Alert archive / Ohio / Heat Advisories
Heat Advisories in Ohio, 2025
27 heat advisories in 2025. 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Heat Advisories
- 27
- Busiest month
- July17 heat advisories
- Busiest day
- June 21, 20255 heat advisories
Over time
By month
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 |
|---|---|---|---|---|
| Jun 21, 1:28 AM EDT | Heat Advisory | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 7 days |
| Jun 21, 2:21 AM EDT | Heat Advisory | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 7 days |
| Jun 21, 2:23 AM EDT | Heat Advisory | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 4 days |
| Jun 21, 4:02 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 23 hr |
| Jun 21, 4:20 AM EDT | Heat Advisory | RLX | Jackson, Morgan, Perry, Vinton | 6 days |
| Jun 25, 2:43 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 17 hr |
| Jun 25, 11:25 AM EDT | Heat Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 57 hr |
| Jun 26, 3:42 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 16 hr |
| Jun 27, 3:09 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 16 hr |
| Jul 23, 12:05 AM EDT | Heat Advisory | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 68 hr |
| Jul 23, 12:20 AM EDT | Heat Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 44 hr |
| Jul 23, 1:45 AM EDT | Heat Advisory | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 42 hr |
| Jul 23, 2:30 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 42 hr |
| Jul 23, 1:10 PM EDT | Heat Advisory | PBZ | Coshocton, Guernsey, Muskingum, Noble, Tuscarawas | 31 hr |
| Jul 25, 2:50 AM EDT | Heat Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 17 hr |
| Jul 26, 1:20 AM EDT | Heat Advisory | ILN | Adams, Brown, Butler, Clermont, Clinton, Fairfield and 9 more | 19 hr |
| Jul 26, 2:08 AM EDT | Heat Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 18 hr |
| Jul 27, 1:04 AM EDT | Heat Advisory | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 23 more | 4 days |
| Jul 27, 1:44 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 19 hr |
| Jul 27, 1:45 PM EDT | Heat Advisory | ILN | Greene, Montgomery, Preble | 54 hr |
| Jul 27, 2:24 PM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 31 hr |
| Jul 28, 5:09 AM EDT | Heat Advisory | RLX | Athens, Morgan, Perry, Washington | 63 hr |
| Jul 28, 1:13 PM EDT | Heat Advisory | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 31 hr |
| Jul 28, 1:28 PM EDT | Heat Advisory | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 31 hr |
| Jul 29, 12:27 AM EDT | Heat Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 21 hr |
| Jul 30, 12:51 AM EDT | Heat Advisory | PBZ | Monroe, Noble | 19 hr |
| Aug 16, 1:30 PM EDT | Heat Advisory | RLX | Gallia, Jackson, Lawrence, Meigs | 30 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allen County8
- Defiance County8
- Fulton County8
- Henry County8
- Paulding County8
- Putnam County8
- Van Wert County8
- Williams County8
- Jackson County6
- Morgan County6
- Perry County6
- Vinton County5
- Athens County5
- Gallia County5
- Lawrence County5
- Meigs County5
- Washington County5
- Noble County4
- Adams County4
- Brown County4
- Butler County4
- Clermont County4
- Clinton County4
- Fairfield County4
- Fayette County4
- Hamilton County4
- Highland County4
- Hocking County4
- Pickaway County4
- Pike County4
- Ross County4
- Scioto County4
- Warren County4
- Coshocton County3
- Guernsey County3
- Monroe County3
- Muskingum County3
- Tuscarawas County3
- Auglaize County3
- Champaign County3
48 more counties
- Clark County3
- Darke County3
- Delaware County3
- Franklin County3
- Greene County3
- Hardin County3
- Licking County3
- Logan County3
- Madison County3
- Mercer County3
- Miami County3
- Montgomery County3
- Preble County3
- Shelby County3
- Union County3
- Ashland County3
- Ashtabula County3
- Crawford County3
- Cuyahoga County3
- Erie County3
- Geauga County3
- Hancock County3
- Holmes County3
- Huron County3
- Knox County3
- Lake County3
- Lorain County3
- Lucas County3
- Mahoning County3
- Marion County3
- Medina County3
- Morrow County3
- Ottawa County3
- Portage County3
- Richland County3
- Sandusky County3
- Seneca County3
- Stark County3
- Summit County3
- Trumbull County3
- Wayne County3
- Wood County3
- Wyandot County3
- Belmont County2
- Carroll County2
- Columbiana County2
- Harrison County2
- Jefferson County2
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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. Warning verification from the Mesonet's Cow. Rebuilt daily.