The Souvenir avalanche mentioned in the obs occurred around 3/12-3/15 and is an old avalanche. See obs from March 15
Human triggered wind slab is a D1.5 and most likely failed on NSF on a crust.
Wind effect on just about all aspects and elevations except possible lower elevation south faces. Air was cool enough to prevent significant softening of the surface despite bright sunshine all day.
The Souvenir avalanche mentioned in the obs occurred around 3/12-3/15 and is an old avalanche. See obs from March 15
Human triggered wind slab is a D1.5 and most likely failed on NSF on a crust.
Trigger | Skier | Remote Trigger | No |
Avalanche Type | Hard Slab | Aspect | West |
Elevation | 3700ft | Slope Angle | 35deg |
Crown Depth | 15in | Width | 300ft |
Vertical Run | 150ft |
Number Caught/Carried? | 1 | Number Partially Buried? | 0 |
Number Fully Buried? | 0 | Number Injured? | 0 |
Number Fatalities? | 0 |
Wind slab broke on my second turn. Due to convexity of the slope, the blocks luckily separated as they slid and I was at the uphill edge of the debris when it stopped moving. Skis remained on and poles were dropped but retrieved. Had this been above a terrain trap, the results could have been much worse.
Recent Avalanches? | Yes |
Collapsing (Whumphing)? | Yes |
Cracking (Shooting cracks)? | Yes |
Observed old large avalanche from 3/12-3/15 on steep north face of the twin peaks at the head of Lone Tree Gulch. This is visible in the upper right corner of the photo. Some collapsing and shooting cracks in the various sections of wind-board.