Alert archive / Louisiana / Mesoscale Discussions / 2021
Mesoscale Discussions in Louisiana, December 2021
17 mesoscale discussions in December 2021. 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 in December 2021. Tap one for its archive.
- Mesoscale Discussions
- 17
- Busiest day
- December 29, 20215 mesoscale discussions
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Dec 6, 7:17 AM CST | Mesoscale Discussion | SPC | Avoyelles, Beauregard, Caldwell, Catahoula, Concordia, East Carroll and 14 more | 118 min |
| Dec 6, 10:06 AM CST | Mesoscale Discussion | SPC | Catahoula, Concordia, LaSalle | 114 min |
| Dec 6, 1:08 PM CST | Mesoscale Discussion | SPC | Washington | 2 hr |
| Dec 9, 5:03 PM CST | Mesoscale Discussion | SPC | Ascension, Livingston, Orleans, Saint Charles, Saint Helena, Saint James and 4 more | 87 min |
| Dec 10, 10:00 PM CST | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 16 more | 90 min |
| Dec 11, 1:36 AM CST | Mesoscale Discussion | SPC | Beauregard, Caldwell, De Soto, Grant, LaSalle, Natchitoches and 4 more | 114 min |
| Dec 11, 2:00 AM CST | Mesoscale Discussion | SPC | Bienville, Bossier, Claiborne, Lincoln, Morehouse, Ouachita and 3 more | 90 min |
| Dec 11, 4:02 AM CST | Mesoscale Discussion | SPC | Allen, Avoyelles, Beauregard, Calcasieu, Caldwell, Catahoula and 9 more | 118 min |
| Dec 16, 2:08 PM CST | Mesoscale Discussion | SPC | Bossier, Caddo, Claiborne, Webster | 3 hr |
| Dec 18, 9:02 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Beauregard, Calcasieu, Cameron, Jefferson Davis and 1 more | 118 min |
| Dec 18, 12:50 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 6 more | 115 min |
| Dec 28, 1:18 PM CST | Mesoscale Discussion | SPC | Ascension, East Baton Rouge, East Feliciana, Livingston, Orleans, Pointe Coupee and 7 more | 2 hr |
| Dec 29, 9:25 AM CST | Mesoscale Discussion | SPC | Bossier, Caddo, Claiborne, Lincoln, Union, Webster | 2 hr |
| Dec 29, 10:44 AM CST | Mesoscale Discussion | SPC | East Carroll, Morehouse, West Carroll | 2 hr |
| Dec 29, 2:49 PM CST | Mesoscale Discussion | SPC | Washington | 86 min |
| Dec 29, 3:41 PM CST | Mesoscale Discussion | SPC | Morehouse, West Carroll | 64 min |
| Dec 29, 4:44 PM CST | Mesoscale Discussion | SPC | Bossier, Caddo, Claiborne, Webster | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Beauregard Parish5
- LaSalle Parish5
- West Carroll Parish5
- Bossier Parish5
- Claiborne Parish5
- Webster Parish5
- Caldwell Parish4
- Natchitoches Parish4
- Vernon Parish4
- Winn Parish4
- Washington Parish4
- Caddo Parish4
- Morehouse Parish4
- Catahoula Parish3
- Concordia Parish3
- East Carroll Parish3
- Grant Parish3
- Ouachita Parish3
- Rapides Parish3
- Sabine Parish3
- Lincoln Parish3
- Union Parish3
- Allen Parish3
- Calcasieu Parish3
- Avoyelles Parish2
- Franklin Parish2
- Jackson Parish2
- Madison Parish2
- Richland Parish2
- Tensas Parish2
- Ascension Parish2
- Livingston Parish2
- Orleans Parish2
- Saint Helena Parish2
- Saint John the Baptist Parish2
- Saint Tammany Parish2
- Tangipahoa Parish2
- Bienville Parish2
- De Soto Parish2
- Red River Parish2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.