Alert archive / Florida / Dense Fog Advisories
Dense Fog Advisories in Florida, 2026
109 dense fog advisories in 2026. 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 2026. Tap one for its archive.
- Dense Fog Advisories
- 109
- Busiest month
- March36 dense fog advisories
- Busiest day
- January 7, 20266 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 4, 3:15 AM EST | Dense Fog Advisory | TBW | Citrus, Hernando, Hillsborough, Levy, Pasco, Pinellas and 2 more | 5 hr |
| Jan 5, 1:59 AM EST | Dense Fog Advisory | MLB | Brevard, Indian River, Lake, Martin, Okeechobee, Orange and 4 more | 8 hr |
| Jan 5, 3:55 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Palm Beach | 6 hr |
| Jan 5, 6:48 AM EST | Dense Fog Advisory | TBW | Charlotte, DeSoto, Hardee, Highlands, Hillsborough, Lee and 3 more | 5 hr |
| Jan 5, 7:23 AM EST | Dense Fog Advisory | JAX | Alachua, Clay, Flagler, Marion, Putnam, Saint Johns | 97 min |
| Jan 6, 12:08 AM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 10 hr |
| Jan 6, 12:45 AM EST | Dense Fog Advisory | JAX | Clay, Columbia, Duval, Flagler, Hamilton, Marion and 3 more | 8 hr |
| Jan 6, 2:21 AM EST | Dense Fog Advisory | MLB | Brevard, Indian River, Lake, Martin, Okeechobee, Orange and 4 more | 7 hr |
| Jan 6, 3:53 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Palm Beach | 5 hr |
| Jan 7, 2:35 AM EST | Dense Fog Advisory | TBW | Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 9 more | 8 hr |
| Jan 7, 3:21 AM EST | Dense Fog Advisory | MLB | Lake, Orange, Osceola, Seminole | 6 hr |
| Jan 7, 3:29 AM EST | Dense Fog Advisory | JAX | Marion | 6 hr |
| Jan 7, 11:50 AM EST | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 9 more | 23 hr |
| Jan 7, 11:58 AM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 23 hr |
| Jan 7, 12:55 PM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 21 hr |
| Jan 8, 1:05 AM EST | Dense Fog Advisory | MLB | Lake, Orange, Osceola, Seminole, Volusia | 9 hr |
| Jan 8, 1:08 AM EST | Dense Fog Advisory | TBW | Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 9 more | 10 hr |
| Jan 8, 1:11 PM EST | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Duval, Flagler and 4 more | 22 hr |
| Jan 8, 11:44 PM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 9 more | 10 hr |
| Jan 10, 4:16 AM EST | Dense Fog Advisory | TAE | Bay, Dixie, Franklin, Gulf, Jefferson, Madison and 2 more | 7 hr |
| Jan 10, 9:00 AM EST | Dense Fog Advisory | JAX | Flagler, Putnam | 2 hr |
| Jan 11, 3:13 AM EST | Dense Fog Advisory | JAX | Alachua, Bradford, Clay, Columbia, Gilchrist, Marion and 3 more | 6 hr |
| Jan 11, 3:27 AM EST | Dense Fog Advisory | TBW | Citrus, Hernando, Levy, Pasco, Pinellas | 6 hr |
| Jan 14, 5:03 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Hendry, Miami-Dade, Palm Beach | 4 hr |
| Jan 23, 6:15 AM EST | Dense Fog Advisory | MFL | Collier, Glades, Hendry | 4 hr |
| Jan 24, 4:16 AM EST | Dense Fog Advisory | MLB | Brevard, Indian River, Lake, Martin, Okeechobee, Orange and 4 more | 6 hr |
| Jan 24, 4:31 AM EST | Dense Fog Advisory | MFL | Glades, Hendry, Palm Beach | 4 hr |
| Jan 25, 12:29 AM EST | Dense Fog Advisory | MLB | Brevard, Lake, Orange, Seminole, Volusia | 10 hr |
| Jan 25, 10:51 AM EST | Dense Fog Advisory | TAE | Gadsden, Jefferson, Leon, Wakulla | 2 hr |
| Feb 9, 12:41 PM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 22 hr |
| Feb 9, 9:35 PM EST | Dense Fog Advisory | TAE | Bay, Dixie, Holmes, Jackson, Jefferson, Lafayette and 4 more | 12 hr |
| Feb 10, 12:08 PM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 18 hr |
| Feb 11, 7:27 PM EST | Dense Fog Advisory | TAE | Dixie, Franklin, Gulf, Jefferson, Liberty, Taylor and 1 more | 12 hr |
| Feb 12, 2:46 AM EST | Dense Fog Advisory | TBW | Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 9 more | 7 hr |
| Feb 12, 5:01 AM EST | Dense Fog Advisory | MLB | Lake, Okeechobee, Orange, Osceola, Seminole, Volusia | 5 hr |
| Feb 12, 6:03 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Palm Beach | 3 hr |
| Feb 12, 5:59 PM EST | Dense Fog Advisory | TBW | Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 6 more | 16 hr |
| Feb 12, 11:16 PM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Palm Beach | 8 hr |
| Feb 13, 12:25 AM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 8 hr |
| Feb 13, 4:09 AM EST | Dense Fog Advisory | TAE | Bay, Dixie, Franklin, Gulf, Liberty | 6 hr |
| Feb 13, 7:08 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Palm Beach | 112 min |
| Feb 13, 7:07 PM EST | Dense Fog Advisory | TBW | Charlotte, Lee | 6 hr |
| Feb 13, 7:08 PM EST | Dense Fog Advisory | MFL | Collier | 7 hr |
| Feb 18, 7:28 AM EST | Dense Fog Advisory | TAE | Bay, Holmes, Jackson, Walton, Washington | 5 hr |
| Feb 18, 8:09 PM EST | Dense Fog Advisory | TAE | Bay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more | 16 hr |
| Feb 19, 8:36 PM EST | Dense Fog Advisory | TAE | Bay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more | 14 hr |
| Feb 20, 10:58 PM EST | Dense Fog Advisory | TAE | Bay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more | 11 hr |
| Feb 22, 4:07 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Monroe | 5 hr |
| Feb 27, 12:42 AM EST | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Palm Beach | 8 hr |
| Feb 27, 4:02 AM EST | Dense Fog Advisory | MLB | Brevard, Indian River, Martin, Okeechobee, Osceola, Saint Lucie | 5 hr |
| Feb 27, 10:56 PM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 12 hr |
| Feb 27, 11:02 PM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 11 hr |
| Feb 28, 10:28 PM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 12 hr |
| Mar 1, 1:11 AM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more | 9 hr |
| Mar 1, 1:13 AM EST | Dense Fog Advisory | JAX | Baker, Columbia, Duval, Gilchrist, Hamilton, Nassau and 2 more | 9 hr |
| Mar 1, 7:36 AM EST | Dense Fog Advisory | KEY | Monroe | 2 hr |
| Mar 1, 7:54 PM EST | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 6 more | 13 hr |
| Mar 2, 12:30 AM EST | Dense Fog Advisory | MLB | Lake, Volusia | 6 hr |
| Mar 2, 6:32 PM EST | Dense Fog Advisory | JAX | Duval, Nassau, Saint Johns | 16 hr |
| Mar 3, 10:15 PM EST | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 9 more | 12 hr |
| Mar 4, 2:40 AM EST | Dense Fog Advisory | TAE | Dixie, Jefferson, Lafayette, Madison, Taylor | 8 hr |
| Mar 4, 5:12 AM EST | Dense Fog Advisory | MLB | Lake, Orange, Seminole, Volusia | 4 hr |
| Mar 4, 4:50 PM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Gulf, Holmes, Walton, Washington | 14 hr |
| Mar 5, 3:50 AM EST | Dense Fog Advisory | JAX | Baker, Columbia, Duval, Hamilton, Nassau, Suwannee | 5 hr |
| Mar 5, 4:33 AM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 5 hr |
| Mar 5, 9:41 PM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Gadsden, Gulf, Holmes, Jackson and 4 more | 11 hr |
| Mar 6, 2:51 AM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 7 hr |
| Mar 6, 3:33 AM EST | Dense Fog Advisory | JAX | Duval, Flagler, Nassau, Saint Johns | 5 hr |
| Mar 6, 12:27 PM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Gulf, Holmes, Jackson, Liberty and 2 more | 20 hr |
| Mar 6, 1:09 PM EST | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 20 hr |
| Mar 7, 4:51 AM EST | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 8 more | 4 hr |
| Mar 8, 12:12 AM EST | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 5 more | 8 hr |
| Mar 8, 7:16 AM EDT | Dense Fog Advisory | MLB | Orange, Osceola, Seminole | 3 hr |
| Mar 8, 1:23 PM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 21 hr |
| Mar 9, 2:09 AM EDT | Dense Fog Advisory | TAE | Calhoun, Franklin, Gadsden, Gulf, Jefferson, Leon and 2 more | 8 hr |
| Mar 9, 7:14 AM EDT | Dense Fog Advisory | MFL | Broward, Miami-Dade | 106 min |
| Mar 10, 7:28 AM EDT | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Palm Beach | 92 min |
| Mar 10, 8:07 AM EDT | Dense Fog Advisory | TAE | Bay, Gulf, Walton | 3 hr |
| Mar 11, 2:15 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 7 more | 9 hr |
| Mar 11, 5:28 AM EDT | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Palm Beach | 4 hr |
| Mar 11, 6:59 AM EDT | Dense Fog Advisory | MLB | Brevard, Indian River | 2 hr |
| Mar 14, 1:16 AM EDT | Dense Fog Advisory | MFL | Broward, Collier, Glades, Hendry, Palm Beach | 9 hr |
| Mar 22, 5:35 AM EDT | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 8 more | 4 hr |
| Mar 22, 6:04 AM EDT | Dense Fog Advisory | TAE | Calhoun, Dixie, Gadsden, Holmes, Jackson, Jefferson and 8 more | 4 hr |
| Mar 23, 7:19 AM EDT | Dense Fog Advisory | TAE | Dixie, Jefferson, Lafayette, Leon, Madison, Taylor | 101 min |
| Mar 26, 4:01 AM EDT | Dense Fog Advisory | JAX | Alachua, Baker, Bradford, Clay, Columbia, Duval and 7 more | 6 hr |
| Mar 26, 5:04 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 5 hr |
| Mar 26, 7:48 AM EDT | Dense Fog Advisory | MLB | Lake | 2 hr |
| Apr 1, 2:47 AM EDT | Dense Fog Advisory | TAE | Bay, Holmes, Jackson, Walton, Washington | 6 hr |
| Apr 5, 5:08 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Holmes, Jackson, Walton, Washington | 5 hr |
| Apr 14, 3:14 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 7 hr |
| Apr 15, 2:48 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 7 hr |
| Apr 15, 2:50 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Gulf, Holmes, Jackson, Walton and 1 more | 7 hr |
| Apr 15, 2:09 PM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 18 hr |
| Apr 15, 2:10 PM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 3 more | 20 hr |
| Apr 25, 3:52 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 10 more | 5 hr |
| Apr 25, 4:35 AM EDT | Dense Fog Advisory | JAX | Hamilton, Suwannee | 5 hr |
| Apr 26, 3:58 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 4 more | 5 hr |
| May 6, 3:12 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 6 more | 6 hr |
| May 8, 5:35 AM EDT | Dense Fog Advisory | TBW | Charlotte, DeSoto, Hardee, Lee | 3 hr |
| May 8, 7:06 AM EDT | Dense Fog Advisory | MFL | Collier, Glades, Hendry | 114 min |
| May 10, 2:13 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 8 hr |
| May 10, 3:13 AM EDT | Dense Fog Advisory | TAE | Holmes, Walton | 7 hr |
| May 14, 6:18 AM EDT | Dense Fog Advisory | JAX | Baker, Bradford, Clay, Duval, Nassau, Union | 3 hr |
| May 21, 5:59 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 3 more | 4 hr |
| May 22, 8:20 AM EDT | Dense Fog Advisory | TAE | Bay, Calhoun, Holmes, Jackson, Washington | 100 min |
| Sep 5, 2:08 AM EDT | Dense Fog Advisory | TAE | Calhoun, Gadsden, Holmes, Jackson, Leon, Liberty and 2 more | 7 hr |
| Sep 5, 3:32 AM EDT | Dense Fog Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 5 hr |
| Sep 21, 4:27 AM EDT | Dense Fog Advisory | JAX | Baker, Columbia, Gilchrist, Hamilton, Suwannee, Union | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bay County26
- Gulf County23
- Walton County23
- Holmes County21
- Jackson County21
- Washington County21
- Calhoun County20
- Jefferson County19
- Franklin County18
- Liberty County18
- Escambia County17
- Okaloosa County17
- Santa Rosa County17
- Taylor County16
- Wakulla County16
- Collier County14
- Hendry County14
- Gadsden County14
- Leon County14
- Glades County13
- Duval County13
- Dixie County13
- Broward County12
- Palm Beach County11
- Clay County11
- Putnam County11
- Columbia County11
- Suwannee County11
- Baker County11
- Nassau County11
- Union County11
- Madison County11
- Lake County10
- Marion County10
- Saint Johns County10
- Hamilton County10
- Orange County9
- Seminole County9
- Alachua County9
- Flagler County9
27 more counties
- Bradford County9
- Osceola County8
- Volusia County8
- Gilchrist County8
- Lafayette County8
- Miami-Dade County8
- Charlotte County7
- Lee County7
- Citrus County6
- Hernando County6
- Hillsborough County6
- Pasco County6
- Pinellas County6
- Brevard County6
- DeSoto County6
- Hardee County6
- Levy County5
- Polk County5
- Indian River County5
- Okeechobee County5
- Highlands County5
- Manatee County5
- Sarasota County5
- Sumter County4
- Martin County4
- Saint Lucie County4
- Monroe County2
The busiest days
Days with the most alerts issued, by UTC date.
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.