Scattered thunderstorms developed ahead of a cold front during the late afternoon and evening.
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.
Scattered thunderstorms developed ahead of a cold front during the late afternoon and 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 Aug 29, 3:13 PM EST, 2 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 413 PM EDT FRI AUG 29 2008 .SYNOPSIS... SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS EVENING AS A COLD FRONT MOVES THROUGH THE AREA. HIGH PRESSURE WILL THEN BUILD INTO THE REGION FOR THE HOLIDAY WEEKEND. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... COLD FRONT CURRENTLY PUSHING INTO NORTHWEST PORTIONS OF OUR FA. AHEAD OF THIS...ISOLATED TO SCATTERED THUNDERSTORMS HAVE DEVELOPED ACROSS MAINLY THE WESTERN PORTIONS OF OUR FA THIS AFTERNOON. AS WE LOSE DAYTIME HEATING AND FRONT MOVES THROUGH OUR AREA THIS EVENING...WILL ALLOW FOR A 30 POP TO SLOWLY TAPER OFF FROM THE NORTHWEST. SKIES SHOULD THEN BECOME MOSTLY CLEAR OVERNIGHT. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY NIGHT/... MID LEVEL RIDGE IS FORECAST TO BUILD EAST ACROSS THE AREA THROUGH SUNDAY. A LITTLE BIT OF LINGERING MOISTURE ACROSS OUR SOUTH COULD LEAD TO A FEW MORE CLOUDS ALONG AND SOUTH OF THE OHIO RIVER ON SATURDAY...BUT ALL IN ALL EXPECT MOSTLY SUNNY/MOSTLY CLEAR CONDITIONS THROUGH MUCH OF THE SHORT TERM PERIOD. AS HEIGHTS BEGIN TO RISE...SHOULD SEE A BIT OF A WARMING TREND SATURDAY INTO SUNDAY SO WENT AT OR A LITTLE BIT ABOVE GUIDANCE FOR HIGHS. && .LONG TERM /MONDAY THROUGH FRIDAY/... MODELS CONTINUE TO BE IN GOOD AGREEMENT ON THE LARGE SCALE PATTERN THROUGH EARLY NEXT WEEK...WITH DOMINANT UPPER RIDGE BUILDING INTO THE EASTERN U.S. ON SUNDAY AND KEEPING ITS HOLD OVER THE REGION THROUGH MIDWEEK. THIS WILL KEEP TEMPS WELL ABOVE AVERAGE THROUGH THE PERIOD WHILE CONDITIONS REMAIN DRY. WENT ABOVE GUIDANCE FOR TEMPS TOWARD TUES AND WEDS AS SURFACE HIGH SHIFTS TO THE EAST...BRINGING IN WARM SOUTHWESTERLY FLOW. INCREASING 850 MB TEMPS ARE SUPPORTIVE OF HIGHS IN THE LOWER 90S ACROSS THE SOUTHWESTERN HALF OF THE CWA BY TUESDAY. NEXT SYSTEM OF INTEREST ENTERS THE PICTURE LATE IN THE EXTENDED AS THE UPPER RIDGE FLATTENS AND A COLD FRONT MOVES INTO THE GREAT LAKES. SIDED WITH THE SLOWER ECMWF KEEPING THE FRONTAL BOUNDARY TO THE NORTH OF THE CWA THROUGH THURSDAY...SO DID NOT INTRODUCE POPS AT THIS TIME. && .AVIATION /20Z FRIDAY THROUGH WEDNESDAY/... SHORTWAVE ENERGY TO PASS THRU THE GREAT LAKES IN THE WESTERLIES TDA/TNGT. COLD FRONT CURRENTLY FROM NW OHIO THRU EASTERN INDIANA TO PUSH EAST THRU THE TAF SITES LATE THIS AFTN/EVENING. FCST SOUNDINGS INDICATE A CAP IS IN PLACE THRU LATER THIS AFTN. GFS WHICH IS TOO HIGH WITH SFC DEWPOINTS IS THEREFORE OVERDONE WITH 2500 J/KG BOUNDARY LYR CAPE DEVELOPING THIS AFTN. PREFER NAM SOLN WHICH HAS A BETTER HANDLE ON LOW LEVEL TD/S AND DEVELOPS BOUNDARY LAYER CAPES AROUND 1500 J/KG. AS FRONT APPROACHES WEAK LOW LEVEL FORCING COMES INTO PLAY. THIS FORCING...ALONG WITH THE INSTBY SHUD LEAD TO THE DEVELOPMENT OF SCTD THUNDERSTORMS. DUE TO THE LIMITED COVERAGE HAVE ONLY MENTIONED VCTS AT THIS TIME. WITH LIGHT WINDS AND CLEARING TONIGHT THE DEVELOPMENT OF FOG WL BE A POSSIBILITY. HAVE A MENTION OF MVFR VSBY RESTRICTIONS AT ALL BUT KDAY WHERE DRIER AIR IS EXPECTED. OUTLOOK...NO SIGNIFICANT WEATHER IS EXPECTED. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...NONE. KY...NONE. IN...NONE. && SYNOPSIS...JGL NEAR TERM...JGL SHORT TERM...JGL LONG TERM...RYAN AVIATION...AR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 416 PM EDT FRI AUG 29 2008 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-302030- 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- 416 PM EDT FRI AUG 29 2008 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...TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. 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 409 PM EDT FRI AUG 29 2008 KYZ091-292115- BOONE KY- 409 PM EDT FRI AUG 29 2008 ...A STRONG THUNDERSTORM WILL AFFECT BOONE COUNTY THROUGH 515 PM EDT... AT 406 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM LOCATED NEAR HUEYS CORNERS...MOVING EAST AT 9 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE...HUEYS CORNERS...BURLINGTON...BEAVERLICK...OAKBROOK...VERONA...UNION... FLORENCE...RICHWOOD AND WALTON. FREQUENT CLOUD TO GROUND LIGHTNING WILL ALSO OCCUR. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. THIS STORM WILL ALSO BE CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY FLOOD ROADS...DITCHES AND LOW LYING AREAS. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD AND AVOID FLOOD PRONE AREAS.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
445 PM EDT FRI AUG 29 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0442 PM HAIL 2 S FRANCISVILLE 39.08N 84.73W
08/29/2008 E0.75 INCH BOONE KY TRAINED SPOTTER
I-275 AND ST ROUTE 237 INTERCHANGE
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
628 PM EDT FRI AUG 29 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0628 PM FLASH FLOOD CENTER SQUARE 38.84N 85.03W
08/29/2008 SWITZERLAND IN LAW ENFORCEMENT
REPORTS OF FLOODING ON ROADWAYS
&&
NGThe Louisville radar (KLVX), 122 km away, was scanning. The volume nearest the first event began at 22:28 UTC.
1 flash flood. Local standard time, as filed.
Roads were flooded in Center Square.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2008Every state in 2008This day in weather historyWarnings in Indiana, August 2008
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: 123431.