Alert archive / Texas / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 430
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 10:26 PM CDT | Severe Thunderstorm Warning | FWD | Hunt | 49 min |
| May 24, 10:33 PM CDT | Severe Thunderstorm Warning | FWD | Kaufman, Rockwall | 72 min |
| May 24, 10:42 PM CDT | Severe Thunderstorm Warning | FWD | Collin | 63 min |
| May 24, 11:12 PM CDT | Severe Thunderstorm Warning | FWD | Van Zandt | 63 min |
| May 24, 11:38 PM CDT | Severe Thunderstorm Warning | FWD | Collin | 67 min |
| May 24, 11:41 PM CDT | Severe Thunderstorm Warning | FWD | Kaufman | 64 min |
| May 25, 12:08 AM CDT | Severe Thunderstorm Warning | FWD | Van Zandt | 67 min |
| May 25, 12:15 AM CDT | Severe Thunderstorm Warning | FWD | Dallas | 45 min |
| May 25, 12:15 AM CDT | Severe Thunderstorm Warning | FWD | Hunt, Rockwall | 60 min |
| May 25, 12:20 AM CDT | Severe Thunderstorm Warning | FWD | Henderson | 55 min |
| May 25, 12:33 AM CDT | Severe Thunderstorm Warning | FWD | Denton | 57 min |
| May 25, 12:48 AM CDT | Flash Flood Warning | FWD | Dallas | 3 hr |
| May 25, 1:17 AM CDT | Severe Thunderstorm Warning | FWD | Henderson | 58 min |
| May 25, 1:26 AM CDT | Severe Thunderstorm Warning | FWD | Denton | 49 min |
| May 25, 3:58 AM CDT | Flash Flood Warning | FWD | Dallas | 3 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.
- 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
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 324,0980SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 8:22 PM CDT | Mesoscale Discussion | SPC | Archer, Armstrong, Bailey, Baylor, Briscoe, Carson and 48 more | 23 min |
| May 24, 8:40 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Armstrong, Baylor, Briscoe, Castro, Childress and 30 more | 5 hr |
| May 24, 9:32 PM CDT | Mesoscale Discussion | SPC | Collin, Cooke, Delta, Denton, Fannin, Franklin and 7 more | 118 min |
| May 24, 10:05 PM CDT | Mesoscale Discussion | SPC | Archer, Armstrong, Baylor, Briscoe, Childress, Clay and 26 more | 85 min |
| May 24, 11:32 PM CDT | Mesoscale Discussion | SPC | Anderson, Archer, Baylor, Childress, Clay, Collin and 30 more | 118 min |
| May 25, 1:11 AM CDT | Mesoscale Discussion | SPC | Anderson, Archer, Baylor, Clay, Collin, Cooke and 32 more | 2 hr |
| May 25, 1:35 AM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Cherokee, Clay, Collin, Cooke and 28 more | 6 hr |
| May 25, 3:42 AM CDT | Mesoscale Discussion | SPC | Clay, Collin, Cooke, Dallas, Denton, Ellis and 10 more | 2 hr |
| May 25, 1:10 PM CDT | Mesoscale Discussion | SPC | Andrews, Crane, Crockett, Ector, Gaines, Loving and 9 more | 95 min |
| May 25, 4:20 PM CDT | Mesoscale Discussion | SPC | Culberson, Loving, Pecos, Reeves, Ward, Winkler | 85 min |
| May 25, 4:35 PM CDT | Severe Thunderstorm Watch | SPC | Brewster, Crane, Loving, Pecos, Reeves, Terrell and 2 more | 6 hr |
| May 25, 5:06 PM CDT | Mesoscale Discussion | SPC | Bell, Burnet, Crockett, Culberson, Falls, Houston and 18 more | 114 min |
| May 25, 6:19 PM CDT | Mesoscale Discussion | SPC | Concho, Crockett, Edwards, Irion, Kerr, Kimble and 9 more | 86 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.