MESOSCALE DISCUSSION 1598
   NWS STORM PREDICTION CENTER NORMAN OK
   0234 PM CDT FRI JUL 27 2007
   
   AREAS AFFECTED...SERN MO...SRN IL...FAR WRN KY AND NWRN TN
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 271934Z - 272030Z
   
   STORMS ARE LIKELY TO INCREASE IN COVERAGE AND INTENSITY WITH A
   THREAT OF A FEW STRONG WIND GUSTS.
   
   SURFACE ANALYSIS SHOWS WIND SHIFT/TROUGH EXTENDING WWD ACROSS CNTRL
   MO WITH ANOTHER WEAKER TROUGH EXTENDING SWD FROM THE ST. LOUIS AREA
   SWD INTO NERN AR. TCU WERE DEVELOPING WITHIN BOTH OF THESE AREAS AS
   OF 19Z...WHERE HEATING PERSISTS.
   
   A MODERATELY UNSTABLE AIR MASS HAS DEVELOPED WITH MLCAPE GENERALLY
   FROM 1000-2000 J/KG. OBJECTIVE ANALYSIS AS WELL AS VEERING WINDS ON
   PROFILERS INDICATE WARMING ALOFT AS UPPER VORTICITY MAX SHIFTS SEWD
   INTO INDIANA INTO KENTUCKY.  GIVEN DEPARTING UPPER SYSTEM AND WEAK
   MID/UPPER LEVEL LAPSE RATES...LARGE HAIL IS UNLIKELY BUT A FEW WET
   MICROBURSTS MAY OCCUR. THE MOST LIKELY AREA FOR DEVELOPMENT WILL BE
   WITH THE STRONGER CONVERGENCE WITHIN NRN SURFACE TROUGH...FROM SRN
   IL WWD ACROSS CNTRL MO.
   
   ..JEWELL.. 07/27/2007
   
   
   ATTN...WFO...PAH...MEG...LSX...SGF...EAX...
   
   35988971 36579103 36729125 37029130 37709139 38209157
   38489228 38749377 38999413 39369408 39379330 39119152
   38889049 38458777 37998777 36848822 36378828 36058900