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Avalanche Forecast

Archived

Jan 6th, 2023–Jan 7th, 2023

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast, North Shore, Sasquatch, Tetrahedron.

Carefully assess the bond between wind slabs and the underlying crust before committing to terrain.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Thursday. We suspect at the peak of the rain event Thursday night a natural avalanche cycle would have occurred at treeline on all aspects.

Please continue to post your observations and photos to the Mountain Information Network.

Snowpack Summary

As the freezing level falls a new crust will form on all aspects at treeline. Below treeline the snow surface will likely still be moist and saturated. At the higher elevation terrain wind slab could have formed on all aspects.

Weather Summary

Friday Night

Cloudy with 5 to 10cm of new snow expected. Strong southeast winds and freezing level around 1400m.

Saturday

Cloudy with 5 to 10cm of new snow expected. Southeast winds decreasing to light by late afternoon. Freezing level around 1300m.

Sunday

Stormy with 10 to 20cm of new snow expected at higher elevations, rain at treeline and below. Moderate southeast winds and freezing levels rising to 1800m.

Monday

Stormy with up to 20mm of rain, snow only at the highest elevation terrain. Moderate to strong southeast winds. Freezing levels rising to 1900m.

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.
  • Avoid freshly wind loaded terrain features.
  • Wind slabs may be poorly bonded to the underlying crust.

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.