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 8, 12:48 PM EST, 7 hours 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 148 PM EDT FRI AUG 8 2003 ACTIVITY IS CONTINUING OVER MY SOUTHERN COUNTIES WITH ADDITIONAL DEVELOPMENT OCCURRING OVER WESTMORELAND, FAYETTE AND EAST CENTRAL OHIO COUNTIES. ALL OF THIS ACTION IS PUSHING TO THE NORTH SO HAVE EXPANDED THE FLOOD WATCH TO INCLUDE ALL COUNTIES IN THE CWA WITH RELATIVELY LOW FFGS AND A WARNING ALREADY ISSUED FOR WETZEL COUNTY. NOT MUCH CHANGE TO THE WET PATTERN WITH ACTIVITY BEING DIURNAL AND FOCUSED BY SHORT WAVES...PLENTY OF MOISTURE AVAILABLE. IT HAS DEFINITELY BEEN A PATTERN OF EXTREMES THIS SUMMER AS A HUGE RIDGE HAS HELPED BAKE THE WESTERN U.S...A DEEP TROUGH HAS MADE IT SOGGY AND COOL SUMMER OVER THE EAST AND THE POOR FOLKS IN EUROPE DEALING WITH UNPRECEDENTED HEAT. A LITTLE OF THAT WESTERN RIDGE ATTEMPTS TO INVADE THE EAST NEXT WEEK WITH 594 HEIGHTS MAKING IT TO MINNESOTA AND WISCONSIN BY MID WEEK. ANY REMNANTS OF THE TROUGH SHOULD BE PUSHED WELL TO OUR SOUTH. SO WE SHOULD SEE SOME DRY AND WARM WEATHER FOR AT LEAST A SHORT TIME. PIT 64 79 64 78 / 60 60 60 30 HLG 64 78 64 78 / 60 60 60 30 MGW 64 78 65 80 / 60 60 60 40 ZZV 65 78 65 79 / 50 50 50 30 PHD 65 78 65 79 / 50 50 50 30 FKL 62 76 62 76 / 50 50 50 30 DUJ 62 76 62 76 / 50 50 50 30 LBE 64 78 64 78 / 60 60 60 30 BTP 62 76 62 76 / 50 50 50 30 IDI 62 76 62 76 / 50 50 50 30 ODM 60 74 61 74 / 50 50 50 40 .PBZ... MD...FLOOD WATCH UNTIL 10 PM FOR ZONE MDZ001. OH...FLOOD WATCH UNTIL 10 PM FOR ZONES OHZ039>041...OHZ048>050...OHZ057>059...OHZ068>069. PA...FLOOD WATCH UNTIL 10 PM FOR ZONES PAZ007>008...PAZ013>016...PAZ020>023...PAZ029>032. WV...FLOOD WATCH UNTIL 10 PM FOR ZONES WVZ001>004...WVZ012...WVZ021>023...WVZ041. TYBURSKI
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-080900- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 504 AM EDT FRI AUG 8 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN PENNSYLVANIA EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND. .DAY ONE...TODAY DENSE FOG ACROSS THE REGION THIS MORNING WILL REDUCE VISIBILITIES TO LESS THAN ONE-QUARTER OF A MILE. THIS WILL MAKE THE MORNING COMMUTE DIFFICULT. SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE AREA TODAY. THESE STORMS COULD PRODUCE VERY HEAVY RAIN AND WILL BE SLOW MOVING. THIS WILL ONCE AGAIN SET UP THE RISK FOR FLASH FLOODING ON AREA STREAMS. .DAYS TWO THROUGH SEVEN... MORE SHOWER AND THUNDERSTORM ACTIVITY IS EXPECTED THROUGHOUT THE WEEKEND. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
PAZ029-082130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 432 PM EDT FRI AUG 8 2003 ...THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH THE AREA... AT 4:30 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL OCCURRING OVER SOUTHEASTERN WASHINGTON COUNTY. THESE STORMS ARE MOVING SLOWLY TO THE NORTH AND MAY PRODUCE UP TO AN INCH OF RAINFALL BETWEEN 4:35 PM AND 5:30 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE SCENERY HILL...MARIANNA...AND VESTABURG. HEAVY RAIN WILL MAKE DRIVING DIFFICULT ALONG INTERSTATE 70 AND U.S. ROUTE 40. BE ALERT FOR PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE FLOODING. IF YOU ARE DRIVING...DO NOT CROSS FLOODED ROADWAYS. IT ONLY TAKES A SMALL AMOUNT OF WATER TO LOSE CONTROL OF YOUR VEHICLE. IF YOU EXPERIENCE HIGH WATER PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772 WHEN YOU CAN DO SO SAFELY. TYBURSKI
PAZ016-082215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 520 PM EDT FRI AUG 8 2003 ...THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH THE AREA... AT 5:20 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL OCCURRING OVER JEFFERSON COUNTY IN PENNSYLVANIA. THESE STORMS ARE MOVING SLOWLY TO THE NORTHWEST AND MAY PRODUCE ONE-HALF TO ONE INCH OF RAINFALL BETWEEN 5:30 PM AND 6:20 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE PUNXSUTAWNEY...OLIVEBURG...AND BROOKVILLE. HEAVY RAIN WILL MAKE DRIVING DIFFICULT ALONG INTERSTATE 80. BE ALERT FOR PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE FLOODING. IF YOU ARE DRIVING...DO NOT CROSS FLOODED ROADWAYS. IT ONLY TAKES A SMALL AMOUNT OF WATER TO LOSE CONTROL OF YOUR VEHICLE. IF YOU EXPERIENCE HIGH WATER PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772 WHEN YOU CAN DO SO SAFELY. TYBURSKI
PAZ020-082230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 535 PM EDT FRI AUG 8 2003 ...THUNDERSTORMS WITH HEAVY RAINFALL DEVELOPING OVER THE AREA... AT 5:30 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAINFALL DEVELOPING OVER NORTH CENTRAL BEAVER COUNTY. THIS STORM IS NEARLY STATIONARY AND MAY PRODUCE ONE-HALF TO ONE INCH OF RAINFALL BETWEEN 5:30 PM AND 6:20 PM. LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE BIG BEAVER...NEW GALILEE...AND DARLINGTON. HEAVY RAIN WILL ALSO MAKE DRIVING DIFFICULT ALONG THE TURNPIKE. BE ALERT FOR PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE FLOODING. IF YOU ARE DRIVING...DO NOT CROSS FLOODED ROADWAYS. IT ONLY TAKES A SMALL AMOUNT OF WATER TO LOSE CONTROL OF YOUR VEHICLE. IF YOU EXPERIENCE HIGH WATER PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772 WHEN YOU CAN DO SO SAFELY. TYBURSKI
PAZ021-082230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 542 PM EDT FRI AUG 8 2003 ..THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH THE AREA... AT 5:40 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL OCCURRING OVER SOUTHEASTERN ALLEGHENY COUNTY. THESE STORMS ARE MOVING SLOWLY TO THE NORTH AND MAY PRODUCE UP TO ONE-HALF INCH OF RAINFALL BETWEEN 5:45 PM AND 6:20 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE SOUTH PARK...BRENTWOOD...AND BALDWIN. HEAVY RAIN WILL MAKE DRIVING DIFFICULT ALONG ROUTE 51. BE ALERT FOR PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE FLOODING. IF YOU ARE DRIVING...DO NOT CROSS FLOODED ROADWAYS. IT ONLY TAKES A SMALL AMOUNT OF WATER TO LOSE CONTROL OF YOUR VEHICLE. IF YOU EXPERIENCE HIGH WATER PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772 WHEN YOU CAN DO SO SAFELY. TYBURSKI
OHZ041-082330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 644 PM EDT FRI AUG 8 2003 ..THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH THE AREA... AT 6:42 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL OCCURRING OVER SOUTHEASTERN COLUMBIANA COUNTY IN OHIO. THESE STORMS ARE NEARLY STATIONARY AND MAY PRODUCE UP TO 0.50 INCHES OF RAIN BETWEEN 6:45 PM AND 7:30 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE ROGERS...ELKTON...AND WEST POINT. BE ALERT FOR PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE FLOODING. IF YOU ARE DRIVING...DO NOT CROSS FLOODED ROADWAYS. IT ONLY TAKES A SMALL AMOUNT OF WATER TO LOSE CONTROL OF YOUR VEHICLE. IF YOU EXPERIENCE HIGH WATER PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772 WHEN YOU CAN DO SO SAFELY. TYBURSKI
PAZ008-013-014-020-090145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 851 PM EDT FRI AUG 8 2003 ...SLOW MOVING THUNDERSTORMS... SLOW MOVING THUNDERSTORMS WILL CONTINUE THROUGH 10 PM. THE STRONGEST STORMS WILL CONTINUE BETWEEN HARSHAVILLE...BEAVER FALLS...ZELIENOPLE...WEST LIBERTY...FRANKLIN...AND OIL CITY. THESE STORMS ARE CAPABLE OF PRODUCING AN INCH OF RAINFALL IN 30 MINUTES AND FREQUENT CLOUD TO GROUND LIGHTNING. SOME AREAS WILL RECEIVE GREATER THAN AN INCH AND ONE HALF THROUGH 10 PM...CAUSING DRAINAGE FLOODING AND PONDING IN LOW LYING AREAS. DO NOT DRIVE YOUR CAR THROUGH FLOWING WATER. MOST FLOOD RELATED DEATHS OCCUR WHEN MOTORISTS TRY TO CROSS FLOODED ROADS. RESIDENTS SHOULD PAY ATTENTION FOR FURTHER UPDATES AND POSSIBLE WARNINGS.
The Pittsburgh radar (KPBZ), 49 km away, was scanning. The volume nearest the first event began at 01:29 UTC.
1 flash flood. Local standard time, as filed.
Perry Highway and several other roads flooded between Zelienople and Harmony.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2003Every state in 2003This day in weather historyWarnings in Pennsylvania, 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: 5334172.