Slow moving thunderstorms produced locally heavy rainfall during the early morning hours.
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.
Slow moving thunderstorms produced locally heavy rainfall during the early morning hours.
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 27, 1:00 AM EST, 0 minutes earlier.
Area Forecast Discussion National Weather Service Wilmington OH 200 AM EDT Sun May 27 2018 .SYNOPSIS... An upper level disturbance will move across the region overnight. In the wake of this system, the rest of the Memorial Day weekend will be warm and humid. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... Scattered convection continues to occur along generally an east-west band that is sagging south. This should diminish through the night. Forecast lows look reasonable at this point. && .SHORT TERM /6 AM THIS MORNING THROUGH 6 PM MONDAY/... H5 ridge begins to builds over the Ohio Valley Sunday as the s/w exits to the east. This combined with drier mid levels will act as a cap to thunderstorms development and expect Sunday to be dry. Temperatures will warm to the upper 80s. The ridge remains in place Sunday night. Skies should be clearing as the night progresses. Could see some more fog by the end of Sunday night. It will be muggy and warm with lows in the mid to upper 60s. && .LONG TERM /MONDAY NIGHT THROUGH SATURDAY/... Warm and humid conditions will be present for Monday. Monday is expected to be the warmest day of the long term. Precipitation is expected to stay confined to south of the region and therefore went with dry conditions for Monday and Monday night. Beginning later in the day on Tuesday, moisture from the remnants of Alberto will begin to work into the region. Wednesday and Thursday will bring the highest chances of precipitation to the region. As the low nears the area Wednesday afternoon into Wednesday evening wind gust could exceed 30 mph. Trended winds and wind gusts upwards with this forecast during this time. A weak disturbance will keep precipitation chances in the forecast for Friday. There are some subtle weak features near the area for Saturday, however nothing strong enough to have precipitation chances in the forecast for Saturday at this time. Temperatures are expected to be above normal for most locations through the long term period. && .AVIATION /06Z SUNDAY THROUGH THURSDAY/... Convection still continues to linger across some of the TAF sites this morning, but in general continues to weaken due to a lack of daytime heating. This morning, some high res models are indicating the possibility of MVFR restrictions in visibilities thanks to weak winds and yesterdays precipitation. Overall, cloud cover is currently sufficient to where most MVFR visibility development should be held off. During the day today drier air will continue to nudge south with PWATs falling below 1.00" in places. GFS soundings show drier air quickly moving in across all TAF sites, while the NAM shows enough moisture lingering towards KCVG/ KLUK were some thunderstorm formation would be possible. For now the chance looks to low to mention in the TAFs. OUTLOOK...Thunderstorms are possible Wednesday into Thursday. MVFR ceilings and visibilities possible Wednesday night into Thursday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS...Sites NEAR TERM... SHORT TERM...Sites LONG TERM... AVIATION...Haines
Hazardous Weather Outlook National Weather Service Wilmington OH 311 AM EDT Sat May 26 2018 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-270715- 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- 311 AM EDT Sat May 26 2018 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. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Sunday through Friday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
918 PM EDT SAT MAY 26 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0450 PM TSTM WND DMG 2 SSE LOVELAND 39.24N 84.27W
05/26/2018 CLERMONT OH BROADCAST MEDIA
TREES AND BRANCHES DOWN.
&&
KKThe Cincinnati radar (KILN), 113 km away, was scanning. The volume nearest the first event began at 06:01 UTC.
3 flash flood, 2 flood. Local standard time, as filed.
Two high water rescues occurred in Rockbridge due to rapidly rising water.
A high water rescue was needed due to a car being trapped in high water at the intersection of State Route 93 and Route 668.
U.S. 33 was closed near Rockbridge due to high water running across the roadway. Also, a mini mart was flooded.
High water was reported in parts of southern Fairfield County.
A few roads remained closed in the Rockbridge area due to lingering high water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2018Every state in 2018This day in weather historyWarnings in Ohio, May 2018
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: 747012, 747013, 747014, 747015, 747017.