Bulletin d’avalanche

Jasper

Jan 2 – 3, 2021
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Archivé · expiré 6 years ago

Danger d’avalanche

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

Highway 93 will be closed for travel and recreation as of 10:00 AM Saturday. Expected opening on Monday.

Problèmes avalancheux

  • Wind Slabs

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

    Recent strong southwesterly winds are creating new wind slabs reactive to human triggering.

  • Persistent Slabs

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

    In the alpine hard slabs sit overtop of facets. Dec 14th surface hoar to 6mm can be found in sheltered locations up to 2200m.

Snowpack Summary

Light precipitation and strong SW winds through the day. 15-25cm of soft snow over a firm mid-pack with facets and depth hoar lingering near the ground. Mid-December persistent layers, including SH, and SH/FC combos can be found down 25-40cm but, only in isolated and sheltered locations, and almost exclusively in the Icefields region.

Weather Forecast

Tonight: Snow accumulation: 12 cm. Alpine temperature: Low -6 °C. Ridge wind southwest: 20 km/h gusting to 60 km/h.Saturday: Snow, heavy at times accumulation: 27 cm. Alpine temperature: High -6 °C. Ridge wind southwest: 25 km/h gusting to 65 km/h.Sunday: Flurries. Accumulation: 12 cm. Alpine temperature: Low -10 °C, High -6 °C. Wind SW moderate.

Avalanche Summary

No new avalanches observed. Forecasting field team reporting reactive new wind slab in the Icefields region. Make your field trip observations count! Share them with the local outdoor adventure community on the Mountain Information Network from Avalanche Canada.

Confidence

Intensity of incoming weather systems is uncertain on Sunday

Régions couvertes