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Mesoscale Discussion 1238
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   MESOSCALE DISCUSSION 1238
   NWS STORM PREDICTION CENTER NORMAN OK
   1224 AM CDT TUE JUL 01 2014

   AREAS AFFECTED...NE INDIANA...NW OH...SE LOWER MI

   CONCERNING...SEVERE THUNDERSTORM WATCH 381...

   VALID 010524Z - 010630Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 381
   CONTINUES.

   SUMMARY...A WIND DAMAGE THREAT WILL CONTINUE INTO THE OVERNIGHT
   PERIOD ACROSS NE IND...NW OH AND SE LOWER MI. WW ISSUANCE WILL BE
   NEEDED SHORTLY TO THE EAST OF WW 381.

   DISCUSSION...A WELL-DEVELOPED BOWING LINE SEGMENT MOVING QUICKLY TO
   THE EAST AT 40 TO 45 KT WILL CONTINUE TO AFFECT AREAS EWD ALONG A
   GRADIENT OF MODERATE INSTABILITY ACROSS NW OH AND SE LOWER MI. SFC
   DEWPOINTS AHEAD OF THE LINE ARE IN THE LOWER 70S F ALONG AND
   SOUTHEAST OF AN OUTFLOW BOUNDARY LOCATED ACROSS WRN LOWER MI THAT IS
   ENHANCING LIFT. IN ADDITION TO THE MOIST BOUNDARY LAYER...THE
   DETROIT WSR-88D VWP SHOWS A UNIDIRECTIONAL WIND PROFILE WITH 0-6 KM
   SHEAR NEAR 50 KT. THIS SHOULD BE SUPPORTIVE A WIND DAMAGE THREAT AS
   THE LINE MOVES TO THE EAST OF WW 381. FOR THIS REASON...A NEW WW
   WILL BE NEEDED SHORTLY AHEAD OF THE BOWING LINE SEGMENT.

   ..BROYLES/EDWARDS.. 07/01/2014


   ATTN...WFO...CLE...ILN...DTX...IWX...GRR...

   LAT...LON   40668270 40338492 40748573 41478573 42528522 42718430
               42758279 41948232 40668270 

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