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Avalanche Forecast

Archived

Mar 23rd, 2026–Mar 24th, 2026

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

Regions

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

Up to 30 cm of new snow & strong winds will build reactive slabs at upper elevations.

The danger will rise as new snow accumulates.

Confidence

Moderate

  • We are uncertain about forecast precipitation amounts.
  • We are uncertain due to variable freezing levels.

Avalanche Summary

No recent avalanches have been reported, but incoming precipitation from Tuesday’s storm is expected to significantly increase the likelihood of avalanche activity.

If you are heading into the backcountry, consider sharing your observations and posting a MIN.

Snowpack Summary

20 to 30 cm of new snow is expected to accumulate at upper elevations by the end of Tuesday, accompanied by strong southerly winds. The snow may switch to rain below 1400 m by the late afternoon.

The new snow will be falling on 5 to 15 cm of recent snow that is covering a widespread, thick and hard crust that is present right to mountaintops.

The snowpack below the crust is strong and bonded with no layers of concern.

Weather Summary

Monday Night
Mostly cloudy. 2 to 7 cm of snow at treeline, possible rain below. 20 km/h south ridgetop wind. Treeline temperature -1 °C. Freezing level 1350 m falling to 900 m.

Tuesday
Cloudy. 10 to 25 cm of snow, possible rain below 1400 m in the afternoon. 60 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level rising to 1500 m.

Wednesday
Coudy. 15 to 35 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 900 m.

Thursday
Cloudy. 5 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.


More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • As the storm slab problem worsens, the easy solution is to choose more conservative terrain.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

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.