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Avalanche Forecast

Archived

Nov 26th, 2023–Nov 27th, 2023

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

Snowfall amounts will vary during this storm, treat areas with more than 20 cm of new snow with extra caution.

Confidence

Low

Avalanche Summary

There have been no new avalanches reported, but we suspect new snow in the alpine with strong southwest wind will produce an active avalanche cycle.

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

Roughly 30 to 60 cm of snow exists at the treeline and up to 80 cm in the alpine. A crust or moist snow may exist on the surface from recent warm temperatures and rain. The alpine snowpack has been extensively wind-affected. A robust crust has been reported near the base of the snowpack.

The snowpack remains shallow and creeks are open, rocks are exposed, and there are plenty of early-season hazards.

Weather Summary

Sunday night

Cloudy with snow, up to 15 cm accumulation, southwest alpine wind 50 to 70 km/h, treeline temperature -1°C.

Monday

Cloudy with snow, 5 cm accumulation, southwest alpine wind 60 to 70 km/h, treeline temperature -1°C.

Tuesday

Mix of sun and clouds with snow, up to 5 cm accumulation, southwest alpine wind 30 to 50 km/h, treeline temperature -5 C.

Wednesday

Mix of sun and clouds with flurries, southwest alpine wind 40 to 60 km/h, treeline temperature -12°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.

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.