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Avalanche Forecast

Archived

Dec 23rd, 2023–Dec 24th, 2023

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

Regions

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

Exercise caution at higher elevations, you should anticipate the presence of storm slabs. Open alpine areas below ridges are primed to harbor newly formed storm slabs.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported before 4pm on Saturday.

If you do head into the backcountry please consider submitting observations and/or photos on the Mountain Information Network.

Snowpack Summary

With the recent cooling temperatures, we expect the past new storm snow to have effectively bonded to the old surfaces. Anticipate past wind to have stripped south and west-facing ridges down to frozen crusts, while deeper and potentially more reactive slabs have formed on north and east-facing slopes.

Below treeline, you'll likely find dirt, shallow, heavy, moist or wet snow.

The mid and lower snowpack is made up of a series of crusts and rounded grains. The snowpack is generally well consolidated.

Overall, the snow depth remains shallow, creating challenging travel conditions and hiding early season hazards just below the snow surface.

Weather Summary

Saturday Night

Partly cloudy. No new snow expected. Treeline temperature around -4 °C. Freezing level around 600 m. Light southwest ridgetop wind

Sunday

Partly cloudy. No new snow expected. Treeline temperature around -1 °C. Freezing level rising to 1000 m, possible temperature inversion. Strong south ridgetop wind.

Monday

Cloudy. Heavy snow and rain expected. Freezing level rising to 1200-1500 m. Treeline temperature around 0 °C. Moderate gusting strong, south east ridgetop wind.

Tuesday

Cloudy. Heavy snow and rain that is expected to cease in the am. Freezing level 1500-2000 m. Treeline temperature around 4 °C. Moderate gusting strong, south east ridgetop wind.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • Be cautious of buried obstacles especially below treeline.

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.