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Archived

Avalanche Forecast

Feb 19th, 2025–Feb 20th, 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
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

Regions: Akamina, Bull, Crowsnest North, Crowsnest South, Elkford East, Elkford West, South Rockies.

The weather forecast is calling for a gradual warming trend for the next few days. Watch for a buried persistent weak layer to become reactive.

Confidence

Moderate

Avalanche Summary

On Tuesday there were reports of large (size 2) dry loose avalanches running in steep terrain. These were stepping down to a weak layer of facets buried in late January. Expect this layer of facets to become more reactive as the temperature gradually warms and snow above becomes more cohesive.

Snowpack Summary

Around 25 cm of new snow that fell over the weekend sits on 20 to 40 cm of mostly faceted snow. This all sits on a weak layer of surface hoar or facets buried in late January.

The mid and lower snowpack is generally well settled.

Weather Summary

Wednesday Night

Cloudy with 0 to 1 cm of snow. 20 to 40 km/h west ridgetop wind. Treeline temperature -8 °C.

Thursday

Cloudy. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Friday

Mostly cloudy. 25 to 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Saturday

Mostly cloudy with scattered flurries. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Loose avalanches may step down to deeper layers, resulting in larger avalanches.
  • Be careful as you transition into wind-affected terrain.

Avalanche Problems

Persistent Slabs

A weak layer surface hoar and/or facets is buriesd 40 to 60 cm and may become more reactive as the temperature rises in the coming days.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2.5

Loose Dry

Loose dry avalanches will be likely in steep terrain where new snow hasn't formed a slab.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 1.5