Alert archive / Texas / Flash Flood Warnings in 2001
Flash Flood Warning 44, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 31, 2001, 7:37 AM CDT for Karnes County, Texas. It was in force for 113 min. 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, 7:37 AM CDT (12:37 UTC)
- Expired
- Aug 31, 2001, 9:30 AM CDT
- In force
- 113 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Karnes County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 0.6 hours before the alert went out and 296 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 311238
FFWSAT
TXC255-311430-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
737 AM CDT FRI AUG 31 2001
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
KARNES
* UNTIL 930 AM CDT
* AT 737 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
OVER MUCH OF KARNES COUNTY WITH RAINFALL RATES OF 1 TO 3 INCHES
...MOVING NORTHEAST AT 10 MPH.
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 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 2889 9817 2868 9778 2882 9760 2898 9776
2913 9763 2922 9773The 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, 7:41 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, 9:25 AM CDT | Flash Flood Warning | EWX | Gonzales, Karnes | 3 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.