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Mesoscale Discussion 777
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   MESOSCALE DISCUSSION 0777
   NWS STORM PREDICTION CENTER NORMAN OK
   0234 PM CDT SUN JUN 01 2014

   AREAS AFFECTED...SERN SD...SWRN MN...NERN NEB...NWRN IA

   CONCERNING...SEVERE THUNDERSTORM WATCH 201...

   VALID 011934Z - 012100Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 201
   CONTINUES.

   SUMMARY...AN ISOLATED SEVERE WIND/HAIL RISK MAY EXTEND N OF WW 201
   ACROSS PORTIONS OF SERN SD/SWRN MN.

   DISCUSSION...19Z SURFACE ANALYSIS INDICATES ROBUST PRESSURE RISES AT
   KONL/KODX BEHIND A SSW/NNE-ORIENTED CONVECTIVE LINE FROM PIERCE
   COUNTY NEB TO TURNER COUNTY SD. A POCKET OF GREATER SURFACE HEATING
   IS EVIDENT TO THE N OF THIS LINE...AWAY FROM THE CLOUD SHIELD
   ASSOCIATED WITH THE WSW/ENE-ORIENTED CONVECTIVE LINE FROM NWRN IA TO
   SERN MN. ALTHOUGH 0-3 KM WINDS ARE WEAK IN FSD VWP DATA...THE
   ORIENTATION OF THE LINE WITH RESPECT TO STRONGER MID-LEVEL SWLYS
   MIGHT SUPPORT A SEMI-ORGANIZED SEGMENT EVOLVING NEWD ACROSS THE
   BUFFALO RIDGE.

   ..GRAMS.. 06/01/2014


   ATTN...WFO...MPX...DMX...FSD...OAX...

   LAT...LON   44429422 42939502 42559539 42269593 42059683 42099762
               42829768 43439730 43989694 44529638 44869576 44949487
               44809447 44429422 

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Page last modified: June 01, 2014
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