Lawinenlagebericht

North Columbia

Mar 9 – 10, 2025Avalanche Canada
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Lawinengefahr

Tue
Wed
Hochgebirge
4 · Gross
Waldgrenze
4 · Gross
Unterhalb
3 · Erheblich
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Kernpunkte

Choose conservative, low consequence terrain and give the storm snow time to settle

New snowfall amounts are variable, continuously assess and verify conditions

Lawinenprobleme

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    2–4

    Weak layers from January and February are likely to fail under the new snow load.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely - Very Likely
    Größe
    1–3

    Storm slabs will remain rider triggerable. Assess new snow amounts, the more you find the larger and more sensitive slabs will be.

Confidence

Moderate

Avalanche Summary

On Saturday ski cutting produced numerous small wind slab avalanches in the region. These avalanches were at treeline and on a variety of aspects.

We suspect that a natural avalanche cycle occurred on Sunday but as of the time of publishing we have not received any reports.

Snowpack Summary

New snowfall amounts in the region are highly variable, By Monday morning 20 to 70 cm may have fallen with strong southwest winds, forming deeper deposits on north and east aspects. This new snow will overlie a crust on all aspects and elevations except north facing slopes above 2000 m. Surface hoar could also be found under this new snow on sheltered features.

A weak layer, composed of facets, surface hoar, or a crust, is found 40 to 90 cm deep from mid-February. Another persistent weak layer, buried in late January, lies 60 to 120 cm deep. This layer is surface hoar, facets, or a crust, depending on the aspect.

The remaining snowpack is well-settled and strong.

Weather Summary

Sunday Night

Cloudy with 5 to 20 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Monday

Mostly cloudy with up to 2 cm of snow. 20 to 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Tuesday

Mostly cloudy with around 5 cm of snow. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Wednesday

Mostly cloudy with around 5 cm of snow. 10 to 30 km/h south ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Don't let storm day fever lure you into consequential terrain.
  • Avoid the runout zones of avalanche paths. Avalanches could run full path.
  • Be aware of the potential for large avalanches due to buried weak layers.

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