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Avalanche Forecast

Archived

Feb 5th, 2021–Feb 8th, 2021

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

Regions

Waterton Lakes.

Storm totals in the park will grow to 20-30cms with incoming snow on Saturday. Be cautious as you enter wind affected terrain, and enjoy the good skiing in sheltered areas.

Weather Forecast

Saturday: Flurries with 5-10cm of snow. Temperatures dropping the day, with an overnight low of -30, and a slight inversion at cameron lake. Light west wind switching east overnight with moderate gusts at ridgetop.

Sunday: Cloudy with sunny periods. Really, really cold temperatures. Wind light from the east.

Monday: Cold and clear with calm winds.

Snowpack Summary

Southwest through northeast wind has redistributed 10-15cm recent storm snow creating wind slab on lee and cross loaded slopes. Fresh wind slab sits on a firm crust below 1900m. The mid snowpack is well consolidated at Cameron Lake but the snowpack becomes shallow and faceted in areas east of the divide.

Avalanche Summary

Small loose dry avalanches were reported in steep terrain on friday

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 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.