Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 11, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Feb 21, 2003, 4:39 AM CST for Blanco County, Burnet 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
- Feb 21, 2003, 4:39 AM CST (10:39 UTC)
- Expired
- Feb 21, 2003, 7:45 AM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties Blanco County, TX, Burnet County, TX
The radar
The Austin/San Antonio radar (KEWX), 93 km from the middle of the area, began a volume at 10:41 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
Del Rio, TX (KDRT), launched 00:00Z, 10.7 hours before the alert went out and 271 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 154 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 211046
FFWSAT
TXC031-053-211345-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
439 AM CST FRI FEB 21 2003
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
BURNET
BLANCO
* UNTIL 745 AM CST
* AT 439 AM...WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN
FORMING OVER BURNET AND BLANCO COUNTIES. HEAVY RAIN IS EXPECTED
TO CONTINUE TO FORM IN THE NEXT FEW HOURS...CAUSING FLOODING IN
LOW LYING AREAS AND AT LOW WATER CROSSINGS.
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.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.
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 3020 9849 3012 9835 3097 9800 3090 9834
3066 9834 3039 9838
$$1 follow-up statement
000 WGUS74 KEWX 211305 FFSSAT TXC031-053-171-209-453-491-211345- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 705 AM CST FRI FEB 21 2003 ...FLASH FLOOD WARNING FOR WILLIAMSON...TRAVIS AND HAYS COUNTIES UNTIL 10 AM CST... ...FLASH FLOOD WARNING FOR BURNET...BLANCO AND GILLESPIE COUNTIES UNTIL 745 AM CST... ...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON FOR ALL OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY... THUNDERSTORMS PRODUCING HEAVY RAINFALL WERE MOVING NORTHEAST AT 20 MPH ACROSS BURNET...TRAVIS AND WILLIAMSON COUNTIES. RAINFALL RATES OF 1 INCH AN HOUR CONTINUE WITH THESE STRONGER STORMS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 8:06 PM CST | Flash Flood Warning | EWX | Burnet | 3 hr |
| Feb 20, 8:31 PM CST | Flash Flood Warning | EWX | Fayette | 89 min |
| Feb 21, 3:47 AM CST | Flash Flood Warning | EWX | Bandera, Gillespie, Kendall, Kerr | 3 hr |
| Feb 21, 3:51 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Kerr | 54 min |
| Feb 21, 4:47 AM CST | Severe Thunderstorm Warning | EWX | Kendall, Kerr | 58 min |
| Feb 21, 6:01 AM CST | Flash Flood Warning | EWX | Hays, Travis, Williamson | 4 hr |
| Feb 21, 6:38 AM CST | Flash Flood Warning | EWX | Gillespie | 67 min |
Nearby
Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003
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.