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Mesoscale Discussion 1449
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   MESOSCALE DISCUSSION 1449
   NWS STORM PREDICTION CENTER NORMAN OK
   0606 PM CDT WED JUL 23 2014

   AREAS AFFECTED...NERN TX...SRN AR AND NRN LA

   CONCERNING...SEVERE THUNDERSTORM WATCH 431...434...

   VALID 232306Z - 240030Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   431...434...CONTINUES.

   SUMMARY...STORMS WILL CONTINUE TO POSE A THREAT FOR STRONG TO
   DAMAGING WIND GUSTS UNTIL MID EVENING FROM NERN TX THROUGH SRN AR
   AND NRN LA. A NEW WW WILL LIKELY BE REQUIRED SOUTH OF WW 434 TO
   INCLUDE NERN TX AND NWRN LA.

   DISCUSSION...A LARGE MCS WITH EXPANSIVE TRAILING COLD POOL AND
   STRATIFORM REGION EXTENDS FROM E-CNTRL AR SWWD THROUGH EXTREME NERN
   TX INTO EXTREME SERN OK MOVING SOUTH AT 30-35 KT. THE LATEST
   OBJECTIVE ANALYSIS INDICATES THE STORMS ARE CURRENTLY MOVING THROUGH
   AXIS OF MAXIMUM CAPE. HOWEVER...DOWNSTREAM WARM SECTOR REMAINS
   MODERATELY UNSTABLE WITH TEMPERATURES AROUND 90F AND 70F DEWPOINTS.
   GIVEN THE MOIST SFC LAYER...WEAK CAP AND STRONG CONVERGENCE ALONG
   THE GUST FRONT...STORMS SHOULD CONTINUE DEVELOPING SWD NEXT 3-4
   HOURS BEFORE THE STABILIZING BOUNDARY LAYER CONTRIBUTES TO THE
   ULTIMATE DEMISE OF THE MCS LATER THIS EVENING.

   ..DIAL/EDWARDS.. 07/23/2014


   ATTN...WFO...JAN...LZK...SHV...FWD...OUN...

   LAT...LON   33839600 33189427 33799253 34309161 33409152 32299316
               31939489 32699621 33719654 33839600 

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Page last modified: July 24, 2014
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