Alert archive / Mississippi / Hancock County

Weather alerts in Hancock County, Mississippi, 2020

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

Hancock County and its neighbors

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

Alerts
129
Warnings
29
Watches
9
Advisories
10
Busiest month
July28 alerts
Busiest day
April 20, 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.

1 of 3 tornado warnings covering Hancock County in 2020 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Hancock County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings3167%10%
Severe thunderstorm warnings14193%10%
Flash flood warnings30100%0

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS New Orleans, LA: tornado warnings991090%3749%10 min
NWS New Orleans, LA: severe thunderstorm warnings1333077%12349%17 min
NWS New Orleans, LA: flash flood warnings301163%2770%77 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 11, 5:18 AM CSTTornado WatchSPC7 hr
Jan 11, 7:39 AM CSTMesoscale DiscussionSPC96 min
Jan 11, 9:52 AM CSTSpecial Weather StatementLIX68 min
Feb 5, 8:28 AM CSTRiver Flood WarningLIX47 days
Feb 5, 10:38 AM CSTSpecial Weather StatementLIX52 min
Feb 5, 11:16 AM CSTMesoscale DiscussionSPC119 min
Feb 5, 1:41 PM CSTSevere Thunderstorm WarningLIX18 min
Feb 6, 4:20 AM CSTSpecial Weather StatementLIX40 min
Feb 6, 6:20 AM CSTSpecial Weather StatementLIX55 min
Mar 4, 1:57 PM CSTMesoscale DiscussionSPC2 hr
Mar 4, 5:05 PM CSTMesoscale DiscussionSPC2 hr
Apr 9, 10:46 PM CDTSpecial Weather StatementLIX59 min
Apr 9, 11:23 PM CDTSevere Thunderstorm WarningLIX37 min
Apr 9, 11:49 PM CDTSpecial Weather StatementLIX56 min
Apr 12, 1:02 PM CDTMesoscale DiscussionSPC118 min
Apr 12, 1:24 PM CDTTornado WatchSPC9 hr
Apr 12, 8:56 PM CDTSpecial Weather StatementLIX64 min
Apr 12, 9:08 PM CDTSevere Thunderstorm WarningLIX31 min
Apr 14, 10:17 AM CDTRiver Flood WarningLIX23 days
Apr 18, 11:26 AM CDTRiver Flood WarningLIX21 days
Apr 18, 8:56 PM CDTMesoscale DiscussionSPC2 hr
Apr 19, 2:39 PM CDTTornado WatchSPC9 hr
Apr 19, 9:07 PM CDTMesoscale DiscussionSPC83 min
Apr 19, 9:39 PM CDTTornado WatchSPC5 hr
Apr 19, 9:50 PM CDTTornado WarningLIX25 min
Apr 19, 10:12 PM CDTSevere Thunderstorm WarningLIX33 min
Apr 19, 10:41 PM CDTSevere Thunderstorm WarningLIX34 min
Apr 19, 10:56 PM CDTSevere Thunderstorm WarningLIX34 min
Apr 22, 9:47 PM CDTTornado WatchSPC9 hr
Apr 23, 2:28 AM CDTMesoscale DiscussionSPC92 min
Apr 23, 4:05 AM CDTTornado WatchSPC11 hr
Apr 23, 5:10 AM CDTSevere Thunderstorm WarningLIX35 min
Apr 28, 5:38 PM CDTMesoscale DiscussionSPC2 hr
Apr 28, 9:35 PM CDTSevere Thunderstorm WarningLIX55 min
Apr 29, 6:28 AM CDTSpecial Weather StatementLIX47 min
Apr 29, 7:26 AM CDTSpecial Weather StatementLIX49 min
May 6, 10:26 AM CDTRed Flag WarningLIX9 hr
May 8, 9:30 AM CDTMesoscale DiscussionSPC2 hr
May 20, 2:39 PM CDTSpecial Weather StatementLIX51 min
May 22, 1:56 PM CDTSpecial Weather StatementLIX34 min
May 22, 2:29 PM CDTSpecial Weather StatementLIX31 min
May 26, 1:24 PM CDTSpecial Weather StatementLIX51 min
May 27, 12:16 PM CDTMesoscale DiscussionSPC89 min
May 27, 2:36 PM CDTMesoscale DiscussionSPC84 min
Jun 6, 11:06 AM CDTRiver Flood WarningLIX6 days
Jun 6, 11:06 AM CDTRiver Flood WarningLIX21 days
Jun 7, 8:58 AM CDTMesoscale DiscussionSPC62 min
Jun 7, 9:03 AM CDTTornado WatchSPC8 hr
Jun 7, 4:27 PM CDTFlash Flood WarningLIX3 hr
Jun 7, 7:24 PM CDTFlash Flood WarningLIX3 hr
Jun 7, 7:52 PM CDTMesoscale DiscussionSPC113 min
Jun 7, 9:40 PM CDTRiver Flood WarningLIX9 hr
Jun 8, 9:10 AM CDTAreal Flood AdvisoryLIX3 hr
Jun 9, 12:49 PM CDTSpecial Weather StatementLIX26 min
Jun 10, 8:05 AM CDTSpecial Weather StatementLIX55 min
Jun 22, 4:04 AM CDTSpecial Weather StatementLIX26 min
Jun 23, 11:08 AM CDTSpecial Weather StatementLIX37 min
Jun 23, 11:33 AM CDTAreal Flood AdvisoryLIX3 hr
Jun 23, 6:19 PM CDTSpecial Weather StatementLIX56 min
Jun 24, 6:08 AM CDTMesoscale DiscussionSPC2 hr
Jun 24, 8:58 AM CDTSevere Thunderstorm WarningLIX32 min
Jun 25, 3:43 PM CDTMesoscale DiscussionSPC62 min
Jul 1, 4:26 PM CDTSpecial Weather StatementLIX34 min
Jul 1, 5:44 PM CDTSpecial Weather StatementLIX46 min
Jul 1, 6:10 PM CDTSpecial Weather StatementLIX50 min
Jul 2, 2:14 PM CDTSpecial Weather StatementLIX31 min
Jul 2, 2:58 PM CDTSpecial Weather StatementLIX47 min
Jul 2, 3:52 PM CDTAreal Flood AdvisoryLIX2 hr
Jul 4, 12:22 PM CDTSpecial Weather StatementLIX23 min
Jul 4, 1:50 PM CDTAreal Flood AdvisoryLIX115 min
Jul 4, 3:13 PM CDTSpecial Weather StatementLIX32 min
Jul 4, 3:42 PM CDTAreal Flood AdvisoryLIX62 min
Jul 7, 9:48 AM CDTSpecial Weather StatementLIX27 min
Jul 7, 1:44 PM CDTSpecial Weather StatementLIX46 min
Jul 8, 4:17 PM CDTSpecial Weather StatementLIX88 min
Jul 13, 6:25 AM CDTSpecial Weather StatementLIX35 min
Jul 13, 6:56 AM CDTFlash Flood WarningLIX2 hr
Jul 15, 12:24 PM CDTMesoscale DiscussionSPC96 min
Jul 15, 6:26 PM CDTSpecial Weather StatementLIX64 min
Jul 24, 10:33 AM CDTSpecial Weather StatementLIX57 min
Jul 24, 11:40 AM CDTSpecial Weather StatementLIX50 min
Jul 26, 10:33 AM CDTAreal Flood AdvisoryLIX3 hr
Jul 26, 11:43 AM CDTSpecial Weather StatementLIX32 min
Jul 26, 12:41 PM CDTSpecial Weather StatementLIX34 min
Jul 26, 1:09 PM CDTSpecial Weather StatementLIX66 min
Jul 26, 2:32 PM CDTSpecial Weather StatementLIX28 min
Jul 27, 8:38 AM CDTSpecial Weather StatementLIX37 min
Jul 27, 9:14 AM CDTAreal Flood AdvisoryLIX3 hr
Jul 27, 9:56 AM CDTAreal Flood AdvisoryLIX57 min
Jul 28, 12:13 PM CDTSpecial Weather StatementLIX17 min
Aug 13, 2:41 PM CDTAreal Flood AdvisoryLIX64 min
Aug 14, 3:19 PM CDTSpecial Weather StatementLIX41 min
Aug 14, 3:52 PM CDTSpecial Weather StatementLIX38 min
Aug 15, 12:50 PM CDTSevere Thunderstorm WarningLIX25 min
Aug 15, 12:57 PM CDTSevere Thunderstorm WarningLIX33 min
Aug 15, 1:14 PM CDTSpecial Weather StatementLIX31 min
Aug 15, 1:25 PM CDTSpecial Weather StatementLIX20 min
Aug 15, 2:23 PM CDTSevere Thunderstorm WarningLIX37 min
Aug 16, 8:45 PM CDTSevere Thunderstorm WarningLIX45 min
Aug 16, 8:59 PM CDTSpecial Weather StatementLIX31 min
Aug 16, 9:11 PM CDTSevere Thunderstorm WarningLIX34 min
Aug 17, 4:59 AM CDTSpecial Weather StatementLIX31 min
Aug 18, 5:42 PM CDTSpecial Weather StatementLIX33 min
Aug 20, 2:30 PM CDTSpecial Weather StatementLIX45 min
Aug 25, 2:01 AM CDTSpecial Weather StatementLIX59 min
Aug 25, 2:44 AM CDTTornado WarningLIX12 min
Aug 25, 3:12 AM CDTMesoscale DiscussionSPC2 hr
Aug 27, 2:41 PM CDTMesoscale DiscussionSPC94 min
Aug 29, 1:51 PM CDTSpecial Weather StatementLIX24 min
Sep 5, 6:09 PM CDTSpecial Weather StatementLIX2 hr
Sep 13, 8:21 PM CDTSpecial Weather StatementLIX54 min
Sep 13, 9:18 PM CDTSpecial Weather StatementLIX27 min
Sep 13, 9:38 PM CDTRiver Flood WarningLIX53 hr
Sep 28, 2:59 PM CDTSpecial Weather StatementLIX61 min
Oct 27, 9:50 AM CDTRiver Flood WarningLIX45 hr
Oct 27, 4:48 PM CDTAreal Flood AdvisoryLIX3 hr
Oct 28, 11:26 AM CDTMesoscale DiscussionSPC3 hr
Oct 28, 1:03 PM CDTTornado WatchSPC11 hr
Nov 25, 12:44 PM CSTMesoscale DiscussionSPC2 hr
Nov 26, 6:54 PM CSTSpecial Weather StatementLIX36 min
Nov 27, 1:00 PM CSTMesoscale DiscussionSPC3 hr
Nov 27, 4:37 PM CSTMesoscale DiscussionSPC113 min
Nov 27, 4:50 PM CSTTornado WarningLIX25 min
Dec 3, 11:41 PM CSTMesoscale DiscussionSPC94 min
Dec 13, 6:26 PM CSTMesoscale DiscussionSPC94 min
Dec 13, 10:42 PM CSTSpecial Weather StatementLIX63 min
Dec 24, 1:02 AM CSTMesoscale DiscussionSPC58 min
Dec 24, 1:42 AM CSTTornado WatchSPC7 hr
Dec 31, 3:30 PM CSTMesoscale DiscussionSPC2 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.