Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Mar 20th, 2025–Mar 21st, 2025
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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.

Recent snow and strong southwest winds may form fresh wind slabs reactive to human triggers.

Avoid steep, rocky, and wind-affected areas where triggering slabs are more likely.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported in this region on Wednesday.

Snowpack Summary

Up to 40 cm of recent snow and southwest winds formed slabs that may still be reactive to human triggers.

In most areas, the storm snow rests on a melt-freeze crust, except for high-elevation north and east-facing slopes.

A persistent weak layer of surface hoar or facets from late January is down 50 to 100 cm. Rocky slopes with a convex shape on northerly and easterly facing aspects at treeline and above are the most likely places to trigger this layer.

Weather Summary

Thursday night

Cloudy with flurries, 0 to 5 cm of snow. 20 to 30 km/h southwest ridgetop winds. Treeline temperature -11 °C. Freezing level valley bottom.

Friday

Cloudy with 3 to 10 cm of snow. 30 to 40 km/h southwest ridgetop winds. Treeline temperature -3 °C. Freezing level 1700 m.

Saturday

Mix of sun and cloud. 10 to 20 km/h west winds. Treeline temperature -4 °C. Freezing level 1600 m.

Sunday

Mostly cloudy. 30 to 40 km/h southwest ridgetop winds. Treeline temperature -1 °C. Freezing level 1900 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.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Be mindful that deep instabilities are still present and have produced recent large avalanches.

Avalanche Problems

Wind Slabs

Recent snow and strong southwest winds may form fresh wind slabs reactive to human triggers on lee features at treeline and above.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

A persistent weak layer of surface hoar or facets is buried 40 to 80 cm. Rocky slopes with a convex shape on northerly and easterly facing aspects at treeline and above are the most likely places to trigger this layer.

Aspects: North, North East, East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3