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Avalanche Forecast

Archived

Mar 25th, 2022–Mar 26th, 2022

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

Regions

Jasper.

Watch for the avalanche hazard to rise with the freezing levels this weekend.

Road closures are possible on Highway 93N and Maligne Road, Saturday through Monday.

Check Alberta 511 for updates.

Weather Forecast

Rising freezing levels, poor over night recovery, and light precip are in store for the weekend. Moderate to strong winds are also forecast for the alpine.

Snowpack Summary

0-10cm low density new snow, redistributed by strong SW winds, overlies a sun crust at all elevations and a melt-freeze crust up to 2100m on all aspects

Snow pack below 1700m is either wet or refrozen depending on the time of day and the solar input.

Avalanche Summary

The widespread wet loose avalanche cycle has tapered off thanks to good overnight freezes and colder temps. A few wind slabs up to size 1.5 have been noted in the alpine.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.