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Avalanche Forecast

Archived

Mar 18th, 2025–Mar 19th, 2025

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

Regions

South Okanagan, Shuswap, North Okanagan.

Manage your terrain choices during period of sun and warming temperatures.

Expect the chance of triggering an avalanche to increase on solar aspects.

Confidence

Moderate

Avalanche Summary

On Monday a small (size 1) slab avalanche was skier-controlled on an east aspect at treeline. On Sunday a snowmobiler triggered a large (size 2) slab avalanche near Mt. Tod. Check out the MIN report here. On Saturday 1 small (size 1) natural avalanche was reported near Vernon in steep unsupported terrain. On Friday many small to large (size 1 to 2) wind slab avalanches were triggered by explosive control work in the region.

Snowpack Summary

35 to 50 cm of snow overlies a supportive crust.

Two weak layers of surface hoar and/or faceted grains associated with a crust from late January and mid-February may be found 80 to 100 cm deep.

The mid and lower snowpack is well settled and strong.

Weather Summary

Tuesday night

Partly cloudy. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Wednesday

Mix of sun and cloud. 30 to 50 km/h south ridgetop wind. Treeline temperature -5 °C.

Thursday

Cloudy with 2 to 5 cm of snow. 20 to 40 km/h southwest ridgetop winds. Treeline temperature -3 °C.

Friday

Cloudy. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Even brief periods of direct sun could produce natural avalanches.
  • Carefully evaluate steep lines for wind slabs.
  • Investigate the bond of the recent snow before committing to your line.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

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.