Alert archive / Mississippi / Tornado Watches in 2004
Tornado Watch 347
The Storm Prediction Center issued this tornado watch at May 30, 2004, 10:55 PM CDT for 37 counties in Mississippi; 4 counties in Tennessee. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 30, 2004, 10:55 PM CDT (03:55 UTC)
- Expired
- May 31, 2004, 4:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 41 counties
Alcorn County, MS, Attala County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Coahoma County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Madison County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Union County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Yalobusha County, MS, Yazoo County, MS, Chester County, TN, Hardeman County, TN, Henderson County, TN, McNairy County, TN
The radar
The Columbus AFB radar (KGWX), 145 km from the middle of the area, began a volume at 03:54 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 10:56 PM CDT | Severe Thunderstorm Warning | MEG | Alcorn | 34 min |
| May 30, 11:08 PM CDT | Severe Thunderstorm Warning | MEG | Prentiss | 37 min |
| May 30, 11:21 PM CDT | Severe Thunderstorm Warning | JAN | Montgomery, Webster | 59 min |
| May 30, 11:22 PM CDT | Severe Thunderstorm Warning | MEG | Lee, Pontotoc | 23 min |
| May 30, 11:23 PM CDT | Severe Thunderstorm Warning | MEG | Union | 22 min |
| May 30, 11:25 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw | 35 min |
| May 30, 11:31 PM CDT | Severe Thunderstorm Warning | JAN | Carroll | 24 min |
| May 30, 11:36 PM CDT | Flash Flood Warning | JAN | Carroll, Grenada, Leflore | 6 hr |
| May 30, 11:37 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba | 23 min |
| May 30, 11:43 PM CDT | Severe Thunderstorm Warning | MEG | Lee | 17 min |
| May 30, 11:56 PM CDT | Flash Flood Warning | JAN | Bolivar, Sunflower, Washington | 6 hr |
| May 30, 11:56 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Monroe | 49 min |
| May 31, 12:01 AM CDT | Severe Thunderstorm Warning | JAN | Carroll | 44 min |
| May 31, 12:16 AM CDT | Tornado Warning | JAN | Carroll, Montgomery | 44 min |
| May 31, 12:37 AM CDT | Severe Thunderstorm Warning | JAN | Washington | 48 min |
| May 31, 12:46 AM CDT | Tornado Warning | JAN | Washington | 39 min |
| May 31, 12:58 AM CDT | Severe Thunderstorm Warning | JAN | Clay, Oktibbeha | 47 min |
| May 31, 1:02 AM CDT | Tornado Warning | JAN | Humphreys, Sunflower | 43 min |
| May 31, 1:23 AM CDT | Severe Thunderstorm Warning | JAN | Carroll, Holmes, Leflore | 57 min |
| May 31, 2:13 AM CDT | Severe Thunderstorm Warning | JAN | Attala | 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
Little Rock, AR (KLZK), launched 00:00Z, 3.9 hours before the alert went out and 91 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
- 3112 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 741 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 3.7
- Supercell composite
- 13.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 310355
SEL7
SPC WW 310355
MSZ000-TNZ000-310900-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 347
NWS STORM PREDICTION CENTER NORMAN OK
1055 PM CDT SUN MAY 30 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL MISSISSIPPI
SOUTHWEST TENNESSEE
EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1055 PM UNTIL
400 AM CDT.
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 75 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 55 MILES WEST SOUTHWEST OF GREENWOOD
MISSISSIPPI TO 40 MILES NORTHEAST OF TUPELO 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 TORNADO
WATCH NUMBER 336. WATCH NUMBER 336 WILL NOT BE IN EFFECT AFTER
1055 PM CDT. CONTINUE...WW 341...WW 343...WW 344...WW 345...WW
346...
DISCUSSION...LINE OF STORMS WILL CONTINUE BOWING QUICKLY EWD ACROSS
REMAINDER OF NERN MS DURING THE NEXT HOUR OR TWO...WITH TAIL END
SLOWLY ALIGNING ITSELF E-W INTO CENTRAL MS. INSTABILITY AND SHEAR
REMAIN VERY FAVORABLE FOR SUPERCELLS AND POSSIBLE TORNADOES...BOTH
WITH ACCELERATING BOWING SEGMENTS AND WITH DISCRETE DEVELOPMENT
ALONG ITS OUTFLOW BOUNDARY OVERNIGHT.
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 25025.
...EVANS
341,0905 354,0881 333,0881 320,0905SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 8:54 PM CDT | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 30 more | 66 min |
| May 30, 8:55 PM CDT | Mesoscale Discussion | SPC | Adams, Amite, Claiborne, Copiah, Franklin, Hinds and 10 more | 65 min |
| May 30, 9:15 PM CDT | Tornado Watch | SPC | Chickasaw, Clay, Itawamba, Lee, Monroe, Prentiss and 1 more | 7 hr |
| May 30, 10:35 PM CDT | Tornado Watch | SPC | Issaquena | 5 hr |
| May 30, 11:05 PM CDT | Mesoscale Discussion | SPC | Itawamba, Lee, Pontotoc, Prentiss, Tishomingo | 55 min |
| May 31, 1:06 AM CDT | Mesoscale Discussion | SPC | Monroe | 84 min |
| May 31, 1:27 AM CDT | Mesoscale Discussion | SPC | Attala, Choctaw, Holmes, Humphreys, Issaquena, Madison and 4 more | 2 hr |
| May 31, 9:21 AM CDT | Mesoscale Discussion | SPC | Forrest, George, Greene, Hancock, Harrison, Jackson and 3 more | 54 min |
| May 31, 10:00 AM CDT | Tornado Watch | SPC | Amite, Forrest, George, Greene, Hancock, Harrison and 9 more | 6 hr |
| May 31, 1:06 PM CDT | Mesoscale Discussion | SPC | Amite, Forrest, George, Greene, Hancock, Harrison and 9 more | 54 min |
| May 31, 12:40 AM CDT | Tornado Watch | SPC | Anderson, Blount, Bradley, Campbell, Carter, Claiborne and 23 more | 5 hr |
| May 31, 3:40 AM CDT | Mesoscale Discussion | SPC | Anderson, Blount, Bradley, Campbell, Carter, Claiborne and 24 more | 95 min |
Nearby
Tornado Watches in Mississippi, 2004Tornado Watches in Tennessee, 2004Every tornado watch in 2004
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; radar from the NEXRAD Level II archive.