Alert archive / Mississippi / Tornado Watches in 2003
Tornado Watch 108
The Storm Prediction Center issued this tornado watch at Apr 6, 2003, 6:50 PM CDT for 18 counties in Alabama; 17 parishes in Louisiana; 35 counties in Mississippi. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2003, 6:50 PM CDT (23:50 UTC)
- Expired
- Apr 7, 2003, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 70 counties
Autauga County, AL, Bibb County, AL, Chilton County, AL, Choctaw County, AL, Cullman County, AL, Dallas County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Marengo County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Avoyelles Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Evangeline Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Madison Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Adams County, MS, Amite County, MS, Attala County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Franklin County, MS, Hinds County, MS, Holmes County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Kemper County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Warren County, MS, Wilkinson County, MS, Winston County, MS, Yazoo County, MS
Warnings issued inside it
28 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 6:52 PM CDT | Flash Flood Warning | JAN | Attala, Leake, Rankin, Scott | 4 hr |
| Apr 6, 6:54 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 61 min |
| Apr 6, 7:01 PM CDT | Tornado Warning | BMX | Tuscaloosa | 29 min |
| Apr 6, 7:03 PM CDT | Flash Flood Warning | JAN | Choctaw, Webster | 4 hr |
| Apr 6, 7:17 PM CDT | Tornado Warning | JAN | Franklin, Jefferson, Lincoln | 43 min |
| Apr 6, 7:18 PM CDT | Severe Thunderstorm Warning | JAN | Leake | 57 min |
| Apr 6, 7:22 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 43 min |
| Apr 6, 7:24 PM CDT | Tornado Warning | BMX | Jefferson | 51 min |
| Apr 6, 7:31 PM CDT | Severe Thunderstorm Warning | JAN | Attala | 44 min |
| Apr 6, 7:34 PM CDT | Tornado Warning | JAN | Hinds, Rankin | 41 min |
| Apr 6, 7:48 PM CDT | Tornado Warning | JAN | Copiah | 42 min |
| Apr 6, 7:56 PM CDT | Tornado Warning | JAN | Lawrence, Lincoln, Simpson | 49 min |
| Apr 6, 8:01 PM CDT | Tornado Warning | JAN | Leake, Scott | 59 min |
| Apr 6, 8:18 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba, Winston | 42 min |
| Apr 6, 8:22 PM CDT | Tornado Warning | JAN | Jefferson Davis | 28 min |
| Apr 6, 8:34 PM CDT | Severe Thunderstorm Warning | JAN | Newton | 56 min |
| Apr 6, 8:35 PM CDT | Flash Flood Warning | JAN | Neshoba, Newton, Winston | 6 hr |
| Apr 6, 8:47 PM CDT | Tornado Warning | JAN | Covington, Jefferson Davis, Simpson, Smith | 73 min |
| Apr 6, 8:57 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Lauderdale, Noxubee | 63 min |
| Apr 6, 9:02 PM CDT | Flash Flood Warning | JAN | East Carroll, Madison, Morehouse, Richland, West Carroll | 6 hr |
| Apr 6, 9:21 PM CDT | Tornado Warning | JAN | Jasper, Jones | 54 min |
| Apr 6, 9:50 PM CDT | Severe Thunderstorm Warning | JAN | Clarke | 55 min |
| Apr 6, 10:23 PM CDT | Flash Flood Warning | JAN | Attala, Hinds, Leake, Madison, Rankin, Scott | 5 hr |
| Apr 6, 10:25 PM CDT | Tornado Warning | MOB | Choctaw | 65 min |
| Apr 6, 10:32 PM CDT | Flash Flood Warning | JAN | Kemper, Lauderdale | 6 hr |
| Apr 6, 11:31 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 44 min |
| Apr 7, 12:21 AM CDT | Severe Thunderstorm Warning | JAN | Hinds, Rankin | 44 min |
| Apr 7, 12:47 AM CDT | Tornado Warning | BMX | Dallas | 58 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
Jackson, MS (KJAN), launched 12:00Z, 11.8 hours before the alert went out and 21 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
- 758 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 544 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 062352 SEL8 WWUS20 KWNS 062350 SPC WW 062350 ALZ000-LAZ000-MSZ000-070600- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 108 STORM PREDICTION CENTER NORMAN OK 550 PM CST SUN APR 6 2003 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND NORTHERN ALABAMA EASTERN LOUISIANA MISSISSIPPI EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 550 PM UNTIL MIDNIGHT CST. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DAMAGING TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER... THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST NORTHWEST OF ALEXANDRIA LOUISIANA TO 20 MILES SOUTH SOUTHEAST OF BIRMINGHAM ALABAMA. 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 105...TORNADO WATCH NUMBER 107. WATCH NUMBER 105...107 WILL NOT BE IN EFFECT AFTER 550 PM CST. CONTINUE...WW 104...WW 106... DISCUSSION...CONDITIONS WILL REMAIN FAVORABLE FOR TORNADIC SUPERCELLS TO DEVELOP AND MOVE ENEWD ACROSS WATCH AREA THRU THE EVENING. STRONG VEERING SHEAR PROFILES AND VERY MOIST AND UNSTABLE AIRMASS SUPPORT NOT ONLY ISOLATED STRONG TORNADOES...BUT POSSIBLY SIGNIFICANT WIND DAMAGE AND VERY LARGE HAIL. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24035. ...HALES 322,0924 341,0863 322,0863 303,0924
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 9:19 AM CDT | Mesoscale Discussion | SPC | Limestone, Madison | 116 min |
| Apr 6, 12:40 PM CDT | Mesoscale Discussion | SPC | Greene, Hale, Marengo, Perry, Pickens, Sumter and 1 more | 2 hr |
| Apr 6, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | Lauderdale | 6 hr |
| Apr 6, 1:35 PM CDT | Tornado Watch | SPC | Bibb, Butler, Chilton, Choctaw, Clarke, Dallas and 8 more | 5 hr |
| Apr 6, 2:56 PM CDT | Mesoscale Discussion | SPC | Bibb, Chilton, Dallas, Greene, Hale, Perry and 4 more | 2 hr |
| Apr 6, 6:23 PM CDT | Mesoscale Discussion | SPC | Bibb, Blount, Choctaw, Cullman, Fayette, Franklin and 14 more | 97 min |
| Apr 6, 7:38 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 16 more | 97 min |
| Apr 6, 7:50 AM CDT | Severe Thunderstorm Watch | SPC | Bienville, Bossier, Caddo, Claiborne, East Carroll, Franklin and 9 more | 5 hr |
| Apr 6, 10:00 AM CDT | Mesoscale Discussion | SPC | East Carroll, Madison, West Carroll | 2 hr |
| Apr 6, 10:20 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 16 more | 55 min |
| Apr 6, 10:30 AM CDT | Tornado Watch | SPC | Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 20 more | 6 hr |
| Apr 6, 12:03 PM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 14 more | 117 min |
| Apr 6, 3:26 PM CDT | Mesoscale Discussion | SPC | Bienville, Caldwell, De Soto, Franklin, Grant, Jackson and 11 more | 2 hr |
| Apr 6, 3:45 PM CDT | Tornado Watch | SPC | Allen, Avoyelles, Beauregard, Bienville, Bossier, Caddo and 26 more | 5 hr |
| Apr 6, 5:35 PM CDT | Mesoscale Discussion | SPC | Allen, Avoyelles, Beauregard, Bienville, Bossier, Caddo and 26 more | 115 min |
| Apr 6, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | Alcorn, Benton, Bolivar, Calhoun, Chickasaw, Coahoma and 15 more | 5 hr |
| Apr 6, 12:27 PM CDT | Mesoscale Discussion | SPC | Benton, Coahoma, DeSoto, Lafayette, Marshall, Panola and 8 more | 2 hr |
Nearby
Tornado Watches in Mississippi, 2003Tornado Watches in Alabama, 2003Tornado Watches in Louisiana, 2003Every tornado 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.