636  
FSUS46 KSGX 201036  
QPSSGX  
 
QUANTITATIVE PRECIPITATION FORECAST  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
236 AM PST WED FEB 20 2019  
 
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  
0.00 0.01 0.08 0.02 0.03 0.04 0.01 0.00 0.00 0.00 0.00 0.00  
NEWPORT BEACH  
0.00 0.05 0.10 0.05 0.03 0.05 0.02 0.00 0.00 0.00 0.00 0.00  
LAGUNA BEACH  
0.00 0.12 0.17 0.09 0.05 0.06 0.03 0.00 0.00 0.00 0.00 0.00  
SAN CLEMENTE  
0.00 0.08 0.11 0.05 0.05 0.07 0.05 0.00 0.00 0.00 0.00 0.00  
 
   
..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  
0.00 0.02 0.08 0.04 0.03 0.06 0.05 0.00 0.00 0.00 0.00 0.00  
FULLERTON  
0.00 0.01 0.04 0.02 0.02 0.05 0.02 0.00 0.00 0.00 0.00 0.00  
BREA  
0.00 0.04 0.03 0.03 0.03 0.06 0.02 0.00 0.00 0.00 0.00 0.00  
VILLA PARK  
0.00 0.02 0.14 0.06 0.04 0.07 0.04 0.00 0.00 0.00 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  
0.00 0.07 0.20 0.09 0.04 0.07 0.04 0.00 0.00 0.00 0.00 0.00  
SILVERADO CANYON, 3 MI EAST OF SILVERADO  
0.00 0.14 0.34 0.38 0.10 0.11 0.09 0.00 0.00 0.00 0.00 0.00  
MODJESKA PRESERVE  
0.00 0.10 0.20 0.22 0.06 0.09 0.06 0.00 0.00 0.00 0.00 0.00  
SANTIAGO PEAK  
0.00 0.24 0.34 0.33 0.10 0.12 0.09 0.00 0.00 0.00 0.00 0.00  
SANTA ROSA PLATEAU  
0.00 0.14 0.10 0.09 0.07 0.11 0.09 0.00 0.00 0.00 0.00 0.00  
 
   
..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  
0.00 0.03 0.14 0.04 0.04 0.09 0.04 0.00 0.00 0.00 0.00 0.00  
SAN BERNARDINO  
0.00 0.03 0.14 0.08 0.05 0.12 0.07 0.00 0.00 0.00 0.00 0.00  
BEAUMONT  
0.00 0.12 0.20 0.14 0.10 0.21 0.12 0.00 0.00 0.00 0.00 0.00  
RIVERSIDE  
0.00 0.02 0.06 0.04 0.04 0.08 0.05 0.00 0.00 0.00 0.00 0.00  
PERRIS VALLEY CHANNEL  
0.00 0.04 0.06 0.07 0.06 0.10 0.07 0.00 0.00 0.00 0.00 0.00  
PRADO DAM  
0.00 0.01 0.13 0.10 0.04 0.07 0.07 0.00 0.00 0.00 0.00 0.00  
TEMECULA  
0.00 0.05 0.08 0.09 0.07 0.13 0.07 0.00 0.00 0.00 0.00 0.00  
HEMET  
0.00 0.05 0.12 0.09 0.07 0.14 0.12 0.00 0.00 0.00 0.00 0.00  
 
   
..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  
0.00 0.28 0.70 0.61 0.29 0.36 0.33 0.01 0.00 0.00 0.00 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 0.00 0.03 0.06 0.04 0.06 0.02 0.00 0.00 0.00 0.00 0.00  
THERMAL  
0.00 0.00 0.01 0.03 0.03 0.06 0.03 0.00 0.00 0.00 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  
0.00 0.11 0.17 0.11 0.10 0.24 0.09 0.00 0.00 0.00 0.00 0.00  
LYTLE CREEK  
0.00 0.12 0.22 0.11 0.09 0.20 0.09 0.00 0.00 0.00 0.00 0.00  
WRIGHTWOOD  
0.00 0.03 0.20 0.11 0.08 0.10 0.11 0.00 0.00 0.00 0.00 0.00  
LAKE ARROWHEAD  
0.00 0.25 0.36 0.33 0.14 0.33 0.18 0.01 0.00 0.00 0.00 0.00  
BIG BEAR LAKE  
0.00 0.05 0.46 0.29 0.10 0.23 0.13 0.01 0.00 0.00 0.00 0.00  
BIG MORONGO CANYON  
0.00 0.01 0.08 0.08 0.07 0.12 0.07 0.00 0.00 0.00 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  
0.00 0.01 0.05 0.12 0.04 0.08 0.03 0.00 0.00 0.00 0.00 0.00  
VICTORVILLE  
0.00 0.00 0.04 0.04 0.04 0.04 0.06 0.00 0.00 0.00 0.00 0.00  
APPLE VALLEY  
0.00 0.00 0.03 0.03 0.04 0.04 0.02 0.00 0.00 0.00 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  
0.00 0.05 0.17 0.24 0.08 0.08 0.12 0.00 0.00 0.00 0.00 0.00  
MIRAMAR  
0.00 0.05 0.13 0.21 0.12 0.33 0.07 0.00 0.00 0.00 0.00 0.00  
SAN DIEGO INTERNATIONAL AIRPORT  
0.00 0.05 0.09 0.12 0.10 0.12 0.12 0.01 0.00 0.00 0.00 0.00  
CHULA VISTA  
0.00 0.04 0.11 0.16 0.09 0.15 0.08 0.01 0.00 0.00 0.00 0.00  
SAN YSIDRO  
0.00 0.03 0.15 0.16 0.08 0.14 0.08 0.01 0.00 0.00 0.00 0.00  
 
   
..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  
0.00 0.08 0.10 0.10 0.08 0.10 0.08 0.00 0.00 0.00 0.00 0.00  
RANCHO BERNARDO  
0.00 0.04 0.18 0.21 0.14 0.11 0.11 0.00 0.00 0.00 0.00 0.00  
LA MESA  
0.00 0.08 0.20 0.16 0.13 0.28 0.09 0.01 0.00 0.00 0.00 0.00  
EL CAJON  
0.00 0.07 0.18 0.16 0.14 0.34 0.09 0.00 0.00 0.00 0.00 0.00  
 
   
..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  
0.00 0.12 0.32 0.31 0.17 0.19 0.12 0.00 0.00 0.00 0.00 0.00  
JULIAN  
0.00 0.18 0.50 0.54 0.47 0.19 0.12 0.01 0.00 0.00 0.00 0.00  
MOUNT LAGUNA  
0.00 0.11 0.52 0.54 0.45 0.30 0.14 0.02 0.00 0.00 0.00 0.00  
CAMPO  
0.00 0.05 0.22 0.27 0.17 0.28 0.14 0.02 0.00 0.00 0.00 0.00  
 
   
..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 0.00 0.08 0.14 0.05 0.04 0.02 0.00 0.00 0.00 0.00 0.00  
 

 
 
DISCUSSION...  
DRY WEATHER WILL CONTINUE THROUGH THIS MORNING.  
 
ANOTHER COLD LOW PRESSURE SYSTEM FROM THE NORTH WILL BRING MORE  
SHOWERS WITH LOW SNOW LEVELS FOR THIS AFTERNOON THROUGH THURSDAY  
NIGHT ALONG WITH A SLIGHT CHANCE OF THUNDERSTORMS THURSDAY  
AFTERNOON AND EARLY EVENING. IN ORANGE AND SOUTHWESTERN SAN  
BERNARDINO COUNTIES, RAINFALL COULD RANGE FROM ONE-QUARTER TO  
ONE-HALF INCH FOR THE COAST AND VALLEYS TO 1 TO 1.5 INCHES IN THE  
MOUNTAINS. IN SAN DIEGO AND WESTERN RIVERSIDE COUNTIES, RAINFALL  
COULD RANGE FROM AROUND ONE-HALF INCH NEAR THE COAST TO 1 TO 2  
INCHES IN THE MOUNTAINS WITH LOCALLY GREATER AMOUNTS. AMOUNTS IN  
THE DESERTS WILL MOSTLY BE ONE-TENTH TO ONE-QUARTER INCH.  
 
SNOW LEVELS WILL RISE TO AROUND 4000 FEET THIS AFTERNOON AND EARLY  
EVENING, THEN FALL TO 2500 TO 3500 FEET LATE TONIGHT AND THURSDAY,  
AND 2000 TO 2500 FEET THURSDAY NIGHT.  
 

 
 
17  
 
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