Avalanche forecast

South Rockies

Apr 11 – 12, 2013Avalanche Canada
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Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

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]

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Recent snow and gusty winds may have formed windslabs in lee features in the alpine

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    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.

Weather Forecast

Friday: Mainly overcast with some sunny breaks early in the day. Clouds increasing in the afternoon with light precipitation possible. Freezing level 1000m and strong southwest winds.Saturday: Light to moderate precipitation possible with the passage of a cold front. Freezing level 1400m. Winds moderate from the west.Sunday: A cold and unstable airmass will bring a mixed bag of weather conditions. Cool temperatures, mainly overcast with some sunny breaks and possible snow showers.

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.

Confidence

Poor - Due to limited field observations for the entire period

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.

Regions covered