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Archived

Avalanche Forecast

Feb 8th, 2023–Feb 9th, 2023
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Bonnington, Grohman, Kootenay Boundary, Kootenay Pass, Moyie, Norns, Rossland, South Okanagan, St. Mary, Ymir.

New snow from earlier in the week will take a couple of days to settle and bond. In the meantime also pay attention to the direction of the wind as you travel through wind exposed areas – there is a lot of snow available to build wind slabs.

Confidence

Moderate

Avalanche Summary

On Tuesday there were a few reports of skier triggered storm slab avalanches to size 1 and 1.5. As well, there were explosives controlled avalanches to size 2 and 2.5 on southerly aspects between 1900 and 2100m.

Snowpack Summary

20-30 cm of new snow is being redistributed by southwest winds and sits on top of previously formed wind slabs in exposed terrain.

In terrain sheltered from the wind, small surface hoar crystals may be found 50-90 cm from the surface. At a similar depth, you may also find a melt-freeze crust on sun-exposed slopes and below 1900 m.

Deeper weak layers in the snowpack have not recently produced avalanches, but they may become reactive again if there is a rapid change in the weather.

The lower snowpack contains weak and faceted grains.

Weather Summary

Wednesday Night

Mainly cloudy with clear periods. Light to moderate southwest ridgetop wind. Treeline temperature around -7 °C.

Thursday

Mix of sun and cloud. Light to moderate southwest wind. Treeline temperatures around -4 °C.

Friday

Cloudy with scattered flurries, accumulation 2-5 cm. Moderate southwest ridgetop wind. Treeline temperature around -5 °C.

Saturday

Mostly cloudy. Light west ridgetop wind. Treeline temperature around -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Avalanche Problems

Storm Slabs

Storm slabs may be reactive to the weight of a rider. Deepest deposits may be found in lee terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2