Weather alerts in Ohio, 2017
3,344 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 3,344
- Warnings
- 1,115
- Watches
- 96
- Advisories
- 641
- Busiest month
- July642 alerts
- Busiest day
- March 1, 2017170 alerts
Over time
By month
The alerts
3,344 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.
- Clermont County189
- Hamilton County184
- Brown County176
- Warren County171
- Franklin County170
- Licking County166
- Adams County165
- Butler County164
- Highland County163
- Miami County162
- Clinton County161
- Darke County161
- Preble County161
- Fairfield County156
- Madison County155
- Pickaway County155
- Ashtabula County153
- Scioto County152
- Montgomery County151
- Shelby County151
- Mercer County150
- Hocking County150
- Ross County149
- Greene County148
- Auglaize County146
- Cuyahoga County146
- Champaign County144
- Clark County141
- Fayette County139
- Lake County136
- Defiance County136
- Putnam County136
- Delaware County135
- Athens County135
- Union County133
- Washington County130
- Pike County129
- Logan County129
- Columbiana County129
- Paulding County128
48 more counties
- Van Wert County128
- Geauga County127
- Hardin County127
- Lorain County125
- Hancock County124
- Morgan County123
- Vinton County123
- Perry County121
- Seneca County121
- Williams County121
- Richland County119
- Trumbull County119
- Summit County118
- Meigs County118
- Portage County117
- Wood County115
- Carroll County114
- Stark County113
- Crawford County113
- Wyandot County113
- Allen County113
- Henry County113
- Gallia County112
- Sandusky County111
- Belmont County110
- Tuscarawas County110
- Jackson County109
- Lawrence County106
- Erie County106
- Huron County106
- Ashland County105
- Marion County105
- Jefferson County103
- Medina County101
- Morrow County101
- Harrison County101
- Wayne County100
- Guernsey County100
- Coshocton County100
- Mahoning County99
- Fulton County99
- Ottawa County97
- Holmes County95
- Knox County95
- Lucas County94
- Muskingum County93
- Noble County86
- Monroe County82
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.