Bulletin d’avalanche

Purcells

Apr 13 – 14, 2016Avalanche Canada
Voir sur la carte
Archivé · expiré 10 years ago

Danger d’avalanche

Fri
Sat
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
Ouvrir la carte complète

Points saillants

Spring Conditions. If the sun comes out, the strong solar radiation will heat up the snowpack rapidly and avalanche danger will increase. New wind slabs may not be well bonded to the old surface crust.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Thin new wind slabs may be easy to trigger when they are exposed to strong solar radiation. Wind slabs may not be well bonded to the old surface crust.

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–4
    If the sun comes out, it wont take long for solar aspects to heat up and result in natural cornice falls.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Loose wet avalanche activity is expected to increase with exposure to strong solar radiation and climbing freezing levels.

Weather Forecast

Mostly cloudy overnight with light to moderate northerly winds developing and freezing levels down close to 1000 metres by morning. Cloudy on Thursday with periods of light snow and freezing levels climbing to 2000 metres. Overcast with convective flurries on Friday combined with light southerly winds. Freezing levels starting out near 1500 metres and rising up to at least 2000 metres. Not much of a re-freeze expected for Saturday morning, mostly sunny with freezing levels climbing to at least 2500 metres.

Avalanche Summary

No new avalanches reported.

Snowpack Summary

The snow surface is currently going through a typical spring melt-freeze cycle on all aspects and at all elevations, except possibly high true-north slopes which could be holding onto cold snow. Forecast new snow and wind are expected to develop new windslabs in the alpine and at treeline. Higher elevations may feel more like winter for the next day or two, and new wind slabs may not bond well to the old hard re-frozen surface.

Régions couvertes