Avalanche forecast

Sea To Sky

Jan 3 – 4, 2025Avalanche Canada
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Avalanche danger

Sun
Mon
Alpine
1 · Low
Treeline
1 · Low
Below
1 · Low

Highlights

A small increase in wind speeds could quickly increase avalanche danger, so stay alert and monitor local conditions.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2

    Dry, low-density snow on the surface is ideal for wind transport. Even a small increase in wind speed could quickly build reactive wind slabs.

Confidence

High

Avalanche Summary

No recent avalanche activity has been reported.

Explosive-controlled cornices over the past couple of days have not triggered any slab avalanches below.

Snowpack Summary

Low-density snow on the surface sits above an upper snowpack that gets progressively denser with depth. Wind-affected surfaces exist in exposed terrain at higher elevations.

While the mid and lower snowpack is generally well-settled, two crust/facet layers will be closely monitored as the snow load above continues to accumulate. These layers have a variable distribution and have not resulted in any recent avalanche activity.

Weather Summary

Thursday Night

Cloudy with 0 to 2 cm of snow. 0 to 10 km/h south ridgetop wind. Treeline temperature -5 °C.

Friday

Cloudy with 0 to 2 cm of snow. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -3 °C (above-freezing temperatures at treeline may occur in the south, around the Squamish area).

Saturday

Cloudy with 5 to 10 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -3 °C.

Sunday

Cloudy with 5 to 10 cm of snow. 10 to 30 km/h west ridgetop wind. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Avoid areas where the snow feels stiff and/or slabby.

Regions covered