Alert archive / Mississippi / Warren County
Weather alerts in Warren County, Mississippi, 2017
150 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 150
- Warnings
- 43
- Watches
- 24
- Advisories
- 21
- Busiest month
- April32 alerts
- Busiest day
- March 25, 20178 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
3 of 7 tornado warnings covering Warren County in 2017 had a tornado report inside them.
Warren County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 7 | 3 | 57% | 0 | ||
| Severe thunderstorm warnings | 23 | 13 | 43% | 25 | 64% | 25 min |
| Flash flood warnings | 3 | 3 | 0% | 12 | 92% | 93 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 84 | 34 | 60% | 98 | 86% | 22 min |
| NWS Jackson, MS: severe thunderstorm warnings | 380 | 246 | 35% | 733 | 78% | 22 min |
| NWS Jackson, MS: flash flood warnings | 128 | 78 | 39% | 257 | 79% | 68 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 |
|---|---|---|---|
| Dec 31, 10:00 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Jan 1, 7:02 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Jan 2, 3:30 AM CST | Special Weather Statement | JAN | 30 min |
| Jan 2, 4:05 AM CST | Special Weather Statement | JAN | 25 min |
| Jan 2, 11:22 AM CST | Tornado Watch | SPC | 9 hr |
| Jan 2, 12:46 PM CST | Severe Thunderstorm Warning | JAN | 44 min |
| Jan 2, 1:22 PM CST | Severe Thunderstorm Warning | JAN | 53 min |
| Jan 5, 1:04 PM CST | Winter Weather Advisory | JAN | 33 hr |
| Jan 6, 5:24 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 6, 10:40 AM CST | Winter Storm Warning | JAN | 11 hr |
| Jan 6, 4:15 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 6, 7:05 PM CST | Hard Freeze Warning | JAN | 41 hr |
| Jan 6, 9:48 PM CST | Wind Chill Advisory | JAN | 13 hr |
| Jan 13, 7:37 PM CST | Dense Fog Advisory | JAN | 13 hr |
| Jan 18, 6:06 PM CST | Mesoscale Discussion | SPC | 114 min |
| Jan 19, 6:28 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 21, 5:32 PM CST | Mesoscale Discussion | SPC | 118 min |
| Jan 21, 7:50 PM CST | Tornado Watch | SPC | 4 hr |
| Jan 21, 8:02 PM CST | Special Weather Statement | JAN | 28 min |
| Jan 21, 8:05 PM CST | Severe Thunderstorm Warning | JAN | 55 min |
| Jan 21, 8:22 PM CST | Mesoscale Discussion | SPC | 113 min |
| Feb 7, 7:54 AM CST | Tornado Watch | SPC | 11 hr |
| Feb 14, 2:02 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 22, 3:14 AM CST | Dense Fog Advisory | JAN | 7 hr |
| Feb 22, 2:28 PM CST | Dense Fog Advisory | JAN | 18 hr |
| Mar 7, 8:03 AM CST | Mesoscale Discussion | SPC | 117 min |
| Mar 7, 11:02 AM CST | Mesoscale Discussion | SPC | 58 min |
| Mar 24, 11:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Mar 25, 12:05 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 25, 3:06 AM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 25, 3:25 AM CDT | Special Weather Statement | JAN | 50 min |
| Mar 25, 4:20 AM CDT | Special Weather Statement | JAN | 55 min |
| Mar 25, 4:46 AM CDT | Special Weather Statement | JAN | 59 min |
| Mar 25, 5:43 PM CDT | Special Weather Statement | JAN | 32 min |
| Mar 25, 5:48 PM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Mar 27, 12:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 27, 1:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 27, 3:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Mar 27, 3:48 PM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Mar 27, 5:35 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Mar 27, 6:12 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Mar 29, 5:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Mar 29, 7:26 PM CDT | Tornado Watch | SPC | 8 hr |
| Mar 29, 9:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 2, 4:54 AM CDT | Flash Flood Watch | JAN | 28 hr |
| Apr 2, 12:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 2, 1:34 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 2, 4:52 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 2, 6:15 PM CDT | Tornado Warning | JAN | 60 min |
| Apr 2, 6:48 PM CDT | Tornado Warning | JAN | 57 min |
| Apr 2, 7:10 PM CDT | Flash Flood Warning | JAN | 5 hr |
| Apr 2, 9:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 2, 10:18 PM CDT | River Flood Warning | JAN | 13 days |
| Apr 3, 12:04 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Apr 3, 2:54 AM CDT | Areal Flood Warning | JAN | 3 hr |
| Apr 3, 5:32 AM CDT | Areal Flood Warning | JAN | 6 hr |
| Apr 17, 6:51 PM CDT | Severe Thunderstorm Warning | JAN | 24 min |
| Apr 18, 6:13 PM CDT | Special Weather Statement | JAN | 32 min |
| Apr 22, 12:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 22, 4:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Apr 26, 4:44 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 26, 7:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 26, 7:55 PM CDT | Severe Thunderstorm Warning | JAN | 65 min |
| Apr 26, 8:16 PM CDT | Severe Thunderstorm Warning | JAN | 59 min |
| Apr 28, 1:18 PM CDT | River Flood Warning | JAN | 46 days |
| Apr 28, 3:43 PM CDT | Wind Advisory | JAN | 33 hr |
| Apr 29, 10:15 AM CDT | River Flood Warning | JAN | 36 hr |
| Apr 29, 11:50 AM CDT | Flash Flood Watch | JAN | 28 hr |
| Apr 30, 1:49 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 30, 6:12 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 30, 6:34 AM CDT | Severe Thunderstorm Warning | JAN | 56 min |
| Apr 30, 6:43 AM CDT | Tornado Warning | JAN | 62 min |
| Apr 30, 7:20 AM CDT | Tornado Warning | JAN | 55 min |
| Apr 30, 7:28 AM CDT | Tornado Warning | JAN | 62 min |
| Apr 30, 8:13 AM CDT | Tornado Warning | JAN | 62 min |
| Apr 30, 9:00 AM CDT | Flash Flood Warning | JAN | 3 hr |
| May 2, 3:20 PM CDT | Flash Flood Watch | JAN | 29 hr |
| May 3, 3:48 AM CDT | Wind Advisory | JAN | 24 hr |
| May 3, 7:17 PM CDT | Special Weather Statement | JAN | 28 min |
| May 12, 1:43 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 20, 2:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 21, 2:08 PM CDT | Severe Thunderstorm Warning | JAN | 52 min |
| May 21, 2:20 PM CDT | Severe Thunderstorm Warning | JAN | 24 min |
| May 21, 2:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| May 21, 2:42 PM CDT | Severe Thunderstorm Warning | JAN | 63 min |
| May 21, 2:55 PM CDT | Severe Thunderstorm Warning | JAN | 50 min |
| May 21, 3:13 PM CDT | Flash Flood Watch | JAN | 40 hr |
| May 23, 10:52 AM CDT | River Flood Warning | JAN | 44 hr |
| May 28, 7:42 AM CDT | Special Weather Statement | JAN | 33 min |
| May 28, 10:51 PM CDT | Special Weather Statement | JAN | 54 min |
| Jun 11, 5:29 PM CDT | Special Weather Statement | JAN | 31 min |
| Jun 16, 12:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 12:42 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 16, 2:54 PM CDT | Special Weather Statement | JAN | 51 min |
| Jun 16, 3:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 4:29 PM CDT | Special Weather Statement | JAN | 46 min |
| Jun 16, 6:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 16, 7:35 PM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| Jun 16, 7:53 PM CDT | Severe Thunderstorm Warning | JAN | 67 min |
| Jun 17, 1:21 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 9:44 PM CDT | Severe Thunderstorm Warning | JAN | 35 min |
| Jun 18, 10:59 PM CDT | Special Weather Statement | JAN | 31 min |
| Jun 19, 2:44 PM CDT | Flash Flood Watch | JAN | 4 days |
| Jun 22, 2:57 AM CDT | Tornado Watch | SPC | 10 hr |
| Jun 22, 11:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 22, 1:04 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 22, 2:58 PM CDT | Severe Thunderstorm Warning | JAN | 36 min |
| Jun 22, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 22, 8:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 23, 2:26 PM CDT | River Flood Warning | JAN | 12 days |
| Jun 23, 9:50 PM CDT | Special Weather Statement | JAN | 55 min |
| Jul 7, 6:26 PM CDT | Special Weather Statement | JAN | 34 min |
| Jul 13, 2:43 PM CDT | Special Weather Statement | JAN | 32 min |
| Jul 15, 6:17 PM CDT | Special Weather Statement | JAN | 28 min |
| Jul 19, 3:22 AM CDT | Heat Advisory | JAN | 40 hr |
| Jul 20, 1:57 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 22, 3:45 AM CDT | Heat Advisory | JAN | 15 hr |
| Jul 25, 2:52 PM CDT | Special Weather Statement | JAN | 23 min |
| Jul 25, 4:27 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Jul 26, 4:19 AM CDT | Heat Advisory | JAN | 40 hr |
| Jul 28, 2:53 PM CDT | Flash Flood Watch | JAN | 21 hr |
| Jul 29, 4:18 AM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Aug 7, 2:04 PM CDT | Flash Flood Watch | JAN | 17 hr |
| Aug 8, 9:44 AM CDT | Flash Flood Watch | JAN | 33 hr |
| Aug 10, 2:42 AM CDT | Flash Flood Watch | JAN | 16 hr |
| Aug 16, 2:59 PM CDT | Heat Advisory | JAN | 19 hr |
| Aug 16, 3:25 PM CDT | Special Weather Statement | JAN | 50 min |
| Aug 17, 1:52 PM CDT | Special Weather Statement | JAN | 38 min |
| Aug 18, 3:02 PM CDT | Heat Advisory | JAN | 52 hr |
| Aug 19, 3:57 PM CDT | Severe Thunderstorm Warning | JAN | 32 min |
| Aug 29, 10:54 AM CDT | Flash Flood Watch | JAN | 56 hr |
| Aug 30, 10:22 AM CDT | Tornado Watch | SPC | 8 hr |
| Aug 30, 2:45 PM CDT | Tornado Warning | JAN | 33 min |
| Aug 30, 2:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 30, 5:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Sep 5, 6:16 PM CDT | Special Weather Statement | JAN | 29 min |
| Sep 5, 6:54 PM CDT | Special Weather Statement | JAN | 51 min |
| Oct 28, 3:39 AM CDT | Freeze Warning | JAN | 29 hr |
| Nov 3, 7:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 3, 10:41 PM CDT | Severe Thunderstorm Warning | JAN | 64 min |
| Nov 3, 11:17 PM CDT | Special Weather Statement | JAN | 43 min |
| Nov 17, 2:43 PM CST | Wind Advisory | JAN | 30 hr |
| Dec 1, 1:57 PM CST | Dense Fog Advisory | JAN | 20 hr |
| Dec 7, 3:33 AM CST | Winter Weather Advisory | JAN | 32 hr |
| Dec 8, 3:36 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 17, 5:18 PM CST | Dense Fog Advisory | JAN | 16 hr |
| Dec 20, 1:55 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 21, 2:05 AM CST | Dense Fog Advisory | JAN | 8 hr |
| Dec 22, 11:11 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 30, 5:04 AM CST | Winter Weather Advisory | JAN | 33 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 | 23 |
| Tornado Warning | 7 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 11 |
| Mesoscale Discussion | 37 |
| Special Weather Statement | 25 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 3 |
| River Flood Warning | 5 |
| Flash Flood Watch | 10 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.