Alert archive / Mississippi / Tornado Watches in 2004

Tornado Watch 888

November 23, 200434 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Nov 23, 2004, 6:35 PM CST for 34 counties in Mississippi. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Nov 23, 2004, 6:35 PM CST (00:35 UTC)
Expired
Nov 24, 2004, 2:00 AM CST
In force
7 hr
Issued by
the Storm Prediction Center
All 34 counties

Alcorn County, MS, Attala County, MS, Benton County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Marshall County, MS, Montgomery County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS

The radar

The Columbus AFB radar (KGWX), 152 km from the middle of the area, began a volume at 00:38 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

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

IssuedProductOfficeCountiesLasted
Nov 23, 6:36 PM CSTTornado WarningMEGYalobusha24 min
Nov 23, 6:57 PM CSTSevere Thunderstorm WarningJANLeflore33 min
Nov 23, 7:00 PM CSTSevere Thunderstorm WarningMEGTallahatchie, Yalobusha30 min
Nov 23, 7:24 PM CSTSevere Thunderstorm WarningJANGrenada66 min
Nov 23, 7:28 PM CSTSevere Thunderstorm WarningJANCarroll47 min
Nov 23, 7:28 PM CSTFlash Flood WarningMEGYalobusha2 hr
Nov 23, 7:43 PM CSTSevere Thunderstorm WarningMEGCalhoun, Pontotoc32 min
Nov 23, 7:46 PM CSTFlash Flood WarningMEGTallahatchie119 min
Nov 23, 7:56 PM CSTSevere Thunderstorm WarningJANWashington49 min
Nov 23, 8:03 PM CSTTornado WarningMEGCalhoun, Lafayette27 min
Nov 23, 8:16 PM CSTSevere Thunderstorm WarningMEGPontotoc29 min
Nov 23, 8:46 PM CSTFlash Flood WarningJANWashington3 hr
Nov 23, 8:46 PM CSTSevere Thunderstorm WarningMEGLee29 min
Nov 23, 8:52 PM CSTFlash Flood WarningMEGPontotoc, Union113 min
Nov 23, 9:15 PM CSTSevere Thunderstorm WarningJANClay35 min
Nov 23, 9:24 PM CSTSevere Thunderstorm WarningMEGPrentiss21 min
Nov 23, 9:52 PM CSTFlash Flood WarningJANCarroll, Grenada, Leflore3 hr
Nov 23, 10:03 PM CSTSevere Thunderstorm WarningJANHumphreys, Yazoo27 min
Nov 23, 10:26 PM CSTSevere Thunderstorm WarningJANHolmes49 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, 0.6 hours before the alert went out and 121 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, Little Rock, AR at 00:00Z on 2004-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Little Rock, AR at 00:00Z on 2004-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
790 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

249 
WWUS20 KWNS 240035
SEL8  
SPC WW 240035
MSZ000-240800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 888
NWS STORM PREDICTION CENTER NORMAN OK
635 PM CST TUE NOV 23 2004

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

       NORTHERN AND CENTRAL MISSISSIPPI

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 635 PM
UNTIL 200 AM CST.

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 ALONG AND 65 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES NORTH NORTHEAST OF OXFORD MISSISSIPPI TO
40 MILES SOUTH OF GREENWOOD 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...CONTINUE...WW 885...WW 887...

DISCUSSION...SLOWLY MOVING QUASILINEAR MCS WITH EMBEDDED SUPERCELLS
NOW ENTERING NW/W CNTRL MS EXPECTED TO CONTINUE SLOWLY EWD THROUGH
EARLY WEDNESDAY.  STRENGTHENING DEEP SHEAR /ASSOCIATED WITH
CONTINUED ENE MOTION OF TX SHORTWAVE TROUGH/...AND QUALITY OF
BOUNDARY LAYER MOISTURE INFLOW SUGGEST POTENTIAL FOR
TORNADOES...ESPECIALLY LATER TONIGHT AS LEADING EDGE OF MCS REMAINS
PARALLEL TO STRENGTHENING DEEP FLOW.

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 500.
MEAN STORM MOTION VECTOR 23035.


...CORFIDI

345,0880 325,0885 325,0911 345,0902

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 23, 7:53 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 13 more37 min
Nov 23, 8:15 PM CSTTornado WatchSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 15 more6 hr
Nov 23, 9:00 PM CSTMesoscale DiscussionSPCAlcorn, Itawamba, Prentiss, Tishomingo2 hr
Nov 23, 9:14 PM CSTMesoscale DiscussionSPCAdams, Claiborne, Franklin, Hinds, Humphreys, Issaquena and 5 more2 hr
Nov 23, 9:20 PM CSTTornado WatchSPCItawamba, Lowndes, Monroe, Tishomingo7 hr
Nov 23, 10:01 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Franklin, Issaquena and 4 more119 min
Nov 24, 12:30 AM CSTMesoscale DiscussionSPCClarke, Covington, Forrest, George, Greene, Hancock and 17 more30 min
Nov 24, 12:45 AM CSTTornado WatchSPCClarke, Covington, Forrest, George, Greene, Jasper and 18 more5 hr
Nov 24, 1:28 AM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 14 more32 min
Nov 24, 1:45 AM CSTTornado WatchSPCAdams, Amite, Attala, Claiborne, Copiah, Franklin and 15 more4 hr
Nov 24, 2:43 AM CSTMesoscale DiscussionSPCClarke, Covington, Forrest, George, Greene, Jasper and 21 more62 min
Nov 24, 2:50 AM CSTTornado WatchSPCHancock, Harrison, Jackson3 hr
Nov 24, 3:35 AM CSTMesoscale DiscussionSPCLowndes25 min
Nov 24, 4:57 AM CSTMesoscale DiscussionSPCClarke, Forrest, George, Greene, Lamar, Pearl River and 3 more63 min
Nov 24, 5:20 AM CSTTornado WatchSPCGeorge, Jackson6 hr
Nov 24, 5:35 AM CSTMesoscale DiscussionSPCHancock, Harrison, Jackson25 min
Nov 24, 5:55 AM CSTTornado WatchSPCHarrison, Jackson2 hr
Nov 24, 10:16 AM CSTMesoscale DiscussionSPCAlcorn, Benton, Lafayette, Marshall, Prentiss, Tippah and 1 more2 hr

Nearby

Tornado Watches in Mississippi, 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.