Bluffs Weather Observations

Submission Info
Friday, March 13, 2020 - 1:00pm
Red Flags: 
Recent avalanche activity
Bluffs 37° 37' 14.9664" N, 118° 59' 24.1908" W
Snowpit Observations
More detailed information about the snowpack: 

Below 8,500' the snowpack is thin too non-existant, with zero snow in many places and no more than ~80cm's in most other locations that I observed.  At 1430 on a NW aspect at 8,100', Tsurf was -5C, pen boot ws 3cm's and pen ski was 1cm.  Near and above Mammoth Rock and up in Mammoth Rock Bowl we saw evidence of recent loose wet activity (pictured).

Snowpack photos: 
Changing Weather
Ham Thermometer
Loose wet
Any other comments about the observation or links to outside pages that have more info on the observation: 

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Weather Observations
Blowing Snow: 
Cloud Cover: 
50% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

It seems like today may be the day that we are seeing the transition back to unsettled weather.  For a while in the AM, skies were totally clear, but by 1230 I saw a few clouds starting to build in the SW over the Mammoth Crest.  By 1430 the skies were broken and would remain that way for the remainder of our tour.  At 1230 the temp was above freezing with moderate SW winds and strong gusts.  By 1430, the air temp was 1.5C and winds were consistantly strong from the SW with S-1 snowfall that was graupel at times.  Snow was off and on throughout the rest of our day out, but never more than S-1 in intensity, and often graupel.  Winds remained out of the SW, but increased to strong with extreme gusts by 1515 in the afternoon.  There was never any blowing snow observed in any of our locations, but at ~1500 I did observe snow blowing off of the top of the Sherwins with moderate intensity.  When it was clear in the AM at the Mammoth Rock TH, we were able to use a ham thermometer left on a stump by someone to monitor warming temps as the fresh ham turned to jerky over the course of a few hours (pictured).  

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