Alert archive / Tennessee / Lawrence County
Weather alerts in Lawrence County, Tennessee, 2020
177 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lawrence County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 177
- Warnings
- 36
- Watches
- 23
- Advisories
- 62
- Busiest month
- March26 alerts
- Busiest day
- March 24, 202010 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Lawrence County in 2020 had a tornado report inside them; 0 of 3 tornado reports fell inside a warning.
Lawrence County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 3 | 0% | |
| Severe thunderstorm warnings | 25 | 20 | 20% | 46 | 85% | 18 min |
| Flash flood warnings | 6 | 4 | 33% | 7 | 57% | 105 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 28 | 5 | 82% | 22 | 23% | 8 min |
| NWS Nashville, TN: severe thunderstorm warnings | 172 | 115 | 33% | 362 | 82% | 18 min |
| NWS Nashville, TN: flash flood warnings | 35 | 21 | 40% | 65 | 78% | 77 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 3, 4:46 AM CST | River Flood Advisory | OHX | 11 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, 7:37 AM CST | Severe Thunderstorm Warning | OHX | 38 min |
| Jan 11, 8:06 AM CST | Severe Thunderstorm Warning | OHX | 39 min |
| Jan 11, 8:42 AM CST | Severe Thunderstorm Warning | OHX | 33 min |
| Jan 11, 9:07 AM CST | Flash Flood Warning | OHX | 3 hr |
| Jan 11, 9:11 AM CST | Severe Thunderstorm Warning | OHX | 34 min |
| Jan 11, 12:02 PM CST | Areal Flood Advisory | OHX | 5 hr |
| Jan 11, 4:09 PM CST | River Flood Advisory | OHX | 9 hr |
| Jan 12, 1:35 AM CST | River Flood Warning | OHX | 5 hr |
| Jan 12, 6:17 AM CST | River Flood Advisory | OHX | 4 hr |
| Jan 13, 7:38 PM CST | Severe Thunderstorm Warning | OHX | 37 min |
| Jan 14, 2:21 AM CST | Special Weather Statement | OHX | 39 min |
| Jan 14, 3:23 AM CST | Areal Flood Advisory | OHX | 112 min |
| Jan 14, 5:23 PM CST | River Flood Advisory | OHX | 7 hr |
| Jan 15, 3:11 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 15, 7:49 PM CST | Special Weather Statement | OHX | 26 min |
| Feb 5, 2:44 AM CST | Flood Watch | OHX | 32 hr |
| Feb 5, 3:36 AM CST | Special Weather Statement | OHX | 54 min |
| Feb 5, 4:25 PM CST | Tornado Watch | SPC | 5 hr |
| Feb 5, 5:02 PM CST | Special Weather Statement | OHX | 43 min |
| Feb 5, 5:21 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 5, 5:38 PM CST | Special Weather Statement | OHX | 52 min |
| Feb 5, 5:50 PM CST | Severe Thunderstorm Warning | OHX | 40 min |
| Feb 5, 8:15 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 5, 9:56 PM CST | Flash Flood Warning | OHX | 3 hr |
| Feb 5, 11:34 PM CST | River Flood Advisory | OHX | 5 hr |
| Feb 6, 4:26 AM CST | Areal Flood Advisory | OHX | 9 hr |
| Feb 6, 5:00 AM CST | River Flood Warning | OHX | 10 hr |
| Feb 6, 3:01 PM CST | River Flood Advisory | OHX | 6 hr |
| Feb 9, 3:00 AM CST | Flood Watch | OHX | 55 hr |
| Feb 10, 7:22 AM CST | Areal Flood Advisory | OHX | 6 hr |
| Feb 10, 1:18 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 11, 7:48 AM CST | River Flood Advisory | OHX | 20 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 12, 5:31 PM CST | Severe Thunderstorm Warning | OHX | 29 min |
| Feb 12, 11:46 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 13, 2:04 AM CST | River Flood Advisory | OHX | 12 hr |
| Feb 13, 5:18 PM CST | River Flood Advisory | OHX | 5 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 23, 4:27 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Mar 23, 12:15 PM CDT | River Flood Advisory | OHX | 10 hr |
| Mar 24, 3:12 AM CDT | Flash Flood Watch | OHX | 19 hr |
| Mar 24, 8:37 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Mar 24, 11:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 24, 2:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 24, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 24, 4:57 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Mar 24, 5:27 PM CDT | Tornado Warning | OHX | 33 min |
| Mar 24, 5:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 24, 5:42 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Mar 24, 5:52 PM CDT | Flash Flood Warning | OHX | 83 min |
| Mar 25, 2:20 AM CDT | River Flood Advisory | OHX | 16 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, 11:21 PM CDT | Severe Thunderstorm Warning | OHX | 24 min |
| Mar 28, 11:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 28, 11:57 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Mar 29, 12:12 AM CDT | Special Weather Statement | OHX | 48 min |
| Mar 29, 12:21 AM CDT | Severe Thunderstorm Warning | OHX | 24 min |
| Mar 29, 12:39 AM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| Mar 29, 12:52 AM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Mar 29, 12:55 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Apr 8, 3:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 8, 4:25 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Apr 8, 4:54 PM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| Apr 8, 5:27 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Apr 8, 5:42 PM CDT | Special Weather Statement | OHX | 33 min |
| Apr 8, 7:04 PM CDT | Tornado Watch | SPC | 7 hr |
| 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, 9:56 AM CDT | Special Weather Statement | OHX | 34 min |
| Apr 12, 10:36 AM CDT | Special Weather Statement | OHX | 24 min |
| Apr 12, 1:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 12, 3:20 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 12, 4:08 PM CDT | Special Weather Statement | OHX | 37 min |
| Apr 12, 4:10 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Apr 12, 11:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 12, 11:51 PM CDT | Special Weather Statement | OHX | 39 min |
| Apr 13, 12:17 AM CDT | River Flood Advisory | OHX | 13 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, 4:12 PM CDT | Severe Thunderstorm Warning | OHX | 48 min |
| May 3, 4:26 PM CDT | Severe Thunderstorm Warning | OHX | 19 min |
| May 3, 4:35 PM CDT | Severe Thunderstorm Warning | OHX | 40 min |
| May 3, 6:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 3, 7:15 PM CDT | Special Weather Statement | OHX | 45 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, 8:14 PM CDT | Severe Thunderstorm Warning | OHX | 46 min |
| May 4, 8:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 4, 8:24 PM CDT | Severe Thunderstorm Warning | OHX | 51 min |
| May 4, 8:36 PM CDT | Severe Thunderstorm Warning | OHX | 54 min |
| May 8, 3:06 AM CDT | Frost Advisory | 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, 6:30 AM CDT | Special Weather Statement | OHX | 45 min |
| May 22, 4:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 22, 7:22 PM CDT | Special Weather Statement | OHX | 53 min |
| Jun 3, 3:19 PM CDT | Special Weather Statement | OHX | 26 min |
| Jun 4, 10:13 PM CDT | Special Weather Statement | OHX | 32 min |
| Jun 29, 1:38 PM CDT | Special Weather Statement | OHX | 37 min |
| Jun 30, 4:07 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Jun 30, 5:19 PM CDT | Special Weather Statement | OHX | 41 min |
| Jul 1, 2:13 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 5, 4:28 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Jul 8, 4:33 PM CDT | Areal Flood Advisory | OHX | 117 min |
| Jul 12, 6:55 AM CDT | Special Weather Statement | OHX | 65 min |
| Jul 12, 7:45 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 12, 7:59 AM CDT | Special Weather Statement | OHX | 46 min |
| Jul 20, 8:33 PM CDT | Special Weather Statement | OHX | 42 min |
| Jul 20, 8:46 PM CDT | Severe Thunderstorm Warning | OHX | 44 min |
| Jul 21, 12:59 PM CDT | Special Weather Statement | OHX | 46 min |
| Jul 21, 6:37 PM CDT | Special Weather Statement | OHX | 38 min |
| Jul 23, 1:58 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Jul 28, 2:39 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Aug 10, 1:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 11, 1:04 PM CDT | Special Weather Statement | OHX | 41 min |
| Aug 11, 1:47 PM CDT | Special Weather Statement | OHX | 43 min |
| Aug 11, 1:48 PM CDT | Areal Flood Advisory | OHX | 117 min |
| Aug 11, 2:18 PM CDT | Flash Flood Warning | OHX | 86 min |
| Aug 11, 2:32 PM CDT | Special Weather Statement | OHX | 43 min |
| Aug 15, 3:49 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Aug 16, 4:03 PM CDT | Special Weather Statement | OHX | 27 min |
| Aug 18, 6:28 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Aug 21, 3:20 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Aug 23, 2:17 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| Aug 27, 4:30 PM CDT | Special Weather Statement | OHX | 45 min |
| Aug 27, 4:40 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Aug 27, 5:09 PM CDT | Severe Thunderstorm Warning | OHX | 36 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, 11:52 AM CDT | Special Weather Statement | OHX | 38 min |
| Aug 28, 12:24 PM CDT | Special Weather Statement | OHX | 51 min |
| Aug 28, 3:09 PM CDT | Special Weather Statement | OHX | 36 min |
| Aug 28, 3:44 PM CDT | Special Weather Statement | OHX | 31 min |
| Aug 28, 3:46 PM CDT | Tornado Watch | SPC | 4 hr |
| Aug 28, 3:49 PM CDT | Areal Flood Advisory | OHX | 101 min |
| Aug 30, 2:47 PM CDT | Special Weather Statement | OHX | 28 min |
| Aug 30, 3:15 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 1, 3:36 PM CDT | Special Weather Statement | OHX | 39 min |
| Sep 1, 3:52 PM CDT | Areal Flood Advisory | OHX | 113 min |
| Sep 13, 4:07 AM CDT | Flash Flood Watch | OHX | 13 hr |
| Sep 13, 9:51 AM CDT | Flash Flood Warning | OHX | 8 hr |
| Sep 13, 11:50 AM CDT | Areal Flood Advisory | OHX | 4 hr |
| Sep 13, 3:09 PM CDT | Areal Flood Advisory | OHX | 4 hr |
| Sep 13, 11:51 PM CDT | Dense Fog Advisory | OHX | 9 hr |
| Sep 14, 3:37 AM CDT | River Flood Advisory | OHX | 9 hr |
| Sep 23, 2:45 PM CDT | Flood Watch | OHX | 31 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 28, 10:15 AM CDT | Flash Flood Watch | OHX | 19 hr |
| Oct 28, 10:51 AM CDT | Areal Flood Advisory | OHX | 4 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 6, 1:40 AM CST | Freezing Fog Advisory | OHX | 7 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 | 25 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 35 |
| Flooding | |
| Flash Flood Warning | 6 |
| River Flood Warning | 2 |
| Flash Flood Watch | 7 |
| Flood Watch | 4 |
| Areal Flood Advisory | 27 |
| River Flood Advisory | 13 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| Freezing Fog Advisory | 2 |
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. Warning verification from the Mesonet's Cow. Rebuilt daily.