10 thunderstorm wind, as filed by the National Weather Service.
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 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 26, 2:30 PM EST, 3 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 330 PM EDT TUE AUG 26 2003 LINE OF CONVECTION CONTINUES TO MOVE ACROSS FAR NORTHERN PARTS OF THE ILN FA. MUCH OF THE NORTHERN AND CENTRAL FCST AREA UNDER A SVR TS WATCH UNTIL 6 PM...MAINLY FOR DAMAGING WINDS. TEMPS ARE NEAR 90 SOUTH OF THE CLOUD COVER STREAMING OUT FROM THIS AREA. FOR TONIGHT...THE EXISTING CONVECTION WILL NOT PENETRATE TOO FAR SOUTHWARD AS FCST SNDGS INDICATE ATMOSPHERE BECOMES PROGRESSIVELY MORE CAPPED AS ONE PROGRESSES SOUTH. HOWEVER...THE ETA DEVELOPS ANOTHER S/W LATE COINCIDENT WITH A LL JET LATE SO WILL CARRY SOME POPS EVERYWHERE BUT THE FAR SOUTH. ON WEDNESDAY...ANOTHER BNDRY WILL DRIFT ACROSS THE AREA WITH CAPES AROUND/OVER 3000 J/KG IN THE NORTH AND SOMEWHAT LESS IN THE SOUTH. IN ADDITION...THERE IS VERY LITTLE CIN IN NORTH AND NOT A TREMENDOUS AMOUNT EVEN IN SOUTH. THIS BNDRY WILL LINGER ACROSS THE AREA THROUGH THE NIGHT...SO WILL CONTINUE POPS. FOR THURSDAY...THE BNDRY WASHES OUT AND/OR MOVES BACK NORTH. WILL CARRY AT LEAST SLIGHT CHANCE POPS. THERE IS NOT MUCH FORCING BUT INSTABILITY REMAINS HIGH WITH CAPES FROM 2500-3500 J/KG AUGMENTED BY LITTLE CONVECTIVE INHIBITION. FCST TEMPS LOOK FINE. ON THE EXTENDED...THE ECMWF IS STILL MORE PROGRESSIVE WITH THE WEEKEND FRONT THAN THE GFS WHICH HAS CONTINUED TO DELAY FROPA IN SE. THE ECMWF HAS FROPA LATE SAT NIGHT EVEN IN SE WHILE THE GFS WAITS UNTIL LATE SUNDAY THERE. DUE TO MUCH UNCERTAINTY...WILL COMPROMISE BETWEEN THESE MODELS WITH RESPECT TO TIMING. .ILN...NONE.
INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-261100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 500 AM EDT TUE AUG 26 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN INDIANA...NORTHERN KENTUCKY AND THE SOUTHWEST QUARTER OF OHIO. .DAY ONE...TODAY A WARM...WESTERLY FLOW ALOFT WILL CAUSE TEMPERATURES TO RISE INTO THE LOWER 90S. THESE TEMPERATURES...COMBINED WITH HIGH HUMIDITY...WILL RESULT IN HEAT INDICES BETWEEN 95 AND 100 DEGREES. PLEASE SEE CLESPSILN FOR SPECIFIC AREAS THAT EXPERIENCE HEAT RELATED PROBLEMS WHEN HEAT INDICES APPROACH 100 DEGREES. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH LABOR DAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Northern Indiana radar (KIWX), 126 km away, was scanning. The volume nearest the first event began at 22:37 UTC.
10 thunderstorm wind. Local standard time, as filed.
Tree limbs were downed. A few barns had roofs blown off in Rockford.
Numerous trees, large limbs and power poles were downed across the county, including thirty trees that fell along the southeast shore of Grand Lake Saint Marys. Several trees were knocked down on homes and vehicles in Saint Marys, causing major damage. A barn had siding peeled off east of Saint Marys.
Numerous trees and powerlines were downed across the town, including several that fell on houses and vehicles. Seventeen streets were blocked by fallen trees.
Trees were downed.
Several large trees were uprooted and downed. One home was destroyed by a fallen tree on Orchard Island.
Trees were knocked down.
Several trees up to twelve inches in diameter were knocked down across the southern and central portions of the county.
Several trees were downed.
Trees were downed, including a few that fell on a house and on a vehicle.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2003Every state in 2003This day in weather historyWarnings in Ohio, August 2003
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: 5333871, 5333938, 5333946, 5333939, 5333940, 5333941, 5333942, 5333944, 5333943, 5333945.