456
WWUS76 KSGX 080421
NPWSGX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
921 PM PDT WED OCT 7 2026
CAZ043-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
SAN DIEGO COUNTY COASTAL AREAS-
INCLUDING THE CITIES OF OCEANSIDE, VISTA, CHULA VISTA, CARLSBAD, SAN
DIEGO, ENCINITAS, AND NATIONAL CITY
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES IN THE LOW
TO MID 90S.
* WHERE...SAN DIEGO COUNTY COASTAL AREAS.
* WHEN...UNTIL 8 PM PDT THURSDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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 AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
CAZ048-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
INCLUDING THE CITIES OF SAN BERNARDINO, FONTANA, RIVERSIDE, MORENO
VALLEY, RANCHO CUCAMONGA, CORONA, AND ONTARIO
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES IN THE
UPPER 90S TO 102. NIGHTS WILL BE WARM WITH LOW TEMPERATURES IN THE
UPPER 60S TO LOW 70S.
* WHERE...SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND
EMPIRE.
* WHEN...UNTIL 8 PM PDT THURSDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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 AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
CAZ050-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
SAN DIEGO COUNTY VALLEYS-
INCLUDING THE CITIES OF LA MESA, ESCONDIDO, SAN MARCOS, EL CAJON,
SANTEE, AND POWAY
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES IN THE MID
90S TO 101. NIGHTS WILL BE WARM WITH LOW TEMPERATURES IN THE MID
60S TO LOW 70S.
* WHERE...SAN DIEGO COUNTY VALLEYS.
* WHEN...UNTIL 8 PM PDT THURSDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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 AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
CAZ057-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
SANTA ANA MOUNTAINS AND FOOTHILLS-
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES IN THE LOW
90S. NIGHS WILL BE WARM WITH LOW TEMPERATURES IN THE LOW 70S.
* WHERE...SANTA ANA MOUNTAINS AND FOOTHILLS.
* WHEN...UNTIL 8 PM PDT THURSDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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 AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
CAZ061-062-065-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261010T0300Z/
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-SAN GORGONIO PASS NEAR
BANNING-
INCLUDING THE CITIES OF INDIO, BORREGO SPRINGS, CATHEDRAL CITY, LA
QUINTA, PALM DESERT COUNTRY, PALM DESERT, DESERT HOT SPRINGS,
BANNING, COACHELLA, AND PALM SPRINGS
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES 105 TO 108
EXPECTED. LOW TEMPERATURES IN THE UPPER 70S TO LOW 80S.
* WHERE...COACHELLA VALLEY, SAN DIEGO COUNTY DESERTS, AND SAN
GORGONIO PASS NEAR BANNING.
* WHEN...UNTIL 8 PM PDT FRIDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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.
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.
CAZ552-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
ORANGE COUNTY COASTAL AREAS-
INCLUDING THE CITIES OF COSTA MESA AND HUNTINGTON BEACH
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES IN THE MID
80S TO LOW 90S. NIGHTS WILL BE WARM WITH LOW TEMPERATURES IN THE
UPPER 60S TO LOW 70S.
* WHERE...ORANGE COUNTY COASTAL AREAS.
* WHEN...UNTIL 8 PM PDT THURSDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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 AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
CAZ554-081315-
/O.CON.KSGX.XH.W.0010.000000T0000Z-261009T0300Z/
ORANGE COUNTY INLAND AREAS-
INCLUDING THE CITIES OF SANTA ANA, ORANGE, MISSION VIEJO, ANAHEIM,
IRVINE, FULLERTON, AND GARDEN GROVE
921 PM PDT WED OCT 7 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES IN THE LOW
TO MID 90S. NIGHTS WILL BE WARM WITH LOW TEMPERATURES IN THE UPPER
60S AND LOW 70S.
* WHERE...ORANGE COUNTY INLAND AREAS.
* WHEN...UNTIL 8 PM PDT THURSDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT 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 AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
SS
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