Lawinenlagebericht

Banff Yoho Kootenay

Nov 11 – 12, 2025Avalanche Canada
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Archiviert · abgelaufen 11 months ago

Lawinengefahr

Thu
Fri
Hochgebirge
2 · Mässig
Waldgrenze
Saisonbeginn
Unterhalb
Saisonbeginn

Kernpunkte

Watch out for building hazard due to sluffing in steep gullies and new windslab development.

Monitor local weather conditions at Avalanche Canada's website.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    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

Low

Avalanche Summary

No new avalanches observed or reported on Monday. 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 on Sunday 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

Previous strong to extreme ridgetop winds are expected to ease early in the week. Unsettled weather will persist, with another round of precipitation forecast for Wednesday. Snow accumulation will be heaviest in the western part of the region, with up to 10 cm expected at higher elevations. Freezing levels over the next few days will range between 1,500 and 2,000 m.

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.

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