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Avalanche Forecast

Archived

Feb 19th, 2026–Feb 20th, 2026

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

Regions

Kootenay Boundary, Bonnington, Grohman, Kootenay Pass, Norns, Ymir, Kokanee, Valhalla, Whatshan.

There is variability in conditions throughout the region. It pays to have a cautious approach as recent storm snow continues to settle.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

On Wednesday there was a report of a size 2 skier triggered storm slab avalanche running on surface hoar buried in mid-February. This was near ridgetop at 2150 m on a northeast aspect.

Earlier in the week there were several MIN posts describing small to large human-triggered and remotely triggered slab avalanches failing on crusts and/or surface hoar layers down roughly 30-50 cm.

Weather Summary

Thursday Night

Mostly cloudy. 2-3 cm of snow. 10-15 km/h west ridgetop wind. Treeline temperature -14 °C.

Friday

Mostly sunny. 15-25 km/h northwest ridgetop wind. Treeline temperature -11 °C.

Saturday

Mostly sunny. 10-25 km/h south ridgetop wind. Treeline temperature -8 °C.

Sunday

Mix of sun and clouds. 20-40 km/h south ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep your guard up as storm slabs may remain sensitive to human triggering.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.
  • Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.

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.