Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Apr 2nd, 2024–Apr 3rd, 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

South Coast, North Shore, Tetrahedron.

Fresh, reactive wind slabs are expected to form at upper elevations with strong winds.

As rain will be turning into snow, total snowfall amounts are uncertain.

Confidence

Moderate

Avalanche Summary

Evidence of a small loose avalanche from the past weekend may still be visible. The likelihood of avalanches will increase with ongoing strong winds and rain turning into snow on Tuesday night.

Snowpack Summary

At lower elevations, rain has created a moist snow surface. At higher elevations, new snow accumulates on a crust or moist snow except high north-facing alpine where the snow surface may remain dry.

Weather Summary

Tuesday Night

Cloudy with 10 to 20 mm of rain turning into snow. Ridgetop winds southwest, 40 to 60 km/h. Treeline temperature drops to 0°C. Freezing level dropping to 1000 m.

Wednesday

A mix of sun and cloud, with isolated convective flurries. Ridgetop winds southwest, 20 to 30 km/h. Treeline temperature -5 °C. Freezing level at valley bottom.

Thursday

A mix of sun and cloud. Ridgetop winds northeast, 20 to 30 km/h. Treeline temperature rising to 0 °C. Freezing level rising to 1500 m.

Friday

A mix of sun and cloud. Ridgetop winds northeast, 20 to 30 km/h. Treeline temperature +3 °C. Freezing level rising to 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Snow is accumulating at higher elevations despite lower elevations being almost snow free
  • Closely monitor how the new snow is bonding to the old surface.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.