Alert archive / Mississippi / Webster County

Weather alerts in Webster County, Mississippi, 2020

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

Webster County and its neighbors

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

Alerts
94
Warnings
25
Watches
16
Advisories
13
Busiest month
April17 alerts
Busiest day
January 11, 20206 alerts

Over time

By month

Warning verification

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

Webster County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings171041%3100%33 min
Flash flood warnings6433%20%

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 9, 2:27 PM CSTWind AdvisoryJAN48 hr
Jan 11, 2:37 AM CSTTornado WatchSPC8 hr
Jan 11, 5:14 AM CSTSevere Thunderstorm WarningJAN48 min
Jan 11, 7:18 AM CSTSevere Thunderstorm WarningJAN57 min
Jan 11, 8:20 AM CSTSevere Thunderstorm WarningJAN55 min
Jan 11, 9:06 AM CSTFlash Flood WarningJAN4 hr
Jan 11, 4:28 PM CSTAreal Flood WarningJAN12 hr
Jan 13, 8:05 AM CSTDense Fog AdvisoryJAN3 hr
Jan 14, 3:00 AM CSTFlash Flood WatchJAN21 hr
Feb 5, 11:49 AM CSTTornado WatchSPC6 hr
Feb 5, 1:39 PM CSTMesoscale DiscussionSPC96 min
Feb 5, 3:41 PM CSTMesoscale DiscussionSPC64 min
Feb 5, 6:11 PM CSTSpecial Weather StatementJAN34 min
Feb 9, 4:42 AM CSTFlash Flood WatchJAN47 hr
Feb 10, 1:37 AM CSTSevere Thunderstorm WarningJAN53 min
Feb 10, 3:03 PM CSTFlash Flood WarningJAN6 hr
Feb 10, 11:13 PM CSTFlash Flood WarningJAN5 hr
Feb 11, 3:34 AM CSTFlash Flood WatchJAN49 hr
Feb 12, 1:46 PM CSTMesoscale DiscussionSPC119 min
Feb 12, 3:44 PM CSTSpecial Weather StatementJAN46 min
Feb 17, 2:14 PM CSTFlash Flood WatchJAN31 hr
Feb 18, 2:06 PM CSTFlash Flood WarningJAN3 hr
Mar 3, 2:52 AM CSTMesoscale DiscussionSPC2 hr
Mar 11, 12:26 PM CDTSevere Thunderstorm WatchSPC5 hr
Mar 11, 2:29 PM CDTMesoscale DiscussionSPC91 min
Mar 22, 11:24 PM CDTMesoscale DiscussionSPC2 hr
Mar 23, 2:10 AM CDTSevere Thunderstorm WarningJAN50 min
Mar 23, 2:58 AM CDTSevere Thunderstorm WarningJAN32 min
Mar 28, 8:25 PM CDTMesoscale DiscussionSPC95 min
Mar 28, 9:58 PM CDTTornado WatchSPC7 hr
Mar 28, 11:27 PM CDTMesoscale DiscussionSPC93 min
Apr 8, 12:13 PM CDTMesoscale DiscussionSPC2 hr
Apr 9, 4:22 AM CDTSpecial Weather StatementJAN38 min
Apr 9, 4:25 AM CDTSevere Thunderstorm WarningJAN50 min
Apr 11, 3:44 PM CDTWind AdvisoryJAN30 hr
Apr 12, 10:24 AM CDTMesoscale DiscussionSPC96 min
Apr 12, 10:41 AM CDTTornado Watch PDSSPC10 hr
Apr 12, 5:40 PM CDTFlash Flood Warning Considerable damage threatJAN4 hr
Apr 12, 5:44 PM CDTMesoscale DiscussionSPC91 min
Apr 12, 6:39 PM CDTSevere Thunderstorm WarningJAN51 min
Apr 12, 9:44 PM CDTMesoscale DiscussionSPC91 min
Apr 12, 10:05 PM CDTSevere Thunderstorm WarningJAN55 min
Apr 17, 11:22 PM CDTSpecial Weather StatementJAN23 min
Apr 18, 4:31 AM CDTFlash Flood WatchJAN41 hr
Apr 19, 2:34 AM CDTMesoscale DiscussionSPC116 min
Apr 19, 5:23 AM CDTSpecial Weather StatementJAN52 min
Apr 21, 2:16 PM CDTFlash Flood WatchJAN44 hr
Apr 29, 2:06 AM CDTSpecial Weather StatementJAN54 min
May 6, 4:50 AM CDTWind AdvisoryJAN14 hr
May 7, 3:58 PM CDTWind AdvisoryJAN27 hr
May 8, 10:51 AM CDTSpecial Weather StatementJAN54 min
May 17, 12:54 PM CDTMesoscale DiscussionSPC2 hr
May 17, 5:23 PM CDTSpecial Weather StatementJAN52 min
May 17, 5:29 PM CDTSevere Thunderstorm WarningJAN32 min
May 27, 4:48 PM CDTSpecial Weather StatementJAN57 min
May 27, 5:49 PM CDTSpecial Weather StatementJAN41 min
May 27, 5:55 PM CDTSevere Thunderstorm WarningJAN26 min
Jun 5, 2:07 PM CDTMesoscale DiscussionSPC83 min
Jun 5, 2:49 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 5, 3:42 PM CDTSevere Thunderstorm WarningJAN93 min
Jun 6, 4:24 PM CDTFlash Flood WatchJAN57 hr
Jun 7, 11:26 AM CDTWind AdvisoryJAN22 hr
Jun 8, 1:09 PM CDTMesoscale DiscussionSPC3 hr
Jun 8, 4:09 PM CDTSpecial Weather StatementJAN51 min
Jun 8, 5:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 8, 5:35 PM CDTSpecial Weather StatementJAN55 min
Jun 23, 12:01 PM CDTMesoscale DiscussionSPC2 hr
Jun 23, 3:37 PM CDTSevere Thunderstorm WarningJAN38 min
Jun 23, 3:45 PM CDTSpecial Weather StatementJAN30 min
Jul 1, 6:28 PM CDTSpecial Weather StatementJAN47 min
Jul 9, 6:07 PM CDTSpecial Weather StatementJAN38 min
Jul 13, 7:48 AM CDTDense Fog AdvisoryJAN72 min
Jul 14, 2:22 PM CDTHeat AdvisoryJAN29 hr
Jul 15, 7:16 PM CDTHeat AdvisoryJAN24 hr
Jul 21, 2:05 PM CDTSpecial Weather StatementJAN40 min
Jul 25, 10:18 PM CDTSpecial Weather StatementJAN27 min
Jul 31, 12:35 PM CDTMesoscale DiscussionSPC85 min
Jul 31, 1:21 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 31, 4:36 PM CDTSevere Thunderstorm WarningJAN39 min
Jul 31, 5:11 PM CDTSevere Thunderstorm WarningJAN28 min
Aug 11, 6:46 PM CDTSevere Thunderstorm WarningJAN30 min
Aug 16, 12:30 PM CDTSpecial Weather StatementJAN45 min
Aug 16, 1:18 PM CDTSevere Thunderstorm WarningJAN57 min
Aug 27, 2:41 PM CDTMesoscale DiscussionSPC94 min
Aug 30, 1:39 PM CDTMesoscale DiscussionSPC3 hr
Aug 30, 2:58 PM CDTSpecial Weather StatementJAN62 min
Aug 30, 3:17 PM CDTFlash Flood WarningJAN2 hr
Sep 23, 3:56 AM CDTFlash Flood WatchJAN30 hr
Sep 27, 4:02 AM CDTDense Fog AdvisoryJAN6 hr
Oct 9, 4:20 AM CDTWind AdvisoryJAN33 hr
Nov 11, 7:15 AM CSTDense Fog AdvisoryJAN106 min
Nov 30, 2:07 PM CSTFreeze WarningJAN19 hr
Dec 20, 7:57 PM CSTDense Fog AdvisoryJAN13 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.