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Avalanche Forecast

Archived

Mar 22nd, 2022–Mar 23rd, 2022

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

South Coast.

Continue to assess the snow surface as you travel through terrain. If it is moist then wet loose avalanches could still occur.

Confidence

Moderate -

Weather Forecast

Tuesday night: Light rain and freezing levels around 2500 m. Light to moderate south winds.

Wednesday: Mostly cloudy with 10 cm of new snow expected at higher elevations. Light to moderate variable winds with freezing levels falling to 1500 m.

Thursday: Mostly cloudy with no new snow expected. Freezing levels around 1500 m and light to moderate variable winds.

Friday: Mostly cloudy with no new snow expected. Freezing levels around 1400 m and light southerly winds.

Avalanche Summary

On Monday skiers triggered storm and wind slab avalanches up to size two. These avalanches were generally at treeline and on northerly aspects.

Snowpack Summary

Wind slabs could be found on northerly aspects at higher elevations. Moist snow will likely be found on all aspects and elevations. As the freezing level falls a crust is likely to form.

The upper snowpack contains several crust layers that can likely be found on all aspects and elevations except high north terrain. The snowpack is considered well-settled and strong below these crusts.

Terrain and Travel

  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • As surface loses cohesion due to melting, loose wet avalanches become common in steeper terrain.
  • Use ridges or ribs to avoid areas of wind loaded snow.
  • Be careful as you transition into wind affected terrain.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

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.