Alert archive / Indiana / Flash Flood Warnings in 2024

Flash Flood Warning 17, NWS Wilmington, OH

July 30, 2024Preble County, Ohio; Union County, Wayne County, Indiana

NWS Wilmington, OH issued this flash flood warning at Jul 30, 2024, 12:50 AM EDT for Preble County, Ohio; Union County, Wayne County, Indiana. It was in force for 107 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 30, 2024, 12:50 AM EDT (04:50 UTC)
Expired
Jul 30, 2024, 2:37 AM EDT
In force
107 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties Union County, IN, Wayne County, IN, Preble County, OH

The radar

The Cincinnati radar (KILN), 96 km from the middle of the area, began a volume at 04:51 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 00:00Z, 4.8 hours before the alert went out and 97 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 2024-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 980 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 2024-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
980 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.3

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 Jul 29, 11:02 PM EDT, 1 hour 48 minutes earlier.

Area forecast discussion, Jul 29, 11:02 PM EDT, 1 hour 48 minutes before
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Hazardous weather outlook, Jul 29, 3:48 PM EDT, 9 hours 2 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
348 PM EDT Mon Jul 29 2024

OHZ026-034-035-042>046-051>056-062>065-073-074-082-302000-
Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Union-Delaware-Miami-
Champaign-Clark-Madison-Franklin-Licking-Greene-Fayette-Pickaway-
Fairfield-Ross-Hocking-Pike-
348 PM EDT Mon Jul 29 2024

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

.DAY ONE...Tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Several rounds of showers and storms will be possible late Wednesday
through Friday. Some locally heavy rain and gusty winds will be the
primary threats with this activity. Repeated rounds of heavy rain
may lead to localized flooding.

Additionally, heat index values in the upper 90s to around 100
degrees will be possible on both Wednesday and Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ060-061-070>072-077>081-
088-302000-
Wayne-Fayette-Union-Franklin-Ripley-Dearborn-Ohio-Switzerland-
Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken-
Robertson-Mason-Lewis-Preble-Montgomery-Butler-Warren-Clinton-
Hamilton-Clermont-Brown-Highland-Adams-Scioto-
348 PM EDT Mon Jul 29 2024

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

.DAY ONE...Tonight.

Storms will affect the area this evening into the overnight hours.
Heavy rain and flooding will be the main threat. Strong to severe
storms will also be possible with damaging winds possible. Also, can
not rule out the potential for a tornado.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Several rounds of showers and storms will be possible late Wednesday
through Friday. Some locally heavy rain and gusty winds will be the
primary threats with this activity. Repeated rounds of heavy rain
may
lead to localized flooding.

Additionally, heat index values in the lower 100s will be possible
on both Wednesday and Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

In the hours before

Special weather statement, Jul 29, 11:26 PM EDT, 1 hour 24 minutes before
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Local storm report, Jul 29, 11:49 PM EDT, 1 hour 1 minute before
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Special weather statement, Jul 29, 11:49 PM EDT, 1 hour 1 minute before
Special Weather Statement
National Weather Service Wilmington OH
1149 PM EDT Mon Jul 29 2024

OHZ060-061-070-071-300415-
Montgomery OH-Warren OH-Butler OH-Preble OH-
1149 PM EDT Mon Jul 29 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN
PREBLE...NORTHEASTERN BUTLER...NORTHWESTERN WARREN AND SOUTHWESTERN
MONTGOMERY COUNTIES THROUGH 1215 AM EDT...

At 1148 PM EDT, a strong thunderstorm was located near Gratis, moving
east at 10 mph.

HAZARD...Wind gusts up to 40 mph and very heavy rain.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Visibility will be poor and hydroplaning
         is possible.

Locations impacted include...
Middletown, Miamisburg, Lebanon, Springboro, Monroe, Trenton,
Franklin, Carlisle, South Middletown, West Carrollton, Gratis,
Hunter, Germantown, West Elkton, Centerville, Jacksonburg, Poast Town
Heights, and Five Points.

This includes I-75 in Ohio between mile markers 31 and 45.

If outdoors, consider seeking shelter inside a sturdy building.

Motorists should slow down and use extra caution.

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 3952 8458 3968 8453 3965 8417 3944 8423
TIME...MOT...LOC 0348Z 286DEG 9KT 3958 8446

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Aiena
Special weather statement, Jul 29, 11:57 PM EDT, 53 minutes before
Special Weather Statement
National Weather Service Wilmington OH
1157 PM EDT Mon Jul 29 2024

OHZ054-300445-
Madison OH-
1157 PM EDT Mon Jul 29 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF EAST CENTRAL
MADISON COUNTIES THROUGH 1245 AM EDT...

At 1157 PM EDT, a strong thunderstorm was located over London, moving
northeast at 20 mph.

HAZARD...Wind gusts up to 40 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...
London, Jefferson, West Jefferson, Lake Darby, Lafayette, Interstate
70 at US Route 42, Madison Lake, and Lilly Chapel.

This includes I-70 in Ohio between mile markers 76 and 86.

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 8325 4001 8325 4000 8326 3999 8325
      3997 8325 3994 8323 3993 8323 3992 8325
      3987 8325 3983 8344 3992 8349 4003 8326
TIME...MOT...LOC 0357Z 235DEG 19KT 3990 8341

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

McGinnis
Special weather statement, Jul 30, 12:06 AM EDT, 44 minutes before
Special Weather Statement
National Weather Service Wilmington OH
1206 AM EDT Tue Jul 30 2024

INZ050-059-OHZ042-060-300445-
Wayne IN-Union IN-Darke OH-Preble OH-
1206 AM EDT Tue Jul 30 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF WAYNE AND
NORTHEASTERN UNION COUNTIES IN EAST CENTRAL INDIANA...NORTHWESTERN
PREBLE AND SOUTHERN DARKE COUNTIES IN WEST CENTRAL OHIO THROUGH 1245
AM EDT...

At 1206 AM EDT, a strong thunderstorm was located near Centerville,
moving southeast at 35 mph.

HAZARD...Wind gusts up to 45 mph and very heavy rain.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Visibility will be poor and hydroplaning
         is possible.

Locations impacted include...
Richmond, Eaton, Centerville, New Paris, New Madison, Fountain City,
Abington, Eldorado, West Manchester, Greens Fork, East Germantown,
Spring Grove, Bethel, Hollansburg, Gordon, Boston, Ithaca, Castine,
Whitewater, and Richmond Municipal Airport.

This includes the following Interstates...
 I-70 in Indiana between mile markers 135 and 156.
 I-70 in Ohio between mile markers 0 and 12.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a sturdy building.

Motorists should slow down and use extra caution.

Residents in these areas should remain alert. If this storm becomes
stronger, then a warning may be needed.

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 3986 8521 4001 8497 3997 8445 3961 8480
TIME...MOT...LOC 0406Z 305DEG 30KT 3986 8495

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH

McGinnis
Special weather statement, Jul 30, 12:44 AM EDT, 6 minutes before
Special Weather Statement
National Weather Service Wilmington OH
1244 AM EDT Tue Jul 30 2024

OHZ060-061-070-300530-
Montgomery OH-Butler OH-Preble OH-
1244 AM EDT Tue Jul 30 2024

...A CLUSTER OF STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF
SOUTHEASTERN PREBLE COUNTY IN WEST CENTRAL OHIO...NORTHEASTERN
BUTLER...NORTHWESTERN WARREN COUNTIES IN SOUTHWESTERN OHIO AND
SOUTHWESTERN MONTGOMERY COUNTIES IN WEST CENTRAL OHIO THROUGH 130 AM
EDT...

At 1244 AM EDT, a cluster of strong thunderstorms were located along
a line extending from near Lewisburg to near West College Corner,
moving southeast at 45 mph.

HAZARD...Wind gusts up to 45 mph and very heavy rain.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Visibility will be poor and hydroplaning
         is possible.

Locations impacted include...
Dayton, Hamilton, Trotwood, Miamisburg, Trenton, Eaton, Moraine, West
Carrollton, Camden, West Alexandria, Gratis, Seven Mile,
Williamsdale, Darrtown, Germantown, New Lebanon, New Miami,
Farmersville, Somerville, and West Elkton.

This includes I-70 in Ohio near mile marker 13.

Motorists should slow down and use extra caution.

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 3984 8458 3971 8423 3941 8455 3961 8482
TIME...MOT...LOC 0444Z 296DEG 38KT 3985 8449 3959 8479

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...45 MPH

McGinnis

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 8:16 PM EDTSpecial Weather StatementILNGreene29 min
Jul 29, 9:50 PM EDTAreal Flood AdvisoryILNPreble68 min
Jul 29, 9:51 PM EDTTornado WarningILNButler39 min
Jul 29, 9:59 PM EDTSpecial Weather StatementILNMontgomery31 min
Jul 29, 10:22 PM EDTSpecial Weather StatementILNPreble23 min
Jul 29, 10:29 PM EDTSpecial Weather StatementILNButler31 min
Jul 29, 10:58 PM EDTFlash Flood WarningILNPreble4 hr
Jul 29, 11:03 PM EDTSpecial Weather StatementILNFayette27 min
Jul 29, 11:17 PM EDTAreal Flood AdvisoryILNPreble4 hr
Jul 29, 11:26 PM EDTSpecial Weather StatementILNFayette34 min
Jul 29, 11:40 PM EDTFlash Flood WarningILNPreble3 hr
Jul 29, 11:49 PM EDTSpecial Weather StatementILNButler26 min
Jul 29, 11:55 PM EDTAreal Flood AdvisoryILNButler, Montgomery, Warren3 hr
Jul 29, 11:56 PM EDTAreal Flood AdvisoryILNDarke, Preble8 hr
Jul 29, 11:57 PM EDTSpecial Weather StatementILNMadison48 min
Jul 30, 12:44 AM EDTSpecial Weather StatementILNButler, Preble46 min
Jul 30, 1:04 AM EDTSpecial Weather StatementILNButler, Hamilton, Warren56 min
Jul 30, 1:10 AM EDTFlash Flood WarningILNButler, Montgomery, Warren88 min
Jul 30, 1:14 AM EDTAreal Flood AdvisoryILNButler, Warren7 hr
Jul 30, 1:19 AM EDTSevere Thunderstorm WarningILNButler, Montgomery, Warren41 min
Jul 30, 1:37 AM EDTSevere Thunderstorm WarningILNBrown, Clermont, Clinton, Highland, Warren38 min
Jul 30, 1:48 AM EDTTornado WarningILNClinton27 min
Jul 30, 1:55 AM EDTAreal Flood AdvisoryILNButler, Warren6 hr
Jul 30, 1:55 AM EDTTornado WarningILNClinton, Highland22 min
Jul 30, 2:09 AM EDTSevere Thunderstorm WarningILNBrown, Clinton, Fayette, Highland35 min
Jul 30, 2:34 AM EDTAreal Flood AdvisoryILNPreble5 hr
Jul 30, 2:35 AM EDTAreal Flood AdvisoryILNPreble5 hr
Jul 30, 2:36 AM EDTSpecial Weather StatementILNRoss24 min
Jul 30, 2:37 AM EDTAreal Flood AdvisoryILNPreble5 hr
Jul 30, 2:38 AM EDTAreal Flood AdvisoryILNButler, Montgomery, Warren5 hr
Jul 30, 3:18 AM EDTSevere Thunderstorm WarningILNAdams, Brown, Scioto57 min
Jul 30, 3:59 AM EDTSpecial Weather StatementILNScioto31 min
Jul 30, 4:18 AM EDTSevere Thunderstorm WarningILNScioto29 min
Jul 30, 2:15 AM EDTSpecial Weather StatementILNBracken, Grant, Pendleton45 min
Jul 30, 3:00 AM EDTSpecial Weather StatementILNMason45 min
Jul 29, 8:24 PM EDTSevere Thunderstorm WarningILNWayne36 min
Jul 29, 8:26 PM EDTSevere Thunderstorm WarningILNFayette, Franklin, Union34 min
Jul 29, 8:56 PM EDTSevere Thunderstorm WarningILNFayette, Wayne49 min
Jul 29, 8:58 PM EDTSpecial Weather StatementILNFranklin32 min
Jul 29, 9:00 PM EDTTornado WarningILNFayette, Wayne30 min
Jul 29, 9:05 PM EDTTornado WarningILNFranklin25 min
Jul 29, 9:28 PM EDTTornado WarningILNFayette, Union, Wayne32 min
Jul 29, 9:29 PM EDTSpecial Weather StatementILNFranklin31 min
Jul 29, 9:49 PM EDTSevere Thunderstorm WarningILNFayette, Union, Wayne41 min
Jul 30, 12:06 AM EDTSpecial Weather StatementILNWayne39 min
Jul 30, 3:38 AM EDTRiver Flood WarningILNUnion, Wayne3 hr

Nearby

Flash Flood Warnings in Indiana, 2024Flash Flood Warnings in Ohio, 2024Every flash flood warning in 2024

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.