Alert archive / Mississippi / Lamar County

Weather alerts in Lamar County, Mississippi, 2015

128 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lamar County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
128
Warnings
26
Watches
18
Advisories
20
Busiest month
December18 alerts
Busiest day
October 31, 20158 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 Lamar County in 2015 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Lamar County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%10%
Severe thunderstorm warnings161131%1794%19 min
Flash flood warnings4250%1100%104 min

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings531866%6781%17 min
NWS Jackson, MS: severe thunderstorm warnings44122349%52675%22 min
NWS Jackson, MS: flash flood warnings954256%11376%67 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 2, 3:01 PM CSTFlash Flood WatchJAN33 hr
Jan 3, 10:24 AM CSTMesoscale DiscussionSPC2 hr
Jan 3, 11:04 AM CSTTornado WatchSPC7 hr
Jan 3, 1:43 PM CSTMesoscale DiscussionSPC92 min
Jan 3, 5:31 PM CSTMesoscale DiscussionSPC44 min
Jan 3, 8:43 PM CSTAreal Flood WarningJAN10 hr
Jan 6, 5:05 AM CSTHard Freeze WatchJAN22 hr
Jan 6, 3:14 PM CSTHard Freeze WarningJAN51 hr
Jan 7, 3:23 AM CSTWind Chill AdvisoryJAN30 hr
Jan 7, 2:49 PM CSTWind AdvisoryJAN3 hr
Jan 8, 9:59 PM CSTWinter Weather AdvisoryJAN14 hr
Jan 9, 11:52 AM CSTWinter Weather AdvisoryJAN2 hr
Feb 16, 1:46 PM CSTMesoscale DiscussionSPC2 hr
Mar 2, 1:54 AM CSTDense Fog AdvisoryJAN8 hr
Mar 2, 2:39 PM CSTDense Fog AdvisoryJAN18 hr
Mar 10, 12:37 PM CDTFlash Flood WatchJAN8 hr
Mar 11, 3:29 PM CDTFlash Flood WatchJAN47 hr
Mar 15, 5:03 AM CDTDense Fog AdvisoryJAN5 hr
Mar 18, 9:50 PM CDTSpecial Weather StatementJAN30 min
Mar 26, 2:48 PM CDTMesoscale DiscussionSPC2 hr
Apr 6, 1:06 PM CDTMesoscale DiscussionSPC114 min
Apr 10, 12:05 PM CDTMesoscale DiscussionSPC85 min
Apr 13, 12:15 PM CDTSpecial Weather StatementJAN30 min
Apr 15, 3:46 PM CDTMesoscale DiscussionSPC89 min
Apr 15, 5:05 PM CDTSpecial Weather StatementJAN25 min
Apr 15, 5:15 PM CDTSevere Thunderstorm WarningJAN45 min
Apr 15, 6:26 PM CDTSpecial Weather StatementJAN34 min
Apr 15, 6:30 PM CDTMesoscale DiscussionSPC2 hr
Apr 15, 6:50 PM CDTSevere Thunderstorm WarningJAN40 min
Apr 18, 6:17 PM CDTMesoscale DiscussionSPC2 hr
Apr 19, 2:06 AM CDTMesoscale DiscussionSPC84 min
Apr 25, 9:35 AM CDTMesoscale DiscussionSPC115 min
Apr 25, 10:41 AM CDTSevere Thunderstorm WatchSPC7 hr
Apr 25, 1:50 PM CDTMesoscale DiscussionSPC85 min
Apr 27, 9:47 AM CDTMesoscale DiscussionSPC88 min
May 11, 12:30 PM CDTMesoscale DiscussionSPC2 hr
May 11, 1:44 PM CDTMesoscale DiscussionSPC2 hr
May 11, 4:38 PM CDTSpecial Weather StatementJAN52 min
May 19, 5:32 AM CDTDense Fog AdvisoryJAN3 hr
May 24, 12:42 PM CDTSpecial Weather StatementJAN33 min
May 24, 1:49 PM CDTTornado WatchSPC8 hr
May 24, 5:03 PM CDTMesoscale DiscussionSPC117 min
May 24, 7:42 PM CDTMesoscale DiscussionSPC93 min
May 25, 2:38 AM CDTMesoscale DiscussionSPC3 hr
May 25, 10:37 PM CDTTornado WatchSPC6 hr
May 27, 11:51 AM CDTMesoscale DiscussionSPC54 min
May 27, 12:43 PM CDTSevere Thunderstorm WatchSPC4 hr
May 27, 1:03 PM CDTSpecial Weather StatementJAN42 min
May 30, 5:16 PM CDTMesoscale DiscussionSPC59 min
May 30, 7:04 PM CDTSpecial Weather StatementJAN26 min
May 30, 7:06 PM CDTSpecial Weather StatementJAN24 min
May 30, 7:45 PM CDTSpecial Weather StatementJAN30 min
Jun 1, 4:09 AM CDTDense Fog AdvisoryJAN5 hr
Jun 11, 5:05 PM CDTSpecial Weather StatementJAN25 min
Jun 22, 6:39 PM CDTSpecial Weather StatementJAN36 min
Jun 22, 7:04 PM CDTSpecial Weather StatementJAN26 min
Jun 24, 12:03 PM CDTSpecial Weather StatementJAN27 min
Jun 24, 1:12 PM CDTSevere Thunderstorm WarningJAN63 min
Jun 24, 1:46 PM CDTFlash Flood WarningJAN119 min
Jun 24, 1:55 PM CDTMesoscale DiscussionSPC65 min
Jun 25, 6:36 PM CDTSpecial Weather StatementJAN24 min
Jun 26, 4:34 PM CDTSpecial Weather StatementJAN26 min
Jun 27, 2:25 PM CDTSpecial Weather StatementJAN50 min
Jun 30, 11:38 AM CDTMesoscale DiscussionSPC97 min
Jul 4, 1:41 PM CDTSpecial Weather StatementJAN34 min
Jul 4, 2:28 PM CDTSevere Thunderstorm WarningJAN62 min
Jul 5, 1:04 PM CDTSpecial Weather StatementJAN41 min
Jul 5, 1:22 PM CDTSevere Thunderstorm WarningJAN38 min
Jul 5, 1:44 PM CDTFlash Flood WarningJAN3 hr
Jul 5, 1:57 PM CDTSevere Thunderstorm WarningJAN63 min
Jul 9, 4:47 PM CDTSpecial Weather StatementJAN28 min
Jul 9, 5:01 PM CDTSpecial Weather StatementJAN29 min
Jul 12, 3:28 AM CDTHeat AdvisoryJAN11 days
Jul 24, 9:37 PM CDTHeat AdvisoryJAN6 days
Jul 25, 2:50 PM CDTSpecial Weather StatementJAN25 min
Jul 28, 4:02 PM CDTSpecial Weather StatementJAN28 min
Jul 30, 1:23 PM CDTSpecial Weather StatementJAN37 min
Jul 30, 1:36 PM CDTSevere Thunderstorm WarningJAN27 min
Jul 30, 3:12 PM CDTSpecial Weather StatementJAN33 min
Jul 30, 3:24 PM CDTSevere Thunderstorm WarningJAN31 min
Jul 30, 4:17 PM CDTSevere Thunderstorm WarningJAN43 min
Aug 5, 1:44 PM CDTSpecial Weather StatementJAN31 min
Aug 7, 3:05 PM CDTHeat AdvisoryJAN37 hr
Aug 8, 4:57 AM CDTExcessive Heat WarningJAN62 hr
Aug 8, 7:03 PM CDTSevere Thunderstorm WarningJAN57 min
Aug 8, 7:45 PM CDTSevere Thunderstorm WarningJAN60 min
Aug 10, 4:06 AM CDTHeat AdvisoryJAN39 hr
Aug 10, 6:49 PM CDTSevere Thunderstorm WarningJAN41 min
Sep 2, 3:24 PM CDTSpecial Weather StatementJAN36 min
Sep 6, 6:04 PM CDTSpecial Weather StatementJAN26 min
Oct 15, 2:12 PM CDTFire Weather WatchJAN3 days
Oct 25, 3:50 AM CDTFlash Flood WatchJAN30 hr
Oct 26, 4:55 AM CDTWind AdvisoryJAN14 hr
Oct 31, 3:54 AM CDTFlash Flood WatchJAN20 hr
Oct 31, 11:45 AM CDTTornado WatchSPC8 hr
Oct 31, 1:35 PM CDTMesoscale DiscussionSPC55 min
Oct 31, 3:36 PM CDTMesoscale DiscussionSPC54 min
Oct 31, 3:49 PM CDTSevere Thunderstorm WarningJAN53 min
Oct 31, 4:07 PM CDTSevere Thunderstorm WarningJAN38 min
Oct 31, 4:19 PM CDTTornado WarningJAN29 min
Oct 31, 5:42 PM CDTMesoscale DiscussionSPC93 min
Nov 1, 3:18 AM CSTFlash Flood WatchJAN12 hr
Nov 16, 10:35 AM CSTFlash Flood WatchJAN43 hr
Nov 16, 3:11 PM CSTWind AdvisoryJAN27 hr
Nov 17, 7:45 PM CSTTornado WatchSPC7 hr
Nov 17, 11:11 PM CSTMesoscale DiscussionSPC94 min
Nov 18, 1:14 AM CSTMesoscale DiscussionSPC2 hr
Nov 18, 8:25 PM CSTDense Fog AdvisoryJAN13 hr
Nov 21, 3:56 AM CSTFreeze WarningJAN53 hr
Nov 28, 4:30 AM CSTDense Fog AdvisoryJAN5 hr
Dec 10, 12:03 AM CSTDense Fog AdvisoryJAN9 hr
Dec 12, 2:50 PM CSTWind AdvisoryJAN33 hr
Dec 16, 4:50 PM CSTMesoscale DiscussionSPC2 hr
Dec 21, 5:47 PM CSTMesoscale DiscussionSPC118 min
Dec 22, 5:00 AM CSTDense Fog AdvisoryJAN5 hr
Dec 23, 7:45 AM CSTSevere Thunderstorm WarningJAN60 min
Dec 23, 1:33 PM CSTMesoscale DiscussionSPC57 min
Dec 23, 2:17 PM CSTTornado WatchSPC6 hr
Dec 23, 3:46 PM CSTSpecial Weather StatementJAN29 min
Dec 23, 5:12 PM CSTMesoscale DiscussionSPC63 min
Dec 24, 1:27 PM CSTFlash Flood WarningJAN3 hr
Dec 24, 4:16 PM CSTFlash Flood WarningJAN3 hr
Dec 27, 3:15 PM CSTMesoscale DiscussionSPC90 min
Dec 28, 2:03 AM CSTMesoscale DiscussionSPC117 min
Dec 28, 2:23 AM CSTTornado WatchSPC8 hr
Dec 28, 4:50 AM CSTTornado WarningJAN43 min
Dec 28, 5:14 AM CSTMesoscale DiscussionSPC2 hr
Dec 28, 5:25 AM CSTSevere Thunderstorm WarningJAN65 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 archive20142016

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.