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Archived

Avalanche Forecast

Apr 12th, 2025–Apr 13th, 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
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: Blue River, Cariboos, Clearwater, Clemina, East Kakwa, Kakwa, McBride, McGregor, North Rockies, Premier, Quesnel, Renshaw, Robson, Sugarbowl, Tumbler.

Reactive wind slabs still exist at higher elevations, with potential to step down to buried weak layers.

Wind has varied throughout the region; assess your local conditions as you travel.

Confidence

Moderate

Avalanche Summary

Widespread natural wind slab activity was reported on Friday from strong westerly winds. Several were observed to have stepped down to buried weak layers, producing avalanches to size 3.5. Cornice falls were also observed as triggers.

Snowpack Summary

Upper elevations hold wind affected surfaces. A crust likely exists on the surface on south facing slopes to mountain top, and on all aspects below 1900 m.

A layer of surface hoar, facet, and crust layer is buried 60 to 120 cm deep. Recent avalanches have likely stepped down to this layer, it also remains a possibility for triggering with heavy loads like cornice falls.

The lower snowpack is generally well-settled and strong in most areas.

Weather Summary

Saturday Night

Mostly cloudy. 30 to 40 km/h northwest ridgetop wind. Freezing level drops to valley bottom.

Sunday

Mostly clear skies with 20 to 30 km/h westerly ridgetop winds. Treeline temperature -1 °C. Freezing levels reach 2000 m.

Monday

Partly cloudy. 30 to 40 km/h southwest ridgetop winds. Treeline temperature +1 °C. Freezing levels reach 2200 m.

Tuesday

Partly cloudy with flurries. 40 to 50 km/h west ridgetop winds. Treeline temperature -3 °C. Freezing levels reach 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Cornice failures could trigger large and destructive avalanches.
  • Be mindful that deep instabilities are still present in the snowpack.

Avalanche Problems

Wind Slabs

Reactive wind slabs linger on north and east facing slopes at upper elevations. Wind slabs may step down to persistent weak layers producing very large avalanches.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5