654
WWUS74 KEWX 190028
NPWEWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
728 PM CDT THU JUN 18 2026
TXZ173-191>194-203>209-217>225-228-190200-
/O.EXT.KEWX.XH.W.0001.000000T0000Z-260619T0200Z/
WILLIAMSON-HAYS-TRAVIS-BASTROP-LEE-UVALDE-MEDINA-BEXAR-COMAL-
GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-FRIO-ATASCOSA-WILSON-
KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
INCLUDING THE CITIES OF NEW BRAUNFELS, CRYSTAL CITY, SEGUIN, LA
GRANGE, LOCKHART, GONZALES, KARNES CITY, HONDO, PLEASANTON,
GEORGETOWN, FLORESVILLE, AUSTIN, EAGLE PASS, PEARSALL, CUERO,
HALLETTSVILLE, SAN ANTONIO, CARRIZO SPRINGS, UVALDE, SAN MARCOS,
BASTROP, AND GIDDINGS
728 PM CDT THU JUN 18 2026
..EXTREME HEAT WARNING NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 116.
* WHERE...A PORTION OF SOUTH CENTRAL TEXAS.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
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.
TXZ171-172-183>190-202-190200-
/O.EXT.KEWX.HT.Y.0001.000000T0000Z-260619T0200Z/
LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE-
KENDALL-BLANCO-KINNEY-
INCLUDING THE CITIES OF LEAKEY, KERRVILLE, BANDERA,
FREDERICKSBURG, DEL RIO, BURNET, LLANO, BOERNE, BLANCO,
ROCKSPRINGS, AND BRACKETTVILLE
728 PM CDT THU JUN 18 2026
..HEAT ADVISORY NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 110.
* WHERE...A PORTION OF SOUTH CENTRAL TEXAS.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* 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.
05
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