Alert archive / Tennessee / Williamson County
Weather alerts in Williamson County, Tennessee, 2020
154 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Williamson County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 154
- Warnings
- 37
- Watches
- 19
- Advisories
- 49
- Busiest month
- May21 alerts
- Busiest day
- January 11, 202010 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 2:18 AM CST | Flood Watch | OHX | 58 hr |
| Jan 2, 3:55 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Jan 10, 3:34 AM CST | Wind Advisory | OHX | 36 hr |
| Jan 11, 6:12 AM CST | Mesoscale Discussion | SPC | 93 min |
| Jan 11, 6:57 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 11, 7:42 AM CST | Severe Thunderstorm Warning | OHX | 48 min |
| Jan 11, 8:25 AM CST | Severe Thunderstorm Warning | OHX | 22 min |
| Jan 11, 8:53 AM CST | Severe Thunderstorm Warning | OHX | 37 min |
| Jan 11, 9:11 AM CST | Severe Thunderstorm Warning | OHX | 34 min |
| Jan 11, 9:22 AM CST | Severe Thunderstorm Warning | OHX | 38 min |
| Jan 11, 9:28 AM CST | Mesoscale Discussion | SPC | 92 min |
| Jan 11, 9:43 AM CST | Severe Thunderstorm Warning | OHX | 32 min |
| Jan 11, 5:36 PM CST | Special Weather Statement | OHX | 39 min |
| Jan 13, 8:34 PM CST | Special Weather Statement | OHX | 26 min |
| Jan 14, 1:00 AM CST | Special Weather Statement | OHX | 45 min |
| Jan 14, 1:13 AM CST | Severe Thunderstorm Warning | OHX | 15 min |
| Jan 15, 3:11 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 5, 2:44 AM CST | Flood Watch | OHX | 32 hr |
| Feb 5, 6:07 PM CST | Areal Flood Advisory | OHX | 6 hr |
| Feb 6, 10:31 AM CST | River Flood Advisory | OHX | 18 hr |
| Feb 6, 11:24 AM CST | River Flood Advisory | OHX | 28 hr |
| Feb 6, 1:28 PM CST | River Flood Advisory | OHX | 22 hr |
| Feb 6, 2:25 PM CST | Winter Weather Advisory | OHX | 22 hr |
| Feb 9, 3:00 AM CST | Flood Watch | OHX | 55 hr |
| Feb 11, 11:34 AM CST | Flash Flood Watch | OHX | 42 hr |
| Feb 12, 4:50 PM CST | Special Weather Statement | OHX | 40 min |
| Feb 13, 3:58 AM CST | River Flood Advisory | OHX | 29 hr |
| Feb 13, 3:28 PM CST | River Flood Advisory | OHX | 36 hr |
| Feb 13, 3:28 PM CST | River Flood Advisory | OHX | 36 hr |
| Mar 2, 11:10 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 2, 11:22 PM CST | Tornado Watch | SPC | 7 hr |
| Mar 3, 2:34 AM CST | Mesoscale Discussion | SPC | 116 min |
| Mar 18, 3:01 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| Mar 20, 12:57 PM CDT | Flash Flood Watch | OHX | 7 hr |
| Mar 24, 11:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 24, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 24, 5:49 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Mar 28, 8:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Mar 28, 9:34 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 28, 11:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 28, 11:39 PM CDT | Special Weather Statement | OHX | 36 min |
| Mar 28, 11:57 PM CDT | Severe Thunderstorm Warning | OHX | 13 min |
| Apr 8, 7:04 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 8, 9:41 PM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Apr 8, 10:17 PM CDT | Special Weather Statement | OHX | 43 min |
| Apr 8, 10:56 PM CDT | Special Weather Statement | OHX | 49 min |
| Apr 10, 10:32 AM CDT | Frost Advisory | OHX | 21 hr |
| Apr 11, 9:03 PM CDT | Flash Flood Watch | OHX | 34 hr |
| Apr 11, 9:10 PM CDT | Wind Advisory | OHX | 37 hr |
| Apr 12, 4:34 PM CDT | Special Weather Statement | OHX | 41 min |
| Apr 12, 4:41 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Apr 12, 4:53 PM CDT | Severe Thunderstorm Warning | OHX | 22 min |
| Apr 13, 4:58 AM CDT | River Flood Advisory | OHX | 14 hr |
| Apr 13, 5:17 PM CDT | Freeze Watch | OHX | 20 hr |
| Apr 14, 1:32 PM CDT | Freeze Warning | OHX | 19 hr |
| Apr 15, 3:38 AM CDT | Freezing Fog Advisory | OHX | 5 hr |
| Apr 15, 2:21 PM CDT | Frost Advisory | OHX | 18 hr |
| Apr 23, 4:20 AM CDT | Wind Advisory | OHX | 11 hr |
| Apr 27, 3:09 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| May 3, 3:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 3, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 3, 3:54 PM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| May 3, 4:17 PM CDT | Severe Thunderstorm Warning | OHX | 43 min |
| May 3, 4:41 PM CDT | Severe Thunderstorm Warning | OHX | 49 min |
| May 3, 6:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 4, 2:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 4, 6:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 4, 6:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 7:45 PM CDT | Special Weather Statement | OHX | 45 min |
| May 4, 8:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 4, 9:35 PM CDT | High Wind Warning | OHX | 113 min |
| May 8, 3:06 AM CDT | Freeze Warning | OHX | 29 hr |
| May 9, 3:13 AM CDT | Frost Advisory | OHX | 29 hr |
| May 20, 3:50 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| May 22, 6:44 PM CDT | Special Weather Statement | OHX | 46 min |
| May 22, 7:06 PM CDT | Severe Thunderstorm Warning | OHX | 39 min |
| May 22, 7:25 PM CDT | Special Weather Statement | OHX | 65 min |
| May 25, 2:46 PM CDT | Special Weather Statement | OHX | 29 min |
| May 25, 3:26 PM CDT | Special Weather Statement | OHX | 49 min |
| May 28, 7:11 PM CDT | Special Weather Statement | OHX | 49 min |
| Jun 14, 11:56 AM CDT | Special Weather Statement | OHX | 49 min |
| Jun 14, 12:12 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Jun 24, 8:49 PM CDT | Areal Flood Advisory | OHX | 90 min |
| Jun 29, 2:32 PM CDT | Special Weather Statement | OHX | 28 min |
| Jun 29, 2:53 PM CDT | Special Weather Statement | OHX | 37 min |
| Jun 29, 3:36 PM CDT | Areal Flood Advisory | OHX | 114 min |
| Jun 30, 10:31 PM CDT | Special Weather Statement | OHX | 29 min |
| Jul 4, 7:53 PM CDT | Special Weather Statement | OHX | 52 min |
| Jul 4, 8:57 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 4, 9:20 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Jul 4, 9:21 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Jul 8, 6:57 PM CDT | Special Weather Statement | OHX | 33 min |
| Jul 12, 4:14 AM CDT | Severe Thunderstorm Warning | OHX | 31 min |
| Jul 12, 5:50 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 19, 2:23 AM CDT | Heat Advisory | OHX | 16 hr |
| Jul 21, 3:14 PM CDT | Special Weather Statement | OHX | 31 min |
| Jul 21, 3:42 PM CDT | Severe Thunderstorm Warning | OHX | 20 min |
| Jul 21, 8:20 PM CDT | Special Weather Statement | OHX | 25 min |
| Jul 21, 8:52 PM CDT | Special Weather Statement | OHX | 23 min |
| Jul 25, 7:09 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Jul 29, 3:16 PM CDT | Areal Flood Advisory | OHX | 119 min |
| Jul 31, 12:20 AM CDT | Special Weather Statement | OHX | 25 min |
| Jul 31, 1:16 AM CDT | Special Weather Statement | OHX | 44 min |
| Jul 31, 2:00 AM CDT | Special Weather Statement | OHX | 45 min |
| Jul 31, 12:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Aug 10, 1:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 14, 7:46 PM CDT | Areal Flood Advisory | OHX | 89 min |
| Aug 15, 3:49 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Aug 21, 6:53 PM CDT | Areal Flood Advisory | OHX | 52 min |
| Aug 21, 7:46 PM CDT | Special Weather Statement | OHX | 29 min |
| Aug 23, 2:17 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| Aug 27, 4:48 PM CDT | Special Weather Statement | OHX | 42 min |
| Aug 28, 2:14 AM CDT | Flash Flood Watch | OHX | 20 hr |
| Aug 28, 10:09 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 28, 10:31 AM CDT | Tornado Watch | SPC | 5 hr |
| Aug 28, 11:45 AM CDT | Severe Thunderstorm Warning | OHX | 30 min |
| Aug 28, 12:01 PM CDT | Tornado Warning | OHX | 14 min |
| Aug 28, 12:13 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Aug 28, 12:14 PM CDT | Tornado Warning | OHX | 17 min |
| Aug 28, 12:54 PM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| Aug 28, 1:22 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Aug 28, 3:44 PM CDT | Special Weather Statement | OHX | 31 min |
| Aug 29, 3:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 30, 3:15 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 31, 5:44 PM CDT | Special Weather Statement | OHX | 46 min |
| Sep 1, 4:22 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Sep 1, 4:28 PM CDT | Tornado Warning | OHX | 32 min |
| Sep 1, 4:57 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Sep 1, 5:16 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Sep 1, 5:27 PM CDT | Flash Flood Warning | OHX | 4 hr |
| Sep 1, 5:53 PM CDT | Flash Flood Warning | OHX | 4 hr |
| Sep 12, 1:28 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Sep 13, 4:07 AM CDT | Flash Flood Watch | OHX | 13 hr |
| Sep 13, 7:00 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Sep 13, 7:32 AM CDT | Flash Flood Warning | OHX | 6 hr |
| Sep 13, 7:37 AM CDT | Areal Flood Advisory | OHX | 113 min |
| Sep 13, 10:29 AM CDT | Flash Flood Warning | OHX | 7 hr |
| Sep 13, 11:51 PM CDT | Dense Fog Advisory | OHX | 9 hr |
| Sep 26, 2:21 AM CDT | Dense Fog Advisory | OHX | 7 hr |
| Sep 28, 11:52 PM CDT | Dense Fog Advisory | OHX | 9 hr |
| Oct 12, 3:41 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| Oct 16, 9:50 AM CDT | Frost Advisory | OHX | 22 hr |
| Oct 23, 1:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 23, 6:06 PM CDT | Severe Thunderstorm Warning | OHX | 24 min |
| Oct 28, 10:15 AM CDT | Flash Flood Watch | OHX | 19 hr |
| Oct 30, 2:21 PM CDT | Freeze Watch | OHX | 36 hr |
| Nov 1, 1:18 AM CST | Freeze Warning | OHX | 31 hr |
| Nov 14, 2:39 PM CST | Wind Advisory | OHX | 27 hr |
| Nov 24, 8:23 PM CST | Wind Advisory | OHX | 19 hr |
| Nov 27, 1:37 AM CST | Dense Fog Advisory | OHX | 8 hr |
| Dec 5, 2:06 AM CST | Freezing Fog Advisory | OHX | 7 hr |
| Dec 6, 1:40 AM CST | Freezing Fog Advisory | OHX | 7 hr |
| Dec 20, 8:14 PM CST | Dense Fog Advisory | OHX | 8 hr |
| Dec 23, 1:46 PM CST | Wind Advisory | OHX | 10 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 | 24 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 19 |
| Special Weather Statement | 30 |
| Flooding | |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 6 |
| Flood Watch | 3 |
| Areal Flood Advisory | 16 |
| River Flood Advisory | 7 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
| Freezing Fog Advisory | 3 |
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.