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Avalanche Forecast

Archived

Apr 11th, 2021–Apr 14th, 2021

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

Waterton Lakes.

Cornices are large and present right now. Overall the travel is good in the mountains  with some decent skiing on high sheltered northerly terrain.

Weather Forecast

Mon: Mix of sun, cloud and isolated flurries. Alpine high -8 and light NE winds. Freezing level at the valley bottom.

Tues: Sun and cloud. Alpine high -8. Light E winds.

Avalanche Canada's Mountain Weather Forecast is a great regional-scale resource for up-to-date weather information. SPOTWX is a good resource for local scale weather forecasts.

Snowpack Summary

Up to 20cm of new snow  at TL and above on northerly terrain. This sits on a supportive crust that exists to ridgetop except on high north faces (starting to break down mid day). Overall a well consolidated snowpack with the lower half composed of dense facets and decomposing crusts, which haven't produced test results or recent avalanches.

Avalanche Summary

No new avalanches reported or observed.

Please consider submitting a MIN report if you see an avalanches.

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.