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Avalanche Forecast

Dec 6th, 2024–Dec 7th, 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
3: Considerable
The avalanche danger rating below treeline will be considerable
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
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: Flathead, Lizard, Lizard-Flathead, Moyie, St. Mary.

Storm slabs will build as the new snow piles up.Dial back your exposure to avalanche terrain throughout the day, planning for none in the afternoon.

Confidence

Moderate

Avalanche Summary

As the snow piles up, storm slab avalanche activity is expected to increase at all elevations.

No avalanches were reported on Friday.

Snowpack Summary

New snow will be falling on a mix of sun crusts, surface hoar in wind-sheltered spots, and wind-affected snow.

The middle of the snowpack is generally expected to be well-settled and stable. An unreactive melt-freeze crust is near the ground.

Total snow depths vary from 100 to 150 cm at treeline.

Weather Summary

Friday Night

Cloudy. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -4 °C with a temperature inversion.

Saturday

Cloudy with 5 to 15 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Sunday

A mix of sun and cloud with up to 10 cm ending in the morning. 20 km/h northwest ridgetop wind. Treeline temperature -8 °C.

Monday

Mostly sunny. 20 km/h west 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.
  • Minimize exposure during periods of heavy loading from new snow and wind.

Avalanche Problems

Storm Slabs

Snowfall amounts are uncertain. If we see 20 cm or more, avalanches will become much more likely in many locations, especially on slopes where the wind is dropping snow.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2.5