063 ACUS11 KWNS 230112 SWOMCD SPC MCD 230111 MOZ000-ILZ000-230300- SPC MESOSCALE DISCUSSION 1435 FOR ERN MO...SWRN IL CONCERNING...SEVERE THUNDERSTORM POTENTIAL... RATHER CONTINUOUS LINE OF CONVECTION CONTINUES JUST AHEAD OF MAIN COLD FRONTAL BOUNDARY FROM SSW OF SAINT LOUIS NEWD INTO CNTRL IL. A WW ISSUANCE IS UNLIKELY. RADAR/SATELLITE IMAGERY INDICATES STORM ACTIVITY HAS INCREASED ACROSS ERN MO/SWRN IL. IR IMAGERY REVEALS COOLING CLOUD TOPS ESPECIALLY ACROSS AREAS ENE OF THE SAINT LOUIS METRO AREA INTO CNTRL IL. TEMPERATURES AHEAD OF BOUNDARY REMAIN FROM THE UPPER 80S INTO THE LOW 90S WITH DEWPOINTS IN THE LOW-MID 70S...LEADING TO 100MB MLCAPES AROUND 2500 J/KG. SAINT LOUIS VAD PROFILE SHOWS BACKED WINDS WITH WEAK DEEP LAYER SHEAR AS LINE OF STORMS HAS MOVED THRU METRO AREA. EXPECT MAINLY OUTFLOW DRIVEN/ISOLATED SEVERE ACTIVITY TO CONTINUE EWD AND NEWD INTO SCNTRL/CNTRL IL WITH SOME LARGE HAIL...STRONG GUSTY WINDS...AND AREAS OF HEAVY RAINFALL POSSIBLE. ..NADEN.. 07/23/02 PLEASE SEE WWW.SPC.NOAA.GOV/ FOR GRAPHIC PRODUCT...