Weather alerts in Tennessee, 2020
3,090 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 3,090
- Warnings
- 785
- Watches
- 105
- Advisories
- 760
- Busiest month
- July643 alerts
- Busiest day
- January 11, 202098 alerts
Over time
By month
The alerts
3,090 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 444 |
| Tornado Warning | 62 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 24 |
| Mesoscale Discussion | 99 |
| Special Weather Statement | 1,341 |
| Flooding | |
| Areal Flood Warning | 41 |
| Flash Flood Warning | 68 |
| River Flood Warning | 134 |
| Flash Flood Watch | 33 |
| Flood Watch | 12 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 398 |
| River Flood Advisory | 201 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 20 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 17 |
| Freeze Watch | 13 |
| Frost Advisory | 30 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 11 |
| High Wind Watch | 8 |
| Wind Advisory | 48 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 47 |
| Freezing Fog Advisory | 9 |
| Tropical | |
| Tropical Storm Warning | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Davidson County196
- Blount County186
- Lawrence County177
- Cocke County175
- Sevier County172
- Wilson County167
- Monroe County164
- Wayne County160
- Greene County159
- Giles County158
- Decatur County154
- Hickman County154
- Williamson County154
- Shelby County151
- Hardin County150
- Franklin County149
- Dyer County145
- Lauderdale County145
- Maury County144
- Humphreys County143
- Perry County140
- Carter County138
- Fayette County137
- Dickson County134
- Sumner County134
- Lincoln County131
- Gibson County131
- Benton County129
- Stewart County127
- Knox County127
- Scott County127
- Madison County127
- Marshall County126
- Carroll County126
- Lewis County125
- Hamilton County125
- Rutherford County124
- Henderson County124
- Lake County124
- Houston County122
55 more counties
- Campbell County122
- Cumberland County121
- Putnam County121
- Smith County121
- Tipton County121
- Obion County121
- Polk County119
- Henry County119
- McNairy County118
- Crockett County118
- Overton County117
- Trousdale County117
- Morgan County117
- Montgomery County116
- Bledsoe County116
- Chester County116
- Jefferson County116
- Jackson County114
- Moore County114
- Hardeman County114
- Cheatham County113
- Johnson County113
- Fentress County112
- White County112
- McMinn County112
- Anderson County111
- Loudon County111
- Sequatchie County111
- Unicoi County111
- Marion County110
- Warren County109
- Claiborne County109
- DeKalb County108
- Roane County108
- Bedford County107
- Robertson County107
- Rhea County107
- Haywood County107
- Van Buren County106
- Hancock County106
- Weakley County104
- Macon County102
- Hawkins County102
- Sullivan County102
- Washington County102
- Bradley County100
- Meigs County100
- Union County98
- Cannon County96
- Pickett County94
- Grainger County94
- Grundy County90
- Coffee County89
- Hamblen County89
- Clay County88
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.