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

Apr 17th, 2025–Apr 18th, 2025

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

Regions

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

As the freezing level falls so will avalanche danger

Use extra caution where a thick surface crust doesn't form

Confidence

Moderate

Avalanche Summary

A few natural wind slabs were reported on Monday. These avalanches occurred in the alpine on east and north aspects.

Also on Monday a natural cornice fall was reported on a southeast aspect.. The resulting avalanche was a size 3.

Snowpack Summary

Dry snow may still be found on high north facing terrain. As the freezing level falls a new crust will form on the surface on all other aspects.

Three layers are notable in the snowpack:

  • Surface hoar from mid-March can be found 50 to 100 cm down.

  • A layer of surface hoar from early-March is buried 100 to 150 cm.

  • A layer of facets, surface hoar, and/or a crust from mid-February is buried 100 to 200 cm deep.

Weather Summary

Thursday Night

Mostly clear. 20 to 50 km/h southwest ridgetop wind. Freezing level falling to 1900 m.

Friday

Cloudy with up to 5 cm of snow. 30 to 60 km/h southwest ridgetop wind. Freezing level falling to 1100 m.

Saturday

Mix of sun and cloud with 0 to 2 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Sunday

Mix of sun and cloud with trace amounts of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Be careful as you transition into wind-affected terrain.

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.