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Avalanche Forecast

Archived

Feb 27th, 2024–Feb 28th, 2024

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

Regions

Microwave-Sinclair, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

Wind slabs are expected to remain reactive. Use caution around ridgelines, and watch for signs of instability

Confidence

Moderate

Avalanche Summary

Size 2 natural avalanches were observed on Monday on west facing slopes, and cross loaded features in the alpine. Check out this MIN report for more details.

We expect natural activity to have tapered off, but human triggering still remains possible.

Snowpack Summary

15-40 cm of recent snow sits over weak, faceted surfaces and may be slow to bond. At upper elevations, it has been redistributed by shifting winds. Check out this MIN report from the weekend, describing snowy conditions in high terrain.

Another layer of weak, faceted crystals and a crust are buried 20-50 cm deep. The mid and lower snowpack is generally well-bonded and strong.

Weather Summary

Tuesday Night

Mostly cloudy with flurries bringing up to 5 cm. 40-70 km/h south ridgetop wind. Treeline temperature -15 °C.

Wednesday

A mix of sun and cloud. 20-30 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Thursday

Mostly cloudy. Possible flurries. 30-40 km/h southeast ridgetop wind. Treeline temperature -8 °C.

Friday

Mostly cloudy. Possible flurries. 30-40 km/h southeast ridgetop wind. Treeline temperature -10 °C.

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.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Keep in mind that human triggering potential persists as natural avalanching tapers off.

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.