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Avalanche Forecast

Archived

Dec 8th, 2024–Dec 9th, 2024

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

Be cautious in wind-loaded areas. Recently formed wind slabs may remain reactive to rider-triggering.

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 recent snowfall overlies a crust with a rain-soaked snowpack refreezing from the top down.

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

Weather Summary

Sunday Night

Mostly clear. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -1 °C.

Monday

Mostly clear. 5 to 20 km/h northwest ridgetop wind. Treeline temperature +2 °C.

Tuesday

A mix of sun and cloud. 15 to 40 km/h southwest ridgetop wind. Treeline temperature +1 °C.

Wednesday

Cloudy with 3 to 20 mm of precipitation. 50 to 80 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the crust.
  • 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

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.