Field observations in the Parkers area found snow depths vary between 10 to 140 cm. Extensive wind effect at TL and above giving supportive touring but limited ski quality out in the open. Where significant loading has occurred the snow remains stubborn and does not want to propagate. 

Avalanche Summary

One possible unobserved skier remote, sz 1.5 seen Saturday on a slope in the Hilda-Destiny ridge area. A BTL steep rock slab feature in a cross-loaded gully. Forecasters are treating it as a anomalous event as no further naturals were observed.

Confidence

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

Régions couvertes