Mesoscale Discussions in Louisiana
3,522 mesoscale discussions since 1986. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Mesoscale Discussions
- 3,522
- Busiest year
- 2008195 mesoscale discussions
- Average year
- 147over 24 years on file
Over time
By year
Mesoscale discussions are counted from 2003.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Washington Parish844
- Bossier Parish829
- Madison Parish823
- Lincoln Parish815
- Tensas Parish815
- Richland Parish814
- West Carroll Parish810
- Union Parish808
- Bienville Parish806
- Franklin Parish806
- Jackson Parish802
- Webster Parish801
- Saint Helena Parish799
- Tangipahoa Parish799
- East Carroll Parish798
- Caddo Parish796
- Red River Parish795
- Morehouse Parish792
- Natchitoches Parish789
- LaSalle Parish787
- Claiborne Parish786
- De Soto Parish785
- Saint Tammany Parish782
- Ouachita Parish779
- Winn Parish777
- Grant Parish773
- Caldwell Parish765
- Concordia Parish763
- Catahoula Parish759
- East Feliciana Parish757
- Vernon Parish756
- East Baton Rouge Parish751
- Livingston Parish750
- Rapides Parish748
- Sabine Parish739
- Evangeline Parish736
- West Feliciana Parish733
- Ascension Parish727
- Beauregard Parish720
- Pointe Coupee Parish720
24 more counties
- Saint Landry Parish718
- Allen Parish715
- Avoyelles Parish715
- Saint John the Baptist Parish708
- West Baton Rouge Parish706
- Saint James Parish696
- Iberville Parish689
- Orleans Parish673
- Acadia Parish671
- Saint Martin Parish662
- Lafayette Parish660
- Jefferson Davis Parish652
- Calcasieu Parish646
- Saint Charles Parish638
- Assumption Parish628
- Saint Bernard Parish546
- Vermilion Parish537
- St. Mary Parish519
- Cameron Parish509
- Lafourche Parish503
- Jefferson Parish499
- Iberia Parish475
- Terrebonne Parish419
- Plaquemines Parish377
The latest mesoscale discussions
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 1:18 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Caldwell and 31 more | 3 hr |
| Sep 1, 12:38 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Evangeline and 9 more | 3 hr |
| Aug 24, 2:57 PM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, Iberville, Jefferson, Lafourche and 12 more | 2 hr |
| Aug 24, 9:12 AM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, Catahoula, Concordia, East Baton Rouge, East Feliciana and 23 more | 3 hr |
| Aug 23, 1:12 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 32 more | 2 hr |
| Aug 22, 2:46 PM CDT | Mesoscale Discussion | SPC | De Soto, Sabine | 119 min |
| Aug 21, 7:49 PM CDT | Mesoscale Discussion | SPC | Acadia, Assumption, Calcasieu, Cameron, Iberia, Jefferson and 8 more | 86 min |
| Aug 21, 3:33 PM CDT | Mesoscale Discussion | SPC | Ascension, Avoyelles, Catahoula, Concordia, East Baton Rouge, East Feliciana and 9 more | 117 min |
| Aug 21, 1:08 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 32 more | 2 hr |
| Aug 18, 3:20 PM CDT | Mesoscale Discussion | SPC | Washington | 115 min |
| Jul 12, 12:52 PM CDT | Mesoscale Discussion | SPC | East Carroll, Madison, Tensas, Washington | 113 min |
| Jul 12, 12:12 PM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 2 hr |
Nearby
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.