Avalanche Forecast
Issued: Mar 27th, 2020 5:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
MBender,
Avalanche Canada
New snow and wind expected through the weekend will build reactive storm slabs. Snow amounts may vary throughout the region. If there is more than 20 cm of new now overnight Friday, danger may be higher than indicated. This is the last forecast for the season.
Summary
Confidence
Moderate - Uncertainty is due to the limited number of field observations. Forecast precipitation (either snow or rain) amounts are uncertain.
Weather Forecast
FRIDAY Night: Snow, accumulation 10-20 cm. Moderate to strong west wind. Alpine high around -10 C.
SATURDAY: Flurries, accumulation 5-15 cm. Moderate to strong southwest wind. Alpine high around -13 C.
SUNDAY: Flurries, accumulation 5-10 cm. Moderate to strong southwest wind. Alpine high around -13 C.
MONDAY: Mainly cloudy with sunny periods. Moderate southeast wind. Alpine high around -15. C.
Avalanche Summary
No new avalanches were reported over the past couple of days.Â
As snow accumulates and the wind blows moderate to strong through the weekend, expect to see an increase in storm and wind slab avalanche activity.Â
Snowpack Summary
15-35 cm of recent new snow may now be sitting on top of a variety of old surfaces including hard wind affected snow, sun crust on slopes facing the sun and a melt freeze crust at lower elevations.
At lower elevations, two surface hoar layers 50-60 cm and 75-90 cm below the surface may still be present in the northern part of the region. The snowpack below is reported to be strong and well settled.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
- Storm slab size and sensitivity to triggering will likely increase through the day.
Problems
Storm Slabs
Watch for increasingly sensitive storm and wind slabs at all elevations as new snow and wind arrive together.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 30th, 2020 5:00PM
