Numerous thunderstorms developed in the heat of the afternoon south of an outflow boundary that was draped across central Illinois and east central Missouri. Vertical wind shear was very weak, resulting in little if any storm organization.
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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 PAH wrote it up.
Numerous thunderstorms developed in the heat of the afternoon south of an outflow boundary that was draped across central Illinois and east central Missouri. Vertical wind shear was very weak, resulting in little if any storm organization. Even so, a few storms briefly pulsed up to severe levels. Damaging wind gusts were very isolated.
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 9, 2:00 PM CST, 41 minutes earlier.
Area Forecast Discussion National Weather Service Paducah KY 300 PM CDT Sat Jun 9 2018 .SHORT TERM...(Tonight through Sunday night) Issued at 300 PM CDT Sat Jun 9 2018 Scattered convection ongoing as a boundary moves across the area. Pulse strong storms, isolated severe with downbursting winds and hail up to 1". Think the convection will continue east, with a worked over airmass in its wake. So a lull may develop across the area as we stabilize over the next several hours. Overnight, we may see additional convection, best chances NE to lowest SW, trending into Sunday and Sunday night as well. Near term was based largely on Sat/Radar trends. We transitioned to mainly a ECMWF depiction as it seems more steady run to run with future convective chances. The NAM has been pretty poor and the GFS is way overdone as it usually is. .LONG TERM...(Monday through Saturday) Issued at 300 PM CDT Sat Jun 9 2018 Models show a frontal boundary across northeast portions or just north of the PAH forecast area Monday into Monday night. Scattered showers and thunderstorms will be possible mainly east of the Mississippi River on Monday, with lesser chances in the areas Monday night with loss of heating. On Tuesday, ECMWF and GFS show a cold front moving across the region. Showers and thunderstorms will be possible in our far west counties by late Monday night, then scattered showers and storms will be possible across the entire area through the day Monday. GFS is faster than the ECMWF moving the front across the area, extending it from the Missouri bootheel to the Pennyrile region of west Kentucky by 00z Wednesday, and is the preferred solution at this time. This will keep shower and storm activity mainly across west Kentucky Tuesday night. Keeping with the GFS solution, surface high pressure will slide southeast into the area on Wednesday and give us dry conditions. Temperatures will drop back a couple of degrees, and with a shift to northerly winds, dew points will lower by several degrees. Late Wednesday night into Thursday, GFS brings a warm front north across the PAH forecast area. Scattered showers and storms will be possible across the area Thursday into Friday night, with warmer and more moist air returning to the region. Dry conditions are expected to return by Saturday, but confidence is not too high with models differing in the their solutions. && .AVIATION... Issued at 1114 AM CDT Sat Jun 9 2018 Generally VFR conditions except for in scattered thunderstorm activity. SSW winds less than 10 kts. Variable cloud cover. Should storms affect any of the terminals, IFR conditions likely along with variable gusty winds. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. &&
Hazardous Weather Outlook National Weather Service Paducah KY 932 AM CDT Sat Jun 9 2018 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-100900- 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- 932 AM CDT Sat Jun 9 2018 This Hazardous Weather Outlook is for portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. .DAY ONE...Today and Tonight Scattered thunderstorms are expected. Stronger storms may produce wind gusts 35 to 55 mph and small hail less than 1 inch in diameter. A brief severe storm or two may produce marginally severe hail around Quarter Size and wind gusts near 60 mph. Storms will be slow moving, so localized minor flooding cannot be ruled out. Storm motion should generally be southeast 15 to 20 mph. .DAYS TWO THROUGH SEVEN...Sunday through Friday There is a better chance of thunderstorms on Sunday and Sunday night. A few storms with hail and strong winds are possible, mainly across southwest Indiana and nearby portions of Kentucky and Illinois Sunday afternoon and evening. Locally heavy rainfall will also be a concern. There is an off and on chance for thunderstorms next Monday through Friday. Although the potential for widespread severe weather is low at this time, locally heavy rain and lightning will still be the primary hazards with any thunderstorm activity. Heat index values may reach near 100 degrees near the confluence of the Ohio and Mississippi Rivers on Monday, Tuesday, and Thursday afternoons. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. York/Smith/CN
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
212 PM CDT SAT JUN 9 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0155 PM HAIL 2 ENE ROUND KNOB 37.23N 88.69W
06/09/2018 E0.88 INCH MASSAC IL PUBLIC
DIME TO NICKEL SIZE HAIL REPORTED NEAR KOMMER ROAD.
&&
DWSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
224 PM CDT SAT JUN 9 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0220 PM TSTM WND DMG WICKLIFFE 36.97N 89.08W
06/09/2018 BALLARD KY EMERGENCY MNGR
TREES DOWN IN THE COMMUNITY
&&
SMITTYPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
227 PM CDT SAT JUN 9 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0226 PM TSTM WND DMG LA CENTER 37.07N 88.97W
06/09/2018 BALLARD KY EMERGENCY MNGR
POWER OUTAGES REPORTED.
&&
SMITTYPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
236 PM CDT SAT JUN 9 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0234 PM TSTM WND GST HARRISBURG 37.74N 88.55W
06/09/2018 E50 MPH SALINE IL TRAINED SPOTTER
WIND GUSTS ESTIMATED 40 TO 50 MPH WITH PEA SIZE HAIL.
&&
SMITTYSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PADUCAH KY 336 PM CDT Sat Jun 9 2018 INZ087-088-KYZ008-009-011>013-015>022-092200- WARRICK-SPENCER-MARSHALL-CALLOWAY-LYON-TRIGG-CALDWELL-WEBSTER- HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN-MUHLENBERG-TODD- INCLUDING THE CITIES OF BOONVILLE, ROCKPORT, BENTON, MURRAY, EDDYVILLE, CADIZ, PRINCETON, DIXON, MADISONVILLE, HOPKINSVILLE, HENDERSON, OWENSBORO, CALHOUN, GREENVILLE, AND ELKTON 336 PM CDT Sat Jun 9 2018 ...Special Weather Statement... At 325 PM, radar showed an outflow boundary, the leading edge of gusty thunderstorm winds, extending from Boonville Indiana to Dixon and Murray Kentucky. The boundary was moving eastward at 40 to 50 mph and 40 to 50 mph winds can be expected for a few minutes after the boundary passes. Through 5 PM the strongest winds are most likely over Spencer County Indiana and Daviess County Kentucky. Scattered thunderstorms will continue behind the outflow boundary. The strongest storms will be over Mississippi County Missouri where localized winds in excess of 50 mph and hail up to the size of dimes will be possible as the storm slowly builds southward. Torrential rainfall will also accompany the storm, and may lead to some minor flooding problems. Very dangerous lightning will accompany any storms this afternoon. Please seek indoor shelter when the storms approach. DRS
SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE PADUCAH KY 340 PM CDT Sat Jun 9 2018 ...Corrected effected area... INZ087-088-KYZ008-009-011>013-015>022-092200- WARRICK-SPENCER-MARSHALL-CALLOWAY-LYON-TRIGG-CALDWELL-WEBSTER- HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN-MUHLENBERG-TODD- INCLUDING THE CITIES OF BOONVILLE, ROCKPORT, BENTON, MURRAY, EDDYVILLE, CADIZ, PRINCETON, DIXON, MADISONVILLE, HOPKINSVILLE, HENDERSON, OWENSBORO, CALHOUN, GREENVILLE, AND ELKTON 340 PM CDT Sat Jun 9 2018 ...Special Weather Statement... At 325 PM, radar showed an outflow boundary, the leading edge of gusty thunderstorm winds, extending from Boonville Indiana to Dixon and Murray Kentucky. The boundary was moving eastward at 40 to 50 mph and 40 to 50 mph winds can be expected for a few minutes after the boundary passes. Through 5 PM the strongest winds are most likely over Spencer County Indiana and Daviess County Kentucky. Scattered thunderstorms will continue behind the outflow boundary. Locally heavy rainfall and very dangerous lightning will accompany any thunderstorms late this afternoon. Please seek shelter indoors when the storms arrive. DRS
The Paducah radar (KPAH), 60 km away, was scanning. The volume nearest the first event began at 20:40 UTC.
1 thunderstorm wind. Local standard time, as filed.
Very localized wind damage occurred. A large tree was uprooted and fell on a home, causing minor damage to the home and a vehicle. One side of the house had damaged shingles from high wind. A carport was destroyed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2018Every state in 2018This day in weather historyWarnings in Missouri, June 2018
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: 756454.