3 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 3 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 Wilmington, OH wrote its last area forecast discussion before the first event at Apr 11, 2:18 AM EST, 2 hours 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 318 AM EDT WED APR 11 2001 07Z SFC ANALYSIS INDICATED A STATIONARY BOUNDARY TO THE N OF DAY-CMH. A MCS MOVG ALONG THE BOUNDARY WAS AFFECTING MUCH OF OH-IN WITH MODERATE TO HEAVY RAINFALL. MODELS INDICATE THAT RIDING WL BUILD INTO FA TODAY AHEAD OF STRONG SYSTEM ACROSS THE PLAINS. HOWEVER...NWD MOVEMENT OF FRONT WL BE COMPLICATED BY OUTFLOW BOUNDARIES. AS LLVL WARMTH SURGES NWD XPCT SFC BASED INSTABILITY TO DEVELOP BY THE PM HOURS. CONSIDERING ALL THE ABOVE...WL KEEP THE CHANCE FOR SHRA/TSRA IN ALL GROUPS TODAY WITH THE BEST CHANCE ACROSS THE NRN MIAMI VLY AND LOWEST CVG-PMH. DO NOT XPCT ORGANIZED SVR STORMS SO WL LEAVE MENTION OUT OF FCST. FA WL BEGIN TO FEEL THE EFFECTS OF DEEP LOW OVER THE PLAINS TONIGHT. THIS FEATURE WL HAVE IMPRESSIVE WIND FIELDS. LOTS OF UNCERTAINTY AS TO THE TIMING OF SHRA/TSRA TONIGHT. IF THE STORMS MOVE THROUGH BEFORE 06Z THEY COULD BE SVR BUT IF LATER WOULD LIKELY FALL APART IN MINIMAL INSTABILITY. WL CARRY A CHC AND ISSUE SPS MENTIONING POSSIBLE SVR STORMS TONIGHT. WITH STRONG WIND FIELDS WL CARRY BREEZY WORDING TONIGHT AND WINDY ON WED. WENT A LITTLE WARMER THAN NGM MOS GUIDANCE TEMPS TONIGHT DUE TO STRONG SLY WINDS. .ILN...NONE. WILKINSON
INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-111600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 558 AM EDT WED APR 11 2001 ...RISK OF SEVERE THUNDERSTORMS AGAIN TODAY AND TONIGHT... THE STATIONARY BOUNDARY THAT HAS BROUGHT SEVERAL ROUNDS OF SEVERE WEATHER TO THE OHIO VALLEY THIS WEEK WILL LIFT TO THE NORTH TODAY IN RESPONSE TO A VERY STRONG LOW PRESSURE SYSTEM OVER THE PLAINS. A COLD FRONT WILL SWEEP ACROSS THE REGION ON THURSDAY MORNING. WARM AND MUGGY CONDITIONS ARE EXPECTED TODAY WHICH WILL CAUSE THE ATMOSPHERE TO DESTABILIZE ACROSS THE REGION. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON MAINLY NORTH OF INTERSTATE 70. HOWEVER...A FEW THUNDERSTORMS ARE STILL POSSIBLE FURTHER SOUTH. SOME OF THE STORMS THIS AFTERNOON MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS. AS THE STRONG LOW MOVES RAPIDLY NORTHEAST TONIGHT...A SQUALL LINE IS EXPECTED TO RACE ACROSS THE OHIO VALLEY. THE TIMING OF THIS SQUALL LINE IS UNCERTAIN...BUT THE STORMS WILL BE CAPABLE OF PRODUCING VERY STRONG WINDS. STORM SPOTTER ACTIVATION IS POSSIBLE LATE THIS AFTERNOON A ND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. WILKINSON
The Cincinnati radar (KILN), 79 km away, was scanning. The volume nearest the first event began at 09:58 UTC.
3 flash flood. Local standard time, as filed.
Creeks and streams were reported out of their banks across the county.
Roads were reported closed due to high water and basement flooding occurred across the county.
Roads were reported closed due to high water in Fairborn.
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: 5240155, 5240156, 5240157.