Bulletin d’avalanche

Jasper

Jan 9 – 10, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

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

Additional snowfall and wind Monday evening - Tuesday will continue to build wind slabs in exposed terrain.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

    Cold temperatures and additional snowfall the evening will increase the likelihood of dry loose avalanches in extreme terrain. Be aware of your overhead hazard and exposure to consequence.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–2.5

    You must keep this basal layer on your radar as triggering is possible in isolated features, such as steep rocky terrain where you find yourself standing on the surface and not wallowing in facets, that's the problem slab.

Confidence

Moderate

Avalanche Summary

No Avalanche activity was observed on Sunday. No field observations today.

Please consider submitting a MIN report.

Snowpack Summary

10cm of recent snowfall has been redistributed by moderate wind developing a wind slab in exposed terrain. Surface wind slab/snow sits over a hard layer created by previous wind-effect. The rest of the snowpack is weak and faceted with well-developed depth hoar at the base. Sheltered areas have an average snow depth of ~45-75 cm.

Weather Summary

Monday Night

Flurries. 7 cm. SW wind 15-35km/h

Tuesday

Flurries. Accumulation: 6 cm. Ridge wind SW 15 km/h gusting to 45.

Wednesday

Mainly cloudy with scattered flurries. Accumulation: 5 cm. Alpine High -10 °C. Light Wind.

Thursday

Cloudy with sunny periods. Precipitation: Nil. Alpine high -30 °C.

The Mountain Weather Forecast is available at Avalanche Canada https://avalanche.ca/weather/forecast

Terrain and Travel Advice

  • Use caution when approaching steep and rocky terrian.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.
  • Be carefull around freshly wind loaded features.

Régions couvertes