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Avalanche Forecast

Archived

Apr 22nd, 2025–Apr 23rd, 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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

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

Assess for slabs in lee features prior to entering high-consequence terrain.

Confidence

Moderate

Avalanche Summary

We haven't received any reports of avalanche activity on this region.

Please consider sharing your observations to the Mountain Information Network.

Snowpack Summary

Small amounts of new snow will fall onto a hard melt-freeze crust everywhere except for high-elevation northerly aspects, where 15 cm of soft and dry snow prevails. Southwest wind will redeposit snow into lee terrain features.

There are no deeper layers of concern at this time.

Weather Summary

Tuesday Night

Cloudy with 2 to 5 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 900 m.

Wednesday

Mostly cloudy with 0 to 1 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1300 m.

Thursday

Partly cloudy. 20 to 30 km/h south ridgetop wind. Treeline temperature +5 °C. Freezing level 1800 m.

Friday

Mostly cloudy with 1 to 3 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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.