485
WWUS74 KEWX 180729
NPWEWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
229 AM CDT THU JUN 18 2026
TXZ173-191>194-203>209-217>225-228-190100-
/O.CON.KEWX.XH.W.0001.260618T1700Z-260619T0100Z/
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 CRYSTAL CITY, HALLETTSVILLE, CARRIZO
SPRINGS, LOCKHART, SEGUIN, CUERO, KARNES CITY, BASTROP, SAN
ANTONIO, GIDDINGS, UVALDE, NEW BRAUNFELS, FLORESVILLE, HONDO,
PLEASANTON, AUSTIN, GONZALES, SAN MARCOS, GEORGETOWN, PEARSALL,
EAGLE PASS, AND LA GRANGE
229 AM CDT THU JUN 18 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM
CDT THIS EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES OF
113-118 EXPECTED.
* WHERE...A PORTION OF SOUTH CENTRAL TEXAS.
* WHEN...FROM NOON TODAY TO 8 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>190-202-190100-
/O.CON.KEWX.HT.Y.0001.260618T1700Z-260619T0100Z/
LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE-
KENDALL-BLANCO-KINNEY-
INCLUDING THE CITIES OF KERRVILLE, BRACKETTVILLE, BANDERA,
FREDERICKSBURG, BLANCO, ROCKSPRINGS, LLANO, BOERNE, LEAKEY, DEL
RIO, AND BURNET
229 AM CDT THU JUN 18 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS
EVENING...
* WHAT...HEAT INDEX VALUES FROM 108-112 EXPECTED.
* WHERE...A PORTION OF SOUTH CENTRAL TEXAS.
* WHEN...FROM NOON TODAY TO 8 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.
MM
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page