Bulletin d’avalanche

South Rockies

Apr 12 – 13, 2013Avalanche Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

 Due to a lack of information sources at this time of year, this forecast is based primarily on weather data. If you have been traveling in the backcountry recently, send us your observations. Email us at [email protected]

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Recent snow and gusty winds may have formed windslabs in lee features in the alpine

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–4
    Loose moist or wet snow may continue to release naturally from steep terrain or rocky cliffs. Moist or wet snow in motion may scour down to the ground where the snowpack is isothermal.

Confidence

Poor - Due to limited field observations for the entire period

Weather Forecast

Saturday: Light to locally moderate precipitation possible through the overnight period Friday to Saturday with the passage of a cold front. Freezing level 1300m. Winds strong from the southwest switching to moderate west.Sunday and Monday: A broad upper trough of low pressure brings unsettled conditions. Mainly cloudy with the chance for light to locally moderate convective precipitation. Freezing level to remain at 1300m.

Avalanche Summary

Loose wet or moist snow is expected to continue to release naturally from steep terrain or rocky areas at lower elevations if temperatures rise and the sun comes out.

Snowpack Summary

Overnight freezing has consolidated previously loose wet snow at treeline and above. Recent moderate winds may have developed windslabs at upper elevations. Surface crusts are expected to break down during the day and then re-freeze overnight. Moist or wet snow below treeline is not expected to have much of a recovery and may continue to be isothermal and weak.

Régions couvertes