Alert archive / Mississippi / Tornado Watches in 2003
Tornado Watch 101
The Storm Prediction Center issued this tornado watch at Apr 6, 2003, 10:30 AM CDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2003, 10:30 AM CDT (15:30 UTC)
- Expired
- Apr 6, 2003, 4:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 87 counties
Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Columbia County, AR, Drew County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, De Soto Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Richland Parish, LA, Sabine Parish, LA, Tensas Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Adams County, MS, Attala County, MS, Carroll County, MS, Claiborne County, MS, Copiah County, MS, Covington County, MS, Franklin County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jefferson County, MS, Jefferson Davis County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Montgomery County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Warren County, MS, Washington County, MS, Yazoo County, MS, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Nacogdoches County, TX, Panola County, TX, Red River County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX
Warnings issued inside it
41 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 10:34 AM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 46 min |
| Apr 6, 10:42 AM CDT | Severe Thunderstorm Warning | SHV | Ouachita | 18 min |
| Apr 6, 10:44 AM CDT | Severe Thunderstorm Warning | JAN | Madison, Richland | 41 min |
| Apr 6, 10:48 AM CDT | Tornado Warning | JAN | Issaquena | 42 min |
| Apr 6, 10:54 AM CDT | Severe Thunderstorm Warning | JAN | Madison | 61 min |
| Apr 6, 10:59 AM CDT | Flash Flood Warning | JAN | East Carroll | 2 hr |
| Apr 6, 11:02 AM CDT | Tornado Warning | JAN | Madison | 43 min |
| Apr 6, 11:04 AM CDT | Tornado Warning | JAN | Richland | 46 min |
| Apr 6, 11:12 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll | 28 min |
| Apr 6, 11:17 AM CDT | Tornado Warning | JAN | Sharkey | 43 min |
| Apr 6, 11:19 AM CDT | Tornado Warning | JAN | Sharkey | 41 min |
| Apr 6, 11:26 AM CDT | Tornado Warning | JAN | Issaquena, Warren | 44 min |
| Apr 6, 11:30 AM CDT | Tornado Warning | JAN | Yazoo | 60 min |
| Apr 6, 11:33 AM CDT | Tornado Warning | JAN | Franklin | 42 min |
| Apr 6, 11:55 AM CDT | Tornado Warning | JAN | Madison | 60 min |
| Apr 6, 12:10 PM CDT | Tornado Warning | JAN | Hinds, Warren | 60 min |
| Apr 6, 12:16 PM CDT | Tornado Warning | JAN | Madison | 59 min |
| Apr 6, 12:20 PM CDT | Flash Flood Warning | JAN | Yazoo | 2 hr |
| Apr 6, 12:27 PM CDT | Flash Flood Warning | JAN | Hinds, Madison, Warren | 3 hr |
| Apr 6, 12:52 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 53 min |
| Apr 6, 12:52 PM CDT | Tornado Warning | SHV | Rusk | 38 min |
| Apr 6, 12:55 PM CDT | Tornado Warning | JAN | Madison | 60 min |
| Apr 6, 12:57 PM CDT | Tornado Warning | JAN | Rankin | 43 min |
| Apr 6, 1:14 PM CDT | Tornado Warning | JAN | Madison | 26 min |
| Apr 6, 1:17 PM CDT | Tornado Warning | SHV | Panola | 43 min |
| Apr 6, 1:18 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 47 min |
| Apr 6, 1:27 PM CDT | Severe Thunderstorm Warning | JAN | Leake | 58 min |
| Apr 6, 1:32 PM CDT | Tornado Warning | JAN | Scott | 58 min |
| Apr 6, 1:41 PM CDT | Tornado Warning | JAN | Leake | 44 min |
| Apr 6, 1:43 PM CDT | Flash Flood Warning | JAN | Leake, Rankin, Scott | 2 hr |
| Apr 6, 1:43 PM CDT | Severe Thunderstorm Warning | JAN | Madison, Rankin | 47 min |
| Apr 6, 1:53 PM CDT | Tornado Warning | JAN | Hinds | 47 min |
| Apr 6, 2:19 PM CDT | Severe Thunderstorm Warning | LZK | Bradley | 41 min |
| Apr 6, 2:23 PM CDT | Tornado Warning | JAN | Rankin | 42 min |
| Apr 6, 3:05 PM CDT | Severe Thunderstorm Warning | SHV | Union | 55 min |
| Apr 6, 3:10 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 45 min |
| Apr 6, 3:19 PM CDT | Severe Thunderstorm Warning | SHV | Bienville | 56 min |
| Apr 6, 3:25 PM CDT | Severe Thunderstorm Warning | JAN | Ashley | 60 min |
| Apr 6, 3:39 PM CDT | Tornado Warning | SHV | Angelina, Nacogdoches | 51 min |
| Apr 6, 3:57 PM CDT | Tornado Warning | JAN | Morehouse | 43 min |
| Apr 6, 3:58 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 47 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
Shreveport, LA (KSHV), launched 12:00Z, 3.5 hours before the alert went out and 78 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
- 1292 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 492 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 405 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 20.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 061530 SEL1 SPC WW 061530 ARZ000-LAZ000-MSZ000-OKZ000-TXZ000-062100- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 101 STORM PREDICTION CENTER NORMAN OK 1030 AM CDT SUN APR 6 2003 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHERN ARKANSAS NORTHERN LOUISIANA CENTRAL MISSISSIPPI EXTREME SOUTHEAST OKLAHOMA NORTHEAST TEXAS EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 1030 AM UNTIL 400 PM CDT. ...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 85 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES NORTH OF TYLER TEXAS TO 45 MILES EAST NORTHEAST OF JACKSON MISSISSIPPI. 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 SEVERE THUNDERSTORM WATCH NUMBER 99. WATCH NUMBER 99 WILL NOT BE IN EFFECT AFTER 1030 AM CDT. CONTINUE...WW 100... DISCUSSION...CLUSTER OF SEVERE/SUPERCELL THUNDERSTORMS IS TRACKING EASTWARD ACROSS THE MS RIVER INTO CENTRAL MS. OTHER ACTIVITY IS DEVELOPING OVER NORTHEAST TX. VERY FAVORABLE VERTICAL SHEAR PROFILES /3KM HELICITY OF 300-500 M2/S2/ AND STRONG INSTABILITY /MUCAPE VALUES OF 2000-3000 J/KG/ WILL FAVOR THE DEVELOPMENT OF SCATTERED TORNADIC SUPERCELLS THROUGH THE AFTERNOON. POTENTIAL EXISTS FOR STRONG TORNADOES...AS WELL AS VERY LARGE HAIL AND DAMAGING WINDS. 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 26035. ...HART 312,0892 311,0952 334,0952 334,0892
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:38 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Lafayette and 3 more | 97 min |
| Apr 6, 7:50 AM CDT | Severe Thunderstorm Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Drew and 6 more | 5 hr |
| Apr 6, 8:56 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 21 more | 2 hr |
| Apr 6, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Conway, Crawford and 22 more | 5 hr |
| Apr 6, 10:00 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Chicot, Desha, Drew, Jefferson and 4 more | 2 hr |
| Apr 6, 10:20 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 21 more | 55 min |
| Apr 6, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Cleburne, Cleveland, Craighead, Crittenden and 27 more | 5 hr |
| Apr 6, 12:27 PM CDT | Mesoscale Discussion | SPC | Arkansas, Clark, Cleburne, Cleveland, Conway, Craighead and 46 more | 2 hr |
| Apr 6, 2:18 PM CDT | Mesoscale Discussion | SPC | Boone, Conway, Crawford, Franklin, Garland, Howard and 16 more | 57 min |
| Apr 6, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Clark, Cleburne, Conway, Crawford and 35 more | 5 hr |
| Apr 6, 3:45 PM CDT | Tornado Watch | SPC | Ashley, Chicot, Union | 5 hr |
| Apr 6, 5:35 PM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Union | 115 min |
| Apr 6, 6:23 PM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Union | 97 min |
| 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, 6:50 PM CDT | Tornado Watch | SPC | Avoyelles, Caldwell, Catahoula, Concordia, East Carroll, Evangeline and 11 more | 6 hr |
| Apr 6, 12:40 PM CDT | Mesoscale Discussion | SPC | Attala, Choctaw, Holmes, Kemper, Lauderdale, Leake and 9 more | 2 hr |
| Apr 6, 1:35 PM CDT | Tornado Watch | SPC | Choctaw, Clarke, Jasper, Jones, Kemper, Lauderdale and 7 more | 5 hr |
| Apr 6, 2:56 PM CDT | Mesoscale Discussion | SPC | Kemper, Lauderdale, Leake, Neshoba, Newton, Noxubee and 2 more | 2 hr |
| Apr 5, 6:11 PM CST | Mesoscale Discussion | SPC | Baylor, Briscoe, Cottle, Crosby, Dickens, Floyd and 9 more | 64 min |
| Apr 5, 6:35 PM CST | Mesoscale Discussion | SPC | Archer, Clay, Collin, Cooke, Dallas, Delta and 23 more | 115 min |
| Apr 5, 6:40 PM CST | Tornado Watch | SPC | Briscoe, Childress, Cottle, Crosby, Dickens, Fisher and 16 more | 5 hr |
| Apr 5, 8:04 PM CST | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Collin, Cooke, Dallas and 25 more | 116 min |
| Apr 5, 9:20 PM CST | Mesoscale Discussion | SPC | Archer, Camp, Clay, Collin, Cooke, Dallas and 31 more | 55 min |
| Apr 5, 9:35 PM CST | Tornado Watch | SPC | Archer, Bowie, Camp, Cass, Clay, Collin and 38 more | 5 hr |
| Apr 5, 10:26 PM CST | Mesoscale Discussion | SPC | Baylor, Childress, Cottle, Dickens, Fisher, Foard and 11 more | 64 min |
| Apr 5, 11:43 PM CST | Mesoscale Discussion | SPC | Archer, Camp, Clay, Collin, Cooke, Dallas and 31 more | 92 min |
| Apr 6, 3:13 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Camp, Cass, Cherokee, Clay and 39 more | 107 min |
| Apr 6, 3:39 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Camp, Cass, Cherokee, Clay and 39 more | 66 min |
| Apr 6, 4:50 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Brown, Callahan, Coke, Coleman and 27 more | 115 min |
| Apr 6, 5:35 AM CDT | Severe Thunderstorm Watch | SPC | Wichita | 4 hr |
| Apr 6, 9:12 AM CDT | Mesoscale Discussion | SPC | Anderson, Bosque, Camp, Cass, Cherokee, Collin and 41 more | 2 hr |
| Apr 6, 12:40 PM CDT | Tornado Watch | SPC | Anderson, Brazos, Burleson, Cherokee, Collin, Cooke and 33 more | 5 hr |
| Apr 6, 3:00 PM CDT | Mesoscale Discussion | SPC | Anderson, Brazos, Cherokee, Delta, Freestone, Grimes and 21 more | 90 min |
Nearby
Tornado Watches in Mississippi, 2003Tornado Watches in Louisiana, 2003Tornado Watches in Texas, 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.