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Avalanche Forecast

Archived

Dec 11th, 2024–Dec 12th, 2024

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

Regions

Northwest Coastal, Boundary, Kitimat, Rupert, Shames, Stewart.

New storm slabs may build during the day.

If you're seeing less than 10 cm of new snow the danger is likely one step lower.

Confidence

Low

Avalanche Summary

No new avalanches have been reported since before last weekend.

Please consider submitting your observations to the Mountain Information Network.

Snowpack Summary

Expecting 10 to 20 cm of new snowfall by the end of the day Thursday. With larger amounts to the west and the north. Falling on around 15 cm of soft snow over a thick rain-crust from late last week.

The remainder of the snowpack is strong, with various hard layers and crusts.

Weather Summary

Wednesday Night

Partly cloudy. 15 to 35 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.

Thursday

Cloudy with 10 to 20 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Friday

Mostly cloudy with 1 to 2 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Saturday

Cloudy with 5 to 10 cm of snow. 20 km/h east switching to west ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Watch for fresh storm slabs building throughout the day.
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.