Bollettino valanghe

Jasper

Nov 22 – 24, 2025Avalanche Canada
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Archiviato · scaduto 10 months ago

Pericolo valanghe

Mon
Tue
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
Inizio stagione

In sintesi

Moderate to strong SW winds have built fresh wind slabs in the alpine and in open treeline features. As you move into wind-affected terrain, take the time to assess each slope carefully.

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

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    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 to strong 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

Saturday

Snowfall amounts ~7 cm. Alpine temperature: High -3 °C. Mostly light ridge wind occasionally gusting to 35 km/h. Freezing level: 1700 metres.

Sunday

Snowfall amounts ~12 cm. Alpine temperature: Low -6 °C, High -3 °C. Mostly light ridge wind occasionally gusting to 35 km/h. Freezing level: 1500 metres.

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.

Regioni coperte