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Avalanche Forecast

Archived

Dec 22nd, 2023–Dec 23rd, 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 unlikely, human triggered possible.
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.

7:15 AM Update: You may find developing slabs at higher elevations.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported before 4pm on Friday.

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

Snowpack Summary

Yesterday we saw moderate snowfall and rainfall accompanied by strong southwest winds and decreasing temperatures. Anticipate the wind stripping south and west-facing ridges down to frozen crusts, while deeper and more reactive slabs form on north and east-facing slopes.

Below treeline, you'll likely find dirt, or 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. A trace of snow expected. . Treeline temperature around -4 °C. Freezing level around 800 m. Light southwest ridgetop wind

Sunday

Partly cloudy. No new snow expected. Treeline temperature around 0 °C. Freezing level rising to 1200-1500 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. Extreme south or southwest ridgetop wind.

Tuesday

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • Be careful to keep storm day fever from luring you out into bigger terrain features.
  • 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.