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Avalanche Forecast

Archived

Apr 9th, 2025–Apr 10th, 2025

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

Regions

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

Danger will increase throughout the day on Thursday with the arrival of new snow and extreme wind.

Confidence

Moderate

Avalanche Summary

Recent reports have been limited to small loose avalanches, but wind slab avalanches are expected to be very likely in the alpine with the incoming storm on Thursday.

Snowpack Summary

New snow amounts will increase with elevation and be heavily wind-affected in open areas. Recent snow from the past week (10 to 30 cm) has quickly bonded to underlying wet snow and crust layers.

Lower elevations are melting out quickly.

Weather Summary

Wednesday Night

Cloudy with 2 to 5 cm of snow. 40 km/h southeast ridgetop wind. Treeline temperature 1- °C. Freezing level climbing from 1200 to 1500 m.

Thursday

Cloudy with 20 to 30 cm of snow above 1200 m. 70 km/h southeast ridgetop wind. Treeline temperature -1 °C. Freezing level around 1500 m.

Friday

Mostly cloudy with 5 to 10 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1000 m.

Saturday

Sunny. 30 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded terrain features.
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.
  • Avalanche danger is expected to increase throughout the day.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.