Lawinenlagebericht

South Columbia

Feb 18 – 19, 2026Avalanche Canada
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Archiviert · abgelaufen 7 months ago

Lawinengefahr

Fri
Sat
Hochgebirge
3 · Erheblich
Waldgrenze
3 · Erheblich
Unterhalb
3 · Erheblich
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Kernpunkte

People continue to trigger larger avalanches on the various weak layers within the snowpack. Continue to travel conservatively.

Lawinenprobleme

  • Persistent Slabs

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

    Two problematic layers of surface hoar, facets, and/or melt-freeze crust are buried 40 to 120 cm deep. Large avalanches continue to be triggered on these layers, primarily between 1600 m and 2200 m and on all aspects.

  • Storm Slabs

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

    Around 20 to 40 cm of snow has accumulated over the past week, which overlies a spotty layer of surface hoar and/or a crust on sun-exposed slopes. Storm slabs continue to be triggered where this snow has formed a slab.

Terrain and Travel Advice

  • Remote triggering is a concern; avoid terrain where triggering overhead slopes is possible.
  • Surface hoar distribution is highly variable. Avoid generalizing your observations.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.
  • Be especially cautious as you transition into wind-affected terrain.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

Many large (mostly size 2) storm slab, wind slab, and persistent slab avalanches released over the weekend and on Monday, being triggered naturally, by explosives, and from humans (including remotely). Storm slabs released on all aspects and at all elevation bands. Persistent slabs released between 1600 m and 2300 m on all aspects.

It remains likely for humans to continue to trigger the various weak layers described in the Snowpack Summary.

Snowpack Summary

Light snowfall over the past week has built up to 20 to 40 cm of snow, with deeper deposits in lee terrain features. This storm snow overlies an isolated layer of surface hoar crystals and a melt-freeze crust on sun-exposed slopes that formed mid-February. Storm slabs continue to release within the storm snow.

Two other layers of concern are found in the middle of the snowpack. Buried about 40 to 60 cm is the early-February layer of surface hoar crystals in wind-sheltered terrain and a crust on sun-exposed slopes. Buried about 70 to 120 cm is the late-January layer of surface hoar and facets over a melt-freeze crust. Both of these layers continue to form large avalanches.

The remainder of the snowpack is strong.

Weather Summary

Tuesday Night

Cloudy. 1 to 3 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -12 °C.

Wednesday

Cloudy. 1 to 4 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -13 °C.

Thursday

Mostly cloudy. 1 to 3 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -15 °C.

Friday

Mix of sun and clouds. 20 km/h northwest ridgetop wind. Treeline temperature -14 °C.

More details can be found in the Mountain Weather Forecast.

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