Alert archive / Texas / Flash Flood Warnings in 2001
Flash Flood Warning 48, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 31, 2001, 9:25 AM CDT for Gonzales County, Karnes 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 31, 2001, 9:25 AM CDT (14:25 UTC)
- Expired
- Aug 31, 2001, 12:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Gonzales County, TX, Karnes County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 2.4 hours before the alert went out and 308 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
- 409 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 690 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 23 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 311428
FFWSAT
TXC177-255-311700-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
925 AM CDT FRI AUG 31 2001
THE NATIONAL WEATHER SERVICE HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
GONZALES
KARNES
* UNTIL 12 NOON CDT
* AT 920 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
CONTINUING TO DEVELOP AND MOVE ACROSS KARNES COUNTY MOVING
NORTHEAST AT NEAR 20 MPH. RAINFALL RATES OF UP TO ONE TO TWO
INCHES PER HOUR CAN BE EXPECTED ON GROUND THAT IS ALREADY
SATURATED. MODERATE SHOWERS OF ONE HALF INCH PER HOUR CONTINUES
OVER GONZALES COUNTY. RAINS WILL SLOWLY DECREASE FROM THE WEST
OVER GONZALES COUNTY...BUT CONTINUED FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.
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 2938 9780 2926 9776 2922 9769 2890 9812
2871 9804 2872 9783 2881 9761 2901 9780
2916 9759 2942 9727 2965 9719 2974 9732
2968 9752 2961 9764The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 1:55 AM CDT | Flash Flood Warning | EWX | DeWitt, Lavaca | 2 hr |
| Aug 31, 3:33 AM CDT | Flash Flood Warning | EWX | Gonzales | 3 hr |
| Aug 31, 4:00 AM CDT | Flash Flood Warning | EWX | DeWitt, Lavaca | 4 hr |
| Aug 31, 4:43 AM CDT | Flash Flood Warning | EWX | Bexar, Caldwell, Comal, Guadalupe, Hays | 3 hr |
| Aug 31, 6:28 AM CDT | Flash Flood Warning | EWX | Gonzales | 3 hr |
| Aug 31, 7:37 AM CDT | Flash Flood Warning | EWX | Karnes | 113 min |
| Aug 31, 7:41 AM CDT | Flash Flood Warning | EWX | Bexar, Comal, Hays, Travis | 2 hr |
| Aug 31, 8:20 AM CDT | Flash Flood Warning | EWX | DeWitt, Lavaca | 3 hr |
| Aug 31, 8:32 AM CDT | Flash Flood Warning | EWX | Fayette | 2 hr |
| Aug 31, 10:55 AM CDT | Flash Flood Warning | EWX | DeWitt, Karnes, Lavaca | 2 hr |
| Aug 31, 12:50 PM CDT | Flash Flood Warning | EWX | DeWitt, Karnes, Lavaca | 2 hr |
Nearby
Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001
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.