Showers and thunderstorms training over nearly saturated ground produced flash flooding across portions of east central Ohio.
Every event with a place to put it; 2 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 episode as NWS PBZ wrote it up.
Showers and thunderstorms training over nearly saturated ground produced flash flooding across portions of east central Ohio.
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 Apr 11, 2:53 AM EST, 6 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 353 AM EDT WED APR 11 2001 MOISTURE CONVERGENCE INITIALLY SINKS SEWRD INTO MY NORTHERN WEST VA ZNS THIS MORNING THEN STRENGTHENS NORTHWARD INTO MY NORTHERN PA TIER THIS AFTN AS WARM FRONT LIFTS NEWRD. CONVECTION NOW ON THE WAIN BUT FEEL WILL REGENERATE THIS AFTN. WITH INCREASING INSTABILITY AND FFG NOS SO LOW...HALF AN INCH PER HOUR MOST ZNS...FEEL IT IS PRUDENT TO EXTEND FF WATCH TO AFTN AND INTO MY NORTHERN ZNS. ADDITONAL THREAT OF SEVERE WEATHER ALSO. AS WARM FRONT LIFTS NEWRD TONIGHT LOWERING TO CHC POPS ALL ZNS. THURS FRONT APROACHES WITH ANOTHER ROUND OF POSSIBLY SEVERE WEATHER. LOWERED TEMPS ON FRI AS 85H TEMPS NEAR +2 BY MIDDAY FRI OTHERWISE CLOSE TO MOS. .PBZ... MD...FLASH FLOOD WATCH UNTIL 400 PM EDT WEDNESDAY FOR ZONE MDZ001. OH...FLASH FLOOD WATCH UNTIL 400 PM EDT WEDNESDAY FOR ZONES OHZ039>041...OHZ048>050...OHZ057>059...OHZ068>069. PA...FLASH FLOOD WATCH UNTIL 400 PM EDT WEDNESDAY FOR ZONES PAZ007>009...PAZ013>016...PAZ020>023...PAZ029>032. WV...FLASH FLOOD WATCH UNTIL 400 PM EDT WEDNESDAY FOR ZONES WVZ001>004...WVZ012...WVZ021>023...WVZ041.
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-111530- SEVERE WEATHER POTENTIAL OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 540 AM EDT WED APR 11 2001 ...RISK OF SEVERE THUNDERSTORMS TODAY AND EARLY TONIGHT... THERE IS A RISK OF SEVERE THUNDERSTORMS TODAY AND EARLY TONIGHT ACROSS THE REGION. SCATTERED THUNDERSTORMS WILL BE IN THE REGION THIS MORNING BUT SHOULD BE MORE NUMEROUS THIS AFTERNOON AND EARLY THIS EVENING WHEN THE GREATEST THREAT OF SEVERE WEATHER WILL EXIST. THE THREAT OF SEVERE WEATHER WILL COME FROM DAMAGING WIND AND LARGE HAIL. IN ADDITION...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 400 PM EDT TODAY FOR THESE FOLLOWING COUNTIES... IN WESTERN PENNSYLVANIA... ALLEGHENY ARMSTRONG BEAVER BUTLER CLARION FAYETTE FOREST GREENE INDIANA JEFFERSON LAWRENCE MERCER VENANGO WASHINGTON WESTMORELAND IN MARYLAND... GARRETT IN EAST CENTRAL OHIO... BELMONT CARROLL COLUMBIANA COSHOCTON GUERNSEY HARRISON JEFFERSON MONROE MUSKINGUM NOBLE TUSCARAWAS IN WEST VIRGINIA... BROOKE HANCOCK MARION MARSHALL MONONGALIA OHIO PRESTON TUCKER WETZEL STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FUmRTHER DETAILS OR UPDATES. SKYWARN ACTIVATION MAY BE NEEDED THIS AFTERNOON.
The national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Heavy rains across southwest portions of the county forced streams over their banks, producing minor roadway flooding at locations such as Roseville and White Cottage.
Heavy rains across western sections of the county forced the temporary closure of several area roadways, including portions of State Routes 146, 147 and 821 in the Caldwell area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2001Every state in 2001This day in weather historyWarnings in Ohio, April 2001
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: 5240203, 5240204.