633 
ACUS11 KWNS 100141
SWOMCD
SPC MCD 100140 
OHZ000-INZ000-ILZ000-100345-

MESOSCALE DISCUSSION 0892
NWS STORM PREDICTION CENTER NORMAN OK
0840 PM CDT FRI MAY 09 2003

AREAS AFFECTED...CENTRAL IL/CENTRAL-NRN IND

CONCERNING...TORNADO WATCH 324...

VALID 100140Z - 100345Z

THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE NEXT SEVERAL HOURS
OVER CENTRAL IL INTO NRN IND...WITH ISOLATED TORNADOES...LARGE HAIL
AND DAMAGING WINDS LIKELY.

SURFACE MESOANALYSES SHOW THE WARM FRONT LIFTING NWD AND EXTENDS
FROM JUST SOUTH OF MKC ENEWD TO UIN AND THEN INTO NRN IND...WITH
NUMEROUS SEVERE STORMS DETECTED ALONG THE EXTENT OF THIS BOUNDARY.  
 THE AIR MASS REMAINS VERY UNSTABLE ALONG AND SOUTH OF THE WARM
FRONT...WITH DEEP LAYER SHEAR SUPPORTING SUPERCELLS.  LARGE HAIL/
DAMAGING WINDS WILL BE LIKELY...AND STORMS THAT DEVIATE FROM THE
MEAN FLOW WILL HAVE A GREATER TORNADO POTENTIAL. 

..PETERS.. 05/10/2003

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ILN...IWX...IND...LOT...ILX...LSX...

38438966 39888968 40538935 41328678 41748483 40258479