Alert archive / Mississippi / Clarke County

Weather alerts in Clarke County, Mississippi, 2015

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

Clarke County and its neighbors

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

Alerts
130
Warnings
29
Watches
16
Advisories
23
Busiest month
December21 alerts
Busiest day
December 23, 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 1 tornado warnings covering Clarke County in 2015 had a tornado report inside them.

Clarke County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings18761%6100%14 min
Flash flood warnings2150%5100%32 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, 2:54 PM CSTMesoscale DiscussionSPC96 min
Jan 3, 5:31 PM CSTMesoscale DiscussionSPC44 min
Jan 3, 9:42 PM CSTRiver Flood WarningJAN4 days
Jan 3, 10:03 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 1, 6:54 PM CSTSevere Thunderstorm WarningJAN38 min
Feb 16, 1:46 PM CSTMesoscale DiscussionSPC2 hr
Feb 16, 2:45 PM CSTWinter Weather AdvisoryJAN7 hr
Feb 20, 6:17 AM CSTFreezing Rain AdvisoryJAN5 hr
Feb 22, 4:21 AM CSTFreezing Rain AdvisoryJAN53 hr
Feb 23, 7:42 PM CSTMesoscale DiscussionSPC3 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 15, 5:03 AM CDTDense Fog AdvisoryJAN5 hr
Mar 18, 10:32 PM CDTSevere Thunderstorm WarningJAN43 min
Mar 18, 11:08 PM CDTSpecial Weather StatementJAN32 min
Mar 26, 2:48 PM CDTMesoscale DiscussionSPC2 hr
Apr 6, 1:06 PM CDTMesoscale DiscussionSPC114 min
Apr 15, 6:30 PM CDTMesoscale DiscussionSPC2 hr
Apr 18, 6:17 PM CDTMesoscale DiscussionSPC2 hr
Apr 19, 2:06 AM CDTMesoscale DiscussionSPC84 min
Apr 21, 6:11 AM CDTRiver Flood WarningJAN29 hr
Apr 25, 12:50 AM CDTTornado WatchSPC6 hr
Apr 25, 2:07 AM CDTMesoscale DiscussionSPC83 min
Apr 25, 4:12 AM CDTMesoscale DiscussionSPC63 min
May 19, 5:32 AM CDTDense Fog AdvisoryJAN3 hr
May 25, 2:38 AM CDTMesoscale DiscussionSPC3 hr
May 27, 11:51 AM CDTMesoscale DiscussionSPC54 min
May 27, 12:43 PM CDTSevere Thunderstorm WatchSPC4 hr
May 27, 3:06 PM CDTSevere Thunderstorm WarningJAN39 min
May 27, 3:12 PM CDTMesoscale DiscussionSPC93 min
May 30, 5:16 PM CDTMesoscale DiscussionSPC59 min
Jun 1, 4:09 AM CDTDense Fog AdvisoryJAN5 hr
Jun 10, 4:58 PM CDTSevere Thunderstorm WarningJAN42 min
Jun 13, 12:59 PM CDTSpecial Weather StatementJAN46 min
Jun 13, 2:00 PM CDTSpecial Weather StatementJAN45 min
Jun 14, 2:34 PM CDTSpecial Weather StatementJAN26 min
Jun 14, 2:57 PM CDTSpecial Weather StatementJAN33 min
Jun 17, 5:48 PM CDTSevere Thunderstorm WarningJAN21 min
Jun 17, 6:16 PM CDTSpecial Weather StatementJAN29 min
Jun 19, 4:14 PM CDTSevere Thunderstorm WarningJAN31 min
Jun 21, 2:51 PM CDTSevere Thunderstorm WarningJAN39 min
Jun 24, 4:08 AM CDTSpecial Weather StatementJAN37 min
Jun 24, 4:47 AM CDTSpecial Weather StatementJAN28 min
Jun 24, 11:14 AM CDTSpecial Weather StatementJAN31 min
Jun 24, 11:22 AM CDTSevere Thunderstorm WarningJAN53 min
Jun 24, 8:18 PM CDTSpecial Weather StatementJAN27 min
Jul 3, 5:36 PM CDTMesoscale DiscussionSPC84 min
Jul 4, 11:36 AM CDTMesoscale DiscussionSPC114 min
Jul 4, 1:12 PM CDTSevere Thunderstorm WarningJAN48 min
Jul 4, 1:59 PM CDTSpecial Weather StatementJAN31 min
Jul 4, 2:16 PM CDTSevere Thunderstorm WarningJAN44 min
Jul 12, 3:28 AM CDTHeat AdvisoryJAN11 days
Jul 19, 2:25 PM CDTSpecial Weather StatementJAN35 min
Jul 21, 6:54 PM CDTSpecial Weather StatementJAN36 min
Jul 24, 3:51 PM CDTSpecial Weather StatementJAN39 min
Jul 24, 9:37 PM CDTHeat AdvisoryJAN6 days
Jul 29, 1:44 PM CDTSpecial Weather StatementJAN31 min
Jul 29, 2:12 PM CDTMesoscale DiscussionSPC2 hr
Jul 30, 5:27 PM CDTSevere Thunderstorm WarningJAN20 min
Aug 7, 3:05 PM CDTHeat AdvisoryJAN37 hr
Aug 8, 4:57 AM CDTExcessive Heat WarningJAN62 hr
Aug 8, 4:18 PM CDTSpecial Weather StatementJAN27 min
Aug 8, 4:38 PM CDTSpecial Weather StatementJAN37 min
Aug 8, 4:55 PM CDTSevere Thunderstorm WarningJAN50 min
Aug 10, 4:06 AM CDTHeat AdvisoryJAN39 hr
Aug 11, 7:51 AM CDTSpecial Weather StatementJAN24 min
Aug 11, 8:19 AM CDTSpecial Weather StatementJAN26 min
Aug 11, 8:55 AM CDTSpecial Weather StatementJAN35 min
Aug 11, 3:49 PM CDTSpecial Weather StatementJAN26 min
Aug 18, 3:38 PM CDTMesoscale DiscussionSPC3 hr
Aug 19, 12:30 PM CDTMesoscale DiscussionSPC3 hr
Aug 20, 4:48 PM CDTSpecial Weather StatementJAN42 min
Aug 20, 5:45 PM CDTSpecial Weather StatementJAN45 min
Aug 21, 5:09 PM CDTSpecial Weather StatementJAN51 min
Aug 21, 5:57 PM CDTSpecial Weather StatementJAN48 min
Aug 23, 2:27 PM CDTSpecial Weather StatementJAN48 min
Aug 23, 3:19 PM CDTSpecial Weather StatementJAN26 min
Sep 10, 3:21 PM CDTSpecial Weather StatementJAN24 min
Sep 10, 4:02 PM CDTSpecial Weather StatementJAN28 min
Oct 15, 2:12 PM CDTFire Weather WatchJAN3 days
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, 4:46 PM CDTSevere Thunderstorm WarningJAN44 min
Oct 31, 5:14 PM CDTFlash Flood WarningJAN2 hr
Oct 31, 5:21 PM CDTSevere Thunderstorm WarningJAN24 min
Oct 31, 7:16 PM CDTAreal Flood WarningJAN3 hr
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 18, 1:14 AM CSTMesoscale DiscussionSPC2 hr
Nov 18, 2:49 AM CSTTornado WatchSPC6 hr
Nov 18, 3:31 AM CSTSpecial Weather StatementJAN44 min
Nov 18, 10:41 AM CSTRiver Flood WarningJAN72 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 22, 5:00 AM CSTDense Fog AdvisoryJAN5 hr
Dec 23, 9:08 AM CSTSpecial Weather StatementJAN37 min
Dec 23, 1:33 PM CSTMesoscale DiscussionSPC57 min
Dec 23, 2:17 PM CSTTornado WatchSPC6 hr
Dec 23, 4:48 PM CSTSpecial Weather StatementJAN42 min
Dec 23, 5:09 PM CSTTornado WarningJAN24 min
Dec 23, 5:12 PM CSTMesoscale DiscussionSPC63 min
Dec 23, 5:29 PM CSTFlash Flood WarningJAN3 hr
Dec 23, 5:37 PM CSTSpecial Weather StatementJAN23 min
Dec 23, 8:20 PM CSTTornado WatchSPC8 hr
Dec 24, 4:39 PM CSTSevere Thunderstorm WarningJAN25 min
Dec 24, 6:32 PM CSTSevere Thunderstorm WarningJAN58 min
Dec 25, 4:27 PM CSTSevere Thunderstorm WarningJAN48 min
Dec 25, 4:28 PM CSTMesoscale DiscussionSPC3 hr
Dec 28, 2:03 AM CSTMesoscale DiscussionSPC117 min
Dec 28, 2:23 AM CSTTornado WatchSPC8 hr
Dec 28, 5:14 AM CSTMesoscale DiscussionSPC2 hr
Dec 28, 7:03 AM CSTSpecial Weather StatementJAN42 min
Dec 28, 7:33 AM CSTSevere Thunderstorm WarningJAN45 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.