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Avalanche Forecast

Archived

Dec 13th, 2024–Dec 14th, 2024

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

Regions

South Coast, Powell River, Tantalus, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron, Harrison-Fraser.

Heavy snow, rain, and strong winds will keep avalanche danger High.

Choose low-angle, non-avalanche terrain with no overhead hazard when planning your day.

Confidence

High

Avalanche Summary

There have been no recent avalanche reports in the region.

Increasing snowfall mixed with rain and strong southwest wind are certain to induce a natural avalanche cycle.

If you are going out in the backcountry, please consider sharing your observations to the Mountain Information Network (MIN).

Snowpack Summary

New snow mixed with rain will bury a firm crust at treeline and will become increasingly unstable as the new snow rapidly gets deeper. North through east-facing slopes in the alpine may have buried surface hoar which sits over moist snow.

Snow depths at treeline vary across the region from 65 cm to 150 cm.

Weather Summary

Friday Night

Snow 20 to 40 cm. 25 to 60 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.

Saturday

Snow at higher elevations and rain 50 to 75 mm. 40 to 90 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1200 m.

Sunday

Snow 1 to 2 cm. 15 to 1 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 700 m.

Monday

Snow 1 to 5 cm. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level 700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Avalanche danger will rapidly increase if snow switches to rain.

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.