Sunday, March 18, 2012

First Band Of Showers Into Tucson


Showers are moving across Tucson area (above view to north of campus at 7:38 am MST), and Kitt peak image around 7 am (below) shows that snow level has dropped below 7,000 ft MSL.



The NAM 500 mb analysis for 12 UTC 18 March, 2012, is shown above. Main vorticity maxima at this time is near San Diego, where 500 mb temperature is -31C. Regional radar from NCAR is below for a bit after 7 am. So event has begun - strong winds, rain, and plunging temps outside now. The temperature here at the house was 56F at 6:30 am and I reset the minimum so I can see what the first shower band does wrt temp.


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