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Mesoscale Discussion 1455
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   MESOSCALE DISCUSSION 1455
   NWS STORM PREDICTION CENTER NORMAN OK
   0517 PM CDT THU JUN 30 2011
   
   AREAS AFFECTED...CO/ERN WY/SWRN SD/WRN NEB AND THE NEB PANHANDLE
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 577...
   
   VALID 302217Z - 010015Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 577
   CONTINUES.
   
   LOCALLY STRONG/SEVERE STORMS CONTINUE IN AND NEAR WW 577...WITH NEW
   WATCH BEING CONSIDERED DOWNSTREAM INTO WRN PORTIONS OF NEB AND SWRN
   SD TO COVER DAMAGING WIND POTENTIAL.
   
   LATEST RADAR IMAGERY SHOWS SCATTERED STRONG/SEVERE STORMS ACROSS
   PORTIONS OF CO AND WY...PARTICULARLY WITHIN WW 577.  TWO STORM
   CLUSTERS -- ONE MOVING INTO EXTREME SWRN SD AND ANOTHER CROSSING
   NERN CO AND MOVING TOWARD THE NEB PANHANDLE -- ARE ABOUT TO VACATE
   THE WATCH...AND SHIFT INTO AN ENVIRONMENT FEATURING A
   DEEP/WELL-MIXED BOUNDARY LAYER BENEATH A HIGHER LAYER OF AMPLE CAPE.
    GIVEN THIS -- AS WELL AS AMPLE SHEAR AND INCREASING LARGE SCALE
   ASCENT BEING PROVIDED BY THE ENEWD-MOVING MID-LEVEL LOW NOW CROSSING
   ERN UT INTO WRN CO...EXPECT STORMS TO PERSIST -- ALONG WITH
   POTENTIAL FOR DAMAGING WINDS AND POSSIBLY HAIL OVER THE NEXT SEVERAL
   HOURS.
   
   ..GOSS.. 06/30/2011
   
   
   ATTN...WFO...ABR...GID...LBF...UNR...GLD...PUB...BOU...CYS...
   RIW...GJT...
   
   LAT...LON   38370752 41710764 43180299 44060084 43020008 40760013
               38170519 38370752 
   
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Page last modified: July 01, 2011
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