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Avalanche Forecast

Archived

Jan 21st, 2013–Jan 22nd, 2013

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

Regions

Kananaskis.

Ski quality continues to suffer in the wake of last weeks wind and heavy traffic.  Expect highly variable slab conditions - perhaps a few centimeters of new snow later Wednesday into Thursday AM.

Confidence

Good

Weather Forecast

No new precip in the forecasts until perhaps on Wednesday.  NW winds will be in the moderate to strong range.  Above seasonal temperature values.

Avalanche Summary

No new natural avalanches observed or reported.

Snowpack Summary

Surface layers and midpack continuing to facet away - winds generally calm and no redistribution of snow taking place.  Widespread wind effects in all elevation zones.

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.