Bulletin d’avalanche

Jasper

Mar 3 – 4, 2019Parks Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

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

Sunburn on the cheeks and frost bite on the nose. Brutal, light north winds making travel, unpleasant.  Generally safe avalanche conditions but keep a healthy sense of uncertainty when stepping out into challenging and complex terrain.

Problèmes avalancheux

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–1.5
    Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1.5–2.5
    The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.

Weather Forecast

Sunny, No new precipitation expected. Overnight low: -26 and afternoon high: -15 °C. Completely miserable light NE ridge winds.Mountain weather forecast available at Avalanche Canada. 

Snowpack Summary

The upper snowpack remains faceted on all aspects. Wind effect in open terrain from previous SW and now N winds. Much of the mid-pack is faceted with some strength and support on skis but not always under foot. Isolated sensitivity to Jan 18th layer at treeline and below, but not consistent to all areas. Large depth hoar on the ground, everywhere.

Avalanche Summary

Field team in the Maligne on Friday in the Bald Hills conducted field tests at 2200m in a open forested area. Profile available on Canadian Avalanche Association's, Mountain Information Network. No new recent avalanche activity observed or reported in the bulletin region.

Confidence

The weather pattern is stable

Régions couvertes