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Avalanche Forecast

Archived

Mar 28th, 2024–Mar 29th, 2024

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

Regions

South Coast, North Shore, Sky Pilot, Tetrahedron.

Expect to find wind affected deposits of dry snow as you gain elevation.

Watch for reactivity around ridgelines.

Confidence

High

Avalanche Summary

Small wet avalanches were produced yesterday with warm temperatures and snowfall.

Wet avalanches are expected to be unlikely on Friday, however riders may be able to trigger wind slabs at higher elevations - above the freezing line.

Snowpack Summary

Recent snowfall has reached 50 cm in some areas, with reports indicating this new snow is bonding well with the old snow surface. Wind affect may be found on north facing slopes at higher elevations.

The recent snow sits atop a widespread crust layer and a dense and well-bonded snowpack.

Weather Summary

Thursday Night

Light snowfall continues with 10 cm possible above 1000 m, with wet snow or rain below. Cloudy skies and 40 km/h southeast winds.

Friday

A mix of sun and cloud with isolated flurries. 10 km/h southeast ridgetop wind. Treeline temperature 0 °C. Freezing level rises to 1500 m in the afternoon.

Saturday

Mostly sunny. 25 km/h northwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1600 m.

Sunday

Mostly sunny. 30 km/h northwest ridgetop wind, with strong gusts. Freezing level begins at 1600 m and rises to 3000 m by afternoon, bringing treeline temperatures to +12 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Investigate the bond of the recent snow before committing to your line.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.

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.