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Avalanche Forecast

Archived

Dec 11th, 2011–Dec 12th, 2011

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

Northwest Inland.

Confidence

Fair - Intensity of incoming weather is uncertain on Monday

Weather Forecast

5 cms of snow accompanied by moderate westerly winds are expected for monday. Light snowfall with moderate southwest winds will continue for tuesday morning.On wednesday scattered cloud, minimal precipitation and light southerly winds are forecast for the region.Freezing levels are expected to remain at surface for the forecast period.

Avalanche Summary

No recent avalanche activity has been reported.

Snowpack Summary

2cms of snow fell with minimal wind in the Smithers area on friday night with an additional 1 cm on saturday night. For the most part the new snow is on some sort of hard crust or wind-sculpted snow, which probably has surface hoar growing on it and facets forming beneath it. The mid and lower snowpack are generally quite strong. There may have been more new snow and wind to the west, but data streams are extremely sparse. If you have any info from the field, we would love to hear from you. Write to us at [email protected]

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.