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Avalanche Forecast

Archived

Feb 25th, 2024–Feb 26th, 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.

Carefully evaluate your line for wind slab hazard before you commit to it.

Confidence

High

Avalanche Summary

No new reports of avalanches since Friday when natural and remote rider triggered wind slabs size 1.5-2 were observed on north aspects in the alpine. Wind slabs appeared to be less sensitive on Saturday according to this MIN report.

Snowpack Summary

Around 20 cm of recent snow has been redistributed by wind in most areas. Good snow quality can be found in wind-sheltered terrain. In these areas, 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

Sunday night

Partly cloudy with isolated flurries bringing a trace. 30 to 40 km/h north ridgetop wind. Treeline temperature -20 °C.

Monday

Mostly sunny. Ridgetop wind easing to 20 km/h northeast. Treeline temperature -18 °C.

Tuesday

Mostly cloudy with scattered flurries bringing up to 5 cm of snow. Ridgetop wind 50 to 60 km/h south. Treeline temperature -16 °C.

Wednesday

Cloudy with scattered flurries bringing up to 5 cm of snow. Ridgetop wind 10 to 20 km/h southeast. Treeline temperature -15 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

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.