A line of thunderstorms developed during the afternoon 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.
A line of thunderstorms developed during the afternoon 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 Aug 17, 1:30 PM EST, 25 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Wilmington OH 230 PM EDT Sat Aug 17 2024 .SYNOPSIS... Occasional periods of showers and thunderstorms will continue through the weekend as a low pressure system moves through the Great Lakes region. High pressure and a drier airmass will then build into the Ohio Valley through the workweek. Below normal temperatures and abundant sunshine are expected for the first half of the workweek. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... Several clusters have storms have developed near/SE of I-71 as expected, with disorganized more cellular SHRA activity pivoting into parts of WC OH. Given the favorable deep-layer and LL thermodynamic environment entrenched across far srn OH and N KY, the primary severe threat is likely to be focused in these areas through late afternoon. As we progress into early evening, the initial clusters of storms currently in the local area should progress to the S/E and out of the ILN FA, likely signaling an end to the main severe threat locally, or at the very least a substantial downtick in the overall potential as these areas will have difficulty rebounding thermodynamically through the remainder of the day (even in the prospect of additional redevelopment). Given the tremendously-favorable DCAPE environment coinciding with strong deep-layer instby and decent/sufficient deep-layer shear, the strongest storms will pose a damaging wind threat, especially if some of the cells can organize into clusters, which has occurred somewhat already. But the threat should be rather short-lived, potentially decreasing quite a bit toward/beyond 21z as the area becomes convectively-contaminated and the LL lapse rates suffer. Further to the N/NW from WC through central OH, wraparound moisture pivoting back in from the NW coinciding with better forcing and slightly cooler temps aloft will promote numerous disorganized SHRA and a few rumbles of thunder from time to time. Although the downburst potential in these areas is quite a bit lower than for locales further to the SE, some brief gusty winds will still be possible given the steep LL lapse rates. The main limiting factor for this activity is going to be updraft strength/persistence. SHRA/TSRA activity should wane as we progress past sunset, with perhaps an ISO/spotty SHRA persisting across the region through the nighttime hours. But would expect that most areas will remain dry tonight as skies generally trend cloudier through the predawn hours. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/... The lumbering mid/upper level low/trof deepens/digs into the ern Great Lakes/OH Vly region on Sunday, yielding broad/deep- layer cyclonic flow in the region and fairly impressive negative height anomalies to go along with it. This will translate to a rather unsettled pattern locally Sunday as the combination of typical diurnally-driven summertime heating and LL moisture coinciding with cooler temps aloft will generate numerous cellular/disorganized SHRA, with perhaps a rumble of thunder, during the afternoon into early evening Sunday. Daytime highs will be quite a bit cooler on Sunday, owing to extensive/expansive cloud cover and numerous afternoon SHRA pinwheeling around the low center just to the NE of the ILN FA. Temps should top out in the mid 70s to around 80 degrees, with likely to categorical PoPs from SW to NE, respectively, across the local area for the afternoon time period. Sunday will likely be one of those days where it rains on-and-off several times in any one location over the course of the daytime, but perhaps not amounting to more than a third to half of an inch in total. Drier and cooler conditions evolve Sunday night as temps dip into the lower/mid 60s as slightly drier air begins to slowly filter into the region. && .LONG TERM /MONDAY THROUGH SATURDAY/... Deep trough along the Appalachians at the start of the period will weaken and lift out mid to late week allowing mid level pattern to deamplify. Thereafter, high pressure centered over the southern Plains will be able to sprawl east northeast across the region and to the Atlantic seaboard by the end of the period. Surface high pressure will predominate through the week leading to dry conditions. Temperatures will be below normal, especially at night, through mid week. A warming trend will ensue as upper heights rise and readings will be back above normal by Friday and Saturday. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... Several clusters of TSRA are already ongoing across the region, with an expectation for additional more widespread, but loosely organized, storms expected through the first part of the TAF period. Coverage of activity should be fairly widespread, although there may be a relative "minimum" near KCVG/KLUK/KILN through the heart of the afternoon, with greater coverage focused further to the N, S, and E. As such, have only included a tempo TSRA at KDAY/KCMH/KLCK, but storms will be possible just about anywhere at any time through 00z. Sudden reductions in VSBYs and gusty winds will be possible with the activity but will be handled with amendments as needed. CIGs should be mainly VFR through this evening before trending MVFR, or even IFR, past 06z, persisting through most of the remainder of the morning Sunday. IFR CIGs will be favored for nrn sites, but will be possible just about anywhere. SW winds of 12-15kts, with gusts 20-25kts, are expected through the afternoon before going more westerly and subsiding past 00z. Winds will gradually go more out of the WNW toward the end of the period at about 10-12kts. Winds may become light enough during the overnight hours to promote the development of some BR and MVFR VSBYs, but there are some uncertainties regarding how widespread this may be, especially with some MVFR/IFR CIGs filtering in during the predawn hours as well. Diurnally-driven/enhanced SHRA, with a few rumbles of thunder, will sprout about again toward the end of the period. OUTLOOK...Thunderstorms possible on Sunday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS...KC NEAR TERM...KC SHORT TERM...KC LONG TERM... AVIATION...KC
Hazardous Weather Outlook National Weather Service Wilmington OH 413 AM EDT Sat Aug 17 2024 INZ050-OHZ026-034-035-042>044-051-181000- Wayne-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Miami- 413 AM EDT Sat Aug 17 2024 This Hazardous Weather Outlook is for east central Indiana and west central Ohio. .DAY ONE...Today and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. INZ058-059-066-073>075-080-KYZ089>100-OHZ045-046-052>056-060>065- 070>074-077>082-088-181000- Fayette-Union-Franklin-Ripley-Dearborn-Ohio-Switzerland-Carroll- Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken- Robertson-Mason-Lewis-Delaware-Champaign-Clark-Madison-Licking- Preble-Montgomery-Greene-Pickaway-Fairfield-Butler-Warren-Clinton- Ross-Hocking-Hamilton-Clermont-Brown-Highland-Adams-Pike-Scioto- 413 AM EDT Sat Aug 17 2024 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. Occasional showers and thunderstorms are expected today. A few strong to severe storms will be possible this afternoon into early evening. Damaging winds and large hail are the primary threats. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Wilmington OH
151 PM EDT Sat Aug 17 2024
OHZ056-171815-
Licking OH-
151 PM EDT Sat Aug 17 2024
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN LICKING
COUNTY THROUGH 215 PM EDT...
At 150 PM EDT, a strong thunderstorm was located over Heath, moving
east at 35 mph.
HAZARD...Wind gusts up to 45 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
vegetation.
Locations impacted include...
Newark, Heath, Granville, Hanover, Marne, Granville South, Toboso,
and Fallsburg.
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 4000 8220 3996 8246 4008 8252 4024 8220
4024 8219
TIME...MOT...LOC 1750Z 248DEG 29KT 4004 8243
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...45 MPH
ClarkSpecial Weather Statement
National Weather Service Wilmington OH
156 PM EDT Sat Aug 17 2024
OHZ063-072-080-171830-
Highland OH-Fayette OH-Clinton OH-
156 PM EDT Sat Aug 17 2024
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN
FAYETTE...EASTERN CLINTON AND NORTHWESTERN HIGHLAND COUNTIES THROUGH
230 PM EDT...
At 155 PM EDT, a strong thunderstorm was located near Lynchburg,
moving northeast at 35 mph.
HAZARD...Wind gusts up to 45 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
vegetation.
Locations impacted include...
Wilmington, Sabina, Lynchburg, Leesburg, New Vienna, Russell,
Martinsville, Highland, Melvin, East Monroe, Samantha, New Antioch,
Lees Creek, Reesville, and Morrisville.
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 3920 8377 3928 8387 3951 8375 3950 8356
3934 8342
TIME...MOT...LOC 1755Z 233DEG 29KT 3927 8383
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...45 MPH
ClarkSpecial Weather Statement
National Weather Service Wilmington OH
208 PM EDT Sat Aug 17 2024
KYZ097-099-OHZ073-078>082-171845-
Mason KY-Bracken KY-Pike OH-Clermont OH-Highland OH-Adams OH-
Brown OH-Ross OH-
208 PM EDT Sat Aug 17 2024
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF MASON...BRACKEN...
SOUTHEASTERN CLERMONT...BROWN...WESTERN ADAMS...NORTHWESTERN PIKE...
SOUTHERN HIGHLAND AND SOUTHWESTERN ROSS COUNTIES THROUGH 245 PM
EDT...
At 207 PM EDT, strong thunderstorms were located along a line
extending from 7 miles northeast of Sardinia to near Falmouth, moving
east at 30 mph.
HAZARD...Wind gusts up to 45 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
vegetation.
Locations impacted include...
Maysville, Hillsboro, Georgetown, Washington, West Union, Manchester,
Peebles, Ripley, Aberdeen, Augusta, Winchester, Marshall, Sardinia,
Seaman, Bainbridge, Lewisburg, Brooksville, Belfast, Highland
Holiday, and Kincaid Springs.
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 3850 8379 3858 8397 3859 8397 3859 8399
3869 8422 3870 8422 3921 8364 3925 8310
TIME...MOT...LOC 1807Z 253DEG 27KT 3909 8372 3862 8433
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...45 MPH
ClarkSpecial Weather Statement
National Weather Service Wilmington OH
235 PM EDT Sat Aug 17 2024
KYZ099-100-OHZ073-079-081-082-088-171915-
Mason KY-Lewis KY-Pike OH-Scioto OH-Adams OH-Brown OH-Ross OH-
235 PM EDT Sat Aug 17 2024
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF MASON...WESTERN
LEWIS...SOUTHEASTERN BROWN...ADAMS...PIKE...NORTHWESTERN SCIOTO AND
SOUTHEASTERN ROSS COUNTIES THROUGH 315 PM EDT...
At 234 PM EDT, strong thunderstorms were located along a line
extending from 6 miles northeast of Bainbridge to near Brooksville,
moving east at 25 mph.
HAZARD...Wind gusts up to 45 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
vegetation.
Locations impacted include...
Maysville, Waverly, Washington, West Union, Piketon, Manchester,
Peebles, Ripley, Aberdeen, Vanceburg, Seaman, Lewisburg, Rome,
Lucasville, Pike Lake, Kincaid Springs, Tollesboro, Blue Creek,
Londonderry, and Decatur.
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 3843 8358 3848 8359 3852 8363 3849 8375
3862 8398 3905 8344 3906 8339 3910 8337
3929 8313 3927 8276 3899 8280 3840 8350
TIME...MOT...LOC 1834Z 271DEG 15KT 3927 8316 3861 8401
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...45 MPH
ClarkSpecial Weather Statement
National Weather Service Wilmington OH
248 PM EDT Sat Aug 17 2024
KYZ098>100-171930-
Robertson KY-Mason KY-Lewis KY-
248 PM EDT Sat Aug 17 2024
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHERN MASON...
ROBERTSON AND WEST CENTRAL LEWIS COUNTIES THROUGH 330 PM EDT...
At 248 PM EDT, a strong thunderstorm was located 8 miles west of
Fairview, moving east at 30 mph.
HAZARD...Wind gusts up to 45 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
vegetation.
Locations impacted include...
Lewisburg, Tollesboro, Mount Olivet, Sardis, US Route 62 at State
Route 875, Blue Licks Battlefield, Murphysville, Burika, Mount
Gilead, Alhambra, Mays Lick, Mitchells Mill, Rectorville, Epworth,
Peed, Fleming-Mason Airport, Orangeburg, Helena, Kentontown, and
Piqua.
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 3843 8400 3846 8410 3848 8413 3849 8417
3855 8416 3855 8414 3856 8412 3861 8357
3842 8356 3843 8358 3846 8358 3850 8360
3851 8363 3852 8363 3852 8364 3846 8386
3849 8393 3845 8398 3842 8400
TIME...MOT...LOC 1848Z 268DEG 28KT 3848 8407
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...45 MPH
ClarkPreliminary Local Storm Report
National Weather Service Wilmington OH
253 PM EDT Sat Aug 17 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0246 PM Hail 1 N West Union 38.81N 83.54W
08/17/2024 M1.00 Inch Adams OH Amateur Radio
&&The Cincinnati radar (KILN), 87 km away, was scanning. The volume nearest the first event began at 18:55 UTC.
1 thunderstorm wind. Local standard time, as filed.
Several large branches were downed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2024Every state in 2024This day in weather historyWarnings in Kentucky, August 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: 1193948.