Dense Fog Advisories in Texas, 2026

Dense Fog Advisories by county

Each county as a circle sized by its count in 2026. Tap one for its archive.

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Jan 5, 2:12 PM CST	Dense Fog Advisory	LCH	Jefferson, Orange	20 hr
Jan 5, 11:14 PM CST	Dense Fog Advisory	HGX	Brazoria, Chambers, Fort Bend, Galveston, Harris, Jackson and 3 more	11 hr
Jan 6, 4:14 AM CST	Dense Fog Advisory	CRP	Bee, Duval, Goliad, Jim Wells, La Salle, Live Oak and 3 more	6 hr
Jan 6, 4:17 AM CST	Dense Fog Advisory	EWX	Atascosa, DeWitt, Dimmit, Frio, Gonzales, Karnes and 3 more	6 hr
Jan 6, 10:43 AM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	23 hr
Jan 6, 11:15 PM CST	Dense Fog Advisory	SHV	Angelina, Nacogdoches, Panola, Sabine, San Augustine, Shelby	11 hr
Jan 7, 12:09 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Brazos, Chambers, Colorado, Fort Bend and 16 more	10 hr
Jan 7, 12:16 AM CST	Dense Fog Advisory	CRP	Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 7 more	10 hr
Jan 7, 2:47 AM CST	Dense Fog Advisory	EWX	Atascosa, Bastrop, Caldwell, DeWitt, Fayette, Gonzales and 5 more	8 hr
Jan 7, 11:15 AM CST	Dense Fog Advisory	LCH	Jefferson, Orange	21 hr
Jan 9, 8:33 AM CST	Dense Fog Advisory	SHV	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 14 more	2 hr
Jan 21, 11:24 PM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 10 more	10 hr
Jan 21, 11:52 PM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	9 hr
Jan 22, 12:31 AM CST	Dense Fog Advisory	CRP	Aransas, Bee, Calhoun, Goliad, Jim Wells, Kleberg and 5 more	8 hr
Jan 22, 7:45 AM CST	Dense Fog Advisory	EWX	Atascosa, DeWitt, Karnes, Lavaca	2 hr
Jan 22, 9:09 AM CST	Dense Fog Advisory	SHV	Bowie, Cass, Franklin, Morris, Red River, Titus	111 min
Jan 22, 9:12 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 10 more	48 min
Jan 23, 1:49 AM CST	Dense Fog Advisory	EWX	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 24 more	10 hr
Jan 23, 1:57 AM CST	Dense Fog Advisory	FWD	Bell, Bosque, Comanche, Coryell, Eastland, Erath and 6 more	8 hr
Jan 23, 10:21 AM CST	Dense Fog Advisory	MAF	Borden, Howard, Mitchell, Scurry	3 hr
Jan 23, 11:06 AM CST	Dense Fog Advisory	SJT	Coke, Concho, Irion, Runnels, Sterling, Tom Green	3 hr
Jan 26, 9:37 PM CST	Dense Fog Advisory	EPZ	El Paso, Hudspeth	9 hr
Feb 3, 6:26 AM CST	Dense Fog Advisory	EWX	Dimmit, Frio, Kinney, Maverick, Medina, Uvalde and 1 more	4 hr
Feb 8, 1:28 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Brazos, Burleson, Chambers, Colorado and 11 more	9 hr
Feb 8, 1:48 AM CST	Dense Fog Advisory	CRP	Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 6 more	7 hr
Feb 8, 3:02 AM CST	Dense Fog Advisory	BRO	Brooks, Hidalgo, Jim Hogg, Kenedy	6 hr
Feb 8, 11:44 AM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	21 hr
Feb 9, 3:42 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Chambers, Colorado, Fort Bend, Grimes and 9 more	5 hr
Feb 9, 11:47 AM CST	Dense Fog Advisory	LCH	Jefferson, Orange	22 hr
Feb 11, 8:15 PM CST	Dense Fog Advisory	LCH	Jefferson, Orange	14 hr
Feb 12, 2:01 AM CST	Dense Fog Advisory	HGX	Brazoria, Chambers, Fort Bend, Galveston, Harris, Jackson and 2 more	7 hr
Feb 12, 6:00 AM CST	Dense Fog Advisory	CRP	Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 7 more	3 hr
Feb 12, 8:57 PM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	15 hr
Feb 12, 9:13 PM CST	Dense Fog Advisory	HGX	Brazoria, Chambers, Fort Bend, Galveston, Harris, Jackson and 3 more	12 hr
Feb 13, 1:41 AM CST	Dense Fog Advisory	CRP	Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 7 more	7 hr
Feb 13, 11:56 AM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	18 hr
Feb 13, 6:16 PM CST	Dense Fog Advisory	HGX	Chambers, Galveston, Harris, Liberty	11 hr
Feb 15, 11:39 PM CST	Dense Fog Advisory	SHV	Bowie, Camp, Cass, Franklin, Gregg, Harrison and 9 more	11 hr
Feb 16, 6:58 AM CST	Dense Fog Advisory	FWD	Bell, Bosque, Collin, Coryell, Dallas, Delta and 21 more	3 hr
Feb 17, 3:22 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 8 more	6 hr
Feb 19, 11:57 AM CST	Dense Fog Advisory	LCH	Jefferson, Orange	22 hr
Feb 19, 10:26 PM CST	Dense Fog Advisory	CRP	Aransas, Calhoun, Goliad, Refugio, Victoria	10 hr
Feb 20, 1:53 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 8 more	7 hr
Feb 20, 2:02 AM CST	Dense Fog Advisory	EWX	DeWitt, Fayette, Gonzales, Karnes, Lavaca, Wilson	7 hr
Feb 20, 10:54 AM CST	Dense Fog Advisory	HGX	Brazoria, Chambers, Galveston, Harris, Jackson, Matagorda	22 hr
Feb 20, 11:26 AM CST	Dense Fog Advisory	LCH	Jefferson, Orange	23 hr
Feb 21, 12:44 AM CST	Dense Fog Advisory	CRP	Aransas, Calhoun, Goliad, Refugio, Victoria	8 hr
Feb 27, 3:16 AM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	5 hr
Feb 27, 5:17 AM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 10 more	6 hr
Feb 27, 6:57 PM CST	Dense Fog Advisory	CRP	Aransas, Bee, Calhoun, Goliad, Jim Wells, Kleberg and 5 more	14 hr
Feb 27, 8:11 PM CST	Dense Fog Advisory	BRO	Brooks, Cameron, Hidalgo, Kenedy, Willacy	13 hr
Feb 27, 9:52 PM CST	Dense Fog Advisory	HGX	Austin, Brazoria, Brazos, Burleson, Chambers, Colorado and 10 more	12 hr
Feb 28, 10:14 PM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	11 hr
Mar 1, 12:36 AM CST	Dense Fog Advisory	HGX	Brazoria, Chambers, Galveston, Harris, Jackson, Liberty and 1 more	7 hr
Mar 3, 3:20 AM CST	Dense Fog Advisory	HGX	Brazoria, Chambers, Galveston, Harris	5 hr
Mar 4, 5:29 AM CST	Dense Fog Advisory	HGX	Brazoria, Galveston	5 hr
Mar 4, 10:22 PM CST	Dense Fog Advisory	LCH	Jefferson, Orange	12 hr
Mar 4, 10:27 PM CST	Dense Fog Advisory	HGX	Chambers, Galveston, Harris	10 hr
Mar 4, 10:37 PM CST	Dense Fog Advisory	AMA	Armstrong, Carson, Collingsworth, Donley, Gray, Hemphill and 5 more	12 hr
Mar 9, 4:16 AM CDT	Dense Fog Advisory	EWX	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 26 more	7 hr
Mar 20, 5:37 AM CDT	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	3 hr
Mar 22, 5:49 AM CDT	Dense Fog Advisory	LCH	Jefferson, Orange	3 hr
Mar 22, 12:23 PM CDT	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange	21 hr
Mar 23, 12:42 PM CDT	Dense Fog Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange	20 hr
Mar 24, 10:14 PM CDT	Dense Fog Advisory	LCH	Jefferson, Orange	12 hr
Mar 25, 3:01 PM CDT	Dense Fog Advisory	LCH	Jefferson, Orange	19 hr
Mar 26, 2:22 PM CDT	Dense Fog Advisory	LCH	Jefferson, Orange	19 hr
Apr 22, 4:03 AM CDT	Dense Fog Advisory	HGX	Austin, Fort Bend, Harris, Liberty, Montgomery, Waller and 1 more	5 hr
Apr 22, 6:02 AM CDT	Dense Fog Advisory	EWX	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 24 more	4 hr
May 9, 4:38 AM CDT	Dense Fog Advisory	SJT	Crockett, Kimble, Mason, Menard, Schleicher, Sutton	5 hr
May 21, 6:59 AM CDT	Dense Fog Advisory	AMA	Armstrong, Carson, Deaf Smith, Oldham, Potter, Randall	3 hr
May 27, 4:05 AM CDT	Dense Fog Advisory	SJT	Coke, Concho, Crockett, Fisher, Irion, McCulloch and 7 more	6 hr
May 28, 4:41 AM CDT	Dense Fog Advisory	AMA	Armstrong, Carson, Collingsworth, Deaf Smith, Donley, Gray and 7 more	3 hr
Jun 7, 2:27 AM CDT	Dense Fog Advisory	AMA	Carson, Gray, Hansford, Hemphill, Hutchinson, Lipscomb and 5 more	7 hr
Jun 16, 3:52 AM CDT	Dense Fog Advisory	FWD	Bell, Bosque, Comanche, Coryell, Erath, Falls and 8 more	5 hr
Sep 28, 6:11 AM CDT	Dense Fog Advisory	AMA	Carson, Dallam, Deaf Smith, Gray, Hansford, Hartley and 10 more	5 hr

By county

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

141 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 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.