Alert archive / Mississippi / Tornado Watches in 2005

Tornado Watch 130

April 6, 20056 counties in Alabama; 33 parishes in Louisiana; 38 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Apr 6, 2005, 7:00 AM CDT for 6 counties in Alabama; 33 parishes in Louisiana; 38 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 6, 2005, 7:00 AM CDT (12:00 UTC)
Expired
Apr 6, 2005, 1:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 77 counties

Choctaw County, AL, Greene County, AL, Mobile County, AL, Pickens County, AL, Sumter County, AL, Washington County, AL, Acadia Parish, LA, Allen Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, Cameron Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Pointe Coupee Parish, LA, Rapides 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, Vernon Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Hinds County, MS, Jackson County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS, Wilkinson County, MS

Warnings issued inside it

58 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 6, 7:06 AM CDTSevere Thunderstorm WarningLCHCameron54 min
Apr 6, 7:41 AM CDTTornado Warning EmergencyJANRankin, Scott64 min
Apr 6, 7:54 AM CDTTornado WarningLIXTangipahoa66 min
Apr 6, 8:01 AM CDTSevere Thunderstorm WarningJANSimpson44 min
Apr 6, 8:02 AM CDTTornado WarningLIXLivingston, Saint Helena58 min
Apr 6, 8:12 AM CDTTornado WarningJANSimpson48 min
Apr 6, 8:13 AM CDTSevere Thunderstorm WarningLIXPointe Coupee47 min
Apr 6, 8:19 AM CDTTornado WarningJANJefferson Davis, Lawrence, Marion56 min
Apr 6, 8:21 AM CDTTornado WarningJANRankin39 min
Apr 6, 8:24 AM CDTTornado WarningLIXAscension, Livingston, Saint James36 min
Apr 6, 8:32 AM CDTTornado WarningJANRankin, Scott, Smith58 min
Apr 6, 8:35 AM CDTSevere Thunderstorm WarningLIXAssumption, Lafourche, Terrebonne25 min
Apr 6, 8:41 AM CDTTornado WarningJANNeshoba64 min
Apr 6, 8:53 AM CDTTornado WarningLIXWalthall22 min
Apr 6, 8:55 AM CDTSevere Thunderstorm WarningLIXWilkinson50 min
Apr 6, 8:58 AM CDTTornado WarningLIXTangipahoa, Washington32 min
Apr 6, 9:02 AM CDTTornado WarningJANSimpson43 min
Apr 6, 9:03 AM CDTTornado WarningLIXLivingston, Tangipahoa27 min
Apr 6, 9:10 AM CDTTornado WarningJANCovington, Jefferson Davis, Lawrence, Marion65 min
Apr 6, 9:16 AM CDTSevere Thunderstorm WarningLCHEvangeline, Saint Landry29 min
Apr 6, 9:25 AM CDTTornado WarningLIXAmite, Pike35 min
Apr 6, 9:27 AM CDTTornado WarningJANScott, Smith63 min
Apr 6, 9:30 AM CDTTornado WarningJANLawrence, Lincoln60 min
Apr 6, 9:31 AM CDTFlash Flood WarningJANSimpson, Smith4 hr
Apr 6, 9:32 AM CDTTornado WarningLIXTangipahoa, Washington28 min
Apr 6, 9:35 AM CDTSevere Thunderstorm WarningLCHAvoyelles25 min
Apr 6, 9:40 AM CDTTornado WarningJANJefferson Davis, Lawrence, Marion50 min
Apr 6, 9:41 AM CDTTornado WarningLIXJefferson, Saint Charles34 min
Apr 6, 9:48 AM CDTTornado WarningLIXLafourche, Saint Charles27 min
Apr 6, 9:51 AM CDTSevere Thunderstorm WarningLIXOrleans39 min
Apr 6, 9:53 AM CDTTornado WarningLIXOrleans, Saint Bernard37 min
Apr 6, 9:58 AM CDTTornado WarningJANSimpson, Smith62 min
Apr 6, 10:02 AM CDTSevere Thunderstorm WarningJANCopiah, Hinds, Rankin, Simpson58 min
Apr 6, 10:05 AM CDTTornado WarningLIXSaint Tammany25 min
Apr 6, 10:14 AM CDTTornado WarningJANCovington, Jefferson Davis46 min
Apr 6, 10:22 AM CDTTornado WarningJANJefferson Davis, Lawrence68 min
Apr 6, 10:25 AM CDTTornado WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard35 min
Apr 6, 10:27 AM CDTSevere Thunderstorm WarningJANConcordia63 min
Apr 6, 10:27 AM CDTSevere Thunderstorm WarningLIXSaint Tammany63 min
Apr 6, 10:28 AM CDTSevere Thunderstorm WarningJANMadison, Rankin47 min
Apr 6, 10:31 AM CDTTornado WarningJANLamar, Marion59 min
Apr 6, 10:38 AM CDTTornado WarningJANJasper, Newton67 min
Apr 6, 10:55 AM CDTTornado WarningJANCovington, Jones, Smith65 min
Apr 6, 10:58 AM CDTTornado WarningJANLamar, Marion62 min
Apr 6, 11:05 AM CDTTornado WarningJANCovington, Jefferson Davis, Simpson25 min
Apr 6, 11:21 AM CDTTornado WarningJANForrest54 min
Apr 6, 11:31 AM CDTTornado WarningLIXHancock, Harrison29 min
Apr 6, 11:37 AM CDTTornado WarningJANLauderdale, Newton53 min
Apr 6, 11:39 AM CDTTornado WarningJANJasper66 min
Apr 6, 11:43 AM CDTTornado WarningJANJones62 min
Apr 6, 11:58 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson62 min
Apr 6, 12:02 PM CDTTornado WarningJANClarke58 min
Apr 6, 12:21 PM CDTTornado WarningJANKemper, Lauderdale54 min
Apr 6, 12:26 PM CDTTornado WarningLIXHarrison, Jackson34 min
Apr 6, 12:45 PM CDTSevere Thunderstorm WarningLCHAvoyelles15 min
Apr 6, 12:50 PM CDTSevere Thunderstorm WarningJANConcordia40 min
Apr 6, 12:50 PM CDTSevere Thunderstorm WarningLIXWilkinson25 min
Apr 6, 12:56 PM CDTTornado WarningJANClarke64 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.0 hours before the alert went out and 156 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2005-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1199 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2005-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1199 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
279 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 061201
SEL0  
SPC WW 061201
ALZ000-LAZ000-MSZ000-CWZ000-061800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 130
NWS STORM PREDICTION CENTER NORMAN OK
700 AM CDT WED APR 6 2005

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTHWEST ALABAMA
       SOUTHERN AND EASTERN LOUISIANA
       SOUTHERN...CENTRAL AND EASTERN MISSISSIPPI
       COASTAL WATERS

EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 700 AM UNTIL
100 PM CDT.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 65 MILES WEST OF INTRACOASTAL CITY
LOUISIANA TO 50 MILES EAST SOUTHEAST OF MERIDIAN MISSISSIPPI.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 129. WATCH NUMBER 129 WILL NOT BE IN EFFECT AFTER 700
AM CDT. 

DISCUSSION...THREAT FOR ISOLATED TORNADOES EXPECTED TO PERSIST
THROUGH THE MORNING AS BOUNDARY LAYER CONTINUES TO RECOVER AHEAD OF
EWD-MOVING SQUALL LINE WITH EMBEDDED SUPERCELLS.  LOW LEVEL
DIRECTIONAL SHEAR WILL CONTINUE TO BE MAXIMIZED INVOF DIFFUSE WARM
FRONT ATTM EXTENDING FROM HEZ/JAN SSE TO NEAR BVE...WHERE 0-1 KM SRH
IS ON THE ORDER OF 200 M2/S2.  ISOLATED STRONG CELLS/SUPERCELLS
EXPECTED TO SHIFT NEWD FROM THE NWRN GULF INTO SRN LA.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 23030.


...CORFIDI

310,0931 332,0875 304,0875 282,0931

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 9:29 AM CDTMesoscale DiscussionSPCChoctaw, Greene, Mobile, Pickens, Sumter, Washington2 hr
Apr 6, 10:50 AM CDTMesoscale DiscussionSPCBaldwin, Butler, Clarke, Coffee, Conecuh, Covington and 9 more55 min
Apr 6, 11:05 AM CDTTornado WatchSPCAutauga, Baldwin, Bullock, Butler, Choctaw, Clarke and 20 more8 hr
Apr 6, 1:21 PM CDTMesoscale DiscussionSPCAutauga, Baldwin, Bullock, Butler, Choctaw, Clarke and 20 more84 min
Apr 6, 3:43 PM CDTMesoscale DiscussionSPCAutauga, Baldwin, Bullock, Butler, Choctaw, Clarke and 20 more92 min
Apr 6, 4:53 PM CDTMesoscale DiscussionSPCBibb, Blount, Chilton, Colbert, Coosa, Cullman and 19 more37 min
Apr 6, 5:20 PM CDTTornado WatchSPCBibb, Chilton, Cullman, Fayette, Greene, Hale and 8 more8 hr
Apr 6, 6:01 PM CDTMesoscale DiscussionSPCAutauga, Baldwin, Bullock, Butler, Choctaw, Clarke and 21 more59 min
Apr 6, 6:45 PM CDTTornado WatchSPCAutauga, Bibb, Butler, Chilton, Choctaw, Clarke and 20 more6 hr
Apr 5, 8:25 PM CDTSevere Thunderstorm WatchSPCBossier, Caddo8 hr
Apr 5, 10:40 PM CDTMesoscale DiscussionSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 50 more2 hr
Apr 6, 2:55 AM CDTTornado WatchSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Calcasieu and 36 more7 hr
Apr 6, 5:45 AM CDTMesoscale DiscussionSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Calcasieu and 36 more90 min
Apr 6, 7:46 AM CDTMesoscale DiscussionSPCBienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 20 more119 min
Apr 6, 10:40 AM CDTMesoscale DiscussionSPCCaldwell, Catahoula, East Carroll, Franklin, Grant, Jackson and 11 more65 min
Apr 6, 11:05 AM CDTTornado WatchSPCAscension, Assumption, Concordia, East Baton Rouge, East Carroll, East Feliciana and 22 more8 hr
Apr 6, 1:55 PM CDTTornado WatchSPCBenton, Calhoun, Chickasaw, Coahoma, DeSoto, Lafayette and 12 more7 hr
Apr 6, 3:18 PM CDTMesoscale DiscussionSPCBenton, Calhoun, Chickasaw, Coahoma, DeSoto, Lafayette and 12 more87 min
Apr 6, 5:44 PM CDTMesoscale DiscussionSPCBenton, Calhoun, Chickasaw, Coahoma, DeSoto, Lafayette and 12 more91 min

Nearby

Tornado Watches in Mississippi, 2005Tornado Watches in Louisiana, 2005Tornado Watches in Alabama, 2005Every tornado watch in 2005

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.