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Avalanche Forecast

Archived

Dec 27th, 2022–Dec 28th, 2022

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

Regions

South Coast, North Shore, Sasquatch, Sasquatch, Sky Pilot.

Dial back your terrain choices if you are seeing more than 30 cm of new snow.

Confidence

Moderate

Avalanche Summary

No notable recent avalanches have been reported in the region. In neighboring regions, several natural wet loose and wet slab avalanches were reported to size 2.5 on Monday. If you head into the backcountry you will likely see evidence of an avalanche cycle from the weekend.

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

Snowpack Summary

Above 1400 m 10 -20 cm of snow sits atop the thoroughly saturated snowpack below it.

As freezing levels drop expect to find a wet snowpack quickly becoming uniform and cohesive. Until then watch for unstable snow on specific features, when snow is moist or wet.

Prior to this weekend's rain event, the snowpack was well settled with treeline depths 100-180 cm.

Weather Summary

Tuesday Night

Mainly cloudy. Precipitation continues tonight with another 5-10 mm, local 15 mm. Westerley winds 40-60 km/h. Ridgetop low temperature -2. Freezing levels 1000-1400 m.

Wednesday

Cloudy with sunny periods and scattered flurries 10 mm. Southwesterly winds 20-40 km/h. Ridgetop high temperature -3. Freezing levels 700-1000 m.

Scattered flurries continue through the night, 2 - 8 mm. Freezing levels 500-1000 m

Thursday

Mainly cloudy with scattered flurries, 10-20 mm. Southerly winds 40 km/h. Ridgetop high temperature 0 C. Freezing levels hover from 1300m.

Friday

Cloudy with flurries, 20-30 mm. Westerley 40-60 km/h winds. Ridgetop high temperature 0 C. Freezing levels hover near 1300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Carefully monitor the bond between the new snow and old surface.

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.