National Weather ServiceTennesseeFlood AdvisoryArchive to October 1, 2026
Flood Advisories in Tennessee
The National Weather Service issued 449 flood advisories for Tennessee in 2025 and 356 a year on average in 2008-2025; in 2021-2025 it had the 9th most of any state. 2026 through September: 327, in line with the average of 327 for those months in 2008-2025. Davidson was covered most often (631 times since 2008).
How many flood advisories does Tennessee get?
Every flood advisory that covered part of Tennessee. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 327 |
| 2025 | 449 |
| 2024 | 320 |
| 2023 | 321 |
| 2022 | 516 |
| 2021 | 577 |
| 2020 | 599 |
| 2019 | 603 |
| 2018 | 532 |
| 2017 | 311 |
| 2016 | 219 |
| 2015 | 289 |
| 2014 | 199 |
| 2013 | 364 |
| 2012 | 211 |
| 2011 | 225 |
| 2010 | 229 |
| 2009 | 318 |
| 2008 | 128 |
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 Tennessee 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 Tennessee?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Davidson | 631 | 120 | July 10, 2026 |
| Perry | 418 | 49 | July 11, 2026 |
| Shelby | 401 | 148 | September 11, 2026 |
| Knox | 383 | 101 | September 23, 2026 |
| Blount | 349 | 91 | September 23, 2026 |
| Hamilton | 334 | 42 | September 23, 2026 |
| Monroe | 327 | 60 | September 23, 2026 |
| Hickman | 311 | 38 | June 22, 2026 |
| Williamson | 309 | 62 | July 10, 2026 |
| Anderson | 307 | 82 | September 23, 2026 |
| Decatur | 303 | 51 | August 8, 2026 |
| Wilson | 301 | 66 | July 11, 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 flood advisory?
A flood advisory covers flooding that is less serious than a warning, such as water on roads or in low-lying areas, that is still a hazard to drivers and walkers. 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 Tennessee.