Avalanche Forecast

Issued: Dec 18th, 2024 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada Avalanche Canada, Avalanche Canada

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Continued light snowfall and moderate to strong west wind will keep wind slabs as the primary concern.

Summary

Confidence

Low

Avalanche Summary

No new avalanches have been reported in the past few days.

Data is very limited in this region. Please submit your observations to the MIN (Mountain Information Network)

Snowpack Summary

5 to 15 cm of new snow accumulated Tuesday night and Wednesday . At upper elevations, southwesterly winds have redistributed snow to lee features.

A surface hoar layer is now buried 40 to 70 cm and is most prevalent from 1700 to 2200 m. This layer has not been reactive to rider traffic, however we will continue to monitor it as more snow loads above it. Where there's no surface hoar, a crust is found at this layer boundary.

Weather Summary

Wednesday Night

Cloudy with scattered flurries, accumulation 3 to 6 cm. 30 to 50 km/h west ridgetop winds. Treeline temperature -5 °C.

Thursday

Mainly cloudy with sunny breaks and scattered flurries in the afternoon. 35 to 60 km/h southwest ridgetop winds. Treeline temperature -4 °C.

Friday

Mainly cloudy with flurries, accumulation 5-10 cm. 30 to 50 km/h southwest ridgetop winds. Treeline temperature -2 °C.

Saturday

Mainly cloudy with isolated flurries. 30 to 60 km/h southwest ridgetop winds. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.

Problems

Wind Slabs

An icon showing Wind Slabs

Investigate for wind-loaded pockets, especially around ridges and open bowls.

A currently unreactive surface hoar layer is buried 30 to 60 cm. We are tracking this layer as reactivity may increase as more snow loads into a slab above.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Dec 19th, 2024 4:00PM

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