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Avalanche Forecast

Archived

Feb 4th, 2024–Feb 5th, 2024

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.

Evaluate your line for wind slabs before committing to larger features.

Confidence

Moderate

Avalanche Summary

No new avalanches reported.

Snowpack Summary

At upper elevations, 10 to 50 cm of dry snow has been redistributed by shifting winds. This snow appears to be bonding well to an underlying crust, reaching up to 1500 m in White Pass and 1200 m in the Wheaton area.

Weather Summary

Sunday night

Mostly cloudy with a trace of snow possible. South ridgetop wind 70 easing to 30 km/h. Treeline temperature -8 °C.

Monday

Cloudy with sunny breaks and a trace of snow possible. Southwest ridgetop wind 20 km/h. Treeline temperature around -6 °C.

Tuesday

Mostly cloudy with a trace of snow possible. Ridgetop wind southwest switching northeast 10 to 30 km/h. Treeline temperature around -10 °C.

Wednesday

A mix of sun and cloud. North ridgetop wind 20 to 30 km/h. Treeline temperature around -14 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Start on smaller terrain features and gather information before committing to bigger terrain.
  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.

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.