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Avalanche Forecast

Archived

Nov 15th, 2017–Nov 16th, 2017

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

Regions

Jasper.

Good early season riding can be found at TL and above, though it can be difficult to access from below treeline Wind effect in the Alpine on Northerly aspects

Weather Forecast

Localized convective storms moving through the Icefields and Wilson regions. Actual amounts will very, from trace to 5 - 7cm overnight Wednesday. Temperatures will remain floating near -5. Light to moderate, gusty SE winds will be moving fresh snow in exposed areas.

Snowpack Summary

Only trace amounts of snow below 1700m. Above 2000m, a generally strong, and supportive early winter snowpack exists with depths ranging from 30 to 100+ cm depending on aspect and exposure to wind. Wind effect to the recent snow has loaded northerly exposed slopes and ridge tops in the alpine, expect this to continue.

Avalanche Summary

Observed no new avalanche activity on highway 93N. Climbers should still remain vigilant as even triggering a small avalanche in a gully feature or above cliffs can have severe consequences.

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.