43 feet. It fell below flood stage on July 18.
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 episode as NWS LSX wrote it up.
The Mississippi River crested at Grafton, IL on July 1 at 30.43 feet. It fell below flood stage on July 18. For additional information about the flooding consult the June report.
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 Jul 17, 6:33 PM CST, 8 hours 27 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED AVIATION NATIONAL WEATHER SERVICE ST LOUIS MO 733 PM CDT THU JUL 17 2008 .DISCUSSION... /405 PM CDT THU JUL 17 2008/ PERSISTENCE CONTS TO DOMINATE THE FCST. ONGOING CNVTN ACRS NEB AND IA IS EXPECTED TO CONT TO MV SEWD TNGT...BRINGING THE EFFECTIVE FNT INTO NWRN MO FRI. THIS SOLN AGREES WELL WITH THE NAM AND LOCALLY RUN WRM MDLS. ECMWF KEEPS THE FNT A LITTLE FURTHER NWD. WRM TEMPS AND HI DWPTS AHEAD OF THE FNT WL ALLOW FOR MODERATE INSTABILITY TMW AFTN AND EVE ACRS NRN MO AND SRN IA. MDLS INDICATE AN MCS WL FORM ACRS NRN MO AND SRN IA FRI NGT. PROPAGATION VECTORS WUD SUGGEST THAT AT LEAST A PORTION OF THIS MCS WL AFFECT NRN PORTIONS OF THE CWA. PRECIP CHCS WL DECREASE SAT AND SUN AS 700MB CAP BUILDS INTO THE REGION. BEST CHCS WL BE THE N AND NE PORTIONS OF THE CWA AS THE UPR LVL S/W PULL THE FNT NWD DURING THE DAY SAT. WITH S TO SW WINDS IN PLACE SUN...AND 850MB TEMPS IN THE 21 TO 24C RANGE...HEAT WL BECOME THE FOCUS. THERE ARE SOME SLGT CHCS OF PRECIP MON NGT AS ECMWF KEEPS SFC BNDY IN THE REGION. AS THE WRMFNT LIFTS TO THE N...WARM AIRMASS BUILDS INTO THE AREA AGAIN BRINING HIGHER DWPTS ALONG THIS TIME. TRENDED FCST TWD THE NAM AND LOCAL WRF IN SHORT TERM WHILE TRENDING TWD THE ECMWF IN EXTD. GFS CONTAINS CNVTV FEEDBACK ONCE AGAIN AND THE UKMET KEEP FNT TOO FAR NWD. FOR TEMPS...STAYED WITH PERSISTENCE AND ONLY MAKING MINOR CHANGES FROM PREV FCST. TILLY && .AVIATION... /730 PM CDT THU JUL 17 2008/ FOR THE 00Z TAFS...VFR WEATHER CONTINUES AS HIGH PRESSURE REMAINS IN CONTROL. SUSPECT THAT THUNDERSTORMS WILL GET CLOSER TO NORTHEAST MO WITH TIME...PRIMARILY FRIDAY NIGHT INTO SATURDAY AS WEAK UPPER TROFS MOVE EAST IN THE ZONAL FLOW ACROSS THE UPPER MIDWEST. BUT FOR THE CURRENT FORECAST PERIOD...NONE ARE EXPECTED JPK && .LSX WATCHES/WARNINGS/ADVISORIES... MO...NONE. IL...NONE. && WFO LSX
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1154 PM CDT THU JUL 17 2008 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-181200- GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL- MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL- CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS- SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE- CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN- ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON- ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS- 1154 PM CDT THU JUL 17 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...REST OF TONIGHT THERE IS A SLIGHT CHANCE FOR THUNDERSTORMS OVER NORTHEAST MISSOURI. SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THE CHANCE OF THUNDERSTORMS CONTINUES THROUGH SATURDAY NIGHT ACROSS NORTHEASTERN MISSOURI AND WEST CENTRAL ILLINOIS. THE CHANCE OF THUNDERSTORMS RETURNS ON MONDAY NIGHT AND TUESDAY ACROSS PORTIONS OF WEST CENTRAL AND SOUTHWESTERN ILLINOIS. TEMPERATURES IN THE MID 90S AND HIGH HUMIDITIES WILL ALLOW HEAT INDICES TO REACH THE 100 DEGREE MARK ACROSS THE ST. LOUIS METRO AREA ON SUNDAY AND THROUGH NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. && FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1 TES
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Mississippi River crested at Grafton, IL on July 1 at 30.43 feet. It fell below flood stage on July 18. For additional information about the flooding consult the June report.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2008Every state in 2008This day in weather historyWarnings in Illinois, July 2008
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: 129299.