Lakes Basin - below Hammil Bowl

Mammoth Lakes Basin - Below Hammil Bowl
Submission Info
Friday, January 15, 2016 - 12:00pm
Red Flags: 
37° 35' 13.6752" N, 118° 59' 46.7088" W
Snowpit Observations
More detailed information about the snowpack: 

-About 1ft of new snow appeared to have fallen last night in the Lakes Basin, with considerable variation due to wind transport form moderate to high SW winds at all elevations.  

-Many crowns visible from very recent natural avalanches.  See avalache observations --> Mammoth Area 

-Lots of visible snow transport at upper elevations (>10,000') during periods of strong winds today.  

-​​Shooting cracks and some slope settlement noted at mid elevations below tree line.  Small 10-12" soft slabs brokefree when unsupported below near kickturns on steeper terrain during skinning.  

  • -One pit dug on ESE aspect, 25deg slope, ~9600' elev.  Below tree line below Hammil Bowl area.    
    • Total snow depth: 114cm.  
    • Air temp: 1.5 C, Surface temp: -0.2 C, temp 20cm down: -3.8 C
    • New snow deposited = 28cm.  Stability tests consistently failed just under melt/freeze crust that formed yesterday before 28cm of new snow was depositited last night.  CT3 28cm down Q2.  CT2 28cm down Q2, ECTN12 28cm down.  ECTX.  
    • No test failures below this layer, including no failures at rounding facets near the ground.   
Weather Observations
Blowing Snow: 
Cloud Cover: 
25% 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: 

Periods of high winds at upper elevations today.  Mostly clear skies.

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