Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 430

May 24, 200314 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 24, 2003, 10:20 PM CDT for 14 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 24, 2003, 10:20 PM CDT (03:20 UTC)
Expired
May 25, 2003, 4:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Collin County, TX, Dallas County, TX, Denton County, TX, Ellis County, TX, Henderson County, TX, Hunt County, TX, Kaufman County, TX, Montague County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 24, 10:26 PM CDTSevere Thunderstorm WarningFWDHunt49 min
May 24, 10:33 PM CDTSevere Thunderstorm WarningFWDKaufman, Rockwall72 min
May 24, 10:42 PM CDTSevere Thunderstorm WarningFWDCollin63 min
May 24, 11:12 PM CDTSevere Thunderstorm WarningFWDVan Zandt63 min
May 24, 11:38 PM CDTSevere Thunderstorm WarningFWDCollin67 min
May 24, 11:41 PM CDTSevere Thunderstorm WarningFWDKaufman64 min
May 25, 12:08 AM CDTSevere Thunderstorm WarningFWDVan Zandt67 min
May 25, 12:15 AM CDTSevere Thunderstorm WarningFWDDallas45 min
May 25, 12:15 AM CDTSevere Thunderstorm WarningFWDHunt, Rockwall60 min
May 25, 12:20 AM CDTSevere Thunderstorm WarningFWDHenderson55 min
May 25, 12:33 AM CDTSevere Thunderstorm WarningFWDDenton57 min
May 25, 12:48 AM CDTFlash Flood WarningFWDDallas3 hr
May 25, 1:17 AM CDTSevere Thunderstorm WarningFWDHenderson58 min
May 25, 1:26 AM CDTSevere Thunderstorm WarningFWDDenton49 min
May 25, 3:58 AM CDTFlash Flood WarningFWDDallas3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 3.3 hours before the alert went out and 38 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, Fort Worth, TX at 00:00Z on 2003-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3246 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2003-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 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
3246 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1342 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
7 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.

000 
WWUS20 KWNS 250315
SEL0  
SPC WW 250320
TXZ000-250900-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 430 
NWS STORM PREDICTION CENTER NORMAN OK 
1020 PM CDT SAT MAY 24 2003

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

       NORTH CENTRAL TEXAS

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1020 PM
UNTIL 400 AM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 40 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 55 MILES NORTHWEST OF FORT WORTH
TEXAS TO 85 MILES EAST SOUTHEAST OF DALLAS TEXAS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.


OTHER WATCH INFORMATION...CONTINUE...WW 429...


DISCUSSION...CLUSTER OF INTENSE THUNDERSTORMS OVER NORTHEAST TX WILL
CONTINUE TO BACKBUILD TOWARD THE DFW AREA DURING THE NEXT FEW HOURS.
 VERY STRONG INSTABILITY AND SUFFICIENT SHEAR WILL PROMOTE THE
THREAT OF LARGE HAIL AND DAMAGING WINDS IN STRONGER CELLS.

AVIATION...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 33020.


...HART

335,0980 325,0953 314,0953 324,0980 

WWUS20 KWNS 250315
SEL0  
SPC WW 250320
TXZ000-250900-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 430 
NWS STORM PREDICTION CENTER NORMAN OK 
1020 PM CDT SAT MAY 24 2003

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

       NORTH CENTRAL TEXAS

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1020 PM
UNTIL 400 AM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 40 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 55 MILES NORTHWEST OF FORT WORTH
TEXAS TO 85 MILES EAST SOUTHEAST OF DALLAS TEXAS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.


OTHER WATCH INFORMATION...CONTINUE...WW 429...


DISCUSSION...CLUSTER OF INTENSE THUNDERSTORMS OVER NORTHEAST TX WILL
CONTINUE TO BACKBUILD TOWARD THE DFW AREA DURING THE NEXT FEW HOURS.
 VERY STRONG INSTABILITY AND SUFFICIENT SHEAR WILL PROMOTE THE
THREAT OF LARGE HAIL AND DAMAGING WINDS IN STRONGER CELLS.

AVIATION...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 33020.


...HART

335,0980 325,0953 314,0953 324,0980

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 8:22 PM CDTMesoscale DiscussionSPCArcher, Armstrong, Bailey, Baylor, Briscoe, Carson and 48 more23 min
May 24, 8:40 PM CDTSevere Thunderstorm WatchSPCArcher, Armstrong, Baylor, Briscoe, Castro, Childress and 30 more5 hr
May 24, 9:32 PM CDTMesoscale DiscussionSPCCollin, Cooke, Delta, Denton, Fannin, Franklin and 7 more118 min
May 24, 10:05 PM CDTMesoscale DiscussionSPCArcher, Armstrong, Baylor, Briscoe, Childress, Clay and 26 more85 min
May 24, 11:32 PM CDTMesoscale DiscussionSPCAnderson, Archer, Baylor, Childress, Clay, Collin and 30 more118 min
May 25, 1:11 AM CDTMesoscale DiscussionSPCAnderson, Archer, Baylor, Clay, Collin, Cooke and 32 more2 hr
May 25, 1:35 AM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Cherokee, Clay, Collin, Cooke and 28 more6 hr
May 25, 3:42 AM CDTMesoscale DiscussionSPCClay, Collin, Cooke, Dallas, Denton, Ellis and 10 more2 hr
May 25, 1:10 PM CDTMesoscale DiscussionSPCAndrews, Crane, Crockett, Ector, Gaines, Loving and 9 more95 min
May 25, 4:20 PM CDTMesoscale DiscussionSPCCulberson, Loving, Pecos, Reeves, Ward, Winkler85 min
May 25, 4:35 PM CDTSevere Thunderstorm WatchSPCBrewster, Crane, Loving, Pecos, Reeves, Terrell and 2 more6 hr
May 25, 5:06 PM CDTMesoscale DiscussionSPCBell, Burnet, Crockett, Culberson, Falls, Houston and 18 more114 min
May 25, 6:19 PM CDTMesoscale DiscussionSPCConcho, Crockett, Edwards, Irion, Kerr, Kimble and 9 more86 min

Nearby

Severe Thunderstorm Watches in Texas, 2003Every severe thunderstorm 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.