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Archived

Avalanche Forecast

Dec 27th, 2024–Dec 28th, 2024
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

Watch for newly formed, reactive wind slabs as you transition into wind-affected terrain.

Confidence

Moderate

Avalanche Summary

No new avalanches have been observed in the past few days, but observations are limited.

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

Snowpack Summary

Up to 15 cm of recent snowfall exists in sheltered areas. Strong to extreme wind has formed firm, wind-affected surfaces at the treeline and above. Hard wind slabs have formed in lee and cross-loaded terrain.

A melt-freeze crust and facets exist in the upper snowpack, particularly in south-facing terrain. Winds likely have scoured recent snow, leaving the crust exposed on the surface in exposed areas.

Snowpack depth varies significantly across the region. Windward slopes may have as little as 50 cm of snow, while leeward slopes could have up to 200 cm

Weather Summary

Friday Night

Cloudy with up to 2 cm of new snow. 20 to 50 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Saturday

Cloudy with 2 to 10 cm of new snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Sunday

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

Monday

Cloudy with up to 1 cm of new snow. 10 to 30 km/h west ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid areas where the snow feels stiff and/or slabby.
  • Use ridges or ribs to avoid areas of wind-loaded snow.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.

Avalanche Problems

Wind Slabs

Recent snowfall and wind have formed wind slabs in lee and cross-loaded areas.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2