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Archived

Avalanche Forecast

Feb 22nd, 2024–Feb 23rd, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Northwest Inland, Babine, Hudson Bay, Kispiox, Microwave-Sinclair, Telkwa, North Bulkley, South Bulkley.

As winds intensify and some areas receive new snow, keep an eye out for wind slab development in steep, exposed alpine terrain.

Confidence

Moderate

Avalanche Summary

A small (size 1) wind slab avalanche was triggered on Thursday by a sledder. It occurred on a steep alpine slope where a firm wind slab sat atop a weak faceted, shallow snowpack.

Snowpack Summary

Any new snow will bury generally faceted and wind-affected surfaces. Winds will redistribute any loose surface snow into lee terrain features.

In steep, exposed alpine terrain, old, hard wind slabs may sit atop weak faceted crystals and a crust, down roughly 20 to 30 cm from the surface.

The mid and lower snowpack is generally well-bonded and strong.

Weather Summary

Thursday Night

Clouds building overnight with 0 to 2 cm of snow. 40 to 60 km/h west ridgetop wind. Treeline temperature -5 °C.

Friday

Cloudy with 0 to 5 cm of snow. 50 to 70 km/h west ridgetop wind. Treeline temperature -5 °C.

Saturday

Cloudy with 0 to 10 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday

Mostly cloudy with 0 to 10 cm of snow. 20 to 40 km/h northwest ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate bigger terrain features on an individual basis before committing to them.
  • Use caution when approaching steep and rocky terrian.
  • Wind slabs are most reactive during their formation.

Avalanche Problems

Wind Slabs

Increasing wind and new snow may create wind slabs in lee terrain. Surface slabs may sit atop a variety of weak grain types and/or hard surfaces.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2