Alert archive / Texas / Flash Flood Warnings in 2005
Flash Flood Warning 52, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 4, 2005, 5:18 PM CDT for Williamson County, Texas. It was in force for 117 min. 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 4, 2005, 5:18 PM CDT (22:18 UTC)
- Expired
- Aug 4, 2005, 7:15 PM CDT
- In force
- 117 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 10.3 hours before the alert went out and 245 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.
- Mixed-layer CAPE
- 763 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1338 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 042219
FFWEWX
TXC491-050015-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
518 PM CDT THU AUG 4 2005
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
WILLIAMSON
* UNTIL 715 PM CDT
* AT 518 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A LINE OF THUNDERSTORMS MOVING SOUTHWARD
ACROSS THE COUNTY. RAINFALL RATES OF 1 INCH AN HOUR WERE BEING
ESTIMATED BY RADAR.
* LOCATIONS IN THE WARNING INCLUDE THRALL...JARRELL...GRANGER DAM AND
GRANGER.
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 3068 9802 3040 9731 3048 9719 3072 9731
3092 9782
$$2 follow-up statements
000
WGUS74 KEWX 042304
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
602 PM CDT THU AUG 4 2005
TXC491-050015-
WILLIAMSON TX-
602 PM CDT THU AUG 4 2005
...A FLASH FLOOD WARNING CONTINUES UNTIL 715 PM CDT FOR WILLIAMSON
COUNTY...
AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE EASTERN
HALF OF WILLIAMSON COUNTY. RAINFALL RATES OF 1 TO 1.25 INCHES AN HOUR
WERE ESTIMATED BY RADAR NORTHEAST OF TAYLOR.
LOCATIONS IN THE WARNING INCLUDE WEIR...THRALL...TAYLOR...SERENADA...
LIBERTY HILL...JARRELL...HUTTO...GRANGER DAM...GRANGER...GEORGETOWN
DAM...GEORGETOWN...FLORENCE AND ANDICE.
FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.
LAT...LON 3068 9802 3040 9731 3048 9719 3072 9731
3092 9782
$$000
WGUS74 KEWX 050008
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
707 PM CDT THU AUG 4 2005
TXC491-050017-
WILLIAMSON TX-
707 PM CDT THU AUG 4 2005
...THE FLASH FLOOD WARNING FOR WILLIAMSON COUNTY IS CANCELLED...
THUNDERSTORMS HAVE WEAKENED ACROSS THE COUNTY AND THE THREAT OF FLASH
FLOODING HAS ENDED.
LAT...LON 3068 9802 3040 9731 3048 9719 3072 9731
3092 9782
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:36 PM CDT | Flash Flood Warning | EWX | Gillespie | 114 min |
| Aug 4, 1:01 PM CDT | Flash Flood Warning | EWX | Edwards, Real | 3 hr |
| Aug 4, 2:02 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Aug 4, 4:53 PM CDT | Flash Flood Warning | EWX | Val Verde | 2 hr |
| Aug 4, 5:42 PM CDT | Flash Flood Warning | EWX | Burnet | 2 hr |
| Aug 4, 6:03 PM CDT | Flash Flood Warning | EWX | Gillespie | 117 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.