728  
FSUS46 KSGX 302245  
QPSSGX  
 
QUANTITATIVE PRECIPITATION FORECAST  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
345 PM PDT SUN MAR 30 2025  
 
PRECIPITATION FORECAST IN INCHES IN 6-HOUR PERIODS...  
[ BEGINNING TIMES FOR EACH PERIOD ARE IN LOCAL TIME... ]  
[ FOR EXAMPLE...05THU ]  
[ ...11THU IS A FORECAST FOR 5 AM TO 11 AM THURSDAY ]  
[ FOR EXAMPLE...23THU ]  
[ ...05FRI IS A FORECAST FOR 11 PM THURSDAY TO 5 AM FRIDAY]  
 
   
..ORANGE COUNTY COASTAL AREAS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
HUNTINGTON BEACH  
0.00 0.03 0.11 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
NEWPORT BEACH  
0.00 0.02 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
LAGUNA BEACH  
0.00 0.02 0.16 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
SAN CLEMENTE  
0.00 0.01 0.15 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
 
   
..ORANGE COUNTY INLAND AREAS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
ANAHEIM  
0.00 0.03 0.07 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
FULLERTON  
0.00 0.03 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
BREA  
0.00 0.03 0.11 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
VILLA PARK  
0.00 0.03 0.08 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
 
   
..SANTA ANA MOUNTAINS AND FOOTHILLS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
FREMONT CANYON  
0.00 0.01 0.10 0.03 0.04 0.00 0.00 0.00 0.00 0.00  
SILVERADO CANYON, 3 MI EAST OF SILVERADO  
0.00 0.05 0.20 0.08 0.07 0.00 0.00 0.00 0.00 0.00  
MODJESKA PRESERVE  
0.00 0.03 0.15 0.06 0.04 0.00 0.00 0.00 0.00 0.00  
SANTIAGO PEAK  
0.00 0.05 0.24 0.11 0.05 0.02 0.00 0.00 0.00 0.00  
EL CARISO  
0.00 0.01 0.17 0.06 0.00 0.00 0.00 0.00 0.00 0.00  
SANTA ROSA PLATEAU  
0.00 0.00 0.05 0.04 0.00 0.00 0.00 0.00 0.00 0.00  
 
   
..SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
ONTARIO  
0.00 0.02 0.08 0.03 0.00 0.00 0.00 0.00 0.00 0.00  
SAN BERNARDINO  
0.00 0.02 0.11 0.02 0.02 0.00 0.00 0.00 0.00 0.00  
BEAUMONT  
0.00 0.00 0.05 0.04 0.01 0.02 0.00 0.00 0.04 0.00  
RIVERSIDE  
0.00 0.01 0.06 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
PERRIS VALLEY CHANNEL  
0.00 0.00 0.02 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
PRADO DAM  
0.00 0.02 0.07 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
TEMECULA  
0.00 0.00 0.01 0.03 0.00 0.00 0.00 0.00 0.00 0.00  
HEMET  
0.00 0.01 0.06 0.04 0.05 0.03 0.00 0.00 0.01 0.00  
 
   
..RIVERSIDE COUNTY MOUNTAINS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
IDYLLWILD  
0.00 0.04 0.24 0.12 0.03 0.00 0.00 0.00 0.03 0.00  
 
   
..COACHELLA VALLEY
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
PALM SPRINGS  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
THERMAL  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
 
   
..SAN BERNARDINO COUNTY MOUNTAINS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
SAN ANTONIO DAM  
0.00 0.05 0.17 0.04 0.04 0.01 0.00 0.00 0.00 0.00  
LYTLE CREEK  
0.00 0.06 0.25 0.08 0.03 0.03 0.00 0.00 0.01 0.00  
WRIGHTWOOD  
0.00 0.00 0.06 0.01 0.00 0.00 0.00 0.00 0.00 0.00  
LAKE ARROWHEAD  
0.00 0.05 0.23 0.15 0.09 0.07 0.00 0.00 0.03 0.00  
BIG BEAR LAKE  
0.00 0.00 0.04 0.03 0.00 0.00 0.00 0.00 0.01 0.00  
BIG MORONGO CANYON  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
 
   
..APPLE AND LUCERNE VALLEYS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
HESPERIA  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
VICTORVILLE  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
APPLE VALLEY  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
 
   
..SAN DIEGO COUNTY COASTAL AREAS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
OCEANSIDE  
0.00 0.00 0.09 0.04 0.00 0.00 0.00 0.00 0.00 0.00  
MIRAMAR  
0.00 0.00 0.03 0.04 0.00 0.00 0.00 0.00 0.00 0.00  
SAN DIEGO INTERNATIONAL AIRPORT  
0.00 0.00 0.03 0.04 0.00 0.00 0.00 0.00 0.00 0.00  
CHULA VISTA  
0.00 0.00 0.01 0.04 0.00 0.00 0.00 0.00 0.00 0.00  
SAN YSIDRO  
0.00 0.00 0.00 0.03 0.00 0.00 0.00 0.00 0.00 0.01  
 
   
..SAN DIEGO COUNTY VALLEYS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
FALLBROOK  
0.00 0.00 0.06 0.07 0.00 0.00 0.00 0.00 0.00 0.00  
RANCHO BERNARDO  
0.00 0.00 0.05 0.07 0.00 0.00 0.00 0.00 0.00 0.01  
LA MESA  
0.00 0.00 0.01 0.04 0.00 0.00 0.00 0.00 0.00 0.01  
EL CAJON  
0.00 0.00 0.01 0.03 0.00 0.00 0.00 0.00 0.00 0.01  
 
   
..SAN DIEGO COUNTY MOUNTAINS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
PALOMAR MOUNTAIN  
0.00 0.00 0.03 0.05 0.00 0.01 0.00 0.00 0.01 0.01  
JULIAN  
0.00 0.03 0.12 0.22 0.11 0.06 0.00 0.00 0.01 0.01  
MOUNT LAGUNA  
0.00 0.00 0.06 0.15 0.05 0.02 0.00 0.00 0.01 0.01  
CAMPO  
0.00 0.00 0.00 0.04 0.03 0.01 0.00 0.00 0.02 0.03  
 
   
..SAN DIEGO COUNTY DESERTS
 
 
17SUN 23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE  
23SUN 05MON 11MON 17MON 23MON 05TUE 11TUE 17TUE 23TUE 05WED  
 
BORREGO SPRINGS  
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
 

 
 
DISCUSSION...  
A WEAKENING ATMOSPHERIC RIVER WILL MOVE INTO SOUTHERN CALIFORNIA  
EARLY MONDAY, BRINGING WIDESPREAD BUT MOSTLY LIGHT PRECIPITATION  
ALONG AND WEST OF THE MOUNTAINS MONDAY MORNING THROUGH MONDAY  
EVENING, WITH ADDITIONAL LIGHT SHOWERS ACROSS SAN DIEGO COUNTY,  
MOSTLY IN THE FOOTHILLS AND MOUNTAINS, INTO TUESDAY. AMOUNTS OF  
0.15 OR LESS ARE EXPECTED FOR COASTAL AREAS AND VALLEYS, WITH A  
20-35% CHANCE OF 0.10" OR MORE AND A 5-15% CHANCE OF 0.25" OR  
MORE, HIGHEST IN ORANGE COUNTY. FOR THE MOUNTAINS, THE NBM HAS A A  
15-30% CHANCE OF 0.25" OR MORE AND A 5-15% CHANCE OF 0.50" OR  
MORE, THOUGH A FEW HIGH RESOLUTION MODELS ARE SHOWING 0.50-1" OVER  
THE FAVORED COASTAL MOUNTAIN SLOPES. RAINFALL RATES ARE EXPECTED  
TO REMAIN BELOW 0.10"/HR FOR THE COASTS AND VALLEYS AND 0.25"/HR  
OR LESS IN THE MOUNTAINS.  
 
THERE IS A 15-30% CHANCE OF SHOWERS TUESDAY NIGHT INTO WEDNESDAY  
MORNING, MAINLY ACROSS THE FAR INLAND VALLEYS AND MOUNTAINS,  
FOLLOWED BY A 15-25% CHANCE OF LIGHT RAIN ALONG AND WEST OF THE  
MOUNTAINS THURSDAY AND FRIDAY. MODELS HAVE CONTINUED TO TREND MUCH  
DRIER WITH THIS LATE WEAK WEATHER SYSTEM.  
 

 
 
SS  
 
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