Alert archive / Texas / Flash Flood Warnings in 2000
Flash Flood Warning 89, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Nov 23, 2000, 10:00 PM CST for Atascosa County, Gonzales 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Nov 23, 2000, 10:00 PM CST (04:00 UTC)
- Expired
- Nov 24, 2000, 1:00 AM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Atascosa County, TX, Gonzales County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 59 km from the middle of the area, began a volume at 04:01 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 00:00Z, 4.0 hours before the alert went out and 181 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
- 327 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 889 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 240405
FFWEWX
TXC013-177-493-240700-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1000 PM CST THU NOV 23 2000
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
GONZALES COUNTY
WILSON COUNTY
ATASCOSA COUNTY
* UNTIL 100 AM CST
* AT 1000 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS FROM JOURDANTON TO LA VERINA TO HARWOOD...MOVING EAST
AT 20 MPH. SOME OF THE THUNDERSTORMS WERE PRODUCING HOURLY RAINFALL RATES
OF 1 TO 2 INCHES PER HOUR. LOW WATER CROSSINGS AND SMALL STREAMS
WILL LIKELY FLOOD.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
LAT...LON 2909 9878 2874 9843 2949 9736 2954 9749
2917 9812The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 7:48 PM CST | Severe Thunderstorm Warning | EWX | Gillespie | 57 min |
| Nov 23, 8:31 PM CST | Flash Flood Warning | EWX | Bexar, Medina | 3 hr |
| Nov 23, 8:35 PM CST | Flash Flood Warning | EWX | Comal, Hays | 3 hr |
| Nov 23, 8:55 PM CST | Tornado Warning | EWX | Dimmit, Zavala | 35 min |
| Nov 23, 9:03 PM CST | Severe Thunderstorm Warning | EWX | Frio | 57 min |
| Nov 23, 9:25 PM CST | Flash Flood Warning | EWX | Bastrop, Caldwell, Guadalupe, Travis, Williamson | 3 hr |
| Nov 23, 10:31 PM CST | Flash Flood Warning | EWX | DeWitt, Fayette, Karnes, Lavaca, Lee | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2000Every flash flood warning in 2000
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.