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Archived

Avalanche Forecast

Dec 6th, 2024–Dec 7th, 2024
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
4: High
The avalanche danger rating below treeline will be high
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: Blue River, Cariboos, Central Selkirk, Clearwater, Clemina, Esplanade, Gold, Jordan, North Columbia, North Monashee, North Okanagan, North Selkirk, Quesnel, Shuswap, South Columbia.

Avoid avalanche terrain.

Large natural and human triggered avalanches are likely.

Confidence

Moderate

Avalanche Summary

One size 1.5 natural wind slab avalanche was observed on a steep north facing alpine feature on Thursday.

Several wet loose avalanches up to size 2 were observed on steep south facing terrain on Thursday as well.

Snowpack Summary

By the end of the day on December 7th up to 50 cm of new snow may have fallen. This new snow will overlie a variety of surfaces including a sun crust on steep south aspects and Surface hoar on northerly aspects.

The mid snowpack is generally well settled, with an early November crust buried 50 to 100 cm deep.

Snow depths at treeline range from 100 to 170 cm and decrease quickly at lower elevations.

Weather Summary

Friday Night

Cloudy with up to 30 cm of snow expected.  40 to 60 km/h southwest ridgetop wind. Treeline temperature -4°C.

Saturday

Cloudy with 10 to 20 cm of snow expected, rain possible at lower elevations. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Sunday

Mostly cloudy with isolated flurries. 20 to 30 km/h west ridgetop wind. Treeline temperature -6 °C.

Monday

Mostly cloudy with trace amounts of snow possible. 15 to 30 km/h northwest ridgetop wind. 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.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for large avalanches due to buried surface hoar.

Avalanche Problems

Storm Slabs

New storm and wind slabs will form throughout the day. The largest and most reactive slabs will likely be found on north and east aspects at higher elevations.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1.5 - 3