Showers and thunderstorms developed across the Ohio Valley as a low pressure system moved through the region.
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.
Showers and thunderstorms developed across the Ohio Valley as a low pressure system moved through the region.
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 Jul 2, 2:02 PM EST, 46 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Wilmington OH 302 PM EDT Sun Jul 2 2023 .SYNOPSIS... Showers and thunderstorms will develop this afternoon with thunderstorm activity peaking this evening. While scattered showers and embedded storms will also occur into Monday, there is less concern for severe storms. After some clearing Monday evening, more settled weather will set in Tuesday and Wednesday as high pressure builds in. But showers and thunderstorms will return as a cold front moves through the area during the latter part of the week. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... Convection firing in areas of 2-2.5k J/kg CAPE with MesoA showing area of 30-40kt of bulk shear currently over KY lifting further north into southern Ohio over the next few hours. This is in addition to DCAPES of 1000-1200 over the same area. The area with the least confidence of severe storms/possibly a lesser potential would be for areas north of Dayton, where bulk shear and instability not as favorable. While storm motion is fairly progressive, ample moisture will allow storms to produce intense rainfall rates, so will have to watch for clustering storms in a localized flood threat. Initial storm cluster over southeast Indiana/N KY headed into SW Ohio will be a precursor to a better potential for more widespread severe storms to push again into SE Indiana/northern KY beginning about 21z. An area of concern is outflow boundary interaction especially across far southern Ohio and Northern KY, which could back the low level flow, creating a potential for low level rotation. That being said, the main concern is damaging winds with these storms, especially with ample dry air aloft and steep low to mid level lapse rates. Large hail also possible. Strong/severe storms should exit the area after 02z, with lingering showers in the overall trough pattern and cloudy conditions overnight tonight. && .SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/... Through the day Monday, lingering showers with some embedded thunderstorms along the back side of the loose upper level trough as it exits the region slowly. Best chance for scattered coverage of showers and some weak thunderstorms will be through central and south central Ohio, but with isolated showers and a stray storm further west. Diminishing coverage of showers for Monday evening, with just isolated chances mainly in central Ohio through about 02z, with coverage diminishing in areas to the west by 00z. Slightly moderated high temperatures near 80 to lower 80s, and then with partial clearing Monday night, lows in the lower 60s in the west, but still mid and even upper 60s east with later clearing. && .LONG TERM /TUESDAY THROUGH SUNDAY/... There will be a low chance for showers and thunderstorms Tuesday through Wednesday as humid and unstable conditions linger under weak high pressure. Convergence and lift along an approaching front may produce a better chance for convection on Thursday, followed by a diminishing threat Friday behind the front. With the boundary expected to stall south of Ohio, additional showers and thunderstorms will be possible Saturday and Sunday from a persistently unstable weather regime. Near normal highs in the mid and upper 80s are forecast for Tuesday through Thursday in the warm airmass in place across the Ohio Valley. Daytime readings may then fall back a few degrees to the upper 70s to mid 80s from Friday through Sunday as somewhat cooler air takes hold behind the front. && .AVIATION /19Z SUNDAY THROUGH FRIDAY/... Lower clouds are beginning to become more scattered as the region gets into a warm sector ahead of an advancing cold front. This will be short lived as MVFR ceilings will occur in showers and storms in the 18-03z timeframe, with lingering showers afterward. In possible heavy rain, lower MVFR visibilities or even IFR are possible in the 20-00z timeframe. Have timed tempo thunderstorms with expectations of convective models. After the main disturbance pushes through, MVFR ceilings expected overnight and lingering through 13-16z. OUTLOOK...Thunderstorms possible Monday afternoon and evening. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS...JDR NEAR TERM...JDR SHORT TERM...JDR LONG TERM...Coniglio AVIATION...JDR
Hazardous Weather Outlook...CORRECTED National Weather Service Wilmington OH 507 AM EDT Sun Jul 2 2023 INZ050-058-059-OHZ026-034-035-042>046-051>056-060>062-030915- Wayne-Fayette IN-Union IN-Hardin-Mercer-Auglaize-Darke-Shelby-Logan- Union OH-Delaware-Miami-Champaign-Clark-Madison-Franklin OH-Licking- Preble-Montgomery-Greene- 507 AM EDT Sun Jul 2 2023 This Hazardous Weather Outlook is for East Central Indiana, Central Ohio and West Central Ohio. .DAY ONE...Today and tonight. More showers and thunderstorms will move across the region, especially in the afternoon and evening. A few of the storms could be strong to severe with damaging wind gusts the primary threat. In addition, some storms could produce heavy rainfall that could cause localized flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. INZ066-073>075-080-KYZ089>100-OHZ063>065-070>074-077>082-088-030915- Franklin IN-Ripley-Dearborn-Ohio-Switzerland-Carroll-Gallatin-Boone- Kenton-Campbell-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis- Fayette OH-Pickaway-Fairfield-Butler-Warren-Clinton-Ross-Hocking- Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto- 507 AM EDT Sun Jul 2 2023 This Hazardous Weather Outlook is for Southeast Indiana, Northeast Kentucky, Northern Kentucky, Central Ohio, South Central Ohio and Southwest Ohio. .DAY ONE...Today and tonight. More showers and thunderstorms will move across the region, especially in the afternoon and evening. Some of the storms may be severe with damaging wind the primary threat. However, isolated large hail or a tornado cannot be ruled out. In addition, storms will be capable of producing heavy rainfall that could result in localized flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon.
Preliminary Local Storm Report
National Weather Service Wilmington OH
318 PM EDT Sun Jul 2 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0258 PM Hail 1 ENE Vevay 38.75N 85.06W
07/02/2023 E1.00 inch Switzerland IN Public
&&
JDRPreliminary Local Storm Report
National Weather Service Wilmington OH
321 PM EDT Sun Jul 2 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0224 PM Tstm Wnd Dmg 4 NNW Milan 39.17N 85.16W
07/02/2023 Ripley IN Public
Tree down on power line. Time estimated from
radar.
&&
JDRPreliminary Local Storm Report
National Weather Service Wilmington OH
323 PM EDT Sun Jul 2 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0234 PM Tstm Wnd Dmg 4 NNW Milan 39.17N 85.16W
07/02/2023 Ripley IN Public
Corrects previous tstm wnd dmg report from 4
NNW Milan. Tree down on power line. Time
estimated from radar.
&&
JDRSpecial Weather Statement
National Weather Service Wilmington OH
325 PM EDT Sun Jul 2 2023
OHZ070-077-022000-
Hamilton OH-Butler OH-
325 PM EDT Sun Jul 2 2023
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHERN HAMILTON
AND SOUTHEASTERN BUTLER COUNTIES THROUGH 400 PM EDT...
At 325 PM EDT, a strong thunderstorm was located over Dry Ridge,
moving east at 35 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 outdoor
objects.
Locations impacted include...
Cincinnati, Hamilton, Fairfield, Forest Park, Sharonville, Blue Ash,
Springdale, Reading, Montgomery, North College Hill, Madeira,
Wyoming, Mount Healthy, Deer Park, Finneytown, West Chester, Ross,
Taylor Creek, Highpoint and Dry Ridge.
This includes the following Interstates...
I-71 in Ohio between mile markers 11 and 18.
I-74 in Ohio between mile markers 8 and 15.
I-75 in Ohio between mile markers 9 and 25.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a sturdy building.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southwestern Ohio.
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 3940 8435 3929 8435 3929 8434 3919 8433
3917 8471 3930 8472
TIME...MOT...LOC 1925Z 257DEG 32KT 3924 8465
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
McGinnisPreliminary Local Storm Report
National Weather Service Wilmington OH
327 PM EDT Sun Jul 2 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0305 PM Tstm Wnd Dmg 3 SW Sunman 39.20N 85.13W
07/02/2023 Ripley IN Public
Large tree limbs down. Shared by broadcast
meteorologist. Also nickel sized hail.
&&
JDRSpecial Weather Statement
National Weather Service Wilmington OH
334 PM EDT Sun Jul 2 2023
OHZ044-045-052-022015-
Champaign OH-Logan OH-Union OH-
334 PM EDT Sun Jul 2 2023
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF CENTRAL CHAMPAIGN,
LOGAN COUNTIES IN WEST CENTRAL OHIO AND NORTHWESTERN UNION COUNTIES
IN CENTRAL OHIO THROUGH 415 PM EDT...
At 334 PM EDT, a strong thunderstorm was located near Urbana, moving
northeast at 30 mph.
HAZARD...Wind gusts up to 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Hail may cause minor damage to outdoor
objects.
Locations impacted include...
Marysville, Bellefontaine, Urbana, Richwood, West Liberty, North
Lewisburg, De Graff, Belle Center, West Mansfield, Northwood, Quincy,
Rushsylvania, Huntsville, Ridgeway, Woodstock, Valley Hi, Zanesfield,
Cable, Raymond and Westville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a sturdy building.
Residents in these areas should remain alert. If this storm becomes
stronger, then a warning may be needed.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central and west central Ohio.
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 4051 8354 4050 8352 4051 8336 4040 8325
4015 8350 4005 8379 4024 8402 4030 8401
4053 8379
TIME...MOT...LOC 1934Z 226DEG 28KT 4015 8379
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
KCThe Cincinnati radar (KILN), 103 km away, was scanning. The volume nearest the first event began at 19:49 UTC.
6 thunderstorm wind. Local standard time, as filed.
Several trees were downed in the Mount Zion area.
A few trees were downed along State Route 17.
Several trees were downed in the Butler area, including along U.S. 27.
Several trees were downed.
A tree fell onto power lines.
Several trees were downed along Mary Ingles Highway W between Foster and Augusta.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2023Every state in 2023This day in weather historyWarnings in Kentucky, July 2023
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: 1114093, 1114094, 1114095, 1114096, 1114097, 1114098.