Alert archive / Tennessee / Johnson County
Weather alerts in Johnson County, Tennessee, 2020
113 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 113
- Warnings
- 23
- Watches
- 15
- Advisories
- 44
- Busiest month
- April18 alerts
- Busiest day
- February 6, 20204 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 4, 3:40 AM EST | Winter Weather Advisory | MRX | 27 hr |
| Jan 9, 3:22 AM EST | Wind Advisory | MRX | 28 hr |
| Jan 9, 9:01 PM EST | High Wind Watch | MRX | 18 hr |
| Jan 10, 2:39 PM EST | High Wind Warning | MRX | 34 hr |
| Jan 11, 6:36 PM EST | Mesoscale Discussion | SPC | 84 min |
| Jan 11, 7:16 PM EST | Severe Thunderstorm Warning | MRX | 44 min |
| Jan 18, 3:10 AM EST | Wind Advisory | MRX | 22 hr |
| Jan 22, 3:28 PM EST | High Wind Watch | MRX | 12 hr |
| Jan 23, 3:12 AM EST | High Wind Warning | MRX | 37 hr |
| Jan 27, 3:20 AM EST | Winter Weather Advisory | MRX | 24 hr |
| Feb 4, 3:46 PM EST | Flash Flood Watch | MRX | 47 hr |
| Feb 5, 2:42 PM EST | Wind Advisory | MRX | 18 hr |
| Feb 6, 12:32 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Feb 6, 3:57 AM EST | Areal Flood Warning | MRX | 15 hr |
| Feb 6, 3:21 PM EST | Winter Weather Advisory | MRX | 24 hr |
| Feb 6, 6:34 PM EST | Areal Flood Warning | MRX | 18 hr |
| Feb 7, 3:28 AM EST | Wind Advisory | MRX | 15 hr |
| Feb 7, 2:57 PM EST | Winter Weather Advisory | MRX | 25 hr |
| Feb 11, 3:11 PM EST | High Wind Warning | MRX | 36 hr |
| Feb 19, 11:44 AM EST | Winter Weather Advisory | MRX | 34 hr |
| Feb 26, 3:31 AM EST | Winter Weather Advisory | MRX | 30 hr |
| Feb 27, 3:05 PM EST | Winter Weather Advisory | MRX | 44 hr |
| Mar 3, 5:54 AM EST | Special Weather Statement | MRX | 51 min |
| Mar 3, 7:52 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Mar 5, 3:21 PM EST | Winter Weather Advisory | MRX | 36 hr |
| Mar 18, 3:59 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| Mar 29, 7:06 AM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Apr 8, 11:16 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 3:50 AM EDT | Special Weather Statement | MRX | 40 min |
| Apr 10, 3:32 PM EDT | High Wind Watch | MRX | 24 hr |
| Apr 11, 3:05 PM EDT | High Wind Warning | MRX | 40 hr |
| Apr 11, 9:32 PM EDT | Wind Advisory | MRX | 42 hr |
| Apr 13, 2:03 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Apr 13, 4:09 AM EDT | Flash Flood Warning | MRX | 3 hr |
| Apr 13, 7:13 AM EDT | Areal Flood Warning | MRX | 2 hr |
| Apr 13, 9:14 AM EDT | Areal Flood Warning | MRX | 6 hr |
| Apr 21, 2:35 AM EDT | Wind Advisory | MRX | 19 hr |
| Apr 21, 3:21 AM EDT | Frost Advisory | MRX | 31 hr |
| Apr 22, 3:16 PM EDT | High Wind Warning | MRX | 29 hr |
| Apr 23, 7:54 PM EDT | Wind Advisory | MRX | 6 hr |
| Apr 25, 11:09 PM EDT | Special Weather Statement | MRX | 66 min |
| Apr 28, 2:58 PM EDT | Wind Advisory | MRX | 31 hr |
| Apr 29, 6:32 PM EDT | Areal Flood Advisory | MRX | 4 hr |
| Apr 29, 7:16 PM EDT | Special Weather Statement | MRX | 74 min |
| Apr 29, 10:27 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| May 6, 3:30 PM EDT | Frost Advisory | MRX | 18 hr |
| May 7, 3:51 AM EDT | Freeze Watch | MRX | 24 hr |
| May 8, 3:56 AM EDT | Freeze Warning | MRX | 30 hr |
| May 9, 3:26 AM EDT | Freeze Warning | MRX | 31 hr |
| May 11, 2:56 AM EDT | Frost Advisory | MRX | 29 hr |
| May 19, 3:01 AM EDT | Wind Advisory | MRX | 24 hr |
| May 20, 3:46 PM EDT | Flash Flood Watch | MRX | 11 hr |
| May 23, 2:58 AM EDT | Dense Fog Advisory | MRX | 7 hr |
| May 24, 1:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 4:30 PM EDT | Severe Thunderstorm Warning | MRX | 30 min |
| Jun 4, 5:00 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jun 14, 12:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 14, 1:56 PM EDT | Special Weather Statement | MRX | 49 min |
| Jun 14, 2:25 PM EDT | Special Weather Statement | MRX | 50 min |
| Jun 19, 4:12 PM EDT | Special Weather Statement | MRX | 48 min |
| Jun 21, 8:24 PM EDT | Special Weather Statement | MRX | 51 min |
| Jun 30, 2:45 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 5, 2:04 PM EDT | Special Weather Statement | MRX | 41 min |
| Jul 5, 2:34 PM EDT | Areal Flood Advisory | MRX | 116 min |
| Jul 17, 1:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 4:42 PM EDT | Special Weather Statement | MRX | 48 min |
| Jul 18, 5:25 PM EDT | Special Weather Statement | MRX | 50 min |
| Jul 19, 5:16 PM EDT | Special Weather Statement | MRX | 44 min |
| Jul 19, 6:01 PM EDT | Special Weather Statement | MRX | 14 min |
| Jul 20, 12:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 9:31 PM EDT | Special Weather Statement | MRX | 44 min |
| Jul 21, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 1:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 5:40 PM EDT | Special Weather Statement | MRX | 50 min |
| Jul 23, 6:27 PM EDT | Special Weather Statement | MRX | 33 min |
| Jul 24, 6:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 24, 6:44 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Jul 31, 7:43 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 31, 7:52 PM EDT | Severe Thunderstorm Warning | MRX | 38 min |
| Aug 2, 2:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 5, 1:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 12, 2:16 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 15, 2:26 PM EDT | Special Weather Statement | RNK | 34 min |
| Aug 23, 8:06 PM EDT | Areal Flood Advisory | MRX | 114 min |
| Aug 28, 4:47 PM EDT | Special Weather Statement | MRX | 43 min |
| Aug 28, 7:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 28, 9:36 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Oct 2, 3:07 PM EDT | Frost Advisory | MRX | 18 hr |
| Oct 15, 3:22 PM EDT | Freeze Watch | MRX | 24 hr |
| Oct 16, 3:10 PM EDT | Freeze Warning | MRX | 19 hr |
| Oct 28, 3:52 AM EDT | Flash Flood Watch | MRX | 30 hr |
| Oct 28, 10:47 AM EDT | High Wind Watch | MRX | 5 hr |
| Oct 28, 3:24 PM EDT | High Wind Warning | MRX | 21 hr |
| Oct 30, 3:18 PM EDT | Frost Advisory | MRX | 18 hr |
| Oct 30, 3:18 PM EDT | Freeze Watch | MRX | 37 hr |
| Nov 1, 3:16 AM EST | Freeze Warning | MRX | 30 hr |
| Nov 11, 2:05 PM EST | Flood Watch | MRX | 15 hr |
| Nov 12, 1:14 AM EST | Areal Flood Advisory | MRX | 3 hr |
| Nov 12, 3:16 AM EST | Areal Flood Warning | MRX | 2 hr |
| Nov 14, 4:04 AM EST | Wind Advisory | MRX | 39 hr |
| Nov 24, 5:21 PM EST | Wind Advisory | MRX | 32 hr |
| Nov 28, 3:48 AM EST | High Wind Watch | MRX | 24 hr |
| Nov 29, 3:46 AM EST | Wind Advisory | MRX | 23 hr |
| Nov 29, 3:55 PM EST | Winter Weather Advisory | MRX | 44 hr |
| Dec 6, 2:33 AM EST | Freezing Fog Advisory | MRX | 7 hr |
| Dec 15, 2:55 PM EST | Winter Weather Advisory | MRX | 21 hr |
| Dec 22, 3:38 AM EST | High Wind Watch | MRX | 24 hr |
| Dec 23, 3:40 AM EST | High Wind Warning | MRX | 30 hr |
| Dec 23, 3:49 AM EST | Winter Storm Watch | MRX | 10 hr |
| Dec 23, 2:14 PM EST | Winter Storm Warning | MRX | 38 hr |
| Dec 24, 3:45 AM EST | Wind Chill Advisory | MRX | 53 hr |
| Dec 24, 2:28 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 25, 3:48 AM EST | Winter Weather Advisory | MRX | 11 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.