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Avalanche Forecast

Archived

Feb 12th, 2024–Feb 13th, 2024

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

Regions

Kootenay Boundary, Bonnington, Grohman, Kootenay Pass, Norns, Rossland, South Okanagan, Ymir, Crawford, Moyie, St. Mary, Kokanee, Retallack, Bull.

There is uncertainty about how a layer of surface hoar under the new snow will behave.

Start with small features and test to see how the new snow is bonding before moving into larger terrain.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Monday at the time of publishing.

There are several reports of small dry loose avalanches across the region on Sunday.

Snowpack Summary

20 to 30 cm of recent storm snow sits on surface hoar which has been seen on all aspects and elevations. A thick rain crust now buried 30 to 40 cm deep seems well-bonded at lower elevations, but may need more time to bond in the alpine.

Crusts and facets in the mid and lower snowpack can still be found in isolated pockets.

Weather Summary

Monday Night

Mostly clear skies. 15 to 25 km/h northwest ridgetop wind. Treeline temperature -7 °C.

Tuesday

Mostly clear skies. 10 to 20 km/h north ridgetop wind. Treeline temperature -8 °C.

Wednesday

Mostly clear skies. 10 to 20 km/h east ridgetop wind. Treeline temperature -10 °C.

Thursday

Mostly cloudy. 10 to 20 km/h east ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Investigate the bond of the recent snow

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.