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Avalanche Forecast

Archived

Mar 10th, 2026–Mar 11th, 2026

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

South Coast Inland, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

Storm snow continues to accumulate atop a widespread crust. Use extra caution around recently wind-loaded terrain.

Confidence

Moderate

  • We are confident the likelihood of avalanches will increase with the forecast weather.
  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

On Monday, riders triggered what they suspect was a large wind slab that ran on a crust near Bralone. Check the MIN report for details.

On Sunday, numerous wind slab avalanches (up to size 2) occurred in exposed terrain across various aspects, along with a few cornice failures.

Snowpack Summary

Roughly 20 cm of storm snow has accumulated since the weekend, accompanied by strong, variable winds at higher elevations. A widespread crust, formed by last weekend's rain, lies just below the new snow. At higher elevations, new snow sits atop a generally settled, well-consolidated upper snowpack.

Variable weak layers buried throughout February may persist roughly 40 to 100 cm below the surface, in northerly high elevation terrain. These layers consist of surface hoar, facets, and/or crusts.

The remaining snowpack appears to be strong and well-bonded.

Weather Summary

Tuesday Night
Mostly cloudy. 5 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -11 °C.

Wednesday
Mostly cloudy. 5 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -11 °C.

Thursday
Mostly cloudy. 10 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Friday
Mix of sun and clouds. 1 to 4 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -11 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Be aware of the potential for large avalanches due to buried weak layers.

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.