Earthquake Dome

Earthquake Dome
Submission Info
Monday, January 30, 2017 - 2:30pm
Red Flags: 
Rapid warming
Earthquake Dome 37° 40' 2.64" N, 119° 0' 6.12" W
Snowpit Observations
More detailed information about the snowpack: 


Observer: doug lewis, Eastern Sierra Avalanche Center
Date: Jan 30, 2017, 2:30 PM
Loc: Earthquake Dome
Lat/Lon:37.6674, -119.0017
Elevation: 9200 f
Aspect: NNW Angle: 32°
Signs of Instability: Pin Wheels
Sky Cover: -BKN
Precipitation: No Precipitation
Wind Speed: Calm subjective
Current Temp: 5°C Trend:→
Blowing Snow: None
Snow Depth: 335cm
Snow Temperature 20cm:-6.5° C 
Boot Penetration: 35cm

Comments: Warm temperatures penetrating 2-3 cm. 8000' wet, 9000' moist on N-E aspects. Surface Hoar over facets, decreasing in size with elevation, 6 mm at 8000', decreasing to  ~ 3mm @ 9000'. Surface Hoar (Laid over and rounding) and upper facets wet to moist, will likely form a melt/freeze crust once buried. Trees dropping their load forming roller balls on even sheltered slopes and shaded aspects. Stability Tests: CTN - Multiple tests yielded no results.  Lots of skier traffic in the area near skin track. Less as you move toward the east. Parking has been cleared in the traditional locations. 


Snowpit or crown profile photo or graph: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 

Thin clouds driving strong re-rediation. 

-- placeholder --

ESAC receives significant financial support from ...