Bulletin d’avalanche

South Rockies

Jan 26 – 27, 2014Avalanche Canada
Voir sur la carte
Archivé · expiré 13 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Ouvrir la carte complète

Points saillants

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    2–4
    With forecast cooling avalanches on deep persistent layers will become unlikely. Triggering may be possible with a heavy load in steep, rocky start zones with a thin or variable snow cover.

Confidence

Fair - Due to the number of field observations

Weather Forecast

Monday: Mainly clear skies / Light northerly winds / Freezing level at surfaceTuesday: Clear skies / Light northwesterly winds / Freezing level at 1100mWednesday: Light snowfall / Light west winds / Freezing level at surface

Avalanche Summary

Over the weekend solar heating triggered numerous loose wet avalanches on steep, south-facing alpine terrain. No other recent activity was reported.

Snowpack Summary

Light amounts of new snow overlie a variety of surfaces which include old, stubborn wind slabs in exposed terrain or well developed surface hoar in sheltered areas. Sun-exposed slopes are now sporting a melt-freeze crust. The main concern in the region appears to be weak buried facet crystals which exist in the mid or lower snowpack (depending where you are in the region). Although activity at this interface has tapered-off, avalanches at this interface could have nasty consequences. Other possible triggers for this layer include cornice fall, or a heavy load over a thin spot.

Régions couvertes