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Archived

Avalanche Forecast

Feb 6th, 2024–Feb 7th, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Bonnington, Crawford, Flathead, Kokanee, Kootenay Boundary, Kootenay Pass, Lizard, Lizard-Flathead, Moyie, Norns, Retallack, Rossland, South Okanagan, St. Mary, Ymir.

New snow continues to incrementally build over a crust. Keep an eye out for signs of instability, as you transition into open terrain in the alpine and treeline where wind slabs may linger.

Confidence

No Rating

Avalanche Summary

There were a few skier triggered size 1 wind slab and dry loose avalanches reported from steep terrain on Monday.

Snowpack Summary

Roughly 20 cm of new snow, with some local hot spots closer to 30 cm has been incrementally building over a crust at most elevations. Lower elevation surface snow is likely moist or wet depending on recent freezing levels.

A layer of facets (and small surface hoar in some areas) is buried 30-60 cm deep and a layer of facets sitting on a crust is buried 80-100 cm deep. While previous warming and subsequent cooling have likely helped to strengthen these layers, we will continue to monitor them for signs of reactivity.

Weather Summary

Tuesday Night

Mainly cloudy with 3 to 5 cm of snow. Wind south 10 to 15 km/h. Treeline temperature -4 °C.

Wednesday

Mainly cloudy with trace amounts of snow. Wind southwest 10 to 15 km/h. Treeline temperature -2 °C.

Thursday

Mainly cloudy with isolated flurries, and trace accumulation. Wind northwest 20 to 25 km/h. Treeline temperature -2 °C.

Friday

Mainly cloudy, with 2 to 3 cm accumulation. wind west 20 to 30 km/h. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Avalanche Problems

Wind Slabs

New snow is being redistributed by south winds and may create fresh wind slabs in exposed lee terrain. Wind slabs from easterly winds may still be reactive.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2