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 Jul 27, 8:50 AM EST, 5 hours 24 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 950 AM EDT SAT JUL 27 2002 SLOW MOVING THUNDERSTORM COMPLEX OVER CENTRAL OHIO WILL MOVE EASTSOUTHEAST AT 20 MPH. SO UPPED MENTION OF SHOWERS AND THUNDERSTORMS FOR HEAD OF OHIO REGION SOUTH OF INTERSTATE 70. WILL MONITOR INTENSITY OF STORMS ON RADAR BEFORE CONSIDERING ANY FLOOD WATCH. NORTHERN WEST VIRGINIA MOUNTAIN COUNTIES WILL BE VULNERABLE IF THEY GET MORE THAN 1.5 INCHES OF RAIN IN A COUPLE HOURS. OTHER AREAS CAN TAKE 3 INCHES. ETA AND AVN SHOW ADDITIONAL ORGANIZED STORMS POSSIBLE TONIGHT. CONCUR WITH SPC ABOUT SOME POTENTIAL FOR SEVERE CONSIDERING DIRECTIONAL SHEAR IN VERTICAL PROFILE. THIS CAN ALSO ENHANCE LOCAL RAIN AMOUNTS. HIGH TEMPERATURES TRIMMED BY ONE CATEGORY MOST LOCATIONS PER HEAVY CLOUD COVER. REST UNCHANGED. ...GIORDANO .PBZ... MD...NONE OH...NONE PA...NONE WV...NONE
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-272000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 1020 AM EDT SAT JUL 27 2002 ...UPDATE ON POTENTIAL FOR THUNDERSTORM HAZARDS... SLOW MOVING THUNDERSTORMS WILL BE MOVING ACROSS EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND WESTERN MARYLAND THIS AFTERNOON. THE NATIONAL WEATHER SERVICE SAYS THAT AREAS GETTING MORE THAN 1.5 INCHES OF RAIN IN A COUPLE HOURS CAN BE VULNERABLE TO FLOOD DEVELOPMENT. SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE ENTIRE HEAD OF THE OHIO REGION...INCLUDING WESTERN PENNSYLVANIA LATE THIS AFTERNOON AND TONIGHT. THE NATIONAL WEATHER SERVICE SAYS THESE STORMS CAN HAVE GUSTY WINDS OVER 40 MPH...HAIL...BESIDES LOCALLY HEAVY RAIN...WITH OVER 2 INCHES POSSIBLE. SO SKYWARN ACTIVATION MAY BE NEEDED TONIGHT. LISTEN FOR UPDATES.
The Pittsburgh radar (KPBZ), 68 km away, was scanning. The volume nearest the first event began at 19:11 UTC.
1 flash flood. Local standard time, as filed.
Torrential thunderstorm rains produced numerous cases of minor roadway flooding. Some basement flooding was also reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2002Every state in 2002This day in weather historyWarnings in Pennsylvania, July 2002
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: 5307083.