799  
WGUS66 KLOX 172221 CCA  
FFALOX  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
FLOOD WATCH...CORRECTED  
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA  
321 PM PDT WED SEP 17 2025  
 
.SMALL MODIFICATION IN TIMING DESCRIPTION, OTHERWISE NO CHANGE.  
 
CAZ038-344-345-353-362-369-370-376>383-548-190900-  
/O.COR.KLOX.FA.A.0005.250918T1200Z-250919T0900Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
CUYAMA VALLEY-SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-SAN LUIS  
OBISPO COUNTY MOUNTAINS-SANTA BARBARA COUNTY INTERIOR MOUNTAINS-  
MALIBU COAST-WESTERN SANTA MONICA MOUNTAINS RECREATIONAL AREA-  
EASTERN SANTA MONICA MOUNTAINS RECREATIONAL AREA-SOUTHERN VENTURA  
COUNTY MOUNTAINS-NORTHERN VENTURA COUNTY MOUNTAINS-INTERSTATE  
5 CORRIDOR-WESTERN SAN GABRIEL MOUNTAINS AND HIGHWAY 14 CORRIDOR-  
EASTERN SAN GABRIEL MOUNTAINS-WESTERN ANTELOPE VALLEY FOOTHILLS-  
EASTERN ANTELOPE VALLEY FOOTHILLS-ANTELOPE VALLEY-LOS ANGELES  
COUNTY SAN GABRIEL VALLEY-  
INCLUDING THE CITIES OF GORMAN, LLANO, LOCKWOOD VALLEY, ELIZABETH  
LAKE, EL MONTE, PASADENA, TOPANGA, PACIFIC PALISADES, VALYERMO,  
POMONA, ROSE VALLEY, TEJON PASS, PEARBLOSSOM, WRIGHTWOOD, MALIBU  
BOWL, PYRAMID LAKE, PALMDALE, LAKE PALMDALE, OZENA, MOUNT WILSON,  
THE ANGELES CREST HIGHWAY, LA PANZA RANGE, WARM SPRINGS, SHANDON,  
CRESTON, FIGUEROA MOUNTAIN, LANCASTER, BIG PINE MOUNTAIN, CARRIZO  
PLAIN, CALIENTE RANGE, MOUNT BALDY, MATILIJA, EAST LOS ANGELES,  
SANTA MARGARITA LAKE, ACTON, MILL CREEK, LAKE LOS ANGELES, NEW  
CUYAMA, SAN RAFAEL MOUNTAIN, MALIBU, TOPATOPA MOUNTAINS, SAN  
GABRIEL, AND MOUNT PINOS  
321 PM PDT WED SEP 17 2025  
 
...FLOOD WATCH IN EFFECT FROM EARLY THURSDAY MORNING THROUGH LATE  
THURSDAY NIGHT...  
 
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.  
 
* WHERE...A PORTION OF SOUTHWEST CALIFORNIA, INCLUDING THE FOLLOWING  
AREAS, ANTELOPE VALLEY, CUYAMA VALLEY, EASTERN ANTELOPE VALLEY  
FOOTHILLS, EASTERN SAN GABRIEL MOUNTAINS, EASTERN SANTA MONICA  
MOUNTAINS RECREATIONAL AREA, INTERSTATE 5 CORRIDOR, LOS ANGELES  
COUNTY SAN GABRIEL VALLEY, MALIBU COAST, NORTHERN VENTURA COUNTY  
MOUNTAINS, SAN LUIS OBISPO COUNTY INTERIOR VALLEYS, SAN LUIS  
OBISPO COUNTY MOUNTAINS, SANTA BARBARA COUNTY INTERIOR MOUNTAINS,  
SOUTHERN VENTURA COUNTY MOUNTAINS, WESTERN ANTELOPE VALLEY  
FOOTHILLS, WESTERN SAN GABRIEL MOUNTAINS AND HIGHWAY 14 CORRIDOR  
AND WESTERN SANTA MONICA MOUNTAINS RECREATIONAL AREA.  
 
* WHEN...FROM EARLY THURSDAY MORNING THROUGH LATE THURSDAY NIGHT.  
 
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,  
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.  
 
* ADDITIONAL DETAILS...  
- RAIN RATES UP TO OR LOCALLY EXCEEDING ONE HALF INCH PER HOUR  
ARE POSSIBLE.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO  
FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.  
 

 
 

 
 
MW  
 
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