Bulletin d’avalanche

Jasper

Mar 16 – 17, 2019Parks Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
3 · Marqué
Sous la limite
3 · Marqué
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Points saillants

Start your back-country adventures early, and end them early! Highway 93N will be closed Sunday at 1500. From Athabasca Falls to Saskatchewan River Crossing for Avalanche Control. Check Alberta 511 for details and updates.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2.5
    Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    Watch out for any sunny, steep features. Expecting good recovery to the surface freeze, overnight Saturday. Progressively rising Hazard over the daytime.

Weather Forecast

A ridge of high pressure is bringing the heat. Sunny with cloudy periods. Alpine temperature: Overnight Saturday, Low: -8, High 4°C.Ridge wind light to 20 km/h. Freezing levels will rise as high as 2200 metres; up to 2800 metres on Monday.

Snowpack Summary

Moist surface snow treeline and below and the alpine is heavily wind effected. Deep snowpack areas are relatively strong through most of the region. Shallow areas are weak, and will morph quickly to moist 'spring like' slab conditions from the surface down. With the persistent basal weakness, this could fail with the full depth of the snowpack.

Avalanche Summary

Several loose wet avalanches on steep, solar, rocky below treeline features and a windslab avalanche in the alpine on a cross-loaded south feature at 2500m. 

Confidence

The weather pattern is stable

Régions couvertes