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Avalanche Forecast

Archived

Feb 28th, 2022–Mar 3rd, 2022

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

Regions

Waterton Lakes.

Skiing near the continental divide has been refreshed with new snow. However high freezing levels will effect ski quality throughout the week.

As snowfall amounts increase we expect to see a wider avalanche cycle.

Weather Forecast

Tonight: 15 cm snow forecast for the continental divide.

Tues: Cloudy with flurries, amounting 10 cm. Moderate SW winds gusting extreme. Freezing levels 2000m.

Wed: Cloudy with flurries, amounting 10 cm. Moderate SW winds. Freezing levels 1800m.

Thurs: Cloudy with sunny periods, chance of flurries. Light NE winds. Freezing levels valley bottom.

Snowpack Summary

30 cm storm snow fell close to the dived on Monday. This tappers to 10 cm in front ranges. Warm temps are creating soft slabs in storm snow. This overlies windslab 10-30 cm deep. Feb 15 crust is 1 cm thick and exists to tree line all aspects and higher on solar aspects. Well settled midpack. Facets above Dec 4 crust, buried 150-200 cm.

Avalanche Summary

A few natural wind slab avalanches have been reported in the park up to sz 2 this week. Poor visibility monday kept us from seeing a avalanche cycle within storm snow. Thanks for the great observations on the Mountain Information Network, we love seeing your adventures.

Confidence

Intensity of incoming weather systems is uncertain

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.