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Avalanche Forecast

Archived

Mar 27th, 2026–Mar 28th, 2026

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

Coquihalla, Harrison-Fraser, Manning, Skagit.

Up to 40 cm of storm snow overlies a thick hard crust and solar input is likely to trigger avalanches today.

Seek simple terrain and avoid steep sunny slopes.

Confidence

Moderate

  • We are uncertain about how the timing or intensity of solar radiation will affect the snowpack.

Avalanche Summary

No new avalanches have been reported.

If you are heading into the backcountry, consider sharing your observations and posting a MIN.

Snowpack Summary

30-50 cm of recent snow is settling above a widespread thick. hard and smooth crust that exists everywhere except the highest alpine terrain. Expect this snow to rapidly become moist and unconsolidated when the sun comes out.

Extreme southwest wind on Tuesday gradually eased to strong and then moderate for Thursday, redistributing the storm snow into leeward terrain, expect slab depths to be deeper there.

Older crust layers, now buried 100 to 200 cm deep, are no longer a concern, and the lower snowpack is generally strong and bonded.

Weather Summary

Friday Night
Mostly clear skies. 40 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1400 m.

Saturday
Mix of sun and clouds. 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday
Mix of sun and clouds. 3 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Monday
Mix of sun and clouds. 3 to 10 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -9 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the crust.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

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.