041  
WGUS54 KEWX 211206  
FFWEWX  
TXC491-211515-  
/O.NEW.KEWX.FF.W.0011.260421T1206Z-260421T1515Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
 
BULLETIN - EAS ACTIVATION REQUESTED  
FLASH FLOOD WARNING  
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX  
706 AM CDT TUE APR 21 2026  
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A  
 
* FLASH FLOOD WARNING FOR...  
CENTRAL WILLIAMSON COUNTY IN SOUTH CENTRAL TEXAS...  
 
* UNTIL 1015 AM CDT.  
 
* AT 706 AM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED  
THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN  
1 AND 3 INCHES OF RAIN HAVE FALLEN. ADDITIONAL RAINFALL AMOUNTS OF  
1 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA. FLASH FLOODING IS  
ONGOING OR EXPECTED TO BEGIN SHORTLY.  
 
HAZARD...LIFE THREATENING FLASH FLOODING. THUNDERSTORMS  
PRODUCING FLASH FLOODING.  
 
SOURCE...RADAR AND AUTOMATED GAUGES.  
 
IMPACT...LIFE THREATENING FLASH FLOODING OF CREEKS AND STREAMS,  
URBAN AREAS, HIGHWAYS, STREETS AND UNDERPASSES.  
 
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...  
ROUND ROCK, GEORGETOWN, TAYLOR, SERENADA, LEANDER, HUTTO, LIBERTY  
HILL, JARRELL, FLORENCE, THRALL, WEIR, GEORGETOWN DAM, SUN CITY,  
ANDICE, COUPLAND, JONAH, WALBURG, THEON, WATERLOO AND SEWARD  
JUNCTION.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE  
DANGERS OF FLOODING.  
 
BE AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.  
 
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE  
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED  
ROADS. FIND AN ALTERNATE ROUTE.  
 
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY SERVICES OR LAW  
ENFORCEMENT AND REQUEST THEY PASS THIS INFORMATION TO THE NATIONAL  
WEATHER SERVICE WHEN YOU CAN DO SO SAFELY.  
 

 
 
LAT...LON 3058 9768 3067 9797 3087 9780 3061 9724  
3048 9735  
 
FLASH FLOOD...RADAR AND GAUGE INDICATED  
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE  
 

 
 
MM  
 
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