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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings14843%580%24 min
Flash flood warnings10460%1100%48 min

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings872769%14787%27 min
NWS Jackson, MS: severe thunderstorm warnings46726144%61670%20 min
NWS Jackson, MS: flash flood warnings1216844%12490%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.

IssuedProductOfficeLasted
Jan 4, 2:56 PM CSTHard Freeze WarningJAN4 days
Jan 10, 11:41 PM CSTMesoscale DiscussionSPC2 hr
Jan 17, 9:01 AM CSTFire Weather WatchJAN19 hr
Jan 17, 9:01 AM CSTRed Flag WarningJAN9 hr
Jan 18, 3:52 AM CSTRed Flag WarningJAN14 hr
Jan 21, 8:59 AM CSTWind AdvisoryJAN6 hr
Jan 23, 4:40 AM CSTWind Chill AdvisoryJAN28 hr
Jan 26, 2:23 PM CSTWind AdvisoryJAN24 hr
Jan 27, 4:50 AM CSTHard Freeze WarningJAN34 hr
Jan 27, 3:48 PM CSTWinter Storm WarningJAN26 hr
Jan 27, 3:48 PM CSTWinter Weather AdvisoryJAN26 hr
Jan 28, 3:00 PM CSTHard Freeze WarningJAN43 hr
Feb 2, 11:58 AM CSTMesoscale DiscussionSPC2 hr
Feb 6, 11:04 AM CSTWinter Weather AdvisoryJAN5 hr
Feb 10, 3:43 AM CSTWinter Storm WarningJAN62 hr
Feb 10, 3:43 AM CSTWinter Weather AdvisoryJAN48 hr
Feb 11, 6:30 PM CSTMesoscale DiscussionSPC2 hr
Feb 19, 1:28 PM CSTWind AdvisoryJAN31 hr
Feb 20, 5:55 PM CSTMesoscale DiscussionSPC35 min
Feb 20, 6:05 PM CSTTornado WatchSPC7 hr
Feb 20, 9:56 PM CSTMesoscale DiscussionSPC2 hr
Mar 2, 8:28 PM CSTMesoscale DiscussionSPC2 hr
Mar 2, 10:51 PM CSTSpecial Weather StatementJAN29 min
Mar 4, 4:06 AM CSTWinter Weather AdvisoryJAN11 hr
Mar 7, 2:46 AM CSTDense Fog AdvisoryJAN7 hr
Mar 11, 2:13 PM CDTWind AdvisoryJAN25 hr
Mar 23, 4:35 AM CDTMesoscale DiscussionSPC85 min
Mar 25, 3:51 AM CDTFreeze WarningJAN29 hr
Mar 25, 4:00 AM CDTRed Flag WarningJAN15 hr
Mar 27, 9:55 PM CDTFlash Flood WatchJAN7 hr
Mar 27, 11:07 PM CDTSevere Thunderstorm WarningJAN38 min
Mar 27, 11:42 PM CDTSevere Thunderstorm WarningJAN48 min
Mar 28, 1:12 AM CDTFlash Flood WarningJAN2 hr
Mar 28, 3:38 PM CDTFlash Flood WatchJAN11 hr
Mar 28, 6:38 PM CDTMesoscale DiscussionSPC3 hr
Mar 28, 7:34 PM CDTTornado WatchSPC7 hr
Mar 28, 8:24 PM CDTSpecial Weather StatementJAN21 min
Mar 28, 10:15 PM CDTSevere Thunderstorm WarningJAN60 min
Mar 28, 10:15 PM CDTMesoscale DiscussionSPC2 hr
Mar 28, 10:55 PM CDTSevere Thunderstorm WarningJAN50 min
Apr 4, 12:20 AM CDTMesoscale DiscussionSPC55 min
Apr 4, 5:25 AM CDTSevere Thunderstorm WatchSPC7 hr
Apr 4, 10:12 AM CDTMesoscale DiscussionSPC63 min
Apr 5, 3:01 PM CDTFlash Flood WatchJAN40 hr
Apr 6, 6:56 PM CDTTornado WatchSPC8 hr
Apr 6, 9:54 PM CDTFlash Flood WarningJAN3 hr
Apr 6, 10:44 PM CDTSevere Thunderstorm WarningJAN46 min
Apr 8, 12:31 PM CDTMesoscale DiscussionSPC2 hr
Apr 13, 2:32 PM CDTFlash Flood WatchJAN31 hr
Apr 14, 12:30 PM CDTMesoscale DiscussionSPC2 hr
Apr 14, 1:11 PM CDTSevere Thunderstorm WatchSPC10 hr
Apr 15, 3:55 AM CDTFreeze WarningJAN26 hr
Apr 27, 4:21 PM CDTMesoscale DiscussionSPC114 min
Apr 28, 7:16 AM CDTMesoscale DiscussionSPC89 min
Apr 28, 9:53 AM CDTMesoscale DiscussionSPC97 min
Apr 28, 12:05 PM CDTMesoscale DiscussionSPC115 min
Apr 28, 12:39 PM CDTTornado Watch PDSSPC8 hr
Apr 28, 6:03 PM CDTSevere Thunderstorm WarningJAN42 min
Apr 28, 7:59 PM CDTTornado WatchSPC11 hr
Apr 29, 12:02 PM CDTMesoscale DiscussionSPC88 min
Apr 29, 12:46 PM CDTTornado WatchSPC10 hr
May 28, 4:24 AM CDTFlash Flood WatchJAN39 hr
May 28, 9:30 PM CDTSpecial Weather StatementJAN55 min
May 28, 11:07 PM CDTFlash Flood WarningJAN3 hr
Jun 8, 7:47 PM CDTMesoscale DiscussionSPC88 min
Jun 9, 11:43 AM CDTFlash Flood WatchJAN31 hr
Jun 9, 3:22 PM CDTMesoscale DiscussionSPC83 min
Jun 9, 4:43 PM CDTSevere Thunderstorm WarningJAN62 min
Jun 22, 5:42 PM CDTSpecial Weather StatementJAN33 min
Jun 28, 2:56 PM CDTSevere Thunderstorm WarningJAN35 min
Jun 28, 7:33 PM CDTSevere Thunderstorm WarningJAN42 min
Jul 2, 1:41 PM CDTMesoscale DiscussionSPC94 min
Jul 2, 2:17 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 2, 5:36 PM CDTMesoscale DiscussionSPC54 min
Jul 9, 7:34 AM CDTSpecial Weather StatementJAN51 min
Jul 9, 8:19 AM CDTFlash Flood WarningJAN116 min
Jul 9, 10:12 AM CDTFlash Flood WarningJAN2 hr
Jul 9, 12:13 PM CDTFlash Flood WarningJAN2 hr
Jul 17, 8:47 PM CDTFlash Flood WatchJAN18 hr
Aug 4, 4:59 PM CDTSpecial Weather StatementJAN31 min
Aug 9, 3:34 PM CDTFlash Flood WarningJAN116 min
Aug 11, 1:01 PM CDTSpecial Weather StatementJAN44 min
Aug 11, 4:06 PM CDTFlash Flood WarningJAN114 min
Aug 21, 5:39 PM CDTSevere Thunderstorm WarningJAN44 min
Sep 12, 9:14 PM CDTFlash Flood WarningJAN2 hr
Oct 2, 1:57 PM CDTMesoscale DiscussionSPC93 min
Oct 2, 10:11 PM CDTTornado WatchSPC5 hr
Oct 2, 11:50 PM CDTMesoscale DiscussionSPC115 min
Oct 3, 12:30 AM CDTSpecial Weather StatementJAN60 min
Oct 6, 9:31 AM CDTMesoscale DiscussionSPC119 min
Oct 12, 2:30 PM CDTMesoscale DiscussionSPC3 hr
Oct 13, 7:08 AM CDTTornado WatchSPC7 hr
Oct 13, 10:20 AM CDTMesoscale DiscussionSPC115 min
Oct 13, 11:52 AM CDTMesoscale DiscussionSPC113 min
Oct 13, 12:57 PM CDTTornado WatchSPC7 hr
Oct 13, 2:11 PM CDTSevere Thunderstorm WarningJAN64 min
Oct 13, 2:29 PM CDTSevere Thunderstorm WarningJAN47 min
Oct 13, 3:28 PM CDTFlash Flood WarningJAN2 hr
Oct 31, 3:23 AM CDTFreeze WatchJAN25 hr
Nov 1, 4:01 AM CDTFreeze WarningJAN29 hr
Nov 12, 4:34 AM CSTFreeze WatchJAN23 hr
Nov 13, 3:11 AM CSTFreeze WarningJAN29 hr
Dec 1, 3:01 AM CSTDense Fog AdvisoryJAN6 hr
Dec 15, 4:38 PM CSTMesoscale DiscussionSPC2 hr
Dec 23, 7:38 AM CSTSevere Thunderstorm WarningJAN52 min
Dec 23, 7:39 AM CSTMesoscale DiscussionSPC3 hr
Dec 23, 9:30 AM CSTTornado WatchSPC11 hr
Dec 23, 10:55 AM CSTSpecial Weather StatementJAN30 min
Dec 23, 11:33 AM CSTMesoscale DiscussionSPC87 min
Dec 23, 1:02 PM CSTSevere Thunderstorm WarningJAN43 min
Dec 23, 2:57 PM CSTMesoscale DiscussionSPC93 min
Dec 27, 4:23 AM CSTFlash Flood WatchJAN29 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.