Quantitative Precipitation Statement
Issued by NWS San Diego, CA

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FSUS46 KSGX 260007
QPSSGX

Quantitative Precipitation Forecast
National Weather Service San Diego CA
407 PM PST Sat Feb 25 2017

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...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Huntington Beach
   0.00  0.07  0.06  0.01  0.04  0.00  0.02  0.11  0.01  0.00
   Newport Beach
   0.00  0.06  0.07  0.01  0.02  0.01  0.02  0.16  0.06  0.01
   Laguna Beach
   0.00  0.05  0.08  0.02  0.02  0.01  0.02  0.19  0.10  0.02
   San Clemente
   0.00  0.05  0.07  0.03  0.02  0.02  0.02  0.22  0.16  0.03


...Orange County Inland Areas...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Anaheim
   0.00  0.07  0.06  0.01  0.04  0.01  0.02  0.09  0.03  0.01
   Fullerton
   0.00  0.06  0.05  0.01  0.09  0.00  0.03  0.08  0.01  0.00
   Brea
   0.00  0.07  0.06  0.01  0.05  0.00  0.03  0.08  0.03  0.01
   Villa Park
   0.00  0.08  0.08  0.01  0.02  0.02  0.02  0.12  0.06  0.02


...Santa Ana Mountains And Foothills...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Fremont Canyon
   0.00  0.10  0.10  0.01  0.02  0.03  0.03  0.13  0.08  0.03
   Silverado Canyon, 3 Mi East of Silverado
   0.00  0.12  0.15  0.03  0.04  0.05  0.05  0.18  0.16  0.04
   Modjeska Preserve
   0.00  0.11  0.12  0.03  0.03  0.04  0.05  0.18  0.14  0.04
   Santiago Peak
   0.00  0.12  0.16  0.03  0.04  0.06  0.04  0.19  0.18  0.05
   Santa Rosa Plateau
   0.00  0.05  0.09  0.04  0.04  0.03  0.02  0.21  0.20  0.06


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

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Ontario
   0.00  0.07  0.07  0.01  0.02  0.03  0.02  0.08  0.05  0.04
   San Bernardino
   0.00  0.07  0.06  0.00  0.03  0.03  0.02  0.12  0.09  0.06
   Beaumont
   0.00  0.07  0.11  0.01  0.04  0.04  0.02  0.18  0.17  0.11
   Riverside
   0.00  0.06  0.06  0.00  0.01  0.02  0.02  0.11  0.09  0.05
   Perris Valley Channel
   0.00  0.08  0.08  0.01  0.03  0.03  0.01  0.19  0.18  0.08
   Prado Dam
   0.00  0.08  0.08  0.01  0.02  0.02  0.01  0.12  0.07  0.03
   Temecula
   0.00  0.03  0.09  0.02  0.03  0.02  0.00  0.20  0.23  0.08
   Hemet
   0.00  0.06  0.11  0.01  0.02  0.02  0.01  0.16  0.21  0.12


...Riverside County Mountains...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Idyllwild
   0.00  0.12  0.24  0.04  0.06  0.05  0.01  0.16  0.25  0.12


...Coachella Valley...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Palm Springs
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.09  0.10  0.05
   Thermal
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.06  0.17  0.02


...San Bernardino County Mountains...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   San Antonio Dam
   0.00  0.11  0.10  0.01  0.04  0.06  0.05  0.07  0.05  0.03
   Lytle Creek
   0.00  0.08  0.08  0.01  0.07  0.05  0.05  0.08  0.06  0.04
   Wrightwood
   0.00  0.06  0.04  0.00  0.00  0.00  0.00  0.05  0.03  0.02
   Lake Arrowhead
   0.00  0.10  0.10  0.01  0.07  0.09  0.04  0.10  0.10  0.06
   Big Bear Lake
   0.00  0.07  0.08  0.00  0.00  0.00  0.00  0.09  0.09  0.06
   Big Morongo Canyon
   0.00  0.01  0.03  0.00  0.00  0.00  0.00  0.08  0.08  0.05


...Apple And Lucerne Valleys...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Hesperia
   0.00  0.02  0.01  0.00  0.00  0.01  0.00  0.08  0.04  0.04
   Victorville
   0.00  0.02  0.01  0.00  0.00  0.00  0.00  0.05  0.03  0.03
   Apple Valley
   0.00  0.02  0.01  0.00  0.00  0.00  0.00  0.06  0.03  0.03


...San Diego County Coastal Areas...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Oceanside
   0.00  0.04  0.07  0.05  0.05  0.01  0.02  0.27  0.25  0.06
   Miramar
   0.00  0.01  0.09  0.03  0.03  0.01  0.04  0.42  0.35  0.05
   San Diego International Airport
   0.00  0.00  0.10  0.03  0.03  0.02  0.05  0.46  0.33  0.05
   Chula Vista
   0.00  0.01  0.08  0.02  0.02  0.01  0.04  0.49  0.37  0.05
   San Ysidro
   0.00  0.01  0.08  0.02  0.02  0.01  0.04  0.50  0.40  0.06


...San Diego County Valleys...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Fallbrook
   0.00  0.04  0.09  0.02  0.03  0.02  0.02  0.24  0.25  0.06
   Rancho Bernardo
   0.00  0.02  0.08  0.03  0.02  0.01  0.03  0.37  0.39  0.04
   La Mesa
   0.00  0.01  0.09  0.03  0.03  0.01  0.04  0.46  0.39  0.05
   El Cajon
   0.00  0.01  0.09  0.03  0.02  0.02  0.03  0.45  0.40  0.05


...San Diego County Mountains...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Palomar Mountain
   0.00  0.04  0.15  0.06  0.05  0.02  0.02  0.25  0.35  0.08
   Julian
   0.00  0.04  0.19  0.12  0.06  0.04  0.02  0.34  0.42  0.09
   Mount Laguna
   0.00  0.01  0.14  0.09  0.05  0.05  0.00  0.39  0.38  0.09
   Campo
   0.00  0.01  0.08  0.03  0.02  0.03  0.03  0.45  0.46  0.14


...San Diego County Deserts...

   16Sat 22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon
   22Sat 04Sun 10Sun 16Sun 22Sun 04Mon 10Mon 16Mon 22Mon 04Tue

   Borrego Springs
   0.00  0.00  0.01  0.00  0.00  0.00  0.00  0.15  0.23  0.02

$$

DISCUSSION...
The first in a pair of low pressure systems from the northwest
will move through Southern California late tonight and Sunday
morning with a second system for Monday. The first round of
mainly light precipitation for the coast, valleys and mountains
is expected for late tonight into Sunday morning with
precipitation spreading southward across the area.

A second round of precipitation is expected for Sunday night into
Monday with showers lingering Monday night. For this second round
of precipitation...a trough of low pressure from the northwest
will tap a plume of subtropical moisture extending into northern
Baja. The more significant precipitation is expected across
northern Baja with lighter precipitation extending into portions
of Southern California...with the greatest precipitation amounts
for Southern California expected across San Diego and Imperial
Counties.

For this second round of precipitation...rainfall amounts have
been increased for San Diego County from one-half to one inch for
the coast and valleys and perhaps over an inch in the San Diego
Mountains...with under one-quarter inch in the lower deserts.

Snow levels will fluctuate between 4500 to 5000 feet.

$$

JMB



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