333  
FXUS01 KWBC 131952  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
251 PM EST MON NOV 13 2017  
 
VALID 00Z TUE NOV 14 2017 - 00Z THU NOV 16 2017  
 
...HIGH WIND, HEAVY RAIN AND MOUNTAIN SNOWS POSSIBLE FOR PARTS OF  
THE PACIFIC NORTHWEST...  
 
A STRONG LOW PRESSURE SYSTEM IS FORECAST TO MOVE INTO THE PACIFIC  
NORTHWEST. WITH NEARLY CONTINUOUS ONSHORE FLOW, HEAVY RAIN IS  
EXPECTED AT LOWER ELEVATIONS WITH HEAVY MOUNTAIN SNOW. HIGH WINDS  
WILL ALSO ACCOMPANY THIS SYSTEM. AN EXTENSIVE AREA OF THE OFFSHORE  
AND COASTAL WATERS OF WASHINGTON AND OREGON HAVE STORM AND GALE  
WARNINGS. WINTER WEATHER ADVISORIES ARE IN EFFECT FOR PORTION OF  
THE OLYMPICS, CASCADES, AND NORTHERN ROCKIES - WITH A WINTER STORM  
WATCH FOR THE SIERRA NEVADAS.  
 
SOME OF THE MOISTURE WILL REACH THE NORTHERN ROCKIES BY TUESDAY AS  
A SURFACE LOW TRACKS INLAND. TEMPERATURES WILL MODERATE ACROSS  
MUCH OF THE WESTERN U.S. AHEAD OF THE DEEP UPPER TROUGH AND WILL  
SEE TEMPERATURES RISE ABOVE NORMAL ACROSS THE CENTRAL AND SOUTHERN  
PLAINS BY TUESDAY.  
 
A WEAK FRONT WILL PASS THROUGH THE CENTRAL PLAINS TO THE EAST  
COAST BRINGING LIGHT PRECIPITATION TO A FEW AREAS. HIGH PRESSURE  
WILL BUILD BACK INTO THE REGION, WHICH WILL KEEP COOLER THAN  
SEASONAL NORMAL TEMPERATURES THROUGH AT LEAST MIDWEEK.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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