An MCS in Illinois produced an outflow boundary that moved southeastward into southern Indiana and eventually into the Bluegrass region of Kentucky. As this moved into a high instability environment storms developed and intensified as the reached the Bluegrass.
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.
An MCS in Illinois produced an outflow boundary that moved southeastward into southern Indiana and eventually into the Bluegrass region of Kentucky. As this moved into a high instability environment storms developed and intensified as the reached the Bluegrass. With a low shear environment the storms mainly produced damaging wind gusts. Training of storms also led to some localized flash flooding with a couple of roads closed across the region.
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 21, 12:05 PM EST, 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 105 PM EDT MON JUN 21 2010 ...UPDATED AVIATION DISCUSSION... ...FORECAST UPDATE #2... BASED ON LATEST RADAR IMAGERY...MCS IS HEADING SOUTHEAST TOWARD NORTHEAST KENTUCKY. THIS SYSTEM WILL AFFECT PRIMARILY OUR BLUEGRASS REGION THIS AFTERNOON. CURRENT THINKING IS AREAS ALONG AND EAST OF A LINE FROM SALEM INDIANA TO RICHMOND KENTUCKY WILL GET IN ON THE ACTION. TORRENTIAL RAINFALL...GUSTY WINDS AND INTENSE CLOUD TO GROUND LIGHTNING WILL ACCOMPANY THESE STORMS AS THEY HEAD SOUTHEAST. IN ADDITION...ANY TRAINING OF STORMS WILL LIKELY RESULT IN SOME HYDRO PROBLEMS. FLASH FLOOD POTENTIAL WILL BE HIGH ACROSS OUR BLUEGRASS REGION THIS AFTERNOON. WILL CONTINUE TO MONITOR HYDRO CLOSELY OVER THE NEXT SEVERAL HOURS. HAVE GONE AHEAD AND UPDATED POPS TO LIKELY ACROSS THE FAR NORTHEAST. ALSO LOWERED AFTERNOON TEMPS THIS AFTERNOON ACROSS THE FAR NORTHWEST GIVEN THE COOLING TREND DUE TO THUNDERSTORMS MOVING THROUGH THE REGION. ...FORECAST UPDATE... RADAR AND VIS SAT IMAGERY SHOWING WELL DEVELOPED MCS MOVING EASTWARD THROUGH CENTRAL IN AND INTO CENTRAL OH. WELL DEVELOPED OUTFLOW BOUNDARY IS SURGING SOUTHEASTWARD INTO SOUTHERN ILLINOIS AND SOUTHWEST INDIANA. A FEW CELLS HAVE GONE UP BEHIND THE OUTFLOW BOUNDARY...BUT HAVE NOT AMOUNTED TO MUCH...AS MAIN ACTIVITY IS ROOTED ALONG THE I-70 CORRIDOR. TEMPERATURES ACROSS THE REGION HAVE WARMED INTO THE MID TO UPPER 80S WITH KSDF ALREADY AT 90. COMBINED THOSE TEMPERATURES WITH DEWPOINTS IN THE UPPER 60S TO THE LOWER 70S AND HEAT INDICES ARE ALREADY IN THE LOWER-MID 90S...WITH KSDF ALREADY AT 100. A FEW MINOR UPDATES NEED TO BE MADE TO THE FORECAST BASED ON THE LATEST OBSERVATIONS AND NUMERICAL MODEL SOLUTIONS FROM THIS MORNING. FIRST TEMPERATURES WILL LIKELY TOP OUT SHORTLY ACROSS SOUTHERN INDIANA AND PORTIONS OF NORTH CENTRAL KENTUCKY DUE TO MID-HIGH LEVEL CLOUD DEBRIS ASSOCIATED WITH THE MCS TO OUR NORTH. STILL THINK LOWER 90S WILL POSSIBLE. SECOND...WITH THAT OUTFLOW HEADING SOUTH...A FEW SCATTERED STORMS WILL BE POSSIBLE ACROSS THE NORTHERN THIRD OF THE FORECAST AREA. OVERNIGHT SPC WRF SUGGESTED THAT THE CURRENT MCS WOULD DIVE A BIT FURTHER SOUTHEAST THIS AFTERNOON. SHOULD THIS PAN OUT...THEN OUR FAR NORTHEASTERN COUNTIES COULD BE IMPACTED...THOUGH I THINK MORE OF NORTHEAST KY ALONG THE OHIO RIVER WOULD BE IMPACTED (MAINLY FROM COVINGTON TO HUNTINGTON WV). THEREFORE...FEEL THAT CURRENT POP FORECAST IS A BIT ON THE HIGH SIDE ACROSS SOUTH CENTRAL KY...AND WILL TRIM BACK POPS DOWN THAT WAY...AND KEEP CHC POPS GOING ACROSS ALL OF SOUTHERN INDIANA AND MUCH OF NORTH CENTRAL AND THE BLUEGRASS REGION OF KY. FURTHER SOUTH...HOT/MUGGY CONDITIONS ARE EXPECTED WITH AFTERNOON HIGHS IN THE LOWER-MID 90S AND HEAT INDICES IN THE 100-105 DEGREE RANGE. WILL CONTINUE THE SPS AND HOLD OFF ON THE HEAT ADVISORY AS HEAT INDEX LEVELS ARE NOT EXPECTED TO BE ABOVE THE CRITERIA. AS TO SEVERE STORM POTENTIAL...LATEST OBJ ANALYSIS SHOWS MODERATE INSTABILITY ACROSS THE AREA. WHILE WIND FIELDS ARE GENERALLY LIGHT SO WITH A HIGH INSTABILITY LOW-SHEAR ENVIRONMENT...FEEL THAT DAMAGING WINDS WOULD BE THE PRIMARY SEVERE THREAT WITH ANY STORMS THAT DEVELOP. IN ADDITION...INTENSE RAINFALL AND CLOUD TO GROUND LIGHTNING WILL ACCOMPANY ANY STORMS THAT DEVELOP. .SHORT TERM (TODAY AND TONIGHT)... BIG CHALLENGE FOR THE SHORT TERM FORECAST WILL BE HOW TO HANDLE UPSTREAM MCS MOVING TOWARD THE REGION AND ITS RESULTANT IMPACT ON OUR SENSIBLE WEATHER. OF THE BIGGEST CONCERN WILL BE HOW HIGH TEMPERATURES COULD GET IF CONVECTION DOES NOT MAKE IT INTO THE AREA LATER THIS AFTERNOON. HAVE GONE CONSERVATIVE ON HIGHS AND JUST BELOW THE LOWEST GUIDANCE AS WE HAVE NOT REALIZED FORECAST HIGHS THE PAST COUPLE OF DAYS. WITH UPSTREAM MCS LURKING...TOO MUCH UNCERTAINTY WILL EXIST TO FORECAST TEMPERATURES THAT WOULD PUT US IN HEAT ADVISORY CRITERIA. AS A RESULT...WILL HOLD OFF ON ANY SORT OF HEADLINE FOR THIS FORECAST PACKAGE. STILL HAVE HIGHS RANGING FROM 90 TO 95 ACROSS THE CWA AND HEAT INDICES SHOULD RANGE FROM 97 TO 102 DEGREES SO WILL CONTINUE WITH AN SPS TO HIGHLIGHT THE THREAT. CURRENTLY...IR SATELLITE IMAGERY SHOWS A SOMEWHAT WEAKENING MCS OVER THE EASTERN PLAINS WITH LIGHTNING DECREASING AND CLOUD TOP TEMPS WARMING OVER THE PAST COUPLE OF IMAGES. SOUTHERN EDGE OF THIS THUNDERSTORM COMPLEX...CURRENTLY NEAR THE KANSAS CITY AREA REMAINS STRONG AND THIS IS THE AREA OF CONVECTION WE WILL HAVE TO KEEP AN EYE ON AS THE EARLY AFTERNOON APPROACHES. THESE STORMS HAVE RECENTLY MADE A SOUTHEASTWARD TURN TOWARD THE OHIO VALLEY AND THE CULPRIT FOR THIS TURN APPEARS TO BE AN INSTABILITY AXIS LOCATED FROM KANSAS CITY SOUTHEASTWARD THROUGH ST. LOUIS AND EVANSVILLE. WITH 700-300 MB MEAN WIND ALSO ORIENTED NORTHWEST TO SOUTHEAST FEEL THAT THIS COMPLEX SHOULD CONTINUE TO PROPAGATE TOWARD OUR REGION. TO SUPPORT THIS... 12Z SPC WRF AND THE 00Z NAM SHOW THIS SCENARIO PLAYING OUT AND SPC HAS ISSUED A SLIGHT RISK FOR OUR NORTHERN CWA TODAY. THE ONLY REAL QUESTION IS WHETHER THE SYSTEM WILL SURVIVE THE NIGHT AND HOLD TOGETHER. WITH UNSTABLE AIRMASS TO THE SOUTH...SEE NO REASON WHY IT SHOULDN/T CONTINUE...HOWEVER WEAKENING TREND IS A BIT CONCERNING. AT THE VERY LEAST AFTERNOON REDEVELOPMENT ALONG THE INSTABILITY BOUNDARY SEEMS POSSIBLE. THEREFORE...FEEL STRONGLY ENOUGH TO INTRODUCE CHANCE POPS BY LATE MORNING EARLY AFTERNOON IN NORTHWEST CWA WITH THE LOUISVILLE METRO AND LEXINGTON AREAS BEING AFFECTED AROUND 3 PM AND AFTER. MAIN THREAT WITH THESE STORMS WILL BE DAMAGING WINDS...HEAVY RAINFALL...AND CLOUD TO GROUND LIGHTNING. HAVE KEPT AREAS ALONG THE TENNESSEE BORDER DRY AS SOUTHWARD PROGRESSION SEEMS LIMITED AGAINST UPPER RIDGE. CONDITIONS IMPROVE AFTER SUNSET WITH JUST SLIGHT CHANCES OF A LINGERING SHOWER OR THUNDERSTORM IN THE BLUEGRASS EARLY THIS EVENING. LOW TEMPERATURES SHOULD ONCE AGAIN STAY ON THE WARM SIDE RANGING FROM 69 TO 74 DEGREES. AREAS IN THE EAST SHOULD SEE THE LOWEST TEMPERATURES. .LONG TERM (TUESDAY - SUNDAY)... ...HOT AND HUMID TUESDAY AND WEDNESDAY WITH TEMPS IN THE MID AND UPPER 90S AND DANGEROUS HEAT INDICES RANGING FROM 100-105... REALLY DID NOT MAKE TOO MANY CHANGES FROM PREVIOUS FORECAST. AGREE WITH PREVIOUS LONG-TERM FORECASTER THAT THERE IS A SLIGHT CHANCE FOR CONVECTION MAINLY OVER OUR NORTHERN CWA TUESDAY WITH FRONTAL BOUNDARY SAGGING CLOSER TO THE OHIO RIVER AND REMNANT OR REDEVELOPING MCS'S ALONG THIS BOUNDARY. AFTER THAT THOUGH THE RIDGE BUILDS BACK IN A BIT PUSHING THE WEAK FRONTAL BOUNDARY FURTHER NORTH FOR TUES NIGHT-WED SO WENT AHEAD AND KEPT THOSE TIME FRAMES MOSTLY DRY EXCEPT FOR OVER THE FAR NORTH WED AFTN BUT REALLY THINK RAIN WILL WAIT TO ARRIVE UNTIL WED NIGHT. THE BETTER CHANCES FOR SHOWERS/STORMS WED NIGHT THROUGH THURSDAY NIGHT WILL COME AS THE THE NORTHERN STREAM TROUGH CURRENTLY OVER THE PAC NW WILL HELP PUSH THE BOUNDARY TO OUR NORTH SOUTHWARD ACROSS THE REGION. AGAIN...THINK THIS WILL MAINLY HOLD OFF UNTIL WED NIGHT INTO THURSDAY...WITH THRS DURING THE DAY MORE THAN LIKELY SEEING THE BETTER CHC OF RAIN. INCREASED POPS TO 40 PERCENT SINCE WE WILL BE PLENTY UNSTABLE AND MOIST SO CONVECTION...WHEREVER IT INITIATES ALONG THE BOUNDARY SHOULD IMPACT OUR REGION. WHEREVER IT DOES RAIN...HEAVY RAIN AND POSSIBLY STRONGER STORMS WITH GUSTY WINDS WILL BE POSSIBLE. ALSO...THE CONVECTION MAINLY ON THURSDAY WILL BRING A REPRIEVE TO THE HEAT EXPECTED TUESDAY AND WEDNESDAY (THESE DAYS WILL BE THE BEST CHANCE FOR MEETING HEAT ADVISORY CRITERIA--HEAT INDICES TO 105 FOR 3 HOURS). THURSDAY HIGHS ARE DIFFICULT TO PIN DOWN BUT GIVEN THE EXPECTED INCREASED CLOUD COVER...THINK THAT UPPER 80S TO AROUND 90 HIGHS WILL BE LIKELY. SAME TEMPS FOR FRIDAY AS THE WEAK FRONTAL BOUNDARY WASHES OUT SOUTH OF THE CWA THEN. FRIDAY SHOULD SEE LOWER DEWPOINTS SO IT WILL FEEL MUCH BETTER OUT DESPITE TEMPS AROUND 90 AGAIN. REMOVED POPS FRIDAY THINKING THAT ANY CONVECTION ALONG THE RESIDUAL FRONT WILL BE SOUTH OF THE CWA. SATURDAY-SUNDAY... UNCHANGED. PREVIOUS DISCUSSION BELOW. AFTERWARD...FOR THE WEEKEND...UPR LEVEL RIDGE BUILDS FROM THE SCNTRL/SE U.S. NWD INTO THE MS/LWR OH VLYS. GFS DISPLAYS THE GREATEST AMPLITUDE/BUILDING OF THE RIDGE NWD...THEREFORE ITS MOS TEMPS ARE LIKELY A LITTLE HIGH WITH MAX TEMPS AS IT HAS BEEN FOR SEVERAL DAYS. ALSO...GROUND MOISTURE/GREEN FOLIAGE WILL CONTINUE TO MODERATE MAX TEMPS AS WELL. SO WILL GO WITH A DRY SAT AND SUN WITH HIGH TEMPS BACK IN THE LOWER/MID 90S AS OPPOSED TO THU AND FRI WHICH LOOK TO BE ABOUT 3 DEGS COOLER. && .AVIATION (18Z TAF ISSUANCE)... VIS SAT IMAGERY SHOWING A NICE CU FIELD ACROSS THE EASTERN HALF OF THE FORECAST AREA. IT APPEARS THAT WE HAVE A DECENT CAP OVER THE WESTERN HALF OF THE FORECAST AREA...GENERALLY WEST OF I-65. STRONG MCS CONTINUES TO MOVE SOUTHEAST AND WILL LIKELY AFFECT AREAS AROUND KLEX THIS AFTERNOON. WILL BE CARRYING VCTS AT KSDF AND KLEX THIS AFTERNOON...THOUGH FEEL THAT KLEX HAS THE BEST SHOT AT GETTING STORMS AT THE TERMINAL. GUSTY WINDS...INTENSE LIGHTNING AND LOW CIGS/VSBYS CAN BE EXPECTED THERE AS THE STORMS ROLL THROUGH. KSDF IS A BIT MORE DIFFICULT. WHILE MOST OF THE CONVECTION IS EAST OF THE TERMINAL...SOME DEVELOPMENT IS OCCURING ALONG AN OUTFLOW BOUNDARY NORTH OF THE OHIO RIVER. FOR NOW WILL SIMPLY CARRY VCTS AT KSDF AND CONTINUE TO MONITOR. FURTHER SOUTH...KBWG SHOULD REMAIN IN A CAPPED ENVIRONMENT WITH VFR CIGS/VSBYS. && .LMK WATCHES/WARNINGS/ADVISORIES... KY...NONE. IN...NONE. && UPDATE.........MJ SHORT TERM.....BJS LONG TERM......AL AVIATION.......MJ
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 1143 AM EDT MON JUN 21 2010 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 212100- 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- 1143 AM EDT MON JUN 21 2010 /1043 AM CDT MON JUN 21 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...THIS AFTERNOON AND TONIGHT. THERE IS A CHANCE FOR THUNDERSTORMS THIS AFTERNOON AND EARLY EVENING...SOME OF WHICH COULD BECOME BRIEFLY SEVERE. HEAVY RAINFALL...DAMAGING WINDS...AND CLOUD TO GROUND LIGHTNING WILL BE THE MAIN THREATS WITH THESE THUNDERSTORMS. IN ADDITION...HIGH TEMPERATURES IN THE LOW TO MID 90S COMBINED WITH HIGH RELATIVE HUMIDITY WILL ALLOW FOR HEAT INDEX VALUES TO RANGE FROM 98 TO 103. WITH HEAT INDICES THIS HIGH...TAKE THE PROPER PRECAUTIONS TO AVOID HEAT-RELATED ILLNESSES BY DRINKING PLENTY OF FLUIDS...MINIMIZING STRENUOUS PHYSICAL ACTIVITY...AND AVOIDING PROLONGED EXPOSURE TO DIRECT SUNLIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE COMBINATION OF HIGH TEMPERATURES IN THE MID 90S AND HIGH HUMIDITY VALUES WILL RESULT IN HEAT INDICES FROM NEAR 100 TO 105...MAINLY DURING THE AFTERNOON AND EARLY EVENING HOURS TUESDAY AND WEDNESDAY. WITH HEAT INDICES THIS HIGH...TAKE THE PROPER PRECAUTIONS TO AVOID HEAT-RELATED ILLNESSES BY DRINKING PLENTY OF FLUIDS...MINIMIZING STRENUOUS PHYSICAL ACTIVITY...AND AVOIDING PROLONGED EXPOSURE TO DIRECT SUNLIGHT. IN ADDITION...THERE ARE SLIGHT CHANCES OF THUNDERSTORMS TUESDAY AND WEDNESDAY AFTERNOONS...WITH BETTER WIDESPREAD THUNDERSTORM CHANCES LATE WEDNESDAY NIGHT THROUGH THURSDAY AS A COOL FRONT APPROACHES AND PASSES THROUGH THE REGION TO THE SOUTH. ANY THUNDERSTORM WILL BRING BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT DAMAGING WINDS...HAIL...AND HEAVY RAINFALL TO THE NATIONAL WEATHER SERVICE OFFICE IN LOUISVILLE THIS AFTERNOON AND EVENING. KYZ070>078-081-082-212100- LOGAN KY-WARREN KY-SIMPSON KY-ALLEN KY-BARREN KY-MONROE KY- METCALFE KY-ADAIR KY-RUSSELL KY-CUMBERLAND KY-CLINTON KY- 1043 AM CDT MON JUN 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL KENTUCKY. .DAY ONE...THIS AFTERNOON AND TONIGHT. HIGH TEMPERATURES IN THE LOW TO MID 90S COMBINED WITH HIGH RELATIVE HUMIDITY WILL ALLOW FOR HEAT INDEX VALUES TO RISE BETWEEN 100-104 DEGREES. WITH HEAT INDICES THIS HIGH...TAKE THE PROPER PRECAUTIONS TO AVOID HEAT- RELATED ILLNESSES BY DRINKING PLENTY OF FLUIDS...MINIMIZING STRENUOUS PHYSICAL ACTIVITY...AND AVOIDING PROLONGED EXPOSURE TO DIRECT SUNLIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE COMBINATION OF HIGH TEMPERATURES IN THE MID 90S AND HIGH HUMIDITY VALUES WILL RESULT IN HEAT INDICES FROM NEAR 100 TO 105...MAINLY DURING THE AFTERNOON AND EARLY EVENING HOURS TUESDAY AND WEDNESDAY. WITH HEAT INDICES THIS HIGH...TAKE THE PROPER PRECAUTIONS TO AVOID HEAT-RELATED ILLNESSES BY DRINKING PLENTY OF FLUIDS...MINIMIZING STRENUOUS PHYSICAL ACTIVITY...AND AVOIDING PROLONGED EXPOSURE TO DIRECT SUNLIGHT. IN ADDITION...CHANCES FOR THUNDERSTORMS WILL INCREASE LATE WEDNESDAY NIGHT THROUGH THURSDAY AS A COOL FRONT APPROACHES AND PASSES THROUGH THE REGION TO THE SOUTH. ANY THUNDERSTORM WILL BRING BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. MJ/AL/BJS
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1155 AM EDT MON JUN 21 2010
KYZ049-211645-
CLARK-
1155 AM EDT MON JUN 21 2010
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...SMALL
HAIL...AND GUSTY WINDS WILL AFFECT CLARK COUNTY.
AT 1151 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR WINCHESTER...AND MOVING EAST AT 10 TO 15
MPH.
CONTINUOUS CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES
OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE
MILE...SMALL PEA OR DIME SIZE HAIL...AND GUSTY WINDS OF AROUND 35 TO
40 MPH...ARE EXPECTED WITH THIS STORM.
THIS STORM WILL AFFECT INTERSTATE 64 IN KENTUCKY BETWEEN MILE MARKERS
101 AND 98.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...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.
&&
LAT...LON 3792 8400 3788 8400 3787 8401 3793 8431
3807 8429 3810 8415 3809 8407 3795 8398
3793 8398
TIME...MOT...LOC 1555Z 278DEG 10KT 3800 8418
MJSPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE LOUISVILLE KY
1203 PM EDT MON JUN 21 2010
KYZ049-211645-
CLARK-
1203 PM EDT MON JUN 21 2010
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...SMALL
HAIL...AND GUSTY WINDS WILL AFFECT CLARK COUNTY...
AT 1151 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR WINCHESTER...AND MOVING EAST AT 10 TO 15
MPH.
CONTINUOUS CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES
OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE
MILE...SMALL PEA OR DIME SIZE HAIL...AND GUSTY WINDS OF AROUND 35 TO
40 MPH...ARE EXPECTED WITH THIS STORM.
THIS STORM WILL AFFECT INTERSTATE 64 IN KENTUCKY BETWEEN MILE MARKERS
101 AND 98.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...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.
&&
LAT...LON 3792 8400 3788 8400 3787 8401 3793 8431
3807 8429 3810 8415 3809 8407 3795 8398
3793 8398
TIME...MOT...LOC 1555Z 278DEG 10KT 3800 8418
MJSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1239 PM EDT MON JUN 21 2010
INZ079-KYZ032-211715-
JEFFERSON-TRIMBLE-
1239 PM EDT MON JUN 21 2010
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...SMALL
HAIL...AND GUSTY WINDS...
AT 1236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 8 MILES NORTHWEST OF MADISON...AND MOVING
SOUTHEAST AT 25 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES
OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE
MILE...SMALL PEA OR DIME SIZE HAIL...AND GUSTY WINDS OF AROUND 35 TO
40 MPH...ARE EXPECTED WITH THIS STORM.
THIS STORM WILL ALSO IMPACT...
MADISON...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...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.
&&
LAT...LON 3874 8520 3870 8520 3869 8522 3874 8527
3874 8532 3867 8527 3858 8543 3882 8565
3884 8563 3885 8563 3893 8544 3892 8534
TIME...MOT...LOC 1639Z 330DEG 21KT 3880 8551
NFSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
124 PM EDT MON JUN 21 2010
KYZ034-035-039-040-211800-
ANDERSON-FRANKLIN-SHELBY-WOODFORD-
124 PM EDT MON JUN 21 2010
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...SMALL
HAIL...AND GUSTY WINDS...
AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 8 MILES NORTHWEST OF FRANKFORT...AND MOVING SOUTH
AT 15 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING...TORRENTIAL RAIN WITH RAINFALL
RATES OF AROUND TWO INCHES PER HOUR REDUCING VISIBILITIES TO LESS
THAN ONE HALF MILE...SMALL PEA OR DIME SIZE HAIL...AND GUSTY WINDS OF
AROUND 35 TO 40 MPH...ARE EXPECTED WITH THIS STORM.
THIS STORM WILL ALSO IMPACT...
FRANKFORT...
THIS STORM WILL AFFECT INTERSTATE 64 IN KENTUCKY BETWEEN MILE MARKERS
43 AND 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...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.
&&
LAT...LON 3835 8489 3836 8487 3823 8474 3819 8474
3819 8476 3818 8468 3817 8467 3801 8502
3827 8522 3834 8503 3833 8497 3835 8496
3837 8493
TIME...MOT...LOC 1724Z 343DEG 15KT 3826 8497
NFSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
125 PM EDT MON JUN 21 2010
KYZ034-035-039-040-211800-
ANDERSON-FRANKLIN-SHELBY-WOODFORD-
125 PM EDT MON JUN 21 2010
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...SMALL
HAIL...AND GUSTY WINDS...
AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 8 MILES NORTHWEST OF FRANKFORT...AND MOVING
SOUTHEAST AT 25 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING...TORRENTIAL RAIN WITH RAINFALL
RATES OF AROUND TWO INCHES PER HOUR REDUCING VISIBILITIES TO LESS
THAN ONE HALF MILE...SMALL PEA OR DIME SIZE HAIL...AND GUSTY WINDS OF
AROUND 35 TO 40 MPH...ARE EXPECTED WITH THIS STORM.
THIS STORM WILL ALSO IMPACT...
FRANKFORT...
THIS STORM WILL AFFECT INTERSTATE 64 IN KENTUCKY BETWEEN MILE MARKERS
43 AND 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...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.
&&
LAT...LON 3835 8489 3836 8487 3823 8474 3819 8474
3819 8476 3818 8468 3817 8467 3801 8502
3827 8522 3834 8503 3833 8497 3835 8496
3837 8493
TIME...MOT...LOC 1724Z 343DEG 15KT 3826 8497
NFSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
126 PM EDT MON JUN 21 2010
KYZ032-033-211800-
HENRY-TRIMBLE-
126 PM EDT MON JUN 21 2010
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...MODERATE RAIN...AND
GUSTY WINDS...
AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR BEDFORD...AND MOVING SOUTHEAST AT 35 MPH.
OCCASIONAL LIGHTNING...MODERATE RAIN WITH RAINFALL RATES OF AROUND
ONE HALF INCH PER HOUR REDUCING VISIBILITIES...AND GUSTY WINDS OF
AROUND 35 TO 45 MPH...ARE EXPECTED WITH THIS STORM.
THIS STORM WILL AFFECT INTERSTATE 71 IN KENTUCKY BETWEEN MILE MARKERS
34 AND 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE AWARE THAT A GUST FRONT PRECEDING THIS STORM WILL GENERATE STRONG
AND GUSTY WINDS WELL BEFORE THE ARRIVAL OF ANY RAIN.
AVOID USING THE TELEPHONE UNLESS IT IS AN EMERGENCY.
&&
LAT...LON 3868 8528 3859 8522 3861 8509 3858 8507
3856 8501 3852 8503 3852 8498 3843 8496
3846 8493 3841 8488 3838 8490 3836 8487
3847 8535 3849 8533 3851 8534 3853 8541
3869 8530
TIME...MOT...LOC 1725Z 300DEG 29KT 3859 8526
JDGThe Cincinnati radar (KILN), 118 km away, was scanning. The volume nearest the first event began at 17:31 UTC.
9 thunderstorm wind, 2 flash flood. Local standard time, as filed.
A tree was down over Highway 27 near Northside Elementary School.
Two trees were blown down on Berry Robinson Rd.
One tree was reported down in Renaker.
Multiple trees were blown down in Connersville.
Two trees were blown down along with numerous large branches along Townsend Valley Rd.
Old Boonesboro Rd. and Fieldstone Way were closed due to high water.
Several inches of water was flowing over Harp Pike and Flat Creek roads.
A tree was down on Springridge Dr. and was blocking the road.
Several trees were down throughout Lexington on Paynes Mill Rd, Alexandria Dr, Bosworth Rd, and Caulder Rd.
A tree was blown down on Fairview Rd.
Several trees were blown down in Duluth.
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, June 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: 244230, 244244, 244245, 244246, 244248, 244224, 244226, 244265, 244267, 244285, 244287.