An isolated thunderstorm developed over Clinton County during the evening.
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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.
An isolated thunderstorm developed over Clinton County during the evening.
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 30, 4:23 PM EST, 1 hour 7 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 523 PM EDT WED MAY 30 2007 .SYNOPSIS... SOUTHERLY FLOW AROUND HIGH PRESSURE TO THE EAST WILL OFFER UNSEASONABLY WARM AND HUMID CONDITIONS. ON THURSDAY...AN UPPER DISTURBANCE WILL BRING A THREAT OF THUNDERSTORMS TO INDIANA AND PARTS OF OHIO AND KENTUCKY. EXPECT SCATTERED THUNDERSTORMS THURSDAY NIGHT AND FRIDAY AS ANOTHER UPPER DISTURBANCE MOVES NORTHEAST ACROSS THE REGION. && .NEAR TERM /THROUGH TONIGHT/... STRONG UPPER LEVEL RIDGE ORIENTED FROM THE EASTERN GREAT LAKES THROUGH THE SOUTHEAST. NAM INDICATING WEAK LOW LEVEL CONVERGENCE AXIS TO PIVOT NNE THRU WESTERN PERIPHERY OF FA. ISOLATED SHOWERS AND THUNDERSTORMS HAD DEVELOPED ACROSS CENTRAL AND WESTERN OHIO WITH THE STRONGEST CONVECTION TO THE NORTH OF ILNS FORECAST AREA. WEAK INSTBY COMBINED WITH LOW LEVEL FORCING WAS THE CAUSE OF THIS ISOLD CONVECTION AND THE SHOWERS/STORMS SHOULD BE SHORT LIVED. WILL KEEP MENTION OF SLIGHT CHANCE THUNDERSORMS ENTIRE FORECAST AREA FOR THE EVENING HOURS...OTHERWISE FORECAST WILL BE DRY. LOWS TONIGHT FORECAST TO BE WARMER THAN MAV GUIDANCE. && .SHORT TERM /TOMORROW THROUGH FRIDAY NIGHT/... TOMORROW...THE NAM AND GFS CONTINUE TO SHOW AN UPPER LEVEL DISTURBANCE MAKING ITS WAY OVER THE H5 RIDGE THU. EXPECT TO SEE AN INCREASE IN MOISTURE THURSDAY AND THIS COUPLED WITH THE UPPER LEVEL DISTURBANCE SHOULD BE ENOUGH TO PRODUCE SOME PRECIPITATION. CHANCE POPS IN THE NW AND SLIGHT CHANCE OVER ALL BUT SE FORECAST FOR THU DECREASING THU NIGHT. UPPER LOW STALLED OVER THE NORTHERN PLAINS WILL GUIDE WEAK UPPER LEVEL DISTURBANCES THROUGH THE FORECAST AREA THROUGH FRIDAY NIGHT. THIS WILL KEEP CHANCE OF THUNDERSTORMS IN FORECAST FRIDAY AND FRIDAY NIGHT. FORECAST TEMPERATURES ARE A BIT WARMER THAN THE MAV WITH LOW TEMPERATURES MOSTLY IN THE 60S AND HIGHS IN THE MID TO UPPER 80S. && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... MIDLEVEL LOW WILL BE CUT OFF OVER THE UPPER MIDWEST AT THE BEGINNING OF THE EXTENDED PERIOD. SEVERAL IMPULSES OF ENERGY AHEAD OF THIS SYSTEM SHOULD RESULT IN AT LEAST SCATTERED SHOWER AND THUNDERSTORM ACTIVITY ON SATURDAY AND SUNDAY...WITH THE BEST CHANCE ACROSS OUR WEST ON SATURDAY AND ACROSS THE EAST ON SUNDAY. LONG TERM MODEL ENSEMBLE IS IN GOOD AGREEMENT IN GRADUALLY FILLING UPPER LOW INTO AN OPEN WAVE OVER THE GREAT LAKES...AND BRINGING IT SLOWLY EASTWARD THROUGH THE EXTENDED. THIS CAUSES A WEAK FRONT TO ENTER THE CWA ON TUESDAY AND GRADUALLY WASH OUT. DIFFERENCES APPEAR TOWARD THE BEGINNING AND MIDDLE OF NEXT WEEK...WITH THE ECMWF BECOMING LESS AMPLIFIED WITH THE LONGWAVE OVER THE EASTERN US THAN THE GFS. LEANING TOWARD HPC THINKING THAT ECMWF HAS BETTER HANDLE ON TELECONNECTION PATTERN TOWARD THE END OF THE EXTENDED. THUS WENT WARMER THAN MEX GUIDANCE FOR DAYS 6 AND 7. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... STRONG UPPER LEVEL RIDGE ORIENTED FROM THE EASTERN GREAT LAKES THROUGH THE SOUTHEAST. SCTD CONVECTION HAS DEVELOPED IN AREA OF WEAK LO LVL CONVERGENCE AND MARGINAL INSTABILITY. THERE MAY BE SOME SOUTHWARD DEVELOPMENT BUT EXPECT THIS CONVECTION TO AVOID ALL TAF SITES. DIURNAL CU WL DISSIPATE WITH LOSS OF DAYTIME HEATING. IN SAME AIRMASS AS LAST NIGHT WITH MIST/HAZE REDEVELOPING AGAIN OVERNIGHT. SOME THICKER MID/HIGH CLOUDS MAY SPREAD IN FROM THE SOUTHWEST EARLY THU AHD OF S/W TRACKING NE INTO THE LOWER OH VALLEY. HAVE HELD OFF ANY MENTION OF PRECIP THRU 18Z. OUTLOOK...TSTMS POSSIBLE SATURDAY INTO SUNDAY. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...NONE. KY...NONE. IN...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 500 AM EDT WED MAY 30 2007 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-310900- 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- 500 AM EDT WED MAY 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The Cincinnati radar (KILN), 8 km away, was scanning. The volume nearest the first event began at 22:30 UTC.
1 thunderstorm wind. Local standard time, as filed.
A metal shed was severely damaged near the intersection of State Route 134 and Dover Road. The Wilmington High School auditorium sustained roof damage. The tops of three trees were snapped off in town.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2007Every state in 2007This day in weather historyWarnings in Ohio, May 2007
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: 25723.