Alert archive / Texas / Tornado Watches in 2003

Tornado Watch 93

April 5, 200328 counties in Texas

The Storm Prediction Center issued this tornado watch at Apr 5, 2003, 4:30 PM CST for 28 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 5, 2003, 4:30 PM CST (22:30 UTC)
Expired
Apr 5, 2003, 10:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 28 counties

Archer County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Fannin County, TX, Grayson County, TX, Henderson County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Stephens County, TX, Tarrant County, TX, Van Zandt County, TX, Wichita County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 94 km from the middle of the area, began a volume at 22:32 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

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

IssuedProductOfficeCountiesLasted
Apr 5, 5:05 PM CSTTornado WarningFWDStephens, Young40 min
Apr 5, 5:45 PM CSTTornado WarningFWDJack, Palo Pinto, Stephens, Young45 min
Apr 5, 6:29 PM CSTTornado WarningFWDPalo Pinto, Parker61 min
Apr 5, 6:34 PM CSTSevere Thunderstorm WarningFWDJack, Young56 min
Apr 5, 6:52 PM CSTTornado WarningFWDParker, Tarrant53 min
Apr 5, 7:20 PM CSTFlash Flood WarningFWDTarrant4 hr
Apr 5, 7:25 PM CSTSevere Thunderstorm WarningFWDJack50 min
Apr 5, 7:40 PM CSTSevere Thunderstorm WarningOUNWichita, Wilbarger50 min
Apr 5, 7:44 PM CSTTornado WarningFWDParker, Tarrant61 min
Apr 5, 8:07 PM CSTSevere Thunderstorm WarningOUNArcher, Baylor53 min
Apr 5, 8:09 PM CSTTornado WarningFWDDallas, Tarrant51 min
Apr 5, 8:16 PM CSTFlash Flood WarningFWDDallas4 hr
Apr 5, 8:20 PM CSTSevere Thunderstorm WarningFWDParker, Wise55 min
Apr 5, 8:33 PM CSTSevere Thunderstorm WarningOUNClay, Wichita42 min
Apr 5, 8:46 PM CSTSevere Thunderstorm WarningFWDCollin59 min
Apr 5, 8:59 PM CSTSevere Thunderstorm WarningFWDDallas, Rockwall46 min
Apr 5, 9:06 PM CSTSevere Thunderstorm WarningFWDDenton, Tarrant, Wise54 min
Apr 5, 9:12 PM CSTSevere Thunderstorm WarningOUNClay63 min
Apr 5, 9:25 PM CSTSevere Thunderstorm WarningFWDMontague65 min
Apr 5, 9:32 PM CSTSevere Thunderstorm WarningFWDHunt58 min
Apr 5, 9:42 PM CSTSevere Thunderstorm WarningFWDCollin, Dallas, Rockwall63 min
Apr 5, 9:58 PM CSTSevere Thunderstorm WarningFWDDenton47 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

Fort Worth, TX (KFWD), launched 12:00Z, 10.5 hours before the alert went out and 69 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 12:00Z on 2003-04-05Temperature 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, Fort Worth, TX at 12:00Z on 2003-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 277 square meters per square second.1939587897Sfc1 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
1337 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
277 m²/s²
0-3 km storm-relative helicity
364 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 052233
SEL3
SPC WW 052230
TXZ000-060400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 93
STORM PREDICTION CENTER NORMAN OK
430 PM CST SAT APR 5 2003

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

   NORTHCENTRAL TEXAS                              

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 430 PM UNTIL
1000 PM CST.

 ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
 
DAMAGING TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 55 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 55 MILES SOUTHWEST OF WICHITA FALLS TEXAS TO
80 MILES EAST OF DALLAS 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...  CONTINUE...WW 92...

DISCUSSION...E/W WARM FRONT SHIFTING NWD THRU NRN TX WITH MOIST AND
MODERATELY UNSTABLE AIRMASS TO THE S.  STRONG VEERING SHEAR
PROFILES VICINTY OF WARM FRONT COUPLED WITH STEEP LAPSE RATES HAVE
CREATED A VERY FAVORABLE ENVIRONMENT FOR TORNADIC SUPERCELLS. 
CURRENTLY INTENSE SUPERCELL LOCATED  OVER HASKELL COUNTY WILL
CONTINUE EWD VICINITY WARM FRONT WITH INCREASING TORNADO POTENTIAL
AS IT MOVES INTO THIS VERY FAVORABLE ENVIRONMENT. ADDITIONAL SEVERE
THUNDERSTORMS ARE LIKELY TO DEVELOP VICINITY AND N OF WARM FRONT
THRU THE EVENING. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. 
MEAN STORM MOTION VECTOR 27030.


...HALES

341,0991 333,0952 320,0952 323,0991

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 5, 12:21 PM CSTMesoscale DiscussionSPCBaylor, Borden, Briscoe, Callahan, Childress, Coke and 27 more3 hr
Apr 5, 1:50 PM CSTTornado WatchSPCBaylor, Briscoe, Callahan, Childress, Coleman, Cottle and 22 more5 hr
Apr 5, 3:48 PM CSTMesoscale DiscussionSPCArcher, Baylor, Briscoe, Callahan, Childress, Clay and 39 more117 min

Nearby

Tornado Watches in Texas, 2003Every tornado 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; radar from the NEXRAD Level II archive.