Avalanche forecast

Jasper

May 1 – 2, 2014Parks Canada
View on map
Archived · expired 12 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
Open full map

Highlights

Rain will change to snow Friday AM with 20 cm possible through the day.  Dangerous avalanche conditions will continue until cold temperatures stabilize the snowpack.

Avalanche problems

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Loose wet avalanches will slow as temperatures cool and rain changes to snow through the day.

  • Wet Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Wet slab avalanches will slow as temperatures cool and rain changes to snow through the day.

Weather Forecast

Temperatures will remain warm overnight with up to 10mm of rain.  Easterly winds begin Friday am and temperatures will fall.  Rain will change to snow with 20 cm possible by Friday night.  Cool temperatures and snow through the weekend with total storm accumulation of 35 cm possible.

Snowpack Summary

The snowpack is warm at all elevations with isothermal conditions on all but northerly alpine aspects.  Rain overnight will continue to deteriorate the snowpack at treeline and below.  Stability will return to the snowpack base as temperatures drop through the weekend however surface storm snow instabilities are likely.

Avalanche Summary

A significant avalanche cycle continues at all elevations, most observations have been on southerly aspects. 

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Friday

Regions covered