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Archived

Avalanche Forecast

Jan 1st, 2025–Jan 2nd, 2025
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
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

Regions: Birkenhead, Duffey, South Chilcotin, South Coast Inland, Stein, Taseko.

Carefully assess for reactive wind slabs and blowing snow before committing to steep slopes at higher elevations.

Confidence

Moderate

Avalanche Summary

A size 2 wind slab avalanche was reported on Tuesday in the Duffey area. It was triggered from a deeper, loaded pocket near a ridgetop on a northerly aspect. Check out the MIN report here.

Snowpack Summary

Generally low-density snow on the surface with minimal wind effect in all but exposed alpine terrain.

A thin crust exists in the upper snowpack, up to 1900 m, particularly in sun-affected terrain.

Another crust is buried 60 to 100 cm deep, and in sheltered terrain, a layer of surface hoar may exist just above it. There is uncertainty over its reactivity. It is more likely to be a concern in wind-affected, thin, and rocky start zones at higher elevations.

Snow depths at treeline are roughly 100 to 150 cm.

Weather Summary

Wednesday Night

Mostly clear skies. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Thursday

Mostly cloudy with 0 to 2 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Friday

Mostly cloudy with 0 to 2 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -7 °C.

Saturday

Mostly cloudy with 0 to 2 cm of snow. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Pay attention to isolated wind affected features in the alpine, as well as cross-loaded features at treeline.
  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.
  • Keep in mind a buried crust offers an excellent bed surface for avalanches.

Avalanche Problems

Wind Slabs

Reactive wind slabs may linger in steep exposed terrain around ridge crests, convex rolls, and cross-loaded slopes.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2