Avalanche forecast

Jasper

Mar 13 – 14, 2019Parks Canada
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Archived · expired 8 years ago

Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate
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Highlights

Avalanches still can happen on specific terrain features at Moderate hazard. Choose your terrain wisely.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2.5
    Fresh windslabs sit on a variety of old surfaces, these will take several days to settle and stabilize.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2.5
    Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.

Weather Forecast

A westerly flow continues and a much weaker front will track through bringing light precip, gusting west winds and rising freezing levels for Thur and Fri. Columbia Icefields Region:Thursday: Mainly Cloudy with isolated flurries, Treeline High Temp: -8. Ridge winds southwest 15km/h gusting 50km/h

Snowpack Summary

Windslabs in the alpine and treeline on N-E aspects. Previous old surfaces were; loose facets in sheltered terrain; wind affected in exposed areas; and, sun crust to treeline on solar aspects. The mid/lower snowpack is relatively strong for the region in deeper snowpack areas, and weak and facetted in shallow snowpack areas.

Avalanche Summary

A group of skiers triggered a large windslab avalanche in the backcountry near Marmot Basin Tuesday.A widespread cycle of small-large loose dry avalanches occurred Monday night during the snow and wind storm - these started small, but scrubbed down in to the facets.Several large windslab avalanches on alpine NE aspects also ran during the storm.

Confidence

The weather pattern is stable

Regions covered