Showers and thunderstorms developed during the late afternoon and evening hours ahead of a low pressure system 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.
Showers and thunderstorms developed during the late afternoon and evening hours ahead of a low pressure system 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 May 7, 9:56 AM EST, 2 hours 19 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Wilmington OH 1056 AM EDT Tue May 7 2024 .SYNOPSIS... Several rounds of showers and storms are expected through Thursday amidst a continued warm and humid pattern. Slightly cooler air will filter into the region late in the week, with slightly drier conditions also expected. However, periodic chances for showers will likely linger into the weekend. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... Morning update trended the forecast towards HRRR/RAP blended into current forecast. This seemed on track for T/Td and accounted for line of storms crossing the CWA this morning, with a break behind it. While placement and occurrence of storms in the airmass this afternoon/evening remains in question, the model blend noted above looked to capture probability of rain/storms if not relatively well then well within reason. Weak showers running nw-se that tail off over Warren County have a warm frontal appearance. The airmass difference here is an uptick in dewpoints behind it. Parameters of significant shear and instability remain in place this afternoon for severe weather. This is an all-mode severe weather threat with damaging winds, large hail, isolated flooding, and tornados. Tornado parameters per SPC and some AI forecasts have the entire CWA with a potential of significant tornados >EF2. The AI enhances a more narrow corridor running sw-ne through Cincy metro area, curving northward into Dayton metro area. Previous Discussion: Vigorous low pressure over the northern Plains will lead to a moist southwest flow of air across the Ohio Valley today. A decaying band of showers with isolated thunder is expected to slide east through the region late this morning through early this afternoon. Severe storms are not expected with this band. As a shortwave is ejected northeast from the southern Plains into the Ohio Valley, an increase in mid- level flow and backing low- level winds will be seen in the vertical profile by later in the afternoon. A surge in warm, humid air will likely occur just ahead of the shortwave's arrival. Forecast soundings from the HRRR are concerning, with surface CAPE late this afternoon into the early evening approaching 2,500 J/kg and effective shear reaching around 60 knots. Curved hodographs lead to effective SRH exceeding 200 m^2/s^2. The latest guidance suggests a less forced environment late this afternoon, so scattered, discrete supercells are expected. All hazards appear likely with these storms. High temperatures will reach into the upper 70s to lower 80s. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/... A cold front associated with the shortwave will shift east across the local forecast area late this evening through midnight. While hodographs are a bit less curved for this period, an increase in forcing leads to higher coverage of thunderstorms, and likely a more organized linear mode. Can't rule out some embedded supercells as well based on persistent bulk shear ahead of the front. The shortwave will exit to the east late tonight, leading to a quieter conditions extending into Wednesday. Bright May sunshine allows high temperatures to exceed 80 degrees across the middle Ohio Valley. We may see some increase in cloud cover late in the period as another shortwave begins to eject northeast into the middle Mississippi Valley. && .LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/... A warm frontal boundary will be draped along the Ohio River early Wednesday evening, extending east from a surface low over the mid Mississippi Valley. As the low tracks east Wednesday night, the boundary will begin to lift slowly north across southern portions of our fa. There remains some uncertainty with just how far the front will make it, along with the better instability, but the 00Z models appear to have trended everything a bit farther to the south. Still, expect to see showers and thunderstorms overspread the region Wednesday evening and continue into the night as the surface low moves through our area. With very favorable shear and an instability gradient along the boundary, some severe storms will be possible, with the best chances mainly along and south of the Ohio River, closer to the better instability. Damaging wind and large hail will be the main severe threat, although an isolated tornado will also be possible. Also, with the potential for training storms along the boundary and PWs in the 1.5 to 2.0 inch range, there will be a heavy rain/flood threat, especially across southern portions of our area Wednesday night. Pcpn will taper off later Wednesday night into Thursday morning as the low moves off to the east. An upper level trough will settle in across the Great Lakes and Ohio Valley heading into the weekend and into early next week. A series of embedded mid level short waves rotating through the trough will bring additional chances for showers and a few thunderstorms each the day, especially Saturday afternoon and evening. Temperatures will be seasonably cool through the weekend with highs mostly in the 60s. More seasonable temperatures will return on Monday with highs in the low to mid 70s. && .AVIATION /15Z TUESDAY THROUGH SATURDAY/... Lingering MVFR vsbys at CVG are expected to break up in the next 2 hours with low clouds scattering out underneath an overcast mid deck aoa 8kft. Line of showers west of the region will hit CVG/LUK/DAY around 17Z, ILN 18Z, and CMH/LCK 19Z. A lull in the thunderstorms is expected, then daytime heating and increasing instability with backing winds and a bump in low level moisture will promote a second round of storms, some severe this late day and early evening. Storms in this later environment will be more discrete and scattered versus coming in as a line, so VCTS seemed to be the better forecast for everyone attm. Storms exit to the south-southeast, first at DAY around 03Z, then by 05Z at the remaining TAF sites. Outside of thunderstorm activity and this morning's low clouds, ceilings should remain VFR, but will amend if this is appears to not be the case as necessary. Clouds will begin to decrease after 06Z as the weather system exits to the east. Will need to watch for stratus/fog development in the pre-dawn hours if the clouds clear early. OUTLOOK...Thunderstorms will be possible late Wednesday into Wednesday night. MVFR/IFR CIGs are possible Wednesday night into early Thursday and again on Friday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS... NEAR TERM...Franks SHORT TERM... LONG TERM...JGL AVIATION...Franks
Hazardous Weather Outlook National Weather Service Wilmington OH 519 AM EDT Tue May 7 2024 INZ050-058-059-066-OHZ026-034-035-042>046-051>056-060>065-070>072- 074-080930- Wayne-Fayette-Union-Franklin-Hardin-Mercer-Auglaize-Darke-Shelby- Logan-Delaware-Miami-Champaign-Clark-Madison-Licking-Preble- Montgomery-Greene-Pickaway-Fairfield-Butler-Warren-Clinton-Hocking- 519 AM EDT Tue May 7 2024 This Hazardous Weather Outlook is for east central Indiana, southeast Indiana, central Ohio, southwest Ohio and west central Ohio. .DAY ONE...Today and tonight. One or more rounds of storms are expected late this afternoon through the evening. Strong to severe storms are likely. The primary threats are large hail and damaging winds. A few tornadoes will also be possible. Heavy rain associated with the thunderstorm activity may also lead to localized flooding. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Additional storms, a few strong to severe, will be possible Wednesday evening into Wednesday night. Large hail and damaging winds are the primary threats. Heavy rain associated with the thunderstorm activity may also lead to localized flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed. INZ073>075-080-KYZ089>100-OHZ073-077>082-088-080930- Ripley-Dearborn-Ohio-Switzerland-Carroll-Gallatin-Boone-Kenton- Campbell-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-Ross- Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto- 519 AM EDT Tue May 7 2024 This Hazardous Weather Outlook is for southeast Indiana, northeast Kentucky, northern Kentucky, south central Ohio and southwest Ohio. .DAY ONE...Today and tonight. One or more rounds of storms are expected late this afternoon through the evening. Strong to severe storms are likely. The primary threats are large hail and damaging winds. A few tornadoes will also be possible. Heavy rain associated with the thunderstorm activity may also lead to localized flooding. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Additional storms, some strong to severe, will be possible Wednesday evening into Wednesday night. Large hail and damaging winds are the primary threats. A tornado or two will also be possible. Heavy rain associated with the thunderstorm activity may also lead to localized flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed.
Special Weather Statement
National Weather Service Wilmington OH
1249 PM EDT Tue May 7 2024
INZ074-075-080-KYZ091>093-OHZ077-078-071715-
Switzerland IN-Ohio IN-Dearborn IN-Boone KY-Kenton KY-Campbell KY-
Hamilton OH-Clermont OH-
1249 PM EDT Tue May 7 2024
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF OHIO...SOUTHEASTERN
DEARBORN...NORTHEASTERN SWITZERLAND...NORTHERN KENTON...NORTHERN
CAMPBELL...BOONE...SOUTHEASTERN HAMILTON AND NORTHWESTERN CLERMONT
COUNTIES THROUGH 115 PM EDT...
At 1249 PM EDT, a strong thunderstorm was located over Burlington,
moving northeast at 55 mph.
HAZARD...Wind gusts up to 40 mph, pea size hail, and very heavy
rain.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Hail may cause minor damage to
vegetation. Visibility will be poor and hydroplaning is
possible.
Locations impacted include...
Cincinnati, Covington, Florence, Independence, Norwood, Erlanger,
Fort Thomas, Newport, Sharonville, Blue Ash, Loveland, Reading,
Montgomery, Madeira, Edgewood, Alexandria, Elsmere, Wyoming, Cheviot,
and Fort Mitchell.
This includes the following Interstates...
I-71 in Ohio between mile markers 0 and 19.
I-74 in Ohio between mile markers 15 and 19.
I-75 in Kentucky between mile markers 176 and 191.
I-75 in Ohio between mile markers 0 and 14.
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 3929 8436 3929 8431 3905 8412 3885 8487
3903 8495
TIME...MOT...LOC 1649Z 240DEG 49KT 3903 8470
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
CampbellSpecial Weather Statement
National Weather Service Wilmington OH
102 PM EDT Tue May 7 2024
KYZ093-OHZ078-079-071730-
Campbell KY-Clermont OH-Brown OH-
102 PM EDT Tue May 7 2024
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHERN BRACKEN...
CENTRAL CAMPBELL...NORTHEASTERN PENDLETON...CLERMONT AND NORTHWESTERN
BROWN COUNTIES THROUGH 130 PM EDT...
At 101 PM EDT, a strong thunderstorm was located over New Richmond,
moving northeast at 45 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...
Amelia, Mount Orab, Bethel, New Richmond, Williamsburg, Batavia,
Felicity, Withamsville, Owensville, Goshen, Newtonsville,
Fayetteville, Mentor, Moscow, St. Martin, California, Chilo,
Chasetown, Saltair, and Nicholsville.
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 3886 8423 3887 8425 3893 8434 3926 8416
3924 8388 3914 8387 3909 8387 3878 8411
TIME...MOT...LOC 1701Z 232DEG 41KT 3894 8425
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...45 MPH
ClarkThe Cincinnati radar (KILN), 60 km away, was scanning. The volume nearest the first event began at 17:14 UTC.
14 tornado, 10 thunderstorm wind, 9 flash flood, 4 hail. Local standard time, as filed.
A large tree and wires were downed near Ridgeland Place and Montgomery Road.
The first known damage from this tornado was found on Siegrist Jutte Road, where a few trees were downed. The most significant damage occurred in two groves of trees south of State Route 219, between Wabash Road and Saint Peter Road. Sections of these trees included greater than 70 percent tree loss, with trunks snapped. A few homes along Saint Peter Road also had a significant amount of roof damage. As the tornado continued to the east, several large outbuildings at farm properties were completely demolished or heavily damaged, while damage to well-built homes was generally limited to minor roof damage. The final known damage from this tornado occurred to some outbuildings along Burkettsville Saint Hen Road, just northwest of Coldwater.
The tornado began in a field east of Harrison Road and south of Guadalupe Road. The tornado moved east-northeast and caused significant damage to trees and outbuildings. The tornado moved into Auglaize County, just south of Guadalupe Road, at 1925EST. The tornado continued to move east across Auglaize County before ending at 1933EST, about 2.8 miles north of New Bremen.
The tornado began near the intersection of Greenville-Nashville Road and New Madison-Coletown Road, where several trees were uprooted. The tornado continued northeast across State Route 502. Minor damage to homes and trees was observed on Daly Road west of Greenville. The width of the tornado increased significantly as the tornado entered Greenville. Numerous trees were snapped or uprooted within the Greenville Union Cemetery.
As the tornado continued through the north side of Greenville, the width of the circulation remained large, with expansive tree damage throughout the city. The majority of the wind damage to homes was fairly minor with shingles and siding removed at many residences. Structure damage at the high school football field was also observed. Based on the damage in Greenville, maximum wind speeds were estimated to be around 110 mph.
The tornado exited Greenville near the elementary school and continued along Kruckeburg Road where it damaged some outbuildings and homes. Additional tree and structure damage was observed along Childrens Home Bradford Road as the tornado continued northeast. The final damage was found along Auld Road, northwest of Bradford.
The tornado began at 1920EST in Mercer County, about 2.5 miles southeast of Montezuma. The tornado moved east-northeast and entered Auglaize county at 1925EST, just south of Guadalupe Road.
As the tornado moved east across western Auglaize County, it caused significant damage to trees and outbuildings. The most significant damage occurred to two houses near Southland Road and Tri Township Road, where both homes experienced roof loss and partial wall collapse, particularly of the second story. The tornado dissipated just west of State Route 66.
The tornado started in Franklin County, Indiana, at 1956EST, just to the east of Brookville Lake. The tornado moved east and entered Butler County Ohio, at 2008EST, about 5 miles south-southwest of Oxford. The tornado quickly weakened and ended just east of State-Line Road, near Springfield Road, where it caused some minor tree damage.
Approximately 100 trees were downed in Shawnee State Forest.
About 50 trees were downed in the Pond Run area of Nile Township.
The tornado started in Reily Township along Bunker Hill Woods Road where one outbuilding was destroyed and significant damage occurred to the roof and garage of a single family home. Winds in this area were estimated to be around 110 mph.
Trees were snapped and another outbuilding was destroyed along Pierson Road. Additional tree and structure damage was noted along Stillwell Beckett Road. The tornado continued to move east and downed some trees at the Indian Ridge Golf Club. Some trees were also downed along Eagle View Court and Lanes Mill Road just east of the golf course before the tornado ended.
Numerous trees were uprooted.
This brief tornado moved from south to north along the west side of Cincinnati Dayton Road in southeast Middletown. Several structures in the area sustained damage to roofing material and metal siding. Minor tree damage was also seen in this isolated area. Lastly, a few semi trailers were overturned or lofted briefly.
A few pine trees were snapped.
This tornado produced damage along and east of US Route 42, south of Lebanon, in the Hillcrest area. A few trees were damaged along the highway and a residence east of the highway had 10 to 15 snapped and uprooted trees. Minor tree damage was observed east of the residence before the tornado ended.
The tornado first formed in South Lebanon with primarily minor tree damage observed for several city blocks on the northeast side of town. Broken limbs were found along Pike Street, Claude Street, and Sunset Drive. Minor damage to an outbuilding was found on the south side of Claude Street.
The next evidence of the tornado was found in a field to the west of Shawhan Road, where striations were evident in the tall grass of the field. The tornado moved east-northeast across Shawhan Road, causing extensive tree damage on the east side of the road.
A few residences along Shawhan Road sustained minor roof damage, but one detached garage had total roof removal and partial wall collapse. Winds here were estimated to be 90 mph, or low end EF-1. The tornado continued east-northeast, causing additional tree and structural damage to homes along Browning Lane. As the tornado moved back across Shawhan Road, additional tree and minor structural damage to residences was noted between Shawhan and Stubbs Mill Road. The tornado appeared to end near Stubbs Mill Road.
The tornado began near a residence along State Route 123, about a half mile east of State Route 48. Damage mainly consisted of a few downed trees, power poles and minor roof damage. A water tank from farm equipment was tossed into a field behind the residence. Sporadic tree damage continued to the east-northeast across Wilmington Road before the tornado ended. Based on the damage, maximum winds were estimated to be 65 mph, or low end EF-0.
The tornado began in the Little Miami River Valley, within the village of Morrow where tree damage and minor structure damage was observed. Extensive tree damage occurred along the northern hillside rising up out of the valley. More sporadic tree damage was noted along the hillside rising up from the southern side of the river. Several homes along Mason Morrow Millgrove Road received structural damage. One home had a total removal of its second story while an adjacent home had partial removal of its roof. Winds at this location were estimated to be at 95 mph, or EF-1.
The tornado continued northeast along the Little Miami River, with more damage found near the intersection of Mason Morrow Millgrove Road and Woodward-Claypool Road. Widespread tree damage occurred on a large stretch of the Little Miami Bike Path. The tornado then appeared to weaken as it moved northeast, causing more minor tree damage and some minor structural damage to a residence before ending.
A large tree was downed onto two houses.
The tornado developed in a wooded lot behind a residence along U.S. Route 22-3, where numerous trees were snapped and uprooted. The residence suffered some minor roof removal and a large adjacent pole barn was completely destroyed. Winds here were estimated to be 80 mph, or EF-0. The tornado continued east along U.S. Route 22-3 for about another half mile, causing additional sporadic tree damage before ending. Debris from the destroyed pole barn was lofted and deposited downstream as far to the east-northeast as State Route 350.
This brief tornado caused mostly tree and outbuilding damage along North State Route 133 north of Blanchester. The final damage location was noted along Rhude Road, east of State Route 133.
A high water rescue was needed as a car was stranded in high water.
A foot of water was over North I-75 near mile marker 10.
A high water rescue was needed along Yoast Avenue.
The tornado developed in the vicinity of Purity Road where some outbuildings sustained considerable damage, with metal roofing and siding material getting tossed and wrapped in adjacent tree stands. Groves of soft white pine were snapped in a few locations.
The tornado continued east across Stradley Road and then to Rocky Fork and Rain Rock Roads where more groves of pine trees were snapped and thrown on both roads. Large limbs were thrown onto a house on Rocky Fork Road and metal barn roofing was lifted. Garage doors were also blown in and spatter was noted on buildings and vehicles on Rain Rock Road. A clear path of tree/vegetation loss was seen in this area. The tornado dissipated on the east side of Rain Rock Road.
Damage along the entire path was consistent with wind speeds of 70 to 75 mph.
A tree was downed along Stoney Road.
A barn and outbuilding were damaged in the 6800 block of Licking Valley Road.
Three to four inches of rain fell across much of Hamilton County in about a two hour period during the late evening hours. This caused widespread areas of high water with water flowing across several roadways. Many homes and apartment complexes were flooded across the west and north sides of Cincinnati. Several high water rescues were also needed.
Several trees were downed.
High water entered a home in the 3500 block of Handman Avenue.
High water entered an apartment complex.
An apartment was flooded along Gobel Street, north of Harrison Avenue near Westwood Commons.
A few trees were downed in Franklin Township.
A high water rescue was needed for a stranded motorist in the 5900 block of Rapid Run Road.
A high water vehicle recuse was needed in the 400 block of Sutton Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2024Every state in 2024This day in weather historyThe tornado archive for Ohio, 2024Warnings in Ohio, May 2024
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: 1179845, 1172539, 1179846, 1179531, 1179573, 1179546, 1172538, 1179891, 1179892, 1179617, 1179893, 1179824, 1179895, 1179689, 1179640, 1179896, 1179897, 1179693, 1179680, 1179898, 1179825, 1179826, 1179900, 1179899, 1179901, 1179904, 1179827, 1179902, 1179903, 1180099, 1179905, 1179907, 1179908, 1179909, 1179906, 1179910, 1180100.