288
WGUS66 KSGX 242115
FFASGX
FLOOD WATCH
NATIONAL WEATHER SERVICE SAN DIEGO CA
115 PM PST WED DEC 24 2025
CAZ048-055>057-060-061-065-552-554-250600-
/O.CON.KSGX.FA.A.0006.000000T0000Z-251225T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-SAN
BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-SANTA ANA
MOUNTAINS AND FOOTHILLS-APPLE AND LUCERNE VALLEYS-COACHELLA
VALLEY-SAN GORGONIO PASS NEAR BANNING-ORANGE COUNTY COASTAL AREAS-
ORANGE COUNTY INLAND AREAS-
INCLUDING THE CITIES OF SANTA ANA, LUCERNE VALLEY, HUNTINGTON
BEACH, ORANGE, ONTARIO, LA QUINTA, SAN BERNARDINO, RANCHO
CUCAMONGA, PALM DESERT, LAGUNA BEACH, MORENO VALLEY,
IDYLLWILD-PINE COVE, VICTORVILLE, PALM SPRINGS, BIG BEAR LAKE,
APPLE VALLEY, RIVERSIDE, COSTA MESA, NEWPORT BEACH, CORONA, SAN
CLEMENTE, WRIGHTWOOD, FONTANA, FULLERTON, PALM DESERT COUNTRY,
INDIO, HESPERIA, CRESTLINE, IRVINE, LAKE ARROWHEAD, CATHEDRAL
CITY, COACHELLA, GARDEN GROVE, MISSION VIEJO, RUNNING SPRINGS,
ANAHEIM, AND BIG BEAR CITY
115 PM PST WED DEC 24 2025
..FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...A PORTION OF SOUTHWEST CALIFORNIA, INCLUDING THE FOLLOWING
AREAS, APPLE AND LUCERNE VALLEYS, COACHELLA VALLEY, ORANGE COUNTY
COASTAL AREAS, ORANGE COUNTY INLAND AREAS, RIVERSIDE COUNTY
MOUNTAINS, SAN BERNARDINO COUNTY MOUNTAINS, SAN BERNARDINO AND
RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE, SAN GORGONIO PASS NEAR
BANNING AND SANTA ANA MOUNTAINS AND FOOTHILLS.
* WHEN...UNTIL 10 PM PST THIS EVENING.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
FLOODING MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. MUD AND
DEBRIS FLOW ARE POSSIBLE NEAR AND IN BURN SCARS, INCLUDING THE
AIRPORT, BRIDGE AND LINE BURN SCARS.
* ADDITIONAL DETAILS...
- AN ATMOSPHERIC RIVER WILL BRING WIDESPREAD MODERATE TO HEAVY
RAIN TO THE REGION TODAY. THE HEAVIEST AND MOST WIDESPREAD
RAIN IS EXPECTED THROUGH THIS EVENING. PEAK RAINFALL RATES OF
0.50 TO 1 INCH PER HOUR ARE EXPECTED. THERE IS A POTENTIAL
FOR LOCALLY HEAVIER HOURLY RAINFALL RATES TO DEVELOP WITH
CONVECTION EMBEDDED IN THE MAIN RAIN BAND OR IN THUNDERSTORMS
AFTER THE MAIN BAND PASSES. ISOLATED HEAVY SHOWERS COULD
CONTINUE INTO THURSDAY BUT IMPACTS FROM ANY ADDITIONAL RAIN
ARE EXPECTED TO BE MORE LOCALIZED.
SNOW LEVELS ARE EXPECTED TO REMAIN ABOVE 8000 FEET DURING
PERIOD OF HEAVIEST PRECIPITATION BRINGING A HEIGHTENED RISK
OF MUD SLIDES, DEBRIS FLOW, AND AREAS OF FLASH FLOODING IN
THE SAN BERNARDINO COUNTY MOUNTAINS.
- HTTPS://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD
WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED
TO TAKE ACTION SHOULD FLOODING DEVELOP.
BE ALERT IN THE MOUNTAINS FOR ROCKSLIDES AND ROCKS IN THE ROAD.
CAZ043-050-058-062-250600-
/O.CON.KSGX.FA.A.0006.000000T0000Z-251225T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN DIEGO COUNTY COASTAL AREAS-SAN DIEGO COUNTY VALLEYS-SAN DIEGO
COUNTY MOUNTAINS-SAN DIEGO COUNTY DESERTS-
INCLUDING THE CITIES OF EL CAJON, ENCINITAS, SANTEE, PINE VALLEY,
NATIONAL CITY, SAN DIEGO, VISTA, SAN MARCOS, BORREGO SPRINGS,
POWAY, CHULA VISTA, CARLSBAD, LA MESA, JULIAN, OCEANSIDE, AND
ESCONDIDO
115 PM PST WED DEC 24 2025
..FLOOD WATCH REMAINS IN EFFECT UNTIL 1 AM PST THURSDAY
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...A PORTION OF SOUTHWEST CALIFORNIA, INCLUDING THE FOLLOWING
AREAS, SAN DIEGO COUNTY COASTAL AREAS, SAN DIEGO COUNTY DESERTS,
SAN DIEGO COUNTY MOUNTAINS AND SAN DIEGO COUNTY VALLEYS.
* WHEN...UNTIL 1 AM PST THURSDAY.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
FLOODING MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS.
* ADDITIONAL DETAILS...
- AN ATMOSPHERIC RIVER WILL LIKELY BRING WIDESPREAD MODERATE TO
HEAVY RAIN TO THE AREA TODAY. HEAVIEST MOST WIDESPREAD RAIN
IS EXPECTED THROUGH THIS EVENING. PEAK RAINFALL RATES OF 0.50
TO 1 INCH PER HOUR ARE EXPECTED. THERE IS A POTENTIAL FOR
LOCALLY HEAVIER HOURLY RAINFALL RATES TO DEVELOP WITH
CONVECTION EMBEDDED IN THE MAIN RAIN BAND OR IN THUNDERSTORMS
AFTER THE MAIN BAND PASSES. ISOLATED HEAVY SHOWERS COULD
CONTINUE INTO THURSDAY BUT IMPACTS FROM ANY ADDITIONAL RAIN
ARE EXPECTED TO BE MORE LOCALIZED.
- HTTPS://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD
WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED
TO TAKE ACTION SHOULD FLOODING DEVELOP.
CO
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page