Alert archive / Indiana / Flash Flood Warnings in 2026

Flash Flood Warning 45, NWS Wilmington, OH

August 7, 2026Franklin County, Indiana

NWS Wilmington, OH issued this flash flood warning at Aug 7, 2026, 2:46 PM EDT for Franklin County, Indiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 7, 2026, 2:46 PM EDT (18:46 UTC)
Expired: Aug 7, 2026, 5:45 PM EDT
In force: 3 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

County Franklin County, IN

The radar

The Cincinnati radar (KILN), 106 km from the middle of the area, began a volume at 18:48 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.8 hours before the alert went out and 108 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1415 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 793 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Aug 7, 1:42 PM EDT, 1 hour 4 minutes earlier. Its key messages:

1) Showers and thunderstorms will be possible at times over the weekend and through the middle of next week.

Area forecast discussion, Aug 7, 1:42 PM EDT, 1 hour 4 minutes before

Area Forecast Discussion
National Weather Service Wilmington OH
142 PM EDT Fri Aug 7 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...
1) Showers and thunderstorms will be possible at times over the
weekend and through the middle of next week.

&&

.DISCUSSION...
KEY MESSAGE 1)
The airmass across the area has destabilized this afternoon with ML
Capes up into the 1500-2000 J/KG range. This, combined with weak mid
level energy moving through the Ohio Valley, will lead to fairly
widespread showers and thunderstorms this afternoon into this
evening. Effective bulk shear has nudged up into the 20-30 knot
range and DCAPEs are pushing up close to 1000 J/KG, so suppose a few
strong to possibly severe storms could be possible. The main threat
would be damaging winds this afternoon into early evening along with
locally heavy rainfall.

The broad upper level trough over the Great Lakes will begin to
deepen somewhat as we head into early to mid next week. With
continued embedded rounds of mid level energy/weak short waves
moving through the trough, we will continue to see occasional
chances for showers and thunderstorms at times through early to mid
next week. As the flow begins to gradually increase, there will be
an uptick in deeper layer shear through this time period. As a
result, it looks like there could be a better severe threat early to
mid next week. With a warm and moist airmass in place, PWs will
remain relatively high, so locally heavy rainfall could lead to an
increased flooding threat through this period, especially in areas
that see repeated rounds of storms.

Somewhat better northwest flow aloft will develop through the end of
the week. This should lead to a drier and cooler trend toward the
end of the forecast period.

&&

.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
An upper level disturbance moving through the Ohio Valley will lead
to occasional showers and thunderstorms this afternoon into tonight.
Some locally heavy rainfall will be possible with the stronger
storms and this could lead to brief periods of LIFR conditions at the
TAF sites into this evening. As the disturbance moves off to the
east, expect a decreasing trend in pcpn overnight. Some areas of
mainly MVFR fog be possible later tonight into early Saturday
morning. Otherwise, as we destabilize through the day on Saturday,
some isolated showers and thunderstorms will be possible through the
afternoon.

OUTLOOK...Thunderstorms are possible at times through Wednesday.

&&

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

&&

DISCUSSION...JGL
AVIATION...JGL

Hazardous weather outlook, Aug 7, 1:44 PM EDT, 1 hour 2 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
144 PM EDT Fri Aug 7 2026

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-081100-
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-
144 PM EDT Fri Aug 7 2026

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...This afternoon and tonight.

Scattered showers and thunderstorms are expected into tonight.
A few strong to severe storms will be possible into this evening with
damaging wind the main threat. Locally heavy rainfall can also be
expected leading to an isolated flood threat.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Intermittent showers and thunderstorms will be found through
Wednesday. Locally heavy rainfall and chances for damaging winds are
the primary threats.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 7, 10:28 AM EDT, 4 hours 18 minutes before

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Local storm report, Aug 7, 12:21 PM EDT, 2 hours 25 minutes before

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Special weather statement, Aug 7, 2:27 PM EDT, 19 minutes before

Special Weather Statement
National Weather Service Wilmington OH
227 PM EDT Fri Aug 7 2026

OHZ061-062-071-071900-
Montgomery OH-Warren OH-Greene OH-
227 PM EDT Fri Aug 7 2026

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHERN WARREN...
WESTERN GREENE AND SOUTHERN MONTGOMERY COUNTIES THROUGH 300 PM EDT...

At 227 PM EDT, a strong thunderstorm was located over Kettering,
moving east at 20 mph.

HAZARD...Wind gusts up to 45 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Hail may cause minor damage to
         vegetation.

Locations impacted include...
Dayton, Kettering, Middletown, Beavercreek, Fairborn, Xenia,
Miamisburg, Springboro, Franklin, Bellbrook, Moraine, Carlisle,
Oakwood, Wright-Patterson AFB, West Carrollton, Cedarville,
Waynesville, Wilberforce, Riverside, and Germantown.

This includes I-75 in Ohio between mile markers 35 and 56.

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 3982 8414 3974 8377 3957 8396 3957 8398
      3955 8398 3952 8433 3953 8434 3955 8433
      3954 8435 3957 8437 3959 8437 3959 8438
      3964 8442
TIME...MOT...LOC 1827Z 287DEG 19KT 3969 8414

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...45 MPH

Hatzos

Special weather statement, Aug 7, 2:32 PM EDT, 14 minutes before

Special Weather Statement
National Weather Service Wilmington OH
232 PM EDT Fri Aug 7 2026

OHZ078-079-071900-
Clermont OH-Brown OH-
232 PM EDT Fri Aug 7 2026

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHERN CLERMONT
AND NORTHWESTERN BROWN COUNTIES THROUGH 300 PM EDT...

At 231 PM EDT, a strong thunderstorm was located over Batavia, moving
east at 15 mph.

HAZARD...Wind gusts up to 45 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Hail may cause minor damage to
         vegetation.

Locations impacted include...
Milford, Amelia, Mount Orab, Williamsburg, Batavia, Withamsville,
Owensville, Newtonsville, Fayetteville, Mulberry, Chasetown, Clermont
County Airport, Perintown, Greenbush, East Fork State Park, Day
Heights, Willowville, Summerside, and Mount Repose.

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 3904 8430 3921 8427 3924 8391 3910 8389
      3897 8395
TIME...MOT...LOC 1831Z 273DEG 14KT 3912 8418

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...45 MPH

Hatzos

Local storm report, Aug 7, 2:39 PM EDT, 7 minutes before

Preliminary Local Storm Report
National Weather Service Wilmington OH
239 PM EDT Fri Aug 7 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0239 PM     Tstm Wnd Dmg     Downtown Dayton         39.77N 84.19W
08/07/2026                   Montgomery         OH   Broadcast Media

            Tree Down.

&&

Local storm report, Aug 7, 2:46 PM EDT, 0 minutes before

Preliminary Local Storm Report
National Weather Service Wilmington OH
246 PM EDT Fri Aug 7 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0245 PM     Hail             3 ESE Miamisburg        39.63N 84.24W
08/07/2026  M1.00 Inch       Montgomery         OH   Public

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 6:00 AM EDT	Special Weather Statement	ILN	Hamilton	45 min
Aug 7, 6:05 AM EDT	Severe Thunderstorm Warning	ILN	Butler, Clermont, Hamilton, Warren	40 min
Aug 7, 6:23 AM EDT	Special Weather Statement	ILN	Clermont	37 min
Aug 7, 6:39 AM EDT	Special Weather Statement	ILN	Warren	36 min
Aug 7, 6:43 AM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Warren	32 min
Aug 7, 6:54 AM EDT	Special Weather Statement	ILN	Clermont	36 min
Aug 7, 7:05 AM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Clinton, Highland	25 min
Aug 7, 7:10 AM EDT	Special Weather Statement	ILN	Clinton, Warren	35 min
Aug 7, 8:44 AM EDT	Special Weather Statement	ILN	Franklin, Pickaway	31 min
Aug 7, 9:12 AM EDT	Special Weather Statement	ILN	Franklin	33 min
Aug 7, 9:37 AM EDT	Special Weather Statement	ILN	Licking	38 min
Aug 7, 10:03 AM EDT	Special Weather Statement	ILN	Licking	27 min
Aug 7, 10:05 AM EDT	Severe Thunderstorm Warning	ILN	Licking	25 min
Aug 7, 10:28 AM EDT	Special Weather Statement	ILN	Licking	17 min
Aug 7, 2:27 PM EDT	Special Weather Statement	ILN	Greene	33 min
Aug 7, 2:32 PM EDT	Special Weather Statement	ILN	Clermont	28 min
Aug 7, 2:39 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Greene, Montgomery, Warren	38 min
Aug 7, 2:55 PM EDT	Special Weather Statement	ILN	Butler	35 min
Aug 7, 2:58 PM EDT	Areal Flood Advisory	ILN	Clermont, Hamilton	3 hr
Aug 7, 3:05 PM EDT	Flash Flood Warning	ILN	Clermont, Hamilton	3 hr
Aug 7, 3:07 PM EDT	Areal Flood Advisory	ILN	Greene, Montgomery, Preble	2 hr
Aug 7, 3:08 PM EDT	Special Weather Statement	ILN	Clermont	37 min
Aug 7, 3:29 PM EDT	Special Weather Statement	ILN	Highland	31 min
Aug 7, 3:34 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Highland	41 min
Aug 7, 3:38 PM EDT	Areal Flood Advisory	ILN	Butler, Hamilton	3 hr
Aug 7, 4:10 PM EDT	Special Weather Statement	ILN	Adams, Pike	35 min
Aug 7, 4:19 PM EDT	Flash Flood Warning	ILN	Butler, Hamilton	3 hr
Aug 7, 4:23 PM EDT	Areal Flood Advisory	ILN	Brown, Clermont, Highland, Pike	2 hr
Aug 7, 4:29 PM EDT	Special Weather Statement	ILN	Ross	31 min
Aug 7, 4:31 PM EDT	Special Weather Statement	ILN	Brown	29 min
Aug 7, 4:46 PM EDT	Special Weather Statement	ILN	Adams	29 min
Aug 7, 5:08 PM EDT	Special Weather Statement	ILN	Pike, Scioto	37 min
Aug 7, 5:14 PM EDT	Areal Flood Advisory	ILN	Adams, Brown, Clermont	108 min
Aug 7, 5:43 PM EDT	River Flood Warning	ILN	Hamilton	2 hr
Aug 7, 5:46 PM EDT	Areal Flood Advisory	ILN	Pike, Scioto	3 hr
Aug 7, 5:54 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Preble	51 min
Aug 7, 5:58 PM EDT	Areal Flood Advisory	ILN	Clermont, Hamilton	2 hr
Aug 7, 6:34 PM EDT	Areal Flood Advisory	ILN	Scioto	105 min
Aug 7, 6:37 PM EDT	Special Weather Statement	ILN	Butler, Warren	38 min
Aug 7, 2:19 PM EDT	Areal Flood Advisory	ILN	Franklin	3 hr
Aug 7, 4:47 PM EDT	Special Weather Statement	ILN	Fayette	28 min
Aug 7, 5:30 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin, Union	45 min
Aug 7, 5:55 PM EDT	Areal Flood Advisory	ILN	Fayette, Franklin, Union	119 min
Aug 7, 6:08 PM EDT	Flash Flood Warning	ILN	Franklin	112 min
Aug 7, 6:10 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	35 min
Aug 7, 7:20 PM EDT	Special Weather Statement	ILN	Franklin	25 min

Nearby

Flash Flood Warnings in Indiana, 2026 Every flash flood warning 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.