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Avalanche Forecast

Archived

Dec 1st, 2023–Dec 2nd, 2023

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

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

Exercise caution around wind-loaded, alpine features where the greatest risk of avalanches exists.

Confidence

Low

Avalanche Summary

On Tuesday, a size 1 storm slab avalanche was triggered by skiers on Feather Peak, just west of the forecast region. Details can be found in this report.

If you do head out, do so with a cautious and investigative mindset, and let us know what you're seeing by submitting a MIN report.

Snowpack Summary

The snowpack remains shallow at lower elevations with open creeks, exposed rocks, and plenty of early-season hazards.

However, reports suggest that much more snow has accumulated in alpine terrain during the recent warm stormy weather. A crust is buried anywhere from 0 to 50 cm depending on your location's wind exposure and elevation. A robust crust has been reported near the base of the snowpack.

Weather Summary

Friday night

Mostly cloudy with light snow, trace accumulation, southeast alpine wind 10 to 30 km/h, treeline temperature -12 °C.

Saturday

A mix of sun and cloud with light snow, northerly alpine wind 5 to 15 km/h, treeline temperature -12 °C.

Sunday

Mostly cloudy with light snowfall, trace accumulation, alpine wind southeast 15 to 40 km/h, treeline temperature - 11 °C.

Monday

Cloudy with snow, 1 to 5 cm accumulation, alpine wind south 25 to 50 km/h, treeline temeprature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make observations and assess conditions continually as you travel.
  • Avoid areas where the snow feels stiff and/or slabby.
  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.

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.