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Avalanche Forecast

Archived

Jan 1st, 2025–Jan 2nd, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Coquihalla, Harrison-Fraser, Manning, Skagit.

Carefully assess for reactive wind slabs and blowing snow before committing to steep slopes at treeline and above.

Confidence

High

Avalanche Summary

No new avalanches have been reported.

Please share any reports or photos on the Mountain Information Network (MIN).

Snowpack Summary

Up to 30 cm of generally low-density snow sits atop a well-settled, consolidated mid-snowpack.

The lower snowpack consists of firm, compacted snow, with several older melt-freeze crusts scattered throughout.

Treeline snow depths range from roughly 150 to 200 cm around the Coquihalla and 100 to 150 cm around Manning Park.

Weather Summary

Wednesday Night

Partly cloudy. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Thursday

Cloudy with 2 to 5 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Friday

Cloudy with 5 to 10 cm of snow. 30 to 50 km/h south ridgetop wind. Treeline temperature -2 °C.

Saturday

Cloudy with 5 to 10 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.