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Avalanche Forecast

Archived

Jan 3rd, 2025–Jan 4th, 2025

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

Regions

Sasquatch, Sasquatch, Coquihalla, Harrison-Fraser, Manning, Skagit.

Watch for wind slabs in leeward terrain features at upper elevations.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported.

If you go out in the mountains, please consider sharing any observations on the Mountain Information Network (MIN).

Snowpack Summary

Up to 30 cm of low density surface snow has seen some redistribution by moderate east to southwest winds.

A substantial crust up to 30 cm thick sits 40 to 90 cm deep, well-bonded to surrounding snow. The mid and lower snowpack is generally well consolidated, with several well-bonded crusts scattered throughout.

Treeline snow depths range from roughly 150 to 220 cm around the Coquihalla and 100 to 150 cm around Manning Park.

Weather Summary

Friday night

Cloudy with around 5 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Saturday

Cloudy with flurries starting in late afternoon but no significant accumulation. Southwest ridgetop wind increasing 30 to 40 km/h. Treeline temperature -4 °C.

Sunday

10 to 20 cm of snow. Southwest wind easing 60 to 20 km/h. Treeline temperature -2 °C.

Monday

Sunny. 20 to 30 km/h east ridgetop wind. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • 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.