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Avalanche Forecast

Archived

Mar 14th, 2026–Mar 17th, 2026

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

We are transitioning from a cold and snowy week to warmer weather.

Weather models are giving conflicting outputs on how high freezing levels will rise on Monday and Tuesday. Be sure to check the Mountain Weather Forecast before you head into the backcountry.

Confidence

Low

  • We are uncertain due to the track and intensity of the incoming weather system.

Avalanche Summary

Several wind slab avalanches were observed in the last 72 hours. These avalanches were from alpine and treeline start zones and up to size 2.5.

Snowpack Summary

Up to 65cm of new snow has been redistributed into wind slabs in lee features. This sits over variable surfaces including widespread wind affected snow and a 3-8cm thick crust treeline and below treeline. Beneath this, 30–50 cm of settled snow overlies multiple crusts. The lower snowpack is generally well settled.

Weather Summary

Sunday

Isolated flurries. Alpine low of -16 °C and high of -9 °C. Wind gusting to 35 km/h. Freezing level at valley bottom.

Monday

Scattered flurries. Alpine low of -10 °C and high of 2 °C. Wind gusting to 70 km/h. Freezing level at 2300m.

Tuesday

Sunny periods and isolated showers. Alpine low of 1 °C and high of 3 °C. Wind gusting to 75 km/h. Freezing level at 2400m.

Current weather forecast: Mountain Weather Forecast

Terrain and Travel Advice

  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Recent strong wind means wind slabs may be found farther downslope than expected.

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.