Alert archive / Kentucky / Tornado Warnings in 2026
Tornado Warning 55, NWS Wilmington, OH
NWS Wilmington, OH issued this tornado warning at Aug 11, 2026, 4:10 PM EDT for Grant County, Pendleton County, Kentucky. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2026, 4:10 PM EDT (20:10 UTC)
- Expired
- Aug 11, 2026, 4:30 PM EDT
- In force
- 20 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Grant County, KY, Pendleton County, KY
The radar
The Cincinnati radar (KILN), 113 km from the middle of the area, began a volume at 20:11 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.
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 11, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.2 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 3952 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 188 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 13.3
The text
As transmitted.
778
WFUS51 KILN 112010
TORILN
KYC081-191-112045-
/O.NEW.KILN.TO.W.0055.260811T2010Z-260811T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington OH
410 PM EDT Tue Aug 11 2026
The National Weather Service in Wilmington has issued a
* Tornado Warning for...
Southeastern Grant County in northern Kentucky...
Southwestern Pendleton County in northern Kentucky...
* Until 445 PM EDT.
* At 410 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Williamstown, moving southeast at 45 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...
Williamstown, Dry Ridge, Corinth, Marcus, Camp Northward, Cherry
Grove, Cordova, and Stewartsville.
This includes I-75 in Kentucky between mile markers 143 and 157.
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 3862 8467 3869 8455 3856 8439 3856 8442
3855 8443 3854 8442 3853 8444 3854 8445
3853 8445 3854 8447 3851 8449 3851 8452
3847 8458
TIME...MOT...LOC 2010Z 325DEG 39KT 3863 8459
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Aiena1 follow-up statement
832
WWUS51 KILN 112030
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
430 PM EDT Tue Aug 11 2026
KYC081-191-112039-
/O.CAN.KILN.TO.W.0055.000000T0000Z-260811T2045Z/
Grant KY-Pendleton KY-
430 PM EDT Tue Aug 11 2026
...THE TORNADO WARNING FOR SOUTHEASTERN GRANT AND SOUTHWESTERN
PENDLETON COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northern Kentucky.
Please report previous tornadoes, wind damage or hail to the National
Weather Service by going to our website at weather.gov/iln and
submitting your report via social media.
&&
LAT...LON 3862 8467 3869 8455 3856 8439 3856 8442
3855 8443 3854 8442 3853 8444 3854 8445
3853 8445 3854 8447 3851 8449 3851 8452
3847 8458
TIME...MOT...LOC 2029Z 325DEG 39KT 3845 8443
$$
AienaWhat 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 Aug 11, 3:14 PM EDT, 56 minutes earlier. Its key messages:
- 1) Severe weather and flash flooding are possible with thunderstorms through early this evening. 2) Additional thunderstorms will continue to pose a flash flood risk tonight through Wednesday night. 3) Additional chances for thunderstorms and heavy rainfall are possible through the end of the week with drier weather possible this weekend.
Area forecast discussion, Aug 11, 3:14 PM EDT, 56 minutes before
Area Forecast Discussion
National Weather Service Wilmington OH
314 PM EDT Tue Aug 11 2026
.WHAT HAS CHANGED...
Flash flood risk has increased in some areas for tonight/early
Wednesday.
&&
.KEY MESSAGES...
1) Severe weather and flash flooding are possible with thunderstorms
through early this evening.
2) Additional thunderstorms will continue to pose a flash flood risk
tonight through Wednesday night.
3) Additional chances for thunderstorms and heavy rainfall are
possible through the end of the week with drier weather possible this
weekend.
&&
.DISCUSSION...
The latest round of thunderstorms has begun affecting the area early
this afternoon. Based on latest trends, areas near and south of I-70
look to see the greatest risk for severe weather with this latest
round. The environment continues to be supportive of
damaging/destructive wind gusts, where localized gusts could reach
70 to 80 mph leading to more significant local damage compared to 60
mph wind gusts. In addition, there is the risk for isolated tornadoes
within line segments.
Storm motion will tend to be to the southeast, limiting training, however
due to high rainfall rates localized flash flooding will be possible
particularly in any more vulnerable areas that have received a lot
of rainfall within the past 24 hours, such as portions of
central/east central Ohio.
KEY MESSAGE 2)
Initial convection should move through the area by early this
evening, however any reprieve may be brief as plenty of high
resolution guidance suggests additional storms moving into the area
or developing over the area. The most likely area for this to occur
appears to be over southeast Indiana/southwest Ohio/northern Kentucky
however confidence in exact placement of new nocturnal convection is
rather low and it is possible this could be placed further north.
Wherever the new convection orients itself will have a low end severe
risk for damaging winds. A more significant flash flood risk may
emerge especially if activity aligns northwest to southeast and
repetitively moves across the same area. At this time, a Flood Watch
remains across the entire area through tonight/early Wednesday
morning.
It's unclear whether the balance of Wednesday may see a
another lull in convection, or if another round may impact at least
part of the area. If another round does occur, it could be late in
the day or Wednesday night, with continued risks for flash flooding
and at least a low end severe risk for damaging wind. Later updates
will have to refine and resolve timing/placement details of any late
Wednesday/Wednesday night convection.
KEY MESSAGE 3)
The active pattern may continue through the end of the week, but
details on individual disturbances and timing of hazardous weather
impacts are uncertain. Either way, we continue with a chance of
showers and thunderstorms through Friday. Guidance does suggest the
potential for drying to occur this weekend, and while we can't
complelty rule out a thunderstorm, the trend should be down for the
weekend.
&&
.AVIATION /18Z TUESDAY THROUGH SUNDAY/...
The latest round of storms will impact all terminals this afternoon.
Have allowed for a 2-4 hour TEMPO group for thunderstorms - may have
to amend for higher wind gusts that could be aoa 40 to 50 kt as
thunderstorms approach. A reprieve may be brief, as a lot of
guidance suggests another round of evening/overnight thunderstorms.
Confidence in location and timing are both low, so only have a PROB30
at this time. But as details become more clear, we will be able to
add more details to aviation forecasts.
OUTLOOK...Thunderstorms are possible at times through Friday.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...Flood Watch through Wednesday morning for OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088.
KY...Flood Watch through Wednesday morning for KYZ089>100.
IN...Flood Watch through Wednesday morning for INZ050-058-059-066-
073>075-080.
&&
DISCUSSION...BPP
AVIATION...BPPHazardous weather outlook, Aug 11, 5:14 AM EDT, 10 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Wilmington OH 514 AM EDT Tue Aug 11 2026 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-120915- Wayne-Fayette-Union-Franklin-Ripley-Dearborn-Ohio-Switzerland- Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken- Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke-Shelby-Logan- Delaware-Miami-Champaign-Clark-Madison-Licking-Preble-Montgomery- Greene-Pickaway-Fairfield-Butler-Warren-Clinton-Ross-Hocking- Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto- 514 AM EDT Tue Aug 11 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for east central Indiana, southeast Indiana, northeast Kentucky, northern Kentucky, central Ohio, south central Ohio, southwest Ohio and west central Ohio. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Several rounds of thunderstorms are expected today. Damaging winds, potentially significant, may result in widespread damage and power outages. Isolated tornadoes cannot be ruled out. .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. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.
In the hours before
Local storm report, Aug 11, 3:30 PM EDT, 40 minutes before
Preliminary Local Storm Report
National Weather Service Wilmington OH
330 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0330 PM Hail Harveysburg 39.50N 84.01W
08/11/2026 M0.70 Inch Warren OH Fire Dept/Rescue
&&Local storm report, Aug 11, 3:31 PM EDT, 39 minutes before
Preliminary Local Storm Report
National Weather Service Wilmington OH
331 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0325 PM Tstm Wnd Gst 3 NE Fairfield 39.36N 84.52W
08/11/2026 M53 MPH Butler OH ASOS
ASOS station KHAO Butler County Regional
Airport.
&&Local storm report, Aug 11, 3:45 PM EDT, 25 minutes before
Preliminary Local Storm Report
National Weather Service Wilmington OH
345 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0340 PM Tstm Wnd Gst 3 NE Fairfield 39.36N 84.52W
08/11/2026 M54 MPH Butler OH ASOS
ASOS station KHAO Butler County Regional
Airport.
&&Local storm report, Aug 11, 3:49 PM EDT, 21 minutes before
Preliminary Local Storm Report
National Weather Service Wilmington OH
349 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0344 PM Tstm Wnd Gst 2 SE Hebron 39.04N 84.67W
08/11/2026 M59 MPH Boone KY ASOS
ASOS station KCVG Cincinnati/Northern
Kentucky International Airport.
&&Local storm report, Aug 11, 4:01 PM EDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service Wilmington OH
401 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0349 PM Tstm Wnd Gst 2 W Turpin Hills 39.11N 84.42W
08/11/2026 M68 MPH Hamilton OH ASOS
ASOS station KLUK Cincinnati Lunken Field.
&&Local storm report, Aug 11, 4:03 PM EDT, 7 minutes before
Preliminary Local Storm Report
National Weather Service Wilmington OH
403 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0403 PM Flood Midland 39.31N 83.91W
08/11/2026 Clinton OH Public
68 has high water.
&&The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 10:03 AM EDT | Special Weather Statement | ILN | Boone, Campbell, Kenton | 42 min |
| Aug 11, 10:46 AM EDT | Special Weather Statement | ILN | Lewis, Mason | 29 min |
| Aug 11, 11:24 AM EDT | Special Weather Statement | ILN | Lewis, Mason | 51 min |
| Aug 11, 3:06 PM EDT | Tornado Warning | ILN | Boone | 24 min |
| Aug 11, 3:23 PM EDT | Severe Thunderstorm Warning | ILN | Boone, Campbell, Kenton | 52 min |
| Aug 11, 3:24 PM EDT | Tornado Warning | ILN | Boone, Campbell, Gallatin, Kenton | 36 min |
| Aug 11, 3:31 PM EDT | Tornado Warning | ILN | Boone, Campbell, Kenton | 29 min |
| Aug 11, 3:47 PM EDT | Severe Thunderstorm Warning | ILN | Boone, Campbell, Gallatin, Grant, Kenton, Pendleton | 43 min |
| Aug 11, 3:49 PM EDT | Flash Flood Warning | ILN | Boone, Campbell, Kenton | 3 hr |
| Aug 11, 3:51 PM EDT | Tornado Warning | ILN | Boone, Gallatin, Grant, Kenton, Pendleton | 24 min |
| Aug 11, 3:55 PM EDT | Tornado Warning | ILN | Bracken, Campbell, Kenton, Pendleton | 35 min |
| Aug 11, 4:06 PM EDT | Severe Thunderstorm Warning | ILN | Boone, Bracken, Campbell, Gallatin, Grant, Kenton and 5 more | 54 min |
| Aug 11, 4:19 PM EDT | Areal Flood Advisory | ILN | Boone, Campbell, Gallatin, Grant, Kenton, Pendleton | 3 hr |
| Aug 11, 4:19 PM EDT | Tornado Warning | ILN | Lewis, Mason | 26 min |
| Aug 11, 4:22 PM EDT | Tornado Warning | ILN | Bracken, Pendleton, Robertson | 23 min |
| Aug 11, 4:28 PM EDT | Tornado Warning | ILN | Lewis | 32 min |
| Aug 11, 4:44 PM EDT | Severe Thunderstorm Warning | ILN | Lewis, Mason | 32 min |
| Aug 11, 5:01 PM EDT | Tornado Warning | ILN | Lewis | 15 min |
| Aug 11, 7:22 PM EDT | Severe Thunderstorm Warning | ILN | Boone, Carroll, Gallatin | 38 min |
| Aug 11, 7:45 PM EDT | Special Weather Statement | ILN | Carroll | 30 min |
| Aug 11, 7:53 PM EDT | Severe Thunderstorm Warning | ILN | Boone, Carroll, Gallatin, Grant, Kenton, Owen and 1 more | 19 min |
Nearby
Tornado Warnings in Kentucky, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.