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Avalanche Forecast

Archived

Mar 18th, 2016–Mar 21st, 2016

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

Waterton Lakes.

Good skiing will reward those who get out early Saturday before it warms up.  JH

Weather Forecast

The high pressure system over our area will persist until late Sunday.  This will mean mostly clear skies, light winds and warming temperatures through the weekend.  By Monday, clouds will increase and we may see some light precipitation as a low pressure system makes landfall on the south Coast.

Snowpack Summary

Up to 15cm of low density new snow overlies: a supportive crust down 10cm below treeline, thick cohesive old storm slabs at treeline and in the alpine, and bare ground many areas in the east. The mid and lower snowpack is generally well consolidated, the mid pack is a series of strong crusts into the alpine on solar aspects.

Avalanche Summary

Numerous small loose snow avalanches occurred during Thursday's snowfall, and as a result of Friday's rapidly warming temperatures.

Confidence

Due to the number of field observations

Problems

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.

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.