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...