Thunderstorms developed during the afternoon and evening hours ahead of a cold front moving through the Ohio Valley.
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.
Thunderstorms developed during the afternoon and evening hours ahead of a cold front moving through the Ohio Valley.
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 17, 1:40 PM EST, 2 hours 56 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Wilmington OH 240 PM EDT Mon Jul 17 2023 .SYNOPSIS... A cold front will move southeast through the Great Lakes and Ohio Valley tonight, bringing a chance of showers and thunderstorms. Precipitation chances will decrease into Tuesday as stalls out near the Ohio River. Additional chances for showers and thunderstorms are expected Tuesday night into Wednesday as a warm front lifts north into the Ohio Valley. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... Scattered thunderstorms across southeast portions of our area will continue to move off to the east through mid to late afternoon. Elsewhere across our area, the airmass will continue to destabilize through the rest of the afternoon ahead of a weak cold front that will sag southeast into our area through this evening. This will lead to more widespread shower and thunderstorms development for our northwest and western areas through late afternoon with the storms then moving southeast across much of the rest of our area heading into this evening. Deep layer shear in the 30 to 40 knot range and dcapes pushing up to around 1000 J/KG will support the potential for a few severe storms, with the primary threat being damaging winds along with the potential for some large hail. The front is forecast to stall out across southern portions of our area overnight and this could lead to some shower and thunderstorm activity lingering for areas along and south of the Ohio River. Locally heavy downpours can be expected and with we end up with some training storms, localized flooding may also become a concern. Lows tonight will be in the low to mid 60s. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY/... With the front washing/stalling out along or just to the south of the Ohio River, will linger some slight chance pops across mainly our southern areas during the day on Tuesday. The HRRR smoke model is suggesting some lingering, but less concentrated smoke across the region through the day on Tuesday. It also appears to be pinching off the smoke somewhat, so will hold off on including any mention of haze/smoke in the forecast for now. Highs on Tuesday will be in the upper 70s to low 80s. The models have trended a little farther to the southwest with a mid level short wave/MCS moving through the lower to mid Ohio Valley Tuesday night into Wednesday morning. As a result, will keep pops in the chance category, with the highest pops across our southwest. The exact timing and track of the Tuesday night MCS may affect how things play out through the day on Wednesday. As of now, it looks like the remnant cold front/boundary may lift back north into our area as a warm front through the day on Wednesday. This, combined with some additional mid level energy, should result in some decent chances for showers and storms, especially across our southern areas. Highs on Wednesday will be in the 80 to 85 degree range. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... On Wednesday night, an upper level trough will be moving east through northern Quebec, with a second upper level trough moving ESE into the northern Great Lakes. To the south of these features, the flow over the Ohio Valley will be pivoting from northwesterly to westerly, as a a 700mb wave crosses through the area. A surge of theta-e in the low levels is expected heading into Wednesday night, though in reality, this may be disrupted somewhat by the Wednesday morning MCS. Impacts from that MCS will have effects on the forecast for Wednesday night and beyond, so overall confidence is fairly low. Most models do suggest an environment that may become favorable for additional storm development Wednesday night through early Thursday morning, so some PoPs will be maintained. The greatest chance for precipitation during this part of the forecast period will be on Thursday afternoon and evening. The warm sector will become established over the ILN CWA on Thursday, with an area of low pressure moving across the lower peninsula of Michigan, and a cold front trailing behind it to the southwest. This is still a few days away, but early indications are that instability and shear could both be just enough for some risk of strong storms. Cold frontal passage late Thursday into Friday morning will bring in a drier and slightly cooler air mass, with rain much less likely for Friday and Saturday. For Sunday and Monday, confidence is very low in the forecast specifics, but broad troughing will likely be settling into the eastern half of the CONUS, suggesting at least some chance for precipitation will exist. Thursday will likely be the warmest day of the extended period, with highs in the mid to upper 80s. Behind the cold front, Friday and Saturday will be cooler, with highs in the upper 70s to lower 80s. Some warming is possible thereafter. && .AVIATION /18Z MONDAY THROUGH SATURDAY/... Scattered thunderstorms have developed across the Scioto Valley early this afternoon. These storms are moving off to the east and should remain to the south and east of the TAF sites over the next couple of hours. Meanwhile, a cold front will push southeast into the region through this evening before stalling out along the Ohio River late tonight into Tuesday morning. The airmass ahead of the front will continue to destabilize, resulting in additional shower and thunderstorm development late this afternoon and continuing into this evening. Will cover this with a VCTS at the TAF sites with a tempo group for TSRA highlighting the time of the highest threat. Pcpn should then taper off through the overnight hours. Outside of the storms, areas of MVFR to IFR haze will persist into tonight. In addition, some MVFR cig develop will be possible in the wake of the pcpn later tonight and into Tuesday morning. MVFR cigs will lift into VFR later Tuesday morning into the afternoon. OUTLOOK...Thunderstorms possible at times Tuesday night into Thursday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS...JGL NEAR TERM...JGL SHORT TERM...JGL LONG TERM...Hatzos AVIATION...JGL
Hazardous Weather Outlook National Weather Service Wilmington OH 418 AM EDT Mon Jul 17 2023 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-180830- Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio- Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant- Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke- Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison- Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway- Fairfield-Butler-Warren-Clinton-Ross-Hocking-Hamilton-Clermont-Brown- Highland-Adams-Pike-Scioto- 418 AM EDT Mon Jul 17 2023 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. Thunderstorms are expected this afternoon and evening, with the potential for a couple of storms to become severe. The primary severe weather threats would be damaging winds and large hail. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Cincinnati radar (KILN), 70 km away, was scanning. The volume nearest the first event began at 21:35 UTC.
12 thunderstorm wind, 5 hail. Local standard time, as filed.
Several large tree limbs were downed.
A few trees were downed between Morning Sun and College Corner.
A few trees were downed.
A large tree was downed.
A large tree was downed near the intersection of Schul Road and State Route 122.
A large tree fell onto a shed.
The roof of a house was partially torn off in the 7300 block of Timber Wolf Drive.
Five trees were downed in Washington Township.
A large tree was downed along Anderson Road.
A dead tree fell onto a house.
An eight inch diameter tree was downed.
A large tree limb was downed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2023Every state in 2023This day in weather historyWarnings in Ohio, 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: 1114134, 1114135, 1114136, 1114137, 1114138, 1116225, 1116226, 1116227, 1116228, 1116229, 1116235, 1116230, 1116231, 1116232, 1116233, 1116234, 1116236.