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Archived

Avalanche Forecast

Apr 7th, 2025–Apr 8th, 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
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
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: Crawford, Flathead, Lizard, Lizard-Flathead, Moyie, St. Mary.

Small but reactive storm slabs may build over the day. The best conditions will be found at high elevations, well above the freezing line.

Carefully assess your line before committing.

Confidence

Moderate

Avalanche Summary

Over the weekend, small wet loose avalanches were reported to size 1.

Looking forward, we expect small avalanches to continue to be possible in rain saturated terrain, but likely at elevations that receive new snow.

Snowpack Summary

Snowfall totals may reach 15 cm in higher terrain, sitting over a crust or moist snow. Surface snow at lower elevations is expected to remain wet.

The remainder of the snowpack is generally well settled.

Weather Summary

Monday Night

Cloudy with 5 cm of snow possible above 2000 m. 30 to 50 km/h southwest ridgetop wind. Freezing level lowers to 1500 m by morning.

Tuesday

Cloudy with 5 to 10 cm of snow. 20 to 30 km/h southwest ridgetop wind. Freezing level around 1800 m. Treeline temperature -2 °C.

Wednesday

Partly cloudy. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Thursday

Clear skies with 20 to 30 km/h southwest ridgetop winds. Freezing levels rise towards 2500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Cornices often break further back than expected; give them a wide berth when traveling on ridgetops.

Avalanche Problems

Storm Slabs

Wet, heavy snow at higher elevations may slide easily on the old snow surfaces. Watch for deeper and more reactive deposits near ridgelines.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 1.5

Cornices

Cornices are weak and may break further back on ridgelines than expected. These large loads can trigger buried weak layers on the slope below.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2