Recent Avalanches? | Yes |
Collapsing (Whumphing)? | Yes |
Cracking (Shooting cracks)? | Yes |
Short tour to Marmot Test Slopes for Instability Testing.
Recent Avalanches? | Yes |
Collapsing (Whumphing)? | Yes |
Cracking (Shooting cracks)? | Yes |
Numerous recent, large, natural avalanches on all aspects at mid to upper elevations which failed during or just after the storm. A few crowns observed were approximately 800-1000´wide, measured on google earth. Most were 100-300 feet wide.
Avalanches ranged from D2-3 with the majority in the D2 range, crowns appeared to be 2-3 feet deep. Avalanches wrapped around terrain features. Most failed at the ground.
Numerous large whumphs and shooting cracks up to 50 feet long throughout my tour.
Clear skies for most of the day, increasing clouds in afternoon.
1pm: calm to light breeze, WNW, 22F
Low density, new snow
HST 61cm
HS 75cm
Poor Structure
Moderate Strength
High Propagation Propensity
Martin Mine, large avalanche, destructive debris pile
Martin Mine debris pile
Skyscraper
Eldorado Headwall
Swimming Tim's, crown wraps features, crossed entire face
Rae Wallace, crown wraps features, failed at ground
Nose Hairs, crown runs width of entire face
Delia Creek, crown wraps features
Punk Spines