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Avalanche Forecast

Archived

Jan 16th, 2024–Jan 17th, 2024

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

Regions

South Coast, Powell River, North Shore, Tetrahedron.

New snow may take some time to bond to the cold, wind-affected surfaces underneath.

Confidence

Moderate

Avalanche Summary

No recent avalanche activity has been reported.

If you head into the backcountry, please consider submitting a MIN report.

Snowpack Summary

Fresh snow is burying previously wind-affected surfaces at treeline and above. In sheltered areas, especially around treeline elevations a layer of surface hoar crystals may exist below the new snow.

A crust buried by roughly 30 cm of snow may be breaking down (facetting), and forming another potential weak layer in the upper snowpack.

The mid and lower snowpack is generally settled and well-bonded.

Weather Summary

Tuesday Night

Cloudy with 2 to 5 cm of snow, southwest alpine winds 10 to 30 km/h, treeline temperature -5 °C.

Wednesday

Cloudy with 10 to 15 cm of snow, southwest alpine wind 10 to 30 km/h, treeline temperature -6 °C.

Thursday

Mostly cloudy with no new precipitation, south alpine winds 10 to 30 km/h, treeline temperature -4 °C.

Friday

Cloudy with up to 25 cm of snow at treeline and above, south alpine winds 40 to 60 km/h, treeline temperature 0 °C, freezing levels rising to 1900 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the old surface.
  • Watch for fresh storm slabs building throughout the day.
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.

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.