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Avalanche Forecast

Archived

Apr 7th, 2025–Apr 8th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Vancouver Island, East Island, North Island, South Island, West Island.

Storm slabs are expected to be most reactive in wind-affected terrain at upper elevations.

Danger will be LOW in areas that receive less than 15 cm of new snow.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported.

Observations are currently very limited in the region. If you head into the backcountry, please consider submitting a MIN report.

Snowpack Summary

Forecast snow and southerly wind may form fresh storm slabs at upper elevations overnight and into midday Tuesday. As freezing levels rise during the day, we may see rain falling on the new snow. Below the new snow, there is a thick crust at upper elevations. At lower elevations, expect a rain-soaked snowpack.

The snowpack is strong and well-bonded, but melting out quickly at lower elevations.

Weather Summary

Monday Night

Cloudy with 5 to 20 cm of snow above 1000 m, possible rain below. Highest amounts forecast for the West Island. 30 to 40 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 1000 m.

Tuesday

Cloudy with 5 to 20 cm snow above 1300 m, possible rain below. Highest amounts forecast for the West Island. 20 to 35 km/h south ridgetop wind. Treeline temperature 1 °C. Freezing level rising to 1400 m.

Wednesday

Mostly cloudy with 5 to 15 cm of snow, possible rain below 1300 m. 20 to 30 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level rising to 1300 m.

Thursday

Cloudy with 20 to 30 mm of heavy rain, possible snow above 1500 m. 50 to 60 km/h south ridgetop wind. Treeline temperature +4 °C. Freezing level rising to 1600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for rapidly changing conditions during periods of heavy loading from new snow, wind, or rain.
  • Closely monitor how the new snow is bonding to the crust.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Keep in mind that the high density of wet avalanches can make them destructive.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.