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Avalanche Forecast

Archived

Dec 23rd, 2024–Dec 24th, 2024

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

Regions

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

Assess for wind slab as you travel into exposed terrain.

Wind slabs may not bond well to the hard surface they will form over.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the region.

Observations have been limited. Please consider sharing your observations through the Mountain Information Network.

Snowpack Summary

Ongoing light snowfall and southerly wind has likely formed deeper deposits on northerly aspects and scoured or pressed south facing slopes.

10 to 30 cm of snow sits above a firm, supportive crust that extends up to 1500 m.

The remainder of the snowpack has no layers of concern. Snowpack depths range from about 70 to 180 cm.

Weather Summary

Monday Night

Mostly cloudy with up to 3 cm of snow. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -11 °C.

Tuesday

Mostly cloudy with up to 5 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -8 °C.

Wednesday

Mostly cloudy with around 5 cm of snow. 10 to 30 km/h east ridgetop wind. Treeline temperature -6 °C.

Thursday

Mostly cloudy with around 5 cm of snow. 30 to 50 km/h southeast ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

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.