Extreme Heat Warnings in Ohio
9 extreme heat warnings since 1986. 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 extreme heat warnings reaches back to 2005.
Extreme Heat Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Extreme Heat Warnings
- 9
- Busiest year
- 20265 extreme heat warnings
- Average year
- 5over 2 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Gallia County4
- Lawrence County4
- Meigs County4
- Jackson County3
- Vinton County3
- Allen County2
- Athens County2
- Defiance County2
- Fulton County2
- Henry County2
- Paulding County2
- Putnam County2
- Van Wert County2
- Washington County2
- Williams County2
- Adams County1
- Ashland County1
- Ashtabula County1
- Auglaize County1
- Belmont County1
- Brown County1
- Butler County1
- Carroll County1
- Champaign County1
- Clark County1
- Clermont County1
- Clinton County1
- Columbiana County1
- Coshocton County1
- Crawford County1
- Cuyahoga County1
- Darke County1
- Delaware County1
- Erie County1
- Fairfield County1
- Fayette County1
- Franklin County1
- Geauga County1
- Greene County1
- Guernsey County1
48 more counties
- Hamilton County1
- Hancock County1
- Hardin County1
- Harrison County1
- Highland County1
- Hocking County1
- Holmes County1
- Huron County1
- Jefferson County1
- Knox County1
- Lake County1
- Licking County1
- Logan County1
- Lorain County1
- Lucas County1
- Madison County1
- Mahoning County1
- Marion County1
- Medina County1
- Mercer County1
- Miami County1
- Monroe County1
- Montgomery County1
- Morgan County1
- Morrow County1
- Muskingum County1
- Noble County1
- Ottawa County1
- Perry County1
- Pickaway County1
- Pike County1
- Portage County1
- Preble County1
- Richland County1
- Ross County1
- Sandusky County1
- Scioto County1
- Seneca County1
- Shelby County1
- Stark County1
- Summit County1
- Trumbull County1
- Tuscarawas County1
- Union County1
- Warren County1
- Wayne County1
- Wood County1
- Wyandot County1
The latest extreme heat warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 1:30 AM EDT | Extreme Heat Warning | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 5 days |
| Jun 30, 1:09 AM EDT | Extreme Heat Warning | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 5 days |
| Jun 30, 12:43 AM EDT | Extreme Heat Warning | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 4 days |
| Jun 29, 12:15 PM EDT | Extreme Heat Warning | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 4 days |
| Jun 28, 1:29 PM EDT | Extreme Heat Warning | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 5 days |
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.