Avalanche forecast

Sea To Sky

Mar 18 – 19, 2026Avalanche Canada
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Avalanche danger

Fri
Sat
Alpine
4 · High
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

The avalanche danger remains high in the alpine above the rain line. Loose wet avalanches may still be reactive to human triggers.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Very Likely
    Size
    2–2.5

    Dry snow, above the rain line, in the high alpine elevations is being transported into slabs on lee features.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1.5–2

    Wet loose avalanche may still be likely with a human trigger.

Confidence

Moderate

  • We are uncertain about how the snowpack will react to the forecast weather.
  • We are uncertain about alpine conditions due to limited field observations.

Avalanche Summary

Several slab and wet loose avalanches were reported since Monday, up to size 3.

If you are in the backcountry, please share your observations by posting a MIN.

Snowpack Summary

Rain continues to saturate the upper snowpack up to 2100 m in some areas. Above the rain line, new snow combined with strong south to southwest winds is building slabs in lee terrain.

A widespread crust is buried 20 to 60 cm deep below 2100 m. Beneath this, the snowpack is generally well settled with no significant layers of concern.

Weather Summary

Wednesday Night

Cloudy. 25 to 35 mm of rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2100 m.

Thursday

Cloudy. 20 to 25 mm of precipitation as snow or rain at treeline. 40 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1800 m.

Friday

Cloudy. 30 to 45 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1800 m.

Saturday

Mostly sunny. 1 to 4 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Keep in mind that the high density of wet avalanches can make them destructive.
  • Be alert to conditions that change with aspect and elevation.

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