A persistent complex of showers and thunderstorms moved slowly over southwestern Ohio during the morning hours. Some redevelopment of storms behind this complex produced heavy rainfall over the same locations.
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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.
A persistent complex of showers and thunderstorms moved slowly over southwestern Ohio during the morning hours. Some redevelopment of storms behind this complex produced heavy rainfall over the same locations. As a result, flooding and flash flooding occurred.
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 Jul 8, 3:18 AM EST, 1 hour 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 418 AM EDT MON JUL 8 2013 .SYNOPSIS... A SERIES OF UPPER LEVEL DISTURBANCES WILL RESULT IN A CONTINUED CHANCE OF THUNDERSTORMS THROUGH MID WEEK. A COLD FRONT WILL PUSH THROUGH THE AREA ON THURSDAY...BRINGING DRIER CONDITIONS FOR THE END OF THE WEEK. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... SHORT WAVE ENERGY ROTATING DOWN THE BACK THE SIDE OF THE UPPER LEVEL LOW IS HELPING TO MAINTAIN A SCATTERED TO BROKEN AREA OF THUNDERSTORMS FROM NORTHEAST INDIANA OVER INTO CENTRAL OHIO. THERE IS AN AXIS OF HIGHER MUCAPES OF AROUND 1000 J/KG CURRENTLY RUNNING FROM NORTHEAST INDIANA DOWN INTO SOUTH CENTRAL OHIO SO IT IS CONCEIVABLE THAT SOME OF THIS ACTIVITY MAY CONTINUE TO PUSH SLOWLY SOUTHEAST ACROSS MUCH OF OUR AREA THROUGH THE MORNING HOURS. WE SHOULD THEN GET INTO MORE OF A LULL IN THE PCPN LATE THIS MORNING INTO EARLY AFTERNOON AS WE TRANSITION INTO MORE OF A WEST TO NORTHWEST UPPER LEVEL FLOW PATTERN. THIS WILL ALLOW FOR A FAST MOVING SHORT WAVE CURRENTLY OVER THE UPPER MISSISSIPPI VALLEY TO APPROACH FROM THE WEST THROUGH LATE AFTERNOON. INSTABILITY SHOULD BE ABLE TO RECOVER THROUGH THIS AFTERNOON AS TEMPERATURES PUSH INTO THE MID 80S. THIS WILL ALLOW FOR ANOTHER CHANCE OF THUNDERSTORMS TO SPREAD IN FROM THE NORTHWEST THROUGH LATE AFTERNOON. && .SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY/... THE PROGRESSIVE WEST TO NORTHWEST FLOW PATTERN ALOFT WILL THEN CONTINUE TUESDAY INTO WEDNESDAY WITH SEVERAL WEAKER SHORT WAVES MOVING EAST THROUGH THE REGION. HIGHS TUESDAY AND WEDNESDAY WILL GENERALLY BE IN THE MID 80S WHICH WILL ALLOW FOR DECENT DESTABILIZATION BOTH DAYS. TIMING IS SOMEWHAT DIFFICULT IN THE FASTER FLOW SO WILL MAINTAIN PRIMARILY CHANCE POPS THROUGH THE MAJORITY OF THE PERIOD. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... THE REGION WILL REMAIN IN A FAIRLY ACTIVE PATTERN AS THE BLOCKING BERMUDA HIGH BECOMES LESS AMPLIFIED AND THE REGION IS UNDER A MORE ZONAL FLOW PATTERN TO THE NORTH OF THIS HIGH AND ANOTHER STRONG H5 HIGH OVER THE SW CONUS. AN AMPLIFIED TROUGH DIGS INTO THE LWR GREAT LAKES AND OHIO/TN VALLEY AREAS WITH THE ASSOCIATED SFC FRONT SLOW TO PROGRESS THROUGH THE REGION THROUGH 18Z THU. SOME TIMING DIFFERENCES BETWEEN THE GFS/ECMWF WITH THE ECMWF SOLUTION SLIGHTLY LESS AMPLIFIED/MORE PROGRESSIVE THAN THE GFS SOLUTIONS. HAVE GONE CLOSER TO THE ECMWF SOLUTION...WHICH HAS BEEN MORE CONSISTENT WITH THE PATTERN. MOSTLY BELOW NORMAL TEMPERATURES...FIRST UNDER CLOUDS WITH THE TROUGH DIGGING THROUGH LATE WED INTO THUR...AND THEN NORTHERLY FLOW FOR FRI/SAT WILL BRING COOLER THAN NORMAL TEMPERATURES. AFTER A WET WED/THU...AREA DRIES OUT ON FRI/SAT WITH AN UPR LOW SETTING UP AGAIN...THOUGH THIS TIME OVER THE GULF COAST STATES AND SETTING UP ANOTHER PERIOD OF GULF MOISTURE...THOUGH THIS TIME FURTHER EAST THAN FCST AREA FOR NEXT WEEKEND. GENERALLY DRY FORECAST FOR SAT/SUN...WITH PRECIPITATION EXPECTED TO BE FURTHER EAST OVER THE APPALACHIANS AT THIS TIME. && .AVIATION /08Z MONDAY THROUGH FRIDAY/... SHOWERS AND THUNDERSTORMS WILL GRADUALLY APPROACH KCMH/KLCK DURING THE PRE-DAWN HOURS. SOME LIGHT SHOWERS MAY ALSO REACH KDAY DURING THIS SAME TIME PERIOD. ACROSS KCVG/KLUK...MOSTLY CLEAR SKIES ARE RESULTING IN THE DEVELOPMENT OF FOG/MIST. VSBYS ARE LIKELY TO REDUCE TO MVFR AT KCVG AND IFR AT KLUK BEFORE SUNRISE. AFTER SUNRISE...VFR CONDITIONS ARE EXPECTED ALONG WITH A BREAK IN SHOWER AND THUNDERSTORM ACTIVITY THROUGH THE EARLY AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS WILL REDEVELOP DURING THE LATE AFTERNOON AND MAY LINGER INTO THE LATE EVENING. OUTLOOK...THUNDERSTORMS POSSIBLE MONDAY NIGHT INTO TUESDAY. GOOD CHANCE OF THUNDERSTORMS WEDNESDAY AND WEDNESDAY NIGHT. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...NONE. KY...NONE. IN...NONE. && SYNOPSIS...JGL NEAR TERM...JGL SHORT TERM...JGL LONG TERM...JDR AVIATION...LATTO
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 426 AM EDT MON JUL 8 2013 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-090830- 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- 426 AM EDT MON JUL 8 2013 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. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER LOW AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. SHOWERS AND SOME THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY RAINFALL ON WEDNESDAY NIGHT AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
127 AM EDT MON JUL 8 2013
OHZ046-080630-
DELAWARE OH-
127 AM EDT MON JUL 8 2013
...A STRONG THUNDERSTORM WILL AFFECT DELAWARE COUNTY FROM 145 AM
THROUGH 230 AM EDT...
AT 125 AM EDT...RADAR INDICATED A STRONG THUNDERSTORM 14 MILES NORTH
OF DELAWARE STATE PARK...MOVING SOUTHEAST AT 25 MPH.
STORM HAZARDS INCLUDE...
WINDS TO 45 MPH...
ONE HALF INCH DIAMETER HAIL...
SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...ASHLEY...DELAWARE AND
SUNBURY.
ALSO...RADNOR...DELAWARE STATE PARK...WARRENSBURG...LEONARDSBURG...
BELLEPOINT...KILBOURNE...STRATFORD...OLIVE GREEN...ALUM CREEK STATE
PARK AND LEWIS CENTER ARE NEAR THE PATH OF THIS STRONG THUNDERSTORM.
LAT...LON 4044 8302 4042 8301 4042 8293 4041 8292
4036 8292 4035 8275 4020 8276 4018 8313
4042 8325 4045 8325
ASLThe Cincinnati radar (KILN), 80 km away, was scanning. The volume nearest the first event began at 09:58 UTC.
3 heavy rain, 3 flash flood, 2 flood. Local standard time, as filed.
High water was reported on Route 36 due to heavy rainfall.
High water was ponding on Broadway Road in Enon due to heavy rainfall.
High water was reported on roadways in Ra-mar estates due to heavy rainfall.
Yards were flooded by at least a foot of water due to heavy rainfall.
Multiple roads were closed due to high water caused by heavy rainfall including Highway 589 and Route 36.
Maintained roads were closed by high water due to heavy rainfall.
High water ponded in the parking lot of Youngs Dairy due to heavy rainfall.
Lingering high water due to heavy rainfall was reported at the entrance to the Bent Tree Golf Club.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2013Every state in 2013This day in weather historyWarnings in Ohio, July 2013
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: 464754, 464767, 472819, 464757, 464765, 465436, 464769, 464770.