Alert archive / Mississippi / Warren County

Weather alerts in Warren County, Mississippi, 2020

131 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Warren County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
131
Warnings
42
Watches
23
Advisories
23
Busiest month
April26 alerts
Busiest day
April 12, 20208 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Warren County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings261927%1258%31 min
Flash flood warnings550%1080%43 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings603738%14985%26 min
NWS Jackson, MS: severe thunderstorm warnings42326837%89883%26 min
NWS Jackson, MS: flash flood warnings1087332%27685%87 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 1, 3:07 AM CSTFlash Flood WatchJAN57 hr
Jan 2, 2:15 PM CSTMesoscale DiscussionSPC3 hr
Jan 8, 11:38 AM CSTRiver Flood AdvisoryJAN51 hr
Jan 9, 2:27 PM CSTWind AdvisoryJAN48 hr
Jan 10, 4:53 AM CSTMesoscale DiscussionSPC2 hr
Jan 10, 11:43 AM CSTRiver Flood WarningJAN131 days
Jan 11, 2:22 AM CSTMesoscale DiscussionSPC53 min
Jan 11, 2:37 AM CSTTornado WatchSPC8 hr
Jan 11, 4:31 AM CSTMesoscale DiscussionSPC59 min
Jan 11, 5:10 AM CSTSevere Thunderstorm WarningJAN65 min
Jan 11, 6:13 AM CSTSevere Thunderstorm WarningJAN62 min
Jan 11, 6:27 AM CSTSevere Thunderstorm WarningJAN63 min
Jan 13, 8:05 AM CSTDense Fog AdvisoryJAN3 hr
Jan 14, 3:00 AM CSTFlash Flood WatchJAN21 hr
Jan 14, 6:35 AM CSTSpecial Weather StatementJAN40 min
Jan 14, 10:41 AM CSTFlash Flood WarningJAN3 hr
Jan 14, 2:12 PM CSTAreal Flood WarningJAN9 hr
Jan 28, 12:33 AM CSTDense Fog AdvisoryJAN10 hr
Feb 5, 10:28 AM CSTMesoscale DiscussionSPC92 min
Feb 5, 11:49 AM CSTTornado WatchSPC6 hr
Feb 5, 1:39 PM CSTMesoscale DiscussionSPC96 min
Feb 5, 3:01 PM CSTSevere Thunderstorm WarningJAN44 min
Feb 5, 3:41 PM CSTMesoscale DiscussionSPC64 min
Feb 5, 3:42 PM CSTSpecial Weather StatementJAN48 min
Feb 5, 4:13 PM CSTSevere Thunderstorm WarningJAN32 min
Feb 7, 10:23 AM CSTRiver Flood WarningJAN38 days
Feb 9, 4:42 AM CSTFlash Flood WatchJAN47 hr
Feb 9, 11:26 PM CSTSevere Thunderstorm WarningJAN64 min
Feb 10, 12:06 AM CSTSevere Thunderstorm WarningJAN24 min
Feb 10, 12:39 PM CSTMesoscale DiscussionSPC2 hr
Feb 10, 1:36 PM CSTFlash Flood WarningJAN3 hr
Feb 10, 6:01 PM CSTMesoscale DiscussionSPC89 min
Feb 11, 2:05 AM CSTAreal Flood WarningJAN6 hr
Feb 11, 3:34 AM CSTFlash Flood WatchJAN49 hr
Feb 12, 1:46 PM CSTMesoscale DiscussionSPC119 min
Feb 17, 2:14 PM CSTFlash Flood WatchJAN31 hr
Feb 19, 2:59 PM CSTFlash Flood WatchJAN18 hr
Feb 25, 5:04 AM CSTDense Fog AdvisoryJAN4 hr
Mar 3, 2:38 PM CSTFlash Flood WatchJAN39 hr
Mar 4, 1:19 AM CSTMesoscale DiscussionSPC2 hr
Mar 4, 1:53 AM CSTTornado WatchSPC8 hr
Mar 4, 8:47 AM CSTSevere Thunderstorm WarningJAN58 min
Mar 4, 10:50 AM CSTMesoscale DiscussionSPC115 min
Mar 28, 7:46 PM CDTMesoscale DiscussionSPC89 min
Mar 28, 9:58 PM CDTTornado WatchSPC7 hr
Mar 31, 3:16 AM CDTMesoscale DiscussionSPC119 min
Apr 8, 12:13 PM CDTMesoscale DiscussionSPC2 hr
Apr 11, 3:44 PM CDTWind AdvisoryJAN30 hr
Apr 12, 7:18 AM CDTMesoscale DiscussionSPC87 min
Apr 12, 10:24 AM CDTMesoscale DiscussionSPC96 min
Apr 12, 10:41 AM CDTTornado Watch PDSSPC10 hr
Apr 12, 12:03 PM CDTMesoscale DiscussionSPC87 min
Apr 12, 12:21 PM CDTSevere Thunderstorm WarningJAN54 min
Apr 12, 4:49 PM CDTSevere Thunderstorm WarningJAN41 min
Apr 12, 5:21 PM CDTSevere Thunderstorm WarningJAN39 min
Apr 12, 5:44 PM CDTMesoscale DiscussionSPC91 min
Apr 18, 4:31 AM CDTFlash Flood WatchJAN41 hr
Apr 18, 11:07 AM CDTRiver Flood WarningJAN17 days
Apr 19, 11:06 AM CDTMesoscale DiscussionSPC54 min
Apr 19, 11:45 AM CDTTornado WatchSPC9 hr
Apr 19, 2:08 PM CDTSevere Thunderstorm WarningJAN67 min
Apr 19, 2:30 PM CDTSevere Thunderstorm WarningJAN45 min
Apr 19, 3:07 PM CDTMesoscale DiscussionSPC113 min
Apr 19, 3:09 PM CDTFlash Flood WarningJAN4 hr
Apr 21, 2:16 PM CDTFlash Flood WatchJAN44 hr
Apr 22, 8:10 PM CDTSevere Thunderstorm WarningJAN65 min
Apr 22, 9:47 PM CDTTornado WatchSPC9 hr
Apr 23, 12:35 AM CDTSevere Thunderstorm WarningJAN55 min
Apr 23, 12:38 AM CDTFlash Flood WarningJAN3 hr
Apr 28, 11:57 PM CDTMesoscale DiscussionSPC63 min
Apr 29, 12:48 AM CDTSevere Thunderstorm WatchSPC4 hr
Apr 29, 4:59 AM CDTSpecial Weather StatementJAN61 min
May 8, 11:51 AM CDTSpecial Weather StatementJAN54 min
May 16, 6:21 PM CDTMesoscale DiscussionSPC84 min
May 17, 11:51 AM CDTSpecial Weather StatementJAN24 min
May 17, 12:54 PM CDTMesoscale DiscussionSPC2 hr
May 23, 11:56 AM CDTMesoscale DiscussionSPC94 min
May 23, 1:47 PM CDTSevere Thunderstorm WarningJAN58 min
May 23, 2:27 PM CDTSevere Thunderstorm WarningJAN63 min
May 25, 1:58 PM CDTSpecial Weather StatementJAN32 min
May 25, 2:06 PM CDTSevere Thunderstorm WarningJAN39 min
May 25, 2:30 PM CDTSpecial Weather StatementJAN30 min
May 26, 11:56 AM CDTRiver Flood WarningJAN21 days
Jun 5, 2:07 PM CDTMesoscale DiscussionSPC83 min
Jun 5, 2:49 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 5, 6:11 PM CDTSevere Thunderstorm WarningJAN79 min
Jun 5, 7:13 PM CDTSevere Thunderstorm WarningJAN77 min
Jun 6, 4:24 PM CDTFlash Flood WatchJAN57 hr
Jun 7, 11:26 AM CDTWind AdvisoryJAN22 hr
Jun 21, 6:31 PM CDTSevere Thunderstorm WarningJAN44 min
Jun 22, 10:15 AM CDTSevere Thunderstorm WarningJAN45 min
Jun 22, 11:01 AM CDTSpecial Weather StatementJAN59 min
Jul 2, 4:44 PM CDTMesoscale DiscussionSPC2 hr
Jul 3, 7:43 AM CDTSevere Thunderstorm WarningJAN31 min
Jul 4, 2:17 PM CDTSpecial Weather StatementJAN28 min
Jul 10, 2:38 AM CDTHeat AdvisoryJAN16 hr
Jul 10, 3:19 PM CDTHeat AdvisoryJAN28 hr
Jul 11, 3:53 AM CDTExcessive Heat WarningJAN15 hr
Jul 11, 2:32 PM CDTHeat AdvisoryJAN28 hr
Jul 12, 2:51 PM CDTHeat AdvisoryJAN28 hr
Jul 13, 2:58 PM CDTHeat AdvisoryJAN28 hr
Jul 14, 2:15 PM CDTMesoscale DiscussionSPC90 min
Jul 14, 2:22 PM CDTHeat AdvisoryJAN29 hr
Jul 15, 7:16 PM CDTHeat AdvisoryJAN24 hr
Jul 31, 12:35 PM CDTMesoscale DiscussionSPC85 min
Jul 31, 1:21 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 11, 4:15 AM CDTHeat AdvisoryJAN14 hr
Aug 13, 7:56 AM CDTFlash Flood WarningJAN3 hr
Aug 13, 6:36 PM CDTRiver Flood WarningJAN12 hr
Aug 16, 3:18 AM CDTHeat AdvisoryJAN15 hr
Aug 20, 5:42 PM CDTSpecial Weather StatementJAN33 min
Aug 27, 4:59 AM CDTWind AdvisoryJAN26 hr
Aug 27, 6:36 AM CDTMesoscale DiscussionSPC114 min
Aug 27, 7:47 AM CDTTornado WatchSPC8 hr
Aug 28, 3:16 PM CDTHeat AdvisoryJAN28 hr
Aug 31, 2:39 AM CDTHeat AdvisoryJAN16 hr
Aug 31, 6:19 PM CDTSpecial Weather StatementJAN26 min
Sep 1, 2:49 AM CDTHeat AdvisoryJAN16 hr
Sep 23, 3:56 AM CDTFlash Flood WatchJAN30 hr
Sep 27, 4:02 AM CDTDense Fog AdvisoryJAN6 hr
Oct 7, 4:01 PM CDTFlash Flood WatchJAN63 hr
Oct 8, 9:58 AM CDTTropical Storm WarningJAN48 hr
Nov 25, 6:20 AM CSTSevere Thunderstorm WarningJAN40 min
Nov 30, 2:07 PM CSTFreeze WarningJAN19 hr
Dec 12, 8:58 PM CSTDense Fog AdvisoryJAN12 hr
Dec 13, 6:57 PM CSTSpecial Weather StatementJAN48 min
Dec 13, 7:16 PM CSTSevere Thunderstorm WarningJAN59 min
Dec 13, 7:34 PM CSTSevere Thunderstorm WarningJAN41 min
Dec 20, 7:57 PM CSTDense Fog AdvisoryJAN13 hr
Dec 23, 9:40 PM CSTSpecial Weather StatementJAN35 min
Dec 24, 9:12 AM CSTRiver Flood WarningJAN48 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 archive20192021

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.