190
WWUS74 KEWX 200629
NPWEWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
129 AM CDT THU AUG 20 2026
TXZ171>173-191>194-205>209-220>225-210000-
/O.CON.KEWX.HT.Y.0007.260820T1900Z-260824T0000Z/
LLANO-BURNET-WILLIAMSON-HAYS-TRAVIS-BASTROP-LEE-BEXAR-COMAL-
GUADALUPE-CALDWELL-FAYETTE-ATASCOSA-WILSON-KARNES-GONZALES-DEWITT-
LAVACA-
INCLUDING THE CITIES OF GONZALES, LLANO, LOCKHART, AUSTIN, BURNET,
HALLETTSVILLE, SAN MARCOS, PLEASANTON, KARNES CITY, NEW BRAUNFELS,
CUERO, FLORESVILLE, GEORGETOWN, LA GRANGE, BASTROP, GIDDINGS, SEGUIN,
AND SAN ANTONIO
129 AM CDT THU AUG 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM
CDT SUNDAY...
* WHAT...TEMPERATURES UP TO 104 AND HEAT INDEX VALUES UP TO 112
EXPECTED.
* WHERE...THE NORTHERN HILL COUNTRY, I-35 CORRIDOR, AND COASTAL
PLAINS.
* WHEN...FROM 2 PM THIS AFTERNOON TO 7 PM CDT SUNDAY.
* 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.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
27
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page