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Avalanche Forecast

Dec 8th, 2024–Dec 9th, 2024
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Goat, Retallack, West Purcell, Whatshan.

Choose small, low consequence slopes.

Storm slabs will likely remain reactive to rider traffic due to the surface hoar beneath.

Confidence

Moderate

Avalanche Summary

On Saturday numerous storm slab avalanches up to size 1.5 were reported. These avalanches occurred on all aspects at treeline and below. We suspect the failure plane for these avalanches was the surface hoar mentioned in the snowpack summary.

Snowpack Summary

Over the past few days the wind has come from the southwest and then shifted to the northwest, wind effect could be found on all aspects.

Up to 30 cm of storm snow from Friday and Saturday overlies a variety of surfaces including a sun crust on steep south aspects and Surface hoar in sheltered terrain.

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

Weather Summary

Sunday Night

Mix of cloud and clear skies with 0 to 2 cm of snow possible. 15 to 35 km/h northwest ridgetop wind. Treeline temperature -7°C.

Monday

A mix of sun and cloud with no snow expected. 25 to 45 km/h northwest ridgetop wind. Treeline temperature -9°C.

Tuesday

Mostly sunny with no snow expected. 25 to 45 km/h northwest ridgetop wind. Treeline temperature -10°C.

Wednesday

Mix of sun and cloud with 0 to 2 cm of snow expected. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -8°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Be careful as you transition into wind-affected terrain.
  • Be aware of the potential for large avalanches due to buried surface hoar.

Avalanche Problems

Storm Slabs

Storm slabs will likely remain reactive to rider traffic due to the surface hoar the new snow has fallen on.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2