Alert archive / Texas / Flash Flood Warnings in 2004
Flash Flood Warning 91, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 13, 2004, 4:40 PM CDT for 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 as issued.
The facts
- Issued
- May 13, 2004, 4:40 PM CDT (21:40 UTC)
- Expired
- May 13, 2004, 7:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Karnes County, TX
The radar
The Austin/San Antonio radar (KEWX), 90 km from the middle of the area, began a volume at 21:41 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, 9.7 hours before the alert went out and 143 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
- 2496 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 574 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KEWX 132140 FFWSAT TXC255-140030- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 440 PM CDT THU MAY 13 2004 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...KARNES * UNTIL 730 PM CDT * AT 431 PM CDT...FLASH FLOODING WAS REPORTED FROM A THUNDERSTORM 8 MILES NORTH OF KARNES CITY...LITTLE MOVEMENT WAS NOTED. FLOOD WATERS ARE MOVING DOWN LOS MORAS CREEK AND CIBOLO CREEK NORTH OF FALLS CITY INTO THE SAN ANTONIO RIVER NEAR FALLS CITY. THE FLOOD CREST IS EXPECTED TO REACH FALLS CITY BY 6 PM CDT THIS THURSDAY EVENING. THIS IS A VERY DANGEROUS SITUATION. RAPID ACTION IS REQUIRED TO PROTECT LIFE. LAT...LON 2890 9812 2875 9797 2884 9770 2912 9782 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 8:28 AM CDT | Flash Flood Warning | EWX | Williamson | 3 hr |
| May 13, 11:29 AM CDT | Flash Flood Warning | EWX | Williamson | 2 hr |
| May 13, 2:17 PM CDT | Severe Thunderstorm Warning | EWX | Wilson | 58 min |
| May 13, 2:30 PM CDT | Flash Flood Warning | EWX | Gonzales, Karnes, Wilson | 3 hr |
| May 13, 3:02 PM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Fayette | 4 hr |
| May 13, 3:36 PM CDT | Tornado Warning | EWX | Karnes | 54 min |
| May 13, 4:34 PM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Karnes, Lavaca, Wilson | 3 hr |
| May 13, 6:24 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 66 min |
| May 13, 6:57 PM CDT | Flash Flood Warning | EWX | Llano | 2 hr |
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.