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Avalanche Forecast

Archived

Apr 16th, 2026–Apr 17th, 2026

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

Regions

Northwest Coastal, Boundary, Kitimat, Nass, Rupert, Shames, Stewart.

Start on small slopes and gather information before moving into bigger terrain.

Use safe travel habits, like spacing out so only one person is in avalanche terrain at a time.

Confidence

Moderate

  • We are uncertain due to a highly variable snowpack.

Avalanche Summary

On Wednesday, north of Stewart, a few small (size 1) slab and dry loose avalanches were reported in the alpine, and numerous small to large (size 1-2) loose wet avalanches were reported in alpine and treeline terrain.

Snowpack Summary

In the alpine, 20-40 cm of recent snow is settling over crusty surfaces across most terrain, except in high alpine north-facing areas, where dry, wintry snow can still be found. Previous moderate to strong winds (mostly from the southwest) redistributed this loose snow into deeper deposits on leeward slopes.

In most places below treeline, the upper snowpack is moist, and possibly even isothermal at low elevations.

Weather Summary

Thursday Night

Cloudy. 1 cm of snow. 30 km/h northwest ridgetop wind, but only 15 km/h around Terrace and south. Treeline temperature -3 °C.

Friday

Cloudy. 1 to 3 cm of snow. 25 km/h west ridgetop wind, but only 10 km/h around Terrace and south. Treeline high -2 °C. Freezing level rising to 1300 m.

Saturday

Mostly cloudy. 1 to 2 mm of precipitation as snow or rain at treeline. 30 km/h south ridgetop wind. Treeline high 3 °C. Freezing level rising to 1750 m.

Sunday

Mostly cloudy, sun in afternoon. 1 to 4 mm of rain at treeline. 40 km/h southwest ridgetop wind. Treeline high 7 °C. Freezing level rising to 2200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.

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.