Trigger | Natural | Remote Trigger | No |
Avalanche Type | Hard Slab | Aspect | North Northeast |
Elevation | 3300ft | Slope Angle | 40deg |
Crown Depth | unknown | Width | 400ft |
Vertical Run | 1500ft |
Drove up Hiland Road to look for new natural avalanches in better light. We did see two other significant natural avalanches (in addition to the avalanche that hit the road yesterday)- one in between the Solstice Gully and Swiss Bowl on the west side of the valley and one avalanche on 3 Bowls.
Trigger | Natural | Remote Trigger | No |
Avalanche Type | Hard Slab | Aspect | North Northeast |
Elevation | 3300ft | Slope Angle | 40deg |
Crown Depth | unknown | Width | 400ft |
Vertical Run | 1500ft |
This describes the avalanche that occurred on the west side of the valley, between Solstice Gully and Swiss Bowl
We also saw a naturally triggered avalanche in Three Bowls. The three bowls avalanche was on a W aspect. The wind had blown in the crown, but from the photo and the slide path, we thought the start zone occurred at around ~3,200' and also looked like a hard slab debris pile. The width of that avalanche looked like it was 200' and the vertical run was ~800'
Recent Avalanches? | Yes |
Collapsing (Whumphing)? | No |
Cracking (Shooting cracks)? | No |
The winds were ripping (~20-50mph winds at ridgetops) predominately from the SE. Flagging and transport were visible from most ridge tops.
We were able to see three natural avalanches from the road.
No cars were parked at the South Fork Valley Trailhead or Harp Trailhead when we drove through.
11:00 am- broken skies, strong ridgetop winds, no precip
12: 30 pm-broken skies, strong ridgetop winds, no precip
1:30 pm- overcast skies, strong ridgetop winds, no precip
The snow surface was wind-loaded, and flagging was visible on most peaks in the area
We did not dig a snowpit, we were mostly monitoring the snow's reaction to the high wind warning and photographing the natural avalanches while we had some nice light.