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Mesoscale Discussion 637
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   MESOSCALE DISCUSSION 0637
   NWS STORM PREDICTION CENTER NORMAN OK
   1153 PM CDT MON MAY 16 2016

   AREAS AFFECTED...CNTRL AND S-CNTRL OK

   CONCERNING...SEVERE THUNDERSTORM WATCH 178...

   VALID 170453Z - 170600Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 178
   CONTINUES.

   SUMMARY...THE THREAT FOR SEVERE WIND GUSTS MAY EXTEND EAST OF THE
   EXISTING SEVERE THUNDERSTORM WATCH AND INCLUDE THE I-35 CORRIDOR IN
   CENTRAL OK.  A WATCH EXTENSION-IN-AREA MAY BE NEEDED BASED ON
   OBSERVED TRENDS OVER THE NEXT HOUR OR SO.

   DISCUSSION...RADAR MOSAIC SHOWS A SEVERE QLCS ACROSS W-CNTRL OK
   MOVING EWD AT 35 KT.  THE AIRMASS DOWNSTREAM OF THIS CONVECTIVE
   SYSTEM HAS COOLED WITH TEMPS IN THE MID-UPPER 60S AND DEWPOINTS IN
   THE LOWER 60S---RESULTING IN INCREASED MLCINH.  YET...SEVERAL SEVERE
   GUSTS HAVE BEEN MEASURED IN THE LAST 30 MINUTES OVER W-CNTRL OK. 
   BASED ON OBSERVATIONS WITH THE OK MESONET OVER THE NEXT 30-60
   MINUTES...A WATCH EXTENSION-IN-AREA MAY BE NEEDED TO ADDRESS THE ERN
   BOUND OF THE RISK FOR SEVERE GUSTS OVER PORTIONS OF CNTRL AND
   S-CNTRL OK.

   ..SMITH.. 05/17/2016


   ATTN...WFO...OUN...

   LAT...LON   35019881 35949829 35959762 35619706 35299697 34829706
               34529727 34449774 35019881 

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Page last modified: May 17, 2016
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