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Avalanche Forecast

Archived

Feb 10th, 2022–Feb 13th, 2022

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

Regions

Waterton Lakes.

Snow and ice are disappearing especially near town.

Evaluate temperatures closely when choosing your skiing and climbing objectives for the day.

Higher elevation ice on north aspects is still in good shape.

Weather Forecast

Friday: Clear skies, alpine temps climbing to -2. Winds moderate SW, FL 1500m

Saturday: Clear skies, alpine temps  climbing to -2. Winds moderate SW, FL 1500m

Sunday: Partially cloudy, alpine temps climbing to +2. Winds light to moderate SW, FL 2200m

*Uncertainty exists around forecasted temps. Expect the east side of the park to be warmer.

Snowpack Summary

Warm temps and X-westerly wind has built 20- 40 cm windslabs in lees. Moist snow to approximately 2000m on Thursday's warm up. This overlies Jan 18 crust extending all aspects up to 2000m, and higher on solar aspects. Well settled midpack, with facets above Dec 4 crust, buried 150-200 cm, above Nov layers.

Avalanche Summary

A few small wet loose avalanches observed during peak warming on Thursday. Please post any avalanche observations on the Mountain Information Network, we really appreciate any observations.

Confidence

Timing or intensity of solar radiation is uncertain

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.