Alert archive / Mississippi / Clay County

Weather alerts in Clay County, Mississippi, 2018

110 weather alerts in 2018, 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 2018. Tap one for its archive.

Alerts
110
Warnings
38
Watches
17
Advisories
19
Busiest month
June19 alerts
Busiest day
June 3, 20185 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 5 tornado warnings covering Clay County in 2018 had a tornado report inside them.

Clay County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings50100%0
Severe thunderstorm warnings151033%786%13 min
Flash flood warnings2150%5100%65 min

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings912869%7751%15 min
NWS Jackson, MS: severe thunderstorm warnings44925044%72475%25 min
NWS Jackson, MS: flash flood warnings1217439%24585%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.

IssuedProductOfficeLasted
Jan 9, 7:18 PM CSTDense Fog AdvisoryJAN10 hr
Jan 11, 11:02 AM CSTWinter Weather AdvisoryJAN31 hr
Jan 15, 4:14 AM CSTWinter Storm WatchJAN11 hr
Jan 15, 2:45 PM CSTWind Chill AdvisoryJAN45 hr
Jan 15, 2:45 PM CSTWinter Weather AdvisoryJAN33 hr
Jan 15, 2:56 PM CSTHard Freeze WarningJAN69 hr
Feb 6, 4:31 PM CSTFlash Flood WatchJAN16 hr
Feb 11, 9:52 AM CSTRiver Flood WarningJAN3 days
Feb 24, 5:29 PM CSTMesoscale DiscussionSPC91 min
Feb 26, 9:39 AM CSTRiver Flood WarningJAN4 days
Mar 7, 2:03 AM CSTFreeze WarningJAN30 hr
Mar 7, 2:52 PM CSTFreeze WatchJAN12 hr
Mar 8, 3:03 AM CSTFreeze WarningJAN29 hr
Mar 10, 7:56 AM CSTRiver Flood WarningJAN4 days
Mar 12, 3:12 PM CDTFreeze WatchJAN24 hr
Mar 13, 4:46 AM CDTFreeze WarningJAN28 hr
Mar 13, 3:19 PM CDTFreeze WatchJAN23 hr
Mar 14, 2:07 PM CDTFreeze WarningJAN18 hr
Mar 19, 3:54 AM CDTMesoscale DiscussionSPC2 hr
Mar 19, 4:55 AM CDTDense Fog AdvisoryJAN5 hr
Mar 19, 2:06 PM CDTMesoscale DiscussionSPC84 min
Mar 19, 3:28 PM CDTTornado Watch PDSSPC9 hr
Mar 28, 9:54 AM CDTRiver Flood WarningJAN5 days
Mar 28, 3:27 PM CDTTornado WatchSPC8 hr
Mar 28, 8:27 PM CDTMesoscale DiscussionSPC93 min
Mar 28, 8:43 PM CDTTornado WarningJAN46 min
Apr 3, 6:51 PM CDTMesoscale DiscussionSPC114 min
Apr 3, 7:43 PM CDTMesoscale DiscussionSPC92 min
Apr 3, 8:13 PM CDTSevere Thunderstorm WatchSPC3 hr
Apr 3, 8:55 PM CDTSevere Thunderstorm WarningJAN65 min
Apr 5, 8:33 PM CDTRiver Flood WarningJAN5 days
Apr 7, 3:45 AM CDTFreeze WarningJAN28 hr
Apr 12, 2:51 PM CDTFlash Flood WatchJAN52 hr
Apr 13, 10:52 AM CDTRiver Flood WarningJAN47 hr
Apr 14, 4:35 AM CDTMesoscale DiscussionSPC115 min
Apr 14, 6:57 AM CDTTornado WatchSPC7 hr
Apr 14, 9:52 AM CDTSevere Thunderstorm WarningJAN68 min
Apr 14, 10:06 AM CDTTornado WarningJAN54 min
Apr 27, 12:58 AM CDTDense Fog AdvisoryJAN8 hr
May 6, 3:48 AM CDTDense Fog AdvisoryJAN5 hr
May 16, 7:02 PM CDTSevere Thunderstorm WarningJAN28 min
May 26, 8:22 PM CDTSpecial Weather StatementJAN23 min
May 30, 4:20 PM CDTSevere Thunderstorm WarningJAN40 min
Jun 1, 12:25 PM CDTMesoscale DiscussionSPC3 hr
Jun 3, 1:32 AM CDTMesoscale DiscussionSPC118 min
Jun 3, 1:55 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 3, 3:04 AM CDTSpecial Weather StatementJAN56 min
Jun 3, 3:11 AM CDTSpecial Weather StatementMEG34 min
Jun 3, 3:54 AM CDTMesoscale DiscussionSPC66 min
Jun 9, 7:32 PM CDTSpecial Weather StatementJAN28 min
Jun 17, 7:56 PM CDTSevere Thunderstorm WarningJAN49 min
Jun 20, 6:05 PM CDTSpecial Weather StatementJAN25 min
Jun 22, 12:15 AM CDTSevere Thunderstorm WarningJAN45 min
Jun 22, 9:09 AM CDTMesoscale DiscussionSPC96 min
Jun 22, 12:35 PM CDTMesoscale DiscussionSPC85 min
Jun 23, 7:17 AM CDTMesoscale DiscussionSPC118 min
Jun 23, 4:50 PM CDTMesoscale DiscussionSPC115 min
Jun 23, 6:55 PM CDTSpecial Weather StatementJAN35 min
Jun 26, 3:25 PM CDTHeat AdvisoryJAN30 hr
Jun 27, 2:43 PM CDTHeat AdvisoryJAN29 hr
Jun 28, 4:59 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 28, 6:09 PM CDTSpecial Weather StatementJAN66 min
Jul 4, 3:02 PM CDTMesoscale DiscussionSPC58 min
Jul 6, 4:09 PM CDTSpecial Weather StatementJAN51 min
Jul 6, 4:18 PM CDTSevere Thunderstorm WarningJAN57 min
Jul 13, 4:42 AM CDTHeat AdvisoryJAN14 hr
Jul 15, 3:55 AM CDTHeat AdvisoryJAN15 hr
Jul 17, 7:54 PM CDTSevere Thunderstorm WarningJAN46 min
Jul 19, 3:13 PM CDTHeat AdvisoryJAN29 hr
Aug 6, 1:30 PM CDTSevere Thunderstorm WarningJAN45 min
Aug 7, 3:29 PM CDTSpecial Weather StatementJAN31 min
Aug 12, 4:09 PM CDTFlash Flood WarningJAN2 hr
Aug 16, 12:50 PM CDTSpecial Weather StatementJAN25 min
Aug 16, 2:41 PM CDTSpecial Weather StatementJAN34 min
Aug 16, 2:57 PM CDTSevere Thunderstorm WarningJAN33 min
Aug 20, 5:57 PM CDTMesoscale DiscussionSPC63 min
Aug 20, 7:45 PM CDTSevere Thunderstorm WarningJAN30 min
Aug 20, 9:23 PM CDTSpecial Weather StatementJAN52 min
Aug 29, 5:53 PM CDTSpecial Weather StatementJAN37 min
Aug 29, 6:42 PM CDTSevere Thunderstorm WarningJAN48 min
Sep 5, 2:07 PM CDTSpecial Weather StatementJAN38 min
Sep 5, 2:23 PM CDTTornado WarningJAN37 min
Sep 5, 2:44 PM CDTTornado WarningJAN46 min
Sep 9, 6:18 PM CDTFlash Flood WarningJAN4 hr
Oct 31, 11:07 PM CDTTornado WatchSPC9 hr
Nov 1, 4:26 AM CDTSevere Thunderstorm WarningJAN49 min
Nov 1, 4:30 AM CDTMesoscale DiscussionSPC2 hr
Nov 1, 5:08 AM CDTSevere Thunderstorm WarningJAN67 min
Nov 4, 9:50 PM CSTDense Fog AdvisoryJAN10 hr
Nov 5, 11:31 PM CSTMesoscale DiscussionSPC59 min
Nov 6, 1:27 AM CSTTornado WarningJAN37 min
Nov 8, 5:48 PM CSTFreeze WatchJAN10 hr
Nov 9, 3:22 AM CSTFreeze WarningJAN30 hr
Nov 10, 3:41 AM CSTFreeze WarningJAN24 hr
Nov 13, 3:34 PM CSTFreeze WatchJAN18 hr
Nov 14, 9:33 AM CSTFreeze WarningJAN23 hr
Nov 14, 6:19 PM CSTSpecial Weather StatementJAN3 hr
Nov 24, 10:04 PM CSTDense Fog AdvisoryJAN11 hr
Dec 7, 8:13 PM CSTRiver Flood WarningJAN37 hr
Dec 11, 3:44 AM CSTFreezing Fog AdvisoryJAN6 hr
Dec 11, 10:08 AM CSTFreezing Fog AdvisoryJAN52 min
Dec 16, 2:23 PM CSTDense Fog AdvisoryJAN20 hr
Dec 18, 12:32 AM CSTDense Fog AdvisoryJAN9 hr
Dec 26, 3:44 AM CSTFlash Flood WatchJAN52 hr
Dec 26, 12:40 PM CSTWind AdvisoryJAN27 hr
Dec 27, 12:54 PM CSTSpecial Weather StatementJAN51 min
Dec 31, 11:22 AM CSTMesoscale DiscussionSPC83 min
Dec 31, 11:47 AM CSTTornado WatchSPC5 hr
Dec 31, 12:48 PM CSTSevere Thunderstorm WarningJAN27 min
Dec 31, 12:55 PM CSTSpecial Weather StatementJAN50 min

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 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.