709 
ACUS11 KWNS 061437
SWOMCD
SPC MCD 061437 
INZ000-ILZ000-061630-

MESOSCALE DISCUSSION 0785
NWS STORM PREDICTION CENTER NORMAN OK
0937 AM CDT TUE MAY 06 2003

AREAS AFFECTED...SRN IL/SRN IN

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 061437Z - 061630Z

ELEVATED CONVECTION WILL CONTINUE TO MOVE EWD ACROSS SRN IL OVER THE
NEXT FEW HOURS. CELLS WILL HAVE THE POTENTIAL FOR ISOLATED HAIL. WW
IS POSSIBLE ACROSS SRN IL/SRN IND LATER THIS MORNING.

CONVECTION WAS DEVELOPING AHEAD OF A DISTURBANCE EVIDENT ON WV
IMAGERY OVER ERN MO. A MARGINALLY UNSTABLE AIR MASS WAS PRESENT OVER
SRN IL WITH MLCAPE VALUES AROUND 500 J/KG. STORMS WILL REMAIN
ELEVATED WITH MOST OF THE INSTABILITY ABOVE 700 MB. 0-6 KM SHEAR
VALUES AROUND 60 KT WERE FAVORABLE FOR STORM ORGANIZATION WITH A FEW
ELEVATED SUPERCELLS POSSIBLE. LARGE HAIL WILL BE THE PRIMARY THREAT
WITH THE STORMS. WW WILL BE POSSIBLE ACROSS THE REGION LATER THIS
MORNING.    

..BROYLES.. 05/06/2003

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

ATTN...WFO...LMK...IND...PAH...ILX...LSX...

38228979 38728980 39088923 39438790 39468716 39278669
38668647 38398679 38118763 37828900 37968951