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 18th, 2025–Dec 19th, 2025

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

Regions

Northwest Inland, Kitimat, Nass, Rupert, Seven Sisters, Shames, Howson.

Snow has been falling consistently for a few days.

Assess the area you are in for how that snow has bonded to the old snow, and if the wind has made it more dense or loaded.

Confidence

Moderate

  • Uncertainty is due to how quickly the snowpack will recover and gain strength.

Avalanche Summary

Reports of a natural avalanche cycle up to size 2.5 on Monday and Tuesday consisting of storm slabs at upper elevations, with wet loose avalanches at lower elevations.

A few small (size 1) human triggered avalanches were reported on Tuesday, not running far or fast.

Snowpack Summary

up to 50 cm of snow is on the surface in sheltered areas and is wind affected in the alpine and open areas at treeline.

A crust is present at elevations lower than 1300 m and is buried 30cm deep.

A few layers of weak, feathery surface hoar crystals can be found between 50 to 150 cm deep.

Snowpack depths in excess of 300 cm can be found at treeline elevations.

Have a read of this MIN for details specific to the Shames area

Weather Summary

Thursday Night
Mostly cloudy. 1 to 5 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -8 °C.

Friday
Mostly cloudy. 1 cm of snow. 10 km/h southeast ridgetop wind. Treeline temperature -11 °C.

Saturday
Mostly cloudy. 3 to 5 cm of snow. 10 km/h southeast ridgetop wind. Treeline temperature -15 °C.

Sunday
Mix of sun and clouds. 1 to 2 cm of snow. 20 km/h southeast ridgetop wind. Treeline temperature -14 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Make observations and continually assess conditions as you travel.
  • A hard crust on the snow surface will help strengthen the snowpack, but may cause tough travel conditions.

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.