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Archived

Avalanche Forecast

Jan 6th, 2025–Jan 7th, 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
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

Fresh wind slabs are expected to build on Tuesday.Be careful as you transition into wind-affected terrain.

Confidence

Moderate

Avalanche Summary

On Monday, a few small size 1 loose and slab avalanches were reported in the Babines. These were likely triggered by sun exposure and warming, as they all occurred on south-facing slopes. Since the middle of last week, no other avalanches have been reported, though recent observations have been very limited.

Snowpack Summary

2 to 10 cm of new snow is expected to fall Tuesday, accompanied by extreme southwesterly ridgetop wind. This new snow may cover a thin sun crust on south and westerly slopes, and otherwise add to the 10 to 20 cm of recent snowfall elsewhere.

We expect reactive new wind slabs to develop throughout Tuesday on leeward north through east-facing slopes brought on by the new snow and wind.

A noticeable persistent weak layer is buried 40 to 80 cm. This layer is made of weak facets overlying a crust. With additional new snow and wind-loading throughout Tuesday and into Wednesday, we expect this layer may become more reactive.

The remainder of the snowpack is well-settled and bonded.

Weather Summary

Monday Night

Partly cloudy. 60 to 75 km/h southwest ridgetop wind. Treeline temperature 0 °C.

Tuesday

Cloudy with 2 to 10 cm of snow. 75 to 95 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Wednesday

Overnight moderate snowfall: 5 to 20 cm snow by morning. Mix of sun and cloud daytime. 30 to 50 km/h west ridgetop wind. Treeline temperature -2 °C.

Thursday

Cloudy with 2 to 8 cm of snow. 70 to 80 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.
  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
  • Be aware of the potential for large avalanches due to buried weak layers.

Avalanche Problems

Wind Slabs

New snow and extreme ridgetop winds are expected to build new wind slabs. Watch for blowing snow and avoid leeward slopes.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2

Persistent Slabs

A widespread crust with weak crystals overtop is buried 40-80 cm deep. While this layer exists on all aspects, it's most likely to be triggered on wind-loaded slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 2.5