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Mesoscale Discussion 504
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   MESOSCALE DISCUSSION 0504
   NWS STORM PREDICTION CENTER NORMAN OK
   0558 PM CDT MON MAY 04 2015

   AREAS AFFECTED...FAR W TX INTO THE TRANSPECOS REGION AND BIG BEND
   AREA

   CONCERNING...TORNADO WATCH 129...

   VALID 042258Z - 050100Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 129 CONTINUES.

   SUMMARY...SUPERCELLS CAPABLE OF PRODUCING LARGE HAIL/LOCALLY
   DAMAGING WINDS AND POSSIBLY A TORNADO OR TWO WILL CONTINUE ACROSS
   THE REGION.

   DISCUSSION...LATEST RADAR LOOP SHOWS SEVERE STORMS ACROSS MAINLY THE
   NRN HALF OF THE WW...THOUGH SOME INCREASE IN CU/CB IS ALSO EVIDENT
   NEAR THE BIG BEND.  THE STRONGEST CELLS -- A FEW OF WHICH CONTINUE
   TO EXHIBIT ROTATION -- ARE CROSSING THE CULBERSON/REEVES CO
   VICINITY...WITHIN THIS WW AND ADJACENT SEVERE THUNDERSTORM WATCH
   128.  EXPECT RISK TO CONTINUE FOR SEVERAL HOURS...AS SELY LOW-LEVEL
   WINDS CONTINUE TO ADVECT RICHER MOISTURE NWWD INTO THIS REGION
   BENEATH MODERATE MID-LEVEL WLYS.  WE WILL ALSO MONITOR AREAS JUST E
   OF THE SERN CORNER OF THE WATCH...AS STORMS INCREASING WITHIN THE
   WARM/MOIST/MODERATELY UNSTABLE ENVIRONMENT INVOF THE BIG BEND COULD
   CONSOLIDATE AND SHIFT EWD TOWARD CROCKETT/VAL VERDE COUNTIES -- BOTH
   OF WHICH ARE NOT CURRENTLY INCLUDED IN THE WATCH.

   ..GOSS/EDWARDS.. 05/04/2015


   ATTN...WFO...EWX...SJT...MAF...

   LAT...LON   29070359 30540374 32010428 32010246 30700175 29280055
               29720160 29680268 28940310 29070359 

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