MESOSCALE DISCUSSION 0371
   NWS STORM PREDICTION CENTER NORMAN OK
   0338 PM CDT TUE APR 02 2013
   
   AREAS AFFECTED...MIDDLE TX COASTAL PLAIN
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 022038Z - 022145Z
   
   PROBABILITY OF WATCH ISSUANCE...60 PERCENT
   
   SUMMARY...STORM COVERAGE IS INCREASING WITHIN A WARM ADVECTION
   REGIME ACROSS THE MIDDLE TX COASTAL PLAIN. AN ACCOMPANYING THREAT OF
   HAIL...DMGG WIND GUSTS...AND POSSIBLY A TORNADO OR TWO COULD
   EXIST...AND MAY REQUIRE ISSUANCE OF A WW.
   
   DISCUSSION...RADAR REFLECTIVITY MOSAIC SHOWS INCREASING COVERAGE OF
   PRIMARILY ELEVATED STORMS APPROXIMATELY 30 W HOU WITHIN A WAA
   REGIME. ADDITIONAL STORMS OCCURRING JUST E OF THE I-35 CORRIDOR
   APPEAR TO BE ROOTED NEAR THE SFC....WITH ONE SUCH STORM ENTERING
   FAYETTE COUNTY TAKING A MORE EWD TURN WITHIN THE PAST HALF HR. PW
   VALUES NEAR 1.5 INCH COUPLED WITH MODERATELY STRONG MIDLEVEL FLOW
   WILL SUPPORT SOME ORGANIZATION WITH THE STRONGEST CORES...SUPPORTIVE
   OF A THREAT FOR LARGE HAIL. ADDITIONALLY...A THREAT FOR DMGG WINDS
   AND PERHAPS A TORNADO MAY EXIST WITH ANY SFC-BASED STORMS...GIVEN
   NEARLY ELY SFC WINDS ENHANCING LOW-LEVEL HELICITY. GIVEN THESE
   CONDITIONS...A WW MAY BE REQUIRED SHOULD CONVECTIVE TRENDS CONTINUE
   TO INCREASE.
   
   ..ROGERS/CORFIDI.. 04/02/2013
   
   
   ATTN...WFO...HGX...EWX...
   
   LAT...LON   28879562 28749632 29489662 30199668 30509672 30639646
               30889599 30829560 30469498 29409473 28879562