Alert archive / Mississippi / Walthall County

Weather alerts in Walthall County, Mississippi, 2023

242 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Walthall County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
242
Warnings
63
Watches
48
Advisories
51
Busiest month
June59 alerts
Busiest day
February 9, 20239 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 1 tornado warnings covering Walthall County in 2023 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 31 minutes after it went out.

Walthall County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings110%1100%31 min
Severe thunderstorm warnings15473%475%24 min
Flash flood warnings40100%0

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS New Orleans, LA: tornado warnings20480%967%10 min
NWS New Orleans, LA: severe thunderstorm warnings2677273%22877%20 min
NWS New Orleans, LA: flash flood warnings531670%4596%90 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, 1:48 PM CSTDense Fog AdvisoryLIX22 hr
Jan 3, 1:41 AM CSTFlood WatchLIX27 hr
Jan 3, 9:14 AM CSTTornado WatchSPC8 hr
Jan 3, 9:42 AM CSTSpecial Weather StatementLIX33 min
Jan 3, 9:56 AM CSTSpecial Weather StatementLIX34 min
Jan 3, 3:41 PM CSTSpecial Weather StatementLIX19 min
Jan 3, 5:01 PM CSTSevere Thunderstorm WatchSPC9 hr
Jan 3, 9:19 PM CSTMesoscale DiscussionSPC86 min
Jan 9, 4:15 AM CSTDense Fog AdvisoryLIX2 hr
Jan 18, 3:41 AM CSTWind AdvisoryLIX24 hr
Jan 23, 11:39 AM CSTHigh Wind WatchLIX7 hr
Jan 23, 6:47 PM CSTHigh Wind WarningLIX31 hr
Jan 24, 9:03 PM CSTSpecial Weather StatementLIX42 min
Jan 24, 9:13 PM CSTSevere Thunderstorm WarningLIX31 min
Jan 24, 9:46 PM CSTSpecial Weather StatementLIX44 min
Jan 28, 9:54 AM CSTRiver Flood WarningLIX68 hr
Jan 29, 2:30 AM CSTFlood WatchLIX22 hr
Jan 30, 2:49 PM CSTDense Fog AdvisoryLIX19 hr
Feb 7, 7:39 PM CSTDense Fog AdvisoryLIX12 hr
Feb 8, 2:22 PM CSTMesoscale DiscussionSPC83 min
Feb 8, 4:52 PM CSTTornado WatchSPC6 hr
Feb 8, 6:06 PM CSTMesoscale DiscussionSPC84 min
Feb 8, 6:14 PM CSTSpecial Weather StatementLIX46 min
Feb 8, 6:40 PM CSTTornado WarningLIX50 min
Feb 8, 8:08 PM CSTMesoscale DiscussionSPC97 min
Feb 8, 8:39 PM CSTFlash Flood WarningLIX3 hr
Feb 8, 9:29 PM CSTFlash Flood WarningLIX5 hr
Feb 8, 9:47 PM CSTFlood WatchLIX5 hr
Feb 8, 11:43 PM CSTFlash Flood WarningLIX3 hr
Feb 9, 1:47 AM CSTRiver Flood WarningLIX41 hr
Feb 10, 8:04 PM CSTRiver Flood WarningLIX11 hr
Feb 14, 5:10 AM CSTDense Fog AdvisoryLIX4 hr
Feb 16, 9:59 AM CSTTornado WatchSPC9 hr
Feb 16, 11:37 AM CSTMesoscale DiscussionSPC83 min
Feb 16, 1:23 PM CSTAreal Flood AdvisoryLIX112 min
Feb 16, 2:20 PM CSTMesoscale DiscussionSPC55 min
Feb 16, 6:14 PM CSTAreal Flood AdvisoryLIX102 min
Feb 17, 4:28 AM CSTRiver Flood WarningLIX55 hr
Feb 21, 2:24 PM CSTWind AdvisoryLIX28 hr
Mar 2, 4:15 AM CSTWind AdvisoryLIX32 hr
Mar 6, 4:21 AM CSTDense Fog AdvisoryLIX5 hr
Mar 6, 9:12 AM CSTDense Fog AdvisoryLIX108 min
Mar 8, 3:57 AM CSTDense Fog AdvisoryLIX5 hr
Mar 12, 7:13 AM CDTMesoscale DiscussionSPC2 hr
Mar 18, 3:10 AM CDTFreeze WatchLIX10 hr
Mar 18, 3:10 AM CDTFreeze WatchLIX12 hr
Mar 18, 12:40 PM CDTFreeze WarningLIX20 hr
Mar 18, 2:41 PM CDTFreeze WarningLIX43 hr
Mar 26, 1:55 AM CDTMesoscale DiscussionSPC2 hr
Mar 26, 3:06 PM CDTMesoscale DiscussionSPC114 min
Mar 26, 3:57 PM CDTTornado WatchSPC7 hr
Mar 28, 1:10 AM CDTSevere Thunderstorm WarningLIX29 min
Mar 28, 6:02 AM CDTSpecial Weather StatementLIX28 min
Mar 28, 6:08 AM CDTSevere Thunderstorm WarningLIX37 min
Mar 28, 6:33 AM CDTSevere Thunderstorm WarningLIX42 min
Mar 28, 7:08 AM CDTSevere Thunderstorm Warning Considerable damage threatLIX37 min
Mar 28, 7:41 AM CDTMesoscale DiscussionSPC64 min
Apr 2, 10:19 PM CDTMesoscale DiscussionSPC5 hr
Apr 3, 1:03 AM CDTMesoscale DiscussionSPC117 min
Apr 6, 12:35 PM CDTMesoscale DiscussionSPC2 hr
Apr 7, 2:58 AM CDTFlood WatchLIX28 hr
Apr 7, 11:44 AM CDTAreal Flood AdvisoryLIX3 hr
Apr 15, 11:12 AM CDTMesoscale DiscussionSPC63 min
Apr 15, 11:20 AM CDTSevere Thunderstorm WatchSPC5 hr
Apr 15, 11:36 AM CDTSevere Thunderstorm WarningLIX39 min
Apr 15, 12:13 PM CDTSpecial Weather StatementLIX32 min
Apr 20, 5:03 AM CDTDense Fog AdvisoryLIX4 hr
Apr 21, 8:49 PM CDTSpecial Weather StatementLIX26 min
May 7, 5:08 PM CDTMesoscale DiscussionSPC97 min
May 9, 1:58 PM CDTMesoscale DiscussionSPC92 min
May 9, 4:00 PM CDTSpecial Weather StatementLIX30 min
May 11, 12:22 PM CDTMesoscale DiscussionSPC53 min
May 11, 12:45 PM CDTTornado WatchSPC7 hr
May 11, 3:02 PM CDTMesoscale DiscussionSPC88 min
May 11, 5:08 PM CDTSpecial Weather StatementLIX37 min
May 11, 5:58 PM CDTSpecial Weather StatementLIX32 min
May 11, 6:03 PM CDTAreal Flood AdvisoryLIX13 min
May 11, 6:16 PM CDTFlash Flood WarningLIX2 hr
May 16, 4:36 PM CDTSpecial Weather StatementLIX24 min
Jun 7, 8:41 PM CDTSpecial Weather StatementLIX34 min
Jun 10, 6:19 PM CDTMesoscale DiscussionSPC86 min
Jun 10, 6:54 PM CDTSpecial Weather StatementLIX36 min
Jun 10, 7:09 PM CDTSevere Thunderstorm WarningLIX36 min
Jun 12, 1:33 PM CDTMesoscale DiscussionSPC57 min
Jun 12, 2:00 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 3:43 PM CDTMesoscale DiscussionSPC62 min
Jun 12, 3:46 PM CDTSpecial Weather StatementLIX59 min
Jun 12, 3:56 PM CDTSevere Thunderstorm WarningLIX25 min
Jun 12, 4:47 PM CDTSpecial Weather StatementLIX43 min
Jun 12, 5:07 PM CDTSevere Thunderstorm Warning Considerable damage threatLIX38 min
Jun 12, 5:42 PM CDTSevere Thunderstorm Warning Destructive damage threatLIX48 min
Jun 12, 6:10 PM CDTMesoscale DiscussionSPC95 min
Jun 14, 5:20 AM CDTMesoscale DiscussionSPC85 min
Jun 14, 6:10 PM CDTSevere Thunderstorm WarningLIX30 min
Jun 15, 9:26 AM CDTMesoscale DiscussionSPC94 min
Jun 15, 9:41 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 15, 12:25 PM CDTSevere Thunderstorm WarningLIX50 min
Jun 15, 12:52 PM CDTMesoscale DiscussionSPC83 min
Jun 15, 1:10 PM CDTSevere Thunderstorm WarningLIX50 min
Jun 15, 1:32 PM CDTHeat AdvisoryLIX29 hr
Jun 15, 1:56 PM CDTSevere Thunderstorm WarningLIX33 min
Jun 16, 1:02 AM CDTMesoscale DiscussionSPC3 hr
Jun 16, 1:52 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 16, 2:59 PM CDTHeat AdvisoryLIX28 hr
Jun 16, 4:35 PM CDTMesoscale DiscussionSPC85 min
Jun 17, 2:59 AM CDTHeat AdvisoryLIX40 hr
Jun 17, 10:03 AM CDTMesoscale DiscussionSPC117 min
Jun 17, 12:55 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 17, 3:44 PM CDTMesoscale DiscussionSPC91 min
Jun 17, 6:18 PM CDTMesoscale DiscussionSPC117 min
Jun 18, 2:31 AM CDTHeat AdvisoryLIX40 hr
Jun 18, 5:21 AM CDTMesoscale DiscussionSPC114 min
Jun 18, 3:45 PM CDTMesoscale DiscussionSPC90 min
Jun 19, 6:06 PM CDTFlood WatchLIX31 hr
Jun 19, 7:19 PM CDTSpecial Weather StatementLIX26 min
Jun 19, 7:36 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 19, 7:58 PM CDTSpecial Weather StatementLIX32 min
Jun 20, 12:14 PM CDTSpecial Weather StatementLIX46 min
Jun 24, 2:09 PM CDTHeat AdvisoryLIX29 hr
Jun 24, 2:40 PM CDTMesoscale DiscussionSPC3 hr
Jun 25, 3:51 PM CDTHeat AdvisoryLIX27 hr
Jun 25, 10:07 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 26, 12:24 AM CDTSpecial Weather StatementLIX36 min
Jun 26, 1:01 AM CDTSpecial Weather StatementLIX44 min
Jun 26, 3:04 AM CDTExcessive Heat WatchLIX10 hr
Jun 26, 1:16 PM CDTExcessive Heat WarningLIX31 hr
Jun 27, 4:07 AM CDTExcessive Heat WatchLIX11 hr
Jun 27, 3:05 PM CDTExcessive Heat WatchLIX24 hr
Jun 27, 3:05 PM CDTExcessive Heat WarningLIX29 hr
Jun 27, 4:27 PM CDTMesoscale DiscussionSPC93 min
Jun 27, 4:39 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 27, 7:10 PM CDTSpecial Weather StatementLIX65 min
Jun 27, 7:20 PM CDTMesoscale DiscussionSPC115 min
Jun 27, 8:16 PM CDTSpecial Weather StatementLIX29 min
Jun 28, 3:12 PM CDTExcessive Heat WarningLIX29 hr
Jun 28, 3:12 PM CDTExcessive Heat WarningLIX53 hr
Jun 30, 4:26 AM CDTHeat AdvisoryLIX9 hr
Jun 30, 1:30 PM CDTExcessive Heat WarningLIX31 hr
Jul 1, 3:04 PM CDTHeat AdvisoryLIX29 hr
Jul 6, 8:43 PM CDTSpecial Weather StatementLIX47 min
Jul 10, 1:01 AM CDTSpecial Weather StatementLIX59 min
Jul 11, 4:27 PM CDTSpecial Weather StatementLIX33 min
Jul 12, 4:53 PM CDTSpecial Weather StatementLIX37 min
Jul 12, 7:30 PM CDTSpecial Weather StatementLIX30 min
Jul 13, 3:35 PM CDTHeat AdvisoryLIX28 hr
Jul 14, 3:01 PM CDTHeat AdvisoryLIX29 hr
Jul 15, 1:52 PM CDTHeat AdvisoryLIX30 hr
Jul 15, 10:37 PM CDTSpecial Weather StatementLIX53 min
Jul 15, 11:39 PM CDTSpecial Weather StatementLIX51 min
Jul 16, 8:56 AM CDTSpecial Weather StatementLIX34 min
Jul 16, 1:47 PM CDTSpecial Weather StatementLIX28 min
Jul 16, 7:48 PM CDTSpecial Weather StatementLIX27 min
Jul 17, 1:45 PM CDTHeat AdvisoryLIX29 hr
Jul 18, 2:43 PM CDTHeat AdvisoryLIX28 hr
Jul 19, 2:03 PM CDTHeat AdvisoryLIX29 hr
Jul 20, 2:32 PM CDTHeat AdvisoryLIX28 hr
Jul 21, 1:53 PM CDTHeat AdvisoryLIX29 hr
Jul 22, 1:06 PM CDTMesoscale DiscussionSPC84 min
Jul 22, 1:59 PM CDTSpecial Weather StatementLIX31 min
Jul 22, 2:17 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 22, 3:42 PM CDTSevere Thunderstorm WarningLIX33 min
Jul 22, 4:56 PM CDTMesoscale DiscussionSPC94 min
Jul 28, 1:56 PM CDTHeat AdvisoryLIX29 hr
Jul 29, 1:22 PM CDTHeat AdvisoryLIX30 hr
Jul 30, 10:18 AM CDTExcessive Heat WatchLIX28 hr
Jul 30, 10:18 AM CDTExcessive Heat WarningLIX33 hr
Jul 31, 2:24 PM CDTExcessive Heat WatchLIX13 hr
Jul 31, 2:24 PM CDTExcessive Heat WarningLIX29 hr
Aug 1, 3:23 AM CDTExcessive Heat WarningLIX40 hr
Aug 2, 2:21 AM CDTHeat AdvisoryLIX41 hr
Aug 3, 2:40 AM CDTExcessive Heat WatchLIX12 hr
Aug 3, 2:25 PM CDTExcessive Heat WarningLIX29 hr
Aug 4, 3:39 AM CDTExcessive Heat WatchLIX12 hr
Aug 4, 3:37 PM CDTExcessive Heat WarningLIX27 hr
Aug 5, 3:22 AM CDTExcessive Heat WatchLIX11 hr
Aug 5, 2:10 PM CDTExcessive Heat WatchLIX23 hr
Aug 5, 2:10 PM CDTExcessive Heat WarningLIX29 hr
Aug 6, 1:03 PM CDTExcessive Heat WatchLIX26 hr
Aug 6, 1:03 PM CDTExcessive Heat WarningLIX30 hr
Aug 7, 2:33 PM CDTExcessive Heat WarningLIX28 hr
Aug 8, 3:48 AM CDTExcessive Heat WatchLIX11 hr
Aug 8, 2:52 PM CDTExcessive Heat WatchLIX23 hr
Aug 8, 2:52 PM CDTExcessive Heat WarningLIX28 hr
Aug 9, 2:10 PM CDTExcessive Heat WatchLIX24 hr
Aug 9, 2:10 PM CDTExcessive Heat WarningLIX29 hr
Aug 10, 2:38 PM CDTExcessive Heat WatchLIX25 hr
Aug 10, 2:38 PM CDTExcessive Heat WarningLIX28 hr
Aug 11, 4:03 PM CDTExcessive Heat WatchLIX23 hr
Aug 11, 4:03 PM CDTExcessive Heat WarningLIX27 hr
Aug 12, 2:56 PM CDTExcessive Heat WarningLIX28 hr
Aug 12, 3:03 PM CDTExcessive Heat WatchLIX23 hr
Aug 13, 1:46 PM CDTExcessive Heat WarningLIX29 hr
Aug 14, 1:12 PM CDTHeat AdvisoryLIX30 hr
Aug 17, 3:06 AM CDTHeat AdvisoryLIX41 hr
Aug 18, 2:23 PM CDTHeat AdvisoryLIX29 hr
Aug 19, 4:01 AM CDTHeat AdvisoryLIX40 hr
Aug 20, 11:58 AM CDTRed Flag WarningLIX3 days
Aug 20, 2:33 PM CDTHeat AdvisoryLIX29 hr
Aug 21, 2:31 PM CDTExcessive Heat WatchLIX25 hr
Aug 21, 2:31 PM CDTHeat AdvisoryLIX29 hr
Aug 22, 3:16 PM CDTExcessive Heat WarningLIX30 hr
Aug 23, 3:47 AM CDTExcessive Heat WatchLIX12 hr
Aug 23, 3:29 PM CDTRed Flag WarningLIX29 hr
Aug 23, 3:31 PM CDTExcessive Heat WarningLIX28 hr
Aug 24, 2:38 AM CDTHeat AdvisoryLIX41 hr
Aug 24, 3:43 PM CDTRed Flag WarningLIX28 hr
Aug 25, 2:49 AM CDTExcessive Heat WatchLIX12 hr
Aug 25, 3:10 PM CDTRed Flag WarningLIX29 hr
Aug 25, 3:13 PM CDTExcessive Heat WarningLIX29 hr
Aug 25, 8:40 PM CDTSpecial Weather StatementJAN20 min
Aug 26, 3:50 AM CDTExcessive Heat WatchLIX10 hr
Aug 26, 2:19 PM CDTExcessive Heat WarningLIX30 hr
Aug 26, 3:17 PM CDTRed Flag WarningLIX29 hr
Aug 27, 3:45 AM CDTExcessive Heat WatchLIX11 hr
Aug 27, 2:39 PM CDTHeat AdvisoryLIX28 hr
Aug 27, 3:45 PM CDTMesoscale DiscussionSPC2 hr
Aug 29, 2:00 PM CDTFire Weather WatchLIX24 hr
Aug 29, 2:00 PM CDTRed Flag WarningLIX30 hr
Sep 6, 2:13 PM CDTHeat AdvisoryLIX29 hr
Sep 7, 3:31 PM CDTMesoscale DiscussionSPC119 min
Oct 5, 1:50 PM CDTRed Flag WarningLIX53 hr
Oct 26, 9:42 PM CDTDense Fog AdvisoryLIX11 hr
Oct 27, 11:38 AM CDTDense Fog AdvisoryLIX21 hr
Oct 28, 2:16 PM CDTDense Fog AdvisoryLIX19 hr
Oct 29, 2:48 PM CDTDense Fog AdvisoryLIX18 hr
Oct 30, 3:07 PM CDTFire Weather WatchLIX24 hr
Oct 30, 3:07 PM CDTRed Flag WarningLIX28 hr
Oct 31, 4:00 AM CDTFreeze WarningLIX28 hr
Oct 31, 1:48 PM CDTFreeze WatchLIX14 hr
Oct 31, 3:00 PM CDTRed Flag WarningLIX28 hr
Nov 1, 4:17 AM CDTFreeze WarningLIX28 hr
Nov 7, 1:58 PM CSTDense Fog AdvisoryLIX19 hr
Nov 8, 2:11 PM CSTDense Fog AdvisoryLIX18 hr
Nov 20, 3:14 PM CSTMesoscale DiscussionSPC2 hr
Nov 20, 3:52 PM CSTTornado WatchSPC9 hr
Nov 20, 8:47 PM CSTMesoscale DiscussionSPC118 min
Nov 20, 10:37 PM CSTSpecial Weather StatementLIX38 min
Nov 20, 11:16 PM CSTSpecial Weather StatementLIX44 min
Nov 28, 2:04 AM CSTFreeze WarningLIX30 hr
Dec 9, 11:12 PM CSTSpecial Weather StatementLIX48 min
Dec 24, 4:13 AM CSTWind AdvisoryLIX20 hr
Dec 28, 3:03 PM CSTFreeze WarningLIX19 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 archive20222024

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.