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Mesoscale Discussion 520
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   MESOSCALE DISCUSSION 0520
   NWS STORM PREDICTION CENTER NORMAN OK
   0754 PM CDT TUE MAY 11 2010
   
   AREAS AFFECTED...NWRN OK...SRN KS
   
   CONCERNING...TORNADO WATCH 151...
   
   VALID 120054Z - 120200Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 151 CONTINUES.
   
   ...NEW WW WILL BE WARRANTED ACROSS PARTS OF NWRN OK AND ADJACENT
   AREAS OF SRN KS SHORTLY...
   
   NOCTURNAL INFLUENCES MAY BE AIDING RECENT INCREASE IN CONVECTIVE
   ACTIVITY ALONG RETREATING MOISTURE SURGE/WARM FRONT OVER ELLIS/ROGER
   MILLS/DEWEY COUNTIES.  LLJ SHOULD CONTINUE TO STRENGTHEN INTO THIS
   REGION OVER THE NEXT FEW HOURS SUGGESTING UPDRAFTS MAY BECOME MORE
   SUSTAINED AND ORGANIZED...PRIMARILY DUE TO LOW LEVEL WARM ADVECTION
   ATOP RECOVERING AIRMASS.  IT/S NOT ENTIRELY CLEAR HOW MUCH ACTIVITY
   WILL EVOLVE ACROSS THIS REGION BUT SHEAR PROFILES DO FAVOR
   SUPERCELLS AND A NEW WW WILL LIKELY BE ISSUED SOON TO ACCOUNT FOR
   THESE TRENDS.
   
   ..DARROW.. 05/12/2010
   
   
   ATTN...WFO...ICT...OUN...DDC...AMA...
   
   LAT...LON   36310010 37779881 37649754 36769738 36209787 35799937
               36310010 
   
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