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Avalanche Forecast

Archived

Feb 17th, 2025–Feb 18th, 2025

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
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

Kitimat, Nass, Rupert, Seven Sisters, Shames, Howson.

Periods of low hazard are a good time to explore new areas.Continue to verify conditions as you travel and seek out terrain sheltered from the wind for the best riding.

Confidence

High

Avalanche Summary

Several size one storm slab and dry loose avalanches were reported on Sunday. These avalanches ran on a layer of facets and surface hoar just beneath the new snow.

Snowpack Summary

3-5 cm of new snow now overlies a previously heavily wind effected surface. Faceting of the upper snowpack is widespread, and surface hoar up to 8 mm has been buried beneath the new snow at the treeline and below.

Two layers of surface hoar exist between 40 cm and 60 cm beneath the snow surface, there hasn't been much avalanche activity on these layers.

A layer of facets on top of a crust from early December is buried 100 to 200 cm deep. This layer is generally not a concern in this region.

Weather Summary

Monday Night

Mostly cloudy. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -6 °C.

Tuesday

Mix of sun and cloud. 0 to 10 km/h variable ridgetop wind. Treeline temperature -3 °C. Freezing Level 500m

Wednesday

Cloud. 0 to 10 km/h northeast wind. 0-3 cm of snow. Treeline temperature -2 °C.Freezing Level 400m

Thursday

Cloudy with furries. 8- 10 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -5 °C. Freezing level 1000 meters

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.

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.