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Avalanche Forecast

Archived

Apr 23rd, 2024–Apr 24th, 2024

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

Vancouver Island, East Island, North Island, South Island, West Island.

Be prepared to dial back your terrain choice as new snow accumulates.

New snow may not bond well to the underlying crust.

Confidence

Moderate

Avalanche Summary

Observations are very limited  on the Island this time of year.

If you have any recent photos or observations, please submit them to the Mountain Information Network, observations are limited in the spring.

Snowpack Summary

Over 20 cm of new snow may accumulate over a crust on all aspects at higher elevations. New wind slabs could form on easterly slopes near ridge crests. Below treeline rain will keep the snow surface wet or moist where snow still exists. Most below treeline terrain is already snow free.

Weather Summary

Tuesday Night

Increasing cloud with 3 to 8 cm of new snow at higher elevations. 5 to 15 km/h variable alpine wind. Freezing level falling to 1600 m.

Wednesday

Cloudy with up to 15 cm of new snow at higher elevations. 5 to 15 km/h west alpine wind. Freezing level rising to 1500 m.

Thursday

Cloudy with 5 to 10 cm of new snow at higher elevations. 10 to 20 km/h southeast alpine wind.  Freezing level rising to 1400 m.

Friday

Mostly cloudy with up to 5 mm of rain. 5 to 15 km/h variable alpine wind. Freezing level rising to 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Closely monitor how the new snow is bonding to the crust.
  • Expect shallow snow cover that barely covers ground roughness.

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.