Alert archive / Texas / Tornado Watches in 2004

Tornado Watch 889

November 23, 2004Sabine Parish, Louisiana; 40 counties in Texas

The Storm Prediction Center issued this tornado watch at Nov 23, 2004, 7:50 PM CST for Sabine Parish, Louisiana; 40 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Nov 23, 2004, 7:50 PM CST (01:50 UTC)
Expired
Nov 24, 2004, 2:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 41 counties

Sabine Parish, LA, Angelina County, TX, Austin County, TX, Bee County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Calhoun County, TX, Chambers County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Galveston County, TX, Goliad County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Houston County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Lavaca County, TX, Leon County, TX, Liberty County, TX, Madison County, TX, Matagorda County, TX, Montgomery County, TX, Newton County, TX, Polk County, TX, Refugio County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Trinity County, TX, Tyler County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX

The radar

The Houston radar (KHGX), 90 km from the middle of the area, began a volume at 01:51 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

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

IssuedProductOfficeCountiesLasted
Nov 23, 7:50 PM CSTSevere Thunderstorm WarningCRPGoliad55 min
Nov 23, 7:58 PM CSTFlash Flood WarningCRPGoliad92 min
Nov 23, 8:01 PM CSTSevere Thunderstorm WarningEWXFayette, Lee59 min
Nov 23, 8:03 PM CSTSevere Thunderstorm WarningHGXBurleson, Washington57 min
Nov 23, 8:11 PM CSTSevere Thunderstorm WarningCRPVictoria64 min
Nov 23, 8:14 PM CSTTornado WarningCRPBee, Live Oak46 min
Nov 23, 8:19 PM CSTSevere Thunderstorm WarningHGXMadison41 min
Nov 23, 8:25 PM CSTSevere Thunderstorm WarningHGXBrazos, Grimes50 min
Nov 23, 8:28 PM CSTSevere Thunderstorm WarningEWXLavaca47 min
Nov 23, 8:36 PM CSTSevere Thunderstorm WarningHGXJackson39 min
Nov 23, 8:41 PM CSTFlash Flood WarningCRPVictoria109 min
Nov 23, 8:44 PM CSTSevere Thunderstorm WarningCRPGoliad61 min
Nov 23, 9:00 PM CSTSevere Thunderstorm WarningHGXHouston, Trinity45 min
Nov 23, 9:02 PM CSTSevere Thunderstorm WarningCRPBee, Refugio, San Patricio58 min
Nov 23, 9:02 PM CSTSevere Thunderstorm WarningHGXColorado, Wharton43 min
Nov 23, 9:08 PM CSTTornado WarningHGXWharton52 min
Nov 23, 9:09 PM CSTSevere Thunderstorm WarningHGXWalker21 min
Nov 23, 9:11 PM CSTSevere Thunderstorm WarningCRPCalhoun, Victoria64 min
Nov 23, 9:21 PM CSTSevere Thunderstorm WarningHGXAustin, Harris, Montgomery, Waller39 min
Nov 23, 9:23 PM CSTTornado WarningHGXTrinity37 min
Nov 23, 9:39 PM CSTFlash Flood WarningHGXTrinity2 hr
Nov 23, 9:46 PM CSTSevere Thunderstorm WarningHGXBrazoria, Fort Bend44 min
Nov 23, 9:55 PM CSTSevere Thunderstorm WarningHGXPolk50 min
Nov 23, 9:58 PM CSTSevere Thunderstorm WarningLCHTyler62 min
Nov 23, 10:00 PM CSTSevere Thunderstorm WarningHGXHarris45 min
Nov 23, 10:01 PM CSTSevere Thunderstorm WarningHGXTrinity29 min
Nov 23, 10:03 PM CSTSevere Thunderstorm WarningHGXJackson, Matagorda42 min
Nov 23, 10:10 PM CSTSevere Thunderstorm WarningHGXLiberty50 min
Nov 23, 10:23 PM CSTSevere Thunderstorm WarningHGXChambers, Galveston37 min
Nov 23, 10:31 PM CSTSevere Thunderstorm WarningHGXBrazoria29 min
Nov 23, 10:41 PM CSTSevere Thunderstorm WarningLCHHardin, Jasper64 min
Nov 23, 10:59 PM CSTSevere Thunderstorm WarningLCHJefferson, Orange61 min
Nov 23, 11:00 PM CSTSevere Thunderstorm WarningHGXChambers, Galveston30 min
Nov 23, 11:04 PM CSTSevere Thunderstorm WarningLCHNewton56 min
Nov 23, 11:14 PM CSTSevere Thunderstorm WarningSHVSabine46 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

Corpus Christi, TX (KCRP), launched 00:00Z, 1.8 hours before the alert went out and 244 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, Corpus Christi, TX at 00:00Z on 2004-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3323 joules per kilogram.LCLLFCEL10008507005003002001001 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, Corpus Christi, TX at 00:00Z on 2004-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 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
3323 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
1.9
Supercell composite
7.5

Open this sounding in Storm Lab

The text

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

178 
WWUS20 KWNS 240153
SEL9  
SPC WW 240150
TXZ000-CWZ000-240800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 889
NWS STORM PREDICTION CENTER NORMAN OK
750 PM CST TUE NOV 23 2004

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

       EASTERN AND SOUTHEAST TEXAS
       COASTAL WATERS

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 750 PM
UNTIL 200 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 25 MILES NORTH NORTHEAST OF LUFKIN TEXAS TO 35
MILES SOUTH SOUTHWEST OF PALACIOS TEXAS.

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 885. WATCH NUMBER 885 WILL NOT BE IN EFFECT AFTER 750
PM CST. CONTINUE...WW 887...WW 888...

DISCUSSION...THUNDERSTORMS/SUPERCELLS IN ERN TX EXPECTED TO FURTHER
INCREASE IN STRENGTH/COVERAGE AS STRONG DPVA CONTINUES TO SPREAD ENE
ACROSS REGION. AREA RAOB/VWP/PROFILER DATA...AND RICH GULF MOISTURE
SUPPLY...SHOW GOOD SETUP FOR SUSTAINED ACTIVITY WITH LARGE HAIL/HIGH
WIND AND POSSIBLY A COUPLE TORNADOES...ESPECIALLY INVOF RETREATING
COASTAL FRONT ATTM EXTENDING FROM NEAR CLL TO AEX.  STORMS SHOULD
MERGE INTO A STRONG SQUALL LINE LATER TONIGHT.

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 26035.


...CORFIDI

313,0930 281,0950 281,0975 313,0960

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 23, 7:53 PM CSTMesoscale DiscussionSPCAcadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 20 more37 min
Nov 23, 8:15 PM CSTTornado WatchSPCAllen, Avoyelles, Beauregard, Caldwell, Catahoula, Concordia and 21 more6 hr
Nov 23, 9:14 PM CSTMesoscale DiscussionSPCAcadia, Allen, Avoyelles, Catahoula, Concordia, East Carroll and 7 more2 hr
Nov 23, 10:01 PM CSTMesoscale DiscussionSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 38 more119 min
Nov 23, 11:00 PM CSTSevere Thunderstorm WatchSPCAcadia, Ascension, Assumption, Calcasieu, Cameron, Iberia and 15 more7 hr
Nov 24, 12:30 AM CSTMesoscale DiscussionSPCSaint Tammany, Tangipahoa, Washington30 min
Nov 24, 12:45 AM CSTTornado WatchSPCSaint Helena, Tangipahoa, Washington5 hr
Nov 24, 1:28 AM CSTMesoscale DiscussionSPCAvoyelles, Concordia, East Baton Rouge, East Carroll, East Feliciana, Evangeline and 9 more32 min
Nov 24, 1:45 AM CSTTornado WatchSPCEast Baton Rouge, East Feliciana, Livingston, Pointe Coupee, Saint Helena, Saint Landry and 2 more4 hr
Nov 24, 2:43 AM CSTMesoscale DiscussionSPCTangipahoa, Washington62 min
Nov 24, 2:50 AM CSTTornado WatchSPCAscension, Assumption, East Baton Rouge, Iberville, Jefferson, Lafourche and 11 more3 hr
Nov 24, 5:35 AM CSTMesoscale DiscussionSPCJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard25 min
Nov 24, 5:55 AM CSTTornado WatchSPCPlaquemines, Saint Bernard2 hr
Nov 23, 6:23 PM CSTMesoscale DiscussionSPCAnderson, Angelina, Bastrop, Bell, Brazos, Burleson and 23 more2 hr
Nov 23, 7:17 PM CSTMesoscale DiscussionSPCAngelina, Austin, Brazoria, Calhoun, Chambers, Cherokee and 35 more58 min
Nov 23, 7:31 PM CSTMesoscale DiscussionSPCCarson, Hansford, Hutchinson, Lipscomb, Moore, Ochiltree and 3 more5 hr

Nearby

Tornado Watches in Texas, 2004Tornado Watches in Louisiana, 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.