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Avalanche Forecast

Archived

Mar 27th, 2026–Mar 28th, 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

North Rockies, East Kakwa, Kakwa, McGregor, Pine Pass, Renshaw, Robson, Tumbler.

Recent strong winds at higher elevations have formed wind slabs that are likely to remain reactive in exposed areas.

Confidence

Moderate

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

Avalanche Summary

Numerous naturally and skier-triggered storm slabs were reported in the region on Wednesday and Thursday. These avalanches ranged from size 1 to 2 and occurred on north through east aspects in the alpine and at treeline. Wind loading was likely a factor in the location of these avalanches.

Snowpack Summary

As much as 20 cm of snow has likely accumulated across parts of the region. Strong southwest winds are expected to have redistributed the snow 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

Friday Night
Mostly cloudy. 1 to 5 cm of snow. 20 km/h northwest ridgetop wind. Treeline temperature -11 °C.

Saturday
Mostly sunny. 10 km/h west ridgetop wind. Treeline temperature -10 °C.

Sunday
Mix of sun and clouds. 1 to 5 cm of snow. 10 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Monday
Mix of sun and clouds. 1 to 10 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -11 °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.