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Avalanche Forecast

Archived

Mar 28th, 2025–Mar 29th, 2025

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

South Coast, Powell River, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron.

Storm slabs are building at treeline and above.

Use conservative terrain selection during periods of rapid loading from new snow or rain.

Confidence

Moderate

Avalanche Summary

Reports have been very limited during the recent stormy period. Several wet loose avalanches were reported across the region over the past few days, generally in the small (size 1-1.5) range.

We expect with further snowfall accumulating overnight and through Saturday that storm slabs will be reactive.

Snowpack Summary

Over 100 mm of precipitation has fallen in parts of the region over the past few days. Freezing levels have fluctuated, with periods of rain reaching mountaintops. Temperatures are expected to drop, and 30 to 50 cm of fresh snow is anticipated above 1000 m overnight and through Saturday. The highest precipitation is forecast for the North Shore. These conditions will create reactive storm slabs at upper elevations, with deeper and more sensitive deposits forming on northerly slopes due to strong southerly winds. At lower elevations, expect a moist or wet snowpack.

For more details on the North Shore snowpack, check out this video.

Weather Summary

Friday Night

Cloudy, with 15 to 25 cm of snow above 1000 m, potential rain below. Highest amounts for the North Shore. 35 to 45 km/h south ridgetop winds. Treeline temperature -3 °C. Freezing level around 1400 m, dropping to 1000 m.

Saturday

Cloudy with 15 to 25 cm of snow above 1000 m, potential rain below. Highest amounts for the North Shore. 35 km/h south ridgetop winds. Treeline temperature -2 °C. Freezing level rising to 1300 m.

Sunday

Sunny. 25 to 35 km/h southeast ridgetop winds. Treeline temperature +2 °C. Freezing level rising to 1800 m.

Monday

Cloudy with 15 to 30 cm of snow. 30 to 40 km/h variable ridgetop winds. Treeline temperature -3 °C. Freezing level around 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Keep in mind that the high density of wet avalanches can make them destructive.
  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.