Avalog Join
Archived

Avalanche Forecast

Dec 26th, 2023–Dec 27th, 2023
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Tutshi, Wheaton, White Pass East, White Pass West, Yukon.

Seek terrain that is sheltered from the wind for better snow and lower avalanche danger. Winds change direction on Wednesday, so human triggered avalanches are possible on all aspects.

Confidence

Low

Avalanche Summary

No new avalanches have been reported in the region. We anticipate that on Wednesday, the weight of a human could trigger small to large (size 1-2) windslabs on all aspects in terrain exposed to the wind.

If you head into the backcountry please consider submitting your observations to the Mountain Information Network.

Snowpack Summary

50-70 of recent storm snow has been redistributed by varied wind. Wind is forecast to switch direction, blowing from the east on Wednesday. This could form new, reactive windslabs on terrain that was previously scoured or pressed by strong south through west winds.

Below 1200 m, a thick crust is present approximately 50 cm above the ground. This crust is well bonded to the snow around it.

The middle and lower snowpack is reported to be well settled and bonded. Snow depth varies from 75-200 cm through this region.

Weather Summary

Tuesday Night

Clear. No new snow expected. Strong west ridgetop wind. Treeline temperature around -7 °C .

Wednesday

Partly cloudy. No new snow expected. Moderate to strong east ridgetop wind. Treeline temperature around -10 °C.

Thursday

Cloudy. 2-5 cm of snow expected. Light to moderate southeast wind. Treeline temperature around -11 °C. Possible temperature inversion.

Friday

Mostly cloudy. 2-5 cm of snow expected. Light to moderate southeast wind. Treeline temperature around -6 °C. Possible temperature inversion.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.

Avalanche Problems

Wind Slabs

50-70 cm of storm snow and strong, varied direction winds may have formed reactive wind slabs. Without recent observations in wind exposed terrain, the wind effected snow may also be firm, bonded, and no longer an avalanche problem.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2