Avalanche Forecast
Issued: Mar 7th, 2015 8:00AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
andrew jones,
Parks Canada
Strong winds have created touchy slabs near ridge line that are reactive to skiers.
Summary
Weather Forecast
Mostly cloudy with trace amounts of precipitation throughout the day. Freezing levels are expected to rise to 1700m this afternoon, with an alpine temperature of -2 and westerly winds gusting to 40km/h. The high pressure holding pattern continues to dominate, at least until early next week.
Snowpack Summary
A bulletproof crust below treeline makes for challenging up-tracks. In open areas, wind has created variable conditions ranging from wind deposited powder, to breakable crust, to boiler plate ice. Pockets of touchy wind slab up to 20cm deep exist near ridge line. Wind slabs overlie a crust on S aspects.
Avalanche Summary
Yesterday, a field team on Ursus Minor observed several whumphs and shooting cracks up to 20m wide and 10-20cm deep in steep wind loaded areas. No new natural avalanches have been observed recently.
Confidence
Problems
Wind Slabs
Strong winds continue to form touchy slabs. Small pockets of wind slab have been reactive to skiers. On south aspects, wind slabs overlie a crust. Caution should be used in steep and exposed terrain where a small slab could result in a big fall.
Use caution in lee areas in the alpine. Recent wind loading have created wind slabs.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 8th, 2015 9:00AM
