Old Mans Bowl

SNOWPACK OBSERVATION
Old Mans Bowl
Submission Info
Forecaster
Friday, January 6, 2017 - 12:00pm
37° 34' 8.4144" N, 118° 51' 7.1496" W
Snowpit Observations
More detailed information about the snowpack: 

-Route:  Convict Lake, up moraine, around below NE face of Little Morrison, up Old Mans Bowl, back out same way.

-Finally enough snow to navigate the bushy moraine above convict lake!  Dense mostly supportive snow made for fairly easy travel around and over bushes.  (7,600' - 8,200')

-Tons of loud woomphing and shooting cracks going up lower bushy moraine.  ...would be very concerning if it weren't so bushy for two reasons: 1) The woophing was due heavily to the bushes collapsing in combination with the lower density snow underneath the dense upper snow, and 2) Due to the heavy bush cover and low amount of snow, the bushes are anchoring the slope.   Of note, no woophing was noticed anywhere else above today.

-Most all terrain above the moraine was heavily wind affected ... mostly firm windboard, with some patches of softer snow, and some breakable.

-Some tiny small surface (1-2") slabs released near top of moraine (2-4' wide).

-Many handpits showed 3-9" dense windslabs failing cleanly with light force.

-2 pits dug, see attached profiles.   Upper Pit near 10,500' -> ECT tests consistently failed and propagated upon isolation in basal facets.  Upper layers when column was not dug down to basal facet layer showed multiple failures in new snow/wind deposit density changes, but none propagated.  Lower Pit near 9,700' -> ECTP30 in facet layer just below upper windcrust(which was old snow surface before this week's storm).  

-SE facing slope at 10,000' showed very slight amount of surface melt, barely discerneable.  

-Evidence of natural slide on North aspect of Bowl in steep terrain.  Not much evidence of natural slides in area.

-Moderate shifty winds mostly out of the south, but also eastish, resulted in some snowtransport over ridgetops today.

 

Snowpit or crown profile photo or graph: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Wind Direction: 
South
More detailed information about the weather: 

Mostly sunny day, with scattered clouds.  Light winds at low to mid elevations, some moderate to strong gusts with visible snow transport over sourounding ridgetops.  -2.5deg C at 10,500' at noon.  

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