An isolated severe thunderstorm developed along a stalled frontal boundary that extended from west to east across extreme southern Indiana and southern Illinois. The atmosphere was very moist and unstable.
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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.
An isolated severe thunderstorm developed along a stalled frontal boundary that extended from west to east across extreme southern Indiana and southern Illinois. The atmosphere was very moist and unstable.
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 20, 5:08 PM CST, 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 608 PM CDT SAT JUN 20 2009 .UPDATE... UPDATED THE AVIATION SECTION BELOW FOR THE LATEST TAF ISSUANCE. && .DISCUSSION... /ISSUED 114 PM CDT SAT JUN 20 2009/ MAIN NEAR TERM FORECAST CONCERN OUTSIDE OF CONVECTION IS HEAT. MODELS SHOW MID 90S HIGHS W/LOW-MID 70S TDS CONTINUING NEXT 2 DAYS...RESULTING IN APPARENT TEMPS 100-105...WILL THEREFORE CONTINUE/EXTEND OUR WEEKEND HEADLINING INTO MONDAY TO COVER AS WELL AS HIGHLIGHT VIA HWO. SPOTTY CONVECTIVE CHANCES ARE HARD TO PINPOINT BUT SHOULD BE GENERALLY TIED TO WASHED OUT BOUNDARY AS ENERGY SPILLS OVERTOP UPPER RIDGE NUDGING INTO MID MS VALLEY FROM THE SW. THE NEW GFS SUGGESTS THIS COULD CONTINUE OFF AND ON THROUGH THE NEXT WEEK...BUT FOR NOW WE ARE GOING TO STICK W/ PERSISTENCE AND ATTAIN TO FIT THE COLLAB PIC INSOFAR AS POPS (DAILY) ARE CONCERNED. MOS TEMPS ARE BLENDED WITH INHERITED NOS AND COLLAB PIC AS WELL. MOS TDS/HUMIDITIES GENERALLY ACCEPTED NEAR-MEDIUM RANGE W/LONGER RANGE NOS BLENDED FOR COLLAB PIC. && .AVIATION... WILL CARRY VICINITY THUNDER THROUGH EARLY EVENING AT KEVV AND KOWB WITH RADAR SHOWING ECHOS JUST WEST OF BOTH TERMINALS...AND WE WILL ADJUST ACCORDINGLY IF NEED BE. OTHERWISE...A FEW HIGH CLOUDS POSSIBLE TONIGHT...AND POSSIBLY A FEW CU SUNDAY. WINDS SHOULD SLACKEN MORE TONIGHT WITH LESS OF A GRADIENT REFLECTED AT THE SURFACE. ..NOLES.. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PADUCAH KY 150 PM CDT SAT JUN 20 2009 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-211000- 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- 150 PM CDT SAT JUN 20 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY...AND SOUTHEAST MISSOURI. .DAY ONE...THIS AFTERNOON AND TONIGHT A SMALL CHANCE OF THUNDERSTORMS CONTINUES. ALTHOUGH AN ISOLATED SEVERE STORM IS NOT OUT OF THE QUESTION...WIDESPREAD SEVERE WEATHER IS NOT EXPECTED. LOCALLY HEAVY RAIN...LIGHTNING...AND GUSTY WIND WOULD BE THE PRIMARY THREATS WITH A STRONGER STORM. HEAT INDICES THIS AFTERNOON AND EVENING WILL HOVER IN THE 100 TO 105 DEGREE RANGE. MINOR FLOODING CONTINUES AND IS FORECAST FOR PORTIONS OF THE MISSISSIPPI RIVER. REFER TO THE WARNINGS AND STATEMENTS FOR DETAILS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THUNDERSTORMS CONTINUE IN THE FORECAST THROUGH MONDAY. WHILE WIDESPREAD SEVERE CHANCES ARE NOT EXPECTED...AN ISOLATED SEVERE STORM CANNOT BE RULED OUT. LOCALLY HEAVY RAIN...LIGHTNING...AND GUSTY WIND WOULD BE THE PRIMARY THREATS WITH A STRONGER STORM IF ONE WERE TO OCCUR. THE HEAT INDEX WILL TOP OUT IN THE 100 TO 105 RANGE AGAIN BOTH SUNDAY AND MONDAY AFTERNOON. MINOR FLOODING ON THE MISSISSIPPI RIVER WILL CONTINUE. REFER TO THE WARNINGS AND STATEMENTS FOR MORE DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PADUCAH KY 626 PM CDT SAT JUN 20 2009 INZ085-086-KYZ014-018-210030- POSEY-VANDERBURGH-UNION KY-HENDERSON- INCLUDING THE CITIES OF...POSEYVILLE...EVANSVILLE...MORGANFIELD... HENDERSON 626 PM CDT SAT JUN 20 2009 ...SIGNIFICANT WEATHER ADVISORY... A STRONG THUNDERSTORM OVER NORTHEAST UNION COUNTY KENTUCKY...WILL CONTINUE EAST THROUGH 730 PM...AND MOVE INTO HENDERSON COUNTY KENTUCKY AREA...NEAR OR JUST SOUTH OF HENDERSON PROPER. THIS STORM MAY PRODUCE HAIL UP TO PENNY SIZE AND GUSTY WINDS 40 TO 50 MPH AS IT EXITS NORTHEAST UNION COUNTY KENTUCKY AND MOVES INTO HENDERSON COUNTY. AT THIS TIME...IT APPEARS THIS STORM WILL LIKELY REMAIN SOUTH OF THE GREATER EVANSVILLE AREA. NOLES
The Evansville,IN radar (KVWX), 51 km away, was scanning. The volume nearest the first event began at 23:49 UTC.
1 thunderstorm wind. Local standard time, as filed.
A wind gust to 62 mph was measured at the Henderson City-County Airport. A hangar door was blown off.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2009Every state in 2009This day in weather historyWarnings in Kentucky, June 2009
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: 172542.