Scattered thunderstorms produced locally heavy rainfall and flooding during the early morning hours.
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 ILN wrote it up.
Scattered thunderstorms produced locally heavy rainfall and flooding during the early morning hours.
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 Wilmington, OH wrote its last area forecast discussion before the first event at Jun 10, 1:59 AM EST, 31 minutes earlier. Its key messages:
Area Forecast Discussion
National Weather Service Wilmington OH
259 AM EDT Wed Jun 10 2026
.WHAT HAS CHANGED...
Heat advisory issued for west central Ohio.
&&
.KEY MESSAGES...
1) Showers and isolated thunderstorms will continue to weaken as
they move across the area early this morning. There remains some
potential for a heavy rain threat in parts of southeast Indiana and
northern Kentucky that could lead to flash flooding.
2) Hot and humid conditions will occur today and Thursday.
3) A cold front will move through the area on Friday with a second
cold front moving through on Sunday. It will become cooler and less
humid early next week.
&&
.DISCUSSION...
KEY MESSAGE 1)
MCS is weakening as it continues to work across the forecast area in
the overnight hours. The exception is across southeast Indiana where a
northwest-southeast oriented tail has maintained robust convection.
It is not clear whether there will be any redevelopment as the
stronger cells move southeast. Until this becomes better resolved,
will keep the flood watch as is.
KEY MESSAGE 2)
Humid air mass will remain in place. There will be a decrease in
cloud cover this afternoon which will allow temperatures to rise into
the upper 80s. A pocket of slightly warmer 850 mb temperatures is
forecast to move across west central Ohio today, so highs could get
to 90 there. Temperatures are forecast to be very similar on
Thursday. The heat index will range from 95 to 100 both days. In
coordination with surrounding offices have issued a heat advisory for
west central Ohio for today where there is a somewhat better
probability of reaching a heat index of 100.
KEY MESSAGE 3)
A cold front will approach the region late Thursday night and may
even get into northwest counties before daybreak Friday. Convection
that will occur along the front well west of the area during the
afternoon and evening will most likely have weakened substantially if
not completely dissipated by the time the front arrives in the
forecast area. However, it is not completely out of the realm of
possibilities that a few stronger storms gets this far east late
Thursday night, and if that would happen then there could be a strong
to damaging wind gust.
With daytime heating on Friday, there will be convective
redevelopment along the front. Whether that occurs from central Ohio
into northeast Kentucky or whether that occurs after the front is
east of the forecast area is still a bit uncertain. Convection is
expected to become robust, so there could be some potential for
severe storms.
In the wake of the front, a less humid air mass will spread into the
area for Saturday. But moisture will quickly return Saturday night.
Another cold front will move through on Sunday with more showers and
storms. It will then become cooler and less humid for early next week.
&&
.AVIATION /06Z WEDNESDAY THROUGH SUNDAY/...
Showers across the area at the start of the TAF period will move east
within the first few hours. Conditions may pop back up to VFR for an
hour or two after the showers end, but then MVFR ceilings will
prevail until after 15Z. Clouds will then scatter by 18Z with VFR
through the rest of the TAF period. South winds will become southwest
at 10 to 15 kt during the day and then back and slightly decrease
after 00Z.
OUTLOOK... Thunderstorms possible Sunday.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...Heat Advisory from noon today to 8 PM EDT this evening for OHZ026-
034-035.
KY...Flood Watch until noon EDT today for KYZ089-090-094-095.
IN...Flood Watch until noon EDT today for INZ080.
&&
DISCUSSION...35
AVIATION...35Hazardous Weather Outlook National Weather Service Wilmington OH 521 PM EDT Tue Jun 9 2026 INZ050-058-059-066-073>075-KYZ091-092-OHZ034-035-042-043-051-060-061- 070-077-102130- Wayne-Fayette-Union-Franklin-Ripley-Dearborn-Ohio-Boone-Kenton- Mercer-Auglaize-Darke-Shelby-Miami-Preble-Montgomery-Butler-Hamilton- 521 PM EDT Tue Jun 9 2026 This Hazardous Weather Outlook is for east central Indiana, southeast Indiana, northern Kentucky, southwest Ohio and west central Ohio. .DAY ONE...Tonight. Showers and storms are expected this evening into early tonight. A few strong to marginally severe storms are possible, mainly through midnight. Gusty to isolated damaging winds and isolated large hail are the main threats. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The heat index will top out in the mid to upper 90s Wednesday and Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. KYZ093-096>100-OHZ026-044>046-052>056-062>065-071>074-078>082-088- 102130- Campbell-Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Logan-Union- Delaware-Champaign-Clark-Madison-Franklin-Licking-Greene-Fayette- Pickaway-Fairfield-Warren-Clinton-Ross-Hocking-Clermont-Brown- Highland-Adams-Pike-Scioto- 521 PM EDT Tue Jun 9 2026 This Hazardous Weather Outlook is for northeast Kentucky, northern Kentucky, central Ohio, south central Ohio, southwest Ohio and west central Ohio. .DAY ONE...Tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The heat index will rise into the mid to upper 90s Wednesday and Thursday. Strong to severe thunderstorms are possible on Friday ahead of a cold front. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. INZ080-KYZ089-090-094-095-102130- Switzerland-Carroll-Gallatin-Owen-Grant- 521 PM EDT Tue Jun 9 2026 ...FLOOD WATCH IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for southeast Indiana and northern Kentucky. .DAY ONE...Tonight. Showers and storms are expected this evening into early tonight. A few strong to marginally severe storms are possible, mainly through midnight. Gusty to isolated damaging winds and isolated large hail are the main threats. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. The heat index will top out in the mid to upper 90s Wednesday and Thursday. Strong to severe thunderstorms are possible on Friday ahead of a cold front. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed tonight due to flash flooding potential.
Special Weather Statement
National Weather Service Wilmington OH
1117 PM EDT Tue Jun 9 2026
OHZ034-100400-
Mercer OH-
1117 PM EDT Tue Jun 9 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF MERCER COUNTY
THROUGH MIDNIGHT EDT...
At 1117 PM EDT, a strong thunderstorm was located near Coldwater,
moving east at 25 mph.
HAZARD...Wind gusts up to 40 mph, frequent cloud-to-ground
lightning, and very heavy rain.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Lightning can cause serious injury or
death. Visibility will be poor and hydroplaning is
possible.
Locations impacted include...
Celina, Coldwater, St. Henry, Fort Recovery, Wabash, Chickasaw,
Burkettsville, Montezuma, Carthagena, and Maria Stein.
If outdoors, consider seeking shelter inside a sturdy building.
Motorists should slow down and use extra caution.
When thunder roars, go indoors! Do not stay in the open or seek
shelter under trees when lightning threatens.
To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.
&&
LAT...LON 4036 8445 4035 8480 4059 8480 4060 8446
TIME...MOT...LOC 0317Z 274DEG 20KT 4051 8475
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KCSpecial Weather Statement
National Weather Service Wilmington OH
1132 PM EDT Tue Jun 9 2026
OHZ042-100400-
Darke OH-
1132 PM EDT Tue Jun 9 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF DARKE COUNTY THROUGH
MIDNIGHT EDT...
At 1132 PM EDT, a strong thunderstorm was located over Union City,
moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph, frequent cloud-to-ground
lightning, and very heavy rain.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Lightning can cause serious injury or
death. Visibility will be poor and hydroplaning is
possible.
Locations impacted include...
Greenville, Versailles, Union City, Ansonia, Webster, Wayne Lakes,
Gettysburg, Osgood, North Star, Hollansburg, Rossburg, Palestine, New
Weston, Yorkshire, Union Corners, Darke County Airport, Rose Hill,
State Route 47 at US Route 127, Eldora Speedway, and Willowdell.
If outdoors, consider seeking shelter inside a sturdy building.
Motorists should slow down and use extra caution.
When thunder roars, go indoors! Do not stay in the open or seek
shelter under trees when lightning threatens.
To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.
&&
LAT...LON 4005 8449 4000 8481 4035 8480 4035 8444
TIME...MOT...LOC 0332Z 267DEG 24KT 4022 8476
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KCSpecial Weather Statement
National Weather Service Wilmington OH
1156 PM EDT Tue Jun 9 2026
OHZ042-043-051-100445-
Darke OH-Shelby OH-Miami OH-
1156 PM EDT Tue Jun 9 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SHELBY...
NORTHEASTERN DARKE AND NORTHWESTERN MIAMI COUNTIES THROUGH 1245 AM
EDT...
At 1155 PM EDT, a strong thunderstorm was located near Versailles,
moving east at 25 mph.
HAZARD...Wind gusts up to 45 mph, frequent cloud-to-ground
lightning, and very heavy rain.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Lightning can cause serious injury or
death. Visibility will be poor and hydroplaning is
possible.
Locations impacted include...
Sidney, Piqua, Versailles, Covington, Newport, Bradford, Fort
Loramie, Hardin, Webster, Russia, Gettysburg, Port Jefferson, Osgood,
Lockington, Yorkshire, Union Corners, Polo, Newbern, Darke County
Airport, and Maplewood.
This includes I-75 in Ohio between mile markers 77 and 99.
If outdoors, consider seeking shelter inside a sturdy building.
Motorists should slow down and use extra caution.
When thunder roars, go indoors! Do not stay in the open or seek
shelter under trees when lightning threatens.
To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.
&&
LAT...LON 4021 8407 4008 8422 4005 8459 4036 8451
4036 8444 4038 8443 4039 8400
TIME...MOT...LOC 0355Z 266DEG 20KT 4026 8452
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH
KCSpecial Weather Statement
National Weather Service Wilmington OH
1237 AM EDT Wed Jun 10 2026
OHZ043-044-051-052-100515-
Champaign OH-Logan OH-Shelby OH-Miami OH-
1237 AM EDT Wed Jun 10 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN
SHELBY...NORTHWESTERN CHAMPAIGN...SOUTHWESTERN LOGAN AND NORTHEASTERN
MIAMI COUNTIES THROUGH 115 AM EDT...
At 1237 AM EDT, a strong thunderstorm was located 7 miles east of
Piqua, moving northeast at 35 mph.
HAZARD...Wind gusts up to 45 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Piqua, Urbana, St. Paris, De Graff, Quincy, Christiansburg, Fletcher,
Rosewood, Westville, Lippincott, Carysville, Ballou, Plattsville,
Springhills, Kiser Lake State Park, and Millerstown.
If outdoors, consider seeking shelter inside a sturdy building.
To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.
&&
LAT...LON 4004 8405 4006 8412 4018 8421 4034 8392
4013 8371
TIME...MOT...LOC 0437Z 239DEG 32KT 4017 8411
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH
McGinnisSpecial Weather Statement
National Weather Service Wilmington OH
1243 AM EDT Wed Jun 10 2026
OHZ052-053-100530-
Champaign OH-Clark OH-
1243 AM EDT Wed Jun 10 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN
CHAMPAIGN AND NORTHWESTERN CLARK COUNTIES THROUGH 130 AM EDT...
At 1243 AM EDT, a strong thunderstorm was located near New Carlisle,
moving northeast at 25 mph.
HAZARD...Wind gusts up to 45 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Springfield, Urbana, Northridge, North Hampton, Tremont City, Mutual,
Thackery, Catawba Station, Terre Haute, Lawrenceville, Dialton, and
Powhattan.
If outdoors, consider seeking shelter inside a sturdy building.
To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.
&&
LAT...LON 4003 8358 3994 8392 4004 8404 4014 8371
TIME...MOT...LOC 0443Z 241DEG 22KT 4001 8395
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH
McGinnisPreliminary Local Storm Report
National Weather Service Wilmington OH
138 AM EDT Wed Jun 10 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0120 AM Tstm Wnd Gst 3 ESE Wilmington 39.43N 83.78W
06/10/2026 M46 MPH Clinton OH ASOS
&&The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
High water was reported on Pine Road near State Line Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2026Every state in 2026This day in weather historyWarnings in Ohio, June 2026
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: 1339079.