Alert archive / Mississippi / Alcorn County

Weather alerts in Alcorn County, Mississippi, 2022

129 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Alcorn County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts
129
Warnings
25
Watches
18
Advisories
49
Busiest month
March16 alerts
Busiest day
March 30, 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 1 tornado warnings covering Alcorn County in 2022 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Alcorn County, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%10%
Severe thunderstorm warnings13838%771%25 min
Flash flood warnings010%

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Memphis, TN: tornado warnings51982%1741%12 min
NWS Memphis, TN: severe thunderstorm warnings24512947%36870%21 min
NWS Memphis, TN: flash flood warnings19668%1560%58 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, 3:52 AM CSTWind AdvisoryMEG11 hr
Jan 1, 1:30 PM CSTTornado WatchSPC9 hr
Jan 1, 1:57 PM CSTMesoscale DiscussionSPC93 min
Jan 1, 3:27 PM CSTMesoscale DiscussionSPC93 min
Jan 1, 3:41 PM CSTSpecial Weather StatementMEG34 min
Jan 2, 3:26 AM CSTWinter Weather AdvisoryMEG20 hr
Jan 5, 12:05 PM CSTWinter Weather AdvisoryMEG27 hr
Jan 14, 3:27 AM CSTWinter Storm WatchMEG32 hr
Jan 15, 11:50 AM CSTWinter Storm WarningMEG26 hr
Jan 15, 11:50 AM CSTWinter Weather AdvisoryMEG27 hr
Feb 2, 1:58 PM CSTWinter Weather AdvisoryMEG40 hr
Feb 14, 3:31 PM CSTRed Flag WarningMEG26 hr
Feb 16, 3:27 AM CSTWind AdvisoryMEG41 hr
Feb 17, 1:46 PM CSTTornado WatchSPC6 hr
Feb 20, 2:32 PM CSTFlood WatchMEG63 hr
Feb 22, 3:03 PM CSTMesoscale DiscussionSPC117 min
Feb 22, 3:13 PM CSTSpecial Weather StatementMEG32 min
Feb 22, 3:48 PM CSTSpecial Weather StatementMEG42 min
Feb 22, 6:54 PM CSTTornado WarningMEG36 min
Feb 24, 3:19 PM CSTDense Fog AdvisoryMEG6 hr
Mar 10, 2:52 PM CSTWinter Weather AdvisoryMEG36 hr
Mar 11, 8:24 PM CSTMesoscale DiscussionSPC5 hr
Mar 17, 2:34 AM CDTDense Fog AdvisoryMEG7 hr
Mar 21, 3:08 AM CDTFlood WatchMEG40 hr
Mar 21, 2:46 PM CDTWind AdvisoryMEG25 hr
Mar 22, 11:57 AM CDTMesoscale DiscussionSPC2 hr
Mar 22, 12:42 PM CDTTornado WatchSPC6 hr
Mar 26, 3:29 AM CDTFrost AdvisoryMEG30 hr
Mar 29, 3:04 AM CDTWind AdvisoryMEG25 hr
Mar 30, 3:44 AM CDTHigh Wind WarningMEG16 hr
Mar 30, 12:16 PM CDTTornado WatchSPC9 hr
Mar 30, 5:12 PM CDTSevere Thunderstorm Warning Considerable damage threatMEG48 min
Mar 30, 5:59 PM CDTSevere Thunderstorm WarningMEG46 min
Mar 30, 5:59 PM CDTMesoscale DiscussionSPC91 min
Mar 30, 6:39 PM CDTSevere Thunderstorm WarningMEG66 min
Mar 31, 2:50 AM CDTFrost AdvisoryMEG30 hr
Apr 8, 5:55 AM CDTFrost AdvisoryMEG25 hr
Apr 10, 3:06 AM CDTRed Flag WarningMEG17 hr
Apr 12, 2:25 AM CDTSevere Thunderstorm WarningMEG50 min
Apr 12, 2:50 PM CDTWind AdvisoryMEG31 hr
Apr 13, 1:42 PM CDTTornado WatchSPC7 hr
Apr 13, 5:00 PM CDTMesoscale DiscussionSPC90 min
Apr 13, 6:08 PM CDTSevere Thunderstorm Warning Considerable damage threatMEG52 min
Apr 13, 6:34 PM CDTSevere Thunderstorm Warning Destructive damage threatMEG41 min
Apr 13, 6:58 PM CDTAreal Flood AdvisoryMEG3 hr
Apr 13, 7:38 PM CDTAreal Flood AdvisoryMEG3 hr
Apr 15, 2:03 PM CDTFlood WatchMEG26 hr
Apr 15, 9:26 PM CDTMesoscale DiscussionSPC2 hr
Apr 15, 10:02 PM CDTSevere Thunderstorm WatchSPC6 hr
May 2, 2:33 PM CDTMesoscale DiscussionSPC2 hr
May 2, 3:12 PM CDTSevere Thunderstorm WarningMEG48 min
May 2, 3:47 PM CDTSevere Thunderstorm WarningMEG43 min
May 5, 12:44 PM CDTSevere Thunderstorm WatchSPC8 hr
May 5, 4:56 PM CDTMesoscale DiscussionSPC94 min
May 5, 5:11 PM CDTSevere Thunderstorm WarningMEG46 min
May 8, 5:23 AM CDTDense Fog AdvisoryMEG4 hr
May 15, 3:40 PM CDTSevere Thunderstorm WatchSPC5 hr
May 15, 6:23 PM CDTMesoscale DiscussionSPC67 min
May 21, 10:12 PM CDTSpecial Weather StatementMEG33 min
May 21, 10:39 PM CDTSpecial Weather StatementMEG36 min
May 21, 11:14 PM CDTAreal Flood AdvisoryMEG3 hr
May 24, 6:30 PM CDTSpecial Weather StatementMEG30 min
May 25, 2:34 PM CDTMesoscale DiscussionSPC86 min
Jun 6, 5:34 PM CDTMesoscale DiscussionSPC2 hr
Jun 7, 1:16 AM CDTSevere Thunderstorm WarningMEG44 min
Jun 8, 11:50 AM CDTSevere Thunderstorm WarningMEG22 min
Jun 10, 11:32 PM CDTDense Fog AdvisoryMEG9 hr
Jun 11, 2:26 PM CDTHeat AdvisoryMEG30 hr
Jun 12, 4:14 AM CDTHeat AdvisoryMEG23 hr
Jun 13, 2:49 AM CDTExcessive Heat WarningMEG17 hr
Jun 13, 2:49 AM CDTHeat AdvisoryMEG36 hr
Jun 14, 2:47 AM CDTHeat AdvisoryMEG5 days
Jun 17, 12:03 PM CDTSpecial Weather StatementMEG27 min
Jun 17, 12:28 PM CDTSpecial Weather StatementMEG32 min
Jun 17, 12:59 PM CDTSpecial Weather StatementMEG31 min
Jun 21, 2:36 PM CDTHeat AdvisoryMEG29 hr
Jun 26, 3:49 AM CDTHeat AdvisoryMEG14 hr
Jun 26, 10:08 AM CDTMesoscale DiscussionSPC2 hr
Jul 4, 3:27 AM CDTHeat AdvisoryMEG47 hr
Jul 5, 12:37 PM CDTExcessive Heat WarningMEG4 days
Jul 5, 7:25 PM CDTHeat AdvisoryMEG8 hr
Jul 6, 2:55 AM CDTHeat AdvisoryMEG24 hr
Jul 9, 6:36 AM CDTSevere Thunderstorm WarningMEG39 min
Jul 13, 12:30 AM CDTSpecial Weather StatementMEG30 min
Jul 13, 3:45 AM CDTSpecial Weather StatementMEG30 min
Jul 13, 5:23 AM CDTSpecial Weather StatementMEG52 min
Jul 19, 3:09 AM CDTHeat AdvisoryMEG42 hr
Jul 20, 3:29 PM CDTHeat AdvisoryMEG29 hr
Jul 22, 2:38 AM CDTHeat AdvisoryMEG6 days
Jul 24, 3:04 PM CDTHeat AdvisoryMEG3 days
Jul 28, 6:48 PM CDTSpecial Weather StatementMEG27 min
Aug 9, 5:28 PM CDTSpecial Weather StatementMEG32 min
Aug 9, 6:35 PM CDTAreal Flood AdvisoryMEG3 hr
Aug 10, 2:58 PM CDTAreal Flood AdvisoryMEG90 min
Aug 11, 4:30 AM CDTDense Fog AdvisoryMEG5 hr
Aug 22, 5:10 PM CDTAreal Flood AdvisoryMEG3 hr
Sep 6, 3:46 PM CDTSpecial Weather StatementMEG29 min
Sep 7, 1:19 AM CDTDense Fog AdvisoryMEG8 hr
Sep 12, 6:53 AM CDTDense Fog AdvisoryMEG2 hr
Sep 25, 7:23 AM CDTSpecial Weather StatementMEG37 min
Sep 26, 3:07 PM CDTFire Weather WatchMEG24 hr
Sep 27, 3:27 PM CDTRed Flag WarningMEG28 hr
Oct 12, 3:19 PM CDTSpecial Weather StatementMEG26 min
Oct 12, 3:43 PM CDTSpecial Weather StatementMEG32 min
Oct 12, 3:56 PM CDTSevere Thunderstorm WatchSPC6 hr
Oct 16, 2:55 PM CDTFreeze WarningMEG42 hr
Oct 16, 8:38 PM CDTFreeze WatchMEG7 hr
Oct 17, 3:20 AM CDTFreeze WatchMEG23 hr
Oct 18, 2:46 AM CDTFreeze WarningMEG30 hr
Oct 19, 3:04 AM CDTFreeze WarningMEG30 hr
Oct 24, 2:11 PM CDTWind AdvisoryMEG29 hr
Oct 25, 11:21 AM CDTMesoscale DiscussionSPC2 hr
Oct 25, 12:15 PM CDTSpecial Weather StatementMEG45 min
Oct 25, 1:01 PM CDTSpecial Weather StatementMEG44 min
Nov 7, 12:28 AM CSTDense Fog AdvisoryMEG9 hr
Nov 28, 6:17 AM CSTDense Fog AdvisoryMEG2 hr
Nov 29, 10:56 AM CSTMesoscale DiscussionSPC2 hr
Nov 29, 11:30 AM CSTSevere Thunderstorm WarningMEG28 min
Nov 29, 6:19 PM CSTMesoscale DiscussionSPC86 min
Dec 7, 9:39 PM CSTDense Fog AdvisoryMEG13 hr
Dec 9, 1:23 AM CSTDense Fog AdvisoryMEG9 hr
Dec 9, 7:47 PM CSTDense Fog AdvisoryMEG14 hr
Dec 13, 10:11 AM CSTFlood WatchMEG33 hr
Dec 20, 10:09 AM CSTWind Chill WatchMEG18 hr
Dec 21, 3:42 AM CSTWind Chill WarningMEG56 hr
Dec 21, 2:25 PM CSTWinter Weather AdvisoryMEG37 hr
Dec 23, 3:26 AM CSTWind Chill AdvisoryMEG31 hr
Dec 25, 6:06 PM CSTWinter Weather AdvisoryMEG22 hr
Dec 27, 7:36 PM CSTFreezing Fog AdvisoryMEG8 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.