Scattered thunderstorms developed during the afternoon hours along a frontal boundary draped across the Ohio Valley.
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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.
Scattered thunderstorms developed during the afternoon hours along a frontal boundary draped across 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 Sep 1, 5:55 AM EST, 3 hours 5 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Wilmington OH 655 AM EDT Sun Sep 1 2019 .SYNOPSIS... A surface frontal boundary and an upper level disturbance will allow for showers and thunderstorms across the region today. The frontal boundary will push east of the area by Monday evening allowing for dry conditions Monday night into Tuesday. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... A few showers will be possible across northern and eastern portions of the forecast area this morning. This afternoon into the early evening hours expect shower and thunderstorm activity to become more widespread with a surface boundary in the area and an upper level disturbance moving through. Increased precipitation chances across the region due to this. Given the combination of shear and DCAPE values, there will be the potential for isolated strong to severe damaging wind gusts across a large portion of the area. There is less instability across northwestern portions of the forecast area and therefore have less thunder chances in across that area. Also across northwestern portions of the forecast area temperatures will be cooler with precipitation moving into the region quicker and the location taking longer for the surface boundary to push northward. After collaboration went with high temperatures across northwestern portions of the forecast area in the middle 70s, however some locations will likely struggle to make it out of the lower 70s. Tightened up the gradient of temperatures across the region with high temperatures south of the Ohio River in the middle 80s. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/... Although the upper level disturbance will be pushing eastward during the evening hours, the surface frontal boundary will still be in the vicinity tonight allowing for at least some chance for showers into the overnight hours. As this frontal boundary works through the region tonight into Monday morning, expect extensive low clouds to develop and move into the region. Increased cloud cover during this time. In addition, with low level moisture in place have patchy fog in the forecast as well. For Monday, limited most locations to a slight chance of precipitation and then a chance across the Scioto Valley region. There is not a lot in the way of forcing on Monday and the frontal boundary will be pushing out of the area. As low clouds begin to rise Monday morning however there will be the potential for some light shower activity. There is a little bit of instability during the afternoon and therefore have some thunder chances in the afternoon before tapering them off at the end of the short term. Guidance and forecast builder values are very similar for high temperatures on Monday and saw no reason to make any significant changes to temperatures on Monday. && .LONG TERM /MONDAY NIGHT THROUGH SATURDAY/... High pressure will pass across the region Monday night into Tuesday. A cold front will move into the area Tuesday night and continue through the rest of the region Wednesday. Forcing and moisture look limited, so kept any precipitation chances low, primarily across southeastern counties. Another high will build in and then remain until Dorian makes its way up the Atlantic coast and eventually turns northeast. Temperatures will briefly be able to warm above normal ahead of the frontal passage. Temperatures will be below normal for the latter part of the week. && .AVIATION /12Z SUNDAY THROUGH THURSDAY/... A few isolated light showers will be possible near KCMH and KLCK this morning. An upper level disturbance will move through during the afternoon and into the evening hours. This will allow for more coverage of showers and thunderstorms. Continued the shra and vcts mention in the TAFs for now. MVFR cigs cannot be ruled out during the afternoon today, although most cigs will remain VFR. As the frontal boundary moves back to the south tonight winds will shift again. MVFR to IFR cigs will work into the region along with the potential for some fog as well. OUTLOOK...MVFR to IFR cigs and vsbys will be possible into Monday morning. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS...Novak NEAR TERM...Novak SHORT TERM...Novak LONG TERM... AVIATION...Novak
Hazardous Weather Outlook National Weather Service Wilmington OH 419 AM EDT Sun Sep 1 2019 INZ050-058-OHZ026-034-035-042>044-020830- Wayne-Fayette IN-Hardin-Mercer-Auglaize-Darke-Shelby-Logan- 419 AM EDT Sun Sep 1 2019 This Hazardous Weather Outlook is for East Central Indiana and West Central Ohio. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. INZ059-066-073>075-080-KYZ089>100-OHZ045-046-051>056-060>065-070>074- 077>082-088-020830- Union IN-Franklin IN-Ripley-Dearborn-Ohio-Switzerland-Carroll- Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken- Robertson-Mason-Lewis-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- 419 AM EDT Sun Sep 1 2019 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 into this evening. Isolated strong to severe storms will be possible with damaging wind the primary threat. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Cincinnati radar (KILN), 98 km away, was scanning. The volume nearest the first event began at 13:59 UTC.
7 hail, 4 thunderstorm wind, 1 flash flood. Local standard time, as filed.
State Route 56 near Election Road was closed due to high water on Salt Creek.
A tree was downed near Wilmington Road and Clarksville Road.
Several large limbs were snapped from a few trees.
Several reports of 1 to 1.5 inch diameter hail were received from the Plain City area.
Several reports of 1 to 1.75 inch diameter hail were received from the Dublin area.
A very large tree fell onto a house near Hartsdale and Greenburg Drives.
A tree was downed near the intersection of Clark State and Dixon Roads.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2019Every state in 2019This day in weather historyWarnings in Ohio, September 2019
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: 841859, 841860, 841867, 841861, 841868, 841862, 841863, 841864, 841869, 841865, 841870, 841866.