Alert archive / Mississippi / Franklin County

Weather alerts in Franklin County, Mississippi, 2018

92 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Franklin County and its neighbors

Each county as a circle sized by its count in 2018. Tap one for its archive.

Alerts
92
Warnings
19
Watches
13
Advisories
19
Busiest month
April20 alerts
Busiest day
April 14, 20187 alerts

Over time

By month

Warning verification

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

2 of 2 tornado warnings covering Franklin County in 2018 had a tornado report inside them; 3 of 3 tornado reports fell inside a warning, on average 28 minutes after it went out.

Franklin County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings220%3100%28 min
Severe thunderstorm warnings13562%580%33 min
Flash flood warnings220%1100%53 min

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jackson, MS: tornado warnings912869%7751%15 min
NWS Jackson, MS: severe thunderstorm warnings44925044%72475%25 min
NWS Jackson, MS: flash flood warnings1217439%24585%93 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 9, 7:18 PM CSTDense Fog AdvisoryJAN10 hr
Jan 15, 2:45 PM CSTWind Chill AdvisoryJAN45 hr
Jan 15, 2:45 PM CSTWinter Weather AdvisoryJAN33 hr
Jan 15, 2:56 PM CSTHard Freeze WarningJAN69 hr
Jan 22, 7:58 AM CSTSpecial Weather StatementJAN32 min
Feb 7, 4:11 AM CSTMesoscale DiscussionSPC3 hr
Feb 21, 2:37 PM CSTSpecial Weather StatementJAN23 min
Feb 21, 2:53 PM CSTSevere Thunderstorm WarningJAN52 min
Feb 21, 3:03 PM CSTMesoscale DiscussionSPC117 min
Feb 24, 5:29 PM CSTMesoscale DiscussionSPC91 min
Mar 19, 12:21 AM CDTSpecial Weather StatementJAN39 min
Mar 19, 4:55 AM CDTDense Fog AdvisoryJAN5 hr
Mar 29, 6:19 AM CDTSpecial Weather StatementJAN41 min
Apr 3, 4:51 PM CDTSevere Thunderstorm WatchSPC5 hr
Apr 3, 7:43 PM CDTMesoscale DiscussionSPC92 min
Apr 3, 8:40 PM CDTSpecial Weather StatementJAN35 min
Apr 6, 2:17 PM CDTMesoscale DiscussionSPC58 min
Apr 6, 3:20 PM CDTTornado WatchSPC8 hr
Apr 6, 3:33 PM CDTSpecial Weather StatementJAN42 min
Apr 6, 3:39 PM CDTSevere Thunderstorm WarningJAN66 min
Apr 6, 6:02 PM CDTMesoscale DiscussionSPC58 min
Apr 6, 8:53 PM CDTSevere Thunderstorm WatchSPC10 hr
Apr 6, 10:51 PM CDTSevere Thunderstorm WarningJAN39 min
Apr 6, 10:57 PM CDTMesoscale DiscussionSPC93 min
Apr 6, 11:36 PM CDTSevere Thunderstorm WarningJAN54 min
Apr 12, 2:51 PM CDTFlash Flood WatchJAN52 hr
Apr 13, 7:22 PM CDTTornado WatchSPC3 hr
Apr 13, 10:12 PM CDTTornado WatchSPC10 hr
Apr 14, 2:10 AM CDTMesoscale DiscussionSPC2 hr
Apr 14, 6:37 AM CDTMesoscale DiscussionSPC83 min
Apr 14, 6:44 AM CDTSevere Thunderstorm WarningJAN61 min
Apr 14, 6:57 AM CDTTornado WatchSPC7 hr
Apr 14, 7:27 AM CDTSevere Thunderstorm WarningJAN44 min
May 18, 5:26 PM CDTSpecial Weather StatementJAN34 min
May 18, 5:33 PM CDTSevere Thunderstorm WarningJAN27 min
May 22, 2:21 PM CDTSevere Thunderstorm WarningJAN39 min
May 23, 3:38 PM CDTSpecial Weather StatementJAN37 min
May 26, 2:43 PM CDTSpecial Weather StatementJAN32 min
Jun 3, 3:49 PM CDTMesoscale DiscussionSPC56 min
Jun 6, 5:15 AM CDTDense Fog AdvisoryJAN3 hr
Jun 12, 5:47 PM CDTSpecial Weather StatementJAN43 min
Jun 12, 5:49 PM CDTSevere Thunderstorm WarningJAN26 min
Jun 20, 3:39 PM CDTSpecial Weather StatementJAN36 min
Jun 22, 10:55 AM CDTSevere Thunderstorm WatchSPC10 hr
Jun 22, 3:03 PM CDTMesoscale DiscussionSPC87 min
Jun 26, 3:47 AM CDTHeat AdvisoryJAN16 hr
Jun 29, 7:09 PM CDTSpecial Weather StatementJAN66 min
Jul 2, 7:06 PM CDTSpecial Weather StatementJAN24 min
Jul 3, 12:19 PM CDTMesoscale DiscussionSPC116 min
Jul 11, 5:18 PM CDTSpecial Weather StatementJAN27 min
Jul 15, 3:55 AM CDTHeat AdvisoryJAN15 hr
Jul 16, 3:16 AM CDTHeat AdvisoryJAN16 hr
Jul 18, 2:45 PM CDTHeat AdvisoryJAN28 hr
Jul 19, 3:13 PM CDTHeat AdvisoryJAN29 hr
Jul 20, 4:10 PM CDTHeat AdvisoryJAN28 hr
Jul 21, 2:27 PM CDTHeat AdvisoryJAN30 hr
Jul 30, 12:57 PM CDTMesoscale DiscussionSPC3 hr
Jul 30, 4:54 PM CDTSpecial Weather StatementJAN36 min
Aug 5, 3:24 PM CDTSpecial Weather StatementJAN51 min
Aug 6, 8:50 PM CDTSpecial Weather StatementJAN40 min
Aug 18, 6:18 PM CDTSevere Thunderstorm WarningJAN42 min
Aug 18, 7:13 PM CDTSpecial Weather StatementJAN47 min
Aug 18, 7:17 PM CDTSevere Thunderstorm WarningJAN43 min
Aug 28, 3:02 PM CDTSpecial Weather StatementJAN28 min
Sep 3, 4:18 AM CDTFlash Flood WatchJAN4 days
Sep 11, 4:08 PM CDTSpecial Weather StatementJAN52 min
Sep 30, 6:55 PM CDTSpecial Weather StatementJAN35 min
Oct 1, 4:58 PM CDTSpecial Weather StatementJAN32 min
Oct 31, 10:01 PM CDTMesoscale DiscussionSPC89 min
Oct 31, 11:07 PM CDTTornado WatchSPC9 hr
Nov 1, 1:19 AM CDTMesoscale DiscussionSPC116 min
Nov 1, 2:06 AM CDTSevere Thunderstorm WarningJAN54 min
Nov 1, 2:22 AM CDTTornado Warning Tornado observedJAN53 min
Nov 1, 2:26 AM CDTTornado WarningJAN49 min
Nov 4, 9:50 PM CSTDense Fog AdvisoryJAN10 hr
Nov 13, 3:34 PM CSTFreeze WatchJAN18 hr
Nov 14, 9:33 AM CSTFreeze WarningJAN23 hr
Nov 14, 6:19 PM CSTSpecial Weather StatementJAN3 hr
Nov 23, 10:59 PM CSTDense Fog AdvisoryJAN10 hr
Dec 16, 2:23 PM CSTDense Fog AdvisoryJAN20 hr
Dec 18, 12:32 AM CSTDense Fog AdvisoryJAN9 hr
Dec 19, 9:37 PM CSTDense Fog AdvisoryJAN11 hr
Dec 26, 3:44 AM CSTFlash Flood WatchJAN52 hr
Dec 26, 12:40 PM CSTWind AdvisoryJAN27 hr
Dec 27, 9:00 AM CSTMesoscale DiscussionSPC60 min
Dec 27, 9:29 AM CSTTornado WatchSPC9 hr
Dec 27, 10:17 AM CSTFlash Flood WarningJAN3 hr
Dec 27, 10:40 AM CSTSevere Thunderstorm WarningJAN65 min
Dec 27, 11:37 AM CSTFlash Flood WarningJAN3 hr
Dec 27, 1:50 PM CSTMesoscale DiscussionSPC85 min
Dec 30, 5:31 PM CSTDense Fog AdvisoryJAN11 hr
Dec 31, 7:02 AM CSTMesoscale DiscussionSPC118 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 archive20172019

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.