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Archived

Avalanche Forecast

Apr 21st, 2025–Apr 22nd, 2025
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: Akamina, Bull, Crawford, Crowsnest North, Crowsnest South, Elkford East, Elkford West, Flathead, Lizard, Lizard-Flathead, Moyie, South Rockies, St. Mary.

Up to 25 cm of recent snow in localized areas and strong variable wind may have formed wind slabs on lee slopes at upper elevations.

Confidence

Moderate

Avalanche Summary

On Sunday, a few naturally triggered storm slabs up to size 1.5 were reported in the alpine near Fernie.

NOTE: Observations are currently very limited in this region.

Snowpack Summary

Up to 25 cm of recent snow in localized areas and strong variable wind may have formed wind slabs on lee slopes at upper elevations.

This snow overlies a robust crust everywhere except northerly aspects at upper elevations, where previous snow surfaces may have remained dry.

The mid/lower snowpack is well settled and strong.

Lower elevations are melting out rapidly.

Weather Summary

Monday Night

Mostly clear. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -6 °C. Freezing level valley bottom.

Tuesday

Mix of sun and cloud. 5 to 10 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Wednesday

Mostly sunny. 10 to 20 km/h northwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2300 m.

Thursday

Sunny. 10 to 20 km/h southeast ridgetop wind. Treeline temperature 5 °C. Freezing level 2500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Avoid sun-exposed slopes, especially if the snow surface is moist or wet.

Avalanche Problems

Wind Slabs

Up to 25 cm of recent snow in localized areas and strong variable wind may have formed wind slabs on lee slopes at upper elevations.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2

Loose Wet

Expect the first sign of sun to trigger wet loose avalanches on steep slopes.

Aspects: East, South East, South, South West, West.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 1.5