Quantitative Precipitation Statement
Issued by NWS San Diego, CA

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FSUS46 KSGX 201100
QPSSGX

Quantitative Precipitation Forecast
National Weather Service San Diego CA
300 AM PST Tue Feb 20 2018

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...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Huntington Beach
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Newport Beach
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Laguna Beach
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00
   San Clemente
   0.00  0.00  0.00  0.00  0.01  0.01  0.00  0.00  0.00  0.00  0.01  0.00


...Orange County Inland Areas...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Anaheim
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Fullerton
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Brea
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Villa Park
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00


...Santa Ana Mountains And Foothills...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Fremont Canyon
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00
   Silverado Canyon, 3 Mi East of Silverado
   0.00  0.00  0.00  0.00  0.00  0.05  0.00  0.00  0.00  0.00  0.01  0.01
   Modjeska Preserve
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00
   Santiago Peak
   0.00  0.00  0.00  0.00  0.00  0.09  0.00  0.00  0.00  0.00  0.02  0.02
   Santa Rosa Plateau
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.02


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

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Ontario
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   San Bernardino
   0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00  0.00  0.00  0.01  0.00
   Beaumont
   0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00  0.00  0.00  0.02  0.00
   Riverside
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Perris Valley Channel
   0.00  0.00  0.00  0.00  0.00  0.00  0.02  0.00  0.00  0.00  0.00  0.00
   Prado Dam
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
   Temecula
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.01  0.00
   Hemet
   0.00  0.00  0.00  0.00  0.00  0.01  0.01  0.00  0.00  0.00  0.02  0.01


...Riverside County Mountains...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Idyllwild
   0.00  0.00  0.00  0.00  0.00  0.02  0.05  0.00  0.00  0.06  0.10  0.15


...Coachella Valley...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Palm Springs
   0.00  0.00  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  0.00  0.00


...San Bernardino County Mountains...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

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


...Apple And Lucerne Valleys...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Hesperia
   0.00  0.00  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  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  0.00  0.00


...San Diego County Coastal Areas...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Oceanside
   0.00  0.00  0.00  0.00  0.00  0.05  0.00  0.00  0.00  0.00  0.03  0.01
   Miramar
   0.00  0.00  0.00  0.00  0.00  0.01  0.00  0.01  0.03  0.01  0.01  0.02
   San Diego International Airport
   0.00  0.00  0.00  0.00  0.00  0.02  0.01  0.02  0.04  0.01  0.01  0.04
   Chula Vista
   0.00  0.00  0.00  0.00  0.00  0.02  0.01  0.02  0.05  0.01  0.01  0.02
   San Ysidro
   0.00  0.00  0.00  0.00  0.00  0.01  0.01  0.00  0.03  0.01  0.01  0.04


...San Diego County Valleys...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Fallbrook
   0.00  0.00  0.00  0.00  0.00  0.01  0.00  0.00  0.00  0.00  0.05  0.04
   Rancho Bernardo
   0.00  0.00  0.00  0.00  0.00  0.05  0.01  0.00  0.00  0.00  0.01  0.02
   La Mesa
   0.00  0.00  0.00  0.00  0.00  0.02  0.00  0.01  0.02  0.04  0.02  0.04
   El Cajon
   0.00  0.00  0.00  0.00  0.00  0.02  0.00  0.01  0.00  0.03  0.01  0.03


...San Diego County Mountains...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Palomar Mountain
   0.00  0.00  0.00  0.00  0.00  0.03  0.01  0.00  0.00  0.00  0.07  0.04
   Julian
   0.00  0.00  0.00  0.00  0.00  0.06  0.06  0.00  0.00  0.05  0.09  0.07
   Mount Laguna
   0.00  0.00  0.00  0.00  0.00  0.09  0.06  0.00  0.00  0.03  0.04  0.09
   Campo
   0.00  0.00  0.00  0.00  0.00  0.12  0.07  0.00  0.00  0.08  0.04  0.05


...San Diego County Deserts...

   04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu
   10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu 10Thu 16Thu 22Thu 04Fri

   Borrego Springs
   0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00

$$

DISCUSSION...
A longwave trough of low pressure will remain centered over the
western states with shortwaves moving quickly southward along the
western side of the trough near the West Coast. Relatively slight
differences in the track...timing...and intensity of these
systems will have noticeable impacts on the weather that is
ultimately experienced across Southern California. Tracks slightly
farther west would keep most of the precipitation off the coast
while tracks a little farther east would have greater potential to
spread precipitation inland to around the mountains. In any
event...precipitation amounts should be mostly light with coverage
fairly limited. Snow levels will continue to be fairly low...
around 3500 feet. One of these shortwaves could bring some
additional mostly light precipitation around Wednesday into
Wednesday night and another around late Thursday into early
Friday.

$$

17



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