Bulletin d’avalanche

Banff Yoho Kootenay

Apr 27, 2015Parks Canada
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Archivé · expiré 11 years ago

Danger d’avalanche

Tue
Wed
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
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Points saillants

Good travel conditions continue with a mix of corn skiing on solar aspects and powder on high North aspects. Watch for the effects of daytime heating on the snowpack and enjoy the spring skiing!

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    There have been several cornice failures over the past week, and in isolated events these have been a large enough load to trigger deeper basal layers.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    We will start to see in increase in solar triggered avalanche activity on Monday and Tuesday as the temperatures rise during the day.

Weather Forecast

Continued dry weather with light winds forecast for Monday with freezing levels near valley bottom overnight. On Tuesday freezing levels spike to near 3000m before a cold front moves through the region in the afternoon accompanied but strong winds and brief but intense snowfall. Wednesday sees a cooling and drying trend again.

Snowpack Summary

5-15cm of recent snow in the high alpine on North aspects from a brief storm Friday. Some small, isolated wind slabs up to 30cm were reported on the Wapta on Friday. Firm crusts up to 10cm thick remain intact at most elevations below the recent snow. The basal facets remain dormant though a very large cornice load or intense heat may change this.

Avalanche Summary

A few solar triggered slides off of steep solar aspects today. No other avalanches seen or reported.

Confidence

Régions couvertes