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Avalanche Forecast

Archived

Mar 20th, 2026–Mar 21st, 2026

Alpine
Natural avalanches possible, human triggered probable.
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 Coast Inland, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

Conditions at upper elevations are uncertain, with recent snow and wind creating potential for slab avalanches. Lower elevations are more stable, as rain-soaked snow has refrozen.

Confidence

Moderate

  • We are uncertain about alpine conditions due to limited field observations.

Avalanche Summary

A widespread cycle of wet avalanches occurred Wednesday and Thursday, producing both slab and loose avalanches up to size 3.

With cooler temperatures over the weekend, wet avalanches are now unlikely, leaving lingering wind slabs at upper elevations as the main concern.

Snowpack Summary

10 to 40 cm of new snow fell at the end of the storm, with deeper wind-loaded deposits in the alpine. This sits on wet snow that is now refreezing.

A crust from early March is buried 80 to 120 cm deep, but can be much shallower in some areas. While a few avalanches occurred on this layer during the storm, it is unlikely to be a concern moving forward.

The lower snowpack is strong and well bonded.

Weather Summary

Friday Night

Mostly clear skies. 30 km/h west ridgetop wind. Treeline temperature -8 °C.

Saturday

Sunny with some late afternoon cloud. 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Sunday

Mix of sun and clouds. 5 to 10 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Monday

Mostly sunny. 40 km/h southwest ridgetop wind. Treeline temperature -5 °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.
  • Avoid lee and cross-loaded slopes at alpine and treeline elevations.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.