Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 113, NWS Austin/San Antonio, TX

April 25, 2007Caldwell County, Gonzales County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 25, 2007, 1:23 AM CDT for Caldwell County, Gonzales County, Texas. It was in force for 53 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 25, 2007, 1:23 AM CDT (06:23 UTC)
Expired
Apr 25, 2007, 2:16 AM CDT
In force
53 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Caldwell County, TX, Gonzales County, TX

The radar

The Austin/San Antonio radar (KEWX), 48 km from the middle of the area, began a volume at 06:26 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.

What was reported inside it

TimeReportWhereRemark
Apr 25, 1:25 AM CDTTSTM WND DMG1 S Lockhart, TX*** 1 INJ *** NUMBER OF LARGE TREES DOWN. WIND DAMAGE TO HOMES. ROOF BLOWN OFF A HOME. 2 BLOCKS N OF FM 20.
Apr 25, 1:30 AM CDTTSTM WND DMG3 S Lockhart, TXNUMEROUS POWER LINES DOWN, SEVERAL HOUSE WERE BLOWN DOWN, SEVERAL ROOFS BLOWN OFF.
Apr 25, 1:38 AM CDTTSTM WND DMG10 Sw Gonzales, TXWIND DAMAGE TO BARN IN COST, TX.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 24, 10:53 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 6.4 hours before the alert went out and 207 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 00:00Z on 2007-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2037 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 00:00Z on 2007-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 square meters per square second.19395878Sfc1 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
2037 J/kg
Mixed-layer CIN
-328 J/kg
Mixed-layer LCL
785 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 250623
SVREWX
TXC055-177-250730-
/O.NEW.KEWX.SV.W.0113.070425T0623Z-070425T0730Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
123 AM CDT WED APR 25 2007

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITIES OF...LULING...LOCKHART...
  GONZALES COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITY OF GONZALES...

* UNTIL 230 AM CDT

* AT 117 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETECTED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 12 MILES WEST OF PALMETO
  TO 10 MILES SOUTH OF SMILEY...OR ALONG A LINE EXTENDING FROM 10
  MILES EAST OF SEGUIN TO 12 MILES NORTHWEST OF YORKTOWN...AND MOVING
  EAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  LULING AND PALMETO BY 130 AM CDT...
  CHEAPSIDE BY 135 AM CDT...
  GONZALES BY 140 AM CDT...
  WAELDER BY 150 AM CDT...

THESE THUNDERSTORMS ARE CAPABLE OF QUICKLY PRODUCING TORNADOES. 
PREPARE IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY 
CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A 
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CDT WEDNESDAY MORNING 
FOR SOUTH CENTRAL TEXAS.

LAT...LON 2938 9724 2912 9762 2925 9774 2942 9780
      2966 9764 2972 9777 2975 9777 2980 9784
      2984 9785 2998 9755 2973 9727 2960 9721
      2952 9721

$$
2 follow-up statements
000 
WWUS54 KEWX 250632
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
132 AM CDT WED APR 25 2007

TXC055-177-250730-
/O.CON.KEWX.SV.W.0113.000000T0000Z-070425T0730Z/
CALDWELL TX-GONZALES TX-
132 AM CDT WED APR 25 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM CDT
FOR GONZALES AND CALDWELL COUNTIES...

AT 126 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM FENTRESS
TO 8 MILES SOUTHEAST OF SMILEY...OR ALONG A LINE EXTENDING FROM 7
MILES SOUTHWEST OF LOCKHART TO 14 MILES NORTH OF YORKTOWN...MOVING
EAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  GONZALES AND CHEAPSIDE BY 140 AM CDT...
  WAELDER BY 155 AM CDT...

THESE THUNDERSTORMS ARE CAPABLE OF QUICKLY PRODUCING TORNADOES. 
PREPARE IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY 
CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A 
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CDT WEDNESDAY MORNING 
FOR SOUTH CENTRAL TEXAS.

LAT...LON 2938 9724 2912 9762 2925 9774 2942 9780
      2966 9764 2972 9777 2975 9777 2980 9784
      2984 9785 2998 9755 2973 9727 2960 9721
      2952 9721

$$
000 
WWUS54 KEWX 250716
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
216 AM CDT WED APR 25 2007

TXC055-177-250726-
/O.CAN.KEWX.SV.W.0113.000000T0000Z-070425T0730Z/
CALDWELL TX-GONZALES TX-
216 AM CDT WED APR 25 2007

...THE SEVERE THUNDERSTORM WARNING FOR GONZALES AND CALDWELL COUNTIES
IS CANCELLED...

THUNDERSTORMS WILL CONTINUE OVER PARTS OF GONZALES AND CALDWELL 
COUNTIES THROUGH AROUND 3 AM CDT. HOWEVER...THE SEVERE PORTION OF 
THESE THUNDERSTORMS HAVE MOVE EAST OF THE AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CDT WEDNESDAY MORNING
FOR SOUTH CENTRAL TEXAS.

LAT...LON 2938 9724 2912 9762 2925 9774 2942 9780
      2966 9764 2972 9777 2975 9777 2980 9784
      2984 9785 2998 9755 2973 9727 2960 9721
      2952 9721

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:33 PM CDTTornado WarningEWXDimmit57 min
Apr 24, 7:37 PM CDTSevere Thunderstorm WarningEWXZavala53 min
Apr 24, 8:26 PM CDTTornado WarningEWXDimmit34 min
Apr 24, 8:33 PM CDTSevere Thunderstorm WarningEWXFrio, Zavala57 min
Apr 24, 9:11 PM CDTSevere Thunderstorm WarningEWXUvalde64 min
Apr 24, 9:29 PM CDTSevere Thunderstorm WarningEWXMaverick31 min
Apr 24, 9:46 PM CDTSevere Thunderstorm WarningEWXUvalde, Zavala59 min
Apr 24, 10:07 PM CDTSevere Thunderstorm WarningEWXMaverick53 min
Apr 24, 10:21 PM CDTFlash Flood WarningEWXMaverick, Uvalde, Zavala4 hr
Apr 24, 11:00 PM CDTSevere Thunderstorm WarningEWXMaverick46 min
Apr 24, 11:11 PM CDTSevere Thunderstorm WarningEWXMedina64 min
Apr 24, 11:18 PM CDTSevere Thunderstorm WarningEWXDimmit57 min
Apr 24, 11:43 PM CDTSevere Thunderstorm WarningEWXFrio48 min
Apr 24, 11:51 PM CDTSevere Thunderstorm WarningEWXAtascosa, Bexar54 min
Apr 25, 12:06 AM CDTFlash Flood WarningEWXBexar, Medina114 min
Apr 25, 12:08 AM CDTTornado WarningEWXAtascosa, Bexar37 min
Apr 25, 12:21 AM CDTSevere Thunderstorm WarningEWXComal, Guadalupe54 min
Apr 25, 12:38 AM CDTSevere Thunderstorm WarningEWXBexar, Wilson48 min
Apr 25, 1:36 AM CDTSevere Thunderstorm WarningEWXFayette, Lavaca54 min
Apr 25, 1:46 AM CDTTornado WarningEWXFayette, Gonzales29 min
Apr 25, 2:03 AM CDTTornado WarningEWXLavaca33 min
Apr 25, 2:06 AM CDTSevere Thunderstorm WarningEWXBastrop24 min
Apr 25, 2:53 AM CDTSevere Thunderstorm WarningEWXAtascosa37 min
Apr 25, 3:54 AM CDTSevere Thunderstorm WarningEWXDeWitt36 min
Apr 25, 4:26 AM CDTSevere Thunderstorm WarningEWXDeWitt19 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007Every severe thunderstorm warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.