Avalanche forecast

Jasper

Apr 2 – 3, 2015Parks Canada
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Archived · expired 12 years ago

Avalanche danger

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

Watch for slab conditions on lee aspects of ridges and terrain features. Choose your travel and ski lines to avoid overhead hazards are cornices are large and ready to fall.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    Windslabs can be found on lee aspects and cross loaded features at treeline and above.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.

Weather Forecast

A small system is expected to bring 6 - 10cm of new snow for Saturday.  This will combine with sun and clouds to make some good skiing weather.

Snowpack Summary

Soft slabs were observed on Northerly aspects around terrain features in the Whistler creek area at alpine and treeline elevations. A temperature crust can be found on all aspects up to 2500m. A supportive midpack sits over a weak basal facet layer in most areas at treeline and above. Large cornices exist at ridge line.

Avalanche Summary

No new natural avalanches reported in the forecast area. No natural avalanches were observed during a fieldtrip to the Whislter creek drainage. However, some snowballing was evident on solar aspects in the afternoon

Confidence

Intensity of incoming weather systems is uncertain on Saturday

Regions covered