Several rivers that had risen above flood stage in late June fell back in early to mid July. Floodwaters from the Missouri River finally made it down the Mississippi River, resulting in crests with minor to moderate flooding early in the month.
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 PAH wrote it up.
Several rivers that had risen above flood stage in late June fell back in early to mid July. Floodwaters from the Missouri River finally made it down the Mississippi River, resulting in crests with minor to moderate flooding early in the month. Heavy rainfall across southern Illinois during the last week of June and the first week of July sent the Little Wabash River above flood stage for a few weeks.
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 Paducah, KY wrote its last area forecast discussion before the first event at Jun 30, 1:59 PM CST, 10 hours 1 minute earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 259 PM CDT THU JUN 30 2011 .DISCUSSION... LITTLE CHANGE TO PREVIOUS FORECAST. THE SURFACE RIDGE IS STILL HOLDING STRONG OVER THE AREA...WHICH IS SERVING TO KEEP DRIER AIR OVER THE REGION...AND HOLD OFF THE WARM UP SOME. THE 12Z GUIDANCE IS IN PRETTY GOOD AGREEMENT OVERALL THROUGH THE FORECAST. THE UPPER RIDGE WILL BUILD OVER THE AREA THROUGH FRIDAY AND REMAIN OVER THE AREA SATURDAY. THE ECMWF CONTINUES TO HINT AT SOME CONVECTION SLIDING SOUTH DOWN THE EDGE OF THE DEVELOPING CAP THROUGH THE KEVV AREA FRIDAY MORNING. NO OTHER GUIDANCE DEVELOPS PRECIPITATION THERE...SO WILL MENTION IT HERE BUT NOT INCLUDE A POP IN THE FORECAST. OTHERWISE...WE SHOULD BE DRY THROUGH SATURDAY. SATURDAY STILL LOOKS TO BE THE WARMEST DAY...AS THE LOW-LEVEL THERMAL RIDGE EXTENDS ACROSS THE I-70/64 AREA. GUIDANCE HAS BEEN GRADUALLY TRENDING LOWER WITH DEWPOINTS...SO HEAT INDICES MAY ONLY TOUCH 100 IN SOME LOCATIONS SATURDAY AFTERNOON. OTHERWISE...THEY SHOULD STAY IN THE 90S THROUGH THE WEEKEND. ALL AVAILABLE GUIDANCE BRINGS A WEAK COLD FRONT THROUGH MOST OF THE REGION SATURDAY NIGHT. IT WILL BE UNDERCUTTING A RATHER STRONG/WARM RIDGE ALOFT...SO THE MODELS ARE NOT DEVELOPING MUCH IF ANY QPF. AM ALWAYS CONCERNED WITH A BOUNDARY MOVING INTO A HOT/HUMID AIRMASS...SO WILL KEEP A SLIGHT CHANCE IN THE NORTH...AS THE RIDGE GETS SUPPRESSED TO THE SOUTH. THE ECMWF AND GFS ARE NOT SURE WHAT TO DO WITH THE FRONT...BUT THEY DO BRING THE AREA BACK INTO WEAK NORTHWEST FLOW ALOFT BY SUNDAY...WHICH SHOULD WEAKEN THE CAP TO SOME EXTENT. TRYING TO TIME WAVES IN THE MID/UPPER LEVEL FLOW AND SUBSEQUENT BOUNDARY MOVEMENTS IS FOOLISH THIS FAR OUT...SO GENERALLY HAVE SLIGHT CHANCE POPS IN THE FORECAST FOR SUNDAY THROUGH THURSDAY. GUIDANCE IS HINTING AT SLIGHTLY BETTER POPS MONDAY AND AGAIN ON THURSDAY. TUESDAY NIGHT IS STILL THE LONE DRY PERIOD IN THE EXTENDED. && .AVIATION... VFR CONDITIONS EXPECTED AT ALL SITES THROUGH THE TAF PERIOD WITH ONE SMALL EXCEPTION. WE MAY SEE BRIEF MVFR FOG BETWEEN 08Z AND 13Z...BUT CONFIDENCE IS TOO LOW TO INCLUDE IN TAFS AT THIS TIME. LIGHT SOUTH TO SOUTHEAST WINDS TODAY WILL BECOME CALM OVERNIGHT...THEN PICK UP FROM THE SOUTH AROUND 5 KTS AFTER 14Z. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. && PUBLIC.....DRS AVIATION...RST
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PADUCAH KY 310 PM CDT THU JUN 30 2011 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-011000- JEFFERSON-WAYNE IL-EDWARDS-WABASH-PERRY IL-FRANKLIN-HAMILTON- WHITE-JACKSON-WILLIAMSON-SALINE-GALLATIN-UNION IL-JOHNSON-POPE- HARDIN-ALEXANDER-PULASKI-MASSAC-GIBSON-PIKE-POSEY-VANDERBURGH- WARRICK-SPENCER-FULTON-HICKMAN-CARLISLE-BALLARD-MCCRACKEN-GRAVES- LIVINGSTON-MARSHALL-CALLOWAY-CRITTENDEN-LYON-TRIGG-CALDWELL- UNION KY-WEBSTER-HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN- MUHLENBERG-TODD-PERRY MO-BOLLINGER-CAPE GIRARDEAU-WAYNE MO-CARTER- RIPLEY-BUTLER-STODDARD-SCOTT-MISSISSIPPI-NEW MADRID- 310 PM CDT THU JUN 30 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST MISSOURI. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. REFER TO THE LATEST RIVER FLOOD WARNINGS AND STATEMENTS FOR RIVER FLOOD INFORMATION. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A SMALL CHANCE OF THUNDERSTORMS IS FORECAST FROM SATURDAY NIGHT THROUGH WEDNESDAY. A STRAY SEVERE STORM CANNOT BE RULED OUT...BUT WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED DURING THIS PERIOD. AFTERNOON HEAT INDEX VALUES AROUND 100 DEGREES WILL BE POSSIBLE SATURDAY. OTHERWISE TRIPLE DIGIT HEAT INDICES ARE NOT FORECAST THIS WEEKEND. REFER TO THE LATEST RIVER FLOOD WARNINGS AND STATEMENTS FOR RIVER FLOOD INFORMATION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH SATURDAY. DRS
The national radar mosaic for the moment the first event began.
7 flood. Local standard time, as filed.
Minor flooding continued on the Ohio River into the first few days of July. There was some minor inundation of low-lying fields and parkland near the river.
Minor flooding on the Big Muddy River continued into mid-July. The river continued slowly falling after reaching its crest in June. Some low-lying fields and parklands near the river were underwater.
Minor flooding on the Big Muddy River continued into mid-July. The river continued slowly falling after reaching its crest in June. Some low-lying fields near the river were underwater.
The Mississippi River finally fell below flood stage for the first time since April 21. At the Thebes river gage, the highest level (or crest) in July was 37.77 feet on the 6th. This crest represented moderate flooding. Though the flooding in July was considerably less severe than the preceding three months, a small number of homes and businesses remained underwater early in July. The Mississippi River remained too high to raise any of the locks and gates along the levees. As a result, the water from recent heavy rains as well as lingering floodwater from May remained trapped inland.
Minor flooding continued on the Little Wabash River from late June into mid July. At the Carmi river gage, the highest level (or crest) was 31.83 feet on the 9th. Flood stage is 27 feet. There was flooding of fields and low-lying county roads near the river.
Along the Wabash River, minor flooding that began in late June ended on the first day of July. Some low-lying fields and woodlands near the river were inundated.
Minor flooding that began on the Wabash River in late June ended very early in July. There was some inundation of low-lying fields near the river.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2011Every state in 2011This day in weather historyWarnings in Illinois, July 2011
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: 321939, 321941, 321942, 321948, 321951, 323215, 323217.