168
FSUS46 KSGX 230020
QPSSGX
QUANTITATIVE PRECIPITATION FORECAST
NATIONAL WEATHER SERVICE SAN DIEGO CA
420 PM PST MON DEC 22 2025
PRECIPITATION FORECAST IN INCHES IN 6-HOUR PERIODS...
[ BEGINNING TIMES FOR EACH PERIOD ARE IN LOCAL TIME... ]
[ FOR EXAMPLE...04THU ]
[ ...10THU IS A FORECAST FOR 4 AM TO 10 AM THURSDAY ]
[ FOR EXAMPLE...22THU ]
[ ...04FRI IS A FORECAST FOR 10 PM THURSDAY TO 4 AM FRIDAY]
..ORANGE COUNTY COASTAL AREAS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
HUNTINGTON BEACH
0.00 0.00 0.01 0.01 0.06 0.49 1.29 0.80 0.21 0.10
NEWPORT BEACH
0.00 0.00 0.02 0.00 0.01 0.41 1.25 0.86 0.22 0.10
LAGUNA BEACH
0.00 0.00 0.00 0.00 0.01 0.36 1.23 0.91 0.32 0.10
SAN CLEMENTE
0.00 0.00 0.02 0.01 0.01 0.30 1.27 1.07 0.35 0.12
..ORANGE COUNTY INLAND AREAS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
ANAHEIM
0.00 0.00 0.00 0.00 0.01 0.58 1.32 0.89 0.46 0.13
FULLERTON
0.00 0.00 0.00 0.00 0.05 0.62 1.35 0.85 0.28 0.15
BREA
0.00 0.00 0.00 0.01 0.03 0.68 1.55 0.99 0.32 0.21
VILLA PARK
0.00 0.00 0.00 0.00 0.01 0.55 1.43 1.02 0.33 0.12
..SANTA ANA MOUNTAINS AND FOOTHILLS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
FREMONT CANYON
0.00 0.00 0.00 0.00 0.01 0.52 1.45 1.07 0.38 0.12
SILVERADO CANYON, 3 MI EAST OF SILVERADO
0.00 0.00 0.00 0.01 0.04 0.56 2.06 1.67 0.75 0.19
MODJESKA PRESERVE
0.00 0.00 0.00 0.00 0.03 0.54 1.70 1.35 0.54 0.15
SANTIAGO PEAK
0.00 0.00 0.00 0.00 0.03 0.50 1.89 1.59 0.58 0.19
EL CARISO
0.00 0.00 0.00 0.00 0.01 0.31 1.30 1.20 0.43 0.13
SANTA ROSA PLATEAU
0.00 0.00 0.00 0.00 0.01 0.27 1.44 1.31 0.40 0.35
..SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
ONTARIO
0.00 0.00 0.00 0.00 0.01 0.57 1.43 1.06 0.35 0.15
SAN BERNARDINO
0.00 0.00 0.00 0.00 0.01 0.37 1.16 1.09 0.28 0.13
BEAUMONT
0.00 0.00 0.00 0.00 0.01 0.25 1.16 1.33 0.40 0.62
RIVERSIDE
0.00 0.00 0.00 0.00 0.01 0.33 1.11 0.93 0.26 0.12
PERRIS VALLEY CHANNEL
0.00 0.00 0.00 0.00 0.01 0.21 1.10 1.09 0.36 0.13
PRADO DAM
0.00 0.00 0.00 0.00 0.01 0.45 1.34 1.01 0.32 0.12
TEMECULA
0.00 0.00 0.00 0.00 0.01 0.18 1.18 1.20 0.47 0.45
HEMET
0.00 0.00 0.00 0.00 0.00 0.13 0.86 1.01 0.26 0.43
..RIVERSIDE COUNTY MOUNTAINS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
IDYLLWILD
0.00 0.00 0.00 0.02 0.00 0.18 1.37 1.76 0.63 0.27
..COACHELLA VALLEY
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
PALM SPRINGS
0.00 0.00 0.00 0.00 0.00 0.04 0.48 0.67 0.17 0.05
THERMAL
0.00 0.00 0.00 0.00 0.00 0.01 0.28 0.42 0.09 0.01
..SAN BERNARDINO COUNTY MOUNTAINS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
SAN ANTONIO DAM
0.00 0.00 0.00 0.01 0.10 1.68 2.57 1.85 1.31 0.27
LYTLE CREEK
0.00 0.00 0.00 0.02 0.06 1.46 2.55 2.05 1.00 0.42
WRIGHTWOOD
0.00 0.00 0.00 0.00 0.03 0.81 1.56 1.21 0.48 0.12
LAKE ARROWHEAD
0.00 0.00 0.00 0.01 0.00 0.70 1.97 1.96 1.18 0.31
BIG BEAR LAKE
0.00 0.00 0.00 0.00 0.00 0.23 1.19 1.30 0.45 0.20
BIG MORONGO CANYON
0.00 0.00 0.00 0.00 0.00 0.10 0.80 1.02 1.11 0.22
..APPLE AND LUCERNE VALLEYS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
HESPERIA
0.00 0.00 0.00 0.00 0.00 0.26 0.86 0.82 0.24 0.07
VICTORVILLE
0.00 0.00 0.00 0.00 0.00 0.31 1.00 0.94 0.17 0.05
APPLE VALLEY
0.00 0.00 0.00 0.00 0.00 0.24 0.86 0.85 0.23 0.05
..SAN DIEGO COUNTY COASTAL AREAS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
OCEANSIDE
0.00 0.00 0.00 0.00 0.01 0.19 1.24 1.10 0.31 0.28
MIRAMAR
0.00 0.00 0.00 0.00 0.01 0.10 0.92 0.96 0.28 0.11
SAN DIEGO INTERNATIONAL AIRPORT
0.00 0.00 0.00 0.00 0.01 0.11 0.88 0.90 0.24 0.10
CHULA VISTA
0.00 0.00 0.00 0.00 0.01 0.08 0.67 0.81 0.24 0.09
SAN YSIDRO
0.00 0.00 0.00 0.00 0.01 0.07 0.69 0.89 0.23 0.10
..SAN DIEGO COUNTY VALLEYS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
FALLBROOK
0.00 0.00 0.00 0.00 0.01 0.18 1.34 1.22 0.41 0.34
RANCHO BERNARDO
0.00 0.00 0.00 0.00 0.01 0.11 0.96 1.05 0.33 0.12
LA MESA
0.00 0.00 0.00 0.00 0.01 0.08 0.75 0.93 0.41 0.13
EL CAJON
0.00 0.00 0.00 0.00 0.01 0.07 0.70 0.90 0.38 0.14
..SAN DIEGO COUNTY MOUNTAINS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
PALOMAR MOUNTAIN
0.00 0.00 0.00 0.00 0.01 0.14 1.22 1.43 0.51 0.33
JULIAN
0.00 0.00 0.00 0.00 0.00 0.05 0.84 1.27 0.33 0.17
MOUNT LAGUNA
0.00 0.00 0.00 0.02 0.00 0.05 0.66 1.13 0.29 0.10
CAMPO
0.00 0.00 0.00 0.00 0.01 0.04 0.41 0.80 0.22 0.08
..SAN DIEGO COUNTY DESERTS
16MON 22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED
22MON 04TUE 10TUE 16TUE 22TUE 04WED 10WED 16WED 22WED 04THU
BORREGO SPRINGS
0.00 0.00 0.00 0.00 0.00 0.01 0.28 0.44 0.10 0.02
LIGHTER RAIN COULD DEVELOP AS EARLY AS TUESDAY IN ADVANCE OF A
LOW PRESSURE SYSTEM OFF THE CALIFORNIA COAST. HEAVIER RAINFALL
WILL DEVELOP AND SPREAD SOUTHWARD ACROSS THE AREA TUESDAY NIGHT
AND EARLY WEDNESDAY WITH WIDESPREAD HEAVY RAINFALL FOR WEDNESDAY
MORNING THROUGH WEDNESDAY EVENING. SHOWERS WILL CONTINUE FOR LATE
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT, BUT WITH ADDITIONAL
PRECIPITATION AMOUNTS NOT AS HEAVY.
THROUGH EARLY THURSDAY MORNING, FOR ORANGE AND SOUTHWESTERN SAN
BERNARDINO COUNTIES, RAINFALL COULD RANGE FROM 3 TO 3.5 INCHES
NEAR THE COAST TO 4 TO 6 INCHES ON THE COASTAL SLOPES OF THE SAN
BERNARDINO COUNTY MOUNTAINS WITH ISOLATED TOTALS EXCEEDING 8
INCHES. THIS WILL DECREASE FROM NORTH TO SOUTH WITH AROUND 2
INCHES ACROSS FAR SOUTHERN SAN DIEGO COUNTY. FOR THE HIGH DESERT,
2 TO 2.5 INCHES IS EXPECTED WITH 0.75 TO 1.5 INCH FOR THE LOWER
DESERTS. AN ADDITIONAL 0.15-0.50 INCHES OF PRECIPITATION IS
POSSIBLE DURING THE DAY THURSDAY, HIGHEST WHERE HEAVIER SHOWERS OR
THUNDERSTORMS OCCUR.
FOR THURSDAY NIGHT THROUGH SATURDAY, FOR ORANGE AND SOUTHWESTERN
SAN BERNARDINO COUNTIES, ADDITIONAL RAINFALL AND LIQUID EQUIVALENT
ABOVE THE SNOW LEVEL FOR ORANGE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES COULD RANGE FROM AROUND 1 INCH NEAR THE COAST TO 1.5 TO
2.5 INCHES ON THE COASTAL SLOPES OF THE SAN BERNARDINO COUNTY
MOUNTAINS. THIS WILL DECREASE FROM NORTH TO SOUTH WITH AROUND ONE-
HALF INCH ACROSS FAR SOUTHERN SAN DIEGO COUNTY. FOR THE HIGH
DESERT, ONE-QUARTER TO ONE-HALF INCH IS EXPECTED WITH ONE- QUARTER
INCH OR LESS FOR THE LOWER DESERTS.
THROUGH WEDNESDAY NIGHT FOR SOUTHWESTERN CALIFORNIA, CHANCES FOR 2
INCHES OR MORE OF RAINFALL RANGE FROM 90 TO 100 PERCENT FOR THE
COAST TO THE MOUNTAINS FOR AREAS BORDERING LOS ANGELES COUNTY TO
20 TO 30 PERCENT ACROSS FAR SOUTHERN SAN DIEGO COUNTY.
SNOW LEVELS WILL RISE ABOVE 9000 FEET ON WEDNESDAY MORNING, THEN
FALL TO AROUND 7000 FEET ON THURSDAY THROUGH FRIDAY MORNING, THEN
GRADUALLY LOWERING TO 5000 FEET FOR EARLY SATURDAY.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page