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Avalanche Forecast

Archived

Dec 5th, 2023–Dec 6th, 2023

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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Sea To Sky, South Coast, Brandywine, Garibaldi, Homathko, Powell River, Spearhead, Tantalus, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron.

Stable avalanche conditions exist wherever a thick surface crust is present

Confidence

Moderate

Avalanche Summary

A widespread natural avalanche cycle occurred during the peak of warming on Monday night. Reports suggest numerous avalanches sized 1 to 2.5.

If you're heading out in the backcountry, please consider sharing any observations on the Mountain Information Network

Snowpack Summary

A widespread surface crust has formed in the wake of the recent wet, warm storm. In high alpine terrain small amounts of dry snow overly the crust. Any previous layers of concern deeper in the snowpack should now be bridged by the crust.

Weather Summary

Tuesday Night

Cloudy with 2 to 5 cm of snow at higher elevations, southwest alpine winds 30 to 50 km/h, treeline temperature -1 °C, freezing levels around 1500 m.

Wednesday

Partly cloudy with trace precipitation, west alpine winds 10 to 30 km/h, treeline temperature -3 °C, freezing levels around 1100 m.

Thursday

Cloudy with up to 10 cm of snow, south alpine winds 20 to 40 km/h, treeline temperature -4 °C.

Friday

Mix of sun and cloud with trace precipitation, northwest alpine winds 20 to 40 km/h, treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Avoid areas where the snow feels stiff and/or slabby.

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.