Alert archive / Tennessee / Johnson County
Weather alerts in Johnson County, Tennessee, 2021
79 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Johnson County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 79
- Warnings
- 25
- Watches
- 15
- Advisories
- 28
- Busiest month
- March21 alerts
- Busiest day
- March 28, 20217 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 5, 3:04 AM EST | Winter Weather Advisory | MRX | 19 hr |
| Jan 6, 3:31 PM EST | Winter Storm Watch | MRX | 24 hr |
| Jan 7, 4:40 AM EST | Winter Storm Warning | MRX | 39 hr |
| Jan 13, 12:56 AM EST | Freezing Fog Advisory | MRX | 9 hr |
| Jan 15, 2:58 PM EST | Winter Weather Advisory | MRX | 40 hr |
| Jan 26, 3:37 PM EST | Winter Storm Watch | MRX | 13 hr |
| Jan 27, 4:12 AM EST | Winter Storm Warning | MRX | 32 hr |
| Jan 29, 2:51 PM EST | High Wind Watch | MRX | 12 hr |
| Jan 30, 3:07 AM EST | Wind Advisory | MRX | 31 hr |
| Jan 31, 3:12 PM EST | Winter Storm Warning | MRX | 46 hr |
| Jan 31, 3:12 PM EST | Winter Weather Advisory | MRX | 46 hr |
| Feb 5, 3:03 PM EST | Winter Storm Watch | MRX | 13 hr |
| Feb 6, 3:50 AM EST | Winter Storm Warning | MRX | 32 hr |
| Feb 15, 4:26 AM EST | Wind Advisory | MRX | 20 hr |
| Feb 16, 3:35 PM EST | Winter Storm Watch | MRX | 13 hr |
| Feb 17, 4:47 AM EST | Winter Storm Warning | MRX | 30 hr |
| Feb 21, 2:43 PM EST | Wind Advisory | MRX | 19 hr |
| Mar 15, 3:11 AM EDT | Wind Advisory | MRX | 26 hr |
| Mar 16, 2:41 PM EDT | High Wind Watch | MRX | 13 hr |
| Mar 17, 3:32 AM EDT | High Wind Warning | MRX | 34 hr |
| Mar 18, 7:42 PM EDT | Severe Thunderstorm Warning | MRX | 26 min |
| Mar 23, 3:00 PM EDT | High Wind Watch | MRX | 19 hr |
| Mar 24, 9:43 AM EDT | High Wind Warning | MRX | 42 hr |
| Mar 26, 7:10 PM EDT | Flash Flood Watch | MRX | 44 hr |
| Mar 27, 11:32 AM EDT | Severe Thunderstorm Warning | MRX | 43 min |
| Mar 27, 12:17 PM EDT | Special Weather Statement | MRX | 43 min |
| Mar 27, 1:01 PM EDT | Severe Thunderstorm Warning | MRX | 44 min |
| Mar 27, 3:13 PM EDT | Wind Advisory | MRX | 23 hr |
| Mar 27, 8:31 PM EDT | Severe Thunderstorm Warning | MRX | 44 min |
| Mar 27, 9:50 PM EDT | Special Weather Statement | MRX | 40 min |
| Mar 28, 1:43 AM EDT | Areal Flood Warning | MRX | 3 hr |
| Mar 28, 2:18 AM EDT | Severe Thunderstorm Warning | MRX | 42 min |
| Mar 28, 2:58 AM EDT | Flash Flood Warning | MRX | 3 hr |
| Mar 28, 8:45 AM EDT | Flash Flood Warning | MRX | 4 hr |
| Mar 28, 12:43 PM EDT | Areal Flood Warning | MRX | 5 hr |
| Mar 30, 3:46 AM EDT | Flash Flood Watch | MRX | 35 hr |
| Mar 30, 9:37 PM EDT | Wind Advisory | MRX | 15 hr |
| Mar 31, 3:38 PM EDT | Wind Advisory | MRX | 12 hr |
| Apr 8, 3:58 AM EDT | Wind Advisory | MRX | 19 hr |
| Apr 20, 3:05 AM EDT | Freeze Watch | MRX | 24 hr |
| Apr 21, 3:04 AM EDT | Freeze Warning | MRX | 30 hr |
| Apr 22, 3:12 AM EDT | Freeze Warning | MRX | 30 hr |
| Apr 24, 1:09 AM EDT | High Wind Warning | MRX | 14 hr |
| Apr 29, 12:24 PM EDT | Wind Advisory | MRX | 7 hr |
| May 9, 3:36 AM EDT | Wind Advisory | MRX | 16 hr |
| May 12, 3:00 PM EDT | Frost Advisory | MRX | 18 hr |
| May 28, 6:42 PM EDT | Special Weather Statement | MRX | 48 min |
| May 28, 6:46 PM EDT | Severe Thunderstorm Warning | MRX | 29 min |
| Jun 4, 5:19 AM EDT | Dense Fog Advisory | MRX | 5 hr |
| Jun 7, 3:59 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Jun 8, 5:44 PM EDT | Special Weather Statement | MRX | 46 min |
| Jun 11, 3:58 AM EDT | Flash Flood Watch | MRX | 18 hr |
| Jun 30, 2:50 PM EDT | Flash Flood Watch | MRX | 39 hr |
| Jul 1, 4:32 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 2, 2:23 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 10, 7:00 PM EDT | Special Weather Statement | MRX | 45 min |
| Jul 16, 8:27 PM EDT | Special Weather Statement | MRX | 33 min |
| Aug 1, 4:44 AM EDT | Special Weather Statement | MRX | 31 min |
| Aug 7, 3:53 PM EDT | Special Weather Statement | MRX | 37 min |
| Aug 8, 3:25 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| Aug 14, 5:57 PM EDT | Severe Thunderstorm Warning | MRX | 33 min |
| Aug 16, 2:38 PM EDT | Flash Flood Watch | MRX | 33 hr |
| Aug 17, 8:35 PM EDT | Areal Flood Advisory | MRX | 4 hr |
| Aug 20, 3:49 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 25, 4:07 PM EDT | Special Weather Statement | MRX | 38 min |
| Aug 25, 4:20 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 30, 3:35 AM EDT | Flash Flood Watch | MRX | 48 hr |
| Aug 31, 6:20 PM EDT | Special Weather Statement | MRX | 40 min |
| Sep 13, 5:05 AM EDT | Dense Fog Advisory | MRX | 5 hr |
| Oct 9, 5:28 AM EDT | Dense Fog Advisory | MRX | 4 hr |
| Oct 17, 3:05 PM EDT | Frost Advisory | MRX | 17 hr |
| Oct 27, 2:57 AM EDT | High Wind Watch | MRX | 12 hr |
| Oct 27, 2:49 PM EDT | High Wind Warning | MRX | 29 hr |
| Nov 2, 3:55 AM EDT | Freeze Warning | MRX | 30 hr |
| Nov 4, 2:59 AM EDT | Freeze Warning | MRX | 31 hr |
| Nov 10, 2:23 PM EST | Wind Advisory | MRX | 29 hr |
| Dec 10, 2:08 PM EST | Wind Advisory | MRX | 25 hr |
| Dec 11, 11:49 AM EST | Special Weather Statement | MRX | 41 min |
| Dec 31, 12:40 AM EST | Dense Fog Advisory | MRX | 9 hr |
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 | 8 |
| Special Weather Statement | 11 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 4 |
| Wind Advisory | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.