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Avalanche Forecast

Archived

Feb 23rd, 2024–Feb 24th, 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.

Recently formed wind slabs will likely remain triggerable by riders this weekend.

Confidence

Moderate

Avalanche Summary

On Friday, our field team remotely triggered a size 2 wind slab avalanche on a north aspect in the alpine. See their MIN report for details.

Snowpack Summary

Around 20 cm of new snow has been redistributed by wind in most areas. In sheltered terrain, the new snow may sit over a layer of surface hoar.

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

Weather Summary

Friday night

Clearing. West ridgetop wind easing 20 km/h to 10 km/h. Treeline temperature -17 °C.

Saturday

Sunny. <20 km/h southwest ridgetop wind. Treeline temperature -12 °C.

Sunday

Partly cloudy with isolated flurries bringing a trace. 60 km/h north ridgetop wind. Treeline temperature -13 °C.

Monday

Partly cloudy. 20 to 40 km/h northeast ridgetop wind. Treeline temperature -15 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
  • Seek out sheltered terrain where new snow hasn't been wind-affected.

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.