Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 74, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 3, 2003, 11:54 AM CDT for Atascosa County, Karnes County, Wilson 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
- Sep 3, 2003, 11:54 AM CDT (16:54 UTC)
- Expired
- Sep 3, 2003, 2:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties Atascosa County, TX, Karnes County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 88 km from the middle of the area, began a volume at 16:54 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, 4.9 hours before the alert went out and 156 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
- 2682 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 614 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -15 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 031654
FFWSAT
TXC013-255-493-031945-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1154 AM CDT WED SEP 3 2003
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
WILSON
ATASCOSA
KARNES
* UNTIL 245 PM CDT
* AT 1154 AM...WEATHER SERVICE DOPPLER RADAR INDICATED NUMEROUS
THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL ACROSS WARNED AREA.
THESE THUNDERSTORMS WERE MOVING SLOWLY NORTHEAST AT 5 TO 10 MPH.
ISOLATED LOCALLY HEAVY RAINFALL TOTALS OF 2 TO 3 INCHES ARE BEING
INDICATED BY DOPPLER RADAR...AND AN ADDITIONAL 1 TO 2 INCHES OF
RAINFALL IS POSSIBLE OVER THE WARNED AREA.
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. DO NOT DRIVE YOUR
VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY.
LAT...LON 2885 9877 2865 9878 2866 9831 2881 9810
2872 9804 2880 9758 2900 9780 2912 9766
2937 9788 2934 9814
$$1 follow-up statement
000 WGUS74 KEWX 031856 FFSSAT TXC013-255-493-031945- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 156 PM CDT WED SEP 3 2003 ...A FLASH FLOOD WARNING CONTINUES FOR WILSON...ATASCOSA AND KARNES COUNTIES UNTIL 245 PM CDT... AT 156 PM...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS SLOWLY DECREASING ACROSS THE WARNED AREA. THE HEAVIEST RAINFALL CONTINUES TO PRODUCE FLASH FLOODING RAINS OF 2 TO 4 INCHES OVER I-37 AROUND CAMPBELLTON. TRAVEL IN SOUTHEAST ATASCOSA COUNTY IS DISCOURAGED AS ROADWAYS IN AND AROUND CAMPBELLTON ARE LIKELY FLOODED. OTHERWISE...EXPECT A REDUCED THREAT OF FLASH FLOODING BY 3 PM. THE CHANCE OF RAIN WILL CONTINUE INTO THE EVENING HOURS. IF ADDITIONAL RAINS MOVE INTO ATASCOSA...KARNES...AND WILSON COUNTIES A NEW FLASH FLOOD WARNING MAY BE NEEDED. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 12:56 PM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Sep 3, 1:21 PM CDT | Flash Flood Warning | EWX | DeWitt, Fayette, Lavaca | 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.