Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Apr 11th, 2024–Apr 12th, 2024

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

Regions

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

Assess for wind slabs at higher elevations.

Confidence

Moderate

Avalanche Summary

We haven't received reports of recent avalanche activity. Looking forward, human-triggering of wind slabs remains possible in steep lee terrain features at higher elevations.

Please consider submitting to the Mountain Information Network if you are getting out in the backcountry.

Snowpack Summary

Around 10 to 20 cm of new snow accumulated with strong southerly wind. The storm formed wind slabs in lee terrain features at higher elevations. The precipitation fell as rain below 1100 m.

The remainder of the snowpack is strong.

There is insufficient snow to form avalanches for most below treeline elevations.

Weather Summary

Thursday Night

Mostly cloudy with 2 to 5 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Friday

Mostly cloudy. 10 km/h north ridgetop wind. Treeline temperature 2 °C. Freezing level 1500 m.

Saturday

Mostly clear skies. 10 km/h north ridgetop wind. Treeline temperature 5 °C. Freezing level 2500 m.

Sunday

Clear skies. 20 km/h west ridgetop wind. Treeline temperature 5 °C. Freezing level 2300 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.
  • If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

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.