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Avalanche Forecast

Archived

Apr 1st, 2024–Apr 2nd, 2024

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.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

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

Expect storm slab formation on Tuesday with new snow, strong winds, and cooling temperatures.

Confidence

Moderate

Avalanche Summary

We expect recent warm temperatures and forecast heavy precipitation to produce a natural avalanche cycle at higher elevations.

Snowpack Summary

New rain and snow will fall atop generally moist snow surfaces or variable crusts. Dry snow may persist on the highest north-facing alpine slopes, but this is likely becoming increasingly hard to find.

The mid and lower snowpack is generally settled and strong. At lower elevations, spring is quickly approaching.

Weather Summary

Monday Night

Mostly cloudy with 0 to 2 mm of rain. 40 to 60 km/h southwest ridgetop wind. Treeline temperature +5 °C. Freezing level 3000 m.

Tuesday

Cloudy with 10 to 30 mm of rain and/or snow. Freezing level drops to 1200 m through the day. 70 to 90 km/h southwest ridgetop wind. Treeline temperature 0 °C.

Wednesday

Cloudy with 2 to 8 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 800 m.

Thursday

Mostly sunny. 10 to 30 km/h northeast ridgetop wind. Treeline temperature 0 °C. Freezing level 1300 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 changing conditions today, storm slabs may become increasingly reactive.
  • Snow is accumulating at higher elevations despite lower elevations being almost snow free

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.