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Mesoscale Discussion 580
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   MESOSCALE DISCUSSION 0580
   NWS STORM PREDICTION CENTER NORMAN OK
   0420 AM CDT SUN MAY 10 2015

   AREAS AFFECTED...N-CNTRL TX / S-CNTRL OK

   CONCERNING...SEVERE THUNDERSTORM WATCH 153...

   VALID 100920Z - 101015Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 153
   CONTINUES.

   SUMMARY...ADDITIONAL STORM DEVELOPMENT AND INTENSIFICATION IS
   PROBABLE AS STORMS MOVE DOWNSTREAM INTO A MOIST/UNSTABLE AXIS
   LOCATED ACROSS N-CNTRL TX INTO S-CNTRL AND SWRN OK.

   DISCUSSION...RADAR MOSAIC AND 09Z SUBJECTIVE SURFACE MESOANALYSIS
   SHOWS A BOWING SEGMENT MOVING ENEWD ACROSS THE TX BIG COUNTRY AROUND
   45 KT AND INTO A MOIST/UNSTABLE AXIS.  AN EARLIER OUTFLOW BOUNDARY
   LOCATED ACROSS N-CNTRL TX APPEARS MORE DIFFUSE WITH TIME AND AN
   INFLUX OF MORE MOIST AIR CHARACTERIZED BY AN AXIS OF UPPER 60S
   DEWPOINTS EXTENDS FROM E-CNTRL TX NWWD THROUGH THE METROPLEX AND
   INTO SWRN AND INTO S-CNTRL OK.  RECENT ADDITIONAL STORM DEVELOPMENT
   HAS OCCURRED ACROSS WRN N-CNTRL TX AND BOTH STORM CLUSTERS WILL MOVE
   DOWNSTREAM.  THE SCTD DEVELOPMENT SW OF SPS IS CAPABLE OF AN ISOLD
   LARGE-HAIL THREAT IN ADDITION TO A STRONG WIND GUST.  THE PRIMARY
   THREAT WITH THE BOW WILL BE POCKETS OF SEVERE WIND GUSTS 60-70 MPH
   BUT SMALL HAIL COULD ACCOMPANY THE MORE INTENSE
   UPDRAFTS...ESPECIALLY ON THE SRN FLANK OF THE BOW.

   ..SMITH.. 05/10/2015


   ATTN...WFO...TSA...FWD...OUN...SJT...

   LAT...LON   33439977 34459895 34959689 34449564 33429541 32629613
               32119718 31539908 33439977 

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Page last modified: May 10, 2015
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