Alert archive / Mississippi / Tornado Watches in 2003
Tornado Watch 55
The Storm Prediction Center issued this tornado watch at Mar 18, 2003, 10:25 PM CST for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 18, 2003, 10:25 PM CST (04:25 UTC)
- Expired
- Mar 19, 2003, 5:00 AM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 76 counties
Baldwin County, AL, Bibb County, AL, Choctaw County, AL, Clarke County, AL, Colbert County, AL, Cullman County, AL, Dallas County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marengo County, AL, Marion County, AL, Mobile County, AL, Monroe County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Wilcox County, AL, Winston County, AL, Escambia County, FL, Washington Parish, LA, Alcorn County, MS, Attala County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Choctaw County, MS, Clarke County, MS, Clay County, MS, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Itawamba County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lafayette County, MS, Lamar County, MS, Lauderdale County, MS, Leake County, MS, Lee County, MS, Lowndes County, MS, Marion County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Pearl River County, MS, Perry County, MS, Pontotoc County, MS, Prentiss County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Wayne County, MS, Webster County, MS, Winston County, MS
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 11:05 PM CST | Severe Thunderstorm Warning | JAN | Noxubee | 30 min |
| Mar 18, 11:22 PM CST | Severe Thunderstorm Warning | JAN | Leake | 43 min |
| Mar 18, 11:25 PM CST | Severe Thunderstorm Warning | BMX | Jefferson | 65 min |
| Mar 18, 11:26 PM CST | Severe Thunderstorm Warning | JAN | Lowndes | 44 min |
| Mar 18, 11:30 PM CST | Tornado Warning | JAN | Smith | 30 min |
| Mar 18, 11:35 PM CST | Severe Thunderstorm Warning | JAN | Covington | 40 min |
| Mar 18, 11:43 PM CST | Severe Thunderstorm Warning | JAN | Attala | 42 min |
| Mar 18, 11:45 PM CST | Tornado Warning | JAN | Newton, Scott | 45 min |
| Mar 19, 1:34 AM CST | Severe Thunderstorm Warning | JAN | Lauderdale | 21 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 00:00Z, 4.4 hours before the alert went out and 130 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
- 209 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 190420 SEL5 SPC WW 190425 ALZ000-FLZ000-MSZ000-191100- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 55 STORM PREDICTION CENTER NORMAN OK 1025 PM CST TUE MAR 18 2003 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF WESTERN ALABAMA EXTREME WESTERN FLORIDA PANHANDLE EASTERN MISSISSIPPI EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1025 PM UNTIL 500 AM CST. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 85 STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST SOUTHWEST OF MOBILE ALABAMA TO 25 MILES NORTHWEST OF MUSCLE SHOALS 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 53...TORNADO WATCH NUMBER 54. WATCH NUMBER 53...54 WILL NOT BE IN EFFECT AFTER 1025 PM CST. DISCUSSION...SQUALL LINE CONTINUES TO TRACK EASTWARD ACROSS CENTRAL MS. WIND FIELDS ARE STEADILY INCREASING OVER THIS REGION...WITH THE THREAT OF DAMAGING WINDS IN BOW/LEWP SEGMENTS. LOW LEVEL VERTICAL SHEAR IS ALSO VERY STRONG...SUGGESTING A CONTINUED THREAT OF ISOLATED TORNADOES IN ROTATING STORMS AHEAD OF OR EMBEDDED IN LINE. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24035. ...HART 350,0862 303,0871 303,0900 350,0892
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 6:39 PM CST | Mesoscale Discussion | SPC | Butler, Choctaw, Clarke, Coffee, Conecuh, Covington and 13 more | 3 hr |
| Mar 18, 7:30 PM CST | Tornado Watch | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 5 more | 6 hr |
| Mar 18, 9:10 PM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Choctaw, Clarke, Conecuh and 14 more | 3 hr |
| Mar 18, 11:50 PM CST | Mesoscale Discussion | SPC | Bibb, Choctaw, Clarke, Colbert, Cullman, Fayette and 18 more | 115 min |
| Mar 19, 2:02 AM CST | Mesoscale Discussion | SPC | Bibb, Choctaw, Clarke, Colbert, Cullman, Dallas and 22 more | 118 min |
| Mar 19, 7:10 AM CST | Mesoscale Discussion | SPC | Madison | 2 hr |
| Mar 19, 8:00 AM CST | Tornado Watch | SPC | DeKalb, Jackson, Madison, Marshall, Morgan | 4 hr |
| Mar 19, 9:28 AM CST | Mesoscale Discussion | SPC | Blount, DeKalb, Jackson, Madison, Marshall | 2 hr |
| Mar 19, 11:30 AM CST | Tornado Watch | SPC | DeKalb, Jackson, Marshall | 7 hr |
| Mar 19, 11:58 AM CST | Mesoscale Discussion | SPC | DeKalb, Etowah, Jackson, Marshall | 2 hr |
| Mar 19, 12:59 PM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Dale, Henry, Houston, Lee and 4 more | 3 hr |
| Mar 19, 1:30 PM CST | Tornado Watch | SPC | Autauga, Barbour, Bullock, Butler, Calhoun, Chambers and 15 more | 6 hr |
| Mar 19, 2:06 PM CST | Mesoscale Discussion | SPC | Calhoun, Cherokee, DeKalb, Etowah, Jackson, Marshall and 1 more | 114 min |
| Mar 19, 3:35 PM CST | Mesoscale Discussion | SPC | Barbour, Chambers, Lee, Macon, Randolph, Russell and 1 more | 115 min |
| Mar 19, 3:52 PM CST | Mesoscale Discussion | SPC | Calhoun, Cherokee, Cleburne, DeKalb, Etowah | 113 min |
| Mar 18, 11:53 PM CST | Mesoscale Discussion | SPC | Hamilton, Jefferson, Leon, Madison, Taylor | 3 hr |
| Mar 19, 2:08 PM CST | Mesoscale Discussion | SPC | Brevard, Broward, Duval, Flagler, Glades, Hardee and 17 more | 3 hr |
| Mar 19, 5:32 PM CST | Mesoscale Discussion | SPC | Baker, Bradford, Brevard, Clay, Duval, Flagler and 10 more | 118 min |
| Mar 18, 6:08 PM CST | Mesoscale Discussion | SPC | Ascension, Concordia, East Baton Rouge, East Carroll, East Feliciana, Franklin and 11 more | 2 hr |
Nearby
Tornado Watches in Mississippi, 2003Tornado Watches in Alabama, 2003Tornado Watches in Florida, 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.