Avalanche forecast

Jasper

Dec 24 – 25, 2011Parks Canada
View on map
Archived · expired 15 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
Open full map

Highlights

Warming temperatures with the possibility of rain showers forecast for this weekend could increase the avalanche danger below treeline. Pay close attention to abrupt changes in temperature and precipitation type if traveling in avalanche terrain.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    The alpine is mostly blown bare with hard windslabs and loaded lee slopes that can be easily identified and avoided. Wind slabs are present on easterly treeline aspects. These can be a little more tricky to identify so avoid slabby feeling slopes.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    Basal facet collapses are still occurring below the midpack bridging layer. Shallow snowpack areas and rocky outcrops are likely trigger locations. A large full path avalanche could result if this weakness is triggered.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

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

Regions covered