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 May 30, 4:17 PM EST, 6 minutes earlier.
AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE PITTSBURGH PA 517 PM EDT THU MAY 30 2002 UPDATING ZONES TO REMOVE FLOOD WATCH WHICH HAS EXPIRED. BASED ON RADAR AND THE RUC80 1000-850 LAYER THETA E...I EXPECT SHOWERS AND THUNDERSTORMS TO DEVELOP AND TRACK ALONG THE THETA E RIDGE. THIS RIDGE WILL STAY NORTH OF THE CITY OF PITTSBURGH. THEREFORE I INCREASED THE POP IN THOSE AREAS TO LIKELY...MAINLY THIS EVENING. CAT .PBZ... MD...NONE. OH...NONE. PA...NONE. WV...NONE.
PAZ007-013-301715- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1223 PM EDT THU MAY 30 2002 ...SMALL HAIL EXPECTED... A CLUSTER OF THUNDERSTORMS WILL MOVE BETWEEN MERCER AND NORTH OF NEW CASTLE BY 1240 PM. THE THUNDERSTORMS WILL BE NEAR GROVE CITY BY 155 PM. THESE THUNDERSTORMS ARE EXPECTED TO PRODUCE INTENSE RAINFALL...FREQUENT CLOUD TO GROUND LIGHTNING...AND HAIL UP TO ONE HALF INCH. A BRIEF WIND GUST MAY EXCEED 30 MPH WITH THESE STORMS. RESIDENTS SHOULD REMAIN ALERT FOR POSSIBLE WARNINGS.
PAZ014-020-301815- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 110 PM EDT THU MAY 30 2002 ...THUNDERSTORMS BUILDING TO THE WEST... A BUILDING LINE OF THUNDERSTORMS WILL MOVE EASTWARD TO A POSITION FROM NORTH OF BEAVER FALLS...TO ELLWOOD CITY...TO PORTERSVILLE...TO WEST LIBERTY...TO SLIPPERY ROCK...TO CLINTONVILLE...TO KENDERDELL BY 130 PM. THE LINE WILL MOVE PAST WEST SUNDBURY...BUTLER...ZELIENOPLE...AND CALLERY BETWEEN 130 AND 2 PM. THESE STORMS WILL PRODUCE FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND A BRIEF PERIOD OF INTENSE RAINFALL. RAINFALL AMOUNTS MAY TOTAL MORE THAN ONE HALF INCH IN A SHORT PERIOD...LEADING TO PONDING IN URBAN AREAS. RESIDENTS SHOULD REMAIN ALERT FOR POSSIBLE WARNINGS.
PAZ009-014>016-022-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 226 PM EDT THU MAY 30 2002 ...SLOW MOVING THUNDERSTORMS MOVING THROUGH OUR AREA... THUNDERSTORMS WITH HEAVY DOWNPOURS AND FREQUENT LIGHTNING ARE SLOWLY MOVING EAST THROUGH OUR AREA. STORMS WILL MOVE EAST OF US BY 4 PM. AN INCH OF RAIN IN LESS THAN AN HOUR CAN OCCUR WITH THESE STORMS. GUSTY WINDS TO 40 MPH AND HAIL IS ALSO POSSIBLE. MOTORISTS SHOULD EXERCISE CAUTION DUE TO REDUCED VISIBILITIES AND PONDING OF WATER.
OHZ057-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 248 PM EDT THU MAY 30 2002 SLOW MOVING THUNDERSTORM OVER SOUTHWEST MUSKINGUM COUNTY... A SLOW MOVING THUNDERSTORM WITH HEAVY DOWNPOURS AND FREQUENT LIGHTNING HAS MOVED INTO THE SOUTHWEST PART OF MUSKINGUM COUNTY. THE STORM IS MOVING NORTHEAST AT ONLY 10 MPH. AN INCH OF RAIN IN LESS THAN AN HOUR CAN OCCUR ALONG WITH GUSTY WINDS TO 40 MPH AND HAIL. CITIES IN THE PATH OF THIS STORM ARE ZANESVILLE, DARLINGTON, SONORA AND NORWICH. MOTORISTS SHOULD EXERCISE CAUTION DUE TO REDUCED VISIBILITIES AND PONDING OF WATER.
OHZ048-302100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 356 PM EDT THU MAY 30 2002 SLOW MOVING THUNDERSTORMS MOVING INTO SOUTHWEST COSHOCTON COUNTY... THUNDERSTORMS WITH HEAVY DOWNPOURS AND FREQUENT LIGHTNING ARE SLOWLY MOVING NORTHEAST INTO THE SOUTHWEST CORNER OF COSHOCTON COUNTY. AN INCH OF RAIN IN LESS THAN AN HOUR CAN OCCUR WITH THESE STORMS. GUSTY WINDS TO 40 MPH AND HAIL IS ALSO POSSIBLE. CITIES IN THE PATH OF THE STORMS ARE WAKATOMIKA, WEST CARLISLE, COOPERDALE, AND NEW GUILFORD. MOTORISTS SHOULD EXERCISE CAUTION DUE TO REDUCED VISIBILITIES AND PONDING OF WATER.
OHZ068-302215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 514 PM EDT THU MAY 30 2002 SLOW MOVING THUNDERSTORMS MOVING THROUGH OUR AREA... THUNDERSTORMS WITH HEAVY DOWNPOURS AND FREQUENT LIGHTNING ARE SLOWLY MOVING INTO THE SOUTHWEST SECTIONS OF NOBLE COUNTY. THE STORMS ARE MOVING NORTHEAST AT 15 MPH. AN INCH OF RAIN IN LESS THAN AN HOUR CAN OCCUR WITH THESE STORMS. GUSTY WINDS TO 40 MPH AND HAIL IS ALSO POSSIBLE. CITIES IN THE PATH OF THESE STORMS ARE CALDWELL, OLIVE GREEN, SHARON AND DEXTER CITY. MOTORISTS SHOULD EXERCISE CAUTION DUE TO REDUCED VISIBILITIES AND PONDING OF WATER.
The Cleveland radar (KCLE), 124 km away, was scanning. The volume nearest the first event began at 21:23 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms produced 3.5 inches of rain in only 45 minutes. This torrential downpour produced basement flooding in the Mound area, along with water damage to portions of State Route 83 and County Road 12.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2002Every state in 2002This day in weather historyWarnings in Ohio, May 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: 5299379.