Avalanche Forecast
Issued: Nov 12th, 2019 8:00AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
chris gooliaff,
Parks Canada
Early season conditions are the theme with rocks, stumps, and open creeks ready to pummel the unsuspecting traveler. Ride lightly and do a few speed-checks until things fatten up!
Summary
Weather Forecast
Light to moderate amounts of snow are forecast through the next week, with freezing levels hovering around 1200-1800m. Winds should be moderate from the usual SW direction. Expect rugged conditions below 1800m to continue until freezing levels remain at valley bottom with each incoming storm. Check the Mountain Weather Forecast for updates.
Snowpack Summary
The snowpack is slowly building at treeline and above, but diminishes rapidly as you lose elevation, with only 30cm at Rogers Pass (the highest point you can start your tour). 90-120cm of snow can be found at treeline but expect more in alpine lees. Moderate sudden planar test results observed on a crust sitting 30-50cm below the snow surface.
Avalanche Summary
Several loose and thin slab avalanches up to size 2 were observed from solar aspects last week. Previous to that, loose snow avalanches from Macdonald's N face ran more than 100m over bare ground, demonstrating that the valley bottoms are susceptible to overhead hazard even if they are not snowbound.
Confidence
Problems
Wind Slabs
Naturally triggered avalanches up to size two have been observed from alpine start zones over the past week.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Early season hazards such as rocks, trees and stumps are still visible.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 13th, 2019 8:00AM
