MESOSCALE DISCUSSION 0818
   NWS STORM PREDICTION CENTER NORMAN OK
   0630 PM CDT WED MAY 13 2009
   
   AREAS AFFECTED...W-CNTRL MO/SERN KS/NRN OK
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 295...296...
   
   VALID 132330Z - 140100Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   295...296...CONTINUES.
   
   RECENT RADAR IMAGERY INDICATES BROKEN LINES OF TSTMS WITH EMBEDDED
   SUPERCELL STRUCTURES IN WW/S 295/296...EXTENDING ALONG A COLD FRONT
   FROM SERN PORTIONS OF THE KANSAS CITY METRO AREA TO N-CNTRL OK.
   LARGE HAIL AND PERHAPS A BRIEF TORNADO WILL BE THE PRIMARY THREATS
   OVER THE NEXT COUPLE OF HOURS. UPSCALE GROWTH SHOULD CONTINUE GIVEN
   MID/UPPER-LEVEL FLOW ROUGHLY PARALLEL TO FRONTAL BOUNDARY /PER AREA
   PROFILERS/. WITH WARM SECTOR AIR MASS CHARACTERIZED BY MLCAPES OF
   2500 TO 4000 J/KG...ROBUST COLD POOL DEVELOPMENT APPEARS PROBABLE
   AND SHOULD RESULT IN ELONGATED QLCS FORMING BY AROUND 01Z. DAMAGING
   WIND POTENTIAL WILL CORRESPONDINGLY INCREASE AND SHOULD BECOME THE
   DOMINANT THREAT INTO MID-EVENING.
   
   ..GRAMS.. 05/13/2009
   
   
   ATTN...WFO...LSX...SGF...EAX...TSA...TOP...ICT...OUN...
   
   LAT...LON   39509328 39399229 38719241 37419440 36199631 35279764
               35119870 35569932 37009730 38149561 39209424 39509328