National Weather ServiceTexasDense Fog AdvisoryArchive to October 1, 2026
Dense Fog Advisories in Texas
The National Weather Service issued 220 dense fog advisories for Texas in 2025 and 183 a year on average in 2008-2025; in 2021-2025 it had the 1st most of any state. 2026 through September: 76, 27% below the average of 104 for those months in 2008-2025. Victoria was covered most often (416 times since 2008).
How many dense fog advisories does Texas get?
Every dense fog advisory that covered part of Texas. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 76 |
| 2025 | 220 |
| 2024 | 223 |
| 2023 | 156 |
| 2022 | 156 |
| 2021 | 225 |
| 2020 | 213 |
| 2019 | 277 |
| 2018 | 171 |
| 2017 | 178 |
| 2016 | 194 |
| 2015 | 186 |
| 2014 | 210 |
| 2013 | 135 |
| 2012 | 205 |
| 2011 | 134 |
| 2010 | 119 |
| 2009 | 163 |
| 2008 | 123 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Texas get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Texas?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Victoria | 416 | 74 | February 28, 2026 |
| Goliad | 405 | 71 | February 28, 2026 |
| Wharton | 402 | 81 | February 28, 2026 |
| Bee | 398 | 68 | February 28, 2026 |
| Fort Bend | 389 | 82 | April 22, 2026 |
| Jim Wells | 376 | 68 | February 28, 2026 |
| Chambers | 370 | 78 | March 5, 2026 |
| Live Oak | 346 | 62 | February 28, 2026 |
| Colorado | 338 | 70 | February 28, 2026 |
| Austin | 325 | 67 | April 22, 2026 |
| Jefferson | 323 | 10 | March 7, 2023 |
| Waller | 317 | 64 | April 22, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a dense fog advisory?
A dense fog advisory means fog will cut visibility to a quarter mile or less over a wide area. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Texas.