Bulletin d’avalanche

Jasper

Mar 5 – 6, 2014Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

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

Ski conditions are improving with steady light snowfalls of low density snow. 

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Although winds are expected to remain relatively light, there have been several wind events in the past 48 hours with shifting gusty winds in the moderate to strong range that may have produced new windslabs at upper elevations.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    New low density storm snow is shedding from steep terrain in the alpine and may have enough mass to ruin your day.  Expect sluffing on steeper slopes at all elevations.

Weather Forecast

Another 10cm expected in the next 24hours, with light Southwest winds.  Precipitation amounts expected to increase by the end of the week, with as much as 60cm possible for the Columbia Icefields area. Temps to remain below zero at treeline and in the alpine.

Snowpack Summary

Supportive mid-pack above 1900m. A persistent weak layer (Feb10 interface) can be found down 30-70cm and consists of decomposing surface hoar and or facetted grains but appears to be bonding well. 10-20cm of low density new storm snow available for transport. New windslabs forming in exposed areas above treeline.

Avalanche Summary

Several loose dry avalanches to size 1.5 out of steep rocky East facing terrain in the alpine were observed today.  No new slab avalanches observed.

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes