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Avalanche Forecast

Archived

Feb 27th, 2024–Feb 28th, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

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

While danger ratings have dropped and wind slabs are small, continue to assess conditions as you travel through different aspects and elevations.

Confidence

High

Avalanche Summary

No new reports of avalanches since Friday when natural and remote triggered wind slabs size 1.5-2 were observed on north facing slopes in the alpine. Wind slabs appear to be less sensitive according to this well-travelled group's MIN report from Saturday.

Snowpack Summary

Alpine surfaces are mainly wind-affected, but soft snow can still be found in wind-sheltered terrain. A spotty layer of surface hoar may sit below recent snow, buried around 20 to 30 cm deep.

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

Weather Summary

Tuesday Night

Mostly cloudy with scattered flurries bringing a few cm of snow. Ridgetop wind 20-40 km/h southeast. Treeline temperature -17 °C.

Wednesday

Mostly cloudy with scattered flurries bringing a few cm of snow. Ridgetop wind 10-20 km/h southeast. Treeline temperature -16 °C.

Thursday

Mostly cloudy with scattered flurries bringing a trace of snow. Ridgetop wind 20-30 km/h east. Treeline temperature -18 °C.

Friday

Mostly cloudy with scattered flurries bringing a trace of snow. Ridgetop wind 20-30 km/h east. Treeline temperature -18 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
  • 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.