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Archived

Avalanche Forecast

Apr 8th, 2025–Apr 9th, 2025
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
1: Low
The avalanche danger rating below treeline will be low
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

Regions: Bonnington, Grohman, Kokanee, Kootenay Boundary, Kootenay Pass, Norns, Rossland, Ymir.

Storm slabs need time to settle and bond. The best and safest riding will be in high elevation spots, unaffected by the wind.

Confidence

Moderate

Avalanche Summary

On Monday, there were numerous, small, natural and rider-triggered wet loose avalanches, up to size 1.5.

Snowpack Summary

Snowfall is expected to continue overnight, easing Wednesday morning. Bringing expected storm totals to 30 to 50 cm. The new snow is likely sitting on a crust up high or moist snow down low.

The upper snowpack is wet, with several softening crusts. Several weak layers from early March, mid-February, and late January can be found in the mid and lower snowpack.

The remainder of the snowpack is generally well settled.

Weather Summary

Tuesday Night

Cloudy with 5 to 10 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Wednesday

Cloudy. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1800 m.

Thursday

A mix of sun and cloud. 30 to 40 km/h south ridgetop wind. Treeline temperature +2 °C. Freezing level 2500 m.

Friday

A mix of sun and cloud. 20 km/h southwest ridgetop winds. Treeline temperature 0 °C. Freezing level 2000 m.

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.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.

Avalanche Problems

Storm Slabs

New storm snow may not stick well to the underlying crust. It needs time to bond. Slabs will be deeper and more easily triggered on slopes lee to the wind.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5

Loose Wet

Low elevation snow may be soaked by rain. Use caution on steep features and if the sun pokes out.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood: Possible

Expected Size: 1 - 2