Flash Flood Warnings in Tennessee
3,889 flash flood warnings since 1986. 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 since 1986. Tap one for its archive.
- Flash Flood Warnings
- 3,889
- Busiest year
- 1998244 flash flood warnings
- Average year
- 97over 40 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Shelby County347
- Davidson County238
- Madison County219
- Lawrence County215
- Fayette County210
- Decatur County201
- Henderson County194
- Wilson County187
- Sumner County187
- Williamson County178
- Carroll County176
- Hardeman County174
- Tipton County171
- Gibson County170
- Wayne County166
- McNairy County165
- Hardin County164
- Chester County161
- Maury County155
- Haywood County155
- Giles County154
- Rutherford County144
- Lauderdale County141
- Humphreys County140
- Dickson County139
- Hickman County138
- Cheatham County136
- Dyer County130
- Weakley County128
- Robertson County127
- Benton County126
- Obion County126
- Perry County125
- Lincoln County124
- Montgomery County115
- Lewis County114
- Putnam County114
- Franklin County113
- Henry County113
- Crockett County111
55 more counties
- Cumberland County109
- Knox County109
- Marshall County108
- Hamilton County106
- Overton County103
- Smith County102
- Houston County101
- Lake County101
- Stewart County101
- Fentress County94
- Warren County93
- Trousdale County93
- Sevier County90
- White County90
- Macon County88
- Blount County87
- Jackson County86
- Rhea County86
- Coffee County84
- Moore County84
- Bedford County82
- Morgan County81
- Pickett County81
- Anderson County78
- Clay County78
- Roane County77
- Van Buren County75
- DeKalb County75
- Cannon County71
- Monroe County71
- Grundy County69
- Sullivan County68
- Bledsoe County67
- Loudon County67
- Campbell County65
- McMinn County63
- Scott County62
- Meigs County62
- Greene County60
- Marion County60
- Carter County59
- Sequatchie County56
- Washington County55
- Bradley County53
- Claiborne County53
- Hawkins County51
- Cocke County50
- Johnson County48
- Union County45
- Jefferson County44
- Unicoi County42
- Polk County37
- Grainger County37
- Hancock County37
- Hamblen County33
The latest flash flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 9:42 PM CDT | Flash Flood Warning | OHX | Jackson, Overton | 3 hr |
| Sep 21, 9:19 PM CDT | Flash Flood Warning | OHX | Cumberland | 5 hr |
| Sep 19, 2:01 PM CDT | Flash Flood Warning | OHX | Cumberland | 84 min |
| Sep 8, 1:53 PM CDT | Flash Flood Warning | OHX | Wayne | 79 min |
| Sep 6, 3:05 AM CDT | Flash Flood Warning | OHX | Cumberland | 3 hr |
| Aug 20, 6:52 AM CDT | Flash Flood Warning | OHX | Montgomery | 3 hr |
| Aug 20, 4:15 AM CDT | Flash Flood Warning | OHX | Hickman, Humphreys, Lewis, Maury, Perry, Williamson | 4 hr |
| Aug 17, 4:32 PM CDT | Flash Flood Warning | MRX | Carter, Johnson, Sullivan | 3 hr |
| Aug 17, 4:18 PM CDT | Flash Flood Warning | MRX | Anderson, Campbell, Knox, Morgan, Scott | 3 hr |
| Aug 14, 7:03 PM CDT | Flash Flood Warning | MRX | Johnson, Sullivan | 3 hr |
| Aug 14, 6:23 PM CDT | Flash Flood Warning | MRX | Sullivan | 3 hr |
| Aug 14, 12:18 AM CDT | Flash Flood Warning | MRX | Claiborne | 117 min |
Nearby
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.