1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 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 Pittsburgh, PA wrote its last area forecast discussion before the first event at Aug 30, 2:30 AM EST, 3 hours 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 330 AM EDT SAT AUG 30 2003 A LITTLE BEHIND THIS MORNING WITH DATA COMING IN SLOWLY. FRONT TAKES ITS TIME PUSHING THROUGH REGION TODAY...WITH HIGHEST QPF EXPECTED OVER MY SOUTHERN HALF. DECIDED TO EXTEND MY FFA IN THE SOUTH UNTIL 4PM. ETA AND GFS SIMILAR PUSHING FRONT SOUTH THIS EVENING BRINGING SOME BRIEF DRYING OVERNIGHT. AFTER THIS MODELS GREATLY DIFFER. ETA SHOWS COOL CANADIAN HIGH PRESSING IN KEEPING FRONTAL ZONE AND MOISTURE SOUTH...WHILE GFS WANTS TO PUSH FRONT NORTHWARD AND BRING IN PRECIP ON SUNDAY. TRIED TO FIND A COMPROMISE AS NEITHER IS SHOWING MUCH REASON TO BE MORE BELIEVABLE THAN THE OTHER. GFS SHOWS EXTENDED PERIOD OF UNSETTLED WEATHER AS FRONT BECOMES STATIONARY OVER MY SOUTH. KEPT IN MENTION OF PRECIP THROUGH MIDWEEK. .PBZ... MD...FLOOD WATCH UNTIL 400 PM EDT SATURDAY FOR ZONE MDZ001. OH...FLOOD WATCH UNTIL 400 PM EDT SATURDAY FOR ZONES OHZ039>041... OHZ048>050...OHZ057>059...OHZ068>069. PA...FLOOD WATCH UNTIL 400 PM EDT SATURDAY FOR ZONES PAZ020>021... PAZ029>032. WV...FLOOD WATCH UNTIL 400 PM EDT SATURDAY FOR ZONES WVZ001>004... WVZ012...WVZ021>023...WVZ041. RRR
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-301100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 501 AM EDT SAT AUG 30 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN PENNSYLVANIA EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND. .DAY ONE...TODAY FLOODING IS A POSSIBILITY ONCE AGAIN TODAY...MAINLY ACROSS THE SOUTHERN HALF OF WESTERN PENNSYLVANIA...EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND WESTERN MARYLAND. A SLOW MOVING COLD FRONT WILL CONTINUE TO USHER IN MOISTURE WHICH WILL CAUSE SCATTERED SHOWERS AND THUNDERSTORMS. SOME OF THIS RAIN COULD BE HEAVY ENOUGH TO CAUSE FLOODING THROUGH THIS AFTERNOON. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Cleveland radar (KCLE), 124 km away, was scanning. The volume nearest the first event began at 11:13 UTC.
1 flash flood. Local standard time, as filed.
Starting 7:13 AM EDT, numerous roads, especially in northern part of Coshocton County, were flooded. By 8:30 AM EDT, Mill Creek went out of its banks and flooded roads about 2 miles north of Coshocton. Some roads flooded: county road 12, state route 643, township road 1159, and route 36.
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: 5334582.