057  
FGUS76 KSGX 221040  
ESFSGX  
 
HYDROLOGIC FORECAST FOR EXTREME SOUTHWESTERN CALIFORNIA  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
340 AM PDT SUN JUL 22 2018  
   
..FLASH FLOOD POTENTIAL INDEX FOR EXTREME SOUTHWESTERN CALIFORNIA
 
 
   
SYNOPSIS
 
 
MONSOONAL MOISTURE CONTINUES TO SLOWLY DECREASE. A FEW ISOLATED  
THUNDERSTORMS ARE POSSIBLE AGAIN THIS AFTERNOON...MAINLY OVER THE  
HIGHER ELEVATIONS OF THE SAN BERNARDINO MOUNTAINS AND ALONG THE  
EAST SLOPES OF THE MOUNTAINS OF RIVERSIDE AND SAN DIEGO COUNTIES.  
BRIEF HEAVY RAINFALL IS POSSIBLE...BUT THE RISK OF FLASH FLOODING  
IS LOW.  
 

 
 
CAZ055-056-058-230330-  
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-  
SAN DIEGO COUNTY MOUNTAINS-  
INCLUDING THE CITIES OF CRESTLINE, LAKE ARROWHEAD, BIG BEAR CITY,  
BIG BEAR LAKE, RUNNING SPRINGS, WRIGHTWOOD, IDYLLWILD-PINE COVE,  
JULIAN, AND PINE VALLEY  
340 AM PDT SUN JUL 22 2018  
   
TODAY...LOW
 
THE RISK OF FLASH FLOODING IS MINIMAL.    
MONDAY...NONE
 
NO FLASH FLOODING IS EXPECTED.  
 

 
 
CAZ060>062-065-230330-  
APPLE AND LUCERNE VALLEYS-COACHELLA VALLEY-  
SAN DIEGO COUNTY DESERTS-SAN GORGONIO PASS NEAR BANNING-  
INCLUDING THE CITIES OF VICTORVILLE, HESPERIA, APPLE VALLEY,  
LUCERNE VALLEY, INDIO, PALM SPRINGS, CATHEDRAL CITY, PALM DESERT,  
PALM DESERT COUNTRY, LA QUINTA, COACHELLA, BORREGO SPRINGS,  
BANNING, AND DESERT HOT SPRINGS  
340 AM PDT SUN JUL 22 2018  
   
TODAY...NONE
 
NO FLASH FLOODING IS EXPECTED.    
MONDAY...NONE
 
NO FLASH FLOODING IS EXPECTED.  
 

 
 
CAZ043-048-050-057-552-554-230330-  
SAN DIEGO COUNTY COASTAL AREAS-  
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-  
SAN DIEGO COUNTY VALLEYS-SANTA ANA MOUNTAINS AND FOOTHILLS-  
ORANGE COUNTY COASTAL AREAS-ORANGE COUNTY INLAND AREAS-  
INCLUDING THE CITIES OF OCEANSIDE, VISTA, CARLSBAD, ENCINITAS,  
CHULA VISTA, NATIONAL CITY, SAN DIEGO, RIVERSIDE, SAN BERNARDINO,  
ONTARIO, MORENO VALLEY, FONTANA, RANCHO CUCAMONGA, CORONA,  
ESCONDIDO, EL CAJON, SAN MARCOS, LA MESA, SANTEE, POWAY,  
HUNTINGTON BEACH, COSTA MESA, NEWPORT BEACH, LAGUNA BEACH,  
SAN CLEMENTE, SANTA ANA, ANAHEIM, GARDEN GROVE, IRVINE, ORANGE,  
FULLERTON, AND MISSION VIEJO  
340 AM PDT SUN JUL 22 2018  
   
TODAY...NONE
 
NO FLASH FLOODING IS EXPECTED.    
MONDAY...NONE
 
NO FLASH FLOODING IS EXPECTED.  
 

 
 
17  
 
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