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Avalanche Forecast

Archived

Apr 8th, 2025–Apr 9th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
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.
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, Harrison-Fraser.

Storm slabs may need another day to bond at upper elevations.

Pay attention to changing conditions with elevation and aspect.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported aside from some minor sluffing during periods of heavy rain. Observations have been very limited in the region.

Looking forward, storm slabs are expected to be reactive to human-triggering at upper elevations.

If you head into the backcountry, please consider submitting a MIN report.

Snowpack Summary

Stormy conditions and fluctuating freezing levels over the past few days have deposited over 100 mm of rain in parts of the region at lower elevations, with snow up high. An additional 15 to 30 cm of snow is expected to fall overnight above 1200 m before we get a break from the storm on Wednesday. The new snow has likely formed reactive storm slabs that should bond fairly quickly, but may need another day or two to bond. Slabs are expected to be most reactive in wind-loaded terrain at upper elevations. Otherwise, the snowpack is strong and bonded. At lower elevations, the snowpack is rain-saturated and thins out quickly.

Weather Summary

Tuesday Night

Cloudy with 15 to 30 cm of snow above 1200 m, potential rain below. 40 to 50 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1400 m falling to 1100 m.

Wednesday

Cloudy. 20 to 30 km/h south ridgetop wind. Treeline temperature -1 °C. Freezing level rising to 1500 m.

Thursday

Cloudy with 30 to 60 mm of heavy rain up to 1600 m, potential snow above. 50 to 60 km/h south ridgetop wind. Treeline temperature +2 °C. Freezing level rising to 1800 m.

Friday

Partly cloudy, with isolated flurries to 5 cm. 10 to 15 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level rising to 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use small, low consequence slopes to test the bond of the new snow.
  • If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
  • Keep your guard up as storm slabs may remain sensitive to human triggering.

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.