048
WWUS76 KSGX 081156
NPWSGX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
456 AM PDT SAT AUG 8 2026
CAZ060-082115-
/O.CON.KSGX.XH.W.0007.000000T0000Z-260810T0300Z/
APPLE AND LUCERNE VALLEYS-
INCLUDING THE CITIES OF LUCERNE VALLEY, APPLE VALLEY, HESPERIA,
AND VICTORVILLE
456 AM PDT SAT AUG 8 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES OF 100 TO 108
EXPECTED.
* WHERE...APPLE AND LUCERNE VALLEYS.
* WHEN...UNTIL 8 PM PDT SUNDAY.
* 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.
CAZ061-062-065-082115-
/O.CON.KSGX.XH.W.0007.000000T0000Z-260810T0300Z/
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-SAN GORGONIO PASS NEAR
BANNING-
INCLUDING THE CITIES OF LA QUINTA, PALM DESERT COUNTRY, BORREGO
SPRINGS, PALM SPRINGS, PALM DESERT, CATHEDRAL CITY, INDIO, AND
COACHELLA
456 AM PDT SAT AUG 8 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HIGH TEMPERATURES OF 106 TO
112 EXPECTED.
* WHERE...COACHELLA VALLEY, SAN DIEGO COUNTY DESERTS, AND SAN
GORGONIO PASS NEAR BANNING.
* WHEN...UNTIL 8 PM PDT SUNDAY.
* 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.
CAZ048-082115-
/O.CON.KSGX.HT.Y.0008.000000T0000Z-260810T0300Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
INCLUDING THE CITIES OF CORONA, RANCHO CUCAMONGA, RIVERSIDE,
FONTANA, ONTARIO, SAN BERNARDINO, AND MORENO VALLEY
456 AM PDT SAT AUG 8 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY
* WHAT...HIGH TEMPERATURES IN THE MID 90S TO 103 EXPECTED.
* WHERE...SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND
EMPIRE.
* WHEN...UNTIL 8 PM PDT SUNDAY.
* IMPACTS...HOT TEMPERATURES 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.
CAZ055-082115-
/O.CON.KSGX.HT.Y.0008.000000T0000Z-260810T0300Z/
SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE CITIES OF BIG BEAR CITY, CRESTLINE, RUNNING
SPRINGS, LAKE ARROWHEAD, BIG BEAR LAKE, AND WRIGHTWOOD
456 AM PDT SAT AUG 8 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY
* WHAT...HIGH TEMPERATURES MOSTLY IN THE MID 80S TO UPPER 90S BELOW
6500 FEET EXPECTED.
* WHERE...SAN BERNARDINO COUNTY MOUNTAINS.
* WHEN...UNTIL 8 PM PDT SUNDAY.
* IMPACTS...HOT TEMPERATURES 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.
CAZ056-082115-
/O.CON.KSGX.HT.Y.0008.000000T0000Z-260810T0300Z/
RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE CITIES OF IDYLLWILD-PINE COVE
456 AM PDT SAT AUG 8 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY
* WHAT...HIGH TEMPERATURES MOSTLY IN THE MID 80S TO UPPER 90S BELOW
6500 FEET EXPECTED.
* WHERE...RIVERSIDE COUNTY MOUNTAINS.
* WHEN...UNTIL 8 PM PDT SUNDAY.
* IMPACTS...HOT TEMPERATURES 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.
CAZ058-082115-
/O.CON.KSGX.HT.Y.0008.000000T0000Z-260810T0300Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE CITIES OF PINE VALLEY AND JULIAN
456 AM PDT SAT AUG 8 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY
* WHAT...HIGH TEMPERATURES MOSTLY IN THE MID 80S TO UPPER 90S
EXPECTED.
* WHERE...SAN DIEGO COUNTY MOUNTAINS.
* WHEN...UNTIL 8 PM PDT SUNDAY.
* IMPACTS...HOT TEMPERATURES 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.
CAZ050-082115-
/O.CON.KSGX.HT.Y.0008.260808T1700Z-260810T0300Z/
SAN DIEGO COUNTY VALLEYS-
INCLUDING THE CITIES OF SAN MARCOS, ESCONDIDO, EL CAJON, LA MESA,
POWAY, AND SANTEE
456 AM PDT SAT AUG 8 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
PDT SUNDAY...
* WHAT...HIGH TEMPERATURES IN THE MID TO UPPER 90S.
* WHERE...SAN DIEGO COUNTY VALLEYS.
* WHEN...FROM 10 AM THIS MORNING TO 8 PM PDT SUNDAY.
* IMPACTS...HOT TEMPERATURES 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.
CAZ057-554-082115-
/O.CON.KSGX.HT.Y.0008.260808T1700Z-260810T0300Z/
SANTA ANA MOUNTAINS AND FOOTHILLS-ORANGE COUNTY INLAND AREAS-
INCLUDING THE CITIES OF GARDEN GROVE, IRVINE, SANTA ANA, ANAHEIM,
ORANGE, FULLERTON, AND MISSION VIEJO
456 AM PDT SAT AUG 8 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
PDT SUNDAY...
* WHAT...HIGH TEMPERATURES IN THE LOW 90S EAST OF INTERSTATE 5. HIGH
TEMPERATURES IN THE MID-90S IN THE SANTA ANA MOUNTAINS.
* WHERE...ORANGE COUNTY INLAND AREAS AND SANTA ANA MOUNTAINS AND
FOOTHILLS.
* WHEN...FROM 10 AM THIS MORNING TO 8 PM PDT SUNDAY.
* IMPACTS...HOT TEMPERATURES 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.
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