Alert archive / Ohio / Dense Fog Advisories / 2021
Dense Fog Advisories in Ohio, March 2021
2 dense fog advisories in March 2021. 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 March 2021. Tap one for its archive.
- Dense Fog Advisories
- 2
- Busiest day
- March 17, 20212 dense fog advisories
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 |
|---|---|---|---|---|
| Mar 17, 7:24 AM EDT | Dense Fog Advisory | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 20 more | 4 hr |
| Mar 17, 7:26 AM EDT | Dense Fog Advisory | CLE | Ashland, Crawford, Cuyahoga, Erie, Hancock, Huron and 9 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County1
- Auglaize County1
- Brown County1
- Butler County1
- Champaign County1
- Clark County1
- Clermont County1
- Clinton County1
- Darke County1
- Delaware County1
- Fayette County1
- Franklin County1
- Greene County1
- Hamilton County1
- Hardin County1
- Highland County1
- Licking County1
- Logan County1
- Madison County1
- Mercer County1
- Miami County1
- Montgomery County1
- Preble County1
- Shelby County1
- Union County1
- Warren County1
- Ashland County1
- Crawford County1
- Cuyahoga County1
- Erie County1
- Hancock County1
- Huron County1
- Knox County1
- Lorain County1
- Marion County1
- Morrow County1
- Richland County1
- Sandusky County1
- Seneca County1
- Wood County1
1 more counties
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. Warning verification from the Mesonet's Cow. Rebuilt daily.