Alert archive / Louisiana / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 114
The Storm Prediction Center issued this severe thunderstorm watch at Apr 7, 2003, 3:40 PM CDT for 5 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2003, 3:40 PM CDT (20:40 UTC)
- Expired
- Apr 7, 2003, 9:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Baldwin County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, Acadia Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, East Baton Rouge Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Jefferson Parish, LA, Lafayette Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Saint Tammany Parish, LA, St. Mary Parish, LA, Tangipahoa Parish, LA, Vermilion Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, George County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS, Stone County, MS, Chambers County, TX, Galveston County, TX, Jefferson County, TX, Liberty County, TX, Orange County, TX
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 3:42 PM CDT | Severe Thunderstorm Warning | MOB | Covington | 48 min |
| Apr 7, 3:55 PM CDT | Severe Thunderstorm Warning | LIX | Lafourche, Saint James, Saint John the Baptist | 65 min |
| Apr 7, 4:12 PM CDT | Flash Flood Warning | MOB | Stone | 108 min |
| Apr 7, 4:16 PM CDT | Severe Thunderstorm Warning | LIX | Jackson | 44 min |
| Apr 7, 4:34 PM CDT | Severe Thunderstorm Warning | LCH | St. Mary | 26 min |
| Apr 7, 4:35 PM CDT | Severe Thunderstorm Warning | LIX | Saint Charles | 40 min |
| Apr 7, 4:43 PM CDT | Severe Thunderstorm Warning | MOB | George | 17 min |
| Apr 7, 4:43 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 32 min |
| Apr 7, 4:48 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 57 min |
| Apr 7, 4:52 PM CDT | Severe Thunderstorm Warning | LIX | Assumption, Iberville | 38 min |
| Apr 7, 5:03 PM CDT | Severe Thunderstorm Warning | LCH | Vermilion | 27 min |
| Apr 7, 5:14 PM CDT | Severe Thunderstorm Warning | LCH | Iberia, Saint Martin | 46 min |
| Apr 7, 5:23 PM CDT | Flash Flood Warning | MOB | Baldwin | 3 hr |
| Apr 7, 5:34 PM CDT | Severe Thunderstorm Warning | LCH | Cameron | 26 min |
| Apr 7, 8:42 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 33 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.7 hours before the alert went out and 149 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1791 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- -0.6
- Supercell composite
- -2.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 8:13 PM CDT | Mesoscale Discussion | SPC | Bibb, Chilton, Choctaw, Dallas, Fayette, Greene and 8 more | 2 hr |
| Apr 6, 9:48 PM CDT | Mesoscale Discussion | SPC | Autauga, Chilton, Choctaw, Clarke, Dallas, Hale and 6 more | 87 min |
| Apr 6, 10:15 PM CDT | Tornado Watch | SPC | Autauga, Butler, Choctaw, Clarke, Conecuh, Covington and 10 more | 5 hr |
| Apr 6, 11:39 PM CDT | Mesoscale Discussion | SPC | Autauga, Butler, Choctaw, Clarke, Conecuh, Covington and 11 more | 2 hr |
| Apr 7, 1:51 AM CDT | Mesoscale Discussion | SPC | Bullock, Butler, Lowndes, Macon, Montgomery | 54 min |
| Apr 7, 2:55 AM CDT | Tornado Watch | SPC | Autauga, Barbour, Bullock, Chilton, Choctaw, Dallas and 13 more | 4 hr |
| Apr 7, 4:49 AM CDT | Mesoscale Discussion | SPC | Autauga, Chambers, Chilton, Coosa, Dallas, Elmore and 11 more | 3 hr |
| Apr 7, 9:11 AM CDT | Mesoscale Discussion | SPC | Barbour, Coffee, Conecuh, Covington, Crenshaw, Dale and 6 more | 3 hr |
| Apr 7, 9:40 AM CDT | Tornado Watch | SPC | Barbour, Bullock, Macon, Pike, Russell | 5 hr |
| Apr 7, 11:25 AM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Clarke, Coffee, Conecuh, Covington and 6 more | 3 hr |
| Apr 7, 12:07 PM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Clarke, Coffee, Conecuh, Covington and 6 more | 113 min |
| Apr 7, 12:22 PM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Clarke, Coffee, Conecuh, Covington and 6 more | 113 min |
| Apr 7, 5:58 PM CDT | Mesoscale Discussion | SPC | Baldwin, Escambia, Mobile | 2 hr |
| Apr 7, 9:42 AM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Beauregard, Calcasieu and 16 more | 3 hr |
| Apr 7, 10:05 AM CDT | Severe Thunderstorm Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 26 more | 6 hr |
| Apr 7, 11:02 AM CDT | Mesoscale Discussion | SPC | Acadia, Ascension, Cameron, East Baton Rouge, Iberville, Lafayette and 8 more | 3 hr |
| Apr 7, 2:13 PM CDT | Mesoscale Discussion | SPC | Acadia, Ascension, Assumption, Calcasieu, Cameron, East Baton Rouge and 20 more | 3 hr |
| Apr 7, 2:36 PM CDT | Mesoscale Discussion | SPC | Acadia, Ascension, Assumption, Calcasieu, Cameron, East Baton Rouge and 20 more | 114 min |
| Apr 7, 12:24 PM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bastrop, Bee, Bexar, Brazoria and 28 more | 66 min |
| Apr 7, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Austin, Bee, Bexar, Brazoria, Caldwell and 23 more | 5 hr |
| Apr 7, 3:36 PM CDT | Mesoscale Discussion | SPC | Edwards, Kinney, Maverick, Real, Uvalde, Val Verde | 114 min |
| Apr 7, 4:35 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bee, Bexar, Blanco, Caldwell and 22 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Louisiana, 2003Severe Thunderstorm Watches in Mississippi, 2003Severe Thunderstorm Watches in Texas, 2003Every severe thunderstorm watch in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.