Alert archive / Mississippi / Grenada County

Weather alerts in Grenada County, Mississippi, 2023

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

Grenada County and its neighbors

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

Alerts
156
Warnings
26
Watches
32
Advisories
32
Busiest month
June35 alerts
Busiest day
June 14, 20236 alerts

Over time

By month

Warning verification

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

Grenada County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings12925%1090%29 min
Flash flood warnings00

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings673154%8880%19 min
NWS Jackson, MS: severe thunderstorm warnings59528852%92676%26 min
NWS Jackson, MS: flash flood warnings552751%8683%85 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 3, 1:36 AM CSTMesoscale DiscussionSPC114 min
Jan 3, 2:56 AM CSTTornado WatchSPC8 hr
Jan 3, 7:56 AM CSTMesoscale DiscussionSPC2 hr
Jan 3, 9:42 AM CSTSevere Thunderstorm WarningJAN63 min
Jan 18, 12:30 PM CSTMesoscale DiscussionSPC90 min
Jan 18, 2:34 PM CSTTornado WatchSPC7 hr
Jan 18, 5:47 PM CSTMesoscale DiscussionSPC118 min
Jan 18, 7:11 PM CSTSevere Thunderstorm WarningJAN64 min
Jan 23, 2:39 PM CSTWind AdvisoryJAN36 hr
Jan 31, 3:50 AM CSTWinter Weather AdvisoryJAN32 hr
Feb 8, 3:40 AM CSTWind AdvisoryJAN25 hr
Feb 8, 4:52 PM CSTTornado WatchSPC6 hr
Feb 8, 6:09 PM CSTSpecial Weather StatementJAN36 min
Feb 8, 6:56 PM CSTMesoscale DiscussionSPC64 min
Feb 13, 2:07 PM CSTWind AdvisoryJAN29 hr
Feb 15, 5:41 PM CSTMesoscale DiscussionSPC3 hr
Feb 15, 9:22 PM CSTTornado WatchSPC8 hr
Feb 16, 9:59 AM CSTTornado WatchSPC9 hr
Feb 21, 1:21 PM CSTWind AdvisoryJAN29 hr
Feb 26, 4:46 AM CSTWind AdvisoryJAN37 hr
Feb 26, 6:02 AM CSTDense Fog AdvisoryJAN3 hr
Mar 1, 2:22 PM CSTMesoscale DiscussionSPC113 min
Mar 1, 3:31 PM CSTTornado WatchSPC8 hr
Mar 1, 6:21 PM CSTMesoscale DiscussionSPC114 min
Mar 1, 8:44 PM CSTMesoscale DiscussionSPC61 min
Mar 1, 10:46 PM CSTSpecial Weather StatementJAN29 min
Mar 2, 4:03 AM CSTWind AdvisoryJAN38 hr
Mar 2, 11:51 PM CSTTornado WatchSPC8 hr
Mar 3, 3:23 AM CSTHigh Wind WarningJAN9 hr
Mar 3, 3:23 AM CSTWind AdvisoryJAN15 hr
Mar 11, 8:40 PM CSTMesoscale DiscussionSPC2 hr
Mar 11, 11:51 PM CSTMesoscale DiscussionSPC84 min
Mar 12, 12:04 AM CSTSevere Thunderstorm WatchSPC4 hr
Mar 12, 2:28 PM CDTFreeze WatchJAN37 hr
Mar 13, 3:30 AM CDTFreeze WarningJAN30 hr
Mar 14, 3:25 AM CDTFreeze WarningJAN30 hr
Mar 17, 3:31 AM CDTFreeze WatchJAN24 hr
Mar 18, 3:14 AM CDTFreeze WatchJAN11 hr
Mar 18, 3:14 AM CDTFreeze WarningJAN31 hr
Mar 18, 2:09 PM CDTFreeze WarningJAN44 hr
Mar 19, 1:39 PM CDTFreeze WatchJAN25 hr
Mar 24, 1:46 PM CDTWind AdvisoryJAN10 hr
Mar 24, 5:20 PM CDTTornado WatchSPC8 hr
Mar 30, 4:11 AM CDTWind AdvisoryJAN42 hr
Mar 31, 5:28 PM CDTMesoscale DiscussionSPC92 min
Mar 31, 7:42 PM CDTMesoscale DiscussionSPC2 hr
Mar 31, 8:24 PM CDTTornado WatchSPC8 hr
Mar 31, 10:23 PM CDTMesoscale DiscussionSPC2 hr
Apr 1, 12:35 AM CDTSpecial Weather StatementJAN25 min
Apr 1, 2:03 AM CDTMesoscale DiscussionSPC87 min
Apr 5, 2:17 PM CDTMesoscale DiscussionSPC88 min
Apr 5, 2:39 PM CDTSevere Thunderstorm WatchSPC4 hr
Apr 5, 3:35 PM CDTSevere Thunderstorm WarningJAN40 min
Apr 15, 6:28 PM CDTMesoscale DiscussionSPC92 min
Apr 15, 6:48 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 15, 9:31 PM CDTMesoscale DiscussionSPC59 min
Apr 15, 11:52 PM CDTMesoscale DiscussionSPC83 min
Apr 21, 1:35 PM CDTMesoscale DiscussionSPC115 min
Apr 21, 3:20 PM CDTSpecial Weather StatementJAN55 min
Apr 27, 3:50 PM CDTMesoscale DiscussionSPC115 min
Apr 27, 5:12 PM CDTSevere Thunderstorm WatchSPC6 hr
Apr 27, 6:57 PM CDTMesoscale DiscussionSPC2 hr
Apr 27, 9:08 PM CDTMesoscale DiscussionSPC2 hr
Apr 27, 10:26 PM CDTSpecial Weather StatementJAN64 min
May 7, 5:01 PM CDTSpecial Weather StatementJAN59 min
May 7, 5:08 PM CDTMesoscale DiscussionSPC97 min
May 7, 6:18 PM CDTSpecial Weather StatementJAN57 min
May 11, 3:22 PM CDTSevere Thunderstorm WarningJAN68 min
May 14, 3:38 PM CDTSpecial Weather StatementJAN52 min
May 18, 1:00 PM CDTMesoscale DiscussionSPC2 hr
Jun 10, 3:09 PM CDTMesoscale DiscussionSPC2 hr
Jun 10, 4:16 PM CDTSpecial Weather StatementJAN44 min
Jun 10, 4:17 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 10, 4:57 PM CDTSpecial Weather StatementJAN48 min
Jun 10, 6:19 PM CDTMesoscale DiscussionSPC86 min
Jun 11, 5:17 PM CDTMesoscale DiscussionSPC58 min
Jun 11, 5:57 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 11, 7:42 PM CDTMesoscale DiscussionSPC93 min
Jun 14, 7:22 AM CDTMesoscale DiscussionSPC83 min
Jun 14, 8:10 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 14, 10:16 AM CDTSevere Thunderstorm WarningJAN59 min
Jun 14, 11:13 AM CDTSevere Thunderstorm WarningJAN62 min
Jun 14, 1:46 PM CDTSevere Thunderstorm Watch PDSSPC6 hr
Jun 14, 3:25 PM CDTMesoscale DiscussionSPC95 min
Jun 14, 7:10 PM CDTMesoscale DiscussionSPC65 min
Jun 14, 7:33 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 15, 2:17 AM CDTSpecial Weather StatementJAN43 min
Jun 15, 2:31 AM CDTSevere Thunderstorm WarningJAN44 min
Jun 16, 4:52 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 18, 2:27 AM CDTSevere Thunderstorm WatchSPC10 hr
Jun 18, 1:45 PM CDTFlood WatchJAN17 hr
Jun 18, 5:31 PM CDTMesoscale DiscussionSPC119 min
Jun 18, 6:52 PM CDTTornado WatchSPC6 hr
Jun 18, 8:05 PM CDTSevere Thunderstorm WarningJAN70 min
Jun 24, 3:34 AM CDTHeat AdvisoryJAN40 hr
Jun 25, 2:20 PM CDTHeat AdvisoryJAN30 hr
Jun 25, 6:15 PM CDTMesoscale DiscussionSPC90 min
Jun 25, 6:51 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 8:15 PM CDTSevere Thunderstorm WarningJAN79 min
Jun 25, 8:49 PM CDTMesoscale DiscussionSPC86 min
Jun 27, 4:28 AM CDTExcessive Heat WatchJAN24 hr
Jun 28, 4:23 AM CDTExcessive Heat WarningJAN41 hr
Jun 28, 4:23 AM CDTHeat AdvisoryJAN17 hr
Jun 29, 3:51 AM CDTExcessive Heat WarningJAN41 hr
Jun 29, 3:05 PM CDTExcessive Heat WarningJAN54 hr
Jul 1, 3:09 AM CDTHeat AdvisoryJAN42 hr
Jul 2, 10:16 AM CDTMesoscale DiscussionSPC89 min
Jul 2, 12:14 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 2, 1:36 PM CDTSevere Thunderstorm WarningJAN54 min
Jul 2, 2:20 PM CDTSpecial Weather StatementJAN40 min
Jul 3, 12:48 PM CDTMesoscale DiscussionSPC117 min
Jul 4, 1:22 PM CDTMesoscale DiscussionSPC113 min
Jul 4, 2:15 PM CDTSpecial Weather StatementJAN45 min
Jul 5, 9:46 PM CDTSpecial Weather StatementJAN44 min
Jul 8, 1:38 PM CDTMesoscale DiscussionSPC2 hr
Jul 9, 12:51 PM CDTMesoscale DiscussionSPC84 min
Jul 12, 2:53 PM CDTFlood WatchJAN24 hr
Jul 13, 3:21 PM CDTHeat AdvisoryJAN29 hr
Jul 14, 12:14 PM CDTMesoscale DiscussionSPC3 hr
Jul 14, 2:19 PM CDTHeat AdvisoryJAN30 hr
Jul 15, 2:31 AM CDTSpecial Weather StatementJAN59 min
Jul 15, 3:31 AM CDTSpecial Weather StatementJAN44 min
Jul 17, 1:57 PM CDTHeat AdvisoryJAN30 hr
Jul 18, 2:44 PM CDTExcessive Heat WarningJAN30 hr
Jul 18, 2:44 PM CDTHeat AdvisoryJAN30 hr
Jul 19, 2:28 PM CDTHeat AdvisoryJAN53 hr
Jul 27, 2:30 PM CDTHeat AdvisoryJAN30 hr
Jul 28, 1:33 PM CDTHeat AdvisoryJAN30 hr
Jul 29, 2:56 PM CDTHeat AdvisoryJAN29 hr
Jul 31, 2:30 PM CDTExcessive Heat WarningJAN7 days
Jul 31, 2:30 PM CDTHeat AdvisoryJAN4 days
Aug 4, 2:58 PM CDTHeat AdvisoryJAN24 hr
Aug 7, 1:21 PM CDTHeat AdvisoryJAN8 hr
Aug 8, 2:37 PM CDTHeat AdvisoryJAN45 hr
Aug 9, 3:54 AM CDTExcessive Heat WarningJAN6 days
Aug 10, 2:07 AM CDTSpecial Weather StatementJAN53 min
Aug 10, 3:24 PM CDTHeat AdvisoryJAN29 hr
Aug 10, 3:38 PM CDTMesoscale DiscussionSPC2 hr
Aug 15, 12:55 AM CDTSpecial Weather StatementJAN35 min
Aug 18, 2:56 PM CDTHeat AdvisoryJAN5 days
Aug 22, 3:26 AM CDTExcessive Heat WarningJAN5 days
Aug 26, 2:11 PM CDTHeat AdvisoryJAN31 hr
Sep 6, 8:43 AM CDTSpecial Weather StatementJAN47 min
Sep 6, 2:05 PM CDTMesoscale DiscussionSPC2 hr
Sep 6, 5:25 PM CDTSevere Thunderstorm WatchSPC6 hr
Sep 6, 7:38 PM CDTMesoscale DiscussionSPC97 min
Sep 6, 8:26 PM CDTSevere Thunderstorm WarningJAN49 min
Oct 30, 2:53 PM CDTFreeze WarningJAN42 hr
Nov 1, 3:25 AM CDTFreeze WarningJAN30 hr
Dec 1, 8:43 PM CSTDense Fog AdvisoryJAN8 hr
Dec 3, 1:15 AM CSTDense Fog AdvisoryJAN9 hr
Dec 9, 10:50 AM CSTMesoscale DiscussionSPC115 min
Dec 9, 3:00 PM CSTMesoscale DiscussionSPC2 hr
Dec 9, 3:56 PM CSTTornado WatchSPC8 hr
Dec 9, 5:32 PM CSTSevere Thunderstorm WarningJAN47 min
Dec 9, 5:56 PM CSTMesoscale DiscussionSPC94 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 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.