Thunderstorms developed in an unstable air mass ahead of a cold front during the afternoon. These storms began to organize across southeastern Indiana before moving into southwestern Ohio.
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.
Thunderstorms developed in an unstable air mass ahead of a cold front during the afternoon. These storms began to organize across southeastern Indiana before moving into southwestern Ohio. The main threat from these storms while in Indiana was damaging winds.
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 23, 12:40 PM EST, 21 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 140 PM EDT TUE JUL 23 2013 .SYNOPSIS... A COLD FRONT WILL BRING SHOWERS AND THUNDERSTORMS TO THE REGION TODAY. HIGH PRESSURE IN THE UPPER MIDWEST WEDNESDAY WILL DROP INTO THE NORTHERN OHIO VALLEY WEDNESDAY NIGHT AND THURSDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... A COLD FRONT WILL PUSH INTO THE REGION FROM THE NORTHWEST THIS AFTERNOON. LATEST MODELS BRING THE BEST INSTABILITY AND LOW LEVEL CONVERGENCE TO LOCATIONS A LITTLE FARTHER EAST AND SOUTH OF PREVIOUS FORECAST. THUS...HAVE SHIFTED POPS SOME WITH LOW CHANCE NOW EXPECTED ACRS THE NORTHWEST...RAMPING UP TO LIKELY POPS MAINLY EAST/SOUTHEAST OF I-71 BY EVENING. THE COLD FRONT WILL BE ACCOMPANIED BY AN EMBEDDED S/WV. MLCAPES ARE NOW FORECAST TO RANGE BETWEEN 2000 AND 3500 J/KG...SO THERE WILL BE ENOUGH FUEL FOR THUNDERSTORMS TO DEVELOP. THIS INSTABILITY ALONG WITH LOW TO SLIGHTLY LOW END 0-6 KM BULK SHEAR SHOULD ADD TO SOME ORGANIZATION WITH MULTICELL STORM CLUSTERS AND PERHAPS SOME LINEAR BOWING SEGMENTS. DAMAGING WINDS WILL BE THE PRIMARY SEVERE WEATHER THREAT ALONG WITH THE POTENTIAL FOR A FEW LARGE HAIL STONES. LOCALLY HEAVY RAIN WILL ALSO OCCUR WITH SOME OF THE STRONGER STORMS. SEVERE POTENTIAL CONTINUES TO BE HIGHLIGHT IN THE HWO. IT APPEARS TEMPERATURES WILL BE MUCH WARMER ACROSS THE NORTHWEST THIS AFTERNOON. OVERALL...HIGHS SHOULD BE IN THE UPPER 80S. DEWPOINTS ARE MUCH HIGHER THAN FORECAST...AND THESE VALUES COMBINED WITH HIGHS IN THE UPPER 80S...WILL PUSH HEAT INDICES INTO THE MID AND UPPER 90S. HAVE HIGHLIGHTED THIS IN THE HWO. && .SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY/... SHOWERS/STORMS WILL BE EXITING THE FORECAST AREA THIS EVENING AND SHOULD BE NEAR THE I-71 CORRIDOR TO START THIS PERIOD. A QUICK CLEARING BEHIND IT WILL LET COOLER AND SUBSTANTIALLY DRIER AIR ENTER THE OHIO VALLEY. A PERIOD OF NO RAIN IS IN THE OFFING AS HIGH PRESSURE BUILDS INTO THE NORTHERN OHIO VALLEY FROM THE UPPER MIDWEST. MUCH COOLER READINGS IN THE 70S AND LOWER 80S WILL BE A WELCOME CHANGE ALONG WITH THE DRIER AIR. IN ADDITION TO THE COOLER HIGHS...NIGHTTIME LOWS WILL DROP TO THE 50S TO AROUND 60 FOR MUCH OF THE REGION FOR THE NEXT SEVERAL NIGHTS. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... ACTIVE WEATHER PATTERN TO DRY OUT AT MID WEEK. MAIN WEATHER FEATURES ARE A MID LEVEL RIDGE OVER THE WESTERN U.S. AND A MEAN TROF OVER THE EAST. FRONTAL BOUNDARY DROPPING SE WILL PROVIDE A LINGERING CHANCE FOR PRECIPITATION OVER THE FAR SE EARLY WEDNESDAY. TEMPERATURES ARE EXPECTED TO BE BELOW NORMAL WITH HIGHS RANGING FROM THE MID 70S NORTHWEST TO NEAR 80 SE. NORTHWEST FLOW PATTERN DEVELOPS WITH SFC HIGH PRESSURE BUILDING SE ACRS THE REGION THRU THE END OF THE WEEK. THIS HIGH WILL PROVIDE DRIER WEATHER THRU THE REMAINDER OF THE WEEK. BELOW NORMAL TEMPERATURES TO CONTINUE WITH HIGHS ON THURSDAY RANGING FROM THE UPPER 70S NW TO THE LOWER 80S SE. TEMPS WILL MODERATE A LTL ON FRIDAY BUT STILL REMAIN BELOW NORMAL WITH HIGHS FROM THE LOWER 80S NW TO THE MID 80S SE. ENERGY DIGGING SE IN THE NORTHWEST FLOW WILL DEEPEN THE EASTERN U.S. TROF. NUMERICAL MODEL SOLNS DIFFERENCES EXIST REGARDING TIMING... PHASING AND DEPTH. ECMWF SOLN IS THE MOST AMPLIFIED WITH THIS FEATURE ALTHOUGH DIFFERENCES EXIST MOST MODEL SOLNS ARE SIMILAR KEEPING MSTR ASSOCIATED WITH REMNANTS OF CLOSED LOW TO OUR SOUTH. LATEST OPERATIONAL GFS TAKES THE ASSOCIATED SFC WAVE THRU OHIO WILL COPIOUS AMOUNTS OF PRECIPITATION NEXT WEEKEND. THIS WILL HAVE TO CONTINUE TO BE MONITORED. EXPECT SFC COLD FRONT TO DROP SE THRU THE REGION SAT/SAT NIGHT. WILL INDICATE CHANCE POPS WITH THIS FEATURE AND ALLOW FOR LINGERING MENTION ON SUNDAY WITH THE BEST PROBABILITY ACRS THE SE. BELOW NORMAL READINGS TO CONTINUE WITH HIGHS ON SATURDAY...UPPER 70S NW TO THE LOWER 80S SE. NORTHWESTERLY FLOW ALOFT WITH SFC HIGH PRESSURE TO DRY US OUT LATER SUNDAY INTO MONDAY. IN THE WAKE OF THIS COLD FRONT TEMPERATURES TO RUN 5 TO 10 DEGREES BELOW NORMAL...WITH HIGHS SUNDAY FROM THE MID 70S NW TO NEAR 80 SE AND GENERALLY IN THE UPPER 70S TO NEAR 80 MONDAY. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... LATEST OBJECTIVE ANALYSIS SUGGESTS THAT THE MAIN CONVECTIVE ACTIVITY TO AFFECT THE TAF SITES THIS AFTERNOON INTO THIS EVENING WILL BE ALONG AND AHEAD OF A DEVELOPING PRE FRONTAL TROUGH JUST TO OUR NW. IN A MODERATE TO STRONG UNSTABLE AIRMASS...ALONG WITH JUST ENOUGH AMPLE SHEAR...CLUSTERS OF STORMS...SOME IN LINEAR SEGMENTS SHOULD PROGRESS FROM NW TO SE ACRS THE TAF SITES BETWEEN 20Z AND 24Z. IT IS TOO EARLY TO PINPOINT WIND GUST AND HAIL POTENTIAL AT ANY GIVEN SITE...BUT STRONG WINDS AND HAIL ARE CERTAINLY PLAUSIBLE. WILL AMEND ACCORDINGLY IF NEEDED. OTHERWISE...HAVE PLACED A TEMPO GROUP WITH IFR VSBYS/MVFR CIGS WHEN THE BEST THREAT IS EXPECTED AT EACH TAF SITES. THE PRE FRONTAL TROUGH WILL BE FOLLOWED BY A COLD FRONT LATER THIS EVENING WHICH WILL SHOW A MARKED WIND SHIFT TO THE NORTH. THIS WILL USER IN DRIER AIR AT THE SURFACE AS THE FRONT PUSHES SOUTH OF THE OHIO RIVER OVERNIGHT. MODELS CONTINUE TO SHOW SOME LOW LEVEL MOISTURE IN THE WAKE OF THE FRONT. THIS MOISTURE IN A LOW LEVEL CAA REGIME WILL LIKELY PRODUCE SOME POST FRONTAL STRATOCUMULUS WHICH MAY END UP IN THE MVFR CATEGORY. HAVE SHOWED THIS IN THE TAFS. ON WEDNESDAY...HIGH PRESSURE WILL BUILD INTO THE GREAT LAKES AND OHIO VALLEY REGION. DIURNAL HEATING SHOULD ALLOW THE MVFR STRATOCUMULUS DECK LIFT TO A LOW VFR CUMULUS DECK BY 18Z. WINDS WILL SHIFT TO THE NORTHEAST BY THEN AS WELL. OUTLOOK...THUNDERSTORMS POSSIBLE SATURDAY. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...NONE. KY...NONE. IN...NONE. && SYNOPSIS...FRANKS NEAR TERM...HICKMAN SHORT TERM...FRANKS/HICKMAN LONG TERM...AR AVIATION...HICKMAN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 1152 AM EDT TUE JUL 23 2013 INZ058-059-066-073>075-080-KYZ089>100-OHZ046-053>056-060>065-070>074- 077>082-088-240900- FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-SWITZERLAND- CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-PENDLETON-BRACKEN- ROBERTSON-MASON-LEWIS-DELAWARE-CLARK-MADISON-FRANKLIN OH-LICKING- PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY-FAIRFIELD-BUTLER-WARREN- CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN-HIGHLAND-ADAMS-PIKE- SCIOTO- 1152 AM EDT TUE JUL 23 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 AND SOUTHWEST OHIO. .DAY ONE...THIS AFTERNOON AND TONIGHT. TEMPERATURES WILL RISE INTO THE UPPER 80S THIS AFTERNOON AHEAD OF A COLD FRONT. THESE TEMPERATURES COMBINED WITH DEWPOINTS IN THE LOWER TO MID 70S WILL PRODUCE HEAT INDICES IN THE MID TO UPPER 90S. THE COLD FRONT WILL CROSS SOUTHEAST THROUGH THE OHIO VALLEY THIS AFTERNOON INTO THIS EVENING. SHOWERS AND THUNDERSTORMS WILL FIRE ALONG THE FRONT AS IT CROSSES THE REGION...AND SOME OF THESE STORMS COULD REACH SEVERE LIMITS. DAMAGING WINDS AND LARGE HAIL ARE EXPECTED TO BE THE PRIMARY SEVERE WEATHER THREATS. SOME LOCALLY HEAVY RAIN WILL ALSO BE POSSIBLE WITH THE STRONGER STORMS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER THIS AFTERNOON INTO THIS EVENING. INZ050-OHZ026-034-035-042>045-051-052-240900- WAYNE-HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-MIAMI- CHAMPAIGN- 1152 AM EDT TUE JUL 23 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...CENTRAL OHIO...MIAMI VALLEY OF OHIO AND WEST CENTRAL OHIO. .DAY ONE...THIS AFTERNOON AND TONIGHT. A COLD FRONT WILL CROSS SOUTHEAST THROUGH THE AREA THIS AFTERNOON INTO THIS EVENING. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO ACCOMPANY THIS FRONT...WITH ACTIVITY COMING TO AN END BY EARLY EVENING. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED...AN ISOLATED SEVERE STORM CAN NOT BE RULED OUT. DAMAGING WINDS AND LARGE HAIL WOULD BE THE PRIMARY SEVERE WEATHER THREATS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
141 PM EDT TUE JUL 23 2013
OHZ056-065-231815-
FAIRFIELD OH-LICKING OH-
141 PM EDT TUE JUL 23 2013
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN LICKING AND
NORTHEASTERN FAIRFIELD COUNTIES THROUGH 215 PM EDT...
AT 136 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR STATE
ROUTE 158 AT STATE ROUTE 204...MOVING EAST AT 35 MPH.
STORM HAZARDS INCLUDE...
WINDS TO 40 MPH...
ONE HALF INCH DIAMETER HAIL...
SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BUCKEYE LAKE.
ALSO...MILLERSPORT...HEBRON...FAIRFIELD BEACH...HARBOR HILLS...
BROWNSVILLE...TOBOSO AND GRATIOT ARE NEAR THE PATH OF THIS STRONG
THUNDERSTORM.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES
STRONGER...THEN A WARNING MAY BE NEEDED.
LAT...LON 3992 8223 3991 8234 3993 8246 3986 8246
3984 8244 3984 8240 3983 8239 3983 8245
3986 8246 3984 8247 3986 8268 3998 8268
4005 8221SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
156 PM EDT TUE JUL 23 2013
INZ050-OHZ060-231830-
WAYNE IN-PREBLE OH-
156 PM EDT TUE JUL 23 2013
...A STRONG THUNDERSTORM WILL AFFECT NORTHERN PREBLE AND SOUTHEASTERN
WAYNE COUNTIES THROUGH 230 PM EDT...
AT 153 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR
RICHMOND...MOVING EAST AT 25 MPH.
STORM HAZARDS INCLUDE...
WINDS TO 40 MPH...
ONE HALF INCH DIAMETER HAIL...
SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...NEW PARIS...EATON AND
LEWISBURG.
ALSO...WEST FLORENCE...NEW HOPE...ELDORADO...OKLAHOMA...WEST
MANCHESTER AND WEST ALEXANDRIA ARE NEAR THE PATH OF THIS STRONG
THUNDERSTORM.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES
STRONGER...THEN A WARNING MAY BE NEEDED.
LAT...LON 3990 8492 3992 8468 3992 8449 3989 8448
3969 8448 3974 8494The Cincinnati radar (KILN), 102 km away, was scanning. The volume nearest the first event began at 18:02 UTC.
2 thunderstorm wind. Local standard time, as filed.
Large limbs and power lines were downed in south Richmond due to thunderstorm winds.
Trees were reported down on a road in Napoleon due to thunderstorm winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2013Every state in 2013This day in weather historyWarnings in Indiana, 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: 465567, 465569.