621
WWUS74 KEWX 211646
NPWEWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1146 AM CDT TUE JUL 21 2026
TXZ171>173-191>194-204>209-219>225-220615-
/O.NEW.KEWX.HT.Y.0003.260722T1700Z-260723T0100Z/
LLANO-BURNET-WILLIAMSON-HAYS-TRAVIS-BASTROP-LEE-MEDINA-BEXAR-
COMAL-GUADALUPE-CALDWELL-FAYETTE-FRIO-ATASCOSA-WILSON-KARNES-
GONZALES-DE WITT-LAVACA-
INCLUDING THE CITIES OF HALLETTSVILLE, SAN MARCOS, LOCKHART,
GIDDINGS, BURNET, CUERO, SAN ANTONIO, GONZALES, BASTROP,
GEORGETOWN, LA GRANGE, HONDO, PEARSALL, PLEASANTON, LLANO,
AUSTIN, FLORESVILLE, KARNES CITY, SEGUIN, AND NEW BRAUNFELS
1146 AM CDT TUE JUL 21 2026
..HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT WEDNESDAY
* WHAT...HIGH TEMPERATURES OF 100 TO 104 DEGREES AND HEAT INDEX
VALUES UP TO 112 DEGREES EXPECTED.
* WHERE...AREAS GENERALLY ALONG AND EAST OF THE INTERSTATE 35
CORRIDOR.
* WHEN...FROM NOON TO 8 PM CDT WEDNESDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
DO NOT LEAVE YOUNG CHILDREN OR PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
PLATT
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