Several waves of thunderstorms passing over East Central Ohio produced rainfall totals of over 2 inches at some locations. This rainfall produced numerous reports of roadway flooding across the area.
Every event with a place to put it; 7 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.
Several waves of thunderstorms passing over East Central Ohio produced rainfall totals of over 2 inches at some locations. This rainfall produced numerous reports of roadway flooding across the area.
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 12, 2:03 AM EST, 8 hours 8 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
303 AM EDT SUN AUG 12 2001
WL ISSUE FFA FOR SOUTHERN COUNTIES, DOVETAILING WITH RLXS WATCH. JUST
CANT GET RID OF THIS FRONT IN THE ZONAL FLOW WITH THE OCNL SHORT WAVES
MOVG OVER THE HI-MOISTURE ENVIRONMENT. BEST UPWARD MOTION IS N, W/
DEPARTING JET, BUT BEST LIFTED INDEX AND CAPE ARE S. PRECIP WATER
1.5-1.8 AGAIN.
NOTICEABLE VORT MAX REACHES PKB AT 12Z THIS MRNG. THOUGHT E OH WOULD BE
RAIN-FREE THIS AFTN, BUT AVN MODEL IS SLOWER WITH SFC LO. WHILE ETA
PUSHES SFC LOW TO JST, THIS AFTN, AVN STILL HAS IT BTWN DAY-CMH. WL
HAVE TO KEEP RAIN IN OHIO AND POINTS E ALL DAY. NOT BRAVE ENUF TO GIVE
TIMING. AVN PCPN ALSO HANGS FURTHER W, WHILE ETA PUSHES PCPN E TOO FAR.
AVN POPS ARE MUCH TOO LOW. WL FOLLOW HIER NGM POPS. QUITE A BIT OF
MOIST CONV JUST E OF PIT AFT 21Z TDA. SE ZONES WL HAVE HIEST POPS...A
LTL LOWER N.
.PBZ...FLASH FLOOD WATCH TIL 4 PM OHZ057>059-068-069-WVZ004-012-
021>023-041-PAZ031-032-MDZ001.The Pittsburgh radar (KPBZ), 159 km away, was scanning. The volume nearest the first event began at 15:11 UTC.
7 flash flood. Local standard time, as filed.
Nearly two inches of rainfall in just over an hour produced roadway flooding along SR 345.
Roadway and small stream flooding were reported in the Newcomerstown area.
Between 1.5 and 2.0 inches of rainfall in just over an hour flooded numerous roadways in the Cambridge area.
Several reports of roadway and basement flooding were received in the Woodsfield region
Flooding was reported along portions of SR 132.
Numerous reports of roadway and basement flooding were received from southern sections of Muskingum County, including the cities of Zanesville, Duncan Falls and Avondale.
Flooding was reported along several portions of SR 821 near Ava.
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, August 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: 5265559, 5265561, 5265560, 5265562, 5265627, 5265628, 5265629.