Alert archive / Louisiana / Tornado Warnings

Tornado Warnings in Louisiana, 2018

178 tornado warnings in 2018. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of tornado warnings reaches back to 1986.

Tornado Warnings by county

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

Tornado Warnings
178
Busiest month
April71 tornado warnings
Busiest day
April 14, 201837 tornado warnings

Over time

By month

Warning verification

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

38 of 178 tornado warnings covering Louisiana in 2018 had a tornado report inside them; 63 of 100 tornado reports fell inside a warning, on average 17 minutes after it went out.

Louisiana, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings1783879%10063%17 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 New Orleans, LA: tornado warnings43491%2438%20 min
NWS Shreveport, LA: tornado warnings1232381%5775%18 min
NWS Lake Charles, LA: tornado warnings541278%3839%12 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.

IssuedProductOfficeCountiesLasted
Jan 21, 10:54 PM CSTTornado WarningSHVSabine33 min
Jan 22, 12:52 AM CSTTornado WarningSHVBienville, Jackson, Natchitoches, Red River40 min
Jan 22, 2:55 AM CSTTornado WarningSHVGrant, Natchitoches35 min
Feb 6, 12:02 PM CSTTornado WarningLIXPlaquemines28 min
Feb 7, 3:36 AM CSTTornado WarningLCHVernon24 min
Feb 7, 3:46 AM CSTTornado WarningLCHRapides13 min
Feb 7, 3:56 AM CSTTornado WarningLCHRapides, Vernon34 min
Feb 21, 8:32 AM CSTTornado WarningLCHVernon28 min
Feb 21, 8:59 AM CSTTornado WarningLCHVernon31 min
Feb 21, 10:11 AM CSTTornado WarningLCHRapides, Vernon15 min
Feb 21, 11:16 AM CSTTornado WarningSHVGrant, Winn29 min
Feb 21, 11:58 AM CSTTornado WarningSHVGrant, LaSalle, Winn32 min
Feb 21, 12:44 PM CSTTornado WarningSHVCaldwell, LaSalle31 min
Feb 21, 1:01 PM CSTTornado WarningSHVCaldwell, LaSalle29 min
Mar 5, 2:14 PM CSTTornado WarningSHVClaiborne46 min
Mar 5, 3:19 PM CSTTornado WarningSHVUnion41 min
Mar 5, 5:58 PM CSTTornado WarningJANEast Carroll, Madison37 min
Mar 5, 6:58 PM CSTTornado WarningLCHVernon11 min
Mar 11, 10:02 AM CDTTornado WarningLIXEast Baton Rouge28 min
Mar 18, 8:49 PM CDTTornado WarningSHVDe Soto, Natchitoches, Sabine41 min
Mar 18, 9:21 PM CDTTornado WarningSHVNatchitoches, Sabine19 min
Mar 28, 3:25 PM CDTTornado WarningSHVJackson, Natchitoches, Winn35 min
Mar 28, 3:59 PM CDTTornado WarningSHVCaldwell, LaSalle, Winn31 min
Mar 28, 4:16 PM CDTTornado WarningSHVJackson, Ouachita29 min
Mar 28, 4:26 PM CDTTornado WarningSHVCaldwell34 min
Mar 28, 4:49 PM CDTTornado WarningJANFranklin, Richland56 min
Mar 28, 5:00 PM CDTTornado WarningSHVGrant, LaSalle, Winn30 min
Mar 28, 5:22 PM CDTTornado WarningJANEast Carroll, Madison, West Carroll41 min
Mar 28, 6:00 PM CDTTornado WarningJANCatahoula, Franklin, Madison, Tensas31 min
Apr 3, 4:14 PM CDTTornado WarningSHVDe Soto, Sabine6 min
Apr 3, 6:25 PM CDTTornado WarningJANFranklin, Richland46 min
Apr 3, 10:42 PM CDTTornado WarningLCHEvangeline12 min
Apr 3, 11:53 PM CDTTornado WarningLIXPointe Coupee, West Feliciana28 min
Apr 6, 4:45 PM CDTTornado WarningSHVUnion45 min
Apr 6, 5:18 PM CDTTornado WarningSHVCaldwell, Jackson, Ouachita42 min
Apr 6, 5:34 PM CDTTornado WarningSHVBossier, Caddo26 min
Apr 6, 5:58 PM CDTTornado WarningSHVBossier, Caddo, Webster10 min
Apr 6, 6:00 PM CDTTornado WarningSHVCaldwell, Ouachita45 min
Apr 6, 6:34 PM CDTTornado WarningSHVBienville, Bossier, Webster29 min
Apr 6, 6:48 PM CDTTornado WarningJANFranklin, Richland42 min
Apr 6, 6:50 PM CDTTornado WarningSHVBienville, Bossier40 min
Apr 6, 6:52 PM CDTTornado WarningSHVOuachita, Union53 min
Apr 6, 7:10 PM CDTTornado Warning EmergencySHVDe Soto, Red River50 min
Apr 6, 7:25 PM CDTTornado WarningSHVBienville, Red River8 min
Apr 6, 7:41 PM CDTTornado WarningSHVBienville, Natchitoches, Winn35 min
Apr 6, 7:43 PM CDTTornado WarningSHVCaldwell, Jackson, Ouachita47 min
Apr 6, 7:57 PM CDTTornado WarningSHVNatchitoches, Red River10 min
Apr 6, 8:08 PM CDTTornado WarningSHVDe Soto10 min
Apr 6, 8:13 PM CDTTornado WarningSHVDe Soto, Natchitoches, Red River11 min
Apr 6, 8:18 PM CDTTornado WarningSHVNatchitoches, Red River11 min
Apr 6, 9:17 PM CDTTornado WarningSHVGrant, Natchitoches16 min
Apr 7, 1:06 AM CDTTornado WarningLCHBeauregard, Vernon39 min
Apr 7, 1:27 AM CDTTornado WarningLCHBeauregard33 min
Apr 7, 1:27 AM CDTTornado WarningLIXWashington18 min
Apr 7, 1:53 AM CDTTornado WarningLCHAllen, Beauregard37 min
Apr 7, 2:15 AM CDTTornado WarningLCHAllen, Evangeline13 min
Apr 7, 5:46 AM CDTTornado WarningLIXJefferson, Saint Charles29 min
Apr 13, 6:28 PM CDTTornado WarningSHVLincoln, Ouachita, Union47 min
Apr 13, 6:31 PM CDTTornado WarningSHVJackson, Lincoln44 min
Apr 13, 6:53 PM CDTTornado WarningSHVCaldwell, Grant, LaSalle, Winn52 min
Apr 13, 7:11 PM CDTTornado Warning Tornado observedSHVUnion34 min
Apr 13, 7:24 PM CDTTornado Warning Tornado observedJANMorehouse34 min
Apr 13, 7:35 PM CDTTornado WarningSHVCaldwell, Ouachita40 min
Apr 13, 8:17 PM CDTTornado WarningSHVCaldwell, Ouachita28 min
Apr 13, 8:28 PM CDTTornado WarningJANRichland62 min
Apr 13, 8:35 PM CDTTornado WarningJANRichland55 min
Apr 13, 9:04 PM CDTTornado WarningJANMorehouse, Richland, West Carroll56 min
Apr 13, 11:54 PM CDTTornado WarningSHVCaddo21 min
Apr 14, 12:14 AM CDTTornado WarningSHVBossier, Caddo31 min
Apr 14, 12:43 AM CDTTornado WarningSHVBossier, Claiborne, Webster32 min
Apr 14, 12:46 AM CDTTornado WarningSHVBossier, Claiborne, Webster29 min
Apr 14, 1:08 AM CDTTornado WarningSHVClaiborne, Webster25 min
Apr 14, 1:11 AM CDTTornado WarningSHVClaiborne34 min
Apr 14, 1:30 AM CDTTornado WarningSHVClaiborne, Union33 min
Apr 14, 1:52 AM CDTTornado WarningSHVBienville, Jackson, Lincoln, Ouachita, Union38 min
Apr 14, 1:56 AM CDTTornado WarningSHVNatchitoches, Winn34 min
Apr 14, 2:26 AM CDTTornado WarningSHVJackson, Winn34 min
Apr 14, 2:27 AM CDTTornado WarningSHVLincoln, Ouachita, Union33 min
Apr 14, 2:31 AM CDTTornado WarningSHVJackson, Lincoln, Ouachita29 min
Apr 14, 2:51 AM CDTTornado WarningSHVCaldwell, Jackson, Ouachita24 min
Apr 14, 2:54 AM CDTTornado WarningJANMorehouse51 min
Apr 14, 2:59 AM CDTTornado WarningSHVJackson, Ouachita, Union31 min
Apr 14, 3:14 AM CDTTornado WarningSHVCaldwell, Ouachita20 min
Apr 14, 3:30 AM CDTTornado WarningJANEast Carroll, West Carroll49 min
Apr 14, 6:30 AM CDTTornado WarningLIXPointe Coupee15 min
Apr 14, 6:42 AM CDTTornado WarningLCHLafayette, Saint Martin, Vermilion33 min
Apr 14, 6:49 AM CDTTornado WarningLCHIberia, Lafayette, Saint Martin, Vermilion26 min
Apr 14, 7:31 AM CDTTornado WarningLIXEast Feliciana, Saint Helena44 min
Apr 14, 7:57 AM CDTTornado WarningLIXEast Baton Rouge, East Feliciana, Livingston, Saint Helena, West Baton Rouge48 min
Apr 14, 8:03 AM CDTTornado WarningLIXSaint Helena, Tangipahoa42 min
Apr 14, 8:18 AM CDTTornado WarningLIXAscension, East Baton Rouge, Livingston, Tangipahoa42 min
Apr 14, 8:22 AM CDTTornado WarningLIXSaint Helena, Tangipahoa38 min
Apr 14, 8:49 AM CDTTornado WarningLIXSaint Tammany, Tangipahoa, Washington41 min
Apr 14, 8:55 AM CDTTornado WarningLIXTangipahoa, Washington35 min
Apr 14, 9:17 AM CDTTornado WarningLCHSaint Martin13 min
Apr 14, 9:27 AM CDTTornado WarningLIXAssumption, Lafourche, Saint James33 min
Apr 14, 10:52 AM CDTTornado Warning Tornado observedLIXSaint Tammany12 min
Apr 22, 10:04 AM CDTTornado WarningLIXJefferson, Lafourche26 min
Apr 22, 10:14 AM CDTTornado WarningLIXJefferson, Saint Charles14 min
Apr 22, 10:26 AM CDTTornado WarningLIXJefferson, Plaquemines, Saint Bernard34 min
Jun 19, 12:59 PM CDTTornado WarningLCHCalcasieu31 min
Jun 22, 3:03 PM CDTTornado WarningJANFranklin, Richland42 min
Jun 22, 3:29 PM CDTTornado WarningJANFranklin, Madison46 min
Jul 3, 5:06 PM CDTTornado WarningLCHCameron9 min
Jul 3, 5:14 PM CDTTornado WarningLCHCameron16 min
Jul 5, 9:06 PM CDTTornado WarningLIXEast Baton Rouge, West Baton Rouge24 min
Aug 1, 6:17 AM CDTTornado WarningLIXSaint Charles28 min
Oct 13, 6:13 PM CDTTornado WarningSHVCaddo7 min
Oct 15, 3:06 PM CDTTornado WarningLCHAcadia24 min
Oct 25, 8:30 AM CDTTornado WarningLIXOrleans, Plaquemines, Saint Bernard30 min
Oct 31, 8:15 PM CDTTornado WarningLCHBeauregard26 min
Oct 31, 8:44 PM CDTTornado WarningLCHBeauregard31 min
Oct 31, 9:43 PM CDTTornado WarningLCHBeauregard17 min
Oct 31, 10:38 PM CDTTornado WarningLCHRapides25 min
Oct 31, 11:08 PM CDTTornado WarningLCHRapides37 min
Oct 31, 11:36 PM CDTTornado Warning Tornado observedLCHRapides24 min
Oct 31, 11:45 PM CDTTornado WarningJANMorehouse45 min
Oct 31, 11:48 PM CDTTornado WarningLCHAllen, Beauregard, Evangeline, Rapides, Vernon27 min
Oct 31, 11:51 PM CDTTornado Warning Tornado observedSHVGrant, LaSalle39 min
Oct 31, 11:56 PM CDTTornado WarningLCHCalcasieu34 min
Oct 31, 11:57 PM CDTTornado WarningLCHCalcasieu, Cameron48 min
Nov 1, 12:14 AM CDTTornado WarningLCHEvangeline, Rapides31 min
Nov 1, 12:24 AM CDTTornado WarningLCHAvoyelles, Evangeline, Rapides24 min
Nov 1, 12:25 AM CDTTornado Warning Tornado observedSHVCaldwell, LaSalle41 min
Nov 1, 12:27 AM CDTTornado WarningLCHCalcasieu, Jefferson Davis22 min
Nov 1, 12:31 AM CDTTornado WarningLCHRapides15 min
Nov 1, 12:37 AM CDTTornado WarningJANCatahoula, Franklin53 min
Nov 1, 12:56 AM CDTTornado WarningLCHAvoyelles34 min
Nov 1, 1:11 AM CDTTornado WarningJANCatahoula, Concordia64 min
Nov 1, 1:19 AM CDTTornado WarningJANCatahoula, Concordia, Franklin, Tensas42 min
Nov 1, 1:22 AM CDTTornado WarningLCHAvoyelles12 min
Nov 1, 1:44 AM CDTTornado WarningJANMadison, Tensas46 min
Nov 1, 1:53 AM CDTTornado WarningJANConcordia42 min
Nov 1, 2:00 AM CDTTornado WarningJANEast Carroll45 min
Nov 1, 3:38 AM CDTTornado WarningLIXWashington37 min
Nov 1, 4:27 AM CDTTornado WarningLIXSaint Tammany15 min
Nov 4, 5:17 AM CSTTornado WarningLCHVermilion28 min
Nov 4, 5:54 AM CSTTornado WarningLCHVermilion36 min
Nov 5, 3:51 PM CSTTornado WarningSHVSabine24 min
Nov 5, 4:08 PM CSTTornado WarningSHVGrant, Natchitoches, Winn37 min
Nov 5, 4:12 PM CSTTornado WarningSHVNatchitoches, Sabine48 min
Nov 5, 4:38 PM CSTTornado Warning Tornado observedSHVWinn23 min
Nov 5, 4:44 PM CSTTornado WarningSHVDe Soto, Red River46 min
Nov 5, 4:48 PM CSTTornado Warning Tornado observedSHVNatchitoches, Sabine27 min
Nov 5, 4:54 PM CSTTornado WarningSHVWinn36 min
Nov 5, 4:59 PM CSTTornado WarningSHVBienville46 min
Nov 5, 5:10 PM CSTTornado Warning Tornado observedSHVNatchitoches, Winn50 min
Nov 5, 5:24 PM CSTTornado WarningSHVCaldwell, Jackson, Winn51 min
Nov 5, 5:41 PM CSTTornado WarningSHVBienville, Jackson, Lincoln36 min
Nov 5, 5:44 PM CSTTornado Warning Tornado observedSHVNatchitoches, Winn33 min
Nov 5, 7:12 PM CSTTornado WarningJANMorehouse32 min
Nov 7, 12:15 PM CSTTornado WarningLIXWashington13 min
Nov 7, 12:31 PM CSTTornado WarningLIXSaint Tammany, Tangipahoa, Washington29 min
Nov 7, 12:39 PM CSTTornado WarningLIXLivingston, Tangipahoa9 min
Nov 7, 1:00 PM CSTTornado WarningLIXWashington30 min
Nov 12, 4:11 AM CSTTornado WarningLIXLafourche37 min
Nov 12, 5:09 AM CSTTornado WarningLIXLafourche11 min
Nov 25, 12:32 PM CSTTornado WarningLIXLafourche, Saint Charles28 min
Nov 25, 12:56 PM CSTTornado WarningLIXJefferson, Lafourche, Plaquemines, Saint Charles34 min
Nov 25, 1:27 PM CSTTornado WarningLIXPlaquemines, Saint Bernard33 min
Dec 27, 1:23 AM CSTTornado WarningSHVBossier, Caddo37 min
Dec 27, 1:37 AM CSTTornado WarningSHVBossier, Caddo38 min
Dec 27, 1:54 AM CSTTornado WarningSHVBossier, Webster25 min
Dec 27, 2:07 AM CSTTornado WarningSHVCaddo, De Soto27 min
Dec 27, 6:38 AM CSTTornado WarningLCHRapides, Vernon37 min
Dec 27, 6:40 AM CSTTornado WarningSHVNatchitoches, Sabine50 min
Dec 27, 7:11 AM CSTTornado WarningLCHVernon34 min
Dec 27, 7:11 AM CSTTornado WarningLCHCalcasieu34 min
Dec 27, 7:37 AM CSTTornado WarningLCHCalcasieu19 min
Dec 27, 8:41 AM CSTTornado WarningLCHAllen, Evangeline, Rapides34 min
Dec 27, 8:41 AM CSTTornado WarningLCHAllen, Evangeline22 min
Dec 27, 8:44 AM CSTTornado WarningJANFranklin, Madison, Tensas29 min
Dec 27, 9:14 AM CSTTornado WarningLCHAvoyelles, Evangeline, Rapides31 min
Dec 27, 9:28 AM CSTTornado WarningLCHAvoyelles, Evangeline, Saint Landry32 min
Dec 27, 9:42 AM CSTTornado WarningLCHAcadia, Cameron, Jefferson Davis, Vermilion33 min
Dec 27, 10:14 AM CSTTornado WarningLCHAcadia, Lafayette, Vermilion31 min
Dec 27, 11:50 AM CSTTornado WarningLIXPointe Coupee, West Feliciana8 min
Dec 27, 12:53 PM CSTTornado WarningLIXEast Feliciana, Saint Helena, Tangipahoa37 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

20 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordThe 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.