Alert archive / Mississippi / Grenada County

Weather alerts in Grenada County, Mississippi, 2022

125 weather alerts in 2022, 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 2022. Tap one for its archive.

Alerts
125
Warnings
29
Watches
25
Advisories
34
Busiest month
July27 alerts
Busiest day
October 12, 20226 alerts

Over time

By month

Warning verification

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

0 of 2 tornado warnings covering Grenada County in 2022 had a tornado report inside them.

Grenada County, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%0
Severe thunderstorm warnings14843%683%29 min
Flash flood warnings00

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings1616957%23680%22 min
NWS Jackson, MS: severe thunderstorm warnings41725240%78469%27 min
NWS Jackson, MS: flash flood warnings854448%19588%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 1, 4:17 AM CSTWind AdvisoryJAN14 hr
Jan 1, 11:37 AM CSTMesoscale DiscussionSPC113 min
Jan 1, 1:30 PM CSTTornado WatchSPC9 hr
Jan 1, 1:57 PM CSTMesoscale DiscussionSPC93 min
Jan 1, 9:17 PM CSTSpecial Weather StatementJAN13 min
Jan 2, 10:58 AM CSTWinter Weather AdvisoryJAN13 hr
Jan 15, 4:35 AM CSTWinter Weather AdvisoryJAN31 hr
Jan 19, 2:20 PM CSTSevere Thunderstorm WatchSPC5 hr
Jan 19, 5:18 PM CSTMesoscale DiscussionSPC117 min
Feb 2, 2:27 AM CSTWinter Weather AdvisoryJAN37 hr
Feb 14, 1:41 PM CSTRed Flag WarningJAN28 hr
Feb 16, 3:38 AM CSTWind AdvisoryJAN38 hr
Feb 17, 10:05 AM CSTMesoscale DiscussionSPC2 hr
Feb 17, 10:49 AM CSTTornado WatchSPC7 hr
Feb 22, 3:54 PM CSTMesoscale DiscussionSPC2 hr
Feb 22, 5:16 PM CSTTornado WatchSPC7 hr
Feb 22, 7:55 PM CSTSevere Thunderstorm WarningJAN51 min
Mar 10, 2:55 PM CSTWinter Weather AdvisoryJAN36 hr
Mar 11, 3:31 AM CSTFreeze WarningJAN29 hr
Mar 11, 3:31 AM CSTFreeze WarningJAN52 hr
Mar 11, 3:31 AM CSTWind AdvisoryJAN24 hr
Mar 21, 2:52 AM CDTFlood WatchJAN44 hr
Mar 21, 12:31 PM CDTWind AdvisoryJAN28 hr
Mar 22, 10:40 AM CDTTornado WatchSPC8 hr
Mar 22, 11:51 AM CDTSevere Thunderstorm WarningJAN41 min
Mar 22, 11:57 AM CDTMesoscale DiscussionSPC2 hr
Mar 22, 1:09 PM CDTSevere Thunderstorm WarningJAN66 min
Mar 22, 1:20 PM CDTTornado WarningJAN55 min
Mar 29, 3:44 AM CDTWind AdvisoryJAN24 hr
Mar 30, 3:44 AM CDTHigh Wind WarningJAN15 hr
Mar 30, 12:16 PM CDTTornado WatchSPC9 hr
Mar 30, 2:16 PM CDTMesoscale DiscussionSPC119 min
Mar 30, 3:47 PM CDTSevere Thunderstorm WarningJAN73 min
Mar 30, 4:38 PM CDTSevere Thunderstorm WarningJAN55 min
Apr 5, 3:18 AM CDTTornado WatchSPC8 hr
Apr 11, 4:14 AM CDTSpecial Weather StatementJAN61 min
Apr 13, 2:48 PM CDTTornado WatchSPC8 hr
Apr 13, 5:00 PM CDTMesoscale DiscussionSPC90 min
Apr 13, 6:29 PM CDTMesoscale DiscussionSPC91 min
Apr 13, 6:52 PM CDTSevere Thunderstorm WarningJAN38 min
Apr 13, 7:25 PM CDTSevere Thunderstorm WarningJAN80 min
Apr 15, 4:34 PM CDTMesoscale DiscussionSPC116 min
Apr 16, 5:59 AM CDTMesoscale DiscussionSPC2 hr
Apr 17, 8:32 AM CDTMesoscale DiscussionSPC118 min
Apr 30, 10:42 PM CDTMesoscale DiscussionSPC2 hr
May 2, 2:33 PM CDTMesoscale DiscussionSPC2 hr
May 5, 12:44 PM CDTSevere Thunderstorm WatchSPC8 hr
May 5, 4:56 PM CDTMesoscale DiscussionSPC94 min
May 13, 1:00 PM CDTSpecial Weather StatementJAN60 min
May 15, 5:09 PM CDTMesoscale DiscussionSPC66 min
May 15, 5:22 PM CDTSevere Thunderstorm WatchSPC5 hr
May 15, 7:14 PM CDTSevere Thunderstorm WarningJAN46 min
May 25, 9:37 AM CDTSevere Thunderstorm WatchSPC7 hr
May 25, 6:36 PM CDTMesoscale DiscussionSPC54 min
Jun 8, 3:47 PM CDTMesoscale DiscussionSPC88 min
Jun 8, 5:22 PM CDTSpecial Weather StatementJAN53 min
Jun 11, 2:07 AM CDTDense Fog AdvisoryJAN7 hr
Jun 11, 2:41 PM CDTHeat AdvisoryJAN29 hr
Jun 12, 1:27 PM CDTHeat AdvisoryJAN31 hr
Jun 15, 3:12 PM CDTHeat AdvisoryJAN3 days
Jun 18, 12:33 PM CDTMesoscale DiscussionSPC3 hr
Jun 22, 3:07 AM CDTHeat AdvisoryJAN41 hr
Jun 25, 2:13 PM CDTHeat AdvisoryJAN30 hr
Jul 4, 8:41 AM CDTHeat AdvisoryJAN5 days
Jul 6, 4:11 AM CDTExcessive Heat WarningJAN4 days
Jul 9, 2:48 PM CDTMesoscale DiscussionSPC87 min
Jul 9, 3:29 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 9, 5:35 PM CDTMesoscale DiscussionSPC115 min
Jul 12, 2:34 PM CDTHeat AdvisoryJAN28 hr
Jul 13, 12:22 PM CDTSpecial Weather StatementJAN38 min
Jul 13, 12:45 PM CDTSevere Thunderstorm WarningJAN45 min
Jul 13, 1:24 PM CDTSevere Thunderstorm WarningJAN51 min
Jul 13, 1:49 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 16, 1:55 PM CDTHeat AdvisoryJAN29 hr
Jul 18, 1:52 PM CDTHeat AdvisoryJAN29 hr
Jul 19, 11:12 AM CDTExcessive Heat WarningJAN32 hr
Jul 20, 2:05 PM CDTHeat AdvisoryJAN31 hr
Jul 21, 9:45 AM CDTExcessive Heat WarningJAN11 hr
Jul 21, 3:12 PM CDTHeat AdvisoryJAN28 hr
Jul 21, 3:20 PM CDTMesoscale DiscussionSPC85 min
Jul 21, 3:58 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 21, 5:37 PM CDTMesoscale DiscussionSPC83 min
Jul 22, 2:29 PM CDTHeat AdvisoryJAN23 hr
Jul 23, 1:58 PM CDTHeat AdvisoryJAN29 hr
Jul 24, 2:32 PM CDTHeat AdvisoryJAN28 hr
Jul 25, 2:44 PM CDTHeat AdvisoryJAN28 hr
Jul 26, 2:49 PM CDTHeat AdvisoryJAN28 hr
Jul 27, 1:38 PM CDTHeat AdvisoryJAN29 hr
Jul 28, 2:50 PM CDTHeat AdvisoryJAN28 hr
Jul 29, 2:24 PM CDTMesoscale DiscussionSPC2 hr
Aug 3, 4:55 AM CDTHeat AdvisoryJAN14 hr
Aug 7, 1:47 PM CDTHeat AdvisoryJAN29 hr
Aug 8, 7:30 PM CDTSpecial Weather StatementJAN45 min
Aug 10, 2:36 PM CDTSpecial Weather StatementJAN24 min
Aug 15, 3:40 AM CDTHeat AdvisoryJAN15 hr
Aug 31, 2:20 AM CDTDense Fog AdvisoryJAN4 hr
Sep 9, 3:07 PM CDTSpecial Weather StatementJAN38 min
Sep 26, 2:46 PM CDTFire Weather WatchJAN24 hr
Sep 27, 2:22 PM CDTRed Flag WarningJAN30 hr
Oct 12, 2:52 PM CDTMesoscale DiscussionSPC113 min
Oct 12, 3:56 PM CDTSevere Thunderstorm WatchSPC6 hr
Oct 12, 4:30 PM CDTSevere Thunderstorm Warning Considerable damage threatJAN45 min
Oct 12, 5:02 PM CDTMesoscale DiscussionSPC88 min
Oct 12, 5:03 PM CDTSevere Thunderstorm Warning Considerable damage threatJAN42 min
Oct 12, 5:28 PM CDTSevere Thunderstorm WarningJAN27 min
Oct 12, 10:36 PM CDTSpecial Weather StatementJAN54 min
Oct 17, 2:45 AM CDTFreeze WatchJAN23 hr
Oct 18, 2:11 AM CDTFreeze WatchJAN25 hr
Oct 18, 2:11 AM CDTFreeze WarningJAN31 hr
Oct 19, 2:41 AM CDTFreeze WarningJAN30 hr
Nov 7, 12:50 AM CSTDense Fog AdvisoryJAN8 hr
Nov 11, 2:24 PM CSTFreeze WatchJAN13 hr
Nov 12, 2:58 AM CSTFreeze WarningJAN29 hr
Nov 29, 11:20 AM CSTMesoscale DiscussionSPC2 hr
Nov 29, 12:11 PM CSTTornado Watch PDSSPC7 hr
Nov 29, 4:10 PM CSTSevere Thunderstorm WarningJAN65 min
Nov 29, 6:52 PM CSTTornado Watch PDSSPC9 hr
Dec 13, 8:43 AM CSTFlood WatchJAN33 hr
Dec 13, 11:05 PM CSTMesoscale DiscussionSPC115 min
Dec 13, 11:42 PM CSTTornado WatchSPC6 hr
Dec 14, 12:13 AM CSTTornado WarningJAN62 min
Dec 20, 3:16 AM CSTHard Freeze WatchJAN23 hr
Dec 21, 2:34 AM CSTHard Freeze WarningJAN4 days
Dec 21, 11:48 AM CSTWind Chill AdvisoryJAN70 hr
Dec 22, 3:13 PM CSTWind Chill WarningJAN21 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 archive20212023

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.