National Weather ServiceNorth CarolinaDense Fog AdvisoryArchive to October 1, 2026
Dense Fog Advisories in North Carolina
The National Weather Service issued 52 dense fog advisories for North Carolina in 2025 and 60 a year on average in 2008-2025; in 2021-2025 it had the 17th most of any state. 2026 through September: 44, 21% above the average of 36 for those months in 2008-2025. Catawba was covered most often (203 times since 2008).
How many dense fog advisories does North Carolina get?
Every dense fog advisory that covered part of North Carolina. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 44 |
| 2025 | 52 |
| 2024 | 65 |
| 2023 | 55 |
| 2022 | 65 |
| 2021 | 67 |
| 2020 | 79 |
| 2019 | 50 |
| 2018 | 49 |
| 2017 | 49 |
| 2016 | 36 |
| 2015 | 72 |
| 2014 | 51 |
| 2013 | 60 |
| 2012 | 74 |
| 2011 | 49 |
| 2010 | 45 |
| 2009 | 82 |
| 2008 | 84 |
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 North Carolina 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 North Carolina?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Catawba | 203 | 32 | August 27, 2026 |
| Lincoln | 197 | 32 | August 27, 2026 |
| Alexander | 194 | 30 | August 27, 2026 |
| Cleveland | 191 | 31 | August 27, 2026 |
| Iredell | 190 | 29 | March 9, 2026 |
| Gaston | 180 | 23 | March 9, 2026 |
| Greater Burke | 180 | 28 | August 27, 2026 |
| Greater Caldwell | 178 | 28 | August 27, 2026 |
| Greater Rutherford | 171 | 29 | August 27, 2026 |
| Rowan | 171 | 24 | March 9, 2026 |
| Mecklenburg | 169 | 20 | March 9, 2026 |
| Davie | 168 | 23 | March 9, 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 North Carolina.