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Avalanche Forecast

Archived

Feb 5th, 2022–Feb 6th, 2022

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

Regions

South Coast.

Pay attention to temperatures and the snow surface. Avalanche activity could increase as the snow surface becomes moist.

Confidence

Moderate -

Weather Forecast

Saturday night: No new snow expected. Light northwest winds shifting to moderate southwest. Freezing levels falling to 1000 m. 

Sunday: A mix of sun and cloud with no snow expected during the day. Moderate southwest winds and freezing levels rising to 2000 m.

Monday: Stormy weather with 10 mm of precipitation and moderate southwest winds. Freezing level around 1500 m.

Tuesday: trace amounts of precipitation with light southwest winds. Freezing level staying around 1500m.

Avalanche Summary

Numerous wet loose natural and skier triggered avalanches were observed on Friday.

If you observe avalanche activity in the backcountry please consider filling out a Mountain Information Network report.

Snowpack Summary

Up to 20 cm of moist snow fell Friday mixed with rain. This overlies a melt freeze crust that likely extends to the top of treeline. Below this crust 20 to 60 cm of dry snow sits above another thick and supportive crust that extends to mountain top. In the far north and east of the forecast region, a layer of facets and surface hoar could be found above this crust.

The middle and base of the snowpack are well settled and strong.

Terrain and Travel

  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • Be carefull with sluffing in steep terrain, especially above cliffs and terrain traps.
  • Watch for newly formed and reactive wind slabs 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.