Bollettino valanghe

Banff Yoho Kootenay

Nov 10 – 11, 2025Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 11 months ago

Pericolo valanghe

Wed
Thu
Alta quota
2 · Moderato
Limite del bosco
Inizio stagione
Sotto il limite
Inizio stagione

In sintesi

Watch out for building hazard due to sluffing in steep gullies and new windslab development if the storm comes in as forecasted on Monday/Tuesday.

Monitor local weather conditions at Avalanche Canada's website.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    There is enough snow in wind-loaded alpine and high treeline features to create avalanches, and human triggering is possible. While we expect these slides to be limited in size, getting avalanched in a shallow snowpack can easily result in an injury, so use caution in steep terrain.

Confidence

Moderate

Avalanche Summary

No new avalanches observed or reported on Sunday but on Saturday, test firing of Mt Bosworth's remote avalanche control system (Gaz-Ex) produced two size 1.5 windslabs, both located on a South aspect at 2300m.

Snowpack Summary

5–10 cm of storm snow has been redistributed into wind slabs in lee areas, especially in the alpine. Height of snow is 80-100cm in the alpine, 30–60 cm at treeline, and it tapers quickly below treeline. Early reports suggest that while the snowpack is generally thin, it supports the weight of a skier.

Weather Summary

Temperatures are forecasted to cool overnight Sunday with Westerly winds decreasing slightly but staying strong throughout the day Monday. We expect 1-15 cm of new snow on Monday with higher amounts north of Lake Louise. Drier and calmer conditions are expected Tuesday.

Western Canada weather maps

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Use ridges or ribs to avoid areas of wind-loaded snow.

Regioni coperte