Alert archive / Ohio / Tornado Warnings in 2026

Tornado Warning 11, NWS Wilmington, OH

June 11, 2026Mercer County, Ohio

NWS Wilmington, OH issued this tornado warning at Jun 11, 2026, 11:18 PM EDT for Mercer County, Ohio. It was in force for 27 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 11, 2026, 11:18 PM EDT (03:18 UTC)
Expired
Jun 11, 2026, 11:45 PM EDT
In force
27 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Mercer County, OH

The radar

The Northern Indiana radar (KIWX), 121 km from the middle of the area, began a volume at 03:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 11, 11:28 PM EDTTSTM WND DMG9 Nw Coldwater, OHHeavy tree and powerline damage moving northeast from Skeels Road toward US-33. Time estimated from radar.
Jun 11, 11:38 PM EDTTSTM WND DMG3 Ssw Mendon, OHRoof blown off barn along US-33. Time estimated from radar.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 11, 9:47 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.3 hours before the alert went out and 153 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2026-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1743 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2026-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1743 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1144 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted.

856 
WFUS51 KILN 120318
TORILN
OHC107-120345-
/O.NEW.KILN.TO.W.0011.260612T0318Z-260612T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington OH
1118 PM EDT Thu Jun 11 2026

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  Northern Mercer County in west central Ohio...

* Until 1145 PM EDT.

* At 1117 PM EDT, a severe thunderstorm capable of producing a
  tornado was located near Geneva, moving east at 60 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Rockford, Mendon, Chattanooga, Neptune, and Tama.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 4073 8446 4059 8446 4054 8480 4069 8480
      4073 8453
TIME...MOT...LOC 0317Z 257DEG 50KT 4059 8486 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

McGinnis
3 follow-up statements
831 
WWUS51 KILN 120325
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
1125 PM EDT Thu Jun 11 2026

OHC107-120345-
/O.CON.KILN.TO.W.0011.000000T0000Z-260612T0345Z/
Mercer OH-
1125 PM EDT Thu Jun 11 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR NORTHERN
MERCER COUNTY...

At 1125 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Rockford, moving east at 55 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Rockford, Mendon, Chattanooga, Neptune, and Tama.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 4073 8446 4059 8446 4054 8480 4069 8480
      4073 8453
TIME...MOT...LOC 0325Z 258DEG 49KT 4060 8471 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

McGinnis
644 
WWUS51 KILN 120333
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
1133 PM EDT Thu Jun 11 2026

OHC107-120345-
/O.CON.KILN.TO.W.0011.000000T0000Z-260612T0345Z/
Mercer OH-
1133 PM EDT Thu Jun 11 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR
NORTHEASTERN MERCER COUNTY...

At 1133 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Celina, moving east at 60 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Mendon, Neptune, and Tama.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 4073 8446 4059 8446 4057 8461 4062 8464
      4071 8464 4073 8453
TIME...MOT...LOC 0333Z 257DEG 50KT 4063 8455 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

McGinnis
690 
WWUS51 KILN 120341
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
1141 PM EDT Thu Jun 11 2026

OHC107-120351-
/O.EXP.KILN.TO.W.0011.000000T0000Z-260612T0345Z/
Mercer OH-
1141 PM EDT Thu Jun 11 2026

...THE TORNADO WARNING FOR NORTHEASTERN MERCER COUNTY WILL EXPIRE AT
1145 PM EDT...

The storm which prompted the warning has weakened below severe limits
and no longer appears capable of producing a tornado. Therefore, the
warning will be allowed to expire.  However, gusty winds are still
possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 300 AM EDT for
west central Ohio.

Please report previous tornadoes, wind damage or hail to the National
Weather Service by going to our website at weather.gov/iln and
submitting your report via social media.

Remember, a Severe Thunderstorm Warning still remains in effect for
Mercer County. 

&&

LAT...LON 4073 8446 4059 8446 4057 8461 4062 8464
      4071 8464 4073 8453
TIME...MOT...LOC 0341Z 270DEG 50KT 4065 8441 

$$

McGinnis

What forecasters said that day

The local office's own words before this tornado warning went out, 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 this tornado warning went out at Jun 11, 8:18 PM EDT, 3 hours earlier. Its key messages:

  • 1) A line of strong to severe storms will move into the region tonight, bringing the potential for gusty to isolated damaging winds. The complex of storms will slowly be weakening with eastward progression late into the night, with the greatest severe threat near/west of I-71. 2) A drier and somewhat cooler airmass will move in behind the cold front for Friday afternoon and into Saturday. A secondary cold front will bring additional showers and thunderstorms on Sunday along with cooler temperatures for early next week.
Area forecast discussion, Jun 11, 8:18 PM EDT, 3 hours before
Area Forecast Discussion
National Weather Service Wilmington OH
818 PM EDT Thu Jun 11 2026

.WHAT HAS CHANGED...
Isolated storms possible this afternoon and
evening. Another chance for showers and storms later tonight.

&&

.KEY MESSAGES...
1) A line of strong to severe storms will move into the region
tonight, bringing the potential for gusty to isolated damaging winds.
The complex of storms will slowly be weakening with eastward
progression late into the night, with the greatest severe threat
near/west of I-71.

2) A drier and somewhat cooler airmass will move in behind the cold
front for Friday afternoon and into Saturday. A secondary cold front
will bring additional showers and thunderstorms on Sunday along with
cooler temperatures for early next week.

&&

.DISCUSSION...
KEY MESSAGE 1)
Over the course of the past several hours, we have seen a surge of
high theta-e to the N/NE overspreading a larger portion of the OH
Vly, including the ILN FA. This is helping further destabilize the
environment, despite the rapid approach of sunset. Although the
BL/near sfc layer will stabilize/cool somewhat past sunset, a
strongly-unstable environment, characterized by MLCAPE >2500 J/kg,
will still be entrenched across parts of the ILN FA, particularly
near/W of the I-71 corridor.

The thermodynamic environment, along with the approach of better
LL/deep-layer shear and forcing, lends itself to some concern for
the maintenance of the storm complex currently upstream in IL further
into the local area than previously expected. This concern is
greatest for parts of EC IN and WC OH where the better overlap of LL
shear and strong instby will evolve as we approach midnight, helping
maintain some degree of organization with the bowing line. There is
an increasing signal, including within some of the recent WoFS
guidance, for the potential for strong/severe storms to impact NW/W
third of the ILN FA around midnight, with damaging winds being the
primary threat as the bowing line progresses E/SE through 2 AM. This
will especially be of concern from about Wayne Co IN to Hardin Co OH
and points further to the NW, including much of WC OH.

There is the expectation for the line to gradually weaken with SE
extent due to a less favorable environment near/SE of I-71. This
weakening will be most pronounced by/after 2 AM as the complex
becomes increasingly outflow-dominant. This being said, the DCAPE
environment will still be plenty supportive of downward transfer of
winds from aloft to the sfc. This, combined with quite a bit of
momentum of the complex, means that the potential for gusty winds
will likely extend well beyond even the maintenance of thunder
itself. It is likely that, at some point within the weakening
organization, that a pronounced outflow will still bring with it
gusty winds even in the absence of thunder. This very well could
reach locales SE of the I-71 corridor near/after 2 AM.

Brief torrential rainfall rates is also expected with the arrival of
the line, particularly in EC IN and WC OH. However, with the steady
forward progression of the MCS, prolonged heavy rain and flooding
are not expected to be a primary threat.

KEY MESSAGE 2)
A cold front associated with a low in Canada pushes east through the
region on Friday morning. Drier and slightly cooler air moves into
the Ohio Valley behind the front. High pressure progresses across
the area on Saturday bringing dry conditions and near average
temperatures.

Shower and storm chances increase once again on Sunday when another
cold front associated with a low far to the north in Canada moves
through. There could be a window for severe weather as some models
are depicting instability overlapping with increasing shear ahead of
the front during the day on Sunday. The best potential for storms
appears to be in the southeast where frontal passage occurs later in
the day.

Cooler and drier air arrives for the start of next week behind the
front.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
A band of SCT VFR Cu along the leading edge of a surge of higher
moisture continues to work its way NE, initiating a few spotty SHRA
in the process. This would only be of concern for KDAY/KCMH/KLCK
through the first hour or so of the TAF period before the focus will
shift quickly to the incoming line of storms expected to be near KDAY
by about 05z.

There is the expectation for a mature, but steadily weakening, line
of storms to progress to the SE near/through the local terminals
between about 05z-09z. While there is some uncertainty regarding
maintenance of TS with eastward extent, confidence is high enough
that included a TEMPO TS at KDAY. Better confidence in coverage and
timing of this decaying complex allowed for TEMPO SHRA to be added
elsewhere at KCVG/KLUK/KILN/KCMH/KDAY for a 2-3 hour period each. The
main item of concern with the arrival of this line will be
abrupt/drastic changes in wind speed, direction, and visibility.
However, these will be added to the fcst as confidence increases in
the likely impacts at each site.

The TSRA/SHRA will push off to the SE quickly by/after 09z, with dry
conditions thereafter.

There will likely be some SW LLWS on the order of about 40kts
coincident with the bowing line of TSRA/SHRA, but this will relax
with the passage of the convection. SW sfc winds around 8-10kts will
go out of the WNW following the FROPA by 09z, with MVFR CIGs expected
to briefly overspread the sites during the several hours around
daybreak. These MVFR CIGs will lift/scatter quickly as drier air
rushes in between 15z-18z in the post-frontal environment.

OUTLOOK... Thunderstorms possible again on Sunday.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

DISCUSSION...Campbell/KC
AVIATION...KC
Hazardous weather outlook, Jun 11, 9:25 PM EDT, 1 hour 53 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
925 PM EDT Thu Jun 11 2026

INZ050-058-059-OHZ026-034-035-042>045-051>053-060-061-130130-
Wayne-Fayette-Union-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Miami-
Champaign-Clark-Preble-Montgomery-
925 PM EDT Thu Jun 11 2026

This Hazardous Weather Outlook is for east central Indiana, central
Ohio and west central Ohio.

.DAY ONE...Tonight.

Thunderstorms will overspread the region tonight. A few strong to
severe storms are likely, with gusty winds to damaging winds being
the primary threat. A tornado cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight.

INZ075-080-KYZ089>100-OHZ056-065-073-074-078>082-088-130130-
Ohio-Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Licking-Fairfield-Ross-
Hocking-Clermont-Brown-Highland-Adams-Pike-Scioto-
925 PM EDT Thu Jun 11 2026

This Hazardous Weather Outlook is for southeast Indiana, northeast
Kentucky, northern Kentucky, central Ohio, south central Ohio and
southwest Ohio.

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

INZ066-073-074-OHZ046-054-055-062>064-070>072-077-130130-
Franklin-Ripley-Dearborn-Delaware-Madison-Greene-Fayette-Pickaway-
Butler-Warren-Clinton-Hamilton-
925 PM EDT Thu Jun 11 2026

This Hazardous Weather Outlook is for southeast Indiana, central
Ohio, southwest Ohio and west central Ohio.

.DAY ONE...Tonight.

Thunderstorms will overspread the region around midnight and beyond.
A few strong to isolated severe storms will be possible, with gusty
winds to isolated damaging winds being the primary threat.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 11:04 PM EDTSevere Thunderstorm WarningILNAuglaize, Darke, Mercer, Shelby56 min
Jun 11, 11:12 PM EDTSevere Thunderstorm WarningILNDarke, Preble63 min
Jun 11, 11:39 PM EDTSevere Thunderstorm WarningILNAuglaize, Champaign, Darke, Hardin, Logan, Miami and 1 more66 min
Jun 11, 11:50 PM EDTSevere Thunderstorm WarningILNButler, Montgomery, Preble55 min
Jun 12, 12:16 AM EDTSpecial Weather StatementILNChampaign, Clark, Union59 min
Jun 12, 12:20 AM EDTSevere Thunderstorm WarningILNChampaign, Clark, Miami40 min
Jun 12, 12:28 AM EDTSpecial Weather StatementILNGreene, Hamilton, Warren47 min
Jun 12, 12:55 AM EDTSpecial Weather StatementILNDelaware, Franklin, Madison50 min
Jun 12, 1:44 AM EDTSpecial Weather StatementILNLicking46 min

Nearby

Tornado Warnings in Ohio, 2026Every tornado warning in 2026Tornadoes in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.