Alert archive / Texas / Tornado Warnings in 2003

Tornado Warning 10, NWS San Angelo, TX

April 23, 2003Throckmorton County, Texas

NWS San Angelo, TX issued this tornado warning at Apr 23, 2003, 2:37 PM CDT for Throckmorton County, Texas. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 23, 2003, 2:37 PM CDT (19:37 UTC)
Expired
Apr 23, 2003, 3:30 PM CDT
In force
53 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Throckmorton County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 23, 11:50 AM CDTTornado WatchSPC6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 7.6 hours before the alert went out and 189 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 2003-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 245 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, Fort Worth, TX at 12:00Z on 2003-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 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
245 J/kg
Mixed-layer CIN
-295 J/kg
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

400 
WFUS54 KSJT 231937
TORSJT
TXC447-232030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
236 PM CDT WED APR 23 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  THROCKMORTON COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 330 PM CDT

* AT 231 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH STRONG ROTATION CAPABLE OF PRODUCING A TORNADO AT
  ANY TIME 26 MILES WEST OF THROCKMORTON...OR ABOUT 11 MILES
  SOUTHEAST OF HASKELL...MOVING EAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   THROCKMORTON AT 320 PM CDT
   WOODSON AT 325 PM CDT

A TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER.

LAT...LON 3337 9944 3299 9946 3300 9899 3336 9898

$$

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Angelo, TX wrote its last area forecast discussion before this tornado warning went out at Apr 23, 2:35 PM CDT, 2 minutes earlier.

Area forecast discussion, Apr 23, 2:35 PM CDT, 2 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
235 PM CDT WED APR 23 2003

BUSY AFTERNOON SO NOT MUCH DISCUSSION

SEVERE WEATHER WILL MOVE OUT...LEAVING CLEAR SKIES AND SEASONAL
TEMPS.

FIRST PERIOD WILL CONTEND WITH SOME LEFT OVER PRECIP.

PRELIM CCF...

ABI 053/083/050/081 -000
SJT 053/084/052/084 0000
JCT 052/083/050/084 1000

.SJT...NONE.

25
Hazardous weather outlook, Apr 23, 5:44 AM CDT, 8 hours 53 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-241045-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
544 AM CDT WED APR 23 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

THERE IS A MODERATE RISK FOR SEVERE THUNDERSTORMS ACROSS THE EASTERN
PORTION OF THE BIG COUNTRY AND ALL OF THE HEARTLAND COUNTIES TODAY.
THIS MODERATE RISK AREA IS NORTH AND EAST OF A LINE FROM ASPERMONT
TO JUST WEST OF ABILENE AND BALLINGER TO BRADY AND SAN SABA.
ELSEWHERE THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TO THE EAST
OF A LINE FROM ROTAN TO ROBERT LEE...SAN ANGELO...ELDORADO AND
SONORA. THE DRYLINE WILL MOVE THROUGH THE AREA TODAY. THIS IN
COMBINATION WITH A STRONG UPPER LEVEL STORM SYSTEM WILL CAUSE
SHOWERS AND THUNDERSTORMS...SOME OF WHICH MAY BE SEVERE...ESPECIALLY
IN THE MODERATE RISK AREA. THE MAIN THREAT WILL BE VERY LARGE HAIL
AND DAMAGING WINDS. THERE WILL BE SUFFICIENT SHEAR FOR THUNDERSTORMS
TO PRODUCE TORNADOES...ESPECIALLY OVER THE MODERATE RISK AREA.
INTERESTED PERSONS WILL WANT TO PAY ATTENTION TO LATER FORECAST
CONCERNING THIS THUNDERSTORM EVENT.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS MORNING INTO THE AFTERNOON.

27/BRAZZELL

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 12:36 PM CDTSevere Thunderstorm WarningSJTFisher39 min
Apr 23, 1:04 PM CDTTornado WarningSJTFisher41 min
Apr 23, 1:12 PM CDTSevere Thunderstorm WarningSJTSterling63 min
Apr 23, 1:33 PM CDTSevere Thunderstorm WarningSJTNolan42 min
Apr 23, 1:49 PM CDTSevere Thunderstorm WarningSJTCoke, Tom Green56 min
Apr 23, 1:51 PM CDTTornado WarningSJTHaskell54 min
Apr 23, 1:55 PM CDTTornado WarningSJTFisher, Jones65 min
Apr 23, 2:01 PM CDTSevere Thunderstorm WarningSJTCrockett59 min
Apr 23, 2:33 PM CDTSevere Thunderstorm WarningSJTTaylor42 min
Apr 23, 2:47 PM CDTSevere Thunderstorm WarningSJTRunnels58 min
Apr 23, 2:59 PM CDTTornado WarningSJTJones, Shackelford61 min
Apr 23, 3:00 PM CDTSevere Thunderstorm WarningSJTCrockett60 min
Apr 23, 3:04 PM CDTSevere Thunderstorm WarningSJTSchleicher56 min
Apr 23, 3:14 PM CDTSevere Thunderstorm WarningSJTCallahan46 min
Apr 23, 3:16 PM CDTSevere Thunderstorm WarningSJTTaylor29 min
Apr 23, 3:31 PM CDTTornado WarningSJTThrockmorton44 min
Apr 23, 3:41 PM CDTTornado WarningSJTCrockett, Sutton64 min
Apr 23, 3:43 PM CDTSevere Thunderstorm WarningSJTColeman62 min
Apr 23, 3:59 PM CDTTornado WarningSJTMenard, Schleicher61 min
Apr 23, 4:00 PM CDTSevere Thunderstorm WarningSJTCallahan60 min
Apr 23, 4:01 PM CDTSevere Thunderstorm WarningSJTShackelford59 min
Apr 23, 4:36 PM CDTSevere Thunderstorm WarningSJTBrown54 min
Apr 23, 4:44 PM CDTSevere Thunderstorm WarningSJTColeman46 min
Apr 23, 4:45 PM CDTTornado WarningSJTCrockett, Sutton60 min
Apr 23, 4:59 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels46 min
Apr 23, 5:30 PM CDTSevere Thunderstorm WarningSJTBrown30 min
Apr 23, 5:42 PM CDTSevere Thunderstorm WarningSJTRunnels48 min
Apr 23, 5:56 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman79 min
Apr 23, 6:26 PM CDTSevere Thunderstorm WarningSJTBrown79 min

Nearby

Tornado Warnings in Texas, 2003Every tornado warning in 2003Tornadoes 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.