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Avalanche Forecast

Archived

Jan 4th, 2025–Jan 5th, 2025

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, 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

North Columbia, South Columbia, Blue River, Clearwater, Premier, Clemina, Esplanade, Jordan, North Monashee, North Selkirk, Central Selkirk, Gold, Whatshan.

Windslabs are reactive and can be triggered by riders.

Avoid riding in recently loaded terrain.

Confidence

High

Avalanche Summary

Several skier triggered and some natural windslab avalanches were reported on Friday. Several loose dry avalanches have been reported in steep terrain since Thursday. Windslabs will continue to be reactive to rider triggers.

Snowpack Summary

20 to 40 cm of recent snow overlies a layer of surface hoar (feathery crystals) in sheltered areas and a crust on south-facing slopes. Windslabs can be found in exposed terrain in alpine and treeline elevations on all aspects.

Another layer of surface hoar, crust and/or facets exists 90 to 160 cm deep. Reports indicate this layer is hard to find and likely not a concern north of Highway 5. South of Highway 5 it may linger on north through east aspects between 1700 to 2300 m.

Snow depth at treeline ranges from 120 to 250 cm.

Weather Summary

Saturday night

Cloudy. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -7°C.

Sunday

Cloudy with 0 to 5 cm of snow. 10 to 20 km/h west ridgetop winds. Treeline temperature -6 °C.

Monday

Mostly cloudy with 0 to 5 cm of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -7 °C.

Tuesday

Scattered cloud. 30 to 50 km/h southwest ridgetop winds. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Stay off recently wind loaded slopes until they have had a chance to stabilize.
  • Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.

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.