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Avalanche Forecast

Archived

Mar 27th, 2026–Mar 28th, 2026

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

Regions

North Columbia, South Columbia, Clemina, Esplanade, Jordan, North Monashee, North Selkirk, West Purcell, Badshot-Battle, Central Selkirk, Goat, Gold, Whatshan.

Use caution in recently wind-loaded terrain.

Even short periods of sun could increase the reactivity of wind slabs and cornices.

Confidence

High

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.

Avalanche Summary

Since Wednesday, several storm and wind slab avalanches up to size 2.5 have been observed. These avalanches have been triggered naturally, by explosives, and by skiers. Avalanches were predominantly triggered on north and east aspects at treeline and above. The atmospheric river crust has been the failure plane for almost all of them.

Snowpack Summary

Recent strong southwest wind has redistributed snow into deeper deposits on the north and east aspects. Exposed windward features are scoured at treeline and above.

The thick crust that formed as a result of the recent atmospheric river event is found down 40 to 80 cm. This crust extends up to at least 2300 m. Moist snow may be found beneath this crust, particularly at lower elevations.

Weak layers from February can be found down 150 cm and deeper. These layers remain a concern at high elevations where the crust from the atmospheric river might not exist.

Weather Summary

Friday Night
Partly cloudy. 1 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Saturday
Mix of sun and clouds. 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday
Mix of sun and clouds. 3 to 10 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Monday
Mostly cloudy. 2 to 10 cm of snow. 30 km/h northwest ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Be alert to conditions that change with elevation and sun exposure.

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.