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Archived

Avalanche Forecast

Jan 11th, 2025–Jan 12th, 2025
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
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
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.

Stay off wind-loaded slopes and be mindful of overhead hazard, especially during periods of strong sun.

Confidence

Moderate

Snowpack Summary

10 to 30 cm of new snow arrived Friday night with strong southeast switching to northwest wind creating wind-affected surfaces and wind slabs on a variety of aspects in exposed terrain.

This new snow overlies a sun crust on steep south-facing slopes, faceted snow or large surface hoar in sheltered areas, and wind-affected surfaces in exposed areas.

A second crust is buried 60 to 100 cm deep and may have a layer of surface hoar sitting above it. Recent tests show this layer as unreactive.

The remainder of the mid and lower snowpack is well-settled.

Snow depths at treeline are roughly 100 to 150 cm.

Weather Summary

Saturday Night

Mostly clear with lingering valley cloud. 15 to 30 km/h northwest ridgetop wind. Treeline temperature -6 °C.

Sunday

A mix of sun and cloud. 15 to 30 km/h northeast ridgetop wind. Treeline temperature -6 °C.

Monday

A mix of sun and cloud. 30 to 50 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level rising to 2500 m.

Tuesday

A mix of sun and cloud. 15 to 40 km/h west ridgetop wind. Treeline temperature 0 °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.
  • Be aware of the potential for large avalanches due to buried surface hoar.
  • Limit exposure to steep, sun exposed slopes, especially when the solar radiation is strong.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Avalanche Problems

Wind Slabs

Shifting winds have created slabs on a variety of aspects in wind-loaded terrain.

Strong sun may increase the reactivity of wind slabs on steep, sun-affected slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2