Isolated flooding occurred with thunderstorms that developed along a slow-moving upper level disturbance over the lower Ohio Valley.
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 PAH wrote it up.
Isolated flooding occurred with thunderstorms that developed along a slow-moving upper level disturbance over the lower Ohio Valley.
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 Paducah, KY wrote its last area forecast discussion before the first event at Jun 10, 12:56 PM CST, 2 hours 14 minutes earlier.
Area Forecast Discussion National Weather Service Paducah KY 156 PM CDT Thu Jun 10 2021 .SHORT TERM...(Tonight through Saturday night) Issued at 156 PM CDT Thu Jun 10 2021 A weak upper level shortwave, evident on IR water vapor imagery is slowly advancing east southeastward across northeast Missouri and central Illinois this afternoon. This is likely leading to enhanced large scale ascent - helping to increase coverage of showers and thunderstorms that are gathered along broad surface troughing in the Ohio River corridor. The airmass remains saturated with a blend of satellite/observation based precipitable water estimates still at 1.6 to 1.8 inches. This is leading to very efficient rainfall rates, with a quick 0.75 to 1.00" of rain already observed today in slow moving showers. This is expected to continue through the afternoon. Breaks in the overcast in the east, and general clearing in the west have allowed temperatures to warm up sufficiently for about 1000 to 1500 J/kg of MLCAPE which is allowing for stronger convection than we have seen the last few days. Localized flooding from slow moving heavy rain will be the main concern through the evening. The focus of convection will likely slowly nudge southeastward through the late afternoon, but much of the area currently being impacted will retain a decent chance of precip through sunset. Activity will likely wane after sunset, save perhaps the easternmost part of the area that will remain ahead of the passing trough axis through midnight or so. Patchy fog appears a safe bet in the overnight hours and it may be locally dense. Friday most of the synoptic scale forcing mechanisms will depart, but the airmass will remain quite saturated through the lower half of the column with surface dewpoints remaining in the low 70s. With afternoon highs moving into the low 90s in most locales it's not difficult to picture a few residual boundaries or differential heating zones aiding in popping scattered showers and thunderstorms in the afternoon, particularly in the east. With MLCAPEs 1500-2000 J/kg and drier mid level air working in a pulse severe storm or two can't be ruled out and locally heavy rain will be likely with any activity. Saturday upper level and surface ridging begin to muscle their way into the area, but NAM/GFS/ECMWF continue to show weak ripples in the flow so at least some rain/thunder chances remain. High temps will be in the 90 to 93 degree range with heat indices amid low 70s dewpoints flirting with 100 degrees. .LONG TERM...(Sunday through Thursday) Issued at 156 PM CDT Thu Jun 10 2021 Long range model output shows mid tropospheric amplification next week, with ridging centered over the Four Corners region, and a trough deepening over the east U.S. This will place us in NNW flow aloft with high pressure settling south and becoming more of an influence with time. The only precip targets are Sunday, then again Tuesday. Both the EC and CMC are persistent with a signal for convection Sunday. However the chance is rather slight given little support aloft. Dew point boundary, weak convergence and daytime heating may be enough, but that's about it. The other chance, only seen in the GFS is Tuesday, and briefly the CMC Tuesday evening, with a secondary front. The EC does not show this. At this time, confidence is not high enough to include in the forecast. Better forcing aloft stays east. Temperatures will be close to normal through the period. && .AVIATION... Issued at 1229 PM CDT Thu Jun 10 2021 Showers and a few thunderstorms are spinning about broad/weak troughing from southwest Missouri to southwest Indiana. The shower coverage is increasing and likely will continue through the afternoon. This activity is slow moving and visibility drops to 1 to 2 miles should be expected. Prevailing conditions should be VFR across SEMO decreasing to high MVFR in southwest Indiana. Convective activity should begin to wane around sunset. Areas of overnight fog and low clouds may deteriorate into IFR conditions especially across northwest KY and southwest Indiana before improving in the late morning. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && SHORT TERM...JGG LONG TERM...08 AVIATION...JGG
Hazardous Weather Outlook National Weather Service Paducah KY 238 PM CDT Thu Jun 10 2021 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-111000- Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton- White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope- Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh- Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves- Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell- Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean- Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter- Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid- 238 PM CDT Thu Jun 10 2021 This Hazardous Weather Outlook is for portions of southern Illinois, southwestern Indiana, western Kentucky, and southeastern Missouri. .DAY ONE...Today and Tonight Scattered thunderstorms will continue into the early evening then diminish. Heavy rainfall could cause isolated instances of flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Isolated to scattered thunderstorms are forecast through Sunday. Locally heavy rainfall and lightning are the primary hazards. .SPOTTER INFORMATION STATEMENT... Skywarn spotter activation is not anticipated.
Special Weather Statement National Weather Service Paducah KY 1238 PM CDT Thu Jun 10 2021 ILZ077-078-082-083-085>094-INZ081-082-085>088-KYZ001>008-010-011- 013>016-018>020-MOZ086-087-100-110>112-114-101930- Edwards-Wabash-Hamilton-White-Williamson-Saline-Gallatin-Union- Johnson-Pope-Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey- Vanderburgh-Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard- McCracken-Graves-Livingston-Marshall-Crittenden-Lyon-Caldwell- Union KY-Webster-Hopkins-Henderson-Daviess-McLean-Bollinger- Cape Girardeau-Wayne MO-Stoddard-Scott-Mississippi-New Madrid- Including the cities of Albion, Mount Carmel, McLeansboro, Carmi, Herrin, Harrisburg, Shawneetown, Jonesboro, Vienna, Golconda, Elizabethtown, Cairo, Mound City, Metropolis, Fort Branch, Petersburg, Poseyville, Evansville, Boonville, Rockport, Hickman, Clinton, Bardwell, Wickliffe, Paducah, Mayfield, Smithland, Benton, Marion, Eddyville, Princeton, Morganfield, Dixon, Madisonville, Henderson, Owensboro, Calhoun, Marble Hill, Cape Girardeau, Jackson, Piedmont, Bloomfield, Sikeston, Charleston, and New Madrid 1238 PM CDT Thu Jun 10 2021 ...LOCALLY HEAVY RAIN THIS AFTERNOON... At 1235 PM, numerous showers and thunderstorms extended from the Evansville Indiana area, down along the Ohio River toward Paducah Kentucky, west to the Interstate 55 corridor in southeast Missouri. Through 200 PM, the showers and storms will persist, move slowly and drop locally very heavy rain in a short amount of time. For those traveling, be alert for standing water in low lying, poor drainage areas. Also, expect rather poor visibility due to the heavy rain.
Special Weather Statement National Weather Service Paducah KY 200 PM CDT Thu Jun 10 2021 ILZ077-078-082-083-085>094-INZ081-082-085>088-KYZ001>008-010-011- 013>016-018>020-MOZ086-087-100-110>112-114-102100- Edwards-Wabash-Hamilton-White-Williamson-Saline-Gallatin-Union- Johnson-Pope-Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey- Vanderburgh-Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard- McCracken-Graves-Livingston-Marshall-Crittenden-Lyon-Caldwell- Union KY-Webster-Hopkins-Henderson-Daviess-McLean-Bollinger- Cape Girardeau-Wayne MO-Stoddard-Scott-Mississippi-New Madrid- Including the cities of Albion, Mount Carmel, McLeansboro, Carmi, Herrin, Harrisburg, Shawneetown, Jonesboro, Vienna, Golconda, Elizabethtown, Cairo, Mound City, Metropolis, Fort Branch, Petersburg, Poseyville, Evansville, Boonville, Rockport, Hickman, Clinton, Bardwell, Wickliffe, Paducah, Mayfield, Smithland, Benton, Marion, Eddyville, Princeton, Morganfield, Dixon, Madisonville, Henderson, Owensboro, Calhoun, Marble Hill, Cape Girardeau, Jackson, Piedmont, Bloomfield, Sikeston, Charleston, and New Madrid 200 PM CDT Thu Jun 10 2021 ...LOCALLY HEAVY RAIN THIS AFTERNOON... At 200 PM, numerous showers and thunderstorms continued from the Evansville Indiana and Henderson Kentucky area, down along the Ohio River to near Paducah, west into portions of southeast Missouri. Through 400 PM, the showers and storms will persist, move slowly and drop locally very heavy rain in a short amount of time. For those traveling, be alert for standing water in low lying, poor drainage areas. Also, expect rather poor visibility due to the heavy rain. More heavy rain is expected across Evansville and Henderson. Some street flooding is possible.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
342 PM CDT THU JUN 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0333 PM HEAVY RAIN 4 S POSEYVILLE 38.11N 87.79W
06/10/2021 M2.19 INCH POSEY IN MESONET
ONE HOUR RAINFALL TOTAL. MESONET STATION
CW9171 WADESVILLE.
&&
DWSThe national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
A few city streets were closed by flooding around Henderson.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2021Every state in 2021This day in weather historyWarnings in Kentucky, June 2021
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: 961298.