A seasonably strong upper level jet streak extended from the central Rockies into the Ozark Mountains, to the immediate south of a well-defined shortwave trough translating east-southeastward through the Lower Missouri Valley. This shortwave trough moved east through the Mid-Mississippi Valley.
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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.
A seasonably strong upper level jet streak extended from the central Rockies into the Ozark Mountains, to the immediate south of a well-defined shortwave trough translating east-southeastward through the Lower Missouri Valley. This shortwave trough moved east through the Mid-Mississippi Valley. An associated weak surface low accompanied the upper system eastward. Numerous thunderstorms with torrential rain developed during the heat of the afternoon over Wayne County, resulting in flash flooding.
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 Jul 11, 2:24 PM CST, 3 hours 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 324 PM CDT SUN JUL 11 2010 .SHORT TERM... CLOUDINESS HAS INCREASED TODAY OVER MOST OF THE REGION...EXCEPT IN MOST OF SERN MO WHERE SOME SHWRS/TSTMS HAVE PUT OUT SOME OUTFLOW BOUNDARIES. THIS INSOLATION COULD HELP TO MAINTAIN DESTABILIZATION IN THAT AREA...INDICATED BY LAPS TO BE IN EXCESS OF 3500 J/KG. A CONVECTIVE COMPLEX HEADING THROUGH CENTRAL MISSOURI WITH SOME SVR STORMS MAY AFFECT WRN PARTS OF OUR REGION BY LATE THIS AFTN. ATTM IT APPEARS MOST OF THE STRONG TO SVR CONVECTION...IF IT OCCURS...WILL FIRE ALONG A BAROCLINIC ZONE DRAPED ACROSS NRN PARTS OF SERN MO. MEANWHILE...SHWRS AND TSTMS WILL CONTINUE TO BECOME MORE NUMEROUS THROUGH TONIGHT FROM WEST TO EAST ACROSS THE PAH FCST AREA AS A UPPER LEVEL JET MAX/MID LEVEL TROF COMBINES WITH LOW LEVEL MOIST ADVECTION OVER THE REGION. THE MODELS APPARENTLY WERE TOO SLOW WITH THIS INITIAL SYSTEM YESTERDAY AND HAVE NOW CAUGHT UP. THERE SHOULD BE A LULL ON MON BETWEEN SYSTEMS. A COLD FRONT MAY MAKE IT PARTIALLY INTO OUR REGION FROM THE NORTH ON MONDAY. IT COULD PROVIDE SOME FORCING FOR DEEP MOIST CONVECTION IN PARTS OF THE REGION. WINDS TURN BACK TO THE SOUTH LATE MONDAY AHEAD OF A SECOND...SLIGHTLY DEEPER MID LEVEL SHRTWV AND LOWER PRESSURE AT THE SFC. RAINFALL RETURNS FROM THE SW ON MON NIGHT AND IS LIKELY ON TUE EVERYWHERE. SOME HEAVY RAINFALL RATES ARE POSSIBLE TUE. THE SYSTEM SHOULD RAPIDLY DEPART TUE NIGHT TOWARD THE EAST. SVR WX POTENTIAL SEEMS LIMITED WITH THE SECOND SYSTEM ATTM. .LONG TERM.../WEDNESDAY THRU SUNDAY/ UNSETTLED PATTERN EXPECTED TO CONTINUE FOR WEDNESDAY AND BEYOND. BOTH ECMWF AND GFS SHOW ON AND OFF CHANCES OF SHOWERS AND STORMS THROUGH THE EXTENDED...THOUGH RARELY AT THE SAME TIME. DECIDED TO GO WITH PERSISTENCE...KEEPING MAINLY AFTERNOON INTO EARLY EVENING SLIGHT CHANCE POPS EVERY DAY. ONLY MINOR CHANGES MADE TO GOING TEMPS BASED ON LATEST MEX GUIDANCE...WITH TEMPS REMAINING A LITTLE ABOVE SEASONAL NORMALS. && .AVIATION... VFR CONDITIONS EXPECTED AS ISOLATED TO SCATTERED SHRA/TSTMS DEVELOP THROUGH THE AFTERNOON. ACTIVITY SHOULD LINGER UNTIL AROUND 05Z AT KCGI AND KPAH...AND UNTIL AROUND 10Z KEVV AND KOWB. WITH SCATTERED NATURE OF CONVECTION...WILL JUST KEEP CB MENTION AND/OR VCTS IN TAFS UNTIL MORE ORGANIZED ACTIVITY HEADS TOWARD A TAF SITE. WINDS WILL BE FROM THE SOUTHWEST AT 5 TO 10 KTS...WITH HIGHER GUSTS NEAR STORMS. LOW VFR CONDITIONS EXPECTED LATE TONIGHT BEFORE SHRA/TSTMS REDEVELOP LATE MORNING/EARLY AFTERNOON. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. && SHORT TERM...DAB LONG TERM/AVIATION...RST
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PADUCAH KY 411 PM CDT SUN JUL 11 2010 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-122115- 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- 411 PM CDT SUN JUL 11 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST MISSOURI. .DAY ONE...TONIGHT SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS THE REGION TONIGHT. SEVERE STORMS ARE POSSIBLE INTO THIS EVENING WITH LARGE HAIL AND DAMAGING WINDS...MAINLY ACROSS SOUTHEAST MISSOURI...AND ALONG AND WEST OF A LINE FROM PINCKNEYVILLE ILLINOIS...TO SHAWNEETOWN...TO MARION KENTUCKY...TO MURRAY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY THROUGH SATURDAY. THE MOST LIKELY PERIOD TO EXPERIENCE THUNDERSTORMS IS MONDAY INTO TUESDAY. AFTER THAT...MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE THE REST OF THE WEEK. ORGANIZED SEVERE WEATHER IS NOT EXPECTED. LOCALLY HEAVY RAINFALL WILL BE THE MAIN HAZARD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUESTED THIS EVENING ACROSS SOUTHEAST MISSOURI...AND AREAS OF SOUTHERN ILLINOIS AND WEST KENTUCKY ALONG AND WEST OF A LINE FROM PINCKNEYVILLE...TO SHAWNEETOWN...TO MARION KENTUCKY...TO MURRAY. RST
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
348 PM CDT SUN JUL 11 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0325 PM HAIL MARION 37.73N 88.94W
07/11/2010 E1.75 INCH WILLIAMSON IL LAW ENFORCEMENT
SEVERAL POWER POLES DOWN IN THE MARION HERRIN AND
JOHNSTON CITY AREAS. NUMEROUS PEOPLE WITHOUT POWER.
&&
KELLYHThe Paducah radar (KPAH), 152 km away, was scanning. The volume nearest the first event began at 23:30 UTC.
1 flash flood. Local standard time, as filed.
U.S. Highway 67 was flooded in several places. Widespread flooding was observed on area roadways across the county.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2010Every state in 2010This day in weather historyWarnings in Missouri, July 2010
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: 243250.