Bulletin d’avalanche

South Coast

Apr 2 – 3, 2017Avalanche Canada
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Archivé · expiré 9 years ago

Danger d’avalanche

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

Points saillants

Watch for lingering wind slabs in high north facing terrain. Extra caution is needed around all steep sun exposed slopes as well any slopes exposed to large cornices.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Wind slabs may be reactive on shaded north facing terrain at the highest elevations.
  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Solar triggered loose wet avalanches should be expected from steep sun exposed slopes during the heat of the day.

Confidence

Low - Due to the number of field observations

Weather Forecast

Mostly sunny conditions are expected on Monday with light alpine wind from the north. Freezing levels are forecast to drop to around 700 m Sunday overnight and reach around 1300 m on Monday afternoon. Increasing cloud cover is expected on Tuesday with light to moderate alpine wind from the south and freezing levels reaching around 1500 m in the afternoon. Light precipitation is forecast for Wednesday with strong alpine wind from the southwest and freezing levels reaching around 2000 m in the afternoon.

Avalanche Summary

No new avalanches have been reported but observations have been very limited. On Monday, solar triggered sluffing is possible on steep sun exposed slopes. Wind slabs may be reactive in high north facing terrain.

Snowpack Summary

Recent snowpack observations have been very limited and confidence is low. A widespread crust is now expected on all aspects and elevations except for north facing terrain in the alpine. Where dry snow still exists, recent strong southerly winds have likely formed wind slabs. At lower elevations, recent rain has likely saturated the snowpack which is expected to have become isothermal below the surface crust.

Régions couvertes