Avalanche Forecast
Issued: Nov 27th, 2019 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Adam Greenberg,
Parks Canada
Waterton was hit hard by the recent upslope storm, and a widespread avalanche cycle is expected. The Akamina Parkway remains closed to public access due to construction.
Summary
Weather Forecast
Thursday: Moderate to Strong NE winds, and snow tapering off with the possibility of an additional 5-10cm and cold temperatures.
Friday: Clearing with continued cold temps, Light to Moderate NE winds
Saturday: Temperatures rising with a high of -5 in town, light westerly winds and no new snow.
Snowpack Summary
A strong upslope storm has so far deposited 50-70 cm of snow in the front ranges, which is forming new windslabs with moderate to strong northeast winds. This overlies a variety of bed surface including old wind slabs from strong southwest winds, bare ground and a thick melt freeze crust where snow from the late September snowfall did not melt out.
Avalanche Summary
Forecasters were not able to get out in the field today, but a widespread avalanche cycle is expected at all elevations.
Confidence
Problems
Storm Slabs
50-70cm of new snow has been transported by moderate to strong NE winds, creating slabs that will be very easy for a person to trigger. We are expecting to see a natural avalanche cycle at all elevations.
- The new snow will require several days to settle and stabilize.
- Keep an eye out for reverse loading created by an upslope storm.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Nov 30th, 2019 4:00PM
