Quantitative Precipitation Statement
Issued by NWS San Diego, CA

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FSUS46 KSGX 121144
QPSSGX

Quantitative Precipitation Forecast
National Weather Service San Diego CA
344 AM PST Wed Feb 12 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...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Huntington Beach
   0.07  0.23  0.03  0.05  0.28  0.41  0.66  0.16  0.08  0.03  0.00  0.00
   Newport Beach
   0.09  0.22  0.07  0.07  0.27  0.33  0.63  0.19  0.09  0.03  0.01  0.00
   Laguna Beach
   0.11  0.24  0.13  0.08  0.30  0.32  0.63  0.24  0.10  0.03  0.01  0.00
   San Clemente
   0.11  0.23  0.15  0.13  0.32  0.33  0.67  0.28  0.12  0.04  0.01  0.01


...Orange County Inland Areas...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Anaheim
   0.07  0.20  0.07  0.09  0.42  0.44  0.75  0.20  0.07  0.02  0.00  0.00
   Fullerton
   0.06  0.19  0.05  0.06  0.36  0.44  0.75  0.16  0.07  0.02  0.00  0.00
   Brea
   0.06  0.22  0.04  0.09  0.50  0.48  0.87  0.18  0.08  0.02  0.00  0.00
   Villa Park
   0.08  0.22  0.11  0.10  0.51  0.47  0.86  0.22  0.10  0.03  0.00  0.00


...Santa Ana Mountains And Foothills...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Fremont Canyon
   0.10  0.23  0.11  0.11  0.60  0.53  0.93  0.26  0.12  0.03  0.00  0.00
   Silverado Canyon, 3 Mi East of Silverado
   0.14  0.35  0.24  0.23  0.98  0.90  1.35  0.48  0.35  0.06  0.01  0.00
   Modjeska Preserve
   0.14  0.23  0.14  0.19  0.71  0.58  1.07  0.36  0.22  0.05  0.01  0.00
   Santiago Peak
   0.18  0.41  0.42  0.39  1.22  0.98  1.44  0.53  0.40  0.06  0.01  0.00
   Santa Rosa Plateau
   0.11  0.20  0.21  0.17  0.53  0.62  0.99  0.42  0.22  0.04  0.01  0.01


...San Bernardino And Riverside County Valleys-The Inland Empire...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Ontario
   0.05  0.15  0.03  0.09  0.45  0.50  1.04  0.26  0.13  0.04  0.01  0.00
   San Bernardino
   0.02  0.07  0.02  0.09  0.47  0.45  0.86  0.27  0.14  0.05  0.00  0.00
   Beaumont
   0.08  0.14  0.10  0.19  0.39  0.46  0.95  0.39  0.16  0.05  0.01  0.00
   Riverside
   0.05  0.13  0.05  0.05  0.22  0.35  0.72  0.20  0.10  0.03  0.00  0.00
   Perris Valley Channel
   0.07  0.13  0.07  0.06  0.11  0.34  0.71  0.22  0.17  0.06  0.00  0.00
   Prado Dam
   0.05  0.21  0.09  0.08  0.34  0.48  0.82  0.24  0.10  0.03  0.00  0.00
   Temecula
   0.13  0.16  0.12  0.09  0.13  0.36  0.70  0.42  0.15  0.04  0.01  0.01
   Hemet
   0.09  0.12  0.10  0.15  0.14  0.32  0.68  0.30  0.19  0.04  0.01  0.01


...Riverside County Mountains...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Idyllwild
   0.31  0.30  0.40  0.57  0.71  0.76  1.12  0.73  0.52  0.38  0.12  0.00


...Coachella Valley...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Palm Springs
   0.00  0.02  0.01  0.01  0.03  0.18  0.36  0.15  0.07  0.03  0.00  0.00
   Thermal
   0.00  0.00  0.00  0.01  0.01  0.09  0.17  0.05  0.02  0.01  0.00  0.00


...San Bernardino County Mountains...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   San Antonio Dam
   0.13  0.15  0.08  0.21  1.22  1.28  1.55  0.41  0.30  0.09  0.02  0.00
   Lytle Creek
   0.14  0.12  0.06  0.21  1.43  1.44  1.78  0.47  0.34  0.08  0.01  0.00
   Wrightwood
   0.21  0.14  0.04  0.07  0.83  1.38  1.32  0.30  0.32  0.05  0.01  0.00
   Lake Arrowhead
   0.07  0.07  0.05  0.26  1.45  1.71  1.60  0.81  0.30  0.10  0.02  0.00
   Big Bear Lake
   0.19  0.12  0.05  0.14  0.64  0.91  1.24  0.43  0.53  0.15  0.01  0.00
   Big Morongo Canyon
   0.00  0.01  0.01  0.03  0.40  0.52  0.71  0.16  0.21  0.05  0.00  0.00


...Apple And Lucerne Valleys...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Hesperia
   0.03  0.02  0.01  0.01  0.10  0.37  0.62  0.10  0.04  0.01  0.00  0.00
   Victorville
   0.02  0.04  0.01  0.01  0.04  0.25  0.47  0.07  0.03  0.03  0.00  0.00
   Apple Valley
   0.02  0.03  0.01  0.01  0.04  0.23  0.47  0.07  0.03  0.01  0.00  0.00


...San Diego County Coastal Areas...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Oceanside
   0.09  0.23  0.39  0.31  0.26  0.30  0.60  0.38  0.20  0.04  0.01  0.01
   Miramar
   0.06  0.13  0.09  0.16  0.13  0.18  0.34  0.38  0.12  0.04  0.01  0.01
   San Diego International Airport
   0.06  0.15  0.12  0.13  0.11  0.14  0.30  0.39  0.16  0.04  0.01  0.02
   Chula Vista
   0.05  0.12  0.07  0.06  0.05  0.11  0.23  0.36  0.12  0.05  0.01  0.01
   San Ysidro
   0.05  0.12  0.05  0.03  0.04  0.11  0.23  0.36  0.09  0.03  0.01  0.02


...San Diego County Valleys...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Fallbrook
   0.08  0.22  0.25  0.18  0.30  0.30  0.64  0.37  0.25  0.04  0.01  0.01
   Rancho Bernardo
   0.10  0.17  0.11  0.11  0.13  0.22  0.44  0.41  0.21  0.05  0.01  0.01
   La Mesa
   0.07  0.15  0.08  0.09  0.12  0.14  0.27  0.45  0.22  0.05  0.01  0.01
   El Cajon
   0.07  0.15  0.10  0.08  0.07  0.15  0.29  0.43  0.21  0.06  0.01  0.01


...San Diego County Mountains...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Palomar Mountain
   0.14  0.14  0.21  0.18  0.38  0.75  1.16  0.72  0.48  0.13  0.02  0.01
   Julian
   0.31  0.41  0.38  0.35  0.35  0.52  0.77  0.81  0.29  0.26  0.05  0.02
   Mount Laguna
   0.24  0.30  0.29  0.20  0.20  0.36  0.58  0.64  0.22  0.18  0.02  0.01
   Campo
   0.10  0.19  0.19  0.08  0.11  0.17  0.22  0.41  0.17  0.10  0.01  0.02


...San Diego County Deserts...

   04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri
   10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri 10Fri 16Fri 22Fri 04Sat

   Borrego Springs
   0.00  0.01  0.03  0.01  0.02  0.10  0.17  0.12  0.04  0.09  0.00  0.00

$$

DISCUSSION...
Snow levels will rise from around 4500 feet early this morning to
6000 to 6500 feet around noon, 7000 to 7500 by late this
afternoon, and to around 8000 feet by Thursday morning.

Lighter precipitation will spread southeastward across the area
early this morning, becoming more widespread from the coast to the
mountains for late this morning through tonight. For Orange and
southwestern San Bernardino Counties through tonight, rainfall and
liquid-equivalent above the snow level is expected to range from
one-third to two-thirds of an inch near the coast to 0.75 to 1.25
inches in the mountains with snowfall of 2 inches above 6000 to
6500 feet and 3 to 6 inches above 8000 feet. For San Diego County,
rainfall through tonight is expected to range from one-half to one
inch near the coast to 1.5 to 2.5 inches in the mountains.

For Thursday and Thursday night, heavier precipitation will
spread southeastward across the area with additional rainfall
and liquid-equivalent above the snow level for Orange and
southwest San Bernardino Counties from around 1.5 inch near the
coast to 3 to 5 inches in the mountains with local amounts to
around 6 inches. For northern San Diego County and western
Riverside Counties, amounts are expected to range from 1 to 1.5
inches near the coast to 2 to 4 inches in the mountains with
amounts across southern San Diego County from around 0.75 inch
near the coast to around 1.5 inches in the mountains. A snow level
around 8000 feet on Thursday will lower to around 6500 to 7000
feet for early Friday morning.

For today through Friday night, rainfall and liquid-equivalent
above the snow level for Orange, southwestern San Bernardino,
western Riverside, and northern San Diego Counties is expected to
range from 2 to 2.5 inches near the coast to 4 to 7 inches in the
mountains with local amounts exceeding 8 inches. Amounts will
decrease from north to south across San Diego County with amounts
across southern San Diego County ranging from around 1 inch near
the coast to 2 inches in the mountains. For the lower deserts,
amounts are expected to range from around one-quarter inch for
locations bordering Imperial County to around 1 inch for the
northern Coachella Valley. For high desert areas, amounts are
expected to range from one-half to one inch farther inland from
the mountains to 1 to 2 inches on the foothills near the desert
slopes of the mountains. Additional snowfall could be as much as 1
to 2 feet above 8000 to 8500 feet with 4 to 8 inches from 6500 to
7500 feet.

For Thursday and Thursday night, there could be hourly rainfall as
much as 0.75 to 1 inch on the coastal slopes of the mountains with
the most likely time for heavier rainfall rates on Thursday
evening when there is also a slight chance of thunderstorms.

Both the San Diego River at Fashion Valley and the Santa Margarita
River at Ysidora are forecast to reach Monitor Stage late Thursday
night into Friday morning, with only an 8% chance of the San Diego
River reaching Minor Flood Stage.

$$

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