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Avalanche Forecast

Archived

Apr 22nd, 2013–Apr 23rd, 2013

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Kananaskis.

Bulletins will be issued intermittently for the remainder of the season.Solar aspects will experience an increase in Avalanche Danger during periods of intense solar radiation, warm temperatures, or rain. Time your trip accordingly.

Confidence

Good - Freezing levels are uncertain

Weather Forecast

Light flurries expected on Tuesday with with winds out of the NW. Freezing levels will reach 1900m. Wednesday should bring warmer temperatures, strong winds and a mix of sun and cloud.

Avalanche Summary

Numerous sluffs up to size 1.5 in the past 24 hours. A few slab avalanches up to size 2.0 have also been observed in last 24-48 hours. Most avalanches are occurring on steeper slopes in the alpine, some on N and E aspects and solar triggered slides on the southerly aspects.

Snowpack Summary

5 to 20cm of recent storm snow fell on previously formed crusts. Buried crusts are present on all aspects except above 2100m on N aspects. Moist snow today on solar aspects in the afternoon which will form new surface crusts overnight.

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.