Alert archive / Louisiana / Tornado Warnings
Tornado Warnings in Louisiana, 2014
54 tornado warnings in 2014. 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 2014. Tap one for its archive.
- Tornado Warnings
- 54
- Busiest month
- December13 tornado warnings
- Busiest day
- December 23, 201411 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.
7 of 54 tornado warnings covering Louisiana in 2014 had a tornado report inside them; 11 of 22 tornado reports fell inside a warning, on average 10 minutes after it went out.
Louisiana, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 54 | 7 | 87% | 22 | 50% | 10 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 20 | 2 | 90% | 16 | 19% | 13 min |
| NWS Lake Charles, LA: tornado warnings | 15 | 1 | 93% | 8 | 25% | 4 min |
| NWS New Orleans, LA: tornado warnings | 39 | 6 | 85% | 12 | 83% | 15 min |
| NWS Jackson, MS: tornado warnings | 87 | 27 | 69% | 147 | 87% | 27 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 5:42 PM CST | Tornado Warning | LIX | East Feliciana, Pointe Coupee, West Feliciana | 33 min |
| Feb 20, 6:48 PM CST | Tornado Warning | LIX | Washington | 27 min |
| Mar 16, 4:45 AM CDT | Tornado Warning | LIX | Washington | 30 min |
| Mar 16, 7:03 AM CDT | Tornado Warning | LIX | Saint Tammany | 27 min |
| Apr 4, 7:09 AM CDT | Tornado Warning | LCH | Evangeline, Rapides | 36 min |
| Apr 4, 7:16 AM CDT | Tornado Warning | LCH | Beauregard | 29 min |
| Apr 7, 12:42 AM CDT | Tornado Warning | LIX | Tangipahoa, Washington | 48 min |
| Apr 14, 2:49 PM CDT | Tornado Warning | LIX | Jefferson, Plaquemines | 41 min |
| Apr 28, 3:10 AM CDT | Tornado Warning | SHV | Bossier, Caddo, Webster | 50 min |
| Apr 28, 3:44 AM CDT | Tornado Warning | SHV | Caddo, De Soto | 46 min |
| May 28, 4:13 AM CDT | Tornado Warning | LIX | Ascension, Livingston, Saint James, Saint John the Baptist | 32 min |
| May 28, 5:29 AM CDT | Tornado Warning | LIX | Saint John the Baptist | 31 min |
| May 28, 8:50 AM CDT | Tornado Warning | LIX | Ascension, Saint James | 25 min |
| May 28, 10:02 AM CDT | Tornado Warning | LIX | Ascension | 28 min |
| May 28, 11:25 AM CDT | Tornado Warning | LIX | Livingston, Saint Helena, Tangipahoa | 20 min |
| May 28, 11:45 AM CDT | Tornado Warning | LIX | Tangipahoa | 30 min |
| Jun 8, 7:29 PM CDT | Tornado Warning | SHV | Ouachita, Union | 24 min |
| Jun 10, 10:20 AM CDT | Tornado Warning | LCH | Lafayette, Vermilion | 25 min |
| Jun 27, 10:10 AM CDT | Tornado Warning | LCH | Cameron | 50 min |
| Jun 27, 1:48 PM CDT | Tornado Warning | LCH | Jefferson Davis | 42 min |
| Jun 27, 2:22 PM CDT | Tornado Warning | LCH | Calcasieu, Jefferson Davis | 38 min |
| Jun 27, 2:52 PM CDT | Tornado Warning | LCH | Jefferson Davis | 38 min |
| Jul 24, 3:19 PM CDT | Tornado Warning | LCH | Cameron | 17 min |
| Oct 3, 1:40 AM CDT | Tornado Warning | LCH | Avoyelles | 35 min |
| Oct 13, 9:01 AM CDT | Tornado Warning | SHV | De Soto, Red River | 29 min |
| Oct 13, 11:25 AM CDT | Tornado Warning | SHV | Ouachita | 20 min |
| Oct 13, 11:30 AM CDT | Tornado Warning | JAN | Morehouse | 45 min |
| Oct 13, 12:07 PM CDT | Tornado Warning | JAN | Morehouse, West Carroll | 53 min |
| Oct 13, 12:09 PM CDT | Tornado Warning | JAN | Morehouse, Richland, West Carroll | 66 min |
| Oct 13, 12:41 PM CDT | Tornado Warning | JAN | East Carroll, West Carroll | 64 min |
| Oct 13, 12:42 PM CDT | Tornado Warning | JAN | East Carroll | 48 min |
| Oct 13, 4:45 PM CDT | Tornado Warning | LIX | Tangipahoa, Washington | 45 min |
| Oct 13, 5:05 PM CDT | Tornado Warning | LIX | Saint Charles | 10 min |
| Nov 16, 12:19 PM CST | Tornado Warning | LCH | Acadia | 41 min |
| Nov 16, 12:52 PM CST | Tornado Warning | LCH | Acadia, Saint Landry | 38 min |
| Nov 16, 8:06 PM CST | Tornado Warning | LIX | Livingston, Saint Helena, Tangipahoa | 24 min |
| Nov 16, 8:28 PM CST | Tornado Warning | LIX | Livingston, Saint Helena, Tangipahoa | 47 min |
| Nov 16, 9:15 PM CST | Tornado Warning | LIX | Tangipahoa, Washington | 30 min |
| Nov 16, 9:16 PM CST | Tornado Warning | LIX | East Baton Rouge, Livingston | 29 min |
| Nov 16, 9:43 PM CST | Tornado Warning | LIX | Washington | 47 min |
| Nov 16, 9:58 PM CST | Tornado Warning | LIX | Livingston, Tangipahoa | 32 min |
| Dec 23, 9:06 AM CST | Tornado Warning | LCH | Acadia, Lafayette, Vermilion | 24 min |
| Dec 23, 9:29 AM CST | Tornado Warning | LCH | Lafayette, Saint Martin, Vermilion | 46 min |
| Dec 23, 10:29 AM CST | Tornado Warning | LCH | Allen, Beauregard | 31 min |
| Dec 23, 10:33 AM CST | Tornado Warning | LIX | West Feliciana | 27 min |
| Dec 23, 10:52 AM CST | Tornado Warning | LIX | East Baton Rouge, East Feliciana, Saint Helena, West Feliciana | 23 min |
| Dec 23, 11:28 AM CST | Tornado Warning | LIX | East Feliciana | 47 min |
| Dec 23, 1:02 PM CST | Tornado Warning | LIX | Livingston, Saint Helena, Tangipahoa | 28 min |
| Dec 23, 1:22 PM CST | Tornado Warning | LIX | Tangipahoa, Washington | 23 min |
| Dec 23, 1:38 PM CST | Tornado Warning | LIX | Washington | 37 min |
| Dec 23, 3:42 PM CST | Tornado Warning | LIX | Ascension, Assumption, Saint James | 48 min |
| Dec 23, 4:23 PM CST | Tornado Warning | LIX | Saint John the Baptist | 22 min |
| Dec 27, 1:12 PM CST | Tornado Warning | SHV | De Soto, Sabine | 33 min |
| Dec 27, 3:40 PM CST | Tornado Warning | LCH | Rapides, Vernon | 35 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Tangipahoa Parish10
- Washington Parish8
- Livingston Parish7
- Saint Helena Parish5
- Ascension Parish4
- East Feliciana Parish3
- West Feliciana Parish3
- De Soto Parish3
- Saint James Parish3
- Saint John the Baptist Parish3
- Lafayette Parish3
- Vermilion Parish3
- Jefferson Davis Parish3
- Morehouse Parish3
- West Carroll Parish3
- Acadia Parish3
- Rapides Parish2
- Beauregard Parish2
- Caddo Parish2
- Ouachita Parish2
- Cameron Parish2
- East Carroll Parish2
- East Baton Rouge Parish2
- Pointe Coupee Parish1
- Saint Tammany Parish1
- Evangeline Parish1
- Jefferson Parish1
- Plaquemines Parish1
- Bossier Parish1
- Webster Parish1
- Union Parish1
- Calcasieu Parish1
- Avoyelles Parish1
- Red River Parish1
- Richland Parish1
- Saint Charles Parish1
- Saint Landry Parish1
- Saint Martin Parish1
- Allen Parish1
- Assumption Parish1
2 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20132015
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.