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Archived

Avalanche Forecast

Dec 1st, 2019–Dec 4th, 2019
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
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Waterton Lakes.

A strong, localized wind event has scoured the majority of our terrain. Areas that still hold snow will have pockets of windslab and heavy loading.  The Akamina Parkway remains closed to public access due to construction.

Weather Forecast

Monday: A mix of sun and cloud. Winds West 50 km/h  gusting  90km/h

Tuesday: A mix of sun and cloud. Strong West Winds.

Wednesday:  A mix of sun and cloud and continued strong Westerly Winds

Snowpack Summary

A strong, localized wind event has scoured the majority of our terrain. Areas that still hold snow will have pockets of windslab and heavy loading.  New windslab overlies a variety of bed surface including bare ground, old windslab and a melt freeze crust where snow from the late Sept. snowfall did not melt out. Snowpack depth varies from 0 -90 cm.

Avalanche Summary

No new avalanches observed.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Wind Slabs

Any terrain with a skiable snowpack will likely have Windslab. Our last storm was accompanied by NE winds. We have now returned to a typical SW flow. The combination of these two events has seen Windslab development on all aspects.

  • Be careful with wind loaded pockets. Be aware of wide variation in snowpack depth
  • Watch for shooting cracks or stiffer feeling snow. Avoid areas that appear wind loaded.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2