Lawinenlagebericht

Kootenay Boundary

Jan 9 – 10, 2026Avalanche Canada
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Lawinengefahr

Sun
Mon
Hochgebirge
3 · Erheblich
Waldgrenze
3 · Erheblich
Unterhalb
2 · Mässig
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Kernpunkte

Very large and destructive avalanches have occurred in the region

It's a good time to stick to conservative terrain choices and back off even further if you see signs of instability

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–2

    Recent and forecast moderate to strong westerly winds may be forming new slabs in leeward terrain at upper elevations.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1.5–3

    As old storm snow consolidates, human-triggered avalanches may continue to be reactive at all elevations, especially where a surface hoar layer is present. Remote triggering is a concern, avoiding overhead hazard is recommened.

Confidence

Moderate

  • Uncertainty is due to how quickly the snowpack will recover and gain strength.
  • The number, quality, or consistency of field observations is good, and supports our confidence.

Avalanche Summary

A widespread natural avalanche cycle occurred in the region over the last few days, with very large avalanches up to size 3 reported.

Numerous human-triggered and remote-triggered avalanches have also occurred in the region up to size 2.5.

Looking forward: The recent avalanche activity indicates a very reactive weak layer with potential for remotely triggering large and dangerous avalanches. This is a good time to stick to conservative terrain.

Snowpack Summary

A weak surface hoar layer buried 30 to 80 cm is the primary concern in the region. It has been the failure layer in many recent avalanches. On south-facing slopes, this layer is a sun crust.

Recent and forecast winds may be forming wind slabs on leeward slopes at upper elevations.

A melt-freeze crust can be found down 100 to 150+ cm. It is thin or absent in alpine terrain but thicker and more widespread at treeline and below. Triggering this layer is considered unlikely at this time.

The lower snowpack is generally well-bonded and consolidated, with multiple crust layers present.

Weather Summary

Thursday Night
Partly cloudy. 2 to 4 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -10 °C.

Friday
Cloudy. 1 to 4 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -7 °C.

Saturday
Mostly sunny. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Sunday
Cloudy. 5 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be aware of the potential for larger than expected storm slabs due to buried surface hoar.
  • Remote triggering is a big concern, be aware of the potential for wide propagations and large, destructive avalanches at all elevations.
  • Start with conservative terrain and watch for signs of instability.
  • Be especially cautious as you transition into wind-affected terrain.

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