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Avalanche Forecast

Archived

Dec 7th, 2024–Dec 8th, 2024

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

Check how overnight snowfall has bonded to the surface below.

Back off if you encounter signs of instability.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the past few days, but field observations are very limited.

If you are going out in the backcountry, please consider filling out a Mountain Information Network (MIN) report.

Snowpack Summary

Up to 30 cm of new snow overlies a moist, rain-saturated snowpack. A thick melt-freeze crust may be found 45 to 60 cm from the surface.

Snow depths at treeline vary across the region from 230 cm near Mt. Washington to 130 cm near Mt Cain.

Weather Summary

Saturday Night

Cloudy with 5 to 30 cm of snow. 50 to 70 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Sunday

Clearing with up to 5 cm of snow in the morning. 25 to 50 km/h northwest ridgetop wind. Treeline temperature 0 °C.

Monday

Mainly clear. 10 to 25 km/h northwest ridgetop wind. Treeline temperature -1 °C.

Tuesday

A mix of sun and cloud. 5 to 25 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.

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.