sensitive windslabs at June Mtn.

NW Ridgeline at top of June Mtn.
Submission Info
Saturday, January 6, 2018 - 5:45pm
Red Flags: 
Recent loading by new snow, wind, or rain
37° 44' 25.8936" N, 119° 4' 31.1412" W
Snowpit Observations
More detailed information about the snowpack: 

Did some ski cuts along the NW ridge near the top of June Mtn. ( above Cathedral/ Sunset area) I got several newly formed windslabs ( F hardness) to propagate and break at a snowdepth varying between 5 cm up to 10 cm. Aspect of the windslabs was NE. Observed snow being transported and deposited right over the breakover. Winds from the SW ranged from low to moderate with occasional higher gusts.  Up to 30 cm of new snow in the Leeward area.

Hand shear test in same location: Windslab ( F hardness) broke at 5 cm, easy force, on 20 cm of new snow ( F hardness). 

Weather Observations
Blowing Snow: 
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

Observed light graupel falling at 1: 45 at the top of June Mountain. Little accumulation which tappered off by 2 pm.

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