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Avalanche Forecast

Mar 29th, 2024–Mar 30th, 2024
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
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, Crawford, Grohman, Kokanee, Kootenay Boundary, Kootenay Pass, Moyie, Norns, Retallack, Rossland, South Okanagan, St. Mary, Valhalla, Ymir.

30 to 50 cm of recent snow has formed storm slabs that are reactive to human triggers, especially in wind affected terrain.

Use small low consequence slopes to test the bond of the new snow.

Confidence

Moderate

Avalanche Summary

Numerous natural and rider triggered storm slab avalanches up to size 2 were reported on all aspects/elevations on Thursday.

Snowpack Summary

30 to 50 cm of recent snow overlies a crust on all but north facing aspects at treeline and above where a weak layer of surface hoar may be present.

A widespread crust with facets above is buried 80 to 180 cm deep. Steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the places where it may still be possible to trigger this layer with large loads.

Weather Summary

Friday Night

Partly cloudy with isolated flurries, 0 to 10 cm snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -5° C. Freezing level valley bottom.

Saturday

Sunny. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -1° C. Freezing level 1800 m.

Sunday

Sunny. 20 to 30 km/h north ridgetop wind. Treeline temperature 0° C. Freezing level 1900 m.

Monday

Sunny. 20 to 30 km/h northwest ridgetop wind. Treeline temperature 5° C. Freezing level 2600 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Use small low consequence slopes to test the bond of the new snow.
  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • If triggered loose wet avalanches may step down to deeper layers resulting in larger avalanches.
  • Cornice failure may trigger large avalanches.

Avalanche Problems

Storm Slabs

30 to 50 cm of recent snow has formed storm slabs that are reactive to human triggers, especially in wind affected terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5

Loose Wet

Expect the sunshine to trigger wet loose avalanches on sunny aspects at all elevations.

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

Elevations: All elevations.

Likelihood: Very Likely

Expected Size: 1 - 1.5