Severe thunderstorms brought flooding and tree damage, building, and powerline damage to portions of eastern Kentucky on September 11, 2010. The worst of the flooding actually occurred in the normally flood resistent Pulaski county.
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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 JKL wrote it up.
Severe thunderstorms brought flooding and tree damage, building, and powerline damage to portions of eastern Kentucky on September 11, 2010. The worst of the flooding actually occurred in the normally flood resistent Pulaski county. As many as five inches of rain fell in the Somerset area with numerous streets flooded due to the heavy rainfall. Numerous trees were blown down in near the Wayne county hospital in Monticello.
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 Jackson, KY wrote its last area forecast discussion before the first event at Sep 11, 12:41 AM EST, 49 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON KY 141 AM EDT SAT SEP 11 2010 .SHORT TERM.../TONIGHT THROUGH SUNDAY/ THE WEAK REMNANT LOW WHICH WAS ONCE TROPICAL STORM HERMINE WILL BE CROSSING THE AREA TONIGHT. ASSOCIATED SHOWERS OVER SOUTH CENTRAL KY ARE SLOWLY SHIFTING EAST. HAVE MAINTAINED LIKELY POPS ACROSS OUR SOUTHERN COUNTIES FOR THIS...BUT HAVE TUNED THE TIMING. THESE SHOWERS SHOULD BE WEAKENING AND EXITING TO THE EAST EARLY SATURDAY. WILL LOOK FOR BIT OF A LULL BEFORE CONVECTION REDEVELOPS ON SATURDAY AFTERNOON AHEAD OF A COLD FRONT. 18Z MODEL RUNS CONTINUED TO SHOW THIS PRECIP LARGELY OUT OF THE AREA BY SUNDAY...AND HAVE FURTHER DECREASED REMAINING POPS IN OUR EASTERN COUNTIES FOR SUNDAY. THE PREVIOUS SHORT TERM FORECAST DISCUSSION FOLLOWS... /TONIGHT THROUGH SUNDAY NIGHT/ TWO ISSUES TO DEAL WITH FOR THE PERIOD...THE FIRST OF WHICH IS WITH REGARDS TO T.S. HERMINE REMNANTS AND IS ALREADY UNDERWAY. SHOWERS ASSOCIATED WITH THE SYSTEM ARE CURRENTLY MAKING THEIR WAY ACROSS SOUTH CENTRAL AND SOUTHEASTERN KENTUCKY AND HAVE BEEN MAINTAINING THEIR STRENGTH OR WEAKENING SLIGHTLY AS THEY BEGIN TO MOVE INTO WEST VIRGINIA. HOWEVER...LATEST SFC ANALYSIS SHOWS A WARM FRONT SITUATED TO OUR SOUTHWEST STEMMING FROM AN AREA OF DEVELOPING LOW PRESSURE OVER KANSAS. SOME HEAVIER SHOWERS ALONG WITH A FEW EMBEDDED THUNDERSTORMS HAVE BEEN DEVELOPING OVER THE TN VALLEY AS THIS FRONT HAS BEGUN TO SHIFT NORTH AND CONTINUES TO INTERACT WITH ENERGY AND MOISTURE FROM HERMINE/S REMNANTS. THINKING THAT LIGHT PRECIP WILL CONTINUE THROUGH THE EVENING AND EARLY OVERNIGHT HOURS BEFORE BECOMING MORE ISOLATED BY SUNRISE ON SATURDAY. SECOND ISSUE FOR THE PERIOD CENTERS AROUND A DEVELOPING LOW/TROF OVER THE NRN PLAINS WHICH IS EXPECTED TO DRAG A COLD FRONT THROUGH THE COMMONWEALTH LATE ON SATURDAY AND INTO SUNDAY...BRINGING ANOTHER ROUND OF SOLID CHANCES FOR THUNDERSTORMS TO THE CWA. THERE ARE MIXED SIGNALS FROM THE GUIDANCE AS TO WHETHER OR NOT THERE IS A LEGITIMATE RISK OF SEVERE STORMS DEVELOPING...BUT THE MAIN THREATS WITH THE STORMS ON SATURDAY WOULD BE MARGINALLY SEVERE WIND GUSTS WITH THE PASSAGE OF THE FRONT...ALONG WITH SOME LOCALIZED HEAVY RAINFALL WITH ANY TRAINING STORMS. THE MAIN QUESTION WITH REGARDS TO THE SEVERE THREAT WITH THIS SYSTEM IS WHETHER OR NOT WE CAN CLEAR OUT ANY OF THE CLOUD COVERAGE FROM THE REMNANTS OF HERMINE AND DESTABILIZE BEFORE THE WARM FRONT ARRIVES LATE SATURDAY MORNING AND INTO THE AFTERNOON. IF WE CAN GET SOME GOOD SURFACE HEATING IN...THEN THE INSTABILITY WHICH IS SHOWING UP IN THE MORE AGGRESSIVE MODEL SOLUTIONS MAY BE REALIZED. THE SYSTEM LOOKS PROGRESSIVE ENOUGH THAT WITH THE LACK OF RAIN OVER THE LAST COUPLE OF WEEKS MOST AREAS SHOULD NOT HAVE ANY TROUBLE WITH THE PROJECTED 1 TO 2 INCHES. AGAIN...THE MORE AGGRESSIVE GUIDANCE SUGGESTS THAT UP TO 3 TO 4 INCHES LOCALLY COULD BE REALIZED...SO THIS WILL DEFINITELY NEED TO BE MONITORED CLOSELY TOMORROW AFTERNOON AND EVENING AS THIS MUCH PRECIP MAY LEAD TO SOME HYDRO ISSUES. DESPITE THE DIFFERENCES...MODELS GENERALLY AGREE THAT THE COLD FRONT WILL PUSH THROUGH THE COMMONWEALTH AND INTO VIRGINIA AND WEST VIRGINIA BY 12Z SUNDAY...WITH PRECIP LINGERING OVER THE EASTERNMOST COUNTIES OF KENTUCKY THROUGH THE AFTERNOON ON SUNDAY AS HIGH PRESSURE BEGINS BUILDING INTO THE REGION...BRINGING ANOTHER ROUND OF COOLER AND DRIER WEATHER. AS FOR TEMPERATURES...FOLLOWED A BLEND OF THE LATEST MAV AND MET MOS NUMBERS WHICH ENDS QUITE CLOSE TO THE INHERITED TEMPS AND IS CLOSE TO OUR SEASONAL NORMS OF ABOUT 80 AND 60 FOR HIGHS AND LOWS...STAYING A LITTLE COOLER ON SATURDAY WITH THE EXPECTED RAINS AND COOLER STILL ON SUNDAY BEHIND THE FRONT. .LONG TERM.../MONDAY THROUGH FRIDAY/ MODELS IN GOOD AGREEMENT WITH OVERALL LONG WAVE PATTERN IN THE MEDIUM TO LONG TERM PART OF THE FORECAST WITH SHALLOW TROFFING IN THE EASTERN UNITED STATES FOR MOST OF NEXT WEEK. ALSO GOOD AGREEMENT THAT COLD FRONT FORECAST TO DROP INTO THE OHIO VALLEY MONDAY INTO TUESDAY SHOULD BE DRY. AS SUCH WILL GO WITH A DRY FORECAST THROUGH WEDNESDAY NIGHT. A MORE SIGNIFICANT MID/UPPER LEVEL SHORT WAVE TROF AND ASSOCIATED SURFACE LOW AND FRONTS WILL AFFECT THE AREA LATE NEXT WEEK. THIS FAR OUT THE TIMING ON THIS IS IN QUESTION. THE 12Z GFS HAS TRENDED SLOWER THAN PREVIOUS GFS RUNS...AND IS SLOWER THAN THE 00Z ECMWF. AS FOR WHEN TO INTRODUCE A CHANCE OF PRECIPITATION IN THE FORECAST HAVE LEANED TOWARDS THE LATEST GFS ENSEMBLE MEANS AND HPC. THE GFS ENSEMBLES POINT TOWARDS A SLIGHTLY QUICKER SOLUTION THAN THE 12Z GFS RUN. FOLLOWING THIS THINKING WILL INTRODUCE A 20 PERCENT CHANCE OF RAIN FOR THURSDAY...AND THEN INCREASE THIS TO 30 PERCENT FOR THURSDAY NIGHT AND FRIDAY. THIS WILL BE IN GOOD AGREEMENT WITH OUR NEIGHBORING WFOS. TEMPERATURES SHOULD BE FAIRLY CLOSE TO NORMAL FOR MOST OF THE PERIOD. && .AVIATION.../06Z TO 06Z/...UPDATED SCATTERED TO NUMEROUS SHOWERS WILL BE A THREAT OFF AND ON THROUGHOUT THE ENTIRE PERIOD WITH A THREAT OF SCATTERED THUNDERSTORMS LATER THIS AFTERNOON. THE REMNANTS OF HERMINE ARE CURRENTLY MOVING ACROSS THE AREA. AS THIS LOW MOVES TO THE EAST...A WEAK BOUNDARY WILL REMAIN ACROSS THE AREA AND THE THREAT FOR SHOWERS WILL CONTINUE. A FAIRLY STRONG COLD FRONT IS EXPECT TO MOVE ACROSS THE AREA DURING THE AFTERNOON AND EVENING. AS THE FRONT NEARS THIS AFTERNOON...THE POTENTIAL FOR THUNDERSTORMS WILL INCREASE. IN GENERAL...IT WILL BE MOSTLY VFR CONDITIONS WITH TEMPO IFR CONDITIONS IN THE VICINITY OF THE HEAVIER SHOWERS AND THUNDERSTORMS. FOG SHOULD FORM BEHIND THE FRONT TONIGHT...HOWEVER IT SHOULD STAY MVFR UNTIL AFTER 6Z. && .JKL WATCHES/WARNINGS/ADVISORIES...NONE. && SHORT TERM...MB/HAL LONG TERM....SBH AVIATION...JJ
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON KY 355 PM EDT FRI SEP 10 2010 KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-111100- FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE- JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN- ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT- OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE- 355 PM EDT FRI SEP 10 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THUNDERSTORMS ARE POSSIBLE SATURDAY AS A COLD FRONT PUSHES THROUGH THE AREA. A FEW STORMS COULD BECOME STRONG...AND PRODUCE GUSTY WINDS AND BRIEF HEAVY RAINFALL. STORMS THAT MOVE REPEATEDLY OVER THE SAME LOCATION MAY CAUSE SOME DITCHES AND LOW WATER CROSSINGS TO RUN FULL. THE THREAT OF THUNDERSTORMS WILL LINGER INTO SATURDAY NIGHT. THUNDERSTORMS ARE POSSIBLE AGAIN THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ARE ENCOURAGED TO REPORT ANY GUSTY WINDS OR HEAVY RAINFALL SATURDAY. JJ/RAY
The Jackson,KY radar (KJKL), 133 km away, was scanning. The volume nearest the first event began at 06:31 UTC.
7 thunderstorm wind, 4 flood, 2 flash flood, 1 heavy rain. Local standard time, as filed.
Water was covering the north bound lanes of US 27 near Garland Road. The depth of the water was unknown.
Langdon Street on Monticello Road was flooded.
Water was measured up to the door handles of automobiles in and around Somerset including on Kit Cowan Rd, Kennedy St, Kentucky Ave, and Oak View Drive.
A member of the public measured 5 inches of rainfall in Somerset.
Bacon Creek Road was closed. It was reopened later in the morning.
A vehicle was surrounded by rising water along Summit Point Drive near West KY Hwy 80.
High was water was reported inside buildings in Nancy.
Several large branches were blown down on Slant Branch Road.
One tree was blown down on White Oak Road.
Multiple trees were blown down outside the Wayne County Hospital.
A tin roof was partially blown off of a barn near the intersection of Tomcat Trail and Hwy 80E.
A tree that was blown down by thunderstorm wind gusts fell onto and downed a power line on Danger Branch Road off of KY Hwy 1482.
A volunteer weather observer reported that approximately 20 tree limbs had been blown down in his yard. Four of the limbs measured 6 inches in diameter.
A tree was blown down and onto a home in Trosper off of KY Hwy 225.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2010Every state in 2010This day in weather historyWarnings in Kentucky, September 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: 260470, 260471, 260472, 260476, 260473, 260474, 260475, 260479, 260478, 260480, 260481, 260482, 260477, 260483.