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Avalanche Forecast

Archived

Mar 6th, 2026–Mar 7th, 2026

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

Regions

Sea To Sky, Brandywine, Garibaldi, Spearhead.

Freezing levels are rising. If you experience rain falling on dry snow, expect hazard to increase rapidly.

Wind continues to blow, be careful transitioning into wind-affected terrain.

Confidence

Moderate

  • We are uncertain due to a highly variable snowpack.
  • We are uncertain due to rapidly changing freezing levels.

Avalanche Summary

On Thursday, several natural and skier accidental size 1 to 1.5 wind slab avalanches occurred. Additionally, one natural avalanche was caused by cornice fall. Recent weather has formed large fragile cornices.

On Wednesday, explosive work produced several size 1 to 2 storm slab avalanches in the Whistler area as well as a couple size 2 cornice avalanches.

On Tuesday, explosive work produced several size 2 cornice avalanches in the Whistler area.

Snowpack Summary

Up to 30 cm of recent snow that arrived with strong southerly winds has been redistributed into deeper deposits in wind-loaded areas. This new snow overlies a melt-freeze crust on solar aspects and previously wind-affected surfaces at higher elevations.

Below treeline snow is rain-soaked and becoming isothermal.

30 to 60 cm of storm snow from the past week may be sitting on a layer of surface hoar, facets or a crust. There has been no reactivity on these layers recently.

Another weak layer consisting of a crust with facets from early February is buried 50 to 100+ cm deep. There has been no reactivity on this layer in tests or in avalanches recently.

The remaining snowpack appears to be well settled and bonded.

Weather Summary

Friday Night

Cloudy. 1 to 2 mm of precipitation. 50 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m.

Saturday

Cloudy. 2 to 5 mm of precipitation. 50 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 1700 m.

Sunday

Mostly cloudy. 15 to 20 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.

Monday

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

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The more the snowpack warms up and weakens, the more conservative your terrain selection should be.
  • Avoid freshly wind-loaded terrain features.
  • Use extra caution for areas that are experiencing rapidly warming temperatures for the first time.
  • 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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.