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 Quad Cities, IA wrote its last area forecast discussion before the first event at Jun 10, 3:15 PM CST, 1 hour 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 415 PM CDT THU JUN 10 2004 .SYNOPSIS...STATIONARY FRONT ACROSS IOWA INTO NORTHERN ILLINOIS TO REMAIN THERE OVERNIGHT. THUNDERSTORM COMPLEX TO DEVELOP IN THE PLAINS TONIGHT TO ARRIVE LATE TONIGHT BRINGING ANOTHER ROUND OF RAIN. THUNDERSTORMS TO REDEVELOP IN THE AFTERNOON FRIDAY WITH DAYTIME HEATING. POTENTIAL DOES EXIST LATE FRIDAY AFTERNOON AND EVENING FOR SEVERE STORMS TO DEVELOP. && .SHORT TERM...(TONIGHT AND FRIDAY)... STATIONARY FRONT ACROSS THE EXTREME NORTH PART OF THE CWFA TO REMAIN THERE OVERNIGHT. MODELS INDICATE AN MCS TO FIRE TONIGHT BUT THE QUESTION IS WHERE. LIKELY AREA TO BE IN NEBRASKA WHERE THE LLJ IS THE STRONGEST AND THEN MOVE ROUGHLY ALONG THE FRONT BRUSHING THE NORTHERN CWFA LATE TONIGHT AND FRIDAY MORNING. MODELS HAVE MANY SUBTLE DIFFERENCES BETWEEN THEM ON FRIDAY. HOWEVER ALL AGREE ON THE ATMOSPHERE DRYING OUT DURING THE DAY. IF PLENTY OF DIURNAL HEATING CAN TAKE PLACE...THUNDERSTORMS TO FIRE AGAIN DURING THE AFTERNOON. FAVORABLE SHEAR PROFILES INDICATE STORMS WILL BE ROTATING. KEY FACTOR IS WILL THERE BE AN OUTFLOW BOUNDARY OVER THE AREA. IF THERE IS ONE...POTENTIAL THEN EXISTS FOR SIGNIFICANT SEVERE STORMS TO DEVELOP DURING THE LATE AFTERNOON HOURS. IN HOUSE CALCULATIONS SUGGEST POTENTIAL OF STRAIGHT LINE WINDS OVER 80 MPH WITH BASEBALL SIZED HAIL IF TEMPS CAN GET INTO THE UPPER 80S WITH DEW POINTS AROUND 73. TORNADO COULD ALSO OCCUR WITH POTENTIAL RANGING FROM F1 TO F3. HOWEVER...ONCE AGAIN...THIS IS ALL DEPENDENT ON AN OUTFLOW BOUNDARY BEING OVER THE AREA AND HOW MUCH HEATING CAN TAKE PLACE DURING THE DAY. IF NO OUTFLOW BOUNDARY IS PRESENT AND IF HEATING ONLY GETS US INTO THE LOWER 80S...SEVERE POTENTIAL TO BE GREATLY REDUCED IF NOT ELIMINATED. ...08... .LONG TERM... (SATURDAY THROUGH MONDAY)... MODELS ARE IN GOOD AGREEMENT THAT H5 S/W AND WEAK SURFACE WAVE WILL MOVE THROUGH CWA FRIDAY NIGHT. ETA FCST SOUNDINGS ARE SHOWING VERY UNSTABLE AIR AHEAD OF THE SYSTEM WITH CAPES OVER 3K J/KG AT KBRL BY LATE AFTERNOON. WITH AMOUNT OF INSTABILITY AND GOOD MID LEVEL FORCING...EXPECT A SEVERE WEATHER EVENT FOR THE CWA FRIDAY EVENING. CURRENT THINKING HERE IS THAT LINEAR WIND PROFILES DURING THE EVENING SUGGEST A DAMAGING WIND EVENT AS A SQUALL LINE SWEEPS ACROSS THE CWA. LARGE HAIL WILL ALSO BE A THREAT AS MID LEVELS DRY SIGNIFICANTLY THE NEXT 24 HOURS. SYSTEM SHOULD MOVE TO OUR EAST BY SATURDAY MORNING AND WILL HOLD ON LINGERING SHRA WORDING IN THE NERN SECTIONS. MORE S/W ENERGY MOVES OUT OF THE MEAN MID LEVEL WRN U.S. TROF SATURDAY EVENING. BOTH THE ETA AND THE GFS SHOW A SURFACE LOW DEVELOPING OVER CNTRL KS AHEAD OF THE S/W BY SATURDAY EVENING. FLOW AHEAD OF THE DEVELOPING LOW WILL FOCUS LOW LEVEL MOISTURE CONVERGENCE OVER NERN KS/SERN NE CREATING THE POTENTIAL FOR MCS DEVELOPMENT SATURDAY NIGHT. MODELS ARE IN GOOD AGREEMENT SHIFTING MEAN H5 TROF EAST INTO THE PLAINS BY SUNDAY...BUT ARE HAVING TROUBLE RESOLVING SMALL SCALE FEATURES MOVING THROUGH THE BASE OF THE TROUGH. FOR NOW WILL GO WITH A BROAD BRUSH 30 POPS FOR SUNDAY NIGHT INTO MONDAY. LONG TERM...(TUESDAY THROUGH THURSDAY)... MODELS DIFFERENCES BECOME MORE APPARENT BY MIDWEEK WITH RESPECT TO VARIOUS SOLUTIONS ON HOW THE MID LEVEL FLOW EVOLVES DURING THE PERIOD. WITH LITTLE CONSISTENCY BETWEEN MODELS WILL STAY CLOSE TO PREVIOUS FORECAST KEEPING DRY WEATHER FOR TUESDAY AND CHANCE POPS FOR THE REST OF THE WEEK. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. && DLF
HAZARDOUS WEATHER OUTLOOK...CORRECTION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 400 PM CDT THU JUN 10 2004 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-111000- BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO- CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL- HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA- JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA- MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL- SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL- WASHINGTON IA-WHITESIDE IL- 400 PM CDT THU JUN 10 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST IOWA... EAST CENTRAL IOWA...SOUTHEAST IOWA...NORTHWEST ILLINOIS...NORTH CENTRAL ILLINOIS...WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI. .DAY ONE...TONIGHT SCATTERED THUNDERSTORMS OVER SOUTHEAST IOWA...WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI WILL PRODUCE SOME LOCALLY HEAVY RAIN AND WIND GUSTS OF 30 TO 40 MPH THIS EVENING. A WEAK ISOLATED TORNADO WILL ALSO BE POSSIBLE ALONG AND SOUTH OF HIGHWAY 34 AS THUNDERSTORMS INTERACT WITH A WEAK SURFACE BOUNDARY OVER SOUTHEAST IOWA INTO WEST CENTRAL ILLINOIS. THE THREAT OF ANY TORNADO DEVELOPMENT SHOULD END BY MID EVENING. ANOTHER ROUND OF THUNDERSTORMS WILL BE POSSIBLE LATE TONIGHT...MAINLY ALONG AND NORTH OF INTERSTATE 80. LOCALLY HEAVY RAIN WILL BE POSSIBLE AS THE STORMS MOVE EAST ALONG A FRONT STALLED OVER EAST CENTRAL IOWA AND NORTHERN ILLINOIS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS PORTIONS OF EASTERN IOWA AND NORTHWEST ILLINOIS LATE FRIDAY AFTERNOON AND FRIDAY NIGHT. STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP IN WESTERN AND CENTRAL IOWA FRIDAY AFTERNOON...AS AN UPPER LEVEL DISTURBANCE INTERACTS WITH A STALLED OUT FRONT OVER THE REGION. OTHER ISOLATED THUNDERSTORMS MAY FORM OVER EASTERN IOWA...ALONG THE STATIONARY FRONT DURING THE LATE AFTERNOON HOURS. THERE WILL BE ENOUGH INSTABILITY AND WIND SHEAR...DURING THE AFTERNOON AND EARLY EVENING HOURS...TO ALLOW SOME STORMS TO BECOME SUPERCELLS. THESE STORMS WILL BE CAPABLE OF PRODUCING VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. BY EVENING...THUNDERSTORMS ARE EXPECTED TO FORM INTO A SQUALL LINE AND MOVE THROUGH MUCH OF EASTERN IOWA AND NORTHWEST ILLINOIS. DAMAGING WINDS...LARGE HAIL...AND A FEW TORNADOES MAY OCCUR WITH THESE STORMS THROUGH LATE EVENING. THE GREATEST RISK FOR ANY TORNADOES WILL BE ALONG AND JUST NORTH OF THE STATIONARY FRONT. AT THIS TIME...THIS FRONT IS EXPECTED TO BE FROM CEDAR RAPIDS...TO DAVENPORT...TO PRINCETON ILLINOIS FRIDAY AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL MEDIA FOR FURTHER UPDATES ON THIS POTENTIAL SEVERE WEATHER EVENT. MORE THUNDERSTORMS WILL BE POSSIBLE SATURDAY NIGHT AND SUNDAY...AND AGAIN TUESDAY NIGHT AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE OVER NORTHWEST ILLINOIS TODAY...AND MAY BE NEEDED OVER EASTERN IOWA AND NORTHWEST ILLINOIS LATE FRIDAY AFTERNOON AND FRIDAY NIGHT. REA/ERVIN/DLF
The Quad Cities radar (KDVN), 72 km away, was scanning. The volume nearest the first event began at 22:29 UTC.
1 tornado. Local standard time, as filed.
Winds estimated around 100 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2004Every state in 2004This day in weather historyThe tornado archive for Illinois, 2004Warnings in Illinois, June 2004
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: 5416191.