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Avalanche Forecast

Archived

Jan 20th, 2024–Jan 21st, 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, human triggered possible.
Below Treeline
Below Threshold.

Regions

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

Look for sheltered terrain to find decent riding. All exposed terrain is highly wind effected.

Confidence

Moderate

Avalanche Summary

Explosive control on Friday produced only small avalanches.

Snowpack Summary

Previous strong winds have impacted all aspects resulting in a mix of scoured, pressed and loaded surfaces. Wind slabs on south facing slopes may overlie a weak layer of facets. In the most sheltered terrain some soft snow may still be found.

Check out this MIN from our field team describing undesirable conditions at Summit lake.

The mid pack is settled and strong.

Weather Summary

Saturday Night

Mostly cloudy with trace amounts of new snow, northeast alpine wind up to 20 km/h, treeline temperature -23°C.

Sunday

Mostly cloudy  with up to 4 cm of new snow expected, northeast alpine winds up to 20 km/h, treeline temperature -21°C.

Monday

Cloudy with around 5 cm of new snow expected, south alpine wind up to 50 km/h and northeast wind at valley bottom up to 20 km/h, treeline temperature -18 °C.

Tuesday

Cloudy with 10 cm of new snow expected, south alpine wind 25 to 50 km/h, treeline temperature -7°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.
  • Approach lee and cross-loaded slopes with caution.
  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.

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.