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Avalanche Forecast

Archived

Nov 25th, 2018–Nov 26th, 2018

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

Regions

South Coast Inland.

Avalanche danger will be increasing over the day, especially for travelers set on following the snow line up into the alpine.

Confidence

Moderate - Forecast snowfall amounts are uncertain

Weather Forecast

Sunday night: Scattered flurries bringing up to 5 cm of new snow in the north of the region. Rain showers in the south. Moderate to strong southwest winds.Monday: Moderate rain with possible accumulations of up to 15 cm of new snow above about 1800 metres, continuing overnight. Moderate to strong south winds. Alpine high temperatures around 0 with freezing levels of 2100-2200 metres.Tuesday: Continuing wet flurries bringing up to 10 cm of new snow above about 1600 metres. Rain at lower elevations. Moderate to strong south winds. Alpine high temperatures around 0 with freezing levels around 2000 metres.Wednesday: Mainly cloudy with scattered flurries bringing about 5 cm of new snow. Moderate southwest winds. Alpine high temperatures around -2 with freezing levels around 1500 metres.

Avalanche Summary

No recent avalanches observed.Please submit any observations you have to the Mountain Information Network here.

Snowpack Summary

Snow depths are around 50 to 80 cm at treeline and alpine elevations, although there may be deeper deposits in wind-loaded areas. Approximately 30 cm of recent snow sits above a layer of surface hoar (north aspects) or a crust (south aspects). All but the highest elevation and/or smoothest slopes have insufficient snow cover for avalanches to occur at this time.

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.

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.