National Weather ServiceTennesseeSevere Thunderstorm WarningArchive to October 1, 2026
Severe Thunderstorm Warnings in Tennessee
The National Weather Service issued 741 severe thunderstorm warnings for Tennessee in 2025 and 603 a year on average in 2008-2025; in 2021-2025 it had the 19th most of any state. 2026 through September: 455, 20% below the average of 566 for those months in 2008-2025. Davidson was covered most often (665 times since 2008).
How many severe thunderstorm warnings does Tennessee get?
Every severe thunderstorm warning that covered part of Tennessee. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 455 |
| 2025 | 741 |
| 2024 | 488 |
| 2023 | 733 |
| 2022 | 432 |
| 2021 | 431 |
| 2020 | 444 |
| 2019 | 344 |
| 2018 | 546 |
| 2017 | 480 |
| 2016 | 564 |
| 2015 | 455 |
| 2014 | 549 |
| 2013 | 401 |
| 2012 | 884 |
| 2011 | 1,087 |
| 2010 | 802 |
| 2009 | 855 |
| 2008 | 622 |
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 | 665 | 158 | August 7, 2026 |
| Shelby | 630 | 176 | August 22, 2026 |
| Wilson | 614 | 129 | September 5, 2026 |
| Williamson | 613 | 130 | August 8, 2026 |
| Rutherford | 588 | 119 | August 8, 2026 |
| Knox | 573 | 141 | September 6, 2026 |
| Fayette | 565 | 145 | September 11, 2026 |
| Sumner | 543 | 135 | July 27, 2026 |
| Tipton | 540 | 129 | August 22, 2026 |
| Dickson | 518 | 115 | August 20, 2026 |
| Lauderdale | 515 | 107 | August 20, 2026 |
| Blount | 500 | 115 | August 21, 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.
The latest severe thunderstorm warnings for Tennessee in AreaZine's record
NWS HuntsvilleWarningSeptember 21, 2026
Severe Thunderstorm Warning: Madison and Lincoln, AL and TN
Expired 7:45 p.m. CDT, September 21, 2026
NWS MorristownWarningSeptember 21, 2026
Severe Thunderstorm Warning: Sullivan, Scott, Washington County and 1 more, TN and VA
Expired 7:00 p.m. EDT, September 21, 2026
NWS MorristownWarningSeptember 21, 2026
Severe Thunderstorm Warning: Campbell and Claiborne, TN
Expired 3:45 p.m. EDT, September 21, 2026
NWS MorristownWarningSeptember 20, 2026
Severe Thunderstorm Warning: Hamilton, Marion and Sequatchie, TN
Expired 7:30 p.m. EDT, September 20, 2026
NWS MorristownWarningSeptember 18, 2026
Severe Thunderstorm Warning: Sevier, TN
Expired 8:45 p.m. EDT, September 18, 2026
NWS MorristownWarningSeptember 18, 2026
Severe Thunderstorm Warning: Grainger, Hamblen and Jefferson, TN
Expired 7:45 p.m. EDT, September 18, 2026
NWS NashvilleWarningSeptember 5, 2026
Severe Thunderstorm Warning: Wilson, TN
Expired 7:30 p.m. CDT, September 5, 2026
NWS HuntsvilleWarningSeptember 5, 2026
Severe Thunderstorm Warning: Franklin and Lincoln, TN
Expired 6:45 p.m. CDT, September 5, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a severe thunderstorm warning?
A severe thunderstorm warning means a storm is producing, or is about to produce, hail one inch across or larger and/or winds of 58 mph or more. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Tennessee.