Weather alerts in Ohio, 2018
2,944 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 2,944
- Warnings
- 955
- Watches
- 141
- Advisories
- 517
- Busiest month
- May558 alerts
- Busiest day
- April 3, 2018130 alerts
Over time
By month
The alerts
2,944 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.
- Washington County166
- Hamilton County165
- Montgomery County162
- Warren County161
- Pickaway County151
- Butler County149
- Licking County148
- Clermont County148
- Clinton County147
- Franklin County146
- Greene County139
- Madison County138
- Brown County137
- Adams County136
- Preble County135
- Ross County135
- Clark County134
- Fayette County134
- Delaware County133
- Fairfield County132
- Belmont County132
- Hocking County131
- Perry County129
- Meigs County129
- Jefferson County127
- Athens County126
- Morgan County126
- Scioto County125
- Miami County124
- Highland County123
- Vinton County119
- Champaign County118
- Cuyahoga County117
- Tuscarawas County117
- Union County116
- Guernsey County116
- Darke County114
- Gallia County114
- Lawrence County113
- Stark County111
48 more counties
- Holmes County110
- Coshocton County110
- Trumbull County109
- Columbiana County107
- Harrison County106
- Monroe County105
- Muskingum County105
- Wayne County104
- Noble County102
- Pike County102
- Ashtabula County100
- Jackson County100
- Lake County99
- Lorain County99
- Williams County99
- Geauga County98
- Summit County95
- Logan County95
- Shelby County95
- Carroll County95
- Ashland County94
- Medina County94
- Marion County92
- Richland County92
- Defiance County91
- Morrow County89
- Mahoning County88
- Portage County88
- Knox County86
- Hardin County86
- Fulton County85
- Crawford County80
- Paulding County78
- Erie County76
- Ottawa County76
- Seneca County75
- Mercer County74
- Allen County73
- Van Wert County73
- Lucas County73
- Auglaize County73
- Sandusky County70
- Henry County70
- Wyandot County69
- Putnam County68
- Hancock County67
- Huron County67
- Wood County66
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.