Weather alerts in Ohio, 2009
1,383 weather alerts in 2009, 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 2009. Tap one for its archive.
- Alerts
- 1,383
- Warnings
- 725
- Watches
- 123
- Advisories
- 399
- Busiest month
- June344 alerts
- Busiest day
- February 11, 200968 alerts
Over time
By month
The alerts
1,383 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 County129
- Brown County125
- Adams County124
- Hamilton County121
- Scioto County120
- Warren County119
- Defiance County117
- Clinton County117
- Highland County113
- Greene County110
- Montgomery County110
- Butler County109
- Fairfield County109
- Pickaway County107
- Putnam County106
- Williams County105
- Preble County105
- Ross County105
- Paulding County104
- Darke County104
- Fayette County104
- Licking County103
- Franklin County103
- Van Wert County102
- Clark County101
- Allen County100
- Fulton County100
- Miami County100
- Pike County100
- Lawrence County99
- Henry County96
- Gallia County95
- Hocking County94
- Madison County91
- Shelby County88
- Mercer County88
- Belmont County88
- Auglaize County87
- Wood County86
- Delaware County85
48 more counties
- Logan County85
- Champaign County85
- Wayne County84
- Meigs County84
- Portage County83
- Ashtabula County82
- Marion County82
- Wyandot County81
- Union County81
- Athens County81
- Harrison County81
- Geauga County80
- Sandusky County80
- Guernsey County80
- Lucas County79
- Stark County79
- Summit County79
- Hardin County79
- Crawford County78
- Vinton County78
- Huron County77
- Jackson County77
- Jefferson County77
- Lorain County76
- Medina County76
- Monroe County76
- Cuyahoga County75
- Holmes County75
- Morrow County75
- Seneca County75
- Trumbull County75
- Tuscarawas County75
- Ashland County74
- Hancock County74
- Lake County74
- Mahoning County74
- Richland County74
- Noble County74
- Erie County73
- Washington County72
- Carroll County72
- Morgan County71
- Columbiana County71
- Knox County70
- Muskingum County70
- Perry County69
- Coshocton County69
- Ottawa County66
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.