Alert archive / Ohio / Dense Fog Advisories

Dense Fog Advisories in Ohio, 2024

43 dense fog advisories in 2024. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of dense fog advisories reaches back to 2005.

Dense Fog Advisories by county

Each county as a circle sized by its count in 2024. Tap one for its archive.

Dense Fog Advisories: 43
Busiest month: January13 dense fog advisories
Busiest day: February 23, 20245 dense fog advisories

Over time

By month

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
Jan 6, 9:35 PM EST	Dense Fog Advisory	PBZ	Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more	6 hr
Jan 23, 2:13 PM EST	Dense Fog Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	56 hr
Jan 23, 4:56 PM EST	Dense Fog Advisory	ILN	Auglaize, Butler, Champaign, Clark, Clinton, Darke and 14 more	15 hr
Jan 23, 9:57 PM EST	Dense Fog Advisory	CLE	Ashland, Ashtabula, Crawford, Geauga, Hancock, Holmes and 18 more	13 hr
Jan 24, 3:19 AM EST	Dense Fog Advisory	PBZ	Carroll, Columbiana, Coshocton, Harrison, Jefferson, Tuscarawas	8 hr
Jan 24, 11:03 AM EST	Dense Fog Advisory	CLE	Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more	35 hr
Jan 24, 2:24 PM EST	Dense Fog Advisory	ILN	Adams, Auglaize, Brown, Butler, Champaign, Clark and 20 more	23 hr
Jan 24, 8:07 PM EST	Dense Fog Advisory	PBZ	Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more	25 hr
Jan 26, 2:00 PM EST	Dense Fog Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	23 hr
Jan 26, 2:01 PM EST	Dense Fog Advisory	CLE	Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 16 more	21 hr
Jan 26, 3:31 PM EST	Dense Fog Advisory	ILN	Auglaize, Darke, Hardin, Logan, Mercer, Shelby	19 hr
Jan 30, 9:32 PM EST	Dense Fog Advisory	IWX	Defiance, Fulton, Henry, Paulding, Putnam, Van Wert and 1 more	9 hr
Jan 31, 2:00 AM EST	Dense Fog Advisory	CLE	Ashland, Crawford, Hancock, Holmes, Knox, Lucas and 9 more	7 hr
Feb 22, 7:08 PM EST	Dense Fog Advisory	CLE	Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more	14 hr
Feb 22, 7:41 PM EST	Dense Fog Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	8 hr
Feb 22, 7:58 PM EST	Dense Fog Advisory	ILN	Auglaize, Butler, Champaign, Clark, Darke, Delaware and 12 more	13 hr
Feb 22, 10:34 PM EST	Dense Fog Advisory	PBZ	Carroll, Columbiana, Coshocton, Guernsey, Harrison, Jefferson and 2 more	9 hr
Feb 23, 4:02 AM EST	Dense Fog Advisory	IWX	Allen, Fulton, Henry, Putnam	5 hr
Mar 2, 8:05 AM EST	Dense Fog Advisory	ILN	Adams, Brown, Butler, Champaign, Clark, Clermont and 19 more	119 min
Mar 3, 3:19 AM EST	Dense Fog Advisory	ILN	Butler, Hamilton, Preble	7 hr
Mar 15, 2:20 AM EDT	Dense Fog Advisory	CLE	Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina and 3 more	9 hr
May 1, 3:43 AM EDT	Dense Fog Advisory	RLX	Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more	6 hr
May 17, 9:56 PM EDT	Dense Fog Advisory	CLE	Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more	11 hr
May 18, 1:40 AM EDT	Dense Fog Advisory	ILN	Adams, Brown, Butler, Champaign, Clark, Clermont and 24 more	8 hr
May 18, 4:58 AM EDT	Dense Fog Advisory	IWX	Defiance, Fulton, Henry, Williams	5 hr
May 26, 12:00 AM EDT	Dense Fog Advisory	PBZ	Columbiana	8 hr
May 26, 2:05 AM EDT	Dense Fog Advisory	CLE	Ashtabula, Cuyahoga, Geauga, Mahoning, Portage, Summit and 1 more	7 hr
Jun 3, 1:02 AM EDT	Dense Fog Advisory	ILN	Adams, Auglaize, Brown, Butler, Champaign, Clark and 26 more	8 hr
Jul 11, 6:07 AM EDT	Dense Fog Advisory	IWX	Defiance, Paulding, Williams	3 hr
Aug 4, 6:23 AM EDT	Dense Fog Advisory	PBZ	Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more	3 hr
Sep 18, 5:35 AM EDT	Dense Fog Advisory	IWX	Defiance, Fulton, Henry, Paulding, Putnam, Van Wert and 1 more	3 hr
Sep 20, 11:27 PM EDT	Dense Fog Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	11 hr
Sep 22, 2:43 AM EDT	Dense Fog Advisory	PBZ	Monroe	7 hr
Sep 22, 2:54 AM EDT	Dense Fog Advisory	RLX	Washington	7 hr
Oct 3, 3:01 AM EDT	Dense Fog Advisory	RLX	Gallia, Lawrence, Meigs	7 hr
Oct 3, 3:08 AM EDT	Dense Fog Advisory	ILN	Adams, Pike, Ross, Scioto	7 hr
Nov 18, 5:28 AM EST	Dense Fog Advisory	IWX	Fulton, Williams	5 hr
Nov 19, 7:17 PM EST	Dense Fog Advisory	ILN	Adams, Brown, Butler, Champaign, Clark, Clermont and 20 more	14 hr
Nov 19, 10:36 PM EST	Dense Fog Advisory	CLE	Ashland, Crawford, Erie, Hancock, Holmes, Huron and 16 more	11 hr
Dec 10, 7:17 AM EST	Dense Fog Advisory	ILN	Auglaize, Champaign, Darke, Hardin, Logan, Mercer and 4 more	3 hr
Dec 10, 4:00 PM EST	Dense Fog Advisory	CLE	Ashtabula	14 hr
Dec 15, 9:09 PM EST	Dense Fog Advisory	IWX	Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more	7 hr
Dec 15, 10:54 PM EST	Dense Fog Advisory	CLE	Ashland, Ashtabula, Crawford, Geauga, Holmes, Knox and 10 more	11 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

48 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2023 2025

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. Warning verification from the Mesonet's Cow. Rebuilt daily.