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Avalanche Forecast

Archived

Feb 24th, 2024–Feb 25th, 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.
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.

Expect to find fresh and reactive wind slabs on a variety of aspects due to shifting wind direction.

Confidence

Moderate

Avalanche Summary

On Friday, natural and rider triggered wind slabs size 1.5-2 were reported on north aspects in the alpine. Check out this MIN report from our field team for details on their remotely triggered avalanche.

Snowpack Summary

Around 20 cm of new snow has been redistributed by wind in most areas. Thanks for all the MIN reports from Friday pointing to good snow quality 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

Saturday night

Partly cloudy. Ridgetop wind increasing to 40 km/h northeast. Treeline temperature -17 °C.

Sunday

A mix of sun and clouds with isolated flurries bringing a trace. 60 km/h northeast ridgetop wind. Treeline temperature -13 °C.

Monday

Mostly sunny. Ridgetop wind easing to 20 km/h east. Treeline temperature -19 °C.

Tuesday

Increasing cloud with scattered flurries bringing a trace. Ridgetop wind easing to 40 to 50 km/h south. Treeline temperature -16 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Stay off recently wind loaded slopes until they have had a chance to stabilize.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • 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.