Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 41, NWS Austin/San Antonio, TX

July 27, 2005Bexar County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 27, 2005, 8:12 PM CDT for Bexar County, Texas. It was in force for 3 hr. 4 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
Jul 27, 2005, 8:12 PM CDT (01:12 UTC)
Expired
Jul 27, 2005, 11:15 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Bexar County, TX

The radar

The Austin/San Antonio radar (KEWX), 44 km from the middle of the area, began a volume at 01:16 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
Jul 27, 9:40 PM CDTFLASH FLOODSan Antonio, TXOVERBROOK DR AT MCNEEL CLOSED.
Jul 27, 9:40 PM CDTFLASH FLOODSan Antonio, TXWURZBACH RD AT TIMBER HILL CLOSED.
Jul 27, 9:41 PM CDTFLASH FLOODSan Antonio, TXLAVEN DR AT CULEBRA CLOSED.
Jul 27, 9:41 PM CDTFLASH FLOODSan Antonio, TXPRUE RD AT WOODBRIDGE CLOSED.

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

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.2 hours before the alert went out and 232 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, Del Rio, TX at 00:00Z on 2005-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2453 joules per kilogram.LCLEL10008507005003002001001 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, Del Rio, TX at 00:00Z on 2005-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
2453 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1710 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
-16 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 
WGUS54 KEWX 280114
FFWEWX
TXC029-280415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
812 PM CDT WED JUL 27 2005

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTY...  

BEXAR.

* UNTIL 1115 PM CDT

* AT 806 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* THE MOST HEAVILY IMPACTED AREA WILL BE THE WEST AND NORTHWESTERN 
PORTIONS OF SAN ANTONIO.  HOWEVER...FURTHER DEVELOPMENT OF 
THUNDERSTORMS CAN BE EXPECTED AND FLASH FLOODING MAY IMPACT OTHER 
AREAS OF BEXAR COUNTY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE AREAS.

FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.

LAT...LON 2925 9880 2969 9881 2972 9878 2976 9855
      2971 9844 2975 9842 2973 9835 2973 9835
      2971 9838 2962 9836 2956 9826 2957 9826
      2950 9819 2948 9813 2911 9842

$$
2 follow-up statements
000 
WGUS74 KEWX 280126
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
822 PM CDT WED JUL 27 2005

TXC029-280415-
BEXAR TX-
822 PM CDT WED JUL 27 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1115 PM CDT FOR BEXAR
COUNTY...

AT 820 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THE POSSIBILITY OF FLASH FLOODING OVER WESTERN AND NORTH 
WESTERN SAN ANTONIO.  WHILE FLASH FLOODING IS MOST LIKELY IN THIS 
AREA IT IS STILL POSSIBLE FOR OTHER AREAS IN BEXAR COUNTY TO 
EXPERIENCE FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE AREAS.

FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.

LAT...LON 2925 9880 2969 9881 2972 9878 2976 9855
      2971 9844 2975 9842 2973 9836 2973 9835
      2971 9838 2962 9836 2956 9826 2957 9826
      2950 9819 2948 9813 2911 9842

$$
000 
WGUS74 KEWX 280345
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1039 PM CDT WED JUL 27 2005

TXC029-280415-
BEXAR TX-
1039 PM CDT WED JUL 27 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1115 PM CDT FOR BEXAR
COUNTY...

THE HEAVIEST OF THE RAINFALL OVER BEXAR COUNTY HAS ENDED.  
HOWEVER...RUNOFF WILL STILL CAUSE SOME MINOR FLOODING IN SOME AREAS 
OF WEST AND NORTHWEST BEXAR COUNTY.  IN ADDITION...THERE ARE STILL 
SOME ROADS CLOSED IN NORTHWEST SAN ANTONIO DUE TO FLOODING.  

MOTORISTS SHOULD CONTINUE TO EXERCISE CAUTION AS IT IS MORE 
DIFFICULT AT NIGHT TO DETERMINE IF ROADS ARE FLOODED.  DO NOT 
ATTEMPT TO DRIVE ACROSS ROADS THAT ARE FLOODED.  THE WATER DEPTH MAY 
BE TOO GREAT TO ALLOW YOUR VEHICLE TO PASS SAFELY.


LAT...LON 2925 9880 2969 9881 2972 9878 2976 9855
      2971 9844 2975 9842 2973 9836 2973 9835
      2971 9838 2962 9836 2956 9826 2957 9826
      2950 9819 2948 9813 2911 9842

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 9:47 PM CDTFlash Flood WarningEWXEdwards, Real3 hr
Jul 27, 10:18 PM CDTFlash Flood WarningEWXTravis, Williamson3 hr

Nearby

Flash Flood Warnings in Texas, 2005Every flash flood warning in 2005

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.