Alert archive / Ohio / Flash Flood Warnings / 2026

Flash Flood Warnings in Ohio, September 2026

60 flash flood warnings in September 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.

Flash Flood Warnings by county

Each county as a circle sized by its count in September 2026. Tap one for its archive.

Flash Flood Warnings
60
Busiest day
September 21, 202615 flash flood warnings

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Sep 3, 3:28 PM EDTFlash Flood WarningRLXWashington114 min
Sep 3, 5:20 PM EDTFlash Flood WarningCLEPortage, Summit3 hr
Sep 3, 5:28 PM EDTFlash Flood WarningPBZColumbiana5 hr
Sep 3, 5:43 PM EDTFlash Flood WarningPBZColumbiana6 hr
Sep 3, 5:47 PM EDTFlash Flood WarningCLEMahoning, Portage, Stark3 hr
Sep 3, 7:51 PM EDTFlash Flood WarningPBZCarroll, Columbiana, Harrison, Jefferson2 hr
Sep 4, 2:40 AM EDTFlash Flood WarningPBZJefferson3 hr
Sep 5, 3:34 AM EDTFlash Flood WarningILNLogan6 hr
Sep 5, 4:52 AM EDTFlash Flood WarningILNLogan, Union107 min
Sep 9, 8:54 PM EDTFlash Flood WarningPBZCarroll, Columbiana, Jefferson3 hr
Sep 9, 10:09 PM EDTFlash Flood WarningPBZColumbiana109 min
Sep 9, 11:04 PM EDTFlash Flood WarningRLXMorgan, Perry3 hr
Sep 9, 11:43 PM EDTFlash Flood WarningRLXMorgan3 hr
Sep 10, 12:06 AM EDTFlash Flood WarningPBZMonroe, Noble3 hr
Sep 10, 12:29 AM EDTFlash Flood WarningRLXWashington3 hr
Sep 10, 1:28 AM EDTFlash Flood WarningILNAdams, Highland, Pike, Ross5 hr
Sep 10, 1:57 AM EDTFlash Flood WarningRLXGallia, Jackson, Meigs, Vinton9 hr
Sep 10, 3:10 AM EDTFlash Flood WarningRLXGallia, Meigs8 hr
Sep 10, 4:16 AM EDTFlash Flood WarningILNAdams, Pike, Scioto4 hr
Sep 10, 4:49 AM EDTFlash Flood WarningRLXGallia, Jackson, Lawrence3 hr
Sep 10, 7:12 PM EDTFlash Flood WarningRLXJackson, Meigs, Vinton5 hr
Sep 10, 8:13 PM EDTFlash Flood WarningRLXGallia, Jackson, Meigs4 hr
Sep 12, 2:16 PM EDTFlash Flood WarningRLXGallia, Jackson, Lawrence3 hr
Sep 12, 2:37 PM EDTFlash Flood WarningRLXAthens, Gallia, Meigs, Washington3 hr
Sep 12, 3:33 PM EDTFlash Flood WarningRLXAthens, Meigs, Washington111 min
Sep 12, 6:01 PM EDTFlash Flood WarningILNHighland, Ross3 hr
Sep 12, 7:27 PM EDTFlash Flood WarningILNPike, Ross3 hr
Sep 16, 3:09 AM EDTFlash Flood WarningILNMercer4 hr
Sep 16, 6:54 PM EDTFlash Flood WarningILNPreble3 hr
Sep 16, 9:25 PM EDTFlash Flood WarningCLEKnox3 hr
Sep 16, 10:30 PM EDTFlash Flood WarningPBZCoshocton, Muskingum3 hr
Sep 16, 11:21 PM EDTFlash Flood WarningPBZCoshocton, Guernsey, Muskingum3 hr
Sep 17, 6:06 AM EDTFlash Flood WarningILNAuglaize, Mercer5 hr
Sep 17, 7:44 AM EDTFlash Flood Warning Considerable damage threatIWXVan Wert7 hr
Sep 19, 11:57 PM EDTFlash Flood Warning Considerable damage threatILNHocking, Pickaway, Ross9 hr
Sep 20, 12:25 AM EDTFlash Flood WarningRLXAthens, Vinton5 hr
Sep 20, 1:16 AM EDTFlash Flood WarningRLXAthens, Meigs, Vinton4 hr
Sep 20, 1:42 AM EDTFlash Flood WarningRLXAthens, Meigs, Washington4 hr
Sep 20, 1:54 AM EDTFlash Flood Warning Considerable damage threatILNClinton, Warren3 hr
Sep 20, 2:10 AM EDTFlash Flood WarningRLXJackson, Vinton3 hr
Sep 20, 2:48 AM EDTFlash Flood WarningPBZHarrison, Jefferson2 hr
Sep 20, 3:39 AM EDTFlash Flood Warning Considerable damage threatILNClermont3 hr
Sep 20, 4:38 AM EDTFlash Flood WarningRLXGallia, Jackson, Lawrence, Meigs, Vinton4 hr
Sep 20, 5:30 AM EDTFlash Flood WarningRLXGallia, Lawrence4 hr
Sep 20, 9:02 AM EDTFlash Flood WarningPBZBelmont, Guernsey, Harrison, Jefferson, Tuscarawas3 hr
Sep 20, 9:06 PM EDTFlash Flood WarningILNFayette, Greene2 hr
Sep 20, 9:10 PM EDTFlash Flood WarningILNGreene, Montgomery3 hr
Sep 20, 9:13 PM EDTFlash Flood WarningILNClinton, Warren3 hr
Sep 20, 10:35 PM EDTFlash Flood WarningRLXJackson, Meigs, Vinton6 hr
Sep 20, 10:37 PM EDTFlash Flood WarningILNFairfield, Hocking, Pickaway6 hr
Sep 20, 10:38 PM EDTFlash Flood WarningRLXAthens, Meigs, Vinton6 hr
Sep 20, 10:43 PM EDTFlash Flood WarningRLXAthens, Vinton6 hr
Sep 20, 10:45 PM EDTFlash Flood WarningRLXAthens, Gallia, Meigs, Washington6 hr
Sep 20, 11:22 PM EDTFlash Flood WarningRLXGallia, Meigs5 hr
Sep 20, 11:25 PM EDTFlash Flood WarningRLXGallia, Jackson, Vinton4 hr
Sep 20, 11:33 PM EDTFlash Flood WarningRLXMeigs6 hr
Sep 21, 12:06 AM EDTFlash Flood WarningRLXMorgan, Perry4 hr
Sep 21, 12:13 AM EDTFlash Flood WarningRLXAthens, Morgan, Perry, Washington4 hr
Sep 21, 1:54 AM EDTFlash Flood WarningPBZMuskingum3 hr
Sep 21, 2:35 AM EDTFlash Flood WarningRLXWashington106 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

5 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.