A bowing line of thunderstorms raced eastward across Illinois and Indiana at 45 mph. The trailing southern end of the bow crossed parts of southern Illinois, accompanied by locally damaging winds.
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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 bowing line of thunderstorms raced eastward across Illinois and Indiana at 45 mph. The trailing southern end of the bow crossed parts of southern Illinois, accompanied by locally damaging winds. The line of storms may have been initiated by a weak upper level disturbance entering northern Illinois. As it moved east, the line gained strength as it fed on a very moist and unstable air mass.
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 19, 1:00 PM CST, 1 hour 27 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 200 PM CDT MON JUL 19 2010 .DISCUSSION... CONVECTION JUST UPSTREAM POISED TO SKIRT ACROSS NRN 1/2 OF REGION THIS EVENING. NAM APPEARS TO POTENTIALLY OVER-MODEL WHILEST GFS SEEMINGLY HAS A NICER PICTURE GRASP AND IS THE WAY WE LEAN...WHICH WILL TAPER POPS FROM MID-HI CHC NORTH/EAST TO SLGT CHC MENTIONS SOUTH/WEST. IT COULD BE A MAINLY THRU 06Z EVENT BUT WE'LL LEAVE A 12 HR GRID PER COLLAB PIC. AFTER THAT MORE ACTIVE NWLYS-WLYS PERCHED JUST NORTH SHOULD CONTINUE TO RACE SMALL PERTURBATIONS IN THE FLOW ACROSS THE WABASH RIVER VALLEY AND EFFECTIVELY OFFER POPS NORTH/EAST TAPERING SOUTH/WEST THRU MID WEEK. AGAIN FOLLOWED GENERAL GFS HANDLE WITH UPPER RIDGING SOUTH CAPPING US OFF AND SHUNTING PCPN OUT OF THE FA BY LATER THURS. THIS BUILDING DOME WILL LIKEWISE BE INCREASING HEAT/HUMIDITY TO NR ADVISORY THRESHOLDS THIS WEEK. AFTER THAT THE NEXT BEST CHC PCPN WILL BE WITH A SMALL/WEAK FRONTAL PASSAGE? THOUGH HARD TO BELIEVE MODELLED BY BOTH GFS/ECMWF AS OCCURRING WITH ATTENDANT POPS LATE SAT-SUN...EVEN IMPLYING SOME SLIGHTLY COOLER/DRIER (CLOSER TO SEASONAL NORMS) AIR FOR AFTER PASSAGE LATE WKEND/EARLY NEXT WEEK. GFS FLAVOR INCLUDES MAV/MEX GENERATED MOS WHICH WAS CLOSE TO INHERITED/COLLABORATIVE. && .AVIATION... EXPECT BAND OF THUNDERSTORMS TO WORK THEIR WAY SOUTH INTO THE AREA AND AFFECT THE TAF SITES BETWEEN 21Z AND AND 01Z IF IT HOLDS TOGETHER. ANY THUNDERSTORMS WILL PRODUCE GUSTY WINDS AND MVFR CIGS AND VSBY FOR AN HOUR OR TWO. AROUND SUNSET EXPECT THE VFR CONDITIONS TO RETURN TO THE AREA. COULD SEE SOME FOG AT KCGI BUT WILL REEVALUATE FOG WHEN WE SEE JUST WHERE IT RAINS THIS AFTERNOON. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. &&
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE PADUCAH KY 448 AM CDT MON JUL 19 2010 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-201000- 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- 448 AM CDT MON JUL 19 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST MISSOURI. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL BE POSSIBLE TODAY AND TONIGHT... ESPECAILLY ALONG AND WEST OF THE MISSISSIPPI RIVER. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE...WITH DAMAGING WIND GUSTS AND HAIL THE PRIMARY CONCERNS. IN ADDITION...LOCATIONS THAT SEE QUITE A BIT OF SUNSHINE TODAY WILL EXPERIENCE HEAT INDICES RANGING FROM 100 TO 105 DEGREES. MINOR FLOODING CONTINUES ALONG PORTIONS OF THE MISSISSIPPI RIVER. PLEASE REFER TO THE LATEST FLOOD STATEMENTS FOR DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SEVERE THUNDERSTORMS CANNOT BE RULED OUT TUESDAY AND WEDNESDAY... ESPECIALLY OVER NORTHERN PORTIONS OF THE REGION ALONG AND NORTH OF THE INTERSTATE 64 CORRIDOR. DAMAGING WIND GUSTS AND HAIL WOULD BE THE PRIMARY HAZARDS. A PROLONGED PERIOD OF HOT WEATHER WITH AFTERNOON HEAT INDICES AROUND 100 DEGREES IS EXPECTED MUCH OF THE WEEK OVER PORTIONS OF SOUTHEAST MISSOURI...THE WESTERN TIP OF KENTUCKY...AND THE SOUTHERN TIP OF ILLINOIS. MINOR FLOODING CONTINUES ALONG PORTIONS OF THE MISSISSIPPI RIVER. PLEASE REFER TO THE LATEST FLOOD STATEMENTS FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE THROUGH MID WEEK...ESPECIALLY UP ALONG THE INTERSTATE 64 CORRIDOR.
The Evansville,IN radar (KVWX), 23 km away, was scanning. The volume nearest the first event began at 20:24 UTC.
4 thunderstorm wind. Local standard time, as filed.
A number of trees were blown down across the county.
Large tree limbs were blown down. One of them landed on a power line.
A couple of trees were blown down near St. Johns.
A wind gust was estimated by a trained spotter near 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2010Every state in 2010This day in weather historyWarnings in Illinois, 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: 243345, 243343, 243348, 243349.