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Avalanche Forecast

Archived

Feb 21st, 2024–Feb 22nd, 2024

Alpine
Natural avalanches unlikely.
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

Northwest Inland, Kispiox, Microwave-Sinclair, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

Keep using safe travel strategies even when the hazard is low. Avalanches remain possible in steep alpine terrain.

Confidence

Moderate

Avalanche Summary

On Saturday a skier accidentally triggered a large avalanche near Hudson Bay Mountain. It is suspected that this avalanche failed on the facet/crust combination described in our snowpack summary. Check this MIN post for full details.

Snowpack Summary

In general, up to 10 cm of soft, faceted snow overlies hard, wind-affected snow in alpine terrain. Wind-exposed terrain may be scoured down to hard surfaces, while a sun crust exists on south-facing slopes.

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

Wednesday Night

Clear skies. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -1 °C.

Thursday

Sunny. 20 to 40 northwest ridgetop wind. Treeline temperature -1 °C.

Friday

Mostly cloudy with 0 to 3 cm of snow. 60 to 80 km/h west ridgetop wind. Treeline temperature -3 °C.

Saturday

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

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.