Alert archive / Mississippi / Clay County
Weather alerts in Clay County, Mississippi, 2013
99 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 99
- Warnings
- 28
- Watches
- 21
- Advisories
- 12
- Busiest month
- March17 alerts
- Busiest day
- June 5, 20136 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Clay County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 13 | 8 | 38% | 6 | 83% | 29 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 80 | 23 | 71% | 57 | 81% | 18 min |
| NWS Jackson, MS: severe thunderstorm warnings | 420 | 241 | 43% | 560 | 83% | 25 min |
| NWS Jackson, MS: flash flood warnings | 146 | 75 | 49% | 140 | 92% | 74 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 9, 3:35 PM CST | Flash Flood Watch | JAN | 26 hr |
| Jan 10, 5:35 PM CST | Special Weather Statement | JAN | 25 min |
| Jan 12, 10:32 AM CST | River Flood Warning | JAN | 7 days |
| Jan 14, 3:40 AM CST | Freezing Rain Advisory | JAN | 16 hr |
| Jan 15, 4:14 AM CST | Flash Flood Watch | JAN | 26 hr |
| Jan 15, 6:03 PM CST | Areal Flood Warning | JAN | 6 hr |
| Jan 16, 1:10 PM CST | Winter Storm Watch | JAN | 8 hr |
| Jan 16, 8:46 PM CST | Winter Storm Warning | JAN | 15 hr |
| Jan 29, 9:49 PM CST | Mesoscale Discussion | SPC | 116 min |
| Jan 29, 10:07 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 30, 3:03 AM CST | Mesoscale Discussion | SPC | 57 min |
| Jan 30, 3:28 AM CST | Severe Thunderstorm Warning | JAN | 62 min |
| Jan 30, 3:45 AM CST | Tornado Watch | SPC | 4 hr |
| Feb 5, 8:57 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Feb 9, 8:23 AM CST | River Flood Warning | JAN | 51 hr |
| Feb 10, 4:59 AM CST | Flash Flood Watch | JAN | 61 hr |
| Feb 12, 2:10 PM CST | River Flood Warning | JAN | 19 hr |
| Feb 25, 3:54 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 11, 9:48 AM CDT | River Flood Warning | JAN | 24 hr |
| Mar 18, 12:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Mar 18, 1:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Mar 18, 1:28 PM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| Mar 18, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 18, 1:55 PM CDT | Severe Thunderstorm Warning | JAN | 50 min |
| Mar 23, 3:41 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Mar 23, 10:48 AM CDT | Flash Flood Watch | JAN | 14 hr |
| Mar 23, 3:21 PM CDT | Wind Advisory | JAN | 28 hr |
| Mar 23, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 23, 6:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 23, 7:12 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Mar 23, 7:57 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Mar 24, 11:02 AM CDT | River Flood Warning | JAN | 58 hr |
| Mar 25, 4:34 AM CDT | Wind Advisory | JAN | 13 hr |
| Mar 26, 4:00 AM CDT | Freeze Warning | JAN | 28 hr |
| Mar 27, 2:28 PM CDT | Freeze Warning | JAN | 19 hr |
| Mar 31, 10:20 PM CDT | Dense Fog Advisory | JAN | 11 hr |
| Apr 10, 4:58 AM CDT | Flash Flood Watch | JAN | 34 hr |
| Apr 10, 10:04 AM CDT | River Flood Warning | JAN | 46 hr |
| Apr 11, 12:02 PM CDT | Severe Thunderstorm Warning | JAN | 28 min |
| Apr 14, 10:51 AM CDT | Special Weather Statement | JAN | 74 min |
| Apr 18, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 18, 6:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 18, 8:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Apr 27, 1:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 9:50 AM CDT | Special Weather Statement | JAN | 30 min |
| Apr 28, 10:39 AM CDT | Special Weather Statement | JAN | 41 min |
| Apr 29, 12:00 AM CDT | Dense Fog Advisory | JAN | 9 hr |
| May 1, 9:31 PM CDT | Flood Watch | JAN | 45 hr |
| May 10, 5:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 17, 1:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 18, 1:45 AM CDT | Special Weather Statement | JAN | 20 min |
| May 18, 3:08 AM CDT | Severe Thunderstorm Warning | JAN | 52 min |
| May 18, 3:49 AM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| May 18, 4:28 AM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| May 18, 11:23 AM CDT | River Flood Warning | JAN | 69 hr |
| May 21, 6:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 21, 9:01 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 21, 11:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 22, 12:05 AM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| May 22, 12:55 AM CDT | Severe Thunderstorm Warning | JAN | 65 min |
| Jun 5, 11:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 5, 1:10 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 1:17 PM CDT | Special Weather Statement | JAN | 33 min |
| Jun 5, 1:35 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Jun 5, 2:15 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Jun 5, 3:03 PM CDT | Special Weather Statement | JAN | 42 min |
| Jun 6, 5:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 27, 10:57 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 28, 6:16 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 28, 9:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 9:39 AM CDT | Flash Flood Watch | JAN | 12 hr |
| Jul 18, 1:44 AM CDT | Special Weather Statement | JAN | 61 min |
| Jul 22, 11:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 23, 10:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 23, 11:02 AM CDT | Special Weather Statement | JAN | 73 min |
| Aug 5, 2:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 5, 5:19 PM CDT | Flash Flood Warning | JAN | 116 min |
| Aug 6, 12:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 8, 4:41 PM CDT | Special Weather Statement | JAN | 29 min |
| Aug 8, 5:15 PM CDT | Special Weather Statement | JAN | 40 min |
| Aug 8, 5:49 PM CDT | Special Weather Statement | JAN | 61 min |
| Sep 20, 1:45 PM CDT | Flash Flood Watch | JAN | 20 hr |
| Sep 24, 9:32 AM CDT | Flash Flood Watch | JAN | 7 hr |
| Oct 10, 8:14 AM CDT | Dense Fog Advisory | JAN | 106 min |
| Oct 10, 8:14 PM CDT | Dense Fog Advisory | JAN | 14 hr |
| Oct 18, 3:25 AM CDT | Dense Fog Advisory | JAN | 6 hr |
| Oct 25, 2:37 PM CDT | Freeze Warning | JAN | 17 hr |
| Oct 30, 2:47 PM CDT | Flash Flood Watch | JAN | 27 hr |
| Nov 11, 1:13 PM CST | Freeze Warning | JAN | 44 hr |
| Nov 12, 3:52 PM CST | Freeze Warning | JAN | 41 hr |
| Nov 25, 12:47 PM CST | Flood Watch | JAN | 23 hr |
| Dec 2, 8:43 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Dec 5, 10:43 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 9, 1:25 PM CST | Freezing Rain Advisory | JAN | 11 hr |
| Dec 20, 11:47 AM CST | Wind Advisory | JAN | 33 hr |
| Dec 21, 5:06 PM CST | Mesoscale Discussion | SPC | 84 min |
| Dec 21, 5:22 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 21, 7:40 PM CST | Mesoscale Discussion | SPC | 95 min |
| Dec 21, 10:33 PM CST | Mesoscale Discussion | SPC | 87 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 | 13 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 12 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 7 |
| Flash Flood Watch | 9 |
| Flood Watch | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 2 |
| Cold | |
| Freeze Warning | 5 |
| Wind and dust | |
| Wind Advisory | 3 |
| 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 archive20122014
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.