Alert archive / Ohio / Flash Flood Warnings / 2026
Flash Flood Warnings in Ohio, August 2026
88 flash flood warnings in August 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 August 2026. Tap one for its archive.
- Flash Flood Warnings
- 88
- Busiest day
- August 11, 202625 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:35 PM EDT | Flash Flood Warning | ILN | Butler, Darke, Preble | 3 hr |
| Aug 1, 9:56 PM EDT | Flash Flood Warning | ILN | Greene, Miami, Montgomery | 3 hr |
| Aug 2, 1:17 PM EDT | Flash Flood Warning | PBZ | Jefferson | 3 hr |
| Aug 5, 2:13 PM EDT | Flash Flood Warning | ILN | Scioto | 2 hr |
| Aug 7, 2:19 PM EDT | Flash Flood Warning | PBZ | Monroe, Noble | 2 hr |
| Aug 7, 2:58 PM EDT | Flash Flood Warning | PBZ | Jefferson | 3 hr |
| Aug 7, 3:05 PM EDT | Flash Flood Warning | ILN | Clermont, Hamilton | 3 hr |
| Aug 7, 4:19 PM EDT | Flash Flood Warning | ILN | Butler, Hamilton | 3 hr |
| Aug 7, 6:17 PM EDT | Flash Flood Warning | RLX | Athens, Jackson, Meigs, Vinton | 3 hr |
| Aug 7, 7:09 PM EDT | Flash Flood Warning | RLX | Meigs | 3 hr |
| Aug 10, 11:32 AM EDT | Flash Flood Warning | PBZ | Harrison, Jefferson | 3 hr |
| Aug 10, 12:30 PM EDT | Flash Flood Warning | ILN | Delaware, Franklin | 2 hr |
| Aug 10, 10:13 PM EDT | Flash Flood Warning | RLX | Morgan, Perry | 6 hr |
| Aug 10, 10:30 PM EDT | Flash Flood Warning | ILN | Auglaize, Hardin, Logan, Shelby, Union | 3 hr |
| Aug 10, 11:22 PM EDT | Flash Flood Warning | RLX | Athens, Morgan, Perry, Washington | 4 hr |
| Aug 10, 11:43 PM EDT | Flash Flood Warning | PBZ | Muskingum | 3 hr |
| Aug 10, 11:47 PM EDT | Flash Flood Warning | PBZ | Belmont, Harrison, Jefferson | 3 hr |
| Aug 11, 12:04 AM EDT | Flash Flood Warning | PBZ | Coshocton, Guernsey, Muskingum | 3 hr |
| Aug 11, 12:28 AM EDT | Flash Flood Warning | RLX | Perry | 3 hr |
| Aug 11, 12:37 AM EDT | Flash Flood Warning | RLX | Athens, Morgan, Washington | 3 hr |
| Aug 11, 12:49 AM EDT | Flash Flood Warning | CLE | Erie | 7 hr |
| Aug 11, 1:02 AM EDT | Flash Flood Warning | RLX | Perry | 118 min |
| Aug 11, 1:18 AM EDT | Flash Flood Warning | PBZ | Belmont | 3 hr |
| Aug 11, 2:20 AM EDT | Flash Flood Warning | PBZ | Carroll, Columbiana | 3 hr |
| Aug 11, 5:29 AM EDT | Flash Flood Warning | ILN | Fairfield, Franklin, Hocking, Licking | 3 hr |
| Aug 11, 7:18 AM EDT | Flash Flood Warning | PBZ | Coshocton, Guernsey, Muskingum, Noble, Tuscarawas | 7 hr |
| Aug 11, 7:33 AM EDT | Flash Flood Warning | PBZ | Carroll, Columbiana, Tuscarawas | 4 hr |
| Aug 11, 8:45 AM EDT | Flash Flood Warning | PBZ | Belmont, Guernsey, Monroe, Noble | 6 hr |
| Aug 11, 9:46 AM EDT | Flash Flood Warning | RLX | Morgan, Perry | 8 hr |
| Aug 11, 9:53 AM EDT | Flash Flood Warning | RLX | Athens, Morgan, Perry, Washington | 8 hr |
| Aug 11, 11:06 AM EDT | Flash Flood Warning | RLX | Perry | 4 hr |
| Aug 11, 11:21 AM EDT | Flash Flood Warning | RLX | Athens, Vinton, Washington | 7 hr |
| Aug 11, 11:24 AM EDT | Flash Flood Warning | RLX | Athens, Morgan, Washington | 7 hr |
| Aug 11, 12:11 PM EDT | Flash Flood Warning | RLX | Gallia, Meigs | 3 hr |
| Aug 11, 3:42 PM EDT | Flash Flood Warning | ILN | Fairfield, Franklin, Hocking, Madison, Pickaway | 3 hr |
| Aug 11, 3:49 PM EDT | Flash Flood Warning | ILN | Hamilton | 3 hr |
| Aug 11, 4:03 PM EDT | Flash Flood Warning | ILN | Brown, Clermont, Clinton, Highland, Warren | 3 hr |
| Aug 12, 8:50 AM EDT | Flash Flood Warning | ILN | Darke, Preble | 3 hr |
| Aug 12, 10:20 AM EDT | Flash Flood Warning | ILN | Butler | 2 hr |
| Aug 14, 12:22 AM EDT | Flash Flood Warning | RLX | Gallia, Jackson | 3 hr |
| Aug 14, 12:29 AM EDT | Flash Flood Warning | RLX | Jackson, Vinton | 3 hr |
| Aug 14, 12:30 AM EDT | Flash Flood Warning | ILN | Pike, Scioto | 3 hr |
| Aug 14, 6:47 AM EDT | Flash Flood Warning | RLX | Jackson, Vinton | 4 hr |
| Aug 14, 7:08 AM EDT | Flash Flood Warning | RLX | Meigs, Vinton | 4 hr |
| Aug 14, 7:56 AM EDT | Flash Flood Warning | RLX | Athens, Morgan, Washington | 3 hr |
| Aug 14, 8:33 AM EDT | Flash Flood Warning | RLX | Athens, Washington | 3 hr |
| Aug 15, 11:26 PM EDT | Flash Flood Warning | ILN | Franklin, Licking | 3 hr |
| Aug 16, 12:08 AM EDT | Flash Flood Warning | PBZ | Muskingum | 3 hr |
| Aug 16, 12:54 AM EDT | Flash Flood Warning | RLX | Perry | 7 hr |
| Aug 16, 12:59 AM EDT | Flash Flood Warning | ILN | Fairfield | 4 hr |
| Aug 16, 1:24 AM EDT | Flash Flood Warning | RLX | Morgan, Perry | 4 hr |
| Aug 16, 1:45 AM EDT | Flash Flood Warning | PBZ | Noble | 5 hr |
| Aug 16, 1:49 AM EDT | Flash Flood Warning | RLX | Morgan, Perry | 4 hr |
| Aug 16, 2:10 AM EDT | Flash Flood Warning | PBZ | Carroll, Tuscarawas | 3 hr |
| Aug 16, 2:43 AM EDT | Flash Flood Warning | PBZ | Monroe | 3 hr |
| Aug 16, 2:56 AM EDT | Flash Flood Warning | RLX | Morgan, Washington | 4 hr |
| Aug 16, 5:45 AM EDT | Flash Flood Warning | RLX | Gallia, Jackson, Lawrence | 3 hr |
| Aug 16, 1:40 PM EDT | Flash Flood Warning | PBZ | Muskingum | 3 hr |
| Aug 16, 1:44 PM EDT | Flash Flood Warning | RLX | Perry | 2 hr |
| Aug 16, 5:03 PM EDT | Flash Flood Warning | CLE | Crawford, Marion, Morrow | 4 hr |
| Aug 16, 6:22 PM EDT | Flash Flood Warning | PBZ | Coshocton, Guernsey, Muskingum | 4 hr |
| Aug 16, 6:57 PM EDT | Flash Flood Warning | PBZ | Muskingum | 4 hr |
| Aug 16, 7:01 PM EDT | Flash Flood Warning | RLX | Lawrence | 3 hr |
| Aug 16, 7:21 PM EDT | Flash Flood Warning | RLX | Athens, Meigs, Vinton | 3 hr |
| Aug 16, 7:30 PM EDT | Flash Flood Warning | PBZ | Noble | 3 hr |
| Aug 17, 1:13 PM EDT | Flash Flood Warning | RLX | Morgan | 3 hr |
| Aug 17, 1:15 PM EDT | Flash Flood Warning | RLX | Washington | 3 hr |
| Aug 17, 1:53 PM EDT | Flash Flood Warning | RLX | Washington | 7 hr |
| Aug 17, 5:22 PM EDT | Flash Flood Warning | RLX | Athens, Morgan, Washington | 3 hr |
| Aug 17, 5:34 PM EDT | Flash Flood Warning | RLX | Athens, Washington | 3 hr |
| Aug 17, 7:44 PM EDT | Flash Flood Warning | RLX | Meigs | 3 hr |
| Aug 19, 4:53 PM EDT | Flash Flood Warning | ILN | Logan, Shelby | 3 hr |
| Aug 19, 5:38 PM EDT | Flash Flood Warning | ILN | Shelby | 3 hr |
| Aug 19, 6:18 PM EDT | Flash Flood Warning | ILN | Delaware | 66 min |
| Aug 19, 7:04 PM EDT | Flash Flood Warning | ILN | Logan, Shelby | 105 min |
| Aug 19, 11:50 PM EDT | Flash Flood Warning | ILN | Preble | 4 hr |
| Aug 20, 1:24 AM EDT | Flash Flood Warning | ILN | Greene, Montgomery | 3 hr |
| Aug 20, 3:49 AM EDT | Flash Flood Warning | ILN | Fairfield, Franklin, Licking | 4 hr |
| Aug 20, 5:32 AM EDT | Flash Flood Warning | ILN | Auglaize, Hardin, Logan, Shelby, Union | 4 hr |
| Aug 20, 5:47 AM EDT | Flash Flood Warning | ILN | Fairfield, Pickaway | 3 hr |
| Aug 20, 6:03 AM EDT | Flash Flood Warning | RLX | Perry | 3 hr |
| Aug 20, 7:05 AM EDT | Flash Flood Warning | PBZ | Guernsey, Muskingum | 3 hr |
| Aug 20, 7:48 AM EDT | Flash Flood Warning | PBZ | Belmont, Guernsey, Harrison, Monroe, Noble | 3 hr |
| Aug 20, 8:18 AM EDT | Flash Flood Warning | PBZ | Belmont, Harrison, Jefferson | 3 hr |
| Aug 20, 10:40 AM EDT | Flash Flood Warning | RLX | Morgan, Perry | 3 hr |
| Aug 22, 1:55 PM EDT | Flash Flood Warning | CLE | Cuyahoga, Geauga, Lake | 4 hr |
| Aug 22, 4:38 PM EDT | Flash Flood Warning | PBZ | Coshocton | 3 hr |
| Aug 22, 6:25 PM EDT | Flash Flood Warning | RLX | Athens, Jackson, Meigs, Vinton | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Morgan County13
- Perry County13
- Athens County12
- Washington County12
- Muskingum County8
- Meigs County7
- Vinton County7
- Noble County6
- Jackson County6
- Guernsey County6
- Jefferson County5
- Franklin County5
- Shelby County5
- Belmont County5
- Fairfield County5
- Monroe County4
- Harrison County4
- Logan County4
- Coshocton County4
- Butler County3
- Preble County3
- Hamilton County3
- Carroll County3
- Licking County3
- Tuscarawas County3
- Gallia County3
- Darke County2
- Greene County2
- Montgomery County2
- Scioto County2
- Clermont County2
- Delaware County2
- Auglaize County2
- Hardin County2
- Union County2
- Columbiana County2
- Hocking County2
- Pickaway County2
- Lawrence County2
- Miami County1
Nearby
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.