Alert archive / Mississippi / Warren County
Weather alerts in Warren County, Mississippi, 2020
131 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Warren County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 131
- Warnings
- 42
- Watches
- 23
- Advisories
- 23
- Busiest month
- April26 alerts
- Busiest day
- April 12, 20208 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Warren County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 26 | 19 | 27% | 12 | 58% | 31 min |
| Flash flood warnings | 5 | 5 | 0% | 10 | 80% | 43 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 60 | 37 | 38% | 149 | 85% | 26 min |
| NWS Jackson, MS: severe thunderstorm warnings | 423 | 268 | 37% | 898 | 83% | 26 min |
| NWS Jackson, MS: flash flood warnings | 108 | 73 | 32% | 276 | 85% | 87 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, 3:07 AM CST | Flash Flood Watch | JAN | 57 hr |
| Jan 2, 2:15 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Jan 8, 11:38 AM CST | River Flood Advisory | JAN | 51 hr |
| Jan 9, 2:27 PM CST | Wind Advisory | JAN | 48 hr |
| Jan 10, 4:53 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 10, 11:43 AM CST | River Flood Warning | JAN | 131 days |
| Jan 11, 2:22 AM CST | Mesoscale Discussion | SPC | 53 min |
| Jan 11, 2:37 AM CST | Tornado Watch | SPC | 8 hr |
| Jan 11, 4:31 AM CST | Mesoscale Discussion | SPC | 59 min |
| Jan 11, 5:10 AM CST | Severe Thunderstorm Warning | JAN | 65 min |
| Jan 11, 6:13 AM CST | Severe Thunderstorm Warning | JAN | 62 min |
| Jan 11, 6:27 AM CST | Severe Thunderstorm Warning | JAN | 63 min |
| Jan 13, 8:05 AM CST | Dense Fog Advisory | JAN | 3 hr |
| Jan 14, 3:00 AM CST | Flash Flood Watch | JAN | 21 hr |
| Jan 14, 6:35 AM CST | Special Weather Statement | JAN | 40 min |
| Jan 14, 10:41 AM CST | Flash Flood Warning | JAN | 3 hr |
| Jan 14, 2:12 PM CST | Areal Flood Warning | JAN | 9 hr |
| Jan 28, 12:33 AM CST | Dense Fog Advisory | JAN | 10 hr |
| Feb 5, 10:28 AM CST | Mesoscale Discussion | SPC | 92 min |
| Feb 5, 11:49 AM CST | Tornado Watch | SPC | 6 hr |
| Feb 5, 1:39 PM CST | Mesoscale Discussion | SPC | 96 min |
| Feb 5, 3:01 PM CST | Severe Thunderstorm Warning | JAN | 44 min |
| Feb 5, 3:41 PM CST | Mesoscale Discussion | SPC | 64 min |
| Feb 5, 3:42 PM CST | Special Weather Statement | JAN | 48 min |
| Feb 5, 4:13 PM CST | Severe Thunderstorm Warning | JAN | 32 min |
| Feb 7, 10:23 AM CST | River Flood Warning | JAN | 38 days |
| Feb 9, 4:42 AM CST | Flash Flood Watch | JAN | 47 hr |
| Feb 9, 11:26 PM CST | Severe Thunderstorm Warning | JAN | 64 min |
| Feb 10, 12:06 AM CST | Severe Thunderstorm Warning | JAN | 24 min |
| Feb 10, 12:39 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 10, 1:36 PM CST | Flash Flood Warning | JAN | 3 hr |
| Feb 10, 6:01 PM CST | Mesoscale Discussion | SPC | 89 min |
| Feb 11, 2:05 AM CST | Areal Flood Warning | JAN | 6 hr |
| Feb 11, 3:34 AM CST | Flash Flood Watch | JAN | 49 hr |
| Feb 12, 1:46 PM CST | Mesoscale Discussion | SPC | 119 min |
| Feb 17, 2:14 PM CST | Flash Flood Watch | JAN | 31 hr |
| Feb 19, 2:59 PM CST | Flash Flood Watch | JAN | 18 hr |
| Feb 25, 5:04 AM CST | Dense Fog Advisory | JAN | 4 hr |
| Mar 3, 2:38 PM CST | Flash Flood Watch | JAN | 39 hr |
| Mar 4, 1:19 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 4, 1:53 AM CST | Tornado Watch | SPC | 8 hr |
| Mar 4, 8:47 AM CST | Severe Thunderstorm Warning | JAN | 58 min |
| Mar 4, 10:50 AM CST | Mesoscale Discussion | SPC | 115 min |
| Mar 28, 7:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 28, 9:58 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 31, 3:16 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 8, 12:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 3:44 PM CDT | Wind Advisory | JAN | 30 hr |
| Apr 12, 7:18 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 12, 10:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 12, 10:41 AM CDT | Tornado Watch | SPC | 10 hr |
| Apr 12, 12:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 12, 12:21 PM CDT | Severe Thunderstorm Warning | JAN | 54 min |
| Apr 12, 4:49 PM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| Apr 12, 5:21 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Apr 12, 5:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 18, 4:31 AM CDT | Flash Flood Watch | JAN | 41 hr |
| Apr 18, 11:07 AM CDT | River Flood Warning | JAN | 17 days |
| Apr 19, 11:06 AM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 19, 11:45 AM CDT | Tornado Watch | SPC | 9 hr |
| Apr 19, 2:08 PM CDT | Severe Thunderstorm Warning | JAN | 67 min |
| Apr 19, 2:30 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Apr 19, 3:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 19, 3:09 PM CDT | Flash Flood Warning | JAN | 4 hr |
| Apr 21, 2:16 PM CDT | Flash Flood Watch | JAN | 44 hr |
| Apr 22, 8:10 PM CDT | Severe Thunderstorm Warning | JAN | 65 min |
| Apr 22, 9:47 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 23, 12:35 AM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| Apr 23, 12:38 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Apr 28, 11:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 29, 12:48 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 29, 4:59 AM CDT | Special Weather Statement | JAN | 61 min |
| May 8, 11:51 AM CDT | Special Weather Statement | JAN | 54 min |
| May 16, 6:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 17, 11:51 AM CDT | Special Weather Statement | JAN | 24 min |
| May 17, 12:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 23, 11:56 AM CDT | Mesoscale Discussion | SPC | 94 min |
| May 23, 1:47 PM CDT | Severe Thunderstorm Warning | JAN | 58 min |
| May 23, 2:27 PM CDT | Severe Thunderstorm Warning | JAN | 63 min |
| May 25, 1:58 PM CDT | Special Weather Statement | JAN | 32 min |
| May 25, 2:06 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| May 25, 2:30 PM CDT | Special Weather Statement | JAN | 30 min |
| May 26, 11:56 AM CDT | River Flood Warning | JAN | 21 days |
| Jun 5, 2:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 5, 2:49 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 6:11 PM CDT | Severe Thunderstorm Warning | JAN | 79 min |
| Jun 5, 7:13 PM CDT | Severe Thunderstorm Warning | JAN | 77 min |
| Jun 6, 4:24 PM CDT | Flash Flood Watch | JAN | 57 hr |
| Jun 7, 11:26 AM CDT | Wind Advisory | JAN | 22 hr |
| Jun 21, 6:31 PM CDT | Severe Thunderstorm Warning | JAN | 44 min |
| Jun 22, 10:15 AM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Jun 22, 11:01 AM CDT | Special Weather Statement | JAN | 59 min |
| Jul 2, 4:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 7:43 AM CDT | Severe Thunderstorm Warning | JAN | 31 min |
| Jul 4, 2:17 PM CDT | Special Weather Statement | JAN | 28 min |
| Jul 10, 2:38 AM CDT | Heat Advisory | JAN | 16 hr |
| Jul 10, 3:19 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 11, 3:53 AM CDT | Excessive Heat Warning | JAN | 15 hr |
| Jul 11, 2:32 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 12, 2:51 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 13, 2:58 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 14, 2:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 14, 2:22 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 15, 7:16 PM CDT | Heat Advisory | JAN | 24 hr |
| Jul 31, 12:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 31, 1:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 4:15 AM CDT | Heat Advisory | JAN | 14 hr |
| Aug 13, 7:56 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Aug 13, 6:36 PM CDT | River Flood Warning | JAN | 12 hr |
| Aug 16, 3:18 AM CDT | Heat Advisory | JAN | 15 hr |
| Aug 20, 5:42 PM CDT | Special Weather Statement | JAN | 33 min |
| Aug 27, 4:59 AM CDT | Wind Advisory | JAN | 26 hr |
| Aug 27, 6:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 27, 7:47 AM CDT | Tornado Watch | SPC | 8 hr |
| Aug 28, 3:16 PM CDT | Heat Advisory | JAN | 28 hr |
| Aug 31, 2:39 AM CDT | Heat Advisory | JAN | 16 hr |
| Aug 31, 6:19 PM CDT | Special Weather Statement | JAN | 26 min |
| Sep 1, 2:49 AM CDT | Heat Advisory | JAN | 16 hr |
| Sep 23, 3:56 AM CDT | Flash Flood Watch | JAN | 30 hr |
| Sep 27, 4:02 AM CDT | Dense Fog Advisory | JAN | 6 hr |
| Oct 7, 4:01 PM CDT | Flash Flood Watch | JAN | 63 hr |
| Oct 8, 9:58 AM CDT | Tropical Storm Warning | JAN | 48 hr |
| Nov 25, 6:20 AM CST | Severe Thunderstorm Warning | JAN | 40 min |
| Nov 30, 2:07 PM CST | Freeze Warning | JAN | 19 hr |
| Dec 12, 8:58 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Dec 13, 6:57 PM CST | Special Weather Statement | JAN | 48 min |
| Dec 13, 7:16 PM CST | Severe Thunderstorm Warning | JAN | 59 min |
| Dec 13, 7:34 PM CST | Severe Thunderstorm Warning | JAN | 41 min |
| Dec 20, 7:57 PM CST | Dense Fog Advisory | JAN | 13 hr |
| Dec 23, 9:40 PM CST | Special Weather Statement | JAN | 35 min |
| Dec 24, 9:12 AM CST | River Flood Warning | JAN | 48 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 | 26 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 13 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 5 |
| River Flood Warning | 6 |
| Flash Flood Watch | 12 |
| River Flood Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 12 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Tropical | |
| Tropical Storm Warning | 1 |
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.