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Avalanche Forecast

Dec 1st, 2024–Dec 2nd, 2024
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
1: Low
The avalanche danger rating in the alpine will be low
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: Flathead, Lizard, Lizard-Flathead, Moyie, St. Mary.

Travel with caution around steep wind-affected slopes.

Field data is limited; We'd love to see your MIN reports if you are out in the mountains!

Confidence

Moderate

Avalanche Summary

Small wind slabs (size 1) have been triggered with ski cutting and explosives in the past few days.

Snowpack Summary

Last week's 40 to 60 cm of snow remains soft in sheltered areas, but may have formed reactive slabs in wind-affected terrain. A crust exists near the ground, with total snow depths of 100 to 150 cm at treeline.

Weather Summary

Sunday Night

Mainly clear. 15 to 30 km/h southwest ridge top wind. Treeline temperature -5 °C, with an above-freezing layer developing between 2200 m to 3000 m.

Monday

Mainly clear. 10 to 30 km/h southwest ridge top winds. Treeline temperature -2 °C.

Tuesday

A mix of sun and cloud. 10 to 30 km/h southwest ridge top wind. Treeline temperature -2 °C.

Wednesday

A mix of sun and cloud. 15 to 30 km/h southwest ridge top wind. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

Avalanche Problems

Wind Slabs

Wind from the west may have formed wind slabs along ridgelines and in exposed terrain.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5