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Avalanche Forecast

Archived

Feb 18th, 2026–Feb 19th, 2026

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
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.

Regions

Lizard-Flathead, South Rockies, Akamina, Bull, Crowsnest North, Crowsnest South, Elkford East, Elkford West.

Recent storm snow is sitting on a crust. Give it more time to settle and bond. In the meantime stick to lower angle terrain.

Confidence

Moderate

  • We are uncertain about how quickly the snowpack will recover and gain strength.

Avalanche Summary

On Tuesday, numerous size 1 to 1.5 dry loose avalanches were reported near Castle Mountain.

There has been a report of an avalanche fatality in the neighboring region within the Flathead range. See this MIN post for more details.

Snowpack Summary

Roughly 30 to 40 cm of storm snow has accumulated. Storm slabs are building over old surfaces of:

  • wind-pressed snow in high elevation lees

  • crust on exposed windward features, south aspects and low elevations

  • soft, faceted snow, possibly topped with small surface hoar crystals in sheltered areas.

The remainder of the snowpack is well consolidated, containing a number of crusts which are not of concern at this time.

Weather Summary

Wednesday Night

Partly cloudy. 10 km/h west ridgetop wind. Treeline temperature -19 °C.

Thursday

Mix of sun and clouds. 1 cm of snow. 15-20 km/h southwest ridgetop wind. Treeline temperature -15 °C.

Friday

Mix of sun and clouds. 1 to 2 cm of snow. 20-30 km/h west ridgetop wind. Treeline temperature -13 °C.

Saturday

Mix of sun and clouds. 15-30 km/h southwest ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
  • Don't let storm day fever lure you into consequential terrain.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Be aware of the potential for human triggerable storm slabs at lower elevations, even on small features.

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.