Alert archive / Mississippi / Clay County
Weather alerts in Clay County, Mississippi, 2019
133 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Clay County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 133
- Warnings
- 52
- Watches
- 19
- Advisories
- 15
- Busiest month
- April26 alerts
- Busiest day
- April 14, 20199 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 6 tornado warnings covering Clay County in 2019 had a tornado report inside them.
Clay County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 2 | 67% | 0 | ||
| Severe thunderstorm warnings | 20 | 13 | 35% | 11 | 73% | 17 min |
| Flash flood warnings | 6 | 6 | 0% | 7 | 43% | 27 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 122 | 50 | 59% | 184 | 84% | 23 min |
| NWS Jackson, MS: severe thunderstorm warnings | 404 | 246 | 39% | 711 | 74% | 26 min |
| NWS Jackson, MS: flash flood warnings | 117 | 78 | 33% | 278 | 81% | 88 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, 4:06 PM CST | Flash Flood Watch | JAN | 55 hr |
| Jan 2, 7:56 PM CST | River Flood Warning | JAN | 4 days |
| Jan 5, 2:02 PM CST | Dense Fog Advisory | JAN | 17 hr |
| Jan 17, 9:10 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Jan 18, 7:19 PM CST | River Flood Warning | JAN | 62 hr |
| Jan 19, 5:23 AM CST | Tornado Watch | SPC | 8 hr |
| Jan 27, 3:51 PM CST | Winter Storm Watch | JAN | 12 hr |
| Jan 28, 3:51 AM CST | Winter Storm Warning | JAN | 24 hr |
| Feb 3, 4:03 AM CST | Dense Fog Advisory | JAN | 6 hr |
| Feb 18, 7:55 AM CST | River Flood Warning | JAN | 8 days |
| Feb 18, 3:55 PM CST | Flash Flood Watch | JAN | 50 hr |
| Feb 19, 4:34 PM CST | Special Weather Statement | JAN | 26 min |
| Feb 19, 8:49 PM CST | Areal Flood Warning | JAN | 6 hr |
| Feb 20, 9:20 AM CST | Flash Flood Warning | JAN | 4 hr |
| Feb 20, 4:52 PM CST | Flash Flood Watch | JAN | 3 days |
| Feb 22, 11:11 AM CST | Flash Flood Warning | JAN | 3 hr |
| Feb 22, 12:00 PM CST | River Flood Warning | JAN | 5 days |
| Feb 22, 2:14 PM CST | Areal Flood Warning | JAN | 18 hr |
| Feb 23, 12:26 PM CST | Tornado Watch | SPC | 8 hr |
| Feb 23, 2:35 PM CST | Mesoscale Discussion | SPC | 55 min |
| Feb 23, 3:55 PM CST | Severe Thunderstorm Warning | JAN | 50 min |
| Feb 23, 7:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Mar 3, 2:52 PM CST | Freeze Warning | JAN | 21 hr |
| Mar 4, 3:50 AM CST | Freeze Warning | JAN | 30 hr |
| Mar 5, 3:10 AM CST | Freeze Warning | JAN | 31 hr |
| Mar 6, 1:48 PM CST | Freeze Warning | JAN | 18 hr |
| Mar 9, 1:27 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 9, 1:58 PM CST | Tornado Watch | SPC | 5 hr |
| Mar 9, 4:50 PM CST | Mesoscale Discussion | SPC | 85 min |
| Mar 12, 3:25 PM CDT | Wind Advisory | JAN | 49 hr |
| Mar 14, 10:32 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Mar 14, 11:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Mar 14, 12:01 PM CDT | Tornado Warning | JAN | 39 min |
| Mar 14, 12:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 14, 12:59 PM CDT | Tornado Warning | JAN | 49 min |
| Mar 14, 1:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Mar 14, 2:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 30, 3:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 30, 7:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 4, 9:35 AM CDT | Special Weather Statement | JAN | 55 min |
| Apr 6, 5:38 PM CDT | Severe Thunderstorm Warning | JAN | 67 min |
| Apr 6, 6:24 PM CDT | Severe Thunderstorm Warning | JAN | 38 min |
| Apr 6, 6:37 PM CDT | Severe Thunderstorm Warning | JAN | 38 min |
| Apr 6, 7:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 6, 8:15 PM CDT | River Flood Warning | JAN | 5 days |
| Apr 7, 1:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 7:32 PM CDT | Special Weather Statement | JAN | 28 min |
| Apr 8, 4:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 8, 7:25 PM CDT | Severe Thunderstorm Warning | JAN | 36 min |
| Apr 8, 7:26 PM CDT | Severe Thunderstorm Warning | JAN | 19 min |
| Apr 8, 7:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 12:04 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Apr 13, 9:25 AM CDT | River Flood Warning | JAN | 4 days |
| Apr 13, 7:11 PM CDT | Tornado Watch | SPC | 11 hr |
| Apr 13, 8:40 PM CDT | Severe Thunderstorm Warning | JAN | 58 min |
| Apr 13, 8:56 PM CDT | Tornado Warning | JAN | 43 min |
| Apr 13, 9:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 13, 9:38 PM CDT | Severe Thunderstorm Warning | JAN | 82 min |
| Apr 13, 10:26 PM CDT | Tornado Warning | JAN | 34 min |
| Apr 13, 10:49 PM CDT | Flash Flood Warning | JAN | 116 min |
| Apr 13, 10:50 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Apr 14, 1:28 AM CDT | Areal Flood Warning | JAN | 12 hr |
| Apr 17, 2:59 PM CDT | Flash Flood Watch | JAN | 28 hr |
| Apr 18, 5:46 PM CDT | Severe Thunderstorm Warning | JAN | 37 min |
| Apr 18, 5:50 PM CDT | Flash Flood Warning | JAN | 115 min |
| May 8, 3:49 AM CDT | Flash Flood Watch | JAN | 4 days |
| May 9, 8:39 AM CDT | Special Weather Statement | JAN | 36 min |
| May 10, 10:24 AM CDT | River Flood Warning | JAN | 3 days |
| Jun 6, 7:54 PM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| Jun 7, 4:02 PM CDT | Severe Thunderstorm Warning | JAN | 58 min |
| Jun 17, 1:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 17, 4:53 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Jun 19, 9:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 19, 10:24 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 11:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 20, 12:11 AM CDT | Severe Thunderstorm Warning | JAN | 64 min |
| Jun 20, 12:48 AM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Jun 21, 3:33 AM CDT | Heat Advisory | JAN | 15 hr |
| Jun 21, 9:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 22, 5:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 23, 4:03 PM CDT | Special Weather Statement | JAN | 42 min |
| Jun 23, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 23, 9:21 PM CDT | Special Weather Statement | JAN | 39 min |
| Jun 23, 10:10 PM CDT | Special Weather Statement | JAN | 20 min |
| Jun 24, 4:18 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 27, 10:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 29, 5:35 PM CDT | Special Weather Statement | JAN | 25 min |
| Jul 3, 2:21 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Jul 7, 12:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 7, 2:22 PM CDT | Special Weather Statement | JAN | 38 min |
| Jul 7, 3:18 PM CDT | Special Weather Statement | JAN | 42 min |
| Jul 7, 3:24 PM CDT | Severe Thunderstorm Warning | JAN | 28 min |
| Jul 8, 2:40 PM CDT | Special Weather Statement | JAN | 35 min |
| Jul 8, 3:17 PM CDT | Special Weather Statement | JAN | 28 min |
| Jul 8, 3:43 PM CDT | Heat Advisory | JAN | 27 hr |
| Jul 9, 3:07 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 10, 3:40 PM CDT | Heat Advisory | JAN | 27 hr |
| Jul 11, 2:22 PM CDT | Flash Flood Watch | JAN | 4 days |
| Jul 15, 8:01 AM CDT | Severe Thunderstorm Warning | JAN | 29 min |
| Jul 15, 5:12 PM CDT | Severe Thunderstorm Warning | JAN | 37 min |
| Jul 16, 2:35 PM CDT | Special Weather Statement | JAN | 40 min |
| Aug 7, 1:23 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 3:33 PM CDT | Heat Advisory | JAN | 51 hr |
| Aug 10, 3:50 AM CDT | Heat Advisory | JAN | 71 hr |
| Aug 11, 3:57 AM CDT | Excessive Heat Warning | JAN | 64 hr |
| Aug 19, 2:44 PM CDT | Heat Advisory | JAN | 29 hr |
| Aug 25, 3:51 PM CDT | Special Weather Statement | JAN | 39 min |
| Aug 27, 3:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 9, 5:32 AM CDT | Dense Fog Advisory | JAN | 3 hr |
| Oct 11, 3:22 PM CDT | Special Weather Statement | JAN | 53 min |
| Oct 24, 2:53 PM CDT | Flash Flood Watch | JAN | 46 hr |
| Oct 26, 5:04 AM CDT | Wind Advisory | JAN | 8 hr |
| Oct 26, 9:38 AM CDT | Severe Thunderstorm Warning | JAN | 52 min |
| Oct 30, 8:15 AM CDT | Flash Flood Warning | JAN | 2 hr |
| Oct 31, 4:52 AM CDT | Freeze Warning | JAN | 27 hr |
| Nov 1, 2:58 PM CDT | Freeze Warning | JAN | 18 hr |
| Nov 7, 2:17 PM CST | Freeze Watch | JAN | 13 hr |
| Nov 8, 3:32 AM CST | Freeze Warning | JAN | 28 hr |
| Nov 11, 3:36 AM CST | Freeze Watch | JAN | 7 hr |
| Nov 11, 3:36 AM CST | Freeze Warning | JAN | 54 hr |
| Nov 11, 3:36 AM CST | Wind Advisory | JAN | 38 hr |
| Nov 30, 3:54 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 30, 6:53 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 30, 9:16 PM CST | Mesoscale Discussion | SPC | 119 min |
| Dec 6, 8:52 AM CST | Special Weather Statement | JAN | 23 min |
| Dec 13, 9:40 PM CST | Dense Fog Advisory | JAN | 11 hr |
| Dec 16, 1:52 PM CST | Mesoscale Discussion | SPC | 83 min |
| Dec 16, 2:22 PM CST | Tornado Watch | SPC | 8 hr |
| Dec 16, 3:10 PM CST | Mesoscale Discussion | SPC | 65 min |
| Dec 29, 2:56 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 29, 4:02 PM CST | Tornado Warning | JAN | 43 min |
| Dec 29, 4:42 PM CST | Tornado Warning | JAN | 48 min |
| Dec 29, 4:47 PM CST | Mesoscale Discussion | SPC | 88 min |
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 | 20 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 31 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 6 |
| River Flood Warning | 7 |
| Flash Flood Watch | 7 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 8 |
| Freeze Watch | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.