Diurnally induced thunderstorms developed along outflow boundaries produced by overnight thunderstorms. These storms moved slowly and produced flash flooding from heavy rainfall.
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.
Diurnally induced thunderstorms developed along outflow boundaries produced by overnight thunderstorms. These storms moved slowly and produced flash flooding from heavy rainfall.
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 Jun 26, 1:44 AM EST, 1 hour 39 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 244 AM EDT FRI JUN 26 2009 .SHORT TERM (TODAY AND TONIGHT)... UPPER LEVEL LOW LOCATED OVER SOUTHEAST CANADA AT 07Z WILL MOVE INTO THE NORTHEAST UNITED STATS TODAY. THIS SYSTEM WILL PULL A WEAK COOL FRONT INTO THE LOWER OHIO VALLEY TODAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AHEAD OF THE FRONT ESPECIALLY ACROSS THE NORTHEAST PORTION OF THE FORECAST AREA THIS MORNING. STORMS CURRENTLY MOVING INTO THAT REGION WILL BE CAPABLE OF PRODUCING GUSTY WINDS AND SMALL HAIL BUT THE MAIN ISSUE WILL BE THE POTENTIALLY FOR VERY HEAVY RAIN IN A SHORT PERIOD OF TIME AND CONTINUOUS CLOUD TO GROUND LIGHTNING. THIS CURRENT CLUSTER OF STORMS WILL MOVE SOUTHEAST OF THE REGION BY 12Z. SCATTERED STORMS WILL CONTINUE BE POSSIBLE TODAY WITH A SLIGHTLY BETTER CHANCE ACROSS THE SOUTH DURING THE AFTERNOON. AS THE FRONT DROPS SOUTH TO THE TENNESSEE BORDER TONIGHT THE PRECIPITATION WILL END. TEMPERATURES TODAY SHOULD BE A DEGREE OR TWO COOLER THAN THURSDAY BUT HUMIDITY LEVELS WILL REMAIN HIGH. LOWS TONIGHT WILL FALL INTO THE UPPER 60S AND LOWER 70S. .LONG TERM (SATURDAY THROUGH THURSDAY)... THE STRONG PERSISTENT RIDGE AT 500MB DOMINATING THE SOUTHERN AND CENTRAL PLAINS FOR THE PAST SEVERAL DAYS WILL BREAK DOWN AND RETROGRADE TOWARDS THE ROCKIES BEGINNING LATE SATURDAY. THIS PATTERN CHANGE WILL BRING COOLER AND LESS HUMID AIR TO THE REGION BEGINNING LATE SUNDAY. UPPER AIR FLOW SATURDAY WILL FEATURE A DEEP TROUGH ACROSS NEW ENGLAND...A TEMPORARY PROGRESSIVE RIDGE ACROSS THE LOWER OHIO VALLEY...AND A DIGGING TROUGH ACROSS THE UPPER MIDWEST. THIS TEMPORARY RIDGE WILL BRING MOSTLY SUNNY SKIES AND WARM TEMPS SATURDAY. BY EARLY SUNDAY THE CORE OF THE 500MB TROUGH IS FORECAST TO LIE NORTH OF MINNESOTA. LOW PRESSURE WILL MOVE ACROSS THE GREAT LAKES EARLY SUNDAY AND BECOME VERTICALLY STACKED WITH ITS PARENT 500MB TROUGH OVER MICHIGAN BY SUNDAY AFTERNOON. A COLD FRONT WILL DROP SOUTH ACROSS SOUTHERN INDIANA DURING THE MORNING HOURS SUNDAY...EXITING KENTUCKY BY EVENING. BOTH THE GFS AND THE NAM BRING VERY HIGH PRECIPITABLE WATER VALUES OF JUST UNDER 2 INCHES AHEAD OF THIS FRONT. WIDESPREAD CONVECTION WILL LIKELY ACCOMPANY THIS FRONT SATURDAY EVENING ACROSS NORTHERN ILLINOIS AND INDIANA...POSSIBLY WEAKENING AS THIS BOUNDARY MOVES INTO SOUTHERN INDIANA DURING THE MORNING HOURS. DEPENDING ON THE TIMING OF THIS FRONT AND ANY SURFACE BASED INSTABILITY THAT DEVELOPS SUNDAY AHEAD OF THIS FEATURE...THUNDERSTORM COVERAGE WILL LIKELY INCREASE AGAIN BY LATE MORNING OR EARLY AFTERNOON SOMEWHERE SOUTH OF THE OHIO RIVER. WILL CONTINUE 50% POPS FOR SOUTHERN INDIANA EARLY SUNDAY OVERSPREADING THE ENTIRE CWA BY LATE AFTERNOON. IF SUFFICIENT CAPE CAN DEVELOP SUNDAY SOME STORMS MAY BECOME STRONG WITH GUSTY WINDS. LOCALIZED HEAVY RAINS WILL ALSO BE POSSIBLE. THE ECMWF AND THE GFS BOTH AGREE THAT THE 500MB UPPER LOW WILL CUT OFF AND STALL OVER THE GREAT LAKES BEGINNING SUNDAY. A REX BLOCK WILL DEVELOP ACROSS EASTERN NORTH AMERICA EARLY NEXT WEEK WITH THIS GREAT LAKES UPPER LOW REMAINING NEARLY STATIONARY SOUTH OF A BUILDING RIDGE OVER NEWFOUNDLAND. IN FACT THE ECMWF MOVES THIS UPPER LOW FROM NEAR MICHIGAN MONDAY ONLY TO PENNSYLVANIA BY LATE WEDNESDAY. EARLY NEXT WEEK WILL BE QUITE COOL ACROSS THE GREAT LAKES. THIS BLOCKING PATTERN WILL BRING DISTINCTLY COOLER AND LESS HUMID AIR SUNDAY THROUGH MONDAY TO THE AREA. FORECAST DEW POINTS DIP INTO THE UPPER 50S LATE MONDAY AS NORTHWEST WINDS BRING IN DRIER CANADIAN AIR. EXPECT HIGHS IN THE LOWER TO MID 80S EARLY NEXT WEEK WITH LOWS WELL DOWN INTO THE 60S. BY LATE WEDNESDAY...THE ECMWF AND THE GFS DIFFER IN THE SPEED THAT THIS CUT OFF 500MB LOW DRIFTS OFF TO THE EAST. THE SLOWER ECMWF MAINTAINS THE COOLING INFLUENCE THROUGH WEDNESDAY WHILE THE FASTER GFS FORECASTS A WARM UP LATE TUESDAY. WILL COMPROMISE BETWEEN THESE TWO SOLUTIONS WITH TEMPERATURES FROM WEDNESDAY ON. AFTER SUNDAYS CONVECTION...SEVERAL DRY DAYS ARE EXPECTED THROUGH THE MIDDLE OF NEXT WEEK. && .AVIATION (06Z TAFS)... THUNDERSTORMS ACROSS SOUTHERN INDIANA AND OHIO ARE AHEAD OF A WEAK COOL FRONT THAT WILL DROP INTO CENTRAL KENTUCKY THIS AFTERNOON BEFORE SHIFTING NORTH SATURDAY MORNING. THE STORMS WILL MAINLY AFFECT THE SDF AND LEX TAF SITES THIS MORNING WITH A BETTER CHANCE OF STORMS ACROSS THE SOUTH DURING THE AFTERNOON. SOUTHWEST FLOW AHEAD OF THE FRONT SHOULD KEEP VSBYS IN THE VFR RANGE THIS MORNING. && .LMK WATCHES/WARNINGS/ADVISORIES... KY...NONE. IN...NONE. && SHORT TERM...JA LONG TERM....JSD AVIATION.....JA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 316 AM EDT FRI JUN 26 2009 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-270730- 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- 316 AM EDT FRI JUN 26 2009 /216 AM CDT FRI JUN 26 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...TODAY AND TONIGHT. NUMEROUS THUNDERSTORMS WILL MOVE ACROSS SOUTH CENTRAL INDIANA AND THE NORTHERN PORTION OF CENTRAL KENTUCKY EARLY THIS MORNING. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH... DANGEROUS CLOUD TO GROUND LIGHTNING... A PERIOD OF VERY HEAVY RAIN AND POSSIBLY SOME SMALL HAIL. ISOLATED TO SCATTERED THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE LATE TODAY AND THIS EVENING ESPECIALLY ACROSS SOUTH CENTRAL KENTUCKY. GUSTY WINDS... DANGEROUS LIGHTNING AND BRIEF HEAVY RAIN WILL BE THE MAIN THREAT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. A COLD FRONT IS FORECAST TO MOVE THROUGH THE REGION SATURDAY NIGHT INTO SUNDAY...BRINGING A ROUND OF SHOWERS AND THUNDERSTORMS TO THE OUTLOOK AREA. AT THIS TIME THE MAIN THREAT WITH THESE STORMS WILL BE HEAVY RAIN AND CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT INSTANCES OF HEAVY RAIN AND GUSTY WINDS THROUGH FRIDAY EVENING TO THE NATIONAL WEATHER SERVICE IN LOUISVILLE. JA/JSD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 311 AM EDT FRI JUN 26 2009 INZ076-083-084-089-090-KYZ024-025-260800- BRECKINRIDGE-CRAWFORD-DUBOIS-HARRISON-MEADE-ORANGE-PERRY- 311 AM EDT FRI JUN 26 2009 ...STRONG STORMS WILL MOVE SOUTHEAST ACROSS CRAWFORD...PERRY AND WESTERN HARRISON COUNTIES... AT 307 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES WEST OF ENGLISH...OR 38 MILES SOUTH OF BEDFORD...AND MOVING SOUTHEAST AT 35 MPH. FREQUENT DEADLY LIGHTNING...HEAVY RAIN WITH RAINFALL AMOUNTS OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE MILE...AND GUSTY WINDS OF AROUND 35 TO 40 MPH...ARE EXPECTED WITH THIS STORM. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/LOUISVILLE ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. && JSD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 338 AM EDT FRI JUN 26 2009 KYZ036-037-041>043-260815- BOURBON-FAYETTE-HARRISON-NICHOLAS-SCOTT- 338 AM EDT FRI JUN 26 2009 ...A LINE OF STRONG STORMS WITH EXTREMELY HEAVY RAIN WILL MOVE SOUTHEAST ACROSS THE EASTERN BLUEGRASS REGION... AT 335 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTH OF CARLISLE TO 12 MILES NORTHEAST OF FRANKFORT...OR ALONG A LINE EXTENDING FROM 16 MILES WEST OF FLEMINGSBURG TO 12 MILES NORTHEAST OF FRANKFORT...AND MOVING SOUTHEAST AT 35 MPH. FREQUENT DEADLY LIGHTNING...TORRENTIAL RAIN WITH RAINFALL AMOUNTS OF AROUND TWO INCHES PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE HALF MILE...AND STRONG GUSTY WINDS OF AROUND 45 TO 50 MPH...ARE EXPECTED WITH THESE STORMS. THESE STORMS WILL BE... NEAR CARLISLE AROUND 345 AM EDT. NEAR PARIS AROUND 355 AM EDT. NEAR LEXINGTON AROUND 415 AM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS EXPECTED. EXPECT PONDING OF WATER ON LOCAL ROADWAYS. DRIVERS SHOULD SLOW DOWN AND TURN ON THEIR HEADLIGHTS IF ENCOUNTERING HEAVY RAINS. && JSD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 351 AM EDT FRI JUN 26 2009 KYZ023>028-260830- BRECKINRIDGE-GRAYSON-HANCOCK-HARDIN-MEADE-OHIO- 251 AM CDT FRI JUN 26 2009 ...STRONG STORMS MOVING INTO WEST CENTRAL KENTUCKY... AT 348 AM EDT/248 AM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES EAST OF BRANDENBURG TO HAWESVILLE...OR ALONG A LINE EXTENDING FROM 24 MILES SOUTHWEST OF LOUISVILLE TO 14 MILES EAST OF ROCKPORT...AND MOVING SOUTHEAST AT 30 MPH. CONTINUOUS DEADLY CLOUD TO GROUND LIGHTNING...TORRENTIAL RAIN WITH RAINFALL AMOUNTS OF AROUND TWO INCHES PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE HALF MILE...SMALL PEA OR MARBLE SIZE HAIL...AND GUSTY WINDS OF AROUND 35 TO 40 MPH...ARE EXPECTED WITH THESE STORMS. THESE STORMS WILL BE... NEAR HARDINSBURG AROUND 255 AM CDT. NEAR ELIZABETHTOWN AROUND 405 AM EDT. THIS STORM WILL AFFECT THE WESTERN KENTUCKY (FORD) PARKWAY BETWEEN MILE MARKERS 123 AND 137. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/LOUISVILLE ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. && JA
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
408 AM EDT FRI JUN 26 2009
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION.. ST.. ...SOURCE....
..REMARKS..
0358 AM FLASH FLOOD NEW ALBANY 38.30N 85.83W
06/26/2009 FLOYD IN TRAINED SPOTTER
SEVERAL ROADS COVERED WITH WATER IN NEW ALBANY
&&
EVENT NUMBER LMK0900121
JDASPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 415 AM EDT FRI JUN 26 2009 KYZ041-042-048-049-057-260845- BOURBON-CLARK-FAYETTE-JESSAMINE-MADISON- 415 AM EDT FRI JUN 26 2009 ...A LINE OF STRONG STORMS WILL CROSS THE BLUEGRASS REGION INCLUDING LEXINGTON... AT 411 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTHEAST OF WINCHESTER TO 6 MILES SOUTHWEST OF VERSAILLES...OR ALONG A LINE EXTENDING FROM 9 MILES WEST OF MOUNT STERLING TO 15 MILES SOUTH OF FRANKFORT...AND MOVING SOUTHEAST AT 35 MPH. FREQUENT DEADLY LIGHTNING...TORRENTIAL RAIN WITH RAINFALL AMOUNTS OF AROUND TWO INCHES PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE HALF MILE...SMALL PEA OR MARBLE SIZE HAIL...AND STRONG GUSTY WINDS OF AROUND 45 TO 50 MPH...ARE EXPECTED WITH THESE STORMS. THESE STORMS WILL BE... NEAR WINCHESTER AROUND 420 AM EDT. NEAR NICHOLASVILLE AROUND 425 AM EDT. THESE STORMS WILL PRODUCE TORRENTIAL RAIN WITH UP TO ONE INCH OF RAIN FALLING IN A VERY SHORT TIME. EXPECT PONDING OF WATER ON ROADS AND QUICKLY RISING SMALL STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/LOUISVILLE ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. && JSD
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
420 AM EDT FRI JUN 26 2009
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION.. ST.. ...SOURCE....
..REMARKS..
0418 AM HEAVY RAIN NEW ALBANY 38.30N 85.83W
06/26/2009 M3.50 INCH FLOYD IN BROADCAST MEDIA
OVER 3 INCHES OR RAIN IN LESS THAN 2 HOURS THROUGH 415
AM EDT IN NORTHERN NEW ALBANY.
&&
EVENT NUMBER LMK0900122
JSDThe Louisville radar (KLVX), 33 km away, was scanning. The volume nearest the first event began at 08:24 UTC.
7 thunderstorm wind, 5 flash flood, 4 heavy rain. Local standard time, as filed.
A Metro Louisville rain gage measured 2.11 inches of rain near Shively in less than one hour.
A spotter measured 3.71 inches of rain in Paris.
Dispatch reported six inches of flowing water over HWY 70 at the Taylor and Casey County line. The road was becoming impassable.
Double Culvert was impassable with 6 to 8 inches of water over the roadway.
Two feet of water was covering Smith Ridge Road off of HWY 70.
Two feet of water was covering HWY 70 between Mannsville and Acton, making the road impassable.
Trees fell on a home and power lines were downed on Tebbs Ben Rd off HWY 55.
The Kentucky Mesonet site in Adiar County measured 1.51 inches of rain in 30 minutes.
Six to eight inches of water was covering Cane Valley Road between Cane Valley and Kellyville. Water was making roads impassable for most cars and causing several driveways to be impassable as well.
A tree fell across Martin Luther King Boulevard.
Trees were down on Bull Run Road just outside of Columbia.
Large limbs were down across State Road 768 and were blocking traffic.
Trees were downed across Bill Porter Road between Knob Lick and Savoyard.
A trained spotter measured 1.75 inches of rain in about 30 minutes in Peytonsburg. Some lowland flooding was occurring in fields and where creeks were running high.
Trees were downed one mile east of Peytonsburg as well as across south and southeastern parts of Cumberland County.
Trees were downed at Dale Hallow State Park, including one which fell on a tent.
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: 179238, 179240, 178923, 178925, 179605, 179609, 179613, 179242, 178929, 179616, 179623, 179619, 179633, 179243, 179626, 179628.