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Archived

Avalanche Forecast

Mar 7th, 2025–Mar 8th, 2025
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
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: East Kakwa, Kakwa, McGregor, North Rockies, Pine Pass, Renshaw, Robson, Sugarbowl, Tumbler.

Avalanche danger will increase as the new snow piles up.

Plan to reduce your exposure to avalanche terrain after noon.

Confidence

Moderate

Avalanche Summary

On Thursday there was a large (size 2) natural wind slab from extreme terrain in Kakwa. (see photo)

As the new snow piles up, avalanche activity will increase. Weak layers buried in the snowpack mean larger than expected avalanches may occur.

Snowpack Summary

Ongoing snowfall adds to 5 cm over a melt-freeze crust on all aspects to 1600 m.

A weak layer of surface hoar or facets is found 20 to 50 cm down in many areas. A second weak layer buried 60 to 90 cm consists of surface hoar, facets, and/or a hard crust. These persistent layers remain a concern, with the potential for large step-down avalanches.

Weather Summary

Friday Night

Cloudy with 5 to 10 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1200 m.

Saturday

Cloudy with 10 to 20 cm of snow. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1200 m.

Sunday

A mix of sun and cloud with 5 to 20 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -5 °C.

Monday

A mix of sun and cloud. 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be mindful that deep instabilities are still present in the snowpack.
  • Watch for fresh storm slabs building throughout the day.
  • Start with conservative terrain and watch for signs of instability.

Avalanche Problems

Persistent Slabs

Weak layers persist within the upper 90 cm of the snowpack. Avoid shallow areas where triggering these layers is more likely.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 3

Storm Slabs

If you find more than 15 cm of new snow, there is likely a storm slab problem. The deeper the new snow, the more dangerous the avalanche conditions will be.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5