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Avalanche Forecast

Archived

Apr 16th, 2013–Apr 17th, 2013

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

Kananaskis.

Sunny conditions on Wednesday will lead to rising avalanche danger on solar aspects. Time your trip appropriately and be aware of overhead terrain.

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Weather Forecast

Sunny periods are expected Wednesday with winds shifting from the NE to the W. Temperatures at ridgetop will be near -12 and no precipitation is expected.

Avalanche Summary

No new avalanches, but observations were extremely limited.

Snowpack Summary

Trace amounts of new snow overnight. Wind slabs are present in lee and cross-loaded terrain at higher elevations. Isolated pockets of wind slab are also found on S aspects. Previously formed crusts persist.

Problems

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.

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.