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Avalanche Forecast

Archived

Mar 21st, 2026–Mar 22nd, 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, 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

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

Danger is elevated where recent wind has formed large slabs and cornices. Use caution as you travel to higher elevations.

Confidence

Moderate

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

Avalanche Summary

A widespread avalanche cycle occurred over several days during the recent atmospheric river, producing many wet slab and loose avalanches up to size 3, some stepping down to deeper weak layers.

With cooler temperatures, the main concern has shifted to lingering wind slabs and cornices in the alpine and along treeline ridges.

Snowpack Summary

Above 1800 m, 10 to 40 cm of dry snow overlies a moist snow that is now refreezing, with deeper wind deposits in exposed terrain.

Below 1800 m, a surface crust has formed.

Deeper in the snowpack, older weak layers around 100 cm deep were active during the recent cycle but are now unlikely to be a concern as the snowpack refreezes and strengthens.

Weather Summary

Saturday Night

Mostly cloudy. 1 to 5 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Sunday

Mix of sun and clouds. 40 km/h west ridgetop wind. Treeline temperature -8 °C.

Monday

Mostly sunny. 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1700 m.

Tuesday

Mostly cloudy. 5 to 10 cm of snow. 70 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind-affected terrain.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Limit exposure to steep, sun exposed slopes, especially when the solar radiation is strong.

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.

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.