Alert archive / Louisiana / 2009
Weather alerts in Louisiana, August 2009
132 weather alerts in August 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in August 2009. Tap one for its archive.
- Alerts
- 132
- Warnings
- 96
- Watches
- 4
- Advisories
- 26
- Busiest day
- August 6, 200937 alerts
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 |
|---|---|---|---|---|
| Aug 1, 1:09 PM CDT | Special Marine Warning | LIX | 36 min | |
| Aug 1, 1:19 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo, Webster | 41 min |
| Aug 1, 1:25 PM CDT | Severe Thunderstorm Warning | LIX | Orleans | 35 min |
| Aug 1, 1:46 PM CDT | Special Marine Warning | LIX | 29 min | |
| Aug 1, 1:50 PM CDT | Flash Flood Warning | SHV | Bossier, Caddo | 3 hr |
| Aug 1, 2:03 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, Claiborne, Webster | 57 min |
| Aug 1, 5:15 PM CDT | Areal Flood Advisory | SHV | Bienville, Bossier, Caddo, Claiborne, De Soto, Red River and 1 more | 60 min |
| Aug 3, 7:29 PM CDT | Special Marine Warning | LIX | 31 min | |
| Aug 5, 7:57 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caldwell, Catahoula, Claiborne, Concordia and 12 more | 93 min |
| Aug 5, 2:36 PM CDT | Special Marine Warning | LIX | 84 min | |
| Aug 5, 7:37 PM CDT | Special Marine Warning | LIX | 83 min | |
| Aug 5, 8:30 PM CDT | Special Marine Warning | LIX | 90 min | |
| Aug 5, 8:56 PM CDT | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 49 min |
| Aug 5, 9:07 PM CDT | Special Marine Warning | LIX | 53 min | |
| Aug 5, 9:30 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Plaquemines | 45 min |
| Aug 5, 9:40 PM CDT | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 50 min |
| Aug 5, 9:52 PM CDT | Special Marine Warning | LIX | 83 min | |
| Aug 5, 10:22 PM CDT | Severe Thunderstorm Warning | LIX | Plaquemines | 53 min |
| Aug 5, 11:08 PM CDT | Special Marine Warning | LIX | 97 min | |
| Aug 6, 12:42 AM CDT | Special Marine Warning | LIX | 93 min | |
| Aug 6, 2:16 AM CDT | Special Marine Warning | LIX | 89 min | |
| Aug 6, 3:03 AM CDT | Special Marine Warning | LCH | 117 min | |
| Aug 6, 7:12 AM CDT | Severe Thunderstorm Warning | JAN | Madison | 63 min |
| Aug 6, 7:57 AM CDT | Severe Thunderstorm Warning | JAN | Madison, Tensas | 48 min |
| Aug 6, 8:07 AM CDT | Flash Flood Warning | JAN | East Carroll, Madison, Tensas | 3 hr |
| Aug 6, 8:55 AM CDT | Severe Thunderstorm Warning | JAN | Tensas | 65 min |
| Aug 6, 9:25 AM CDT | Flash Flood Warning | JAN | East Carroll, Franklin, Madison, Morehouse, Richland, West Carroll | 2 hr |
| Aug 6, 9:26 AM CDT | Flash Flood Warning | JAN | Tensas | 90 min |
| Aug 6, 9:36 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Franklin, Tensas | 39 min |
| Aug 6, 9:50 AM CDT | Severe Thunderstorm Warning | JAN | Franklin | 40 min |
| Aug 6, 10:11 AM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Caldwell, Catahoula and 22 more | 94 min |
| Aug 6, 10:14 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula | 46 min |
| Aug 6, 10:15 AM CDT | Severe Thunderstorm Warning | JAN | Richland | 45 min |
| Aug 6, 10:42 AM CDT | Flash Flood Warning | JAN | Catahoula | 2 hr |
| Aug 6, 10:51 AM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Ouachita | 54 min |
| Aug 6, 11:32 AM CDT | Severe Thunderstorm Warning | SHV | LaSalle | 58 min |
| Aug 6, 11:48 AM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Jackson, Winn | 57 min |
| Aug 6, 12:25 PM CDT | Severe Thunderstorm Warning | SHV | Grant, Winn | 35 min |
| Aug 6, 12:49 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Beauregard, Bienville, Bossier, Caddo, Calcasieu and 14 more | 7 hr |
| Aug 6, 1:08 PM CDT | Severe Thunderstorm Warning | SHV | Grant, Natchitoches, Winn | 52 min |
| Aug 6, 1:26 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches | 64 min |
| Aug 6, 2:13 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, Red River, Webster | 62 min |
| Aug 6, 3:02 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo, De Soto, Red River | 58 min |
| Aug 6, 3:03 PM CDT | Mesoscale Discussion | SPC | Bossier, Caddo, De Soto | 87 min |
| Aug 6, 3:45 PM CDT | Severe Thunderstorm Warning | SHV | De Soto, Sabine | 60 min |
| Aug 6, 5:10 PM CDT | Special Marine Warning | LIX | 50 min | |
| Aug 6, 5:59 PM CDT | Special Marine Warning | LIX | 31 min | |
| Aug 8, 10:55 AM CDT | Areal Flood Advisory | LIX | Jefferson | 110 min |
| Aug 8, 11:06 AM CDT | Special Marine Warning | LIX | 54 min | |
| Aug 8, 12:05 PM CDT | Areal Flood Advisory | LIX | Saint Tammany | 3 hr |
| Aug 8, 2:10 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Evangeline and 8 more | 65 min |
| Aug 8, 3:45 PM CDT | Severe Thunderstorm Warning | LIX | Assumption, Iberville, Saint James | 33 min |
| Aug 8, 4:20 PM CDT | Areal Flood Advisory | LIX | Assumption, Iberville | 115 min |
| Aug 8, 4:23 PM CDT | Areal Flood Advisory | LIX | East Baton Rouge | 66 min |
| Aug 9, 10:08 AM CDT | Tornado Warning | LIX | Plaquemines | 22 min |
| Aug 9, 12:10 PM CDT | Areal Flood Advisory | LIX | Jefferson | 47 min |
| Aug 9, 4:51 PM CDT | Areal Flood Advisory | LIX | Assumption, Terrebonne | 114 min |
| Aug 9, 4:56 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 2 hr |
| Aug 9, 5:40 PM CDT | Special Marine Warning | LIX | 39 min | |
| Aug 10, 1:07 PM CDT | Areal Flood Advisory | LIX | Jefferson | 113 min |
| Aug 10, 1:23 PM CDT | Flash Flood Warning | LIX | Jefferson | 65 min |
| Aug 10, 2:46 PM CDT | Areal Flood Advisory | LCH | Iberia, St. Mary | 3 hr |
| Aug 10, 3:47 PM CDT | Severe Thunderstorm Warning | LCH | Acadia | 28 min |
| Aug 10, 4:59 PM CDT | Severe Thunderstorm Warning | LCH | Allen | 31 min |
| Aug 11, 1:22 PM CDT | Severe Thunderstorm Warning | LIX | Washington | 53 min |
| Aug 11, 2:36 PM CDT | Areal Flood Advisory | LIX | Saint Tammany | 81 min |
| Aug 11, 3:47 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Saint Charles, Saint James, Saint John the Baptist | 58 min |
| Aug 11, 4:49 PM CDT | Areal Flood Advisory | LIX | Jefferson, Saint Charles | 56 min |
| Aug 11, 5:13 PM CDT | Areal Flood Advisory | LIX | Assumption, Iberville, Lafourche, Saint James | 62 min |
| Aug 12, 4:49 AM CDT | Special Marine Warning | LIX | 56 min | |
| Aug 12, 8:03 AM CDT | Special Marine Warning | LCH | 27 min | |
| Aug 12, 8:46 AM CDT | Special Marine Warning | LIX | 44 min | |
| Aug 12, 9:14 AM CDT | Special Marine Warning | LIX | 61 min | |
| Aug 12, 9:53 AM CDT | Special Marine Warning | LIX | 52 min | |
| Aug 12, 11:21 AM CDT | Special Marine Warning | LIX | 54 min | |
| Aug 12, 12:28 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Saint Charles | 62 min |
| Aug 12, 1:00 PM CDT | Areal Flood Advisory | LIX | Jefferson, Plaquemines | 2 hr |
| Aug 12, 1:08 PM CDT | Special Marine Warning | LIX | 67 min | |
| Aug 12, 1:50 PM CDT | Severe Thunderstorm Warning | LIX | Assumption, Saint James | 40 min |
| Aug 12, 3:06 PM CDT | Special Marine Warning | LIX | 54 min | |
| Aug 14, 4:46 AM CDT | Special Marine Warning | LIX | 29 min | |
| Aug 17, 1:39 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans | 51 min |
| Aug 17, 1:50 PM CDT | Areal Flood Advisory | LIX | Lafourche, Saint James | 115 min |
| Aug 17, 2:04 PM CDT | Special Marine Warning | LIX | 56 min | |
| Aug 17, 2:17 PM CDT | Areal Flood Advisory | LIX | Saint Tammany | 118 min |
| Aug 17, 2:19 PM CDT | Areal Flood Advisory | LIX | Ascension, Lafourche, Saint Charles, Saint James, Saint John the Baptist | 116 min |
| Aug 17, 3:07 PM CDT | Areal Flood Advisory | LIX | Ascension, Saint Charles, Saint John the Baptist | 53 min |
| Aug 17, 3:10 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines | 65 min |
| Aug 17, 3:33 PM CDT | Areal Flood Advisory | LIX | Livingston, Tangipahoa | 57 min |
| Aug 18, 7:03 PM CDT | Special Marine Warning | LIX | 42 min | |
| Aug 19, 5:18 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Red River | 42 min |
| Aug 20, 2:32 PM CDT | Mesoscale Discussion | SPC | Bossier, Caddo, Webster | 88 min |
| Aug 20, 3:08 PM CDT | Severe Thunderstorm Watch | SPC | Bossier, Caddo | 7 hr |
| Aug 20, 3:09 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Madison, Richland, West Carroll | 36 min |
| Aug 20, 3:24 PM CDT | Severe Thunderstorm Warning | JAN | Franklin, Madison, Morehouse, Richland, West Carroll | 36 min |
| Aug 20, 3:30 PM CDT | Flash Flood Warning | JAN | East Carroll, Madison, Richland, West Carroll | 2 hr |
| Aug 20, 4:19 PM CDT | Flash Flood Warning | JAN | Franklin, Madison, Richland, Tensas | 95 min |
| Aug 20, 4:56 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 49 min |
| Aug 20, 5:19 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 26 min |
| Aug 20, 5:39 PM CDT | Flash Flood Warning | LCH | Vermilion | 66 min |
| Aug 20, 5:53 PM CDT | Special Marine Warning | LCH | 52 min | |
| Aug 20, 9:57 PM CDT | Severe Thunderstorm Watch | SPC | Bossier, Caddo, Claiborne, Lincoln, Ouachita, Union and 1 more | 6 hr |
| Aug 21, 1:23 PM CDT | Special Marine Warning | LIX | 52 min | |
| Aug 21, 1:40 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Saint Bernard, Saint Charles, Saint John the Baptist | 110 min |
| Aug 21, 1:43 PM CDT | Special Marine Warning | LIX | 62 min | |
| Aug 21, 1:58 PM CDT | Flash Flood Warning | LCH | St. Mary | 2 hr |
| Aug 21, 2:48 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson Davis | 27 min |
| Aug 21, 6:24 PM CDT | Severe Thunderstorm Warning | LIX | Washington | 51 min |
| Aug 21, 7:36 PM CDT | Severe Thunderstorm Warning | LIX | Washington | 54 min |
| Aug 25, 9:15 AM CDT | Special Marine Warning | LCH | 60 min | |
| Aug 26, 10:24 AM CDT | Severe Thunderstorm Warning | LCH | Vernon | 36 min |
| Aug 26, 10:47 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Beauregard, Calcasieu, Cameron, Jefferson Davis, Vernon | 7 hr |
| Aug 26, 12:54 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard, Calcasieu | 51 min |
| Aug 26, 1:16 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 44 min |
| Aug 26, 1:25 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard | 35 min |
| Aug 26, 1:37 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Jefferson Davis | 38 min |
| Aug 26, 1:47 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Rapides, Vernon | 43 min |
| Aug 26, 1:54 PM CDT | Mesoscale Discussion | SPC | Beauregard, Calcasieu | 96 min |
| Aug 26, 2:44 PM CDT | Severe Thunderstorm Warning | LCH | Evangeline | 31 min |
| Aug 26, 2:46 PM CDT | Severe Thunderstorm Warning | LCH | Rapides | 29 min |
| Aug 26, 3:34 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 26 min |
| Aug 26, 4:05 PM CDT | Severe Thunderstorm Warning | LCH | Vernon | 40 min |
| Aug 27, 6:57 AM CDT | Special Marine Warning | LIX | 63 min | |
| Aug 27, 7:27 AM CDT | Special Marine Warning | LIX | 63 min | |
| Aug 29, 6:18 PM CDT | Areal Flood Advisory | LCH | Calcasieu | 3 hr |
| Aug 29, 9:50 PM CDT | Flash Flood Warning | LIX | Pointe Coupee, West Feliciana | 115 min |
| Aug 30, 4:05 AM CDT | Special Marine Warning | LCH | 55 min | |
| Aug 30, 6:14 AM CDT | Special Marine Warning | LIX | 61 min | |
| Aug 30, 4:54 PM CDT | Areal Flood Advisory | LIX | Plaquemines, Saint Bernard | 111 min |
| Aug 30, 5:53 PM CDT | Special Marine Warning | LCH | 22 min | |
| Aug 30, 8:10 PM CDT | Areal Flood Advisory | LIX | Jefferson, Saint Charles, Saint John the Baptist | 2 hr |
| Aug 30, 9:16 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Charles | 119 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 48 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 6 |
| Flooding | |
| Flash Flood Warning | 11 |
| Areal Flood Advisory | 26 |
| Marine | |
| Special Marine Warning | 36 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jefferson Parish14
- Bossier Parish12
- Caddo Parish11
- Madison Parish10
- Plaquemines Parish10
- Allen Parish9
- Webster Parish8
- Richland Parish8
- Tensas Parish8
- Saint Charles Parish8
- Franklin Parish7
- Beauregard Parish7
- Calcasieu Parish7
- Orleans Parish6
- Bienville Parish6
- Grant Parish6
- Winn Parish6
- Jefferson Davis Parish6
- Sabine Parish6
- Vernon Parish6
- Saint James Parish6
- Claiborne Parish5
- De Soto Parish5
- Red River Parish5
- Catahoula Parish5
- Saint Bernard Parish5
- East Carroll Parish5
- West Carroll Parish5
- Rapides Parish5
- Natchitoches Parish5
- Assumption Parish5
- Saint John the Baptist Parish5
- Caldwell Parish4
- Jackson Parish4
- LaSalle Parish4
- Lincoln Parish4
- Ouachita Parish4
- Lafourche Parish4
- Union Parish3
- Morehouse Parish3
20 more counties
- Acadia Parish3
- Evangeline Parish3
- Saint Tammany Parish3
- Iberville Parish3
- Washington Parish3
- Ascension Parish3
- Concordia Parish2
- Avoyelles Parish2
- Pointe Coupee Parish2
- Saint Landry Parish2
- West Feliciana Parish2
- Cameron Parish2
- St. Mary Parish2
- Lafayette Parish1
- East Baton Rouge Parish1
- Terrebonne Parish1
- Iberia Parish1
- Livingston Parish1
- Tangipahoa Parish1
- Vermilion Parish1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.