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Avalanche Forecast

Archived

Feb 22nd, 2024–Feb 23rd, 2024

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

Regions

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

Strong winds have redistributed new snow into lee terrain features across all elevations.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported.

Snowpack Summary

New snow has generally buried old variable wind-affected snow surfaces. While in wind-sheltered terrain new snow may sit atop weak surface hoar crystals.

Below 1500 m, a thick melt-freeze crust is buried 50 - 100 cm deep.

Weather Summary

Thursday Night

Cloudy with 10 to 20 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Friday

Clearing through the day with 0 to 2 cm of snow. 20 to 40 km/h west ridgetop wind. Treeline temperature -8 °C.

Saturday

Mostly cloudy with 0 to 2 cm of snow. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -12 °C.

Sunday

Partly cloudy. 40 to 60 north ridgetop wind. Treeline temperature -15 °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.
  • Wind slabs are most reactive during their formation.
  • Sheltered low elevation terrain will likely offer the best and safest riding today.

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.