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Avalanche Forecast

Archived

Mar 18th, 2026–Mar 19th, 2026

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

Regions

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

The avalanche danger remains high in the alpine above the rain line. Loose wet avalanches may still be reactive to human triggers.

Confidence

Moderate

  • We are uncertain about how the snowpack will react to the forecast weather.
  • We are uncertain about alpine conditions due to limited field observations.

Avalanche Summary

Several slab and wet loose avalanches were reported since Monday, up to size 3.

If you are in the backcountry, please share your observations by posting a MIN.

Snowpack Summary

Rain continues to saturate the upper snowpack up to 2100 m in some areas. Above the rain line, new snow combined with strong south to southwest winds is building slabs in lee terrain.

A widespread crust is buried 20 to 60 cm deep below 2100 m. Beneath this, the snowpack is generally well settled with no significant layers of concern.

Weather Summary

Wednesday Night

Cloudy. 25 to 35 mm of rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2100 m.

Thursday

Cloudy. 20 to 25 mm of precipitation as snow or rain at treeline. 40 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1800 m.

Friday

Cloudy. 30 to 45 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1800 m.

Saturday

Mostly sunny. 1 to 4 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Keep in mind that the high density of wet avalanches can make them destructive.
  • Be alert to conditions that change with aspect and elevation.

Problems

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.

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.