Alert archive / Mississippi / Lawrence County
Weather alerts in Lawrence County, Mississippi, 2015
132 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
- 132
- Warnings
- 43
- Watches
- 20
- Advisories
- 18
- Busiest month
- May21 alerts
- Busiest day
- January 3, 20158 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Lawrence County in 2015 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 9 minutes after it went out.
Lawrence County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 2 | 100% | 9 min |
| Severe thunderstorm warnings | 25 | 15 | 40% | 16 | 94% | 21 min |
| Flash flood warnings | 7 | 3 | 57% | 3 | 100% | 78 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 53 | 18 | 66% | 67 | 81% | 17 min |
| NWS Jackson, MS: severe thunderstorm warnings | 441 | 223 | 49% | 526 | 75% | 22 min |
| NWS Jackson, MS: flash flood warnings | 95 | 42 | 56% | 113 | 76% | 67 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 2, 3:01 PM CST | Flash Flood Watch | JAN | 33 hr |
| Jan 3, 10:24 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 3, 11:02 AM CST | River Flood Warning | JAN | 70 hr |
| Jan 3, 11:04 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 3, 1:23 PM CST | Severe Thunderstorm Warning | JAN | 67 min |
| Jan 3, 1:43 PM CST | Mesoscale Discussion | SPC | 92 min |
| Jan 3, 1:56 PM CST | Tornado Warning | JAN | 37 min |
| Jan 3, 2:21 PM CST | Flash Flood Warning | JAN | 114 min |
| Jan 3, 4:20 PM CST | Flash Flood Warning | JAN | 3 hr |
| Jan 3, 8:43 PM CST | Areal Flood Warning | JAN | 10 hr |
| Jan 6, 5:05 AM CST | Hard Freeze Watch | JAN | 22 hr |
| Jan 6, 3:14 PM CST | Hard Freeze Warning | JAN | 51 hr |
| Jan 7, 3:23 AM CST | Wind Chill Advisory | JAN | 30 hr |
| Jan 7, 2:49 PM CST | Wind Advisory | JAN | 3 hr |
| Jan 8, 9:59 PM CST | Winter Weather Advisory | JAN | 14 hr |
| Jan 9, 11:52 AM CST | Winter Weather Advisory | JAN | 2 hr |
| Feb 1, 6:20 PM CST | Special Weather Statement | JAN | 60 min |
| Feb 16, 1:46 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 2, 1:54 AM CST | Dense Fog Advisory | JAN | 8 hr |
| Mar 2, 12:54 PM CST | River Flood Warning | JAN | 5 days |
| Mar 2, 2:39 PM CST | Dense Fog Advisory | JAN | 18 hr |
| Mar 9, 10:58 AM CDT | River Flood Warning | JAN | 9 days |
| Mar 10, 12:37 PM CDT | Flash Flood Watch | JAN | 8 hr |
| Mar 11, 3:29 PM CDT | Flash Flood Watch | JAN | 47 hr |
| Mar 15, 5:03 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| Mar 26, 2:48 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 1:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 15, 6:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 6:36 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Apr 15, 7:10 PM CDT | Severe Thunderstorm Warning | JAN | 65 min |
| Apr 15, 7:17 PM CDT | Severe Thunderstorm Warning | JAN | 43 min |
| Apr 18, 6:17 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 2:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 19, 8:02 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 19, 10:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Apr 25, 9:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 25, 10:41 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 27, 9:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| May 11, 12:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 1:36 PM CDT | Severe Thunderstorm Warning | JAN | 23 min |
| May 11, 1:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 2:00 PM CDT | Special Weather Statement | JAN | 30 min |
| May 11, 2:33 PM CDT | Special Weather Statement | JAN | 27 min |
| May 15, 12:43 PM CDT | Special Weather Statement | JAN | 32 min |
| May 18, 3:48 AM CDT | Flash Flood Watch | JAN | 11 hr |
| May 19, 5:32 AM CDT | Dense Fog Advisory | JAN | 3 hr |
| May 20, 1:35 PM CDT | Special Weather Statement | JAN | 25 min |
| May 24, 1:49 PM CDT | Tornado Watch | SPC | 8 hr |
| May 24, 5:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 24, 7:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 25, 2:15 PM CDT | Special Weather Statement | JAN | 45 min |
| May 25, 10:37 PM CDT | Tornado Watch | SPC | 6 hr |
| May 27, 11:51 AM CDT | Mesoscale Discussion | SPC | 54 min |
| May 27, 11:52 AM CDT | Special Weather Statement | JAN | 38 min |
| May 27, 12:26 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| May 27, 12:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 30, 4:33 PM CDT | Severe Thunderstorm Warning | JAN | 19 min |
| May 30, 5:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 30, 5:49 PM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| Jun 1, 4:09 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| Jun 9, 5:26 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Jun 9, 5:54 AM CDT | Special Weather Statement | JAN | 36 min |
| Jun 9, 6:23 AM CDT | Flash Flood Warning | JAN | 2 hr |
| Jun 9, 7:43 AM CDT | Flash Flood Warning | JAN | 2 hr |
| Jun 9, 8:27 AM CDT | Areal Flood Warning | JAN | 3 hr |
| Jun 24, 1:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 24, 2:26 PM CDT | Severe Thunderstorm Warning | JAN | 64 min |
| Jun 30, 11:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 4, 1:30 PM CDT | Special Weather Statement | JAN | 45 min |
| Jul 4, 1:54 PM CDT | Severe Thunderstorm Warning | JAN | 66 min |
| Jul 4, 2:53 PM CDT | Flash Flood Warning | JAN | 3 hr |
| Jul 12, 3:28 AM CDT | Heat Advisory | JAN | 11 days |
| Jul 24, 9:37 PM CDT | Heat Advisory | JAN | 6 days |
| Jul 30, 2:36 PM CDT | Special Weather Statement | JAN | 24 min |
| Jul 30, 3:54 PM CDT | Special Weather Statement | JAN | 36 min |
| Jul 30, 3:57 PM CDT | Severe Thunderstorm Warning | JAN | 33 min |
| Aug 5, 12:58 PM CDT | Special Weather Statement | JAN | 32 min |
| Aug 7, 3:05 PM CDT | Heat Advisory | JAN | 37 hr |
| Aug 8, 4:57 AM CDT | Excessive Heat Warning | JAN | 62 hr |
| Aug 8, 6:21 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Aug 8, 6:32 PM CDT | Severe Thunderstorm Warning | JAN | 43 min |
| Aug 8, 7:09 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Aug 10, 4:06 AM CDT | Heat Advisory | JAN | 39 hr |
| Aug 10, 5:57 PM CDT | Special Weather Statement | JAN | 33 min |
| Aug 10, 6:00 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Aug 10, 6:15 PM CDT | Severe Thunderstorm Warning | JAN | 60 min |
| Aug 10, 6:39 PM CDT | Severe Thunderstorm Warning | JAN | 51 min |
| Aug 11, 7:11 AM CDT | Special Weather Statement | JAN | 34 min |
| Aug 21, 3:30 PM CDT | Special Weather Statement | JAN | 45 min |
| Aug 21, 3:37 PM CDT | Severe Thunderstorm Warning | JAN | 43 min |
| Aug 21, 4:14 PM CDT | Severe Thunderstorm Warning | JAN | 36 min |
| Sep 6, 6:08 PM CDT | Special Weather Statement | JAN | 37 min |
| Oct 15, 2:12 PM CDT | Fire Weather Watch | JAN | 3 days |
| Oct 25, 3:50 AM CDT | Flash Flood Watch | JAN | 30 hr |
| Oct 26, 4:55 AM CDT | Wind Advisory | JAN | 14 hr |
| Oct 31, 3:54 AM CDT | Flash Flood Watch | JAN | 20 hr |
| Oct 31, 11:45 AM CDT | Tornado Watch | SPC | 8 hr |
| Oct 31, 1:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Oct 31, 2:12 PM CDT | Tornado Warning | JAN | 25 min |
| Oct 31, 2:35 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Oct 31, 3:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Oct 31, 5:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Nov 16, 10:35 AM CST | Flash Flood Watch | JAN | 43 hr |
| Nov 16, 3:11 PM CST | Wind Advisory | JAN | 27 hr |
| Nov 17, 12:19 PM CST | Mesoscale Discussion | SPC | 116 min |
| Nov 17, 12:36 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 17, 7:45 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 17, 11:11 PM CST | Mesoscale Discussion | SPC | 94 min |
| Nov 18, 12:14 AM CST | Flash Flood Warning | JAN | 4 hr |
| Nov 18, 12:22 AM CST | Severe Thunderstorm Warning | JAN | 35 min |
| Nov 18, 7:23 PM CST | River Flood Warning | JAN | 68 hr |
| Nov 21, 3:56 AM CST | Freeze Warning | JAN | 53 hr |
| Dec 10, 12:03 AM CST | Dense Fog Advisory | JAN | 9 hr |
| Dec 12, 2:50 PM CST | Wind Advisory | JAN | 33 hr |
| Dec 13, 6:16 PM CST | Mesoscale Discussion | SPC | 119 min |
| Dec 21, 5:47 PM CST | Mesoscale Discussion | SPC | 118 min |
| Dec 22, 5:00 AM CST | Dense Fog Advisory | JAN | 5 hr |
| Dec 23, 2:34 AM CST | Mesoscale Discussion | SPC | 86 min |
| Dec 23, 1:33 PM CST | Mesoscale Discussion | SPC | 57 min |
| Dec 23, 1:54 PM CST | Special Weather Statement | JAN | 36 min |
| Dec 23, 2:17 PM CST | Severe Thunderstorm Warning | JAN | 43 min |
| Dec 23, 2:17 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 23, 5:12 PM CST | Mesoscale Discussion | SPC | 63 min |
| Dec 24, 5:24 PM CST | Special Weather Statement | JAN | 36 min |
| Dec 24, 5:28 PM CST | Severe Thunderstorm Warning | JAN | 29 min |
| Dec 25, 4:28 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 27, 3:15 PM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 28, 2:03 AM CST | Mesoscale Discussion | SPC | 117 min |
| Dec 28, 2:23 AM CST | Tornado Watch | SPC | 8 hr |
| Dec 28, 4:22 AM CST | Severe Thunderstorm Warning | JAN | 38 min |
| Dec 28, 4:32 AM CST | Severe Thunderstorm Warning | JAN | 58 min |
| Dec 28, 5:14 AM CST | Mesoscale Discussion | SPC | 2 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 | 2 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 9 |
| Mesoscale Discussion | 33 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 7 |
| River Flood Warning | 4 |
| Flash Flood Watch | 7 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
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.