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Avalanche Forecast

Archived

Feb 15th, 2019–Feb 16th, 2019

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 unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Northwest Inland.

It may still be possible to trigger wind slabs at higher elevations.

Confidence

High -

Weather Forecast

FRIDAY NIGHT: Cloudy with light snowfall, accumulation 1 to 2 cm.SATURDAY: Cloudy with light snowfall, accumulation 1 to 2 cm, light northeast wind, alpine temperature -20 C.SUNDAY: Clear skies, light to moderate northeast wind, alpine temperature -13 C.MONDAY: Mix of sun and cloud with isolated flurries, trace accumulation, moderate northwest wind, alpine temperature -8 C.

Avalanche Summary

No recent avalanches were observed in the region.

Snowpack Summary

The snow surface has been heavily affected by strong wind. You will likely find a variety of hard slabs, wind-pressed snow, sastrugi, sugary faceted snow, and melt-freeze crust where the wind has scoured down to it. In sheltered areas below treeline, you may still find pockets of soft, faceted snow.In the south of the region, the remainder of the snowpack is well-settled. In the north of the region, 50 to 100 cm of snow may overly two weak layers of feathery surface hoar crystals or faceted grains.

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.