Avalanche Forecast

Issued: Dec 28th, 2024 4:00PM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Storm Slabs.

Avalanche Canada Avalanche Canada, Avalanche Canada

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Local new snow accumulations may be significant.

Continue to make conservative terrain choices while the storm snow settles and stabilizes.

Summary

Confidence

Moderate

Avalanche Summary

On Saturday, a natural avalanche cycle occurred with numerous storm slabs (size 2) and cornice failures from northerly alpine slopes near Fernie.

Skiers also produced several small loose dry avalanches (size 1.5) on steep sheltered treeline slopes.

If you head out in the backcountry, let us know what you are seeing by submitting a MIN report!

Snowpack Summary

Recent snowfall has brought 25 to 40 cm of fresh snow in localized areas. The southwest wind has redistributed this new snow, forming deeper deposits on leeward slopes at higher elevations.

Below the new snow, a thick melt-freeze crust exists below approximately 1500 m.

The mid and lower snowpack is generally well-settled and stable.

Snow depths at treeline range from 120 to 180 cm.

Weather Summary

Saturday Night

Cloudy with 10 to 15 cm of new snow. 25 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Sunday

Cloudy with up to 5 cm of new snow. 5 to 15 km/h northeast ridgetop wind. Treeline temperature -6 °C.

Monday

Cloudy with up to 2 cm of new snow. 5 to 15 km/h west ridgetop wind. Treeline temperature -8 °C.

Tuesday

Cloudy with up to 2 cm of new snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep your guard up as storm slabs may remain sensitive to human triggering.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.

Problems

Storm Slabs

An icon showing Storm Slabs

Recent snowfall and southwest winds have formed fresh storm slabs that will be deepest and most reactive in wind-loaded areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1 - 2

Valid until: Dec 29th, 2024 4:00PM

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