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Avalanche Forecast

Archived

Nov 21st, 2024–Nov 22nd, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

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

Use caution in steep alpine terrain; avalanches are possible on wind-loaded slopes.

Confidence

Low

Avalanche Summary

No recent avalanches have been reported.

Snowpack Summary

Continued strong northeast outflow winds have significantly altered and redistributed surface snow at all elevations.

The lower snowpack is generally strong, with the potential for various crusts at the base.

Snow depths are approximately 50 cm around treeline elevations, with as much as 100 cm in sheltered or wind-loaded locations in the alpine.

Weather Summary

Thursday night

Mostly cloudy. 30 to 50 km/h northeast ridgetop wind. Treeline temperature -16 °C.

Friday

Partly cloudy. 40 to 60 km/h ridgetop northeast wind. Treeline temperature -16 °C.

Saturday

Mostly sunny. 30 to 50 km/h northeast ridgetop wind. Treeline temperature -20 °C.

Sunday

Mostly sunny. 10 to 20 km/h north ridgetop wind. Treeline temperature -20 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Use ridges or ribs to avoid areas of wind-loaded snow.
  • Be cautious of buried obstacles, especially below treeline.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.