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Avalanche Forecast

Archived

Mar 28th, 2026–Mar 29th, 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 Rockies, East Kakwa, Kakwa, McGregor, Pine Pass, Renshaw, Robson, Tumbler.

Watch for reactive wind slabs at upper elevations that may propagate surprisingly wide on the slick underlying crust.

Confidence

Moderate

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

Avalanche Summary

In the past week, numerous natural and rider-triggered wind slabs up to size 2 have been reported with windy and stormy conditions.

Looking forward to Sunday, we expect that rider-triggered wind slabs will remain possible, especially in north through east aspects in the alpine and treeline.

Snowpack Summary

Up to 20 cm of recent snowfall has been redistributed by strong southwest winds into deeper deposits on north and east-facing slopes.

The 10 to 15 cm thick crust that formed as a result of the recent atmospheric river event is found down 40 to 60 cm. This crust extends up to at least 1500 m in the north and 2000 m in the south. Moist snow is found beneath this crust.

The early February crust is found at depths of 100 to 160 cm. This layer is not currently a concern.

The remainder of the snowpack is generally well settled and bonded.

Weather Summary

Saturday Night

Mostly clear skies. 10 km/h south ridgetop wind. Treeline temperature -9 °C.

Sunday

Mostly cloudy. 2 to 3 cm of snow. 10 km/h south ridgetop wind. Treeline temperature -10 °C.

Monday

Mix of sun and clouds. 1 to 2 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -10 °C.

Tuesday

Mostly cloudy. 1 to 3 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Recent strong wind means wind slabs may be found farther downslope than expected.
  • Closely monitor how the new snow is bonding to the old surface.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

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.