Dense Fog Advisories in Florida
2,446 dense fog advisories since 1986. 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 since 1986. Tap one for its archive.
- Dense Fog Advisories
- 2,446
- Busiest year
- 2025176 dense fog advisories
- Average year
- 111over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Walton County399
- Bay County393
- Washington County383
- Wakulla County382
- Holmes County377
- Franklin County376
- Calhoun County374
- Gulf County373
- Jefferson County373
- Gadsden County372
- Jackson County372
- Leon County369
- Taylor County357
- Madison County334
- Suwannee County323
- Baker County318
- Nassau County314
- Bradford County313
- Lafayette County308
- Union County306
- Dixie County304
- Gilchrist County301
- Hendry County296
- Collier County292
- Glades County284
- Escambia County280
- Santa Rosa County278
- Okaloosa County275
- Palm Beach County252
- Broward County234
- Flagler County213
- Sumter County189
- Polk County187
- Miami-Dade County176
- Duval County170
- Hardee County163
- DeSoto County161
- Highlands County155
- Monroe County152
- Pinellas County142
27 more counties
- Lake County137
- Alachua County134
- Hernando County132
- Volusia County130
- Levy County130
- Pasco County128
- Citrus County127
- Hillsborough County122
- Marion County121
- Orange County116
- Seminole County113
- Osceola County112
- Charlotte County109
- Manatee County109
- Clay County106
- Sarasota County105
- Putnam County103
- Lee County94
- Okeechobee County88
- Columbia County47
- Hamilton County45
- Liberty County45
- Brevard County36
- Indian River County25
- Saint Lucie County21
- Martin County20
- Saint Johns County14
The latest dense fog advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 4:27 AM EDT | Dense Fog Advisory | JAX | Baker, Columbia, Gilchrist, Hamilton, Suwannee, Union | 4 hr |
| Sep 5, 3:32 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 5 hr |
| Sep 5, 2:08 AM EDT | Dense Fog Advisory | TAE | Calhoun, Gadsden, Holmes, Jackson, Leon, Liberty and 2 more | 7 hr |
| May 22, 8:20 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Holmes, Jackson, Washington | 100 min |
| May 21, 5:59 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 3 more | 4 hr |
| May 14, 6:18 AM EDT | Dense Fog Advisory | JAX | Baker, Bradford, Clay, Duval, Nassau, Union | 3 hr |
| May 10, 3:13 AM EDT | Dense Fog Advisory | TAE | Holmes, Walton | 7 hr |
| May 10, 2:13 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 8 hr |
| May 8, 7:06 AM EDT | Dense Fog Advisory | MFL | Collier, Glades, Hendry | 114 min |
| May 8, 5:35 AM EDT | Dense Fog Advisory | TBW | Charlotte, DeSoto, Hardee, Lee | 3 hr |
| May 6, 3:12 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 6 more | 6 hr |
| Apr 26, 3:58 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 4 more | 5 hr |
Nearby
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.