Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 196, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 15, 2002, 6:11 PM CDT for 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
- Aug 15, 2002, 6:11 PM CDT (23:11 UTC)
- Expired
- Aug 15, 2002, 9:00 PM CDT
- In force
- 3 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), 104 km from the middle of the area, began a volume at 23:15 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, 11.2 hours before the alert went out and 190 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
- 1006 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- 73 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 152311
FFWSAT
TXC285-160200-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
604 PM CDT THU AUG 15 2002
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
LAVACA
* UNTIL 900 PM CDT
* AT 604 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
ACROSS CENTRAL LAVACA COUNTY MAINLY ALONG HIGHWAY ALTERNATE 90.
RAINFALL RATES WERE AVERAGING 1 TO 2 INCHES PER HOUR. THE RAIN AREA
IS DRIFTING SLOWLY SOUTH.
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 2941 9722 2910 9693 2934 9661 2962 9689
2960 97141 follow-up statement
000 WGUS74 KEWX 160018 FFSSAT TXC285-160200- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 705 PM CDT THU AUG 15 2002 ...A FLASH FLOOD WARNING CONTINUES FOR LAVACA COUNTY UNTIL 900 PM CDT... AT 705 PM...THUNDERSTORMS OVER LAVACA COUNTY HAD ALL BUT DISSIPATED. HOWEVER...CREEKS AND STREAMS WILL CONTINUE TO RUN HIGH THE NEXT COUPLE OF HOURS FROM RAINS EARLIER TODAY WHICH RANGED FROM 1 TO 4 INCHES. DOPPLER RADAR INDICATED THAT THE GREATEST AMOUNT FELL WEST OF SUBLIME. 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.
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002
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.