Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 38, NWS Austin/San Antonio, TX

July 23, 2005Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 23, 2005, 12:20 PM CDT for Real County, Texas. It was in force for 3 hr. 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 23, 2005, 12:20 PM CDT (17:20 UTC)
Expired
Jul 23, 2005, 3:15 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Real County, TX

The radar

The Laughlin AFB radar (KDFX), 73 km from the middle of the area, began a volume at 17:20 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

Del Rio, TX (KDRT), launched 12:00Z, 5.3 hours before the alert went out and 107 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 12:00Z on 2005-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1361 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, Del Rio, TX at 12:00Z on 2005-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -51 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
1361 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
929 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-51 m²/s²
0-3 km storm-relative helicity
-19 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 231721
FFWEWX
TXC385-232015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1220 PM CDT SAT JUL 23 2005

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  REAL

* UNTIL 315 PM CDT

* AT 1218 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED   VERY HEAVY RAIN FROM A THUNDERSTORM OVER NORTHERN AND 
CENTRAL REAL COUNTY. LITTLE MOVEMENT WAS INDICATED.

HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...
COUNTRY ROADS...AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

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 2968 9996 2968 9968 3001 9976 3004 9997

$$
2 follow-up statements
000 
WGUS74 KEWX 231901
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
159 PM CDT SAT JUL 23 2005

TXC385-232015-
REAL TX-
159 PM CDT SAT JUL 23 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 315 PM CDT FOR REAL
COUNTY...

AT 155 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SHOWERS AND THUNDERSTORMS ACROSS CENTRAL AND SOUTHERN REAL 
COUNTY. THE HEAVY RAINFALL HAS DIMINISHED...BUT THE THREAT FOR WATER 
TO RUN OFF FROM EARLIER RAINFALL CONTINUES. 

HEAVY RAINFALL WILL CAUSE FLASH FLOODING OVER SMALL CREEKS AND
STREAMS...URBAN AREAS...HIGHWAYS...STREETS...UNDERPASSES AND POORLY
DRAINED 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 2968 9996 2968 9968 3001 9976 3004 9997

$$
000 
WGUS74 KEWX 232023
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
322 PM CDT SAT JUL 23 2005

TXC385-232032-
REAL TX-
322 PM CDT SAT JUL 23 2005

...THE FLASH FLOOD WARNING FOR REAL COUNTY EXPIRED AT 315 PM CDT...

DOPPLER RADAR CONTINUED TO INDICATE ONLY LIGHT TO MODERATE RAINFALL 
OVER REAL COUNTY. REMEMBER THAT WATER MAY STILL BE DRAINING AND 
RUNNING OFF FROM EARLIER STORMS. EXERCISE EXTREME CAUTION IN LOW 
LYING AREAS AND LOW WATER CROSSING. TURN AROUND DONT DROWN.

LAT...LON 2968 9996 2968 9968 3001 9976 3004 9997

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 12:41 PM CDTFlash Flood WarningEWXLlano3 hr
Jul 23, 1:27 PM CDTFlash Flood WarningEWXGillespie3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.