Alert archive / Tennessee / Flash Flood Warnings
Flash Flood Warnings in Tennessee, 2021
152 flash flood warnings in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Flash Flood Warnings
- 152
- Busiest month
- March68 flash flood warnings
- Busiest day
- March 28, 202138 flash flood warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 7:52 PM CST | Flash Flood Warning | OHX | Dickson, Hickman, Perry | 3 hr |
| Feb 27, 8:07 PM CST | Flash Flood Warning | OHX | Cheatham, Davidson, Rutherford, Williamson | 3 hr |
| Feb 27, 8:40 PM CST | Flash Flood Warning | OHX | Smith, Wilson | 3 hr |
| Feb 27, 10:01 PM CST | Flash Flood Warning | OHX | Davidson, Sumner, Trousdale, Wilson | 119 min |
| Feb 28, 3:37 PM CST | Flash Flood Warning | MEG | Lake, Obion | 2 hr |
| Feb 28, 4:37 PM CST | Flash Flood Warning | MEG | Dyer, Lake, Obion, Weakley | 5 hr |
| Feb 28, 4:44 PM CST | Flash Flood Warning | MEG | Lake, Obion | 5 hr |
| Feb 28, 5:16 PM CST | Flash Flood Warning | MEG | Lauderdale | 3 hr |
| Feb 28, 5:55 PM CST | Flash Flood Warning | OHX | Houston, Humphreys, Montgomery, Robertson, Stewart | 4 hr |
| Feb 28, 6:00 PM CST | Flash Flood Warning | MEG | Lake, Obion | 2 hr |
| Feb 28, 6:35 PM CST | Flash Flood Warning | MEG | Benton, Henry, Obion, Weakley | 3 hr |
| Feb 28, 6:42 PM CST | Flash Flood Warning | OHX | Cheatham, Davidson, Dickson, Houston, Humphreys, Montgomery and 2 more | 5 hr |
| Feb 28, 7:24 PM CST | Flash Flood Warning | OHX | Dickson, Hickman, Humphreys, Perry | 3 hr |
| Feb 28, 7:26 PM CST | Flash Flood Warning | OHX | Cheatham, Davidson, Macon, Smith, Sumner, Trousdale and 2 more | 4 hr |
| Feb 28, 8:16 PM CST | Flash Flood Warning | OHX | Clay, Jackson, Overton, Pickett | 3 hr |
| Feb 28, 8:23 PM CST | Flash Flood Warning | OHX | Davidson, Maury, Rutherford, Smith, Williamson, Wilson | 3 hr |
| Mar 17, 9:04 AM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, McNairy | 3 hr |
| Mar 17, 11:38 AM CDT | Flash Flood Warning | MEG | Shelby, Tipton | 3 hr |
| Mar 17, 1:54 PM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Mar 17, 9:19 PM CDT | Flash Flood Warning | HUN | Franklin, Lincoln | 3 hr |
| Mar 25, 10:22 AM CDT | Flash Flood Warning | HUN | Franklin | 3 hr |
| Mar 25, 12:03 PM CDT | Flash Flood Warning | MRX | Bradley, Hamilton, Marion, Sequatchie | 3 hr |
| Mar 25, 3:07 PM CDT | Flash Flood Warning | HUN | Franklin, Lincoln, Moore | 3 hr |
| Mar 25, 4:27 PM CDT | Flash Flood Warning | MRX | Bradley, Hamilton, Marion, Sequatchie | 4 hr |
| Mar 27, 5:13 AM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Mar 27, 5:14 AM CDT | Flash Flood Warning | MEG | Madison | 3 hr |
| Mar 27, 9:33 AM CDT | Flash Flood Warning | MEG | Chester, Decatur, Hardeman, Hardin, Henderson, McNairy | 5 hr |
| Mar 27, 9:36 AM CDT | Flash Flood Warning | MRX | Morgan, Scott | 4 hr |
| Mar 27, 12:14 PM CDT | Flash Flood Warning | OHX | Bedford, Marshall, Maury, Rutherford, Williamson | 3 hr |
| Mar 27, 1:15 PM CDT | Flash Flood Warning | OHX | Bedford, Giles, Marshall, Maury, Rutherford | 3 hr |
| Mar 27, 6:09 PM CDT | Flash Flood Warning | OHX | Hickman, Lewis, Maury, Perry | 3 hr |
| Mar 27, 6:44 PM CDT | Flash Flood Warning | OHX | Maury, Williamson | 3 hr |
| Mar 27, 7:09 PM CDT | Flash Flood Warning | MRX | Anderson, Campbell, Claiborne, Morgan, Scott, Union | 3 hr |
| Mar 27, 7:35 PM CDT | Flash Flood Warning | OHX | Bedford, Cannon, Rutherford, Williamson | 3 hr |
| Mar 27, 8:23 PM CDT | Flash Flood Warning | MEG | Chester, Henderson, Madison | 6 hr |
| Mar 27, 9:02 PM CDT | Flash Flood Warning | MEG | Decatur | 7 hr |
| Mar 27, 9:02 PM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Humphreys, Lewis, Maury, Perry | 14 hr |
| Mar 27, 9:22 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Dickson, Williamson | 14 hr |
| Mar 27, 9:35 PM CDT | Flash Flood Warning | OHX | Marshall, Maury, Rutherford, Williamson | 13 hr |
| Mar 27, 10:03 PM CDT | Flash Flood Warning | MEG | Benton, Carroll, Decatur, Henderson | 4 hr |
| Mar 27, 10:05 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Dickson, Robertson | 11 hr |
| Mar 27, 10:09 PM CDT | Flash Flood Warning | OHX | Davidson, Rutherford, Wilson | 11 hr |
| Mar 27, 10:13 PM CDT | Flash Flood Warning | MRX | Anderson, Campbell, Claiborne, Morgan, Scott, Union | 3 hr |
| Mar 27, 10:17 PM CDT | Flash Flood Warning | MEG | Fayette, Shelby | 3 hr |
| Mar 27, 10:17 PM CDT | Flash Flood Warning | OHX | Cannon, DeKalb, Putnam, Smith, Van Buren, Warren and 1 more | 12 hr |
| Mar 27, 10:20 PM CDT | Flash Flood Warning | OHX | Dickson, Houston, Humphreys | 11 hr |
| Mar 27, 10:35 PM CDT | Flash Flood Warning | MEG | Haywood, Madison, Tipton | 3 hr |
| Mar 27, 10:37 PM CDT | Flash Flood Warning | OHX | Bedford, Cannon, Coffee, Rutherford, Warren, Williamson and 1 more | 11 hr |
| Mar 27, 10:49 PM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Mar 27, 11:08 PM CDT | Flash Flood Warning | OHX | Clay, Jackson, Macon, Putnam, Smith, Sumner and 2 more | 11 hr |
| Mar 27, 11:11 PM CDT | Flash Flood Warning | MEG | Fayette, Hardeman | 3 hr |
| Mar 27, 11:57 PM CDT | Flash Flood Warning | OHX | Clay, Fentress, Overton, Pickett, Putnam | 11 hr |
| Mar 28, 12:04 AM CDT | Flash Flood Warning | OHX | Davidson, Robertson, Sumner, Trousdale, Wilson | 6 hr |
| Mar 28, 12:14 AM CDT | Flash Flood Warning | MRX | Claiborne, Grainger, Greene, Hamblen, Hancock, Hawkins and 2 more | 3 hr |
| Mar 28, 12:41 AM CDT | Flash Flood Warning | OHX | Davidson, Williamson, Wilson | 4 hr |
| Mar 28, 1:11 AM CDT | Flash Flood Warning | MRX | Anderson, Campbell, Claiborne, Morgan, Scott, Union | 3 hr |
| Mar 28, 1:58 AM CDT | Flash Flood Warning | MRX | Carter, Johnson, Sullivan, Washington | 3 hr |
| Mar 28, 3:04 AM CDT | Flash Flood Warning | MRX | Claiborne, Grainger, Greene, Hamblen, Hancock, Hawkins and 2 more | 7 hr |
| Mar 28, 3:16 AM CDT | Flash Flood Warning | MRX | Sullivan | 3 hr |
| Mar 28, 4:07 AM CDT | Flash Flood Warning | MRX | Anderson, Campbell, Claiborne, Morgan, Scott, Union | 5 hr |
| Mar 28, 5:36 AM CDT | Flash Flood Warning | MRX | Bledsoe, Marion, Rhea, Sequatchie | 6 hr |
| Mar 28, 5:40 AM CDT | Flash Flood Warning | MRX | Anderson, Knox, Loudon, Morgan, Roane, Union | 5 hr |
| Mar 28, 6:08 AM CDT | Flash Flood Warning | MRX | Sullivan | 6 hr |
| Mar 28, 6:17 AM CDT | Flash Flood Warning | MRX | Bradley, Hamilton, McMinn, Meigs, Rhea, Sequatchie | 6 hr |
| Mar 28, 6:49 AM CDT | Flash Flood Warning | MRX | Grainger, Hamblen, Jefferson, Knox, Sevier | 5 hr |
| Mar 28, 6:52 AM CDT | Flash Flood Warning | MRX | Bradley, Hamilton, Polk | 5 hr |
| Mar 28, 7:03 AM CDT | Flash Flood Warning | MRX | Blount, Knox, Loudon, McMinn, Monroe, Polk and 1 more | 4 hr |
| Mar 28, 7:26 AM CDT | Flash Flood Warning | MRX | Blount, Cocke, Sevier | 5 hr |
| Mar 28, 7:43 AM CDT | Flash Flood Warning | MRX | Greene, Hawkins, Unicoi, Washington | 4 hr |
| Mar 28, 7:45 AM CDT | Flash Flood Warning | MRX | Carter, Johnson | 4 hr |
| Mar 30, 7:56 PM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Mar 30, 9:54 PM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, Shelby | 3 hr |
| Mar 31, 12:04 AM CDT | Flash Flood Warning | MEG | Hardin, McNairy | 8 hr |
| Mar 31, 1:28 AM CDT | Flash Flood Warning | OHX | Lawrence, Wayne | 8 hr |
| Mar 31, 2:13 AM CDT | Flash Flood Warning | OHX | Giles, Marshall, Maury | 7 hr |
| Mar 31, 7:42 AM CDT | Flash Flood Warning | MRX | Bradley, Hamilton, Marion, Sequatchie | 5 hr |
| Mar 31, 7:52 AM CDT | Flash Flood Warning | HUN | Franklin, Lincoln, Moore | 3 hr |
| May 3, 7:50 AM CDT | Flash Flood Warning | OHX | Hickman, Humphreys, Lewis, Maury, Perry, Williamson | 3 hr |
| May 4, 6:00 AM CDT | Flash Flood Warning | MRX | Blount, Sevier | 3 hr |
| May 4, 10:11 AM CDT | Flash Flood Warning | MRX | Hamilton, Marion, Sequatchie | 3 hr |
| Jun 9, 6:50 AM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Jun 11, 7:08 PM CDT | Flash Flood Warning | OHX | Rutherford | 112 min |
| Jun 12, 5:41 PM CDT | Flash Flood Warning | OHX | Marshall, Maury, Williamson | 3 hr |
| Jul 1, 4:20 PM CDT | Flash Flood Warning | MEG | Shelby | 55 min |
| Jul 9, 10:22 AM CDT | Flash Flood Warning | OHX | Lawrence, Wayne | 113 min |
| Jul 9, 12:52 PM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Jul 9, 3:12 PM CDT | Flash Flood Warning | MRX | Knox | 111 min |
| Jul 11, 3:12 AM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Jul 11, 5:09 AM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, Shelby | 2 hr |
| Jul 11, 7:54 PM CDT | Flash Flood Warning | MRX | Meigs | 3 hr |
| Jul 17, 8:00 PM CDT | Flash Flood Warning | OHX | Lawrence | 3 hr |
| Jul 17, 9:03 PM CDT | Flash Flood Warning | OHX | Lawrence | 117 min |
| Jul 18, 4:18 PM CDT | Flash Flood Warning | MRX | Anderson, Jefferson, Knox, Roane, Sevier | 2 hr |
| Jul 18, 4:31 PM CDT | Flash Flood Warning | OHX | Davidson | 89 min |
| Jul 18, 8:03 PM CDT | Flash Flood Warning | OHX | Lawrence, Wayne | 11 hr |
| Jul 19, 10:41 PM CDT | Flash Flood Warning | OHX | Humphreys, Perry | 2 hr |
| Jul 20, 6:49 PM CDT | Flash Flood Warning | OHX | Wayne | 116 min |
| Jul 25, 5:15 PM CDT | Flash Flood Warning | OHX | Davidson | 2 hr |
| Jul 25, 5:19 PM CDT | Flash Flood Warning | OHX | Montgomery | 116 min |
| Jul 26, 3:37 PM CDT | Flash Flood Warning | MRX | Bledsoe, Bradley, Hamilton, McMinn, Meigs, Rhea | 68 min |
| Jul 31, 10:24 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Williamson | 4 hr |
| Jul 31, 11:10 PM CDT | Flash Flood Warning | OHX | Davidson, Rutherford, Wilson | 3 hr |
| Aug 13, 2:51 PM CDT | Flash Flood Warning | MEG | Fayette, Shelby | 3 hr |
| Aug 13, 3:28 PM CDT | Flash Flood Warning | OHX | Hickman, Humphreys, Perry | 2 hr |
| Aug 14, 7:36 PM CDT | Flash Flood Warning | MRX | Monroe | 3 hr |
| Aug 15, 1:24 PM CDT | Flash Flood Warning | MEG | Hardin | 4 hr |
| Aug 18, 2:33 PM CDT | Flash Flood Warning | OHX | Davidson, Sumner, Wilson | 117 min |
| Aug 18, 5:13 PM CDT | Flash Flood Warning | OHX | Lawrence, Wayne | 3 hr |
| Aug 19, 6:26 PM CDT | Flash Flood Warning | MEG | Shelby | 100 min |
| Aug 21, 3:29 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Humphreys | 5 hr |
| Aug 21, 4:49 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Houston, Humphreys | 3 hr |
| Aug 21, 6:24 AM CDT | Flash Flood Warning | OHX | Houston, Humphreys, Stewart | 5 hr |
| Aug 21, 6:49 AM CDT | Flash Flood Warning | MEG | Benton, Henry | 4 hr |
| Aug 21, 7:47 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Houston, Humphreys | 9 hr |
| Aug 21, 10:12 AM CDT | Flash Flood Warning | OHX | Hickman, Humphreys, Lewis, Maury, Perry | 3 hr |
| Aug 21, 4:55 PM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Houston, Humphreys | 6 hr |
| Aug 21, 5:07 PM CDT | Flash Flood Warning | OHX | Dickson, Houston, Montgomery, Stewart | 4 hr |
| Aug 21, 5:58 PM CDT | Flash Flood Warning | OHX | Cheatham, Dickson, Houston, Montgomery | 3 hr |
| Aug 21, 7:24 PM CDT | Flash Flood Warning | OHX | Marshall, Maury, Williamson | 4 hr |
| Aug 21, 7:43 PM CDT | Flash Flood Warning | OHX | Lewis, Marshall, Maury | 3 hr |
| Aug 25, 3:49 PM CDT | Flash Flood Warning | MRX | Knox, Loudon | 3 hr |
| Aug 30, 5:20 PM CDT | Flash Flood Warning | MRX | Bradley | 115 min |
| Aug 30, 5:37 PM CDT | Flash Flood Warning | OHX | Macon, Smith, Sumner, Trousdale, Wilson | 2 hr |
| Aug 31, 5:41 PM CDT | Flash Flood Warning | MRX | Knox | 2 hr |
| Sep 15, 9:33 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Lewis, Maury, Perry, Williamson | 117 min |
| Sep 18, 2:17 PM CDT | Flash Flood Warning | MRX | Bledsoe, Sequatchie | 3 hr |
| Sep 18, 3:25 PM CDT | Flash Flood Warning | OHX | Bedford, Coffee | 4 hr |
| Sep 18, 5:20 PM CDT | Flash Flood Warning | MRX | Bledsoe, Sequatchie | 3 hr |
| Sep 18, 5:21 PM CDT | Flash Flood Warning | OHX | Giles | 114 min |
| Sep 19, 4:33 PM CDT | Flash Flood Warning | MRX | Hamilton, Marion, Sequatchie | 6 hr |
| Sep 19, 6:14 PM CDT | Flash Flood Warning | MRX | Hamilton | 4 hr |
| Sep 20, 10:25 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Lewis, Maury, Williamson | 5 hr |
| Sep 20, 1:53 PM CDT | Flash Flood Warning | MRX | Hamilton, Marion | 4 hr |
| Sep 20, 3:25 PM CDT | Flash Flood Warning | OHX | Cheatham, Dickson, Hickman, Lewis, Maury, Williamson | 5 hr |
| Sep 20, 4:10 PM CDT | Flash Flood Warning | OHX | Giles, Marshall, Maury, Williamson | 3 hr |
| Sep 20, 6:51 PM CDT | Flash Flood Warning | OHX | Giles, Lawrence, Lewis, Maury, Wayne | 114 min |
| Sep 21, 9:42 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Dickson | 60 min |
| Oct 5, 9:08 PM CDT | Flash Flood Warning | OHX | Lawrence, Lewis, Wayne | 3 hr |
| Oct 6, 2:30 AM CDT | Flash Flood Warning | OHX | Hickman, Maury | 2 hr |
| Oct 6, 3:31 AM CDT | Flash Flood Warning | OHX | Dickson | 119 min |
| Oct 6, 3:32 PM CDT | Flash Flood Warning | MRX | Bledsoe, Sequatchie | 9 hr |
| Oct 6, 3:56 PM CDT | Flash Flood Warning | OHX | Van Buren | 6 hr |
| Oct 6, 6:54 PM CDT | Flash Flood Warning | HUN | Franklin | 6 hr |
| Oct 6, 7:20 PM CDT | Flash Flood Warning | MRX | Marion | 6 hr |
| Oct 6, 7:48 PM CDT | Flash Flood Warning | OHX | Giles | 5 hr |
| Oct 6, 8:52 PM CDT | Flash Flood Warning | OHX | Cumberland, Fentress, Overton, Pickett, Putnam, White | 3 hr |
| Oct 6, 8:56 PM CDT | Flash Flood Warning | OHX | Humphreys, Perry | 4 hr |
| Oct 6, 8:59 PM CDT | Flash Flood Warning | OHX | Perry, Wayne | 4 hr |
| Oct 6, 10:24 PM CDT | Flash Flood Warning | OHX | Bedford | 3 hr |
| Dec 11, 2:51 AM CST | Flash Flood Warning | MEG | Shelby | 2 hr |
| Dec 11, 6:43 AM CST | Flash Flood Warning | MRX | Scott | 4 hr |
| Dec 29, 2:53 PM CST | Flash Flood Warning | MEG | Haywood | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Maury County19
- Dickson County18
- Williamson County18
- Davidson County16
- Hickman County15
- Humphreys County15
- Shelby County15
- Wilson County12
- Perry County11
- Rutherford County10
- Hamilton County10
- Sequatchie County10
- Lewis County10
- Cheatham County9
- Houston County9
- Marion County8
- Marshall County8
- Lawrence County8
- Wayne County8
- Sumner County7
- Bradley County7
- Union County7
- Knox County7
- Smith County6
- Fayette County6
- Morgan County6
- Scott County6
- Bedford County6
- Giles County6
- Anderson County6
- Claiborne County6
- Trousdale County5
- Obion County5
- Montgomery County5
- Hardeman County5
- Franklin County5
- Sullivan County5
- Bledsoe County5
- Sevier County5
- Lake County4
52 more counties
- Robertson County4
- Campbell County4
- Putnam County4
- Stewart County3
- Benton County3
- Macon County3
- Clay County3
- Overton County3
- Pickett County3
- McNairy County3
- Lincoln County3
- Madison County3
- Decatur County3
- Hardin County3
- Henderson County3
- Cannon County3
- Grainger County3
- Greene County3
- Hamblen County3
- Hawkins County3
- Rhea County3
- Loudon County3
- McMinn County3
- Meigs County3
- Blount County3
- Weakley County2
- Henry County2
- Jackson County2
- Tipton County2
- Moore County2
- Chester County2
- Van Buren County2
- Warren County2
- White County2
- Haywood County2
- Coffee County2
- Fentress County2
- Hancock County2
- Carter County2
- Johnson County2
- Washington County2
- Roane County2
- Jefferson County2
- Polk County2
- Monroe County2
- Dyer County1
- Lauderdale County1
- Carroll County1
- DeKalb County1
- Cocke County1
- Unicoi County1
- Cumberland County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.