Weather alerts in Tennessee, 2021
3,002 weather alerts in 2021, 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 2021. Tap one for its archive.
- Alerts
- 3,002
- Warnings
- 892
- Watches
- 103
- Advisories
- 754
- Busiest month
- March722 alerts
- Busiest day
- March 28, 2021214 alerts
Over time
By month
The alerts
3,002 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 | 431 |
| Tornado Warning | 108 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 20 |
| Mesoscale Discussion | 113 |
| Special Weather Statement | 1,140 |
| Flooding | |
| Areal Flood Warning | 36 |
| Flash Flood Warning | 152 |
| River Flood Warning | 113 |
| Flash Flood Watch | 33 |
| Flood Watch | 5 |
| Areal Flood Advisory | 444 |
| River Flood Advisory | 133 |
| Winter | |
| Ice Storm Warning | 2 |
| Winter Storm Warning | 12 |
| Winter Storm Watch | 14 |
| Winter Weather Advisory | 27 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 23 |
| Cold | |
| Freeze Warning | 27 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 10 |
| Frost Advisory | 23 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 9 |
| High Wind Watch | 8 |
| Wind Advisory | 37 |
| Fog and smoke | |
| Dense Fog Advisory | 57 |
| Freezing Fog Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Davidson County210
- Hickman County209
- Shelby County206
- Williamson County200
- Maury County186
- Perry County181
- Wilson County176
- Fayette County175
- Lawrence County174
- Rutherford County173
- Giles County171
- Lewis County165
- Madison County162
- Marshall County162
- Wayne County162
- Dickson County158
- Bedford County156
- Hardeman County156
- Decatur County155
- Tipton County153
- Lauderdale County152
- Monroe County151
- Humphreys County149
- Hardin County149
- Sevier County147
- Blount County146
- Chester County146
- Haywood County146
- Campbell County145
- Sumner County145
- Henderson County144
- McNairy County144
- Scott County142
- Hamilton County142
- Lincoln County139
- Knox County137
- Cocke County136
- Morgan County136
- Smith County136
- Dyer County135
55 more counties
- Franklin County135
- Montgomery County135
- Cheatham County134
- Carroll County134
- Fentress County132
- Putnam County132
- Greene County128
- Marion County128
- Trousdale County128
- Cannon County127
- Obion County127
- Gibson County127
- Crockett County126
- Overton County125
- Houston County125
- Henry County124
- Weakley County124
- Sequatchie County123
- Anderson County122
- Lake County122
- Robertson County122
- Cumberland County121
- Coffee County120
- Stewart County120
- Benton County120
- DeKalb County119
- Claiborne County119
- Moore County119
- Warren County118
- Bledsoe County116
- Bradley County115
- Jackson County115
- Clay County112
- Macon County112
- Polk County110
- White County109
- Union County109
- Pickett County109
- Grainger County108
- Rhea County101
- McMinn County99
- Jefferson County98
- Loudon County98
- Carter County96
- Hawkins County96
- Grundy County96
- Meigs County96
- Van Buren County94
- Roane County94
- Hamblen County89
- Sullivan County88
- Hancock County87
- Johnson County79
- Washington County73
- Unicoi County71
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.