Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 142, NWS Austin/San Antonio, TX

July 24, 2003DeWitt County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 24, 2003, 6:16 PM CDT for DeWitt County, Texas. It was in force for 59 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
Jul 24, 2003, 6:16 PM CDT (23:16 UTC)
Expired
Jul 24, 2003, 7:15 PM CDT
In force
59 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County DeWitt County, TX

The radar

The Austin/San Antonio radar (KEWX), 96 km from the middle of the area, began a volume at 23:18 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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 nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.3 hours before the alert went out and 153 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, Corpus Christi, TX at 12:00Z on 2003-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2417 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, Corpus Christi, TX at 12:00Z on 2003-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
2417 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
703 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
57 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 
WUUS54 KEWX 242316
SVRSAT
TXC123-250015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...COR
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
614 PM CDT THU JUL 24 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  DEWITT

* UNTIL 715 PM CDT

* AT 614 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 9 MILES EAST OF HOCHHEIM...OR ABOUT OVER       
  YOAKUM...MOVING WEST AT 30 MPH. THIS STORM HAS THE CAPABILITY      
  OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...VERY HEAVY RAIN  
  AND FREQUENT CLOUD TO GROUND LIGHTNING.

* THE SEVERE THUNDERSTORM WILL BE...
  6 MILES SOUTH OF HOCHHEIM AT 625 PM
  OVER WESTHOFF AT 645 PM

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.


LAT...LON 2913 9703 2936 9724 2902 9772 2889 9755

$$

What forecasters said that day

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

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 24, 3:15 PM CDT, 3 hours 1 minute earlier.

Area forecast discussion, Jul 24, 3:15 PM CDT, 3 hours 1 minute before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
315 PM CDT THU JUL 24 2003

500 HPA TROF OVR SE U.S...WITH ASSOC S/W TROF MOVG OVER EAST PART OF
S CNTRL TX THIS AFTN AND EVE...FCST TO LIFT NE FRIDAY AND CAUSE
RIDGE ALOFT CNTRD NEAR 4 CORNERS TO BUILD SLIGHTLY EAST OVER S CNTRL
TEXAS ON FRIDAY.  SOME MARGINAL INSTABLILITY POSSIBLE OVER FAR EAST
AND SOUTHEAST PART OF S CNTRL TEXAS ON FRIDAY...WHERE ISOLD SHRA
OR TSRA POSSIBLE...WITH LIMITNG POPS FURTHER WEST.

ON SATURDAY THROUGH MONDAY...FORECASTS CONT TO SHOW WEAK WX SYSTEM
MOVG TO THE SOUTH AND THEN SOUTHWEST OF AREA BY LATE SUNDAY OR
MONDAY.  THIS PATTERN WILL ALLOW FOR DAYTIME HEATING SHRA TO FORM
OVER THE AREA IN AN ISOLD TO WDLY SCT PATTERN.  THE TUESDAY WX
PATTERN SHOWS POSSIBLE SHRA OVER WEST AND NORTH PARTS OF THE
AREA...AHEAD OF NEXT WEATHER SYSTEM COMING FROM THE NORTH.  THIS WX
SYSTEM MAY BE ACCOMPANIED BY WEAK COOL FRONT OR MESO BOUNDARY NEXT
WEDNESDAY...SO WILL SHOW CHC OF SHRA OR TSRA FOR NEXT WED.  THIS
PATTERN MAY LINGER OVER PART OF THE AREA THURSDAY OF NEXT
WEEK...WITH HIGHEST CHC OF RAIN OVER EAST PART OF AREA AND LOWER
CHC OF RAIN WEST.

PRELIMS...
AUS  073 095 073 095 070 01020
DRT  076 096 077 097 076 20000
SAT  075 092 076 093 073 10020

.EWX...NONE.

08/18
Hazardous weather outlook, Jul 24, 5:54 AM CDT, 12 hours 22 minutes before
TXZ171>173-183>194-202>209-217>225-228-251100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
554 AM CDT THU JUL 24 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY...NO HAZARDOUS WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 24, 5:28 PM CDTSevere Thunderstorm WarningEWXLavaca62 min
Jul 24, 6:15 PM CDTSevere Thunderstorm WarningEWXDeWitt60 min

Nearby

Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm warning 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.