Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 77, NWS Austin/San Antonio, TX

August 9, 2005Maverick County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 9, 2005, 6:58 PM CDT for Maverick 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
Aug 9, 2005, 6:58 PM CDT (23:58 UTC)
Expired
Aug 9, 2005, 10:00 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Maverick County, TX

The radar

The Laughlin AFB radar (KDFX), 67 km from the middle of the area, began a volume at 00:00 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, 12.0 hours before the alert went out and 93 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 2005-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1667 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 2005-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
1667 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 092359
FFWEWX
TXC323-100300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
658 PM CDT TUE AUG 9 2005

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 1000 PM CDT

* AT 650 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS LOCATED FROM QUEMADO TO EAGLE PASS.
  THESE STORM WERE NEARLY STATIONARY..

* THUNDERSTORMS PRODUCING VERY HEAVY RAIN WILL REMAIN OVER...
  MAINLY RURAL AREAS OF MAVERICK.

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

LAT...LON 2839 10029 2860 10014 2896 10025 2903 10062

$$
3 follow-up statements
000 
WGUS74 KEWX 100029
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
726 PM CDT TUE AUG 9 2005

TXC323-100300-
MAVERICK TX-
726 PM CDT TUE AUG 9 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1000 PM CDT FOR MAVERICK
COUNTY...

AT 720 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MAVERICK 
COUNTY. THE STORMS WERE NEARLY STATIONARY WITH RAINFALL RATES OF 1.5 
INCHES AN HOUR. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM 6 MILES NORTHEAST OF EL INDIO TO 6 MILES EAST OF QUEMADO.

HEAVY RAINFALL WILL CAUSE FLASH FLOODING OVER SMALL CREEKS AND 
STREAMS...URBAN AREAS...HIGHWAYS...STREETS...UNDERPASSES AND POORLY 
DRAINED AREAS.

LAT...LON 2839 10029 2860 10014 2896 10025 2903 10062

$$
000 
WGUS74 KEWX 100127
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
822 PM CDT TUE AUG 9 2005

TXC323-100300-
MAVERICK TX-
822 PM CDT TUE AUG 9 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1000 PM CDT FOR MAVERICK
COUNTY...

AT 816 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE EASTERN 
MAVERICK COUNTY...MOVING EAST AT 15 MPH.  ADDITIONAL THUNDERSTORMS
ACROSS KINNEY COUNTY WERE MOVING SOUTH INTO NORTHERN MAVERICK
COUNTY. RAINFALL RATES WERE ESTIMATED AT 2 INCHES AN HOUR 10 MILES
NORTHEAST OF EL INDIO. 

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.

LAT...LON 2839 10029 2838 10014 2907 10014 2906 10066

$$
000 
WGUS74 KEWX 100257
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
956 PM CDT TUE AUG 9 2005

TXC323-100306-
MAVERICK TX-
956 PM CDT TUE AUG 9 2005

...THE FLASH FLOOD WARNING FOR MAVERICK COUNTY EXPIRES AT 1000 PM
CDT...

LIGHT TO MODERATE RAINFALL CONTINUES ACROSS MAVERICK COUNTY. HOWEVER
NO REPORTS OF FLOODING HAVE BEEN RECEIVED BY LAW ENFORCEMENT. 

LAT...LON 2839 10029 2838 10014 2907 10014 2906 10066

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:10 AM CDTFlash Flood WarningEWXWilliamson3 hr
Aug 9, 9:48 AM CDTFlash Flood WarningEWXLee117 min
Aug 9, 4:53 PM CDTSevere Thunderstorm WarningEWXEdwards67 min
Aug 9, 5:23 PM CDTSevere Thunderstorm WarningEWXVal Verde82 min
Aug 9, 5:23 PM CDTSevere Thunderstorm WarningEWXVal Verde82 min
Aug 9, 5:49 PM CDTSevere Thunderstorm WarningEWXEdwards56 min
Aug 9, 5:53 PM CDTSevere Thunderstorm WarningEWXReal67 min
Aug 9, 6:38 PM CDTSevere Thunderstorm WarningEWXVal Verde67 min
Aug 9, 6:43 PM CDTSevere Thunderstorm WarningEWXEdwards47 min

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.