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Avalanche Forecast

Archived

Feb 28th, 2022–Mar 1st, 2022

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.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

Higher precipitation amounts in the southern part of the bulletin region. new snow arrived with minimal wind effect, yet more snow and stronger winds are forecasted for Wednesday.Great skiing found in most sheltered locations.

Weather Forecast

Tuesday:Flurries.

Accumulation: 8 cm.

Alpine temperature: High -3 °C.

Ridge wind southwest: 20 km/h gusting to 65 km/h.

Freezing level: 1800 metres.

Wednesday:Cloudy with scattered flurries.

Accumulation: 5 cm.

Alpine temperature: Low -8 °C, High -5 °C.

Mostly light ridge wind occasionally gusting to 35 km/h.

Freezing level: 1600 metres.

Snowpack Summary

10 cm of new snow over sun crust on solar slopes and old wind slabs in wind ward areas. Alpine stripped to rock at ridge top & open features. There is a weak snow layer at the bottom of the snowpack, this is widespread throughout the park.

Avalanche Summary

1 small natural wind slab observed on steep rocky open tree line slope on Monday.1 size 2 wind slab avalanche noted on Saturday in steep Alpine terrain, east aspect.

Confidence

Forecast snowfall amounts are uncertain

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.