Alert archive / Mississippi / Kemper County
Weather alerts in Kemper County, Mississippi, 2018
101 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Kemper County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 101
- Warnings
- 24
- Watches
- 17
- Advisories
- 20
- Busiest month
- April15 alerts
- Busiest day
- April 14, 20186 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 3 tornado warnings covering Kemper County in 2018 had a tornado report inside them.
Kemper County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 14 | 7 | 50% | 2 | 100% | 25 min |
| Flash flood warnings | 2 | 2 | 0% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 91 | 28 | 69% | 77 | 51% | 15 min |
| NWS Jackson, MS: severe thunderstorm warnings | 449 | 250 | 44% | 724 | 75% | 25 min |
| NWS Jackson, MS: flash flood warnings | 121 | 74 | 39% | 245 | 85% | 93 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, 7:18 PM CST | Dense Fog Advisory | JAN | 10 hr |
| Jan 15, 4:14 AM CST | Winter Storm Watch | JAN | 11 hr |
| Jan 15, 2:45 PM CST | Wind Chill Advisory | JAN | 45 hr |
| Jan 15, 2:45 PM CST | Winter Weather Advisory | JAN | 33 hr |
| Jan 15, 2:56 PM CST | Hard Freeze Warning | JAN | 69 hr |
| Jan 22, 10:32 AM CST | Tornado Warning | JAN | 15 min |
| Feb 6, 4:31 PM CST | Flash Flood Watch | JAN | 16 hr |
| Feb 24, 5:29 PM CST | Mesoscale Discussion | SPC | 91 min |
| Mar 7, 2:03 AM CST | Freeze Warning | JAN | 30 hr |
| Mar 7, 2:52 PM CST | Freeze Watch | JAN | 12 hr |
| Mar 8, 3:03 AM CST | Freeze Warning | JAN | 29 hr |
| Mar 10, 8:33 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 10, 10:44 PM CST | Mesoscale Discussion | SPC | 91 min |
| Mar 10, 11:37 PM CST | Severe Thunderstorm Warning | JAN | 38 min |
| Mar 11, 12:11 AM CST | Special Weather Statement | JAN | 64 min |
| Mar 12, 3:12 PM CDT | Freeze Watch | JAN | 24 hr |
| Mar 13, 3:19 PM CDT | Freeze Watch | JAN | 23 hr |
| Mar 14, 2:07 PM CDT | Freeze Warning | JAN | 18 hr |
| Mar 19, 4:55 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| Apr 3, 7:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 3, 8:13 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 3, 9:42 PM CDT | Severe Thunderstorm Warning | JAN | 78 min |
| Apr 6, 3:20 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 6, 5:28 PM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| Apr 6, 6:15 PM CDT | Special Weather Statement | JAN | 15 min |
| Apr 6, 9:45 PM CDT | Flash Flood Warning | JAN | 3 hr |
| Apr 12, 2:51 PM CDT | Flash Flood Watch | JAN | 52 hr |
| Apr 14, 6:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 14, 6:57 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 14, 10:03 AM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Apr 14, 10:49 AM CDT | Severe Thunderstorm Warning | JAN | 56 min |
| Apr 14, 11:00 AM CDT | Tornado Warning | JAN | 45 min |
| Apr 14, 11:24 AM CDT | Severe Thunderstorm Warning | JAN | 32 min |
| Apr 27, 12:58 AM CDT | Dense Fog Advisory | JAN | 8 hr |
| May 6, 3:48 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| May 16, 8:31 PM CDT | Severe Thunderstorm Warning | JAN | 22 min |
| May 16, 9:02 PM CDT | Severe Thunderstorm Warning | JAN | 19 min |
| May 17, 10:56 AM CDT | Severe Thunderstorm Warning | JAN | 49 min |
| May 25, 5:19 PM CDT | Special Weather Statement | JAN | 26 min |
| May 30, 3:42 AM CDT | Special Weather Statement | JAN | 63 min |
| May 30, 3:58 AM CDT | Special Weather Statement | JAN | 47 min |
| May 30, 4:53 AM CDT | Special Weather Statement | JAN | 52 min |
| May 30, 6:14 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| May 30, 7:16 PM CDT | Special Weather Statement | JAN | 44 min |
| Jun 3, 1:32 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 3, 1:55 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 3, 3:54 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 9, 3:36 PM CDT | Special Weather Statement | JAN | 24 min |
| Jun 21, 5:49 PM CDT | Special Weather Statement | JAN | 26 min |
| Jun 21, 6:17 PM CDT | Special Weather Statement | JAN | 28 min |
| Jun 26, 3:47 AM CDT | Heat Advisory | JAN | 16 hr |
| Jun 26, 3:25 PM CDT | Heat Advisory | JAN | 30 hr |
| Jun 27, 2:43 PM CDT | Heat Advisory | JAN | 29 hr |
| Jun 28, 4:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 28, 4:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 5:36 PM CDT | Special Weather Statement | JAN | 54 min |
| Jun 30, 4:05 PM CDT | Special Weather Statement | JAN | 25 min |
| Jul 2, 2:20 PM CDT | Special Weather Statement | JAN | 25 min |
| Jul 2, 2:52 PM CDT | Special Weather Statement | JAN | 23 min |
| Jul 2, 3:26 PM CDT | Special Weather Statement | JAN | 34 min |
| Jul 2, 3:58 PM CDT | Special Weather Statement | JAN | 32 min |
| Jul 2, 4:40 PM CDT | Special Weather Statement | JAN | 35 min |
| Jul 4, 3:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 13, 4:42 AM CDT | Heat Advisory | JAN | 14 hr |
| Jul 15, 3:55 AM CDT | Heat Advisory | JAN | 15 hr |
| Jul 16, 3:16 AM CDT | Heat Advisory | JAN | 16 hr |
| Jul 16, 1:15 PM CDT | Special Weather Statement | JAN | 30 min |
| Jul 16, 1:46 PM CDT | Special Weather Statement | JAN | 44 min |
| Jul 17, 5:42 PM CDT | Special Weather Statement | JAN | 33 min |
| Jul 19, 3:13 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 31, 12:51 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 4:18 AM CDT | Heat Advisory | JAN | 11 hr |
| Aug 12, 5:27 PM CDT | Special Weather Statement | JAN | 48 min |
| Aug 13, 2:12 PM CDT | Special Weather Statement | JAN | 33 min |
| Aug 16, 7:55 PM CDT | Special Weather Statement | JAN | 50 min |
| Aug 16, 8:07 PM CDT | Severe Thunderstorm Warning | JAN | 53 min |
| Sep 3, 4:18 AM CDT | Flash Flood Watch | JAN | 4 days |
| Sep 4, 3:10 PM CDT | Special Weather Statement | JAN | 65 min |
| Sep 4, 5:11 PM CDT | Special Weather Statement | JAN | 64 min |
| Sep 5, 1:23 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 13, 5:22 PM CDT | Special Weather Statement | JAN | 23 min |
| Oct 31, 11:07 PM CDT | Tornado Watch | SPC | 9 hr |
| Nov 1, 4:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 1, 4:54 AM CDT | Severe Thunderstorm Warning | JAN | 66 min |
| Nov 1, 5:38 AM CDT | Tornado Warning | JAN | 67 min |
| Nov 1, 5:52 AM CDT | Severe Thunderstorm Warning | JAN | 68 min |
| Nov 4, 9:50 PM CST | Dense Fog Advisory | JAN | 10 hr |
| Nov 6, 1:59 AM CST | Severe Thunderstorm Warning | JAN | 46 min |
| Nov 13, 3:34 PM CST | Freeze Watch | JAN | 18 hr |
| Nov 14, 9:33 AM CST | Freeze Warning | JAN | 23 hr |
| Nov 14, 6:19 PM CST | Special Weather Statement | JAN | 3 hr |
| Nov 23, 10:59 PM CST | Dense Fog Advisory | JAN | 10 hr |
| Nov 24, 10:04 PM CST | Dense Fog Advisory | JAN | 11 hr |
| Dec 16, 2:23 PM CST | Dense Fog Advisory | JAN | 20 hr |
| Dec 18, 12:32 AM CST | Dense Fog Advisory | JAN | 9 hr |
| Dec 26, 3:44 AM CST | Flash Flood Watch | JAN | 52 hr |
| Dec 26, 12:40 PM CST | Wind Advisory | JAN | 27 hr |
| Dec 27, 2:41 PM CST | Flash Flood Warning | JAN | 2 hr |
| Dec 31, 11:22 AM CST | Mesoscale Discussion | SPC | 83 min |
| Dec 31, 11:47 AM CST | Tornado Watch | SPC | 5 hr |
| Dec 31, 1:54 PM 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 | 14 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 27 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 4 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 4 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 4 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.