Bulletin d’avalanche

Jasper

Feb 16 – 17, 2020Parks Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

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

Points saillants

Tomorrow the back country terrain around Marmot basin & Tonquin open up! Enter this terrain slowly and get a feel for the snowpack in the area, Avoid think to thin spots and committing lines until you are confident in the snowpack!

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2.5

    Strong winds in the park today. SW winds are keeping the wind slabs touchy in lee features. Sensitivity will vary with local loading and wind patterns.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1.5–3

    Shallow snowpack areas and/or large triggers such as cornice failures could trigger this deep layer. The consequences would be severe!

Weather Forecast

Overall the next 3 days are slightly cooler -16 with Light west winds and trace amounts of snow daily.

Freezing level will remain at valley bottom. You can expect broken skies with small appearances from the sun throughout.

Find the Alberta Rockies weather synopsis here: Avalanche Canada Mountain Weather Forecast

Snowpack Summary

Continued Strong SW winds for the last 5 hours continue building variable strength windslab and pronounced cornice development on Northerly aspects and cross loaded features treeline and above. A supportive mid-pack is bridging the deeper basal facets and depth hoar in some locations.

Average HS at treeline: ~180cm.

Avalanche Summary

No new avalanche were observed or reported today.

Confidence

Régions couvertes