Avalanche Forecast
Regions: East Island, North Island, South Island, Vancouver Island, West Island.
UPDATED AT 6:35 AM FRIDAY.
Precipitation amounts have backed off, but dangerous conditions are still expected above the rain-snow line.
Confidence
Moderate
Avalanche Summary
On Thursday, avalanche control teams near Courtenay conducted explosive cornice control and initiated a large (size 2.5) Cornice and loose wet avalanche.
Evidence of a widespread avalanche cycle up to size 3 was reported on Wednesday. The cycle happened early this week.
Snowpack Summary
New snow of up to 50 cm overlies a widespread crust found above 1100m. Below this elevation expect the upper snowpack to remain wet and unconsolidated with rain. New snow and strong south east wind will create deeper and more reactive slabs on northâand east-facing slopes, especially near ridge crests.
A robust crust, formed in early March, can be found in the mid-pack. The snow above is well bonded to this crust.
Below this, the snowpack is well consolidated and strong.
Weather Summary
Thursday Night
Mostly cloudy with 10 to 20 cm falling as snow above 1000 m. 40 to 60 km/h southeast ridgetop winds. Treeline temperature -2 °C. Freezing level 1100 m.
Friday
Mostly cloudy with 15 to 30 cm falling as snow above 1000 m. 50 km/h south ridgetop winds. Treeline temperature -2 °C. Freezing level 1100 m.
Saturday
Cloudy with 5 to 15 cm falling as snow above 1000 m. 20 to 40 km/h south ridgetop winds. Treeline temperature -1 °C. Freezing level 1200 m.
Sunday
Clearing and Sun. No new precipitation. 20 to 40 km/h southeast ridgetop winds. Treeline temperature 1 °C. Freezing level 1500 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Minimize exposure during periods of heavy loading from new snow and wind.
- Be alert to conditions that change with elevation, aspect, and exposure to wind.
- Wind slabs are most reactive during their formation.
- Avoid freshly wind-loaded terrain features.
Avalanche Problems
Storm Slabs
A building storm slab overlies a widespread melt freeze crust on terrain above 1200 m. Expect new windslabs on north aspect terrain to be sensitive to human triggering through this storm period.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Likely
Expected Size: 1 - 2
Loose Wet
Wet loose avalanches are possible at lower elevations where the precipitation falls as rain.
Aspects: All aspects.
Elevations: Below Treeline.
Likelihood: Possible
Expected Size: 1 - 2