Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 424, NWS Austin/San Antonio, TX

July 26, 2007Fayette County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 26, 2007, 6:38 AM CDT for Fayette County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 26, 2007, 6:38 AM CDT (11:38 UTC)
Expired
Jul 26, 2007, 10:45 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Fayette County, TX

The radar

The Ft Hood radar (KGRK), 104 km from the middle of the area, began a volume at 11:40 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.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 11.6 hours before the alert went out and 242 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 2007-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1061 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2007-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
1061 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 261139
FFWEWX
TXC149-261545-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
638 AM CDT THU JUL 26 2007

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FAYETTE COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITIES OF...SCHULENBURG...LA GRANGE...FLATONIA...

* UNTIL 1045 AM CDT

* AT 635 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
  RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
  SHOWERS AND THUNDERSTORM TRAINING NORTHWARD OVER FAYETTE COUNTY.
  RAINFALL AMOUNTS OF ONE TO THREE INCHES EXPECTED OVER THE NEXT 
  COUPLE HOURS WHICH WILL CAUSE FLASH FLOODING.   

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROUND
  TOP AND FAYETTEVILLE

WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED
AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER RADIO OR
LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.

LAT...LON 2964 9691 2997 9662 3015 9675 2997 9705
      2978 9721 2965 9716

$$
3 follow-up statements
000 
WGUS74 KEWX 261230
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
727 AM CDT THU JUL 26 2007

TXC149-261545-
FAYETTE TX-
727 AM CDT THU JUL 26 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
FAYETTE COUNTY...

AT 724 AM CDT...NATIONAL WEATHER SERVICE RADAR CONTINUE TO INDICATE  
SHOWERS AND THUNDERSTORMS WITH BRIEF HEAVY RAIN OVER FAYETTE COUNTY.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES CAN BE EXPECTED ON 
ALREADY SATURATED SOILS...SO RUNOFF AND FLASH FLOODING WILL BE 
QUICK.   

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROUND TOP...
LA GRANGE AND FAYETTEVILLE

DO NOT DRIVE WHERE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES...INCLUDING SUVS AND PICKUPS. TURN
AROUND DONT DROWN.

LAT...LON 2964 9691 2997 9662 3015 9675 2997 9705
      2978 9721 2965 9716

$$
000 
WGUS74 KEWX 261426
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
924 AM CDT THU JUL 26 2007

TXC149-261545-
FAYETTE TX-
924 AM CDT THU JUL 26 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
FAYETTE COUNTY...

AT 921 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED 
PATCHY LIGHT RAINS ACROSS FAYETTE COUNTY. RAINFALL RATES OF LESS 
THAN ONE TENTH INCH WERE NOTED. HOWEVER...FLASH FLOODING CAN STILL 
BE EXPECTED FROM EARLIER HEAVY RAINS UP TO 1.5 INCHES IN THE ENGLE 
TO WEST POINT TO WINCHESTER AREAS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROUND TOP...
LA GRANGE AND FAYETTEVILLE

WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.

LAT...LON 2964 9691 2997 9662 3015 9675 2997 9705
      2978 9721 2965 9716

$$
000 
WGUS74 KEWX 261545
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1044 AM CDT THU JUL 26 2007

TXC149-261554-
FAYETTE TX-
1044 AM CDT THU JUL 26 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1045 AM CDT FOR FAYETTE
COUNTY...

AT 1043 AM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED ONLY A FEW 
LIGHT SHOWERS ACROSS FAYETTE COUNTY. THE THREAT FOR FLASH FLOODING 
HAS ENDED. AS A RESULT...THE FLASH FLOOD WARNING WILL BE ALLOWED TO 
EXPIRE. 

LAT...LON 2964 9691 2997 9662 3015 9675 2997 9705
      2978 9721 2965 9716

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 7:28 PM CDTFlash Flood WarningEWXLavaca2 hr
Jul 25, 8:55 PM CDTRiver Flood WarningEWXKarnes3 days
Jul 25, 10:04 PM CDTRiver Flood WarningEWXBexar11 hr
Jul 26, 4:51 AM CDTFlash Flood WarningEWXDeWitt, Lavaca4 hr
Jul 26, 6:15 AM CDTFlash Flood WarningEWXBandera, Real, Uvalde3 hr
Jul 26, 7:49 AM CDTFlash Flood WarningEWXBastrop, Lee3 hr
Jul 26, 8:24 AM CDTFlash Flood WarningEWXTravis, Williamson3 hr
Jul 26, 1:34 PM CDTFlash Flood WarningEWXFrio, Medina3 hr
Jul 26, 4:39 PM CDTFlash Flood WarningEWXTravis2 hr
Jul 26, 4:45 PM CDTFlash Flood WarningEWXBexar2 hr

Nearby

Flash Flood Warnings in Texas, 2007Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.