Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 10, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Feb 21, 2003, 3:47 AM CST for 4 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
- Feb 21, 2003, 3:47 AM CST (09:47 UTC)
- Expired
- Feb 21, 2003, 6:45 AM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties Bandera County, TX, Gillespie County, TX, Kendall County, TX, Kerr County, TX
The radar
The Austin/San Antonio radar (KEWX), 118 km from the middle of the area, began a volume at 09:49 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, 9.8 hours before the alert went out and 177 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 210950
FFWSAT
TXC019-171-259-265-211245-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
347 AM CST FRI FEB 21 2003
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
GILLESPIE
KERR
KENDALL
BANDERA
* UNTIL 645 AM CST
* AT 347 AM...WEATHER SERVICE DOPPLER RADAR INDICATED AREAS OF
HEAVY RAIN CONTINUING TO FORM AND INCREASE OVER PARTS OF
GILLESPIE...KERR...KENDALL...AND BANDERA COUNTIES.
LCALLY HEAVY RAIN IS EXPECTED IN THE NEXT FEW HOURS...AND
WILL CAUSE FLOODING AT LOW WATER CROSSINGS OR IN LOW LYING AREAS.
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 2971 9954 2970 9899 2996 9869 3048 9863
3045 9923 3026 9920 3017 9963
$$1 follow-up statement
000 WGUS74 KEWX 211245 FFSSAT TXC019-259-265-211300- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 645 AM CST FRI FEB 21 2003 ...THE FLASH FLOOD WARNING FOR KERR...KENDALL AND BANDERA COUNTIES HAS EXPIRED... NATIONAL WEATHER SERVICE RADAR INDICATED THE HEAVY RAINFALL WAS ENDING AND THE FLOOD THREAT WAS DIMINISHING. SOME MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS ENDED AND THE FLASH FLOOD WARNING HAS EXPIRED. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION. $$
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, 3:51 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Kerr | 54 min |
| Feb 21, 4:39 AM CST | Flash Flood Warning | EWX | Blanco, Burnet | 3 hr |
| 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.