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Avalanche Forecast

Jan 8th, 2025–Jan 9th, 2025
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
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: Glacier.

Use caution in wind effected terrain, a fresh wind slab has formed in the new snow.

If the skies are clear, watch for solar triggered loose avalanches in steep terrain facing the sun.

Confidence

Low

Avalanche Summary

No new natural avalanches were observed on Wednesday.

Solar triggered, loose, dry avalanches are likely on Thursday, if the skies clear.

On Monday, we observed a size 1.5 wind slab avalanche in the alpine above NRC gully on Macdonald West Shoulder, likely rider triggered.

Snowpack Summary

10-15 cm of new snow buried a weak interface which consists of widespread surface hoar present in the elevation band from ~1400 m to 2100 m surface hoar and a thin sun crust on steep westerly aspect. Moderate southerly winds have redistributed this new snow in exposed terrain, loading north facing terrain.

Isolated wind slabs are buried by new snow. These can be found on all aspects in the alpine.

Overall the mid and lower snowpack is strong and well settled.

Weather Summary

A brief clearing trend if forecast for Thursday, with a frontal system approaching Friday.

Tonight Cloudy w/clear periods. Alp Low -9, Ridge wind light gusting to mod. Freezing level (FZL) 700m.

Thurs Cloudy w/sunny periods. Alp high -4. Ridge wind SW 20 km/h. FZL 1100m.

Fri Flurries. 10-15 cm. Wind SW25, gusting to 50. FZL 800m

Sat Cloudy w/flurries. Trace precip. Alpine high -9 °C. Ridge wind W 15-35. FZL 800m.

Terrain and Travel Advice

  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Avoid areas where the snow feels stiff and/or slabby.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for slabs before you commit to it.

Avalanche Problems

Wind Slabs

Moderate southerly winds and 10-15 cm of new snow have formed fresh wind slabs on lee features. Pockets of buried wind slab may exist on all aspects near ridgetops in the alpine.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2.5