Weather alerts in Ohio, 2020
2,915 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 2,915
- Warnings
- 1,042
- Watches
- 77
- Advisories
- 468
- Busiest month
- July512 alerts
- Busiest day
- July 10, 2020122 alerts
Over time
By month
The alerts
2,915 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Licking County167
- Cuyahoga County161
- Franklin County149
- Montgomery County146
- Clermont County142
- Delaware County142
- Miami County142
- Clark County138
- Lorain County137
- Union County134
- Shelby County130
- Hamilton County129
- Geauga County128
- Trumbull County128
- Fairfield County128
- Greene County128
- Brown County127
- Summit County126
- Medina County125
- Logan County125
- Erie County123
- Darke County123
- Washington County123
- Champaign County122
- Warren County122
- Ashtabula County121
- Allen County121
- Adams County121
- Clinton County120
- Portage County119
- Columbiana County118
- Scioto County118
- Muskingum County117
- Highland County116
- Madison County116
- Hardin County115
- Preble County115
- Guernsey County115
- Auglaize County114
- Lake County112
48 more counties
- Richland County111
- Huron County110
- Butler County110
- Knox County110
- Coshocton County110
- Harrison County110
- Mercer County109
- Tuscarawas County109
- Putnam County108
- Pickaway County108
- Morgan County107
- Sandusky County106
- Noble County106
- Defiance County105
- Marion County105
- Seneca County105
- Ashland County105
- Holmes County104
- Wayne County104
- Belmont County103
- Jefferson County102
- Mahoning County102
- Morrow County102
- Van Wert County101
- Fayette County101
- Perry County101
- Carroll County100
- Stark County100
- Williams County99
- Hancock County99
- Ottawa County99
- Hocking County99
- Athens County99
- Pike County98
- Ross County98
- Jackson County98
- Crawford County97
- Fulton County96
- Henry County96
- Lucas County96
- Meigs County96
- Gallia County94
- Lawrence County94
- Vinton County93
- Wood County92
- Paulding County91
- Monroe County89
- Wyandot County82
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.