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Archived

Avalanche Forecast

Mar 28th, 2021–Mar 31st, 2021
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Waterton Lakes.

10-20cm of new snow is expected Sunday evening with strong to extreme winds. Pay attention to the rapidly changing conditions if you choose to brave the weather.

Weather Forecast

Tonight: Wet snow mixed with rain in the townsite. 10-15 cm snowfall at Cameron Lake. Alpine high of +4 with freezing level at 1800m. Moderate SW wind with extreme gusts up to 120km/h

Mon: Mainly cloudy with scattered flurries. 2-5cm of snow with freezing level at valley bottom. Moderate SW wind with strong gusts

Tues: A mix of sun and cloud

Snowpack Summary

10-20cm of new snow is expected on Sun PM with strong- extreme SW wind. This will create fresh wind slabs over a variety of old surfaces including a thick crust that exists to ridgetop (except on high N aspects) or old wind slab on N-E alpine slopes. Mid snowpack is well consolidated with the lower half composed of dense facets & decomposing crusts

Avalanche Summary

No recent avalanche activity reported.

Confidence

Avalanche Problems

Wind Slabs

Fresh wind slabs will be most reactive during the storm on Sunday / Monday. Periods of intense wind transport may cause wind slabs to form low in start zones.

  • Use caution in lee areas. New snowfall mixed with wind loading is creating Wind Slabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2