Alert archive / Tennessee / Lawrence County
Weather alerts in Lawrence County, Tennessee, 2015
100 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 100
- Warnings
- 26
- Watches
- 16
- Advisories
- 23
- Busiest month
- December19 alerts
- Busiest day
- December 24, 20157 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 4 tornado warnings covering Lawrence County in 2015 had a tornado report inside them.
Lawrence County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 8 | 4 | 50% | 14 | 14% | 34 min |
| Flash flood warnings | 3 | 1 | 67% | 1 | 100% | 6 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 28 | 6 | 79% | 20 | 50% | 9 min |
| NWS Nashville, TN: severe thunderstorm warnings | 171 | 89 | 48% | 318 | 70% | 17 min |
| NWS Nashville, TN: flash flood warnings | 20 | 12 | 40% | 35 | 71% | 59 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 3, 3:08 AM CST | Flash Flood Watch | OHX | 18 hr |
| Jan 7, 2:41 AM CST | Wind Chill Advisory | OHX | 30 hr |
| Feb 14, 10:03 AM CST | Wind Chill Advisory | OHX | 23 hr |
| Feb 14, 10:03 AM CST | Winter Storm Watch | OHX | 17 hr |
| Feb 15, 3:11 AM CST | Winter Storm Warning | OHX | 35 hr |
| Feb 16, 2:57 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 8:54 AM CST | Ice Storm Warning | OHX | 24 hr |
| Feb 16, 9:09 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 16, 2:53 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 17, 3:40 PM CST | Winter Weather Advisory | OHX | 26 hr |
| Feb 18, 8:43 AM CST | Wind Chill Advisory | OHX | 27 hr |
| Feb 18, 2:54 PM CST | Winter Storm Watch | OHX | 23 hr |
| Feb 19, 1:33 PM CST | Winter Storm Warning | OHX | 15 hr |
| Feb 20, 4:05 AM CST | Ice Storm Warning | OHX | 29 hr |
| Feb 20, 3:00 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 21, 8:59 AM CST | Areal Flood Advisory | OHX | 39 days |
| Feb 24, 2:16 PM CST | Winter Storm Warning | OHX | 37 hr |
| Mar 2, 2:34 PM CST | Winter Storm Watch | OHX | 25 hr |
| Mar 3, 3:14 PM CST | Winter Storm Warning | OHX | 45 hr |
| Mar 3, 3:14 PM CST | Winter Weather Advisory | OHX | 20 hr |
| Mar 4, 11:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 12, 3:12 AM CDT | Flood Watch | OHX | 47 hr |
| Mar 26, 12:41 PM CDT | Freeze Watch | OHX | 15 hr |
| Mar 27, 3:50 AM CDT | Hard Freeze Watch | OHX | 24 hr |
| Mar 27, 3:50 AM CDT | Hard Freeze Warning | OHX | 30 hr |
| Mar 28, 3:48 AM CDT | Hard Freeze Warning | OHX | 30 hr |
| Mar 31, 5:17 PM CDT | Special Weather Statement | OHX | 43 min |
| Mar 31, 5:53 PM CDT | Severe Thunderstorm Warning | OHX | 49 min |
| Mar 31, 6:53 PM CDT | Severe Thunderstorm Warning | OHX | 37 min |
| Mar 31, 7:26 PM CDT | Severe Thunderstorm Warning | OHX | 18 min |
| Mar 31, 7:32 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Mar 31, 7:51 PM CDT | Severe Thunderstorm Warning | OHX | 24 min |
| Apr 2, 1:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 3, 3:47 AM CDT | Wind Advisory | OHX | 18 hr |
| Apr 3, 12:14 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 3, 3:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 4, 2:41 AM CDT | Frost Advisory | OHX | 29 hr |
| Apr 10, 12:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 1:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 19, 1:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 12:34 AM CDT | Severe Thunderstorm Warning | OHX | 26 min |
| Apr 20, 12:45 AM CDT | Mesoscale Discussion | SPC | 90 min |
| May 11, 6:04 PM CDT | Special Weather Statement | OHX | 41 min |
| May 24, 6:14 PM CDT | Special Weather Statement | OHX | 46 min |
| Jun 8, 12:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 8, 12:57 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 8, 2:59 PM CDT | Special Weather Statement | OHX | 31 min |
| Jun 8, 3:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 3:31 PM CDT | Special Weather Statement | OHX | 29 min |
| Jun 9, 5:01 AM CDT | Dense Fog Advisory | OHX | 3 hr |
| Jun 17, 8:07 PM CDT | Special Weather Statement | OHX | 38 min |
| Jun 23, 10:35 PM CDT | Special Weather Statement | OHX | 40 min |
| Jun 25, 3:12 AM CDT | Heat Advisory | OHX | 16 hr |
| Jun 26, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 26, 6:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 29, 7:27 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Jun 30, 12:46 AM CDT | Special Weather Statement | OHX | 59 min |
| Jul 1, 11:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 1, 11:45 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 5:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 14, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 2:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 14, 3:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 14, 5:04 PM CDT | Special Weather Statement | OHX | 56 min |
| Jul 14, 5:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 4:00 AM CDT | Heat Advisory | OHX | 63 hr |
| Jul 20, 5:21 PM CDT | Special Weather Statement | OHX | 39 min |
| Jul 28, 11:26 AM CDT | Heat Advisory | OHX | 8 hr |
| Jul 29, 3:39 AM CDT | Heat Advisory | OHX | 15 hr |
| Aug 6, 9:02 AM CDT | Special Weather Statement | OHX | 43 min |
| Aug 16, 7:49 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Aug 19, 12:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 22, 2:18 PM CDT | Areal Flood Advisory | OHX | 117 min |
| Sep 9, 1:48 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Sep 9, 4:50 PM CDT | Flash Flood Warning | OHX | 115 min |
| Oct 17, 1:57 AM CDT | Frost Advisory | OHX | 31 hr |
| Oct 18, 2:03 AM CDT | Frost Advisory | OHX | 30 hr |
| Nov 3, 12:18 AM CST | Dense Fog Advisory | OHX | 11 hr |
| Nov 12, 1:16 PM CST | Freeze Watch | OHX | 14 hr |
| Nov 13, 3:29 AM CST | Freeze Warning | OHX | 30 hr |
| Nov 17, 3:37 AM CST | Wind Advisory | OHX | 32 hr |
| Dec 9, 10:00 PM CST | Dense Fog Advisory | OHX | 10 hr |
| Dec 13, 2:34 AM CST | Wind Advisory | OHX | 27 hr |
| Dec 23, 2:49 PM CST | Mesoscale Discussion | SPC | 86 min |
| Dec 23, 4:26 PM CST | Mesoscale Discussion | SPC | 64 min |
| Dec 23, 4:49 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 23, 6:35 PM CST | Mesoscale Discussion | SPC | 55 min |
| Dec 23, 7:08 PM CST | Tornado Warning | OHX | 37 min |
| Dec 23, 7:30 PM CST | Tornado Warning | OHX | 30 min |
| Dec 23, 7:33 PM CST | Tornado Warning | OHX | 27 min |
| Dec 23, 7:58 PM CST | Tornado Warning | OHX | 32 min |
| Dec 23, 8:44 PM CST | Severe Thunderstorm Warning | OHX | 17 min |
| Dec 23, 9:15 PM CST | Flash Flood Warning | OHX | 3 hr |
| Dec 24, 8:47 PM CST | Flood Watch | OHX | 33 hr |
| Dec 25, 2:28 PM CST | Areal Flood Warning | OHX | 3 hr |
| Dec 25, 5:29 PM CST | Areal Flood Warning | OHX | 3 hr |
| Dec 25, 9:26 PM CST | River Flood Advisory | OHX | 10 hr |
| Dec 27, 1:04 PM CST | Flash Flood Watch | OHX | 29 hr |
| Dec 28, 1:30 AM CST | Wind Advisory | OHX | 17 hr |
| Dec 28, 8:38 AM CST | Mesoscale Discussion | SPC | 67 min |
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 archive20142016
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.