Anthracite Mesa-Coneys

CB Avalanche Center 2020-21 Observations

Date of Observation: 02/21/2021
Name: Andrew Breibart


Zone: Southeast Mountains
Location: Washington Gulch-Coneys
Aspect: North East, East
Elevation: BTL


Avalanches: From Coney’s ridge line observed an avalanche on Schuylkill. Appears to be a a wind slab with a D2 on damage scale. NTL on East aspect. photo attached and didn’t see it any photos from 2/13-2/15. Maybe this occurred between 2/19-2/21.   CBAC note: this slide was first observed 2/15, but documented from a poor vantage point.
Weather: Moderate winds with strong gusts. Lots of blowing snow especially in the valley bottom. See dune photo. Negligible snow was being transported along the ridge line.
Snowpack: Measured snowpack in an open area below the trees down gradient of first bowl: snow depth ranged between 140 and 155 cm.
Ridge top: ski pen- 4 inches and boot pen was 9 inches. HS ranged between 135 and 150 cm.
new snow was around 2 inches.
leeward side of ridge line had new snow between 4 to 6 inches.