17 thunderstorm wind, 2 hail, 2 flood, as filed by the National Weather Service.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 27, 12:55 AM EST, 4 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 155 AM EDT WED AUG 27 2003 WITH SUPERCOMPUTER PROBLEMS AT NCEP AND SPORADIC SUBSTITUTE MODEL DATA( AFWA FOR ETA...NAVY NOGAPS FOR GFS)...WILL NOT MAKE SWEEPING CHANGES TO CURRENT FCST. CHANGES WILL FOCUS MORE ON THE SHORT TERM...WHICH INVOLVES TODAY AND THURSDAY. CURRENT KILN RADAR SHOWS SOME WIDELY SCATTERED SHRA/TSRA ACTIVITY JUST TO THE N OF CWFA. MORE THUNDERSTORMS WERE ERUPTING OVER SW MICHIGAN NEAR COLD FRONTAL BOUNDARY/WEAK SFC LOW. FOR TODAY...WITH LACK OF SIGNIFICANT UPR SUPPORT...THUNDERSTORMS SHOULD NOT BECOME WIDESPREAD. HOWEVER...AS AFOREMENTIONED FRONT APCHS FROM THE NW...EXPECT BEST CHC/S THIS AFTN TO BE ACRS THE N (WAPOK...DAY...CMH...AROUND 40 PERCENT). FOR THE SOUTH...PREVIOUS MODEL SOUNDINGS WERE SHOWING A DECREASE IN THE STRONG CAPPING INVERSION AROUND 850 MB. THUS...BELIEVE THERE WILL BE MORE BUILDUPS ACRS THE SOUTH THAN YESTERDAY...AND A 30 PERCENT CHC IS WARRANTED. FCST TEMPS LOOK OK AT THIS POINT. FOR TONIGHT...FRONT WILL MOVE SLOWLY SOUTH ACRS CWFA BEFORE STOPPING SOMEWHERE OVER SRN OHIO. AGAIN...WITH LACK OF SIGNIFICANT UPR SUPPORT AND LOW LVL FORCING...BELIEVE CONVECTION WILL GRADUALLY DISSIPATE TOWARD MIDNIGHT...AND WILL WORD ZONES THIS WAY. ON THURSDAY...FRONTAL BOUNDARY WILL MOVE NORTH AS A WEAK WARM FRONT...ALLOWING HUMID AIR TO OVERTAKE THE ENTIRE CWFA ONCE AGAIN. WITH UNSTABLE AIRMASS...CAN NOT RULE OUT AN ISOLD AFTN/EVENING THUNDERSTORMS. NEXT SIGNIFICANT FRONT IS EXPECTED ACRS THE CWFA FRIDAY INTO SATURDAY. .ILN...NONE. HICKMAN
INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-271100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 500 AM EDT WED AUG 27 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN INDIANA...NORTHERN KENTUCKY AND THE SOUTHWEST QUARTER OF OHIO. .DAY ONE...TODAY SCATTERED THUNDERSTORMS WILL BE POSSIBLE TODAY...ESPECIALLY THIS AFTERNOON AND INTO THIS EVENING. A FEW OF THE STORMS MAY APPROACH SEVERE LIMITS WITH DAMAGING WINDS BEING THE PRIMARY SEVERE WEATHER THREAT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED.
OHZ077-272000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 438 AM EDT WED AUG 27 2003 ...HEAT INDICES TO APPROACH 100 DEGREES ACROSS HAMILTON COUNTY AGAIN THIS AFTERNOON... A WARM AND MOIST AIRMASS REMAINS IN PLACE ACROSS THE OHIO VALLEY. TEMPERATURES ARE FORECAST TO CLIMB TO AROUND 90 DEGREES THIS AFTERNOON. THIS WILL COMBINE WITH HIGH HUMIDITIES TO ALLOW HEAT INDICES TO APPROACH 100 DEGREES...ESPECIALLY IN URBAN LOCATIONS. CHILDREN...THE ELDERLY AND PEOPLE WITH CHRONIC AILMENTS ARE USUALLY THE FIRST TO SUFFER FROM THE HEAT. HEAT EXHAUSTION...CRAMPS...OR IN EXTREME CASES HEAT STROKE CAN RESULT FROM PROLONGED EXPOSURE TO THESE CONDITIONS. FRIENDS...RELATIVES...OR NEIGHBORS SHOULD CHECK ON PEOPLE WHO MAY BE AT RISK DURING THIS HEAT SPELL. PERSONS ARE ADVISED TO AVOID PROLONGED WORK IN THE SUN...OR IN POORLY VENTILATED AREAS ON TUESDAY. KEEP PLENTY OF LIQUIDS ON HAND AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT. LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR FURTHER STATEMENTS ON THIS HEAT SITUATION.
OHZ077-261600- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE WILMINGTON OH 348 AM EDT TUE AUG 26 2003 ...HEAT INDICES TO APPROACH 100 DEGREES ACROSS HAMILTON COUNTY THIS AFTERNOON... A WARM...WESTERLY FLOW ALOFT WILL BRING HOT TEMPERATURES TO THE OHIO VALLEY REGION TODAY. TEMPERATURES ARE FORECAST TO REACH THE LOWER 90S. THESE TEMPERATURES...COMBINED WITH HIGH HUMIDITY...WILL ALLOW HEAT INDICES TO APPROACH 100 DEGREES...ESPECIALLY IN URBAN LOCATIONS. CHILDREN...THE ELDERLY AND PEOPLE WITH CHRONIC AILMENTS ARE USUALLY THE FIRST TO SUFFER FROM THE HEAT. HEAT EXHAUSTION...CRAMPS...OR IN EXTREME CASES HEAT STROKE CAN RESULT FROM PROLONGED EXPOSURE TO THESE CONDITIONS. FRIENDS...RELATIVES...OR NEIGHBORS SHOULD CHECK ON PEOPLE WHO MAY BE AT RISK DURING THIS HEAT SPELL. PERSONS ARE ADVISED TO AVOID PROLONGED WORK IN THE SUN...OR IN POORLY VENTILATED TODAY. KEEP PLENTY OF LIQUIDS ON HAND AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT. LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR FURTHER STATEMENTS ON THIS HEAT SITUATION.
OHZ077-272000- SPECIAL WEATHER STATEMENT...CORRECTION FOR DATE NATIONAL WEATHER SERVICE WILMINGTON OH 449 AM EDT WED AUG 27 2003 ...HEAT INDICES TO APPROACH 100 DEGREES ACROSS HAMILTON COUNTY THIS AFTERNOON... A WARM AND MOIST AIRMASS REMAINS IN PLACE ACROSS THE OHIO VALLEY. TEMPERATURES ARE FORECAST TO CLIMB TO AROUND 90 DEGREES THIS AFTERNOON. THIS WILL COMBINE WITH HIGH HUMIDITIES TO ALLOW HEAT INDICES TO APPROACH 100 DEGREES...ESPECIALLY IN URBAN LOCATIONS. CHILDREN...THE ELDERLY AND PEOPLE WITH CHRONIC AILMENTS ARE USUALLY THE FIRST TO SUFFER FROM THE HEAT. HEAT EXHAUSTION...CRAMPS...OR IN EXTREME CASES HEAT STROKE CAN RESULT FROM PROLONGED EXPOSURE TO THESE CONDITIONS. FRIENDS...RELATIVES...OR NEIGHBORS SHOULD CHECK ON PEOPLE WHO MAY BE AT RISK DURING THIS HEAT SPELL. PERSONS ARE ADVISED TO AVOID PROLONGED WORK IN THE SUN...OR IN POORLY VENTILATED TODAY. KEEP PLENTY OF LIQUIDS ON HAND AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT. LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR FURTHER STATEMENTS ON THIS HEAT SITUATION.
The Cincinnati radar (KILN), 110 km away, was scanning. The volume nearest the first event began at 09:56 UTC.
17 thunderstorm wind, 2 hail, 2 flood. Local standard time, as filed.
Numerous trees were downed on the northeast side of town. Ten streets were blocked by fallen trees, and one vehicle was struck by a tree.
Trees were downed.
Two trees were knocked down.
Strong thunderstorms with heavy rain remained nearly stationary across the northwest part of the Columbus metro area during the early morning. Locally two to three inches fell in about two hours in Dublin, causing high water on several roads.
Strong thunderstorms with heavy rain remained nearly stationary across the northwest part of the Columbus metro area during the early morning. Locally two to three inches fell in about two hours in Dublin, causing high water on several roads.
Trees and powerlines were downed.
Several hangars at Barnhart Memorial Airport sustained minor damage. A windmill was destroyed.
Trees were knocked down.
Trees and large limbs were knocked down.
Two large limbs were downed.
Numerous trees and large limbs were downed.
Several trees and large limbs were downed. A restaurant awning was blown down.
Trees and powerlines were downed.
Numerous trees and powerlines were downed. Siding was peeled off of a barn.
A mobile home being towed on a flatbed truck on US Route 50 was destroyed. One home had its roof blown off, and trees were downed throughout town.
Trees and powerlines were downed.
Several trees and large limbs were downed. Fallen trees caused minor damage to a house, and significant damage to a parked vehicle.
Trees were downed.
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: 5333947, 5333949, 5333948, 5333950, 5333184, 5333185, 5333088, 5333951, 5333089, 5333174, 5333952, 5333175, 5333173, 5333176, 5333177, 5333183, 5333178, 5333179, 5333180, 5333181, 5333182.