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Avalanche Forecast

Archived

Jan 8th, 2024–Jan 9th, 2024

Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Sasquatch, Sasquatch, Coquihalla, Harrison-Fraser, Manning, Skagit.

Very dangerous avalanche conditions exist at higher elevations where heavy snowfall and extreme winds are building reactive storm slabs. Travel in avalanche terrain is not recommended.

Confidence

Moderate

Avalanche Summary

On Sunday, a few natural, size 2, wind slab avalanches were reported on south-facing slopes at treeline and above. A widespread loose dry avalanche cycle was observed in steep unsupported terrain.

See this MIN post from Saturday for a report of a remotely triggered avalanche around the Coq Summit.

If you head into the backcountry by any method of travel, please consider submitting observations and/or photos on the Mountain Information Network.

Weather Summary

Monday Night

Cloudy with flurries, 30 to 40 cm of snow. Southwest ridgetop winds 40 to 80 km/h. Treeline temperature -7 °C.

Tuesday

Cloudy with flurries, 20 to 35 cm of snow. Southwest ridgetop winds 40 to 80 km/h. Treeline temperature -6 °C.

Wednesday

Cloudy with scattered flurries, up to 5 cm of snow. Northwest ridgetop winds 10 to 30 km/h. Treeline temperature -10 °C.

Thursday

Partly cloudy with isolated flurries, 3 to 6 cm of snow. Southwest ridgetop winds 20 to 40 km/h. Treeline temperatures drop through the day to -16 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for avalanche hazard to increase throughout the day.
  • Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • Avoid exposure to overhead avalanche terrain, large avalanches may reach the end of run out zones.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.