KinwarnOhio tornado warnings
The National Weather Service issued 593 tornado warnings, 4,758 severe thunderstorm warnings and 829 flash flood warnings for Ohio from 2016 to 2025, about 59, 476 and 83 a year. That ranks 21st of 52 states and territories for tornado warnings. Miami County had the most of any county: 35 tornado warnings.
Ohio warnings and radar right now
Checking the National Weather Service for Ohio…
Ohio counties ranked by tornado warnings
Warnings that listed each county, 2016 to 2025, and tornadoes recorded in the county since 1950. A warning can list several counties, so the county numbers add up to more than the state total.
| County | Tornado warnings | Severe thunderstorm | Flash flood | Tornadoes since 1950 |
|---|---|---|---|---|
| Miami County | 35 | 168 | 9 | 36 |
| Montgomery County | 28 | 181 | 23 | 22 |
| Darke County | 27 | 136 | 8 | 33 |
| Clinton County | 26 | 190 | 23 | 36 |
| Madison County | 26 | 155 | 13 | 16 |
| Fayette County | 26 | 148 | 18 | 18 |
| Highland County | 25 | 196 | 20 | 25 |
| Champaign County | 25 | 130 | 5 | 9 |
| Greene County | 24 | 167 | 22 | 25 |
| Pickaway County | 24 | 161 | 13 | 29 |
| Clark County | 24 | 156 | 10 | 34 |
| Brown County | 22 | 219 | 40 | 27 |
| Preble County | 22 | 142 | 23 | 17 |
| Belmont County | 20 | 219 | 41 | 6 |
| Franklin County | 19 | 179 | 18 | 41 |
| Ashland County | 19 | 171 | 15 | 20 |
| Summit County | 19 | 167 | 27 | 18 |
| Adams County | 18 | 187 | 34 | 19 |
| Licking County | 18 | 159 | 18 | 29 |
| Wayne County | 18 | 145 | 11 | 26 |
| Scioto County | 18 | 141 | 28 | 18 |
| Mercer County | 18 | 68 | 6 | 29 |
| Portage County | 17 | 183 | 16 | 19 |
| Warren County | 17 | 179 | 37 | 35 |
| Ross County | 17 | 148 | 19 | 16 |
| Meigs County | 17 | 145 | 41 | 6 |
| Union County | 17 | 118 | 14 | 12 |
| Logan County | 17 | 102 | 12 | 8 |
| Butler County | 16 | 154 | 42 | 25 |
| Delaware County | 16 | 123 | 17 | 15 |
| Jefferson County | 15 | 267 | 35 | 8 |
| Athens County | 15 | 160 | 45 | 5 |
| Fairfield County | 15 | 160 | 19 | 24 |
| Medina County | 15 | 159 | 21 | 31 |
| Trumbull County | 14 | 179 | 17 | 23 |
| Richland County | 14 | 166 | 11 | 30 |
| Huron County | 14 | 157 | 11 | 38 |
| Carroll County | 13 | 218 | 24 | 11 |
| Clermont County | 13 | 199 | 36 | 26 |
| Lawrence County | 13 | 163 | 46 | 10 |
| Lorain County | 13 | 163 | 29 | 36 |
| Ashtabula County | 13 | 147 | 14 | 16 |
| Stark County | 13 | 127 | 10 | 18 |
| Shelby County | 13 | 116 | 10 | 9 |
| Paulding County | 13 | 88 | 5 | 16 |
| Auglaize County | 13 | 84 | 12 | 24 |
| Harrison County | 12 | 235 | 28 | 5 |
| Columbiana County | 12 | 234 | 18 | 22 |
| Erie County | 12 | 132 | 15 | 15 |
| Pike County | 12 | 115 | 13 | 15 |
| Mahoning County | 12 | 109 | 14 | 18 |
| Seneca County | 11 | 173 | 9 | 24 |
| Geauga County | 11 | 159 | 17 | 19 |
| Crawford County | 11 | 141 | 7 | 18 |
| Marion County | 11 | 76 | 10 | 17 |
| Tuscarawas County | 10 | 232 | 30 | 16 |
| Gallia County | 10 | 168 | 46 | 8 |
| Cuyahoga County | 10 | 163 | 33 | 21 |
| Monroe County | 10 | 148 | 19 | 3 |
| Wood County | 10 | 121 | 6 | 28 |
| Knox County | 10 | 107 | 6 | 14 |
| Hancock County | 10 | 104 | 5 | 17 |
| Hocking County | 10 | 102 | 15 | 7 |
| Defiance County | 10 | 101 | 3 | 13 |
| Guernsey County | 9 | 223 | 14 | 12 |
| Muskingum County | 9 | 194 | 19 | 25 |
| Ottawa County | 9 | 116 | 10 | 15 |
| Holmes County | 9 | 107 | 11 | 12 |
| Jackson County | 9 | 97 | 36 | 7 |
| Putnam County | 9 | 95 | 3 | 28 |
| Henry County | 9 | 94 | 5 | 18 |
| Hamilton County | 8 | 185 | 51 | 18 |
| Washington County | 8 | 176 | 62 | 8 |
| Sandusky County | 8 | 135 | 9 | 14 |
| Morrow County | 8 | 120 | 8 | 18 |
| Wyandot County | 8 | 100 | 4 | 11 |
| Noble County | 7 | 158 | 15 | 4 |
| Vinton County | 7 | 113 | 32 | 6 |
| Van Wert County | 7 | 77 | 4 | 40 |
| Coshocton County | 6 | 186 | 18 | 6 |
| Lucas County | 6 | 77 | 9 | 12 |
| Perry County | 5 | 112 | 35 | 12 |
| Hardin County | 5 | 72 | 7 | 11 |
| Allen County | 5 | 59 | 1 | 23 |
| Morgan County | 4 | 131 | 35 | 1 |
| Lake County | 4 | 99 | 11 | 5 |
| Williams County | 4 | 89 | 2 | 9 |
| Fulton County | 2 | 71 | 3 | 14 |
Ohio warnings by year
Each warning counts once for the state, however many counties it covered. 2008 is the first full year the National Weather Service drew an outline around every warning.
Tornadoes since 1950
1,414 tornadoes have been recorded in Ohio since 1950, 23 of them rated 4 or 5 on the F or EF scale. They killed 199 people and injured 4,713. June had the most (297).
| Year | Tornado | Severe thunderstorm | Flash flood |
|---|---|---|---|
| 2026 to Oct 19 | 113 | 884 | 264 |
| 2025 | 55 | 572 | 115 |
| 2024 | 124 | 506 | 63 |
| 2023 | 79 | 455 | 52 |
| 2022 | 47 | 507 | 60 |
| 2021 | 42 | 350 | 82 |
| 2020 | 40 | 531 | 76 |
| 2019 | 84 | 666 | 124 |
| 2018 | 23 | 338 | 71 |
| 2017 | 60 | 501 | 130 |
| 2016 | 39 | 332 | 56 |
| 2015 | 26 | 391 | 65 |
| 2014 | 58 | 381 | 49 |
| 2013 | 60 | 543 | 90 |
| 2012 | 41 | 569 | 38 |
| 2011 | 85 | 850 | 104 |
| 2010 | 102 | 589 | 62 |
| 2009 | 59 | 392 | 34 |
| 2008 | 51 | 641 | 34 |
What stands out in Ohio
2024 was the busiest year for tornado warnings in Ohio since 2008, with 124 tornado warnings. The busiest year for flash flood warnings was 2017, with 130.
Since 2008, 3 tornado warnings and 8 flash flood warnings for Ohio were raised to a tornado emergency or a flash flood emergency for at least part of the warned area: the Weather Service’s rarest warning, used when a severe threat to life is happening or about to happen.
43 severe thunderstorm warnings for Ohio carried the “destructive” tag (winds of 80 mph or more, or hail 2.75 inches or larger) since the tag started in August 2021. Only those severe thunderstorm warnings set off Wireless Emergency Alerts on phones.
4 tornadoes in Ohio since 1950 were rated F5 or EF5, the strongest recorded there. The most recent was on May 31, 1985.
National Weather Service warnings from the Iowa Environmental Mesonet archive through October 19, 2026; tornado ratings from the Storm Prediction Center and NOAA Storm Events.
States next to Ohio
Tornado warnings for each neighboring state, 2016 to 2025.
- Kentucky 800 tornado warnings
- Indiana 696 tornado warnings
- Pennsylvania 445 tornado warnings
- Michigan 208 tornado warnings
- West Virginia 162 tornado warnings
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Ohio tornado warnings: questions people ask
How many tornado warnings does Ohio get a year?
About 59 a year: the National Weather Service issued 593 tornado warnings for Ohio from 2016 to 2025, 21st of 52 states and territories.
Which Ohio county gets the most tornado warnings?
Miami County has the most: 35 tornado warnings listed it from 2016 to 2025, ahead of Montgomery County with 28. A warning can list several counties, so county counts add up to more than the state total.
Which Ohio city gets the most tornado warnings?
Piqua has the most among cities and towns with 10,000 people or more: the outlines of 11 tornado warnings covered its center from 2016 to 2025.
When is tornado season in Ohio?
June and May: 39% of the 1,414 tornadoes recorded in Ohio since 1950 came in those two months. Tornadoes have struck Ohio in every month of the year.
About these numbers
Counts are National Weather Service warnings that listed an Ohio county, through October 19, 2026. How Kinwarn counts · Ohio data (CSV)
Cite: Kinwarn. “Ohio tornado warnings.” kinwarn.com/ohio. National Weather Service data through October 19, 2026.
Sources: IEM warning archive · NWS 2007 outlines · SPC tornado database · Census places · Census population estimates · NWS tornado alerts