Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 73, NWS Austin/San Antonio, TX

August 6, 2005Gillespie County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 6, 2005, 7:09 PM CDT for Gillespie County, Texas. It was in force for 2 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 6, 2005, 7:09 PM CDT (00:09 UTC)
Expired
Aug 6, 2005, 9:15 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Gillespie County, TX

The radar

The Austin/San Antonio radar (KEWX), 115 km from the middle of the area, began a volume at 00:09 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 00:00Z, 0.2 hours before the alert went out and 205 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 2005-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 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 00:00Z on 2005-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
76 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
1251 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
35 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 070010
FFWEWX
TXC171-070215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
709 PM CDT SAT AUG 6 2005

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 915 PM CDT

* AT 703 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  LOCALLY HEAVY RAIN FROM THUNDERSTORMS OVER GILLESPIE COUNTY FROM   
  HARPER TO STONEWALL. THE STORMS WERE SHOWING VERY LITTLE MOVEMENT.

* LOCATIONS IN THE WARNING INCLUDE WILLOW CITY...HARPER AND
  FREDERICKSBURG.

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 3019 9926 3018 9863 3046 9866 3048 9924

$$
1 follow-up statement
000 
WGUS74 KEWX 070055
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
752 PM CDT SAT AUG 6 2005

TXC171-070102-
GILLESPIE TX-
752 PM CDT SAT AUG 6 2005

...THE FLASH FLOOD WARNING FOR GILLESPIE COUNTY HAS BEEN CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SHOWERS AND 
THUNDERSTORMS ACROSS GILLESPIE COUNTY CONTINUE TO DIMINISH. AREAS OF 
LIGHT TO MODERATE RAINFALL CONTINUE...WITH RAINFALL RATES ONE 
QUARTER OF AN INCH OR LESS.  RESIDENTS AND MOTORISTS SHOULD CONTINUE 
TO EXERCISE CAUTION NEAR CREEKS AND STREAMS AND IN LOW LYING AREAS. 
WATER WILL CONTINUE TO RUN OFF FROM EARLIER HEAVY RAINFALL. DO NOT 
ATTEMPT TO DRIVE THROUGH FLOODED LOW WATER CROSSINGS.  TURN 
AROUND...DONT DROWN.

LAT...LON 3019 9926 3018 9863 3046 9866 3048 9924

$$

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.