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 9, 1:15 PM EST, 2 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 215 PM EDT SAT AUG 9 2003 HEAVY RAIN IS OCCURRING OVER MY MOUNTAIN COUNTIES TO THE SOUTHEAST. ADDITIONAL RAINFALL ALSO DEVELOPING ALONG THE RIDGES AND MOVING SLOWLY TO THE NORTH. FLOOD WATCH IN EFFECT FOR GENERALLY THE SOUTH AND EAST SECTIONS OF THE CWA WHERE FFG ARE JUST ABOUT AN INCH IN ONE HOUR. EXPECT SLOW MOVING THUNDERSTORMS TO POP UP FOR THE REST OF THE DAY WITH PLENTY OF RAINFALL AND FLOODING CONCERNS. THANKS TO LWX AND RLX FOR RADAR INFORMATION TO HELP IN RAINFALL ASSESSMENT. SHORT TERM FORECAST HEAVY ON PERSISTENCE. HOWEVER...THIS PATTERN SHOULD BREAK BY WEDNESDAY WHEN THE WESTERN RIDGE MOVES EASTWARD. THIS WILL FINALLY GIVE US A TASTE OF SUMMER DURING THE SECOND HALF OF NEXT WEEK. PIT 66 78 66 79 / 50 40 30 40 HLG 64 78 62 79 / 50 40 30 40 MGW 65 80 64 80 / 50 40 30 40 ZZV 66 79 65 78 / 30 30 30 40 PHD 66 79 66 78 / 30 30 30 40 FKL 63 76 61 78 / 50 40 30 40 DUJ 62 76 63 78 / 50 40 30 40 LBE 64 78 64 79 / 50 40 30 40 BTP 64 76 64 78 / 50 40 30 40 IDI 62 76 63 78 / 50 40 30 40 ODM 61 75 61 77 / 60 40 30 30 .PBZ... MD...FLOOD WATCH FOR THIS AFTERNOON AND EVENING FOR ZONE MDZ001. OH...NONE. PA...FLOOD WATCH FOR THIS AFTERNOON AND EVENING FOR ZONES PAZ021... PAZ029>032. WV...FLOOD WATCH FOR THIS AFTERNOON AND EVENING FOR ZONES WVZ002>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>023-041-090900- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 452 AM EDT SAT AUG 9 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN PENNSYLVANIA EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND. .DAY ONE...TODAY SHOWERS AND THUNDERSTORMS WILL ONCE AGAIN DEVELOP ACROSS THE AREA TODAY. THESE STORMS COULD PRODUCE VERY HEAVY RAIN AND WILL BE SLOW MOVING. THIS WILL CONTINUE TO PROVIDE THE THREAT FOR FLASH FLOODING ON AREA STREAMS. .DAYS TWO THROUGH SEVEN... MORE SHOWER AND THUNDERSTORM ACTIVITY IS EXPECTED INTO THE BEGINNING OF NEXT WEEK. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
MDZ001-WVZ023-041-091800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 111 PM EDT SAT AUG 9 2003 ...THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH THE AREA... AT 1:10 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH TUCKER AND PRESTON COUNTIES IN WEST VIRGINIA AND GARRETT COUNTY IN MARYLAND. THESE STORMS ARE MOVING NORTH AT 15 MPH AND WILL AFFECT THE AREA BETWEEN 1:15 PM AND 2:00 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE... PARSONS... KINGWOOD AND OAKLAND. BE ALERT IF YOU ARE DRIVING AS HEAVY RAIN MAY CAUSE PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. IF YOU EXPERIENCE HIGH WATER...PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772. TYBURSKI
PAZ030-092000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 255 PM EDT SAT AUG 9 2003 ...THUNDERSTORMS WITH HEAVY RAIN DEVELOPING OVER THE AREA... AT 2:53 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAINFALL MOVING THROUGH EASTERN WESTMORELAND COUNTY. THESE STORMS ARE MOVING TO THE NORTHWEST AT 10 MPH AND WILL CONTINUE TO AFFECT THE AREA BETWEEN THROUGH 4:00 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE...NEW ALEXANDRIA... PLEASANT UNITY...AND CRABTREE. DRIVING MAY ALSO BE DIFFICULT ALONG ROUTE 22. BE ALERT IF YOU ARE TRAVELING THIS AFTERNOON AS HEAVY RAIN MAY CAUSE PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. IF YOU EXPERIENCE HIGH WATER...PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772. TYBURSKI
PAZ016-092015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 310 PM EDT SAT AUG 9 2003 ...HEAVY RAIN DEVELOPING RAPIDLY OVER THE AREA... AT 3:10 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL DEVELOPING RAPIDLY OVER CENTRAL AND WESTERN JEFFERSON COUNTY. THESE STORMS ARE NEARLY STATIONARY AND MAY DUMP UP TO ONE INCH OF RAIN THROUGH 4:15 PM. LOCATIONS THAT WILL BE AFFECTED BY THE HEAVY RAIN INCLUDE TIMBLIN...WORTHVILLE...AND BROOKVILLE. DRIVING MAY ALSO BE DIFFICULT ALONG INTERSTATE 80 IN EASTERN JEFFERSON COUNTY. BE ALERT IF YOU ARE TRAVELING THIS AFTERNOON AS HEAVY RAIN MAY CAUSE PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. IF YOU EXPERIENCE HIGH WATER...PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772. TYBURSKI
PAZ022-092015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 320 PM EDT SAT AUG 9 2003 ...THUNDERSTORMS WITH HEAVY RAINFALL DEVELOPING OVER THE AREA... AT 3:15 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAINFALL DEVELOPING OVER EASTERN ARMSTRONG COUNTY. THESE STORMS ARE MOVING SLOWLY TO THE WEST AND MAY DUMP UP TO AN INCH OF RAIN BY 4:20 PM. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE NEW BETHLEHEM...RURAL VALLEY...ATWOOD AND KEYSTONE LAKE. BE ALERT IF YOU ARE DRIVING AS HEAVY RAIN MAY CAUSE PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. IF YOU EXPERIENCE HIGH WATER...PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772. TYBURSKI
PAZ021-092030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 341 PM EDT SAT AUG 9 2003 ...THUNDERSTORMS DEVELOPING OVER THE AREA... AT 3:40 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS DEVELOPING OVER SOUTHWESTERN ALLEGHENY COUNTY. THESE STORMS ARE MOVING NORTH AT 15 MPH AND WILL AFFECT THE AREA BETWEEN 3:45 PM AND 4:30 PM. ADDITIONAL STORMS ARE DEVELOPING OVER THE ENTIRE AREA. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE IMPERIAL...CORAOPOLIS...ROBINSON TOWNSHIP...CRESCENT...SEWICKLEY AND THE PITTSBURGH INTERNATIONAL AIRPORT. BE ALERT IF YOU ARE DRIVING AS HEAVY RAIN MAY CAUSE PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. IF YOU EXPERIENCE HIGH WATER...PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772. TYBURSKI
PAZ008-009-015-092100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 401 PM EDT SAT AUG 9 2003 ...THUNDERSTORMS WITH HEAVY RAIN CONTINUING OVER THE AREA... AT 4:00 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS CONTINUING TO DEVELOP OVER FOREST...CLARION...AND VENANGO COUNTIES IN PENNSYLVANIA. THESE STORMS ARE SHOWING LITTLE MOVEMENT AND MAY DUMP UP TO AN INCH OF RAIN BETWEEN 4:05 PM AND 5:00 PM. CURRENTLY NO FLOODING HAS BEEN REPORTED BUT THE AREA IS SATURATED FROM RECENT RAINFALL AND ADDITIONAL HEAVY RAINFALL MAY CAUSE STREAMS AND CREEKS TO RISE ALONG WITH POOR DRAINAGE FLOODING. LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE SUGAR CREEK...RIMERSBURG...AND LYNCH. BE ALERT IF YOU ARE DRIVING AS HEAVY RAIN MAY CAUSE PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. IF YOU EXPERIENCE HIGH WATER...PLEASE CALL THE NATIONAL WEATHER SERVICE TOLL-FREE AT 1-877-633-6772. TYBURSKI
The Pittsburgh radar (KPBZ), 68 km away, was scanning. The volume nearest the first event began at 20:17 UTC.
1 flash flood. Local standard time, as filed.
Route 981 at Lee Valley Road flooded. Standing water on several back roads.
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: 5334178.