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Mesoscale Discussion 864
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   MESOSCALE DISCUSSION 0864
   NWS STORM PREDICTION CENTER NORMAN OK
   0332 PM CDT FRI JUN 06 2014

   AREAS AFFECTED...ERN CO...WRN NEB...SCNTRL SD

   CONCERNING...SEVERE THUNDERSTORM WATCH 241...242...

   VALID 062032Z - 062130Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   241...242...CONTINUES.

   SUMMARY...HAIL WILL CONTINUE TO BE THE PRIMARY SEVERE THREAT WITH
   EXPANDING THUNDERSTORM CLUSTERS OVER THE CNTRL HIGH PLAINS.

   DISCUSSION...SIGNIFICANT AMOUNT OF BUOYANCY RESIDES ACROSS THE
   PLAINS OF ERN CO INTO PORTIONS OF WRN NEBRASKA WHERE MLCAPE IS
   APPROACHING 2000 J/KG.  CONVECTION THAT EVOLVED ALONG LOW-LEVEL
   CONFLUENCE ZONE OVER WRN NEB IS GRADUALLY REORGANIZING SWD TOWARD
   THE COLORADO BORDER AS PRESSURES BEGIN TO RISE ACROSS SERN WY/NEB
   PANHANDLE.

   THUNDERSTORMS ARE EXPECTED TO CONTINUE INTENSIFYING AS THEY PROGRESS
   OFF THE HIGHER TERRAIN...AIDED IN PART BY TRANSITORY SHORT-WAVE
   THROUGH THAT IS MOVING ACROSS CNTRL CO.  WHILE TEMPERATURE/DEW POINT
   SPREADS ARE A BIT LARGE...ROUGHLY 30F...A FEW SUPERCELL STRUCTURES
   HAVE APPARENTLY PRODUCED ISOLATED TORNADOES IN ADDITION TO LARGE
   HAIL.  LARGE HAIL SHOULD CONTINUE TO BE THE MAIN THREAT AS
   CONVECTION EXPANDS IN AREAL COVERAGE ACROSS THE HIGH PLAINS.

   ..DARROW.. 06/06/2014


   ATTN...WFO...FSD...ABR...LBF...UNR...GLD...PUB...BOU...CYS...

   LAT...LON   40900496 40910380 43640184 43649924 40940128 40910227
               37010230 37010485 40900496 

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Page last modified: June 06, 2014
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