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Avalanche Forecast

Archived

Apr 8th, 2021–Apr 9th, 2021

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.
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

Jasper.

The cornices are large and are generally sitting over the terrain where the best skiing can be found. New windslabs are forming as I write this...

Weather Forecast

Friday: Sunny with cloudy periods. High -2 in the alpine. Moderate to strong West winds. Freeze level 1900m

Saturday: Mainly cloudy with scattered flurries. Up to 4cm. High -6 in the alpine. Moderate to strong west winds. Freeze level 1200m

Sunday: A mix of sun, cloud and isolated flurries. high -6 in the alpine. Light west winds. Freeze level 1600m

Snowpack Summary

Up to 15cm of new snow sits on a thick crust that exists to ridgetop except on high north faces. This tops a well consolidated snowpack with the lower half composed of dense facets and decomposing crusts, none of which have been reactive in snowpack tests or recent avalanches. Large cornices observed overhead where good skiing can be found.

Avalanche Summary

No new avalanches observed or reported.

Confidence

Due to the number of field observations

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.

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.