Alert archive / Ohio / 2021
Weather alerts in Ohio, April 2021
122 weather alerts in April 2021, 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 April 2021. Tap one for its archive.
- Alerts
- 122
- Warnings
- 21
- Watches
- 12
- Advisories
- 31
- Busiest day
- April 9, 202121 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 4:26 AM EDT | Special Weather Statement | CLE | Ashland, Huron, Lorain, Medina, Summit, Wayne | 64 min |
| Apr 1, 8:35 AM EDT | Special Weather Statement | ILN | Preble | 40 min |
| Apr 1, 9:17 AM EDT | Special Weather Statement | ILN | Butler | 28 min |
| Apr 1, 9:18 AM EDT | Special Weather Statement | CLE | Cuyahoga, Summit | 57 min |
| Apr 1, 10:00 AM EDT | Special Weather Statement | CLE | Cuyahoga, Summit | 90 min |
| Apr 1, 10:39 AM EDT | Winter Weather Advisory | CLE | Cuyahoga, Summit | 8 hr |
| Apr 1, 11:00 AM EDT | Freeze Warning | RLX | Athens, Gallia, Lawrence, Meigs, Washington | 48 hr |
| Apr 1, 2:44 PM EDT | Special Weather Statement | CLE | Cuyahoga, Geauga, Lake, Lorain | 61 min |
| Apr 1, 3:20 PM EDT | Special Weather Statement | CLE | Medina, Portage, Summit | 55 min |
| Apr 1, 3:32 PM EDT | Freeze Warning | ILN | Adams, Brown, Clermont, Hamilton, Scioto | 42 hr |
| Apr 1, 4:19 PM EDT | Special Weather Statement | CLE | Geauga, Mahoning, Portage, Stark, Summit, Trumbull and 1 more | 86 min |
| Apr 3, 5:42 PM EDT | Frost Advisory | RLX | Athens, Gallia, Lawrence, Meigs, Washington | 15 hr |
| Apr 5, 11:05 AM EDT | Special Weather Statement | IWX | Williams | 55 min |
| Apr 8, 4:24 PM EDT | Mesoscale Discussion | SPC | Brown, Butler, Clermont, Hamilton, Preble | 96 min |
| Apr 8, 4:43 PM EDT | Special Weather Statement | ILN | Brown | 47 min |
| Apr 8, 5:26 PM EDT | Special Weather Statement | ILN | Adams | 34 min |
| Apr 8, 5:28 PM EDT | Special Marine Warning | CLE | 62 min | |
| Apr 8, 5:41 PM EDT | Severe Thunderstorm Warning | ILN | Adams, Brown, Highland | 24 min |
| Apr 8, 5:44 PM EDT | Special Weather Statement | CLE | Ashtabula, Cuyahoga, Geauga, Lake, Mahoning, Portage and 3 more | 61 min |
| Apr 8, 5:49 PM EDT | Special Weather Statement | PBZ | Carroll, Columbiana, Jefferson | 41 min |
| Apr 8, 6:04 PM EDT | Special Weather Statement | ILN | Highland | 26 min |
| Apr 8, 7:52 PM EDT | Special Weather Statement | ILN | Preble | 23 min |
| Apr 9, 3:58 PM EDT | Special Weather Statement | ILN | Preble | 32 min |
| Apr 9, 4:07 PM EDT | Severe Thunderstorm Warning | ILN | Darke, Miami, Montgomery, Preble | 23 min |
| Apr 9, 4:25 PM EDT | Special Weather Statement | ILN | Butler, Montgomery | 35 min |
| Apr 9, 4:29 PM EDT | Special Weather Statement | ILN | Miami | 31 min |
| Apr 9, 4:34 PM EDT | Severe Thunderstorm Warning | ILN | Greene, Montgomery | 26 min |
| Apr 9, 4:43 PM EDT | Special Weather Statement | ILN | Champaign, Logan, Union | 32 min |
| Apr 9, 4:52 PM EDT | Special Weather Statement | ILN | Champaign, Clark | 23 min |
| Apr 9, 4:59 PM EDT | Special Weather Statement | ILN | Clark | 31 min |
| Apr 9, 5:15 PM EDT | Special Weather Statement | ILN | Champaign, Union | 30 min |
| Apr 9, 5:24 PM EDT | Special Weather Statement | ILN | Clark, Greene, Madison | 36 min |
| Apr 9, 5:43 PM EDT | Special Weather Statement | ILN | Delaware, Union | 32 min |
| Apr 9, 5:52 PM EDT | Special Weather Statement | ILN | Franklin, Madison | 38 min |
| Apr 9, 6:14 PM EDT | Special Weather Statement | ILN | Delaware, Union | 31 min |
| Apr 9, 6:23 PM EDT | Special Weather Statement | ILN | Franklin, Licking | 37 min |
| Apr 9, 6:45 PM EDT | Special Weather Statement | CLE | Richland | 60 min |
| Apr 9, 6:50 PM EDT | Special Weather Statement | ILN | Montgomery | 25 min |
| Apr 9, 6:59 PM EDT | Special Weather Statement | ILN | Licking | 31 min |
| Apr 9, 7:10 PM EDT | Special Weather Statement | RLX | Perry | 35 min |
| Apr 9, 7:11 PM EDT | Special Weather Statement | PBZ | Coshocton, Muskingum | 49 min |
| Apr 9, 7:14 PM EDT | Special Weather Statement | ILN | Miami | 31 min |
| Apr 9, 7:18 PM EDT | Special Weather Statement | CLE | Medina | 57 min |
| Apr 10, 4:27 PM EDT | Special Weather Statement | CLE | Wood | 48 min |
| Apr 10, 6:14 PM EDT | Special Weather Statement | CLE | Holmes, Knox | 61 min |
| Apr 10, 6:37 PM EDT | Special Weather Statement | ILN | Clermont | 38 min |
| Apr 10, 7:16 PM EDT | Special Weather Statement | ILN | Brown | 29 min |
| Apr 10, 8:28 PM EDT | Special Weather Statement | CLE | Geauga, Portage | 62 min |
| Apr 10, 9:12 PM EDT | Special Weather Statement | IWX | Paulding, Van Wert | 48 min |
| Apr 13, 3:40 AM EDT | Marine Dense Fog Advisory | CLE | 6 hr | |
| Apr 15, 3:49 PM EDT | Small Craft Advisory | CLE | 34 hr | |
| Apr 16, 3:39 PM EDT | Frost Advisory | ILN | Auglaize, Champaign, Clark, Darke, Delaware, Fairfield and 13 more | 17 hr |
| Apr 17, 3:16 PM EDT | Frost Advisory | ILN | Darke, Mercer, Preble | 18 hr |
| Apr 17, 3:52 PM EDT | Frost Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 17 hr |
| Apr 19, 3:49 AM EDT | Freeze Watch | ILN | Auglaize, Champaign, Darke, Hardin, Logan, Mercer and 4 more | 12 hr |
| Apr 19, 4:24 AM EDT | Freeze Watch | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 11 hr |
| Apr 19, 3:31 PM EDT | Freeze Watch | CLE | Hancock, Lucas, Marion, Wood, Wyandot | 12 hr |
| Apr 19, 3:40 PM EDT | Freeze Warning | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 64 hr |
| Apr 19, 3:52 PM EDT | Freeze Warning | ILN | Auglaize, Butler, Champaign, Clark, Clinton, Darke and 12 more | 42 hr |
| Apr 20, 3:27 AM EDT | Winter Weather Advisory | ILN | Auglaize, Champaign, Darke, Delaware, Hardin, Logan and 4 more | 24 hr |
| Apr 20, 3:30 AM EDT | Freeze Watch | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 24 hr |
| Apr 20, 3:47 AM EDT | Small Craft Advisory | CLE | 43 hr | |
| Apr 20, 3:49 AM EDT | Winter Weather Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 23 hr |
| Apr 20, 3:54 AM EDT | Winter Weather Advisory | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 14 more | 30 hr |
| Apr 20, 3:55 AM EDT | Freeze Watch | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 23 hr |
| Apr 20, 3:57 AM EDT | Freeze Warning | CLE | Hancock, Lucas, Marion, Wood, Wyandot | 30 hr |
| Apr 20, 7:01 AM EDT | Freeze Watch | PBZ | Belmont, Carroll, Coshocton, Guernsey, Harrison, Jefferson and 4 more | 19 hr |
| Apr 20, 3:53 PM EDT | Freeze Watch | CLE | Knox, Morrow | 18 hr |
| Apr 21, 2:04 AM EDT | Freeze Warning | PBZ | Belmont, Carroll, Coshocton, Guernsey, Harrison, Jefferson and 4 more | 32 hr |
| Apr 21, 3:10 AM EDT | Freeze Warning | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 31 hr |
| Apr 21, 3:54 AM EDT | Freeze Warning | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 30 hr |
| Apr 21, 10:03 AM EDT | Freeze Warning | CLE | Hancock, Knox, Lucas, Marion, Morrow, Wood and 1 more | 24 hr |
| Apr 21, 1:25 PM EDT | Freeze Watch | PBZ | Belmont, Carroll, Coshocton, Guernsey, Harrison, Jefferson and 4 more | 13 hr |
| Apr 21, 1:36 PM EDT | Freeze Watch | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 13 hr |
| Apr 21, 3:04 PM EDT | Freeze Watch | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 24 hr |
| Apr 21, 7:27 PM EDT | Special Weather Statement | ILN | Mercer | 48 min |
| Apr 21, 7:44 PM EDT | Special Weather Statement | ILN | Preble | 31 min |
| Apr 21, 8:17 PM EDT | Special Weather Statement | ILN | Butler, Hamilton, Montgomery, Preble | 43 min |
| Apr 21, 10:28 PM EDT | Special Weather Statement | CLE | Cuyahoga, Portage, Summit | 62 min |
| Apr 21, 10:55 PM EDT | Special Weather Statement | CLE | Cuyahoga, Portage, Summit | 80 min |
| Apr 21, 11:53 PM EDT | Special Weather Statement | CLE | Mahoning | 52 min |
| Apr 22, 12:19 AM EDT | Special Weather Statement | CLE | Cuyahoga, Geauga, Mahoning, Portage, Trumbull | 86 min |
| Apr 22, 2:18 AM EDT | Freeze Warning | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 31 hr |
| Apr 22, 2:39 AM EDT | Freeze Warning | PBZ | Belmont, Carroll, Coshocton, Guernsey, Harrison, Jefferson and 4 more | 30 hr |
| Apr 22, 3:33 AM EDT | Freeze Warning | ILN | Adams, Brown, Champaign, Clark, Clinton, Darke and 20 more | 29 hr |
| Apr 22, 3:35 AM EDT | Freeze Watch | CLE | Knox, Marion, Morrow, Wyandot | 12 hr |
| Apr 22, 3:49 AM EDT | Small Craft Advisory | CLE | 19 hr | |
| Apr 22, 3:12 PM EDT | Frost Advisory | ILN | Auglaize, Butler, Clermont, Hamilton, Hardin, Mercer | 18 hr |
| Apr 22, 3:12 PM EDT | Frost Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 18 hr |
| Apr 22, 3:24 PM EDT | Frost Advisory | CLE | Hancock, Lucas, Wood | 18 hr |
| Apr 22, 3:24 PM EDT | Freeze Warning | CLE | Knox, Marion, Morrow, Wyandot | 18 hr |
| Apr 23, 3:39 AM EDT | Small Craft Advisory | CLE | 16 hr | |
| Apr 24, 11:31 PM EDT | Dense Fog Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 6 hr |
| Apr 25, 3:18 AM EDT | Dense Fog Advisory | ILN | Auglaize, Butler, Champaign, Clark, Clermont, Clinton and 16 more | 6 hr |
| Apr 25, 4:03 AM EDT | Small Craft Advisory | CLE | 18 hr | |
| Apr 25, 2:20 PM EDT | Frost Advisory | RLX | Athens, Gallia, Jackson, Meigs, Morgan, Perry and 2 more | 19 hr |
| Apr 25, 3:14 PM EDT | Frost Advisory | ILN | Auglaize, Champaign, Delaware, Fairfield, Franklin, Hardin and 10 more | 18 hr |
| Apr 25, 4:33 PM EDT | Frost Advisory | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 15 hr |
| Apr 25, 5:34 PM EDT | Frost Advisory | CLE | Knox, Marion, Morrow, Wyandot | 15 hr |
| Apr 28, 1:06 PM EDT | Mesoscale Discussion | SPC | Ashtabula | 114 min |
| Apr 28, 5:07 PM EDT | Special Weather Statement | RLX | Perry | 23 min |
| Apr 28, 6:11 PM EDT | Special Weather Statement | PBZ | Jefferson | 34 min |
| Apr 28, 7:23 PM EDT | Areal Flood Advisory | ILN | Adams | 2 hr |
| Apr 28, 8:05 PM EDT | Special Weather Statement | PBZ | Tuscarawas | 40 min |
| Apr 28, 9:45 PM EDT | Special Weather Statement | RLX | Washington | 30 min |
| Apr 29, 9:38 AM EDT | Small Craft Advisory | CLE | 42 hr | |
| Apr 29, 10:41 AM EDT | Areal Flood Advisory | CLE | Cuyahoga, Lorain, Medina, Summit | 4 hr |
| Apr 29, 12:55 PM EDT | Areal Flood Advisory | ILN | Butler, Greene, Hamilton, Montgomery, Warren | 2 hr |
| Apr 29, 1:36 PM EDT | River Flood Warning | CLE | Hancock | 12 hr |
| Apr 29, 2:46 PM EDT | Freeze Watch | CLE | Ashland, Ashtabula, Geauga, Holmes, Knox, Mahoning and 9 more | 24 hr |
| Apr 29, 5:38 PM EDT | River Flood Warning | CLE | Lorain | 18 hr |
| Apr 30, 12:55 AM EDT | Special Weather Statement | ILN | Miami | 35 min |
| Apr 30, 1:27 AM EDT | Special Weather Statement | ILN | Greene | 33 min |
| Apr 30, 1:55 AM EDT | Special Weather Statement | ILN | Clinton, Greene | 35 min |
| Apr 30, 3:14 AM EDT | Frost Advisory | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more | 30 hr |
| Apr 30, 8:51 AM EDT | River Flood Warning | CLE | Trumbull | 14 hr |
| Apr 30, 12:59 PM EDT | Frost Advisory | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 20 hr |
| Apr 30, 1:04 PM EDT | Frost Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 20 hr |
| Apr 30, 2:11 PM EDT | Special Weather Statement | ILN | Fairfield | 34 min |
| Apr 30, 2:55 PM EDT | Frost Advisory | CLE | Crawford, Cuyahoga, Erie, Geauga, Hancock, Huron and 11 more | 17 hr |
| Apr 30, 2:55 PM EDT | Freeze Warning | CLE | Ashland, Ashtabula, Holmes, Mahoning, Medina, Portage and 4 more | 17 hr |
| Apr 30, 3:19 PM EDT | Special Weather Statement | RLX | Athens | 26 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 3 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 56 |
| Flooding | |
| River Flood Warning | 3 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 4 |
| Cold | |
| Freeze Warning | 14 |
| Freeze Watch | 12 |
| Frost Advisory | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Marine | |
| Special Marine Warning | 1 |
| Marine Dense Fog Advisory | 1 |
| Small Craft Advisory | 6 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Preble County16
- Union County15
- Miami County14
- Champaign County14
- Montgomery County13
- Mercer County13
- Summit County12
- Butler County12
- Darke County12
- Greene County12
- Logan County12
- Cuyahoga County11
- Clark County11
- Madison County11
- Delaware County11
- Auglaize County11
- Hardin County11
- Shelby County11
- Brown County10
- Hamilton County10
- Franklin County10
- Athens County9
- Washington County9
- Portage County9
- Adams County9
- Clermont County9
- Licking County9
- Marion County9
- Gallia County8
- Meigs County8
- Geauga County8
- Jefferson County8
- Perry County8
- Knox County8
- Fairfield County8
- Fayette County8
- Wyandot County8
- Clinton County8
- Warren County8
- Morrow County8
48 more counties
- Medina County7
- Lawrence County7
- Williams County7
- Highland County7
- Carroll County7
- Coshocton County7
- Muskingum County7
- Wood County7
- Paulding County7
- Van Wert County7
- Hocking County7
- Pickaway County7
- Ross County7
- Hancock County7
- Tuscarawas County7
- Lorain County6
- Scioto County6
- Mahoning County6
- Trumbull County6
- Allen County6
- Defiance County6
- Fulton County6
- Henry County6
- Putnam County6
- Lucas County6
- Pike County6
- Jackson County6
- Morgan County6
- Vinton County6
- Belmont County6
- Guernsey County6
- Harrison County6
- Monroe County6
- Noble County6
- Ashtabula County5
- Ashland County4
- Wayne County4
- Stark County4
- Richland County4
- Huron County3
- Lake County3
- Columbiana County3
- Holmes County3
- Crawford County2
- Erie County2
- Ottawa County2
- Sandusky County2
- Seneca County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.