Alert archive / Texas / Tornado Watches in 2004
Tornado Watch 23
The Storm Prediction Center issued this tornado watch at Mar 4, 2004, 11:50 AM CST for 48 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 4, 2004, 11:50 AM CST (17:50 UTC)
- Expired
- Mar 4, 2004, 5:00 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 48 counties
Bandera County, TX, Bell County, TX, Blanco County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Collin County, TX, Comal County, TX, Comanche County, TX, Coryell County, TX, Dallas County, TX, Denton County, TX, Edwards County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Gillespie County, TX, Hamilton County, TX, Hays County, TX, Hill County, TX, Hood County, TX, Johnson County, TX, Kaufman County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Lampasas County, TX, Limestone County, TX, Llano County, TX, Mason County, TX, Maverick County, TX, McCulloch County, TX, McLennan County, TX, Medina County, TX, Menard County, TX, Milam County, TX, Mills County, TX, Navarro County, TX, Real County, TX, Rockwall County, TX, San Saba County, TX, Somervell County, TX, Tarrant County, TX, Travis County, TX, Uvalde County, TX, Williamson County, TX, Zavala County, TX
Warnings issued inside it
24 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 12:09 PM CST | Severe Thunderstorm Warning | SJT | Kimble, Mason, Menard, Throckmorton | 51 min |
| Mar 4, 12:17 PM CST | Tornado Warning | SJT | McCulloch, Mason | 43 min |
| Mar 4, 12:24 PM CST | Severe Thunderstorm Warning | SJT | Brown | 51 min |
| Mar 4, 12:28 PM CST | Tornado Warning | SJT | Brown | 62 min |
| Mar 4, 12:32 PM CST | Severe Thunderstorm Warning | SJT | San Saba | 58 min |
| Mar 4, 12:58 PM CST | Severe Thunderstorm Warning | FWD | Comanche, Mills | 62 min |
| Mar 4, 1:08 PM CST | Severe Thunderstorm Warning | FWD | Erath | 67 min |
| Mar 4, 1:20 PM CST | Severe Thunderstorm Warning | FWD | Hamilton | 55 min |
| Mar 4, 1:41 PM CST | Severe Thunderstorm Warning | FWD | Bosque, Hood, Somervell | 64 min |
| Mar 4, 1:50 PM CST | Severe Thunderstorm Warning | EWX | Medina | 25 min |
| Mar 4, 2:04 PM CST | Severe Thunderstorm Warning | FWD | Bell, Coryell, McLennan | 56 min |
| Mar 4, 2:16 PM CST | Severe Thunderstorm Warning | FWD | Johnson | 59 min |
| Mar 4, 2:21 PM CST | Severe Thunderstorm Warning | FWD | Tarrant | 54 min |
| Mar 4, 2:27 PM CST | Severe Thunderstorm Warning | FWD | Cooke, Hill | 63 min |
| Mar 4, 2:33 PM CST | Tornado Warning | FWD | Denton | 42 min |
| Mar 4, 2:35 PM CST | Severe Thunderstorm Warning | FWD | Ellis | 55 min |
| Mar 4, 2:37 PM CST | Severe Thunderstorm Warning | FWD | Dallas | 53 min |
| Mar 4, 2:58 PM CST | Severe Thunderstorm Warning | FWD | Bell, Falls, McLennan, Milam | 62 min |
| Mar 4, 3:01 PM CST | Severe Thunderstorm Warning | FWD | Collin, Grayson | 59 min |
| Mar 4, 3:11 PM CST | Severe Thunderstorm Warning | FWD | Limestone, Navarro | 64 min |
| Mar 4, 3:19 PM CST | Tornado Warning | FWD | Ellis | 41 min |
| Mar 4, 3:26 PM CST | Severe Thunderstorm Warning | FWD | Kaufman, Rockwall | 64 min |
| Mar 4, 3:51 PM CST | Severe Thunderstorm Warning | FWD | Milam, Robertson | 54 min |
| Mar 4, 4:13 PM CST | Severe Thunderstorm Warning | FWD | Limestone | 17 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, 5.8 hours before the alert went out and 253 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
- 696 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 649 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 327 m²/s²
- 0-3 km storm-relative helicity
- 350 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 041747
SEL3
SPC WW 041750
TXZ000-042300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 23
NWS STORM PREDICTION CENTER NORMAN OK
1150 AM CST THU MAR 4 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND NORTH CENTRAL TEXAS
EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 1150 AM UNTIL
500 PM CST.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 2 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 75 MILES WEST OF HONDO TEXAS TO 40 MILES EAST
SOUTHEAST 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 22...
DISCUSSION...INTENSE SQUALL LINE HAS DEVELOPED NWRN TX IN ADVANCE OF
VIGOROUS S/WV TROUGH AND 100KT WIND MAX NOW MOVING INTO SWRN TX.
WITH VERY MOIST...UNSTABLE AIR MASS IN WARM SECTOR...POTENTIAL FOR
TORNADIC SUPERCELLS WILL INCREASE ALONG/AHEAD OF SCALL LINE AS IT
MOVES RAPIDLY E/NE ACROSS WATCH AREA THIS AFTERNOON.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24045.
...HALES
303,1002 335,0961 311,0961 280,1002SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 3, 7:03 PM CST | Mesoscale Discussion | SPC | Andrews, Borden, Coke, Crane, Crockett, Dawson and 25 more | 117 min |
| Mar 3, 8:40 PM CST | Severe Thunderstorm Watch | SPC | Andrews, Borden, Cottle, Crane, Crosby, Dawson and 20 more | 5 hr |
| Mar 3, 11:44 PM CST | Mesoscale Discussion | SPC | Andrews, Borden, Crane, Crosby, Dawson, Dickens and 16 more | 2 hr |
| Mar 4, 1:56 AM CST | Mesoscale Discussion | SPC | Archer, Bailey, Baylor, Briscoe, Brown, Castro and 55 more | 94 min |
| Mar 4, 2:00 AM CST | Severe Thunderstorm Watch | SPC | Andrews, Archer, Armstrong, Bailey, Baylor, Borden and 39 more | 5 hr |
| Mar 4, 2:44 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Childress, Clay, Collingsworth, Cottle and 19 more | 3 hr |
| Mar 4, 4:25 AM CST | Tornado Watch | SPC | Callahan, Coke, Coleman, Concho, Crockett, Fisher and 23 more | 6 hr |
| Mar 4, 5:01 AM CST | Mesoscale Discussion | SPC | Andrews, Archer, Armstrong, Bailey, Baylor, Borden and 39 more | 119 min |
| Mar 4, 5:32 AM CST | Mesoscale Discussion | SPC | Callahan, Coke, Coleman, Concho, Crockett, Fisher and 23 more | 118 min |
| Mar 4, 6:55 AM CST | Severe Thunderstorm Watch | SPC | Armstrong, Baylor, Borden, Briscoe, Carson, Childress and 30 more | 6 hr |
| Mar 4, 8:43 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Callahan, Coke, Coleman, Concho and 26 more | 62 min |
| Mar 4, 9:28 AM CST | Mesoscale Discussion | SPC | Cooke, Fannin, Grayson, Lamar, Montague | 62 min |
| Mar 4, 9:45 AM CST | Tornado Watch | SPC | Archer, Baylor, Brown, Callahan, Clay, Coke and 34 more | 5 hr |
| Mar 4, 10:46 AM CST | Mesoscale Discussion | SPC | Atascosa, Bandera, Bell, Bexar, Blanco, Bosque and 27 more | 89 min |
| Mar 4, 11:52 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Brown, Callahan, Clay, Coleman and 17 more | 53 min |
| Mar 4, 11:52 AM CST | Mesoscale Discussion | SPC | Austin, Brazoria, Brazos, Burleson, Chambers, Colorado and 15 more | 113 min |
| Mar 4, 1:02 PM CST | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Jack, Montague, Palo Pinto and 6 more | 88 min |
| Mar 4, 1:25 PM CST | Mesoscale Discussion | SPC | Fannin | 65 min |
| Mar 4, 1:42 PM CST | Mesoscale Discussion | SPC | Bell, Blanco, Bosque, Burnet, Collin, Coryell and 17 more | 63 min |
| Mar 4, 2:05 PM CST | Tornado Watch | SPC | Cooke | 6 hr |
| Mar 4, 2:18 PM CST | Mesoscale Discussion | SPC | Anderson, Bowie, Camp, Cass, Cherokee, Delta and 18 more | 57 min |
| Mar 4, 3:00 PM CST | Tornado Watch | SPC | Anderson, Bowie, Camp, Cass, Cherokee, Delta and 25 more | 6 hr |
| Mar 4, 4:41 PM CST | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Franklin, Gregg, Harrison and 6 more | 2 hr |
Nearby
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.