Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 64, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 16, 2003, 6:33 PM CDT for Lavaca County, Texas. It was in force for 4 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 16, 2003, 6:33 PM CDT (23:33 UTC)
- Expired
- Jul 16, 2003, 10:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 103 km from the middle of the area, began a volume at 23:37 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.6 hours before the alert went out and 194 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
- 2535 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 18 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 162338
FFWSAT
TXC285-170330-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
633 PM CDT WED JUL 16 2003
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
LAVACA
* UNTIL 1030 PM CDT
* AT 633 PM...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS
PRODUCING VERY HEAVY RAIN NEAR THE LAVACA...COLORADO COUNTY LINE
MOVING NORTHWEST AT 20 MPH. RAINFALL RATES WERE 1.5 INCHES PER
HOUR. ADDITIONAL THUNDERSTORMS BACK TO THE TEXAS COAST MAY MOVE
ACROSS THE AREA DURING THE NEXT COUPLE OF HOURS.
EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
LAT...LON 2957 9717 2940 9722 2916 9692 2936 9663
2961 9690
$$1 follow-up statement
000 WGUS74 KEWX 170144 FFSSAT TXC285-170245- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 844 PM CDT WED JUL 16 2003 ...THE FLASH FLOOD WARNING FOR LAVACA COUNTY HAS BEEN CANCELLED... NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS ENDING ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS ENDED...AND THE FLASH FLOOD WARNING HAS BEEN CANCELLED. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 9:22 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio, Karnes, Wilson | 113 min |
| Jul 15, 10:30 PM CDT | Flash Flood Warning | EWX | Bexar, Medina | 2 hr |
| Jul 15, 11:12 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio, Karnes, Wilson | 108 min |
| Jul 16, 1:05 PM CDT | Flash Flood Warning | EWX | Bexar | 115 min |
| Jul 16, 1:27 PM CDT | Flash Flood Warning | EWX | Karnes | 2 hr |
| Jul 16, 1:52 PM CDT | Flash Flood Warning | EWX | Medina | 113 min |
| Jul 16, 2:39 PM CDT | Flash Flood Warning | EWX | Frio | 111 min |
| Jul 16, 4:26 PM CDT | Flash Flood Warning | EWX | Val Verde | 2 hr |
| Jul 16, 6:42 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003
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.