A frontal boundary extending east from southern Missouri provide a focus for moisture convergence and thunderstorm development across central Kentucky. Ample moisture with precipitable water amounts of near 2 inches and light winds aloft led to scattered slow moving afternoon thunderstorms and localized heavy rainfall.
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The episode as NWS LMK wrote it up.
A frontal boundary extending east from southern Missouri provide a focus for moisture convergence and thunderstorm development across central Kentucky. Ample moisture with precipitable water amounts of near 2 inches and light winds aloft led to scattered slow moving afternoon thunderstorms and localized 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 Aug 9, 1:01 PM CST, 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 301 PM EDT Sat Aug 9 2014 .SHORT TERM (Now through Sunday Night)... Issued at 257 PM EDT Sat Aug 9 2014 A surface low is sprawled across western KY this afternoon. A weak frontal boundary remains nearly stationary across central Kentucky just to the south of Louisville and Lexington. Scattered to numerous showers and thunderstorms have developed once again this afternoon with the daytime heating. Currently the only lightning is in a cluster of storms from Bowling Green west. However, the potential remains for storms across the area in the modestly unstable environment. With precipitable water values around 1.8-1.9 inches the biggest threat this afternoon will be from heavy rainfall in slow moving or training storms causing ponding of water. Will continue to monitor the storms for this potential this afternoon and evening. The diurnally driven precipitation is expected to wane this evening. However, given the boundaries in the area and the atmosphere remaining unstable, will hold on to a slight chance for precip overnight. With ample low level moisture and light to calm winds overnight, some patchy fog may develop after midnight. Have added this in to the grids for the 6-12Z time frame. The surface low will continue to slowly work its way eastward tomorrow. We will again see showers and thunderstorms develop during the late morning to afternoon. The best chance for storms tomorrow will be east of I-65. Precip chances will once again then diminish tomorrow night. .LONG TERM (Monday through Saturday)... Issued at 300 PM EDT Sat Aug 9 2014 A strong upper trof will dig through the Great Lakes Monday and Tuesday and then progress into the Northeast for the rest of the long term. The trof axis will swing across the Ohio Valley Tuesday evening. At the surface low pressure will remain in the vicinity of the Ohio Valley until pulling off to the northeast Tuesday night with the upper trof. Showers and thunderstorms will be possible with these features, especially on Monday when there will be a much better moisture supply than on Tuesday. High pressure will then move from the Plains through the Ohio and Tennessee Valleys to the southeast US through the remainder of the forecast period, resulting in a dry forecast. Could see some fog, especially in eastern valleys, Wednesday and Thursday mornings. Some showers and storms may approach us from the west Friday and Saturday thanks to a storm system over the Plains, but with low confidence and sub-CLIMO PoPs will keep those days rain-free for now. Wednesday will be the coolest day of the week with highs right around 80. Lows each morning should be in the 60s, with some 50s possible Thursday morning. && .AVIATION (18Z TAF Update)... Issued at 110 PM EDT Sat Aug 9 2014 After a lull in precipitation coverage during the late morning, showers are beginning to develop once again across central Kentucky. These will affect the terminals through the afternoon hours. Will continue to carry VCTS at all sites this afternoon as plenty of instability will lead to scattered thunderstorms. Will go with prevailing VFR visibilities. However, any shower or storm that crosses a terminal will quickly drop the vis to MVFR or IFR. Ceilings continue to be a challenge this afternoon. They should rise and become VFR at all sites by late afternoon to early evening. With plenty of low level moisture still in the area and winds becoming light again overnight, expect that light fog will form again. Also expect that a stratus deck will develop. Have brought ceilings down to low end MVFR towards dawn tomorrow. There is, however, the potential for IFR cigs as happened this morning. Conditions should start to improve by mid to late morning. && .LMK WATCHES/WARNINGS/ADVISORIES... KY...NONE. IN...NONE. && Short Term........EER Long Term.........13 Aviation..........EER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 1141 AM EDT SAT AUG 9 2014 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-101545- 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 1141 AM EDT SAT AUG 9 2014 /1041 AM CDT SAT AUG 9 2014/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS ARE FORECAST THIS AFTERNOON AND TONIGHT AHEAD OF A DISTURBANCE MOVING INTO KENTUCKY. THE MAIN THREATS FROM ANY THUNDERSTORMS WILL BE LIGHTNING AND LOCALLY HEAVY DOWNPOURS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. SCATTERED TO AT TIMES NUMEROUS STORMS WILL PERSIST SUNDAY THROUGH TUESDAY IN AN UNSETTLED PATTERN. THE BEST COVERAGE WILL BE EAST OF I-65. THE MAIN THREATS WITH THIS ACTIVITY WILL BE LIGHTNING AND HEAVY RAINFALL. IF STORMS ARE ABLE TO TRAIN OVER THE SAME AREAS...SOME LOCALIZED MINOR FLOODING WILL BE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. && MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION CAN BE FOUND...AT WEATHER.GOV/LOUISVILLE. BJS/RJS/EER
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 316 PM EDT SAT AUG 9 2014 KYZ061-062-070>074-092045- BUTLER KY-EDMONSON KY-LOGAN KY-WARREN KY-SIMPSON KY-ALLEN KY- BARREN KY- INCLUDING THE CITIES OF...MORGANTOWN...BROWNSVILLE... RUSSELLVILLE...BOWLING GREEN...FRANKLIN...SCOTTSVILLE...GLASGOW 216 PM CDT SAT AUG 9 2014 ...THUNDERSTORMS WITH TORRENTIAL RAIN IN THE BOWLING GREEN REGION... THUNDERSTORMS HAVE DEVELOPED THIS AFTERNOON IN AND AROUND THE BOWLING GREEN AND MAMMOTH CAVE AREAS. THESE STORMS HAVE BEEN PRODUCING LOCALLY TORRENTIAL RAINS CAUSING REDUCTIONS IN VISIBILITY AND POOLING OF WATER ON ROADWAYS AND LOW SPOTS THAT COLLECT WATER EASILY. SLOW DOWN AND TURN ON YOUR LOW BEAM HEADLIGHTS IF DRIVING THROUGH THESE HEAVY DOWNPOURS. LEAVE PLENTY OF ROOM BETWEEN VEHICLES SINCE STOPPING DISTANCE WILL BE GREATLY INCREASED ON THE SOAKED ROADWAYS. 13
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
A spotter reported minor flooding of East 10th Ave in Bowling Green. Standing water also impeded traffic on Center Street near downtown.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2014Every state in 2014This day in weather historyWarnings in Kentucky, August 2014
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: 526665.