813
WGUS66 KSGX 122003
FFASGX
FLOOD WATCH
NATIONAL WEATHER SERVICE SAN DIEGO CA
103 PM PDT WED MAR 12 2025
CAZ043-048-050-055>058-552-554-130515-
/O.CON.KSGX.FA.A.0002.250313T0500Z-250314T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN DIEGO COUNTY COASTAL AREAS-SAN BERNARDINO AND RIVERSIDE
COUNTY VALLEYS-THE INLAND EMPIRE-SAN DIEGO COUNTY VALLEYS-SAN
BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-SANTA ANA
MOUNTAINS AND FOOTHILLS-SAN DIEGO COUNTY MOUNTAINS-ORANGE COUNTY
COASTAL AREAS-ORANGE COUNTY INLAND AREAS-
INCLUDING THE CITIES OF HUNTINGTON BEACH, MORENO VALLEY, LA MESA,
SAN MARCOS, RUNNING SPRINGS, SAN CLEMENTE, MISSION VIEJO, SANTEE,
WRIGHTWOOD, FONTANA, RIVERSIDE, LAGUNA BEACH, RANCHO CUCAMONGA,
OCEANSIDE, JULIAN, IRVINE, CORONA, FULLERTON, GARDEN GROVE, EL
CAJON, LAKE ARROWHEAD, NEWPORT BEACH, ESCONDIDO, IDYLLWILD-PINE
COVE, PINE VALLEY, ENCINITAS, CRESTLINE, BIG BEAR LAKE, NATIONAL
CITY, SAN DIEGO, CARLSBAD, COSTA MESA, POWAY, SANTA ANA, ORANGE,
ONTARIO, CHULA VISTA, SAN BERNARDINO, VISTA, BIG BEAR CITY, AND
ANAHEIM
103 PM PDT WED MAR 12 2025
...FLOOD WATCH REMAINS IN EFFECT FROM 10 PM PDT THIS EVENING THROUGH
THURSDAY AFTERNOON...
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.
* WHERE...A PORTION OF SOUTHWEST CALIFORNIA, INCLUDING THE FOLLOWING
AREAS, 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
DIEGO COUNTY COASTAL AREAS, SAN DIEGO COUNTY MOUNTAINS, SAN DIEGO
COUNTY VALLEYS AND SANTA ANA MOUNTAINS AND FOOTHILLS.
* WHEN...FROM 10 PM PDT THIS EVENING THROUGH THURSDAY AFTERNOON.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
DEBRIS FLOW ARE POSSIBLE NEAR RECENT BURN SCARS. AREAS OF FLOODING
POSSIBLE IN THE MOUNTAINS BELOW THE SNOW LEVEL.
* ADDITIONAL DETAILS...
- AN ATMOSPHERIC RIVER WILL GENERATE MODERATE TO HEAVY RAINFALL
TONIGHT THROUGH THURSDAY AFTERNOON. RAINFALL RATES OF 0.50 TO
0.75 INCH PER HOUR ARE EXPECTED, LOCALLY UP TO ONE INCH PER
HOUR POSSIBLE IN THE MOUNTAINS BELOW THE SNOW LEVEL AND WHERE
THUNDERSTORMS DEVELOP. THIS WATCH INCLUDES THE FOLLOWING BURN
SCARS: BRIDGE, LINE, AND AIRPORT. THE HEAVIEST RAINFALL FOR
LATE TONIGHT THROUGH THURSDAY MORNING IS EXPECTED WITH THE
PASSAGE OF THE COLD FRONT WITH ANOTHER ROUND OF LOCALLY HEAVY
RAIN POSSIBLE THURSDAY AFTERNOON WITH ANY THUNDERSTORMS THAT
DEVELOP.
- 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
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