Alert archive / Mississippi / Tornado Watches in 2005

Tornado Watch 211

April 29, 20054 states

The Storm Prediction Center issued this tornado watch at Apr 29, 2005, 3:35 PM CDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 29, 2005, 3:35 PM CDT (20:35 UTC)
Expired
Apr 29, 2005, 11:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 76 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Hempstead County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Pike County, AR, Sevier County, AR, Union County, AR, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, East Carroll Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, 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, Issaquena County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Noxubee 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, Tishomingo County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Cass County, TX, Marion County, TX

The radar

The Little Rock radar (KLZK), 129 km from the middle of the area, began a volume at 20:35 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
Apr 29, 6:50 PM CDTSevere Thunderstorm WarningLZKBradley40 min
Apr 29, 7:27 PM CDTSevere Thunderstorm WarningMEGCoahoma, Quitman, Tunica33 min
Apr 29, 7:47 PM CDTSevere Thunderstorm WarningJANBolivar43 min
Apr 29, 7:57 PM CDTSevere Thunderstorm WarningJANChicot63 min
Apr 29, 8:07 PM CDTSevere Thunderstorm WarningLZKDesha38 min
Apr 29, 8:23 PM CDTTornado WarningMEGPanola37 min
Apr 29, 8:33 PM CDTSevere Thunderstorm WarningJANSunflower28 min
Apr 29, 8:53 PM CDTTornado WarningMEGLafayette37 min
Apr 29, 8:54 PM CDTSevere Thunderstorm WarningLZKDrew36 min
Apr 29, 8:59 PM CDTSevere Thunderstorm WarningJANBolivar, Sunflower, Washington31 min
Apr 29, 9:15 PM CDTTornado WarningJANLeflore, Sunflower45 min
Apr 29, 9:15 PM CDTFlash Flood WarningMEGTate2 hr
Apr 29, 9:20 PM CDTSevere Thunderstorm WarningJANMorehouse55 min
Apr 29, 9:24 PM CDTSevere Thunderstorm WarningSHVUnion51 min
Apr 29, 9:37 PM CDTSevere Thunderstorm WarningJANChicot53 min
Apr 29, 10:00 PM CDTTornado WarningJANCarroll, Leflore49 min
Apr 29, 10:03 PM CDTSevere Thunderstorm WarningJANChicot24 min
Apr 29, 10:06 PM CDTSevere Thunderstorm WarningJANAshley39 min
Apr 29, 10:47 PM CDTTornado WarningJANGrenada, Montgomery, Webster28 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 12:00Z, 8.6 hours before the alert went out and 218 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 12:00Z on 2005-04-29Temperature 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 12:00Z on 2005-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939587897117Sfc1 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
1155 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 292038
SEL1  
SPC WW 292038
ARZ000-LAZ000-MSZ000-TXZ000-300400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 211
NWS STORM PREDICTION CENTER NORMAN OK
335 PM CDT FRI APR 29 2005

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

       SOUTHERN ARKANSAS
       NORTHERN LOUISIANA
       NORTHERN MISSISSIPPI
       NORTHEAST CORNER OF TEXAS

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 335 PM UNTIL 1100
PM CDT.

TORNADOES...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 APPROXIMATELY ALONG AND 65 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTHWEST OF TEXARKANA
ARKANSAS TO 35 MILES NORTH NORTHEAST OF COLUMBUS MISSISSIPPI.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).

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 210...

DISCUSSION...SEVERE THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY AHEAD
OF SURFACE LOW ALONG SWRN AR/OK BORDER AND THE COLD FRONT EXTENDING
INTO NERN TX.  AIRMASS HAS BECOME MODERATELY UNSTABLE WITH CAP
CONTINUING TO WEAKEN.  STRONG DEEP LAYER SHEAR IN PLACE ACROSS WARM
SECTOR...THUS THUNDERSTORMS SHOULD RATHER QUICKLY BECOME SUPERCELLS
WITH ASSOCIATED THREAT OF VERY LARGE HAIL AND TORNADOES.  STORMS
WILL DEVELOP E/NEWD ACROSS THE WATCH WITH ADDITIONAL INITIATION
POSSIBLY OCCURRING ACROSS NRN MS THIS AFTERNOON AHEAD OF THE MAIN
AREA OF EXPECTED STORM DEVELOPMENT TO THE W.

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 25040.


...HALES

340,0942 350,0881 330,0881 321,0942

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 7:39 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 21 more96 min
Apr 28, 9:51 PM CDTMesoscale DiscussionSPCBaxter, Clay, Cleburne, Craighead, Fulton, Greene and 11 more84 min
Apr 29, 4:36 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Crawford and 15 more114 min
Apr 29, 6:20 AM CDTSevere Thunderstorm WatchSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 30 more7 hr
Apr 29, 9:34 AM CDTMesoscale DiscussionSPCConway, Crittenden, Cross, Faulkner, Lee, Logan and 12 more116 min
Apr 29, 12:25 PM CDTMesoscale DiscussionSPCCleburne, Conway, Craighead, Crittenden, Cross, Faulkner and 19 more35 min
Apr 29, 12:50 PM CDTSevere Thunderstorm WatchSPCCleburne, Conway, Craighead, Crittenden, Cross, Faulkner and 23 more6 hr
Apr 29, 2:28 PM CDTMesoscale DiscussionSPCBradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 13 more107 min
Apr 29, 3:40 PM CDTMesoscale DiscussionSPCCleburne, Conway, Craighead, Crittenden, Cross, Faulkner and 11 more2 hr
Apr 29, 6:04 PM CDTMesoscale DiscussionSPCCraighead, Crittenden, Cross, Lee, Mississippi, Poinsett and 1 more56 min
Apr 29, 6:29 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 16 more91 min
Apr 29, 6:55 PM CDTSevere Thunderstorm WatchSPCAlcorn, Benton, Marshall7 hr
Apr 29, 4:10 PM CDTMesoscale DiscussionSPCAnderson, Bastrop, Brazos, Burleson, Caldwell, Cherokee and 15 more2 hr

Nearby

Tornado Watches in Mississippi, 2005Tornado Watches in Arkansas, 2005Tornado Watches in Louisiana, 2005Every tornado watch in 2005

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.