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Avalanche Forecast

Archived

Mar 8th, 2026–Mar 9th, 2026

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

Regions

Sea To Sky, Brandywine, Garibaldi, Homathko, Spearhead, Tantalus, Sky Pilot.

Wind slabs remain possible following recent snow and strong alpine winds.

Significant uncertainty remains about how recent rapid weather changes have affected the snowpack.

Confidence

Moderate

  • We are uncertain due to the variability of wind effect on the snowpack.
  • We are uncertain due to rapidly changing freezing levels.

Avalanche Summary

Early reports from the Whistler area on Sunday morning suggest touchy wind slab conditions, with exposive control producing widespread wind slab avalanches above 1800 m, up to size 2.

Snowpack Summary

Unsettled and cool conditions on Monday could provide light snow at all elevations.

Above roughly 2000 m, 10 to 20 cm of snow on Saturday was accompanied by strong to extreme southerly winds. At lower elevations, any new snow will fall atop a thin crust or moist snow following rain on Saturday.

A crust with facets buried in early February lies approximately 60 to 120 cm below the surface. This layer has not produced any avalanches to date, but the current storm may add significant stress and provide more clarity on its reactivity.

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

Weather Summary

Sunday Night
Mostly cloudy. 1 to 5 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -8 °C.

Monday
Mostly cloudy. 5 to 10 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Tuesday
Mostly cloudy. 5 to 15 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Wednesday
Mix of sun and clouds. 5 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Approach lee and cross-loaded slopes with caution.
  • Avoid areas where the snow feels stiff and/or slabby.

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.