Bulletin d’avalanche

Waterton Lakes

Jan 15 – 18, 2019Parks Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

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

Recent settlement has generally increased the strength of our snowpack but pockets of Wind Slab exist at higher elevations. Lingering uncertainty about the ability to trigger deep persistent weak layer requires a cautious approach to terrain. 

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3

Weather Forecast

TUESDAY          Cloudy with sunny periods.  No precipitation. Light SE wind.WEDNESDAY    Cloudy with isolated flurries. Trace amounts of snow. SW Wind 25- 35 km/h.THURSDAY        Cloudy with scattered flurries.  4 cm snow. Freezing Level valley bottom. Moderate E wind.

Snowpack Summary

Surface Hoar development 1600-1800m. Sun crust on solar aspects. 10-30cm Wind slabs in lee terrain over a strong, well-settled midpack. Facets and Depth Hoar at the base of the snowpack remain a concern in shallow snowpack areas.

Avalanche Summary

No new avalanches observed last 72 h.

Confidence

Due to the number of field observations

Régions couvertes