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Archived

Avalanche Forecast

Mar 15th, 2025–Mar 16th, 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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
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, Sugarbowl, Tumbler.

Recent storm snow may need extra time to settle. Use caution, especially where more than 20 cm has accumulated.

Confidence

Moderate

Avalanche Summary

Throughout this past week, a few small to large (size 1 to 2) wind slab avalanches out of steep alpine terrain where reported.

Snowpack Summary

20 to 30 cm of snow that in isolated areas is up to 60 cm has accumulated in the past week. This storm snow has formed a slab and overlies a hard melt-freeze crust and perhaps isolated surface hoar crystals in wind-sheltered treeline terrain.

Variable winds have created windslabs on all aspects near or just below ridge crests.

The snow may be deeper and touchier in wind-exposed lee features.

A weak layer of surface hoar and/or faceted grains buried mid-February is around 50 to 100 cm deep, but is showing signs of strengthening.

The lower snowpack is well-settled.

Weather Summary

Saturday Night

Mostly cloudy. 10 to 40 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Sunday

Mix of sun and cloud with 1 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Monday

Mix of sun and cloud with 1 to 5 cm of snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Tuesday

Mix of sun and cloud with 1 to 5 cm of snow. 40 to 50 km/h west ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be aware of the potential for large avalanches due to buried weak layers.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Even brief periods of direct sun could produce natural avalanches.

Avalanche Problems

Storm Slabs

The recent snow is taking time to stabilize. This is particularly true where it overlies weak surface hoar crystals and in wind-exposed terrain near ridges. Expect to encounter wind slabs on all aspects in both the alpine and tree line.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2.5