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Archived

Avalanche Forecast

Apr 1st, 2025–Apr 2nd, 2025
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
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: Babine, Hudson Bay, Microwave-Sinclair, North Bulkley, South Bulkley, Telkwa.

Avoid slopes that have corniced ridgelines. Cornice failure may trigger large, persistent slab avalanches on the slope below.

Confidence

Moderate

Avalanche Summary

On Monday, a 2.5 persistent slab avalanche was observed at Hudson Bay Mountain on a northeast alpine slope, likely triggered by a cornice fall. Evidence of last week's avalanche cycle continues to be reported.

Higher north-facing slopes remain suspect for triggering persistent slabs, especially with heavy loads or in areas with variable snowpack depth. Where a thick, supportive surface crust is found, triggering avalanches on buried weak layers is unlikely.

Weather Summary

Tuesday Night

Partly cloudy. 15 to 30 km/h northwest ridgetop wind. Treeline temperature -6 °C. Freezing level at valley bottom.

Wednesday

Mix of sun and cloud. 20 to 40 km/h northwest ridgetop wind. Treeline temperature -2°C. Freezing level 1500 m.

Thursday

Mix of sun and cloud. 10 to 25 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1500 m.

Friday

Mix of sun and cloud. 20 to 40 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Avoid sun-exposed slopes, especially if the snow surface is moist or wet.

Avalanche Problems

Persistent Slabs

Facets and/or surface hoar buried 40 to 80 cm deep are most prominent on north-facing slopes in the alpine. Avoid areas with a thin or variable snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3

Cornices

As temperatures rise, large cornice falls will become a concern. They can potentially trigger persistent slab avalanches on the slopes below. Evidence of recent cornice falls has been reported in the region.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2.5