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 St. Louis, MO wrote its last area forecast discussion before the first event at May 19, 12:30 PM CST, 3 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 130 PM CDT WED MAY 19 2004 .DISCUSSION... WRMR MORE SUMMERLIKE WX PATTERN EXPECTED THRU MUCH OF THE FCST PERIOD WITH THE BEST CHC FOR CONVECTION N OF THE CWA. STNRY FNT EXTDG FM NWRN MO SE THRU CNTRL IL...NR COU AND STL WL BGN TO LIFT NWD AS MID-UPR LVL RDG OVR TX BLDS NEWD INTO SRN MO TGT. SCT TSRA SHOULD DVLP ACRS MUCH OF THE CWA LATE THIS AFTN INTO THIS EVNG ALNG AND N OF THIS STNRY FNT AS THE ATMOSPHERE CONTS TO DESTABILIZE AS THE CLOUD CVR ACRS THE CWA THINS OUT...AND ALSO ALNG OLD OUTFLOW BNDRYS FM EARLY MRNG MCS WHICH ARE LOCATED S OF THE STNRY FNT. LTR TGT MOST OF THE CONVECTION...MCS ACTIVITY SHOULD BE N OF THE CWA BTWN STNRY FNT LFTG SLOWLY NWD AND CDFNT ASSOCIATED WITH MID-UPR LVL TROF MOVG EWD THRU THE NRN PLAINS INTO THE GRT LKS REGION. PLAN TO CONFINE POPS TO THE NRN OR NERN PTN OF THE CWA LATE TGT AS POSSIBLE MCS ACTIVITY ACRS IA MAY MOV SEWD INTO THIS PTN OF THE CWA. ETA MDL ALSO DEPICTS SIGNIFICANT 850 MB WAA AND HIGH 850 MB DWPTS ACRS NRN MO INTO CNTRL IL ON NOSE OF W-SWLY LLJ LATE TGT. WILL CONT WITH LOW POPS OVR THE NRN PTN OF THE CWA ON THU WITH E-W STNRY FNT NR THE IA MO BORDER AND BOTH ETA AND GFS MDLS SHOWING SHRTWV TROF MOVG EWD THRU IA ARND THE MID-UPR LVL RDG CNTRD OVR SRN MO AR. MUCH WRMR HI TEMPS THU AFTN WITH MDLS ADVECTING ARND 20 DGR C 850 MB TEMPS NEWD INTO CWA ON THU...S-SWLY LOW LVL FLOW...AND PLENTY OF SOLAR INSOLATION ESPECIALLY ALNG AND S OF I-70. STNRY FNT SHOULD LFT FURTHER NWD THU NGT AND FRI AS SFC WAVE MOVS NEWD INTO NEBRASKA AND MID-UPR LVL SWLY FLOW INCRS ACRS THE NRN PLAINS AS THE MID-UPR LVL HI SHIFTS EWD INTO THE SERN US. MAY LEAVE POPS OUT OF ENTR CWA LATE THU NGT THRU SAT WITH ABV NORMAL TEMPS FCST. WILL LIKELY GO SLIGHTLY ABV MDL MOS GUIDANCE TEMPS FOR DAYTIME MAXES ESPECIALLY FOR THE CITY OF ST LOUIS THU THRU SAT WITH CONTD S-SWLY LOW LVL FLOW AND PLENTY OF SOLAR INSOLATION. PUT LOW POPS ACRS MUCH OF THE CWA ON SUN THRU MON AS SHRTWV TROF MOVS EWD THRU THE REGION WITH SYNOPTIC FNT MOVG SEWD INTO AT LEAST NRN MO. && .LSX WATCHES/WARNINGS/ADVISORIES... .MO...NONE .IL...NONE GKS EFFECTIVE 7 AM JUNE 8 2004...THE AWIPS PRODUCT IDENTIFIER FOR THIS PRODUCT WILL CHANGE FROM AFDSTL TO AFDLSX. THE WMO HEADER WILL REMAIN UNCHANGED. PLEASE ENSURE THAT ANY NEEDED CHANGES ARE COMPLETED BY JUNE 8 2004.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 402 PM CDT WED MAY 19 2004 ILZ095>097-MOZ018-019-026-027-034-035-201100- ADAMS IL-BROWN-KNOX-LEWIS-MARION-MONROE-PIKE IL-RALLS-SHELBY- 402 PM CDT WED MAY 19 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS. .DAY ONE...TONIGHT THERE IS A CHANCE OF THUNDERSTORMS TONIGHT. IF ANY THUNDERSTORMS DO DEVELOP...AN ISOLATED STRONG OR SEVERE THUNDERSTORM IS POSSIBLE WITH HAIL...GUSTY WINDS...AND TORRENTIAL DOWNPOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE CHANCE OF THUNDERSTORMS WILL PERSIST THURSDAY AND THURSDAY NIGHT. THUNDERSTORMS WILL THEN BE POSSIBLE AGAIN DURING THE PERIOD FROM SATURDAY NIGHT THROUGH TUESDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TONIGHT. ILZ058>060-064-065-069-070-074-079-098>102-MOZ036-041-042-047>052- 059>065-072>075-084-085-099-201100- AUDRAIN-BOND IL-BOONE-CALHOUN IL-CALLAWAY-CLINTON IL-COLE-CRAWFORD- FAYETTE IL-FRANKLIN-GASCONADE-GREENE IL-IRON-JEFFERSON-JERSEY IL- LINCOLN-MACOUPIN IL-MADISON-MADISON IL-MARION IL-MONITEAU-MONROE IL- MONTGOMERY-MONTGOMERY IL-OSAGE-PIKE-RANDOLPH IL-REYNOLDS-ST CHARLES- ST CLAIR IL-ST FRANCOIS-ST LOUIS-ST LOUIS CITY-STE GENEVIEVE-WARREN- WASHINGTON-WASHINGTON IL- 402 PM CDT WED MAY 19 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AND WELL AS PARTS OF SOUTHWEST ILLINOIS. .DAY ONE...TONIGHT THERE IS A CHANCE OF THUNDERSTORMS THIS EVENING. IF ANY THUNDERSTORMS DO DEVELOP...AN ISOLATED STRONG THUNDERSTORM IS POSSIBLE WITH SMALL HAIL...GUSTY WINDS TO 40 MPH...AND TORRENTIAL DOWNPOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE WILL BE A CHANCE FOR THUNDERSTORMS AGAIN STARTING ON SUNDAY AND CONTINUING THROUGH MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. GLASS
The St Louis radar (KLSX), 107 km away, was scanning. The volume nearest the first event began at 21:50 UTC.
1 tornado. Local standard time, as filed.
Local law enforcement reported a brief tornado touchdown along Stolletown Road. No damage was reported.
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, May 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: 5396637.