Alert archive / Mississippi / Jefferson County
Weather alerts in Jefferson County, Mississippi, 2014
112 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 112
- Warnings
- 36
- Watches
- 24
- Advisories
- 11
- Busiest month
- April21 alerts
- Busiest day
- October 13, 20147 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Jefferson County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 8 | 43% | 5 | 80% | 24 min |
| Flash flood warnings | 10 | 4 | 60% | 1 | 100% | 48 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 87 | 27 | 69% | 147 | 87% | 27 min |
| NWS Jackson, MS: severe thunderstorm warnings | 467 | 261 | 44% | 616 | 70% | 20 min |
| NWS Jackson, MS: flash flood warnings | 121 | 68 | 44% | 124 | 90% | 721 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 4, 2:56 PM CST | Hard Freeze Warning | JAN | 4 days |
| Jan 10, 11:41 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 17, 9:01 AM CST | Fire Weather Watch | JAN | 19 hr |
| Jan 17, 9:01 AM CST | Red Flag Warning | JAN | 9 hr |
| Jan 18, 3:52 AM CST | Red Flag Warning | JAN | 14 hr |
| Jan 21, 8:59 AM CST | Wind Advisory | JAN | 6 hr |
| Jan 23, 4:40 AM CST | Wind Chill Advisory | JAN | 28 hr |
| Jan 26, 2:23 PM CST | Wind Advisory | JAN | 24 hr |
| Jan 27, 4:50 AM CST | Hard Freeze Warning | JAN | 34 hr |
| Jan 27, 3:48 PM CST | Winter Storm Warning | JAN | 26 hr |
| Jan 27, 3:48 PM CST | Winter Weather Advisory | JAN | 26 hr |
| Jan 28, 3:00 PM CST | Hard Freeze Warning | JAN | 43 hr |
| Feb 2, 11:58 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 6, 11:04 AM CST | Winter Weather Advisory | JAN | 5 hr |
| Feb 10, 3:43 AM CST | Winter Storm Warning | JAN | 62 hr |
| Feb 10, 3:43 AM CST | Winter Weather Advisory | JAN | 48 hr |
| Feb 11, 6:30 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 19, 1:28 PM CST | Wind Advisory | JAN | 31 hr |
| Feb 20, 5:55 PM CST | Mesoscale Discussion | SPC | 35 min |
| Feb 20, 6:05 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 20, 9:56 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 2, 8:28 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 2, 10:51 PM CST | Special Weather Statement | JAN | 29 min |
| Mar 4, 4:06 AM CST | Winter Weather Advisory | JAN | 11 hr |
| Mar 7, 2:46 AM CST | Dense Fog Advisory | JAN | 7 hr |
| Mar 11, 2:13 PM CDT | Wind Advisory | JAN | 25 hr |
| Mar 23, 4:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 25, 3:51 AM CDT | Freeze Warning | JAN | 29 hr |
| Mar 25, 4:00 AM CDT | Red Flag Warning | JAN | 15 hr |
| Mar 27, 9:55 PM CDT | Flash Flood Watch | JAN | 7 hr |
| Mar 27, 11:07 PM CDT | Severe Thunderstorm Warning | JAN | 38 min |
| Mar 27, 11:42 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Mar 28, 1:12 AM CDT | Flash Flood Warning | JAN | 2 hr |
| Mar 28, 3:38 PM CDT | Flash Flood Watch | JAN | 11 hr |
| Mar 28, 6:38 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 28, 7:34 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 28, 8:24 PM CDT | Special Weather Statement | JAN | 21 min |
| Mar 28, 10:15 PM CDT | Severe Thunderstorm Warning | JAN | 60 min |
| Mar 28, 10:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 10:55 PM CDT | Severe Thunderstorm Warning | JAN | 50 min |
| Apr 4, 12:20 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 4, 5:25 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 4, 10:12 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 5, 3:01 PM CDT | Flash Flood Watch | JAN | 40 hr |
| Apr 6, 6:56 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 6, 9:54 PM CDT | Flash Flood Warning | JAN | 3 hr |
| Apr 6, 10:44 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| Apr 8, 12:31 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 2:32 PM CDT | Flash Flood Watch | JAN | 31 hr |
| Apr 14, 12:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 1:11 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Apr 15, 3:55 AM CDT | Freeze Warning | JAN | 26 hr |
| Apr 27, 4:21 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 28, 7:16 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 28, 9:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 28, 12:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 28, 12:39 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 28, 6:03 PM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Apr 28, 7:59 PM CDT | Tornado Watch | SPC | 11 hr |
| Apr 29, 12:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 29, 12:46 PM CDT | Tornado Watch | SPC | 10 hr |
| May 28, 4:24 AM CDT | Flash Flood Watch | JAN | 39 hr |
| May 28, 9:30 PM CDT | Special Weather Statement | JAN | 55 min |
| May 28, 11:07 PM CDT | Flash Flood Warning | JAN | 3 hr |
| Jun 8, 7:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 9, 11:43 AM CDT | Flash Flood Watch | JAN | 31 hr |
| Jun 9, 3:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 9, 4:43 PM CDT | Severe Thunderstorm Warning | JAN | 62 min |
| Jun 22, 5:42 PM CDT | Special Weather Statement | JAN | 33 min |
| Jun 28, 2:56 PM CDT | Severe Thunderstorm Warning | JAN | 35 min |
| Jun 28, 7:33 PM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Jul 2, 1:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 2, 2:17 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 5:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 9, 7:34 AM CDT | Special Weather Statement | JAN | 51 min |
| Jul 9, 8:19 AM CDT | Flash Flood Warning | JAN | 116 min |
| Jul 9, 10:12 AM CDT | Flash Flood Warning | JAN | 2 hr |
| Jul 9, 12:13 PM CDT | Flash Flood Warning | JAN | 2 hr |
| Jul 17, 8:47 PM CDT | Flash Flood Watch | JAN | 18 hr |
| Aug 4, 4:59 PM CDT | Special Weather Statement | JAN | 31 min |
| Aug 9, 3:34 PM CDT | Flash Flood Warning | JAN | 116 min |
| Aug 11, 1:01 PM CDT | Special Weather Statement | JAN | 44 min |
| Aug 11, 4:06 PM CDT | Flash Flood Warning | JAN | 114 min |
| Aug 21, 5:39 PM CDT | Severe Thunderstorm Warning | JAN | 44 min |
| Sep 12, 9:14 PM CDT | Flash Flood Warning | JAN | 2 hr |
| Oct 2, 1:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 2, 10:11 PM CDT | Tornado Watch | SPC | 5 hr |
| Oct 2, 11:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Oct 3, 12:30 AM CDT | Special Weather Statement | JAN | 60 min |
| Oct 6, 9:31 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Oct 12, 2:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 13, 7:08 AM CDT | Tornado Watch | SPC | 7 hr |
| Oct 13, 10:20 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Oct 13, 11:52 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 13, 12:57 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 13, 2:11 PM CDT | Severe Thunderstorm Warning | JAN | 64 min |
| Oct 13, 2:29 PM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| Oct 13, 3:28 PM CDT | Flash Flood Warning | JAN | 2 hr |
| Oct 31, 3:23 AM CDT | Freeze Watch | JAN | 25 hr |
| Nov 1, 4:01 AM CDT | Freeze Warning | JAN | 29 hr |
| Nov 12, 4:34 AM CST | Freeze Watch | JAN | 23 hr |
| Nov 13, 3:11 AM CST | Freeze Warning | JAN | 29 hr |
| Dec 1, 3:01 AM CST | Dense Fog Advisory | JAN | 6 hr |
| Dec 15, 4:38 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 23, 7:38 AM CST | Severe Thunderstorm Warning | JAN | 52 min |
| Dec 23, 7:39 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 23, 9:30 AM CST | Tornado Watch | SPC | 11 hr |
| Dec 23, 10:55 AM CST | Special Weather Statement | JAN | 30 min |
| Dec 23, 11:33 AM CST | Mesoscale Discussion | SPC | 87 min |
| Dec 23, 1:02 PM CST | Severe Thunderstorm Warning | JAN | 43 min |
| Dec 23, 2:57 PM CST | Mesoscale Discussion | SPC | 93 min |
| Dec 27, 4:23 AM CST | Flash Flood Watch | JAN | 29 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 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 10 |
| Mesoscale Discussion | 32 |
| Special Weather Statement | 9 |
| Flooding | |
| Flash Flood Warning | 10 |
| Flash Flood Watch | 8 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Weather Advisory | 4 |
| Cold | |
| Freeze Warning | 4 |
| Hard Freeze Warning | 3 |
| Freeze Watch | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.