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Archived

Avalanche Forecast

Mar 27th, 2025–Mar 28th, 2025
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
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
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

Regions: North Shore, Powell River, Sasquatch, Sky Pilot, South Coast, Stave, Tetrahedron.

Reactive storm slabs are building at treeline and above.

Avoid avalanche terrain during periods of rapid loading from new snow or rain.

Confidence

Moderate

Avalanche Summary

Reports have been very limited during the stormy period. Several wet loose avalanches have been reported acorss the region generally in the small (size 1-1.5) range.

We expect with further heavy snowfall accumulating overnight and through Friday at upper elevations, that storm slabs will be reactive.

Snowpack Summary

Recent rain and warming to mountaintop has saturated the upper snowpack and will likely form a crust as freezing levels drop and new snow falls overtop. 40 to 70 cm of new snow is expected overnight and through Friday, with the highest precipitation forecast for the central region. (The hazard may only be considerable in areas that receive accumulations of 40 cm or less). These conditions will build reactive new storm slabs at upper elevations. Expect deeper and more reactive deposits on northerly slopes due to forecast strong southerly wind. Lower elevations will have a moist or wet snowpack.

Weather Summary

Thursday Night

Cloudy, with 10 to 20 cm of snow above 1500 m, potential rain below. Highest amounts for the North Shore. 35 to 50 km/h southeast ridgetop winds. Treeline temperature 0 °C. Freezing level around 1500 m.

Friday

Cloudy with 30 to 50 cm of snow above 1000 m, potential rain below. Highest amounts for the North Shore. 40 to 50 km/h south ridgetop winds. Treeline temperature -1 °C. Freezing level rising to 1400 m.

Saturday

Cloudy with 10 to 25 cm of snow above 1200 m, potential rain below. 35 km/h southwest ridgetop winds. Treeline temperature -2 °C. Freezing level rising to 1300 m.

Sunday

Sunny. 25 to 30 km/h southeast ridgetop winds. Treeline temperature +2 °C. Freezing level rising to 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Keep in mind that the high density of wet avalanches can make them destructive.
  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.

Avalanche Problems

Storm Slabs

40 to 70 cm of new storm snow may accumulate at treeline and above by Friday afternoon. Expect to find deeper deposits from wind on northerly slopes.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Very Likely

Expected Size: 1 - 2.5

Loose Wet

Wet loose avalanches are possible where precipitation falls as rain or the upper snowpack is moist or wet.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood: Likely

Expected Size: 1 - 2