A cold front along with a weak upper level system set off an isolated severe thunderstorm in Harrison County, Indiana.
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 LMK wrote it up.
A cold front along with a weak upper level system set off an isolated severe thunderstorm in Harrison County, Indiana.
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 Louisville, KY wrote its last area forecast discussion before the first event at Aug 9, 6:19 PM EST, 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 719 PM EDT THU AUG 9 2007 .AVIATION (00Z TAF ISSUANCE)... LOCAL RADAR IMAGERY BEGINNING TO LIGHT UP A BIT THIS EVENING. RECENT ACARS SOUNDINGS FROM KSDF HAVE REVEALED A SUBSTANTIAL CAPPING INVERSION AROUND JUST ABOVE 800MB THIS AFTERNOON. HOWEVER...COMBINATION OF COOLING DUE TO SUNDOWN AND APPROACHING S/W HAS ERODED THE CAP SOMEWHAT AND CONVECTION HAS SLOWLY DEVELOPED ACROSS THE REGION. FOR AVIATION PURPOSES...MAINLY KSDF WILL HAVE THE BEST SHOT AT SEEING SOME T-STORM ACTIVITY OVER THE NEXT SEVERAL HOURS...SPECIFICALLY BETWEEN 00-02Z. THEREFORE WILL KEEP A TEMPO GROUP IN AT THIS TIME. CONVECTION MAY ALSO START TO DEVELOP OVER IN THE KLEX AREA IN THE NEXT COUPLE OF HOURS...SO WILL ALSO MAINTAIN A VCTS THERE. KBWG LOOKS TO BE OK THIS EVENING WITH MAINLY JUST SOME HIGH CLOUD DEBRIS FROM CONVECTION OFF NEAR PAH. -MJ .SHORT TERM (TNGT AND FRI)... WILL CONTINUE HEAT ADVISORY THRU 8 PM EDT WITH HEAT INDICES RANGING FROM 100 TO 110 AT 2 PM. TEMPS WERE ALREADY NEAR RECORD HIGHS AT SDF AND LEX. DEWPOINTS WILL CONT TO LEVEL OFF OR FALL A DEG OR SO THRU LATE AFTN. WEAK SHRTWV TROF WILL MOVE THRU OUR FA TNGT WITH ZONAL FLO BECOMING NWLY. WEAK SFC TROF EXTENDS FROM CNTRL INDIANA INTO SEMO WITH A WEAK COOL FRONT RIGHT BEHIND IT NEAR STL. TROF/FRONT WILL DROP SEWD TNGT AHEAD OF/WITH SHRTWV TROF. OUR HI RES WRF MODEL INDICATES ISOLD TO SCT TSTM DEVELOPMENT MAINLY AHEAD OF FRONT LATE THIS EVE/OVERNIGHT TNGT...HOWEVER...WOULD NOT BE SURPRISED TO SEE SCT CELLS DEVELOP AHEAD OF TROF LATE THIS AFTN/EARLY EVE WITH VERY UNSTABLE AIR TO TAP INTO...PROVIDED MID LEVEL CAP CAN BE BROKEN. GIVEN DEVELOPMENT... SOME STORMS COULD BECOME SVR WITH UNIDIRECTIONAL SPEED SHEAR IN PLACE...WHICH WOULD RESULT IN PRIMARILY A LINEAR MODE OF CONVECTION. THIS SEEN UPSTREAM ATTM ACROSS CENTRAL INDIANA INTO SRN IL. EXPECTING FRONT TO REACH OUR S/SE COUNTIES AFTER MIDNIGHT. WILL INSERT A LO CHC POP THERE TNGT...THOUGH INSTABILITY WIL BE ON THE WANE. WIL KEEP A HIER POP (30) FOR OUR NRN FA. ANY STORM CHC WILL END WITH FROPA WELL BEFORE DAWN FRI. THEN SOMEWHAT COOLER TEMPS AND A TAD DRIER AMS WILL ARRIVE FRI...RESULTING IN HEAT INDICES FROM 95 TO 100 UNDER MOSTLY SUNNY SKIES. KIRKPATRICK .LONG TERM (FRI NIGHT THROUGH THURSDAY)... FRIDAY NIGHT THROUGH SUNDAY NIGHT... NO MAJOR CHANGES TO EXTENDED FORECAST AT THIS TIME. HIGH PRESSURE SYSTEM...RIDGE IN CENTRAL US...AND HIGH TEMPERATURES STILL DOMINANT. PRECIPITATION IS NOT EXPECTED THROUGH SUNDAY NIGHT. LITTLE RELIEF FROM THE HEAT AND HUMIDITY...ONLY A SLGT DROP IN THE MAX TEMPERATURES INTO THE LOW AND MID 90S SAT. MAX TEMPERATURES WILL CONTINUE TO RISE THROUGH THE WEEKEND...BY SUNDAY IT SHOULD BE BACK UP IN THE UPPER 90S. HEAT INDICES WILL ALSO REACH 100S THROUGH MOST OF REGION ON SUNDAY AFTERNOON.--MB MONDAY THROUGH THURSDAY... NOT MUCH CHANGED IN THE WAY OF TEMPERATURES THROUGH THE PERIOD. RIDGE THROUGH THE CENTRAL US IS STILL DOMINANT...SO TEMPERATURES WILL REMAIN IN THE 90S. HOWEVER...HIGH PRESSURE WILL MOVE CLOSER AND EVENTUALLY BECOME CENTERED OVER THE REGION...WHICH COULD BRING EVEN HIGHER TEMPERATURES BY MID WEEK. THE GFS IS NOW SHOWING 24-25 DEGREES CELSIUS AT 850MB FROM 00Z THROUGH 12Z ON THURSDAY...WHICH IS EVEN HIGHER THAN WHAT THE PREVIOUS FORECASTER STATED. TEMPERATURES COULD THEN REACH WELL OVER 100...WHICH IS SOMETHING WE WILL KEEP WATCHING. BUT STILL GOING WITH UPPER 90S THROUGH THIS TIME BECAUSE I THINK THE GFS AND OTHER MODELS COULD BE OVERDOING IT. STILL SEEING SHORTWAVES DEVELOPING AND MOVING THROUGH THE REGION...AND PRODUCING A NORTHWESTERLY FLOW ALOFT...BUT WILL KEEP A DRY FORECAST JUST AS THE PREVIOUS FORECASTER DID. --MB && .LMK WATCHES/WARNINGS/ADVISORIES... KY...HEAT ADVISORY FOR CENTRAL KENTUCKY TIL 8 PM EDT TDA. IN...HEAT ADVISORY FOR SOUTHERN INDIANA TIL 8 PM EDT TDA. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 400 PM EDT THU AUG 9 2007 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-100830- ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN- CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY- BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY- JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY- SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY- FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY- MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY- GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY- TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY- ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY- CUMBERLAND KY-CLINTON KY- 400 PM EDT (300 PM CDT) THU AUG 9 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...LATE THIS AFTERNOON AND TONIGHT. VERY HOT AND HUMID CONDITIONS WILL CONTINUE ACROSS THE OUTLOOK AREA INTO EARLY THIS EVENING WITH HEAT INDEX READINGS RANGING FROM 104 TO 112 THROUGH 8 PM EDT. SPEND AS MUCH TIME IN AIR CONDITIONING AS POSSIBLE...BUT IF YOU ARE OUT...DRINK PLENTY OF WATER DRINK WATER EVEN IF YOU DO NOT YET FEEL THIRSTY. ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS SOUTH CENTRAL INDIANA...NORTH CENTRAL KENTUCKY AND PARTS OF EAST CENTRAL KENTUCKY LATE THIS AFTERNOON INTO TONIGHT AS A WEAK COLD FRONT DROPS SOUTH INTO THE REGION. A FEW STORMS COULD BECOME SEVERE...ESPECIALLY ACROSS SOUTHERN INDIANA WITH THE MAIN THREATS BEING DAMAGING WINDS...LARGE HAIL AND EXCESSIVE LIGHTNING. ALL STORMS WILL PRODUCE BRIEF HEAVY RAINS. ISOLATED THUNDERSTORMS WILL DROP SOUTHEAST INTO SOUTH CENTRAL KENTUCKY LATE THIS EVENING AND END BEFORE DAWN FRIDAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HEAT INDICES WILL LIKELY TOP 100 ON SUNDAY AS TEMPERATURES REACH THE MID AND UPPER 90S. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT HIGH TEMPERATURES LATE THIS AFTERNOON AND TO BE ON THE LOOKOUT FOR POTENTIAL SEVERE STORMS ACROSS THE NORTHERN HALF OF THE OUTLOOK AREA. KIRKPATRICK
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 305 PM EDT THU AUG 9 2007 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-092100- ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN- CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY- BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY- JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY- SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY- FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY- MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY- GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY- TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY- ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY- CUMBERLAND KY-CLINTON KY- INCLUDING THE CITIES OF...PAOLI...SALEM...SCOTTSBURG...MADISON... JASPER...MARENGO...TELL CITY...CORYDON...NEW ALBANY... JEFFERSONVILLE...HAWESVILLE...HARDINSBURG...BRANDENBURG... BEAVER DAM...LEITCHFIELD...ELIZABETHTOWN...FORT KNOX... MOUNT WASHINGTON...SHEPHERDSVILLE...LOUISVILLE...LA GRANGE... BEDFORD...NEW CASTLE...SHELBYVILLE...FRANKFORT...GEORGETOWN... CYNTHIANA...TAYLORSVILLE...LAWRENCEBURG...VERSAILLES... LEXINGTON...PARIS...CARLISLE...BARDSTOWN...SPRINGFIELD... HARRODSBURG...NICHOLASVILLE...WINCHESTER...HODGENVILLE... LEBANON...DANVILLE...LANCASTER...RICHMOND...MORGANTOWN... BROWNSVILLE...MUNFORDVILLE...GREENSBURG...CAMPBELLSVILLE... LIBERTY...STANFORD...RUSSELLVILLE...BOWLING GREEN...FRANKLIN... SCOTTSVILLE...GLASGOW...TOMPKINSVILLE...EDMONTON...COLUMBIA... JAMESTOWN...BURKESVILLE...ALBANY 305 PM EDT (205 PM CDT) THU AUG 9 2007 ...HEAT ADVISORY THROUGH 800 PM EDT... A HEAT ADVISORY CONTINUES FOR SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY THROUGH 8 PM EDT. THE FOLLOWING ARE 3 PM EDT TEMPERATURES AND HEAT INDICES FOR LOCATIONS WITHIN THE ADVISORY AREA: LOUISVILLE INTERNATIONAL AIRPORT. TEMPERATURE 101...HEAT INDEX 106. LOUISVILLE NATIONAL WEATHER SERVICE. TEMPERATURE 98...HEAT INDEX 102. BOWLING GREEN. TEMPERATURE 101...HEAT INDEX 104. HUNTINGBURG INDIANA. TEMPERATURE 97...HEAT INDEX 110. FORT KNOX. TEMPERATURE 97...HEAT INDEX 107. LEXINGTON BLUEGRASS FIELD. TEMPERATURE 97...HEAT INDEX 103. FRANKFORT. TEMPERATURE 98...HEAT INDEX 103. IF OUTSIDE THIS AFTERNOON... SLOW DOWN. AVOID STRENUOUS ACTIVITIES. WEAR LIGHTWEIGHT LIGHT-COLORED CLOTHING. FOODS...SUCH AS PROTEINS...THAT INCREASE METABOLIC HEAT PRODUCTION AND WATER LOSS SHOULD BE AVOIDED. DRINK PLENTY OF WATER. DRINK WATER EVEN IF YOU DO NOT YET FEEL THIRSTY. AVOID ALCOHOLIC BEVERAGES. DO NOT INCREASE YOUR SALT INTAKE UNLESS DIRECTED BY A PHYSICIAN. STAY OUT OF THE SUN AS MUCH AS POSSIBLE. SUNBURN WILL MAKE IT THAT MUCH MORE DIFFICULT FOR YOUR BODY TO DISSIPATE HEAT. WHEN SPENDING TIME IN THE SUN...USE A SUNSCREEN WITH A HIGH SPF. IF SUFFERING SYMPTOMS OF HEAT EXHAUSTION OR HEAT STROKE GET MEDICAL ATTENTION IMMEDIATELY. KIRKPATRICK
The Louisville radar (KLVX), 25 km away, was scanning. The volume nearest the first event began at 00:00 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm wind damage was reported midway between Corydon and Central on state highway 135. A plate glass picture window was blown out of a house, and a home air conditioning unit was blown off its base. Twenty trees were downed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2007Every state in 2007This day in weather historyWarnings in Indiana, August 2007
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: 49092.