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Archived

Avalanche Forecast

Dec 8th, 2024–Dec 9th, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Birkenhead, Brandywine, Duffey, Garibaldi, Harrison-Fraser, Homathko, Sea To Sky, South Chilcotin, South Coast Inland, Spearhead, Stein, Taseko.

If you get high enough to find soft, dry snow, you're high enough to find heightened avalanche conditions on specific terrain features.

Confidence

High

Avalanche Summary

Over the weekend, explosive and skier controlled storm slabs were reported up to size 2. On Sunday, a group of ice climbers had a close call with a loose wet avalanche out of cliffy terrain near Lillooet.

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

Snowpack Summary

In the alpine, 20 to 40 cm of snow from the weekend is expected to bond well. There are no layers of concern in the well-settled snowpack.

Below 1800 m, there may be a dusting of snow overtop a crust capping a rain-soaked snowpack.

Snow depths at treeline are around 100 cm near Whistler, and 70 cm in the Duffy.

Weather Summary

Sunday Night

Clear. Calm wind. Treeline temperature -4 °C. Freezing level 1000 m.

Monday

Sunny. <15 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 900 m.

Tuesday

A mix of sun and cloud. 10 to 20 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1000 m with an above freezing layer 2000-2500m.

Wednesday

Mostly cloudy. 15 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m near the coast, 1000 m further inland.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be alert to conditions that change with aspect and elevation.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

Avalanche Problems

Wind Slabs

Slabs may be possible to trigger at high elevations where dry snow has been loaded into leeward terrain features.

Aspects: North, North East, East, South East, West, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2