Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 98, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Nov 17, 2003, 8:35 AM CST for DeWitt County, Lavaca 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
- Nov 17, 2003, 8:35 AM CST (14:35 UTC)
- Expired
- Nov 17, 2003, 11:30 AM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties DeWitt County, TX, Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 98 km from the middle of the area, began a volume at 14:38 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, 2.6 hours before the alert went out and 161 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
- 1818 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 8.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 171436
FFWSAT
TXC123-285-171730-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
835 AM CST MON NOV 17 2003
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
LAVACA
DEWITT
* UNTIL 1130 AM CST
* AT 828 AM...WEATHER SERVICE DOPPLER RADAR INDICATED PERSISTENT
VERY HEAVY RAIN OVER DEWITT AND LAVACA COUNTIES. WEATHER SERVICE
DOPPLER RADARS HAVE ESTIMATED 3 TO 5 INCHES OF RAIN HAS FALLEN FROM
CUERO WEST TO UPPER MEYERSVILLE. A BAND OF HEAVY RAIN STRETCHES
FROM UPPER MEYERSVILLE EAST THROUGH CUERO TO SOUTH OF HALLETTSVILLE.
ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE EXPECTED.
EXCESSIVE RUNOFF FROM THIS STORM 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 IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.
LAT...LON 2891 9734 2893 9743 2887 9750 2891 9765
2943 9716 2962 9700 2962 9684 2940 9665
$$2 follow-up statements
000 WGUS74 KEWX 171547 FFSSAT TXC123-285-171715- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 945 AM CST MON NOV 17 2003 ...FLASH FLOOD WARNING CONTINUES FOR LAVACA AND DEWITT COUNTIES UNTIL 1130 AM CST... NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE WIDESPREAD SHOWERS AND THUNDERSTORMS PRODUCING HEAVY RAINFALL FROM YORKTOWN TO CUERO TO SPEAKS. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES CAN EXPECTED ON AREAS OVER LAVACA AND DEWITT COUNTIES. SOME AREAS HAVE ALREADY RECEIVED AMOUNTS OF 3 TO 5 INCHES EARLIER THIS MORNING...AND THE GROUND IS SATURATED. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION. $$
000 WGUS74 KEWX 171723 FFSSAT TXC123-285-171815- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1125 AM CST MON NOV 17 2003 ...THE FLASH FLOOD WARNING FOR LAVACA AND DEWITT COUNTIES HAS BEEN ALLOWED TO EXPIRE... NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS DECREASING AND THE THREAT OFF ADDITIONAL FLOODING HAS DIMINISHED. SOME RESIDUAL FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS ENDED AND THE FLASH FLOOD WARNING HAS EXPIRED. ADDITIONAL HEAVY RAINS TO THE SOUTH WILL MOVE NORTHEAST OVER THE NEXT FEW HOURS AND MAY PROMPT ADDITIONAL FLASH FLOOD WARNINGS FOR THE AFTERNOON HOURS. A FLASH FLOOD WATCH CONTINUES IN EFFECT THROUGH TONIGHT. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 7:04 AM CST | Flash Flood Warning | EWX | DeWitt, Lavaca | 116 min |
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.