National Weather ServiceKansasDense Fog AdvisoryArchive to October 1, 2026
Dense Fog Advisories in Kansas
The National Weather Service issued 124 dense fog advisories for Kansas in 2025 and 93 a year on average in 2008-2025; in 2021-2025 it had the 4th most of any state. 2026 through September: 78, 25% above the average of 63 for those months in 2008-2025. Thomas was covered most often (259 times since 2008).
How many dense fog advisories does Kansas get?
Every dense fog advisory that covered part of Kansas. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 78 |
| 2025 | 124 |
| 2024 | 139 |
| 2023 | 102 |
| 2022 | 62 |
| 2021 | 85 |
| 2020 | 119 |
| 2019 | 155 |
| 2018 | 77 |
| 2017 | 111 |
| 2016 | 98 |
| 2015 | 78 |
| 2014 | 77 |
| 2013 | 91 |
| 2012 | 79 |
| 2011 | 53 |
| 2010 | 84 |
| 2009 | 82 |
| 2008 | 62 |
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 Kansas 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 Kansas?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Thomas | 259 | 70 | September 30, 2026 |
| Logan | 247 | 69 | September 29, 2026 |
| Gove | 239 | 71 | September 29, 2026 |
| Ford | 237 | 59 | September 28, 2026 |
| Sheridan | 237 | 64 | September 30, 2026 |
| Rawlins | 235 | 61 | September 30, 2026 |
| Decatur | 234 | 67 | September 30, 2026 |
| Hodgeman | 231 | 57 | September 28, 2026 |
| Finney | 226 | 60 | September 28, 2026 |
| Sherman | 226 | 56 | September 29, 2026 |
| Gray | 224 | 54 | September 28, 2026 |
| Norton | 221 | 62 | September 30, 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 Kansas.