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Avalanche Forecast

Archived

Jan 5th, 2017–Jan 6th, 2017

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

Regions

Jasper.

Just a dusting of new snow leading into the weekend. Mostly cosmetic, not yet enough to improve ski quality.

Weather Forecast

Warmer temps in the west and south of the park with treeline highs of -8 and lows of -17. Snow flurries may produce up to 5cm of snow in the next 24 hours. Winds will be light from from the west.

Snowpack Summary

Cold and below average snowfall has left the snowpack weak, shallow and with several concerning yet inactive layers. The base is rapidly turning to depth hoar above which is a significant rain crust now buried up to a meter below the surface. The upper snowpack is stratified with wind slabs, the bond between is considered fairly suspect.

Avalanche Summary

No new avalanches have been observed or reported in the past 24 hours .

Confidence

Wind effect is extremely variable

Problems

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.

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.