Alert archive / Texas / Flash Flood Warnings in 2001
Flash Flood Warning 45, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 31, 2001, 7:41 AM CDT for 4 counties in Texas. It was in force for 2 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, 7:41 AM CDT (12:41 UTC)
- Expired
- Aug 31, 2001, 10:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Bexar County, TX, Comal County, TX, Hays County, TX, Travis County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 0.7 hours before the alert went out and 255 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 311245 FFWSAT TXC029-091-209-453-311500- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 741 AM CDT FRI AUG 31 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... COMAL TRAVIS BEXAR HAYS * UNTIL 1000 AM CDT * AT 741 AM...WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAINS CONTINUING FROM SAN ANTONIO TO AUSTIN. WITH RAINFALL RATES AS LITTLE AS ONE INCH AN HOUR AND SATURATED GROUNDS, RUNOFF WILL BE IMMEDIATE AND FLOODING IMMINENT. THIS IS A DANGEROUS SITUATION...FLASH FLOODING HAS BEEN REPORTED. IF YOU ARE NEAR...OR LIVE...IN A FLASH FLOOD PRONE AREA...MOVE IMMEDIATELY TO HIGHER GROUND. DO NOT ATTEMPT TO WALK OR DRIVE ACROSS AREAS WHERE WATER IS FLOWING. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISIONS SERVICE PROVIDER FOR LATER STATEMENTS CONCERNING THIS DANGEROUS FLASH FLOOD EVENT. LAT...LON 2955 9870 2943 9845 3030 9755 3048 9792
The 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, 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.