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Archived

Avalanche Forecast

Dec 12th, 2024–Dec 13th, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Brandywine, Garibaldi, Homathko, Sea To Sky, Spearhead.

If snowfall exceeds 20 cm, bump the danger rating to "Considerable."

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the last 2 days. A natural avalanche cycle is expected this weekend.

Snowpack Summary

The incoming storm snow will fall on a variety of surfaces. Surface hoar in wind-sheltered terrain at treeline and below, a thin melt-freeze on south-facing slopes, and old storm snow at higher elevations. A crust can be found down 5-30 cm. The mid and lower snowpack is well-settled with no layers of concern.

Weather Summary

Thursday Night

Cloudy with less than 5 cm snow. 10 to 30 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1100 m.

Friday

Snow 5 to 20 cm. 25 to 45 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.

Saturday

Snow up to 30 cm by the afternoon. 20 to 60 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1400 m.

Sunday

Snow 5-10 in the morning. 10-20 km/h ridgetop winds. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.

Avalanche Problems

Storm Slabs

Storm slabs may develop where new snowfall amounts are greater than 20 cm.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5