Avalanche forecast

Jasper

Nov 21 – 22, 2025Avalanche Canada
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Archived · expired 10 months ago

Avalanche danger

Sun
Mon
Alpine
2 · Moderate
Treeline
1 · Low
Below
Early season

Highlights

A storm will start Friday and continue through the weekend. Incoming new snow and winds will create fresh wind slabs and dry loose avalanches in steep exposed terrain.

The snowpack is building around the Icefields but early season conditions still persist across most of the region.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    Human triggered windslabs in steep alpine terrain were reported Thursday (20th) Even though these are thin they are large enough to have serious consequence in steep terrain.

Confidence

Low

Avalanche Summary

A few size 1 human triggered wind slab avalanches were reported on Thursday 20th in steep alpine terrain.

Snowpack Summary

The snowpack is highly variable across the region. The Icefields area has 50-80 cm at tree line and the Maligne area has 10-15 cm. Since the Nov 13 storm, moderate SW winds have transported snow in open areas, and Nov 18 brought up to 5 mm, falling as rain at tree line and below. There is not yet much information available about the early season snowpack structure, so be sure to dig down and investigate if you're heading out, and post your observations to the MIN!

Weather Summary

Friday

Sunny with cloudy periods and isolated flurries. Alpine temperature High of -4 °C. Ridge wind light to 25 km/h. Freezing level at 1500 metres.

Saturday

Flurries up to 8 cm. Alpine temperature Low -4 °C, High -4 °C. Mostly light ridge wind occasionally gusting to 30 km/h. Freezing level: 1700 metres.

Sunday

Periods of snow up to 19 cm.

Terrain and Travel Advice

  • Small avalanches may cause climbers to fall or bury belayers and gear.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for slabs before you commit to it.

Regions covered