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Avalanche Forecast

Archived

Mar 16th, 2025–Mar 17th, 2025

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

Regions

South Coast, Powell River, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron, Harrison-Fraser, Skagit.

Unsettled conditions continue, with the potential for significant localized snowfall.

Verify conditions as you go and adjust terrain choices if you notice signs of instability.

Confidence

Moderate

Avalanche Summary

Small loose dry and storm slabs (size 1) were easily triggered by skiers on steep slopes near Grouse Mountain and Sky Pilot Mountain on Friday.

Thanks for sharing your observations via the MIN if you are going out into the backcountry.

Snowpack Summary

The region received another 20 to 25 cm of new snow this weekend, totaling 120 cm of recent storm snow, which is settling out rapidly. Unsettled conditions have brought up to 35 cm of new snow in localized areas.

At upper elevations, strong winds have formed deeper deposits of wind-transported snow. At treeline and below, the new snow sits above a crust. The snow reportedly has a good bond to the underlying crust.

Below this, the snowpack is well-settled and strong.

Weather Summary

Sunday Night

Cloudy with 10 to 15 cm of new snow. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 800 m.

Monday

Partly cloudy with isolated flurries. 30 to 40 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1000 m.

Tuesday

Mix of sun and clouds. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1000 m.

Wednesday

Partly cloudy with isolated flurries. 40 to 50 km/h southeast ridgetop wind. Treeline temperature 0 °C. Freezing level 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep your guard up as storm slabs may remain sensitive to human triggering.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

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.