8 tornado, 4 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before the first event at Jun 11, 2:05 PM CST, 3 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LINCOLN IL 305 PM CDT WED JUN 11 2003 FORECAST CHALLENGE FOCUSES ON PRECIPITATION CHANCES AND AMOUNTS TONIGHT. FLOOD WATCH WILL CONTINUE IN ITS CURRENT FORM. SHORTWAVE ENERGY MOVING NORTHEAST THROUGH SOUTHEAST MISSOURI THIS AFTERNOON WILL BE THE FOCUS FOR HEAVY RAINFALL LATE THIS EVENING AND OVERNIGHT. THIS WAVE IS FORECAST TO MOVE INTO CENTRAL INDIANA THUSDAY MORNING...ALLOWING RAINFALL TO END FROM WEST TO EAST EARLY. UPPER LEVEL DIVERGENCE AND HIGH PRECIPITABLE WATER VALUES (UP TO 2.00) WILL MAXIMIZE ALONG AND SOUTH OF A DANVILLE TO TAYLORVILLE LINE. SOUTHEAST SECTIONS OF CWA ALSO RECEIVED HEAVIER RAINFALL LAST NIGHT. SO...CURRENT WATCH OUTLINE LOOK REASONABLE...ALONG AND SOUTH OF A SHELBY TO EDGAR COUNTY LINE. GFS APPEARS TOO WET WITH QPF OUTPUT DESPITE HIGH PRECIP WATER VALUES...WENT MORE IN LINE WITH THE ETA VALUES. AFTER EARLY MORNING RAINFALL EASTERN SECTIONS...REMAINDER OF THE DAY THURSDAY APPEARS DRY. MODELS IN GOOD AGREEMENT WITH THIS SCENARIO AS SURFACE FRONT GETS PULLED INTO SOUTHERN ILLINOIS BEHIND TONIGHT/S WAVE. NEARLY ZONAL FLOW...HOWEVER...TO KEEP FRONT NEARBY ENOUGH FOR PRECIPITATION TO RETURN TO FORECAST LATE THU NIGHT. AS EXPECTED...MODELS ARE STRUGGLING WITH FORECAST AND ESPECIALLY PRECIPITATION PATTERN WITH ONLY WEAK WAVES IN THE FLOW FOCUSING PRECIPITATION WITH THE FRONT. ALL MODELS DO AGREE THAT BEST CHANCES WILL REMAIN FROM CENTRAL MO TO SOUTHERN ILLINOIS EAST ALONG THE OHIO RIVER VALLEY CLOSER TO THE SYNOPTIC FRONT. NOT ENOUGH OF A SOUTHERN NUDGE OF HIGH PRESSURE TO COMPLETELY TAKE OUT CHANCES ACROSS NORTHERN PORTIONS OF CENTRAL ILLINOIS. LATER SHIFTS MAY BE ABLE TO TAKE CARE OF THIS. FOR NOW...WILL CONTINUE CHANCE POPS FRIDAY THROUGH SUNDAY NIGHT. NEIGHBORING OFFICES IN GOOD AGREEMENT WITH THIS SCENARIO. GUIDANCE TEMPS AND LITTLE CHANGES ON OVERALL FLOW PATTERN SUGGEST HIGHS IN THE LOW TO MID 80S AND LOW IN THE LOW TO MID 60S OVER MUCH OF THE NEXT 7 DAYS. PLAHMER
ILZ027>031-036>038-040>057-061>063-066>068-071>073-121100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 122 PM CDT WED JUN 11 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHEAST ILLINOIS. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THE ENTIRE LISTENING AREA THIS AFTERNOON AND TONIGHT. THE PRIMARY THREAT WILL BE FROM DAMAGING WINDS AND HAIL. HOWEVER...A TORNADO OR TWO IS ALSO POSSIBLE. THE BEST CHANCE OF SEVERE THUNDERSTORM ACTIVITY WILL BE THIS AFTERNOON AND INTO THE OVERNIGHT. HEAVY RAINS AND POTENTIAL FLOODING WILL ALSO BE POSSIBLE THIS AFTERNOON AND TONIGHT OVER MOST OF THE AREA...ESPECIALLY ALONG AND SOUTH OF I-72. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE WILL BE A CHANCE FOR STRONG TO POSSIBLY SEVERE THUNDERSTORMS TOMORROW OVER AREAS SOUTH OF I-70. THEN...THUNDERSTORMS WILL BE POSSIBLE FRIDAY THROUGH MONDAY ACROSS THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE REQUIRED LATER THIS AFTERNOON AND EVENING. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC AND CLIMATE INFORMATION...IS AVAILABLE ON THE WEB AT: HTTP://WWW.CRH.NOAA.GOV/ILX. THIS ADDRESS IS ALL IN LOWER CASE. EH
The Lincoln radar (KILX), 48 km away, was scanning. The volume nearest the first event began at 23:11 UTC.
8 tornado, 4 flash flood. Local standard time, as filed.
A tornado briefly touched down in a field. No damage or injuries were reported.
A tornado briefly touched down in a field. No damage or injuries were reported.
A tornado briefly touched down in a field. No damage or injuries were reported.
A tornado briefly touched down in a field. It blew down a couple of power lines near the intersection of Illinois Route 10 and Illinois Route 48. No injuries were reported.
A tornado briefly touched down in a field. No damage or injuries were reported.
A tornado briefly touched down in a field. No damage or injuries were reported.
A tornado briefly touched down in a field. No damage or injuries were reported.
A tornado briefly touched down in a field. No damage or injuries were reported.
Very heavy rain fell in a short amount of time. Several rural roads around Latham were flooded due to the heavy rains.
Very heavy rain fell in a short amount of time over the northern portions of Vermilion County. U.S. Route 136 was briefly flooded with 6 to 8 inches of water near Potomac.
Very heavy rain fell in a short amount of time countywide. Several rural roads were flooded and a couple were washed out.
Very heavy rain fell in a short amount of time. This caused several streets in Springfield to become flooded, especially underpasses.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2003Every state in 2003This day in weather historyThe tornado archive for Illinois, 2003Warnings in Illinois, June 2003
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5362951, 5363043, 5363044, 5363045, 5363046, 5363000, 5362950, 5363047, 5363002, 5363003, 5363004, 5363001.