Flash Flood, Lawrence
- When
- September 3, 4:10 AM EST to 6:15 AM EST
- Where
- Lawrence County, New Castle
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 40.991, -80.334 (the zone’s center; the record gives no point)
Mercer Rd flooded.
Flash Flood in Pennsylvania, September 3, 2003
1 flash flood, as filed by the National Weather Service.
Where it happened
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.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What forecasters said that day
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 Sep 3, 2:53 AM EST, 1 hour 17 minutes earlier.
Area forecast discussion, Sep 3, 2:53 AM EST, 1 hour 17 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 353 AM EDT WED SEP 3 2003 COORDINATED WITH CRW ABOUT FLOOD WATCH TODAY. GOING WITH SOUTHERN ZONES UNTIL 8 PM. THE LOW MOVING ACROSS THE AREA SHOULD KICK OFF SOME AFTERNOON CONVECTION AND SPC HAS US IN A SLIGHT RISK FOR SEVERE. HPC HAS PUT THE EXCESSIVE RAINFALL JUST TO OUR SOUTH...BUT THERE COULD BE ENOUGH LOCALIZED RAINFALL IN OUR SOUTHERN ZONES TO PRODUCE FLASH FLOODING. AFTER THE SYSTEM PASSES BY THURSDAY WE SHOULD SEE NICE WEATHER FOR THE REST OF THE WEEK AS A STRONG HIGH PRESSURE PUSHES IN. FCSTID = 66 PIT 75 62 72 52 / 60 60 20 10 HLG 76 62 73 52 / 60 60 20 10 MGW 77 62 74 52 / 60 60 30 10 ZZV 77 62 75 53 / 60 50 20 10 PHD 76 61 73 52 / 60 50 10 10 FKL 72 59 70 50 / 50 40 20 10 DUJ 71 58 69 49 / 50 40 20 10 LBE 75 62 71 51 / 60 60 20 10 BTP 74 61 71 51 / 60 50 20 10 IDI 73 60 70 50 / 60 50 20 10 ODM 72 57 70 48 / 70 70 40 20 .PBZ... MD...FLOOD WATCH UNTIL 800 PM EDT TODAY FOR ZONE MDZ001. OH...NONE. PA...FLOOD WATCH UNTIL 800 PM EDT TODAY FOR ZONES PAZ031>032. WV...FLOOD WATCH UNTIL 800 PM EDT TODAY FOR ZONES WVZ004... WVZ012...WVZ021>023...WVZ041. CAT
Hazardous weather outlook, Sep 2, 4:20 AM EST, 23 hours 50 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-020915- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 520 AM EDT TUE SEP 2 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN PENNSYLVANIA EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND. .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED.
In the hours before
Special weather statement, Sep 3, 4:03 AM EST, 7 minutes before
PAZ008-009-015-031000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 503 AM EDT WED SEP 3 2003 ...THUNDERSTORM AND HEAVY RAIN UPDATE... NATIONAL WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH HEAVY RAIN WILL MOVE THROUGH VENANGO COUNTY, PENNSYLVANIA, AND THEN INTO CLARION AND FOREST COUNTIES BETWEEN 5 AND 6 AM. RAIN AMOUNTS OVER 1 INCH CAN CAUSE PONDING OF WATER ON ROADS AND IN POOR DRAINAGE AREAS. DO NOT DRIVE THROUGH ROADS WITH PONDED WATER. LISTEN FOR UPDATES.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- High Surf in Puerto Rico, September 3 to 4, 2003
- Flash Flood in Pennsylvania, September 3 to 4, 2003
- Wildfire in California, September 3 to 30, 2003
- Flash Flood and Heavy Rain in West Virginia, September 3 to 4, 2003
- Wildfire in California, September 3, 2003
- Flash Flooding in Texas, September 3, 2003
- Debris Flow and Hail in California, September 3, 2003
- Flash Flood in Arizona, September 3, 2003
- Flash Flooding and Flood in Maryland, September 3 to 4, 2003
- Lightning Strike in Pennsylvania, September 3, 2003
- Flash Flooding and Damaging Wind in Virginia, September 3, 2003
- Lightning Strikes in Oregon, September 3, 2003
More
Every storm in Pennsylvania in 2003Every state in 2003This day in weather historyWarnings in Pennsylvania, September 2003
Sources
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: 5374119.