1 tornado, as filed by the National Weather Service.
Every event with a place to put it. 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 Chicago, IL wrote its last area forecast discussion before the first event at Jun 10, 3:00 PM CST, 2 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO IL 400 PM CDT TUE JUN 10 2003 PUBLIC FORECAST DISCUSSION FOR PM GRIDS/ZONES... SHORT WAVE MOVG E FM NE MN INTO WRN LK SUPERIOR WHILE STG MID LEVEL CIRCULATION MOVS E FM TX PNHDL INTO WRK OK. HIGH THETA-E AIR CONTS TO SPREAD NNE ACROSS MS VLY TO WRN GRTLKS WITH MID 60S TO LWR 70S DWPTS ERN MO TO NRN IL AHEAD OF CDFNT TRAILING SWWRD FROM SFC LOW IN CNTRL WI. SCT RW/TSRA HAVE DVLPD IN CNTRL WI ALONG CDFNT WHILE INTENSE CONVECTION EXPANDS IN CNTRL MO IN RESPONSE TO SRN PLAINS SHORT WAVE. THIS ACTIVITY SHUD MOV GENERALLY E ACROSS CNTRL IL IN MEAN WRLY FLOW. SHUD ALSO SAP POTENTIAL FOR CONVECTION FURTHER N INTO CWA LATER THIS EVE AS CDFNT APPROACHES SO EXPECT SCT SHRA W/ CHC OF A FEW TSRA TIL FROPA. CDFNT TO HAND UP IN/NEAR FAR SRN CWA OVRNGT AND WED AS MID LVL LOW MOVS TO MID MS VLY BY 00Z THU. MAIN CONVECTIVE ACTIVITY TO BE NEAR SFC BNDRY WED INTO WED NIGHT...WITH CHC FURTHER N INTO CWA. LAKE INFLUENCE ON TEMPS WED THRU FRI WITH ERLY COMPONENT IN LOW LEVEL WNDS. GREATEST COOLING WED AS FELL FETCH DOWN LAKE FOR GOOD PORTION OF DAY WHERE MID LAKE TEMPS STILL ONLY UPR 30S TO LWR 40S. .CHI...NONE TRS
ILZ003>006-008-010>014-019-020>023-032-033-039-
INZ001-002-010-011-019-111130-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO IL
430 PM CDT MON JUN 9 2003
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...NORTHWEST INDIANA...AND THE ADJACENT WATERS OF LAKE
MICHIGAN.
.DAY ONE... TONIGHT
THERE IS A SLIGHT RISK OF SEVERE WEATHER THIS EVENING OVER THE
OUTLOOK AREA. THERE WILL BE SCATTERED SHOWERS AND A CHANCE OF
THUNDERSTORMS THIS EVENING AS COLD FRONT MOVES THROUGH. THERE IS A
CHANCE THAT IF STORMS DEVELOP THAT THEY COULD PRODUCE LARGE HAIL OR
DAMAGING WINDS THIS EVENING.
.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY
THE NEXT CHANCE FOR THUNDERSTORMS ACROSS THE OUTLOOK IS FRIDAY
THROUGH SUNDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION COULD BE NECESSARY THIS EVENING.
&&
NWS CHICAGO WEBPAGE
HTTP://WWW.CRH.NOAA.GOV/LOT (LOWER CASE)
OR HTTP://WEATHER.NOAA.GOV/CHICAGO (LOWER CASE)PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
137 PM CDT TUE JUN 10 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1030 AM WINFIELD IL NON TSTM WINDS
06/10/03 DUPAGE unknown MPH NON TSTM
WINDS. WIND BLEW DOWN A
ONE AND ONE HALF FOOT
DIAMETER BRANCH AND
CUSHED TWO CARS.
REPORTED BY EMERGENCY
MANAGEMENT.The Chicago radar (KLOT), 62 km away, was scanning. The volume nearest the first event began at 23:30 UTC.
1 tornado. Local standard time, as filed.
A brief tornado touched down about two miles northeast of Shabbona Grove. The tornado damaged some crops but was only on the ground for about one minute.
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: 5363105.