Alert archive / Texas / Flash Flood Warnings in 2004
Flash Flood Warning 371, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Nov 17, 2004, 10:28 AM CST for 5 counties in 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
- Nov 17, 2004, 10:28 AM CST (16:28 UTC)
- Expired
- Nov 17, 2004, 1:30 PM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties Bastrop County, TX, DeWitt County, TX, Fayette County, TX, Lavaca County, TX, Lee County, TX
The radar
The Austin/San Antonio radar (KEWX), 92 km from the middle of the area, began a volume at 16:29 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, 4.5 hours before the alert went out and 226 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
- 800 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 7.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 171632
FFWEWX
TXC021-123-149-285-287-171930-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1028 AM CST WED NOV 17 2004
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
LEE
BASTROP
FAYETTE
LAVACA
DEWITT
* UNTIL 130 PM CST
* AT 1026 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED VERY HEAVY RAIN FROM A SLOW MOVING LINE OF THUNDERSTORMS
OVER THE WARNED AREA. IN ADDITION TO THE LINE OF THUNDERSTORMS...
ADDITIONAL REDEVELOPMENT OF SCATTERED THUNDERSTORMS WILL FORM IN
THE WAKE OF THIS LINE.
RAINFALL AMOUNTS OF 1 TO 2 INCHES HAVE ALREADY FALLEN ACROSS PARTS
OF BASTROP AND DEWITT COUNTIES...AND THESE RAIN TOTALS SHOULD
INCREASE TO AS MUCH AS 3 TO 4 INCHES BEFORE THE SHOWERS AND
THUNDERSTORMS BEGIN TO DECREASE THIS AFTERNOON.
FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.
LAT...LON 2966 9710 2957 9719 2940 9721 2907 9766
2895 9731 2918 9703 2913 9693 2940 9663
2967 9691 2971 9693 3000 9661 3016 9669
3016 9683 3030 9672 3054 9696 3039 9733
3024 9745 3007 9762 2980 9728
$$1 follow-up statement
000
WGUS74 KEWX 171833
FFSEWX
TXC021-123-149-285-287-171930-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1233 PM CST WED NOV 17 2004
...A FLASH FLOOD WARNING CONTINUES UNTIL 130 PM CST FOR DEWITT...
LAVACA...FAYETTE...BASTROP AND LEE COUNTIES...
AT 1233 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SCATTERED SHOWERS AND THUNDERSTORM PRODUCING VERY HEAVY
RAINS OVER THE WARNED AREA.
THESE RAINS ARE SHIFTING EAST INTO SOUTHEAST TEXAS WITH THE CHANCE
OF RAIN DECREASING OVER THE NEXT HOUR OR TWO. ADDITIONAL RAINFALL
AMOUNTS OVER THE WARNED AREA WILL LIKELY BE LESS THAN ONE-HALF INCH
WITH HIGHEST TOTALS EXPECTED TO BE JUST OVER 3 INCHES. LOW WATER
CROSSINGS WILL LIKELY REMAIN FLOODED IN SPOTS THROUGH AT LEAST 1 PM.
TRAVEL IS DISCOURAGED ACROSS THE WARNED AREA THROUGH 130 PM...BUT
CONDITIONS ARE EXPECTED TO IMPROVE LATER THIS AFTERNOON.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
WATER COVERED AREAS. A LITTLE OVER A FOOT OF WATER CAN CARRY AWAY
MOST CARS AND TRUCKS. TURN AROUND DONT DROWN.
LAT...LON 2966 9710 2957 9719 2940 9721 2907 9766
2895 9731 2918 9703 2913 9693 2940 9663
2967 9691 2971 9693 3000 9661 3016 9669
3016 9683 3030 9672 3054 9696 3039 9733
3024 9745 3007 9762 2980 9728
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 6:03 PM CST | Tornado Warning | EWX | Atascosa, Bandera, Bexar, Frio, Kendall, Medina | 42 min |
| Nov 16, 6:21 PM CST | Tornado Warning | EWX | Gillespie, Llano | 24 min |
| Nov 16, 6:22 PM CST | Flash Flood Warning | EWX | Gillespie, Kendall, Kerr, Llano | 4 hr |
| Nov 16, 6:46 PM CST | Tornado Warning | EWX | Gillespie, Llano | 44 min |
| Nov 16, 6:47 PM CST | Tornado Warning | EWX | Kendall | 28 min |
| Nov 16, 7:13 PM CST | Tornado Warning | EWX | Bexar | 32 min |
| Nov 16, 7:45 PM CST | Tornado Warning | EWX | Bexar | 15 min |
| Nov 16, 7:52 PM CST | Tornado Warning | EWX | Blanco | 38 min |
| Nov 16, 7:57 PM CST | Tornado Warning | EWX | Comal | 48 min |
| Nov 16, 8:22 PM CST | Flash Flood Warning | EWX | Blanco, Comal, Guadalupe | 3 hr |
| Nov 16, 8:28 PM CST | Tornado Warning | EWX | Blanco | 32 min |
| Nov 16, 8:44 PM CST | Tornado Warning | EWX | Comal, Hays | 31 min |
| Nov 16, 9:15 PM CST | Flash Flood Warning | EWX | Edwards, Kerr, Kinney, Real, Uvalde, Val Verde | 6 hr |
| Nov 16, 9:59 PM CST | Flash Flood Warning | EWX | Gillespie, Kendall, Llano | 4 hr |
| Nov 16, 10:04 PM CST | Flash Flood Warning | EWX | Hays, Travis | 3 hr |
| Nov 16, 11:10 PM CST | Flash Flood Warning | EWX | Atascosa, Bandera, Bexar, Blanco, Comal, Guadalupe and 1 more | 3 hr |
| Nov 16, 11:22 PM CST | Flash Flood Warning | EWX | Burnet, Williamson | 3 hr |
| Nov 17, 12:14 AM CST | Flash Flood Warning | EWX | Hays, Travis | 3 hr |
| Nov 17, 1:48 AM CST | Flash Flood Warning | EWX | Gillespie, Kendall, Llano | 117 min |
| Nov 17, 2:07 AM CST | Flash Flood Warning | EWX | Atascosa, Bandera, Bexar, Blanco, Burnet, Comal and 3 more | 6 hr |
| Nov 17, 3:13 AM CST | Flash Flood Warning | EWX | Edwards, Kerr, Kinney, Real, Uvalde, Val Verde | 4 hr |
| Nov 17, 3:21 AM CST | Flash Flood Warning | EWX | Hays, Travis | 6 hr |
| Nov 17, 3:43 AM CST | Flash Flood Warning | EWX | Gillespie, Kendall, Llano | 5 hr |
| Nov 17, 6:24 AM CST | Flash Flood Warning | EWX | Wilson | 3 hr |
| Nov 17, 7:25 AM CST | Flash Flood Warning | EWX | Atascosa, Bexar, Blanco, Burnet, Caldwell, Comal and 7 more | 4 hr |
| Nov 17, 10:56 AM CST | Tornado Warning | EWX | Lavaca | 49 min |
Nearby
Flash Flood Warnings in Texas, 2004Every flash flood warning in 2004
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.