Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Dec 7th, 2023–Dec 8th, 2023

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

Regions

Northwest Coastal, Boundary, Kitimat, Nass, Rupert, Seven Sisters, Shames, Stewart, Howson.

Carefully assess steep lines for wind slab. Wind slab could still be rider triggerable near ridge crests.

Confidence

Moderate

Avalanche Summary

A wide spread natural avalanche cycle occurred earlier this week during the storm. Since then avalanche activity has tapered off with only small explosive triggered avalanches reported on Wednesday.

Snowpack Summary

Wind slab can still be found on northerly aspects from previous southerly winds. At lower elevations a new crust has likely formed on all aspects.

The mid pack contains several crusts from November. In general the mid pack is well settled.

The snowpack depth is approaching two meters in the alpine but is still quite shallow below treeline.

Weather Summary

ursday Night

Mostly cloudy, up to 4 cm of new snow expected, south alpine wind 10 to 20 km/h, treeline temperature -6°C.

Friday

Mostly cloudy with up to  2 cm of new snow expected, south alpine wind 10 to 25 km/h, treeline temperature -3°C.

Saturday

Cloudy with 10 to 20 cm of new snow expected, southwest alpine wind 30 to 60 km/h, treeline temperature -3°C.

Sunday

Mostly clear with no new snow expected, variable alpine wind 5 to 15 km/h, treeline temperature -1°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Use ridges or ribs to avoid areas of wind loaded snow.

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.