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Avalanche Forecast

Archived

Feb 11th, 2020–Feb 12th, 2020

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

Regions

Glacier.

There is some amazing skiing to be found right now!

Be aware some valleys have received more wind than others, so the presence of wind slabs at higher elevations should be investigated.

Weather Forecast

A trailing cold front will bring light snow today. A short-lived ridge builds tonight.

Today - Snow, tapering by mid-afternoon, 5cm. Winds mod W'ly gusting strong. Alpine high -7*C

Wed - Mix of sun and cloud, light W'ly winds, alpine high of -9*C

Thurs - Flurries amounting to 10cm. Mod SW'ly winds gusting strong. Alpine high of -7*C

Snowpack Summary

Moderate to strong SW winds are currently redistributing low density snow at ridge-top and exposed tree-line elevations. Variable soft slab should be expected in the immediate lee of ridges and across exposed alpine slopes. Below 1800m, the Feb 1 Melt-freeze crust is down 30cm and observed up to 10cm thick at 1300m.

Avalanche Summary

Numerous dry point releases (less than sz 1) were observed from steep/extreme terrain yesterday in the Asulkan Valley. A brief period of strong solar radiation triggered a sz 1.5 that hit a skier on the steep, S couloirs of Abbott, knocking their ski off.

Confidence

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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.