479  
FXUS01 KWBC 120736  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
236 AM EST SUN NOV 12 2017  
 
VALID 12Z SUN NOV 12 2017 - 12Z TUE NOV 14 2017  
 
...HEAVY RAIN AND MOUNTAIN SNOWS POSSIBLE FOR PARTS OF THE PACIFIC  
NORTHWEST...  
 
AN UNSETTLED PATTERN SHAPING UP FROM SUNDAY TO EARLY NEXT WEEK  
ACROSS THE WEST. PERSISTENT ONSHORE FLOW WILL BRING SHOWERS AND  
HIGHER ELEVATION SNOWS TO THE PACIFIC NORTHWEST ON SUNDAY AHEAD OF  
AN APPROACHING LOW PRESSURE CENTER. THE LOW WILL STRENGTHEN AND  
EVENTUALLY MAKE ITS WAY ONSHORE IN BRITISH COLUMBIA ON MONDAY WITH  
MODERATE TO HEAVY PRECIPITATION EXPECTED ALONG THE COASTAL RANGE  
AND CASCADES. SOME OF THE MOISTURE WILL FIND ITS WAY INTO 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 OFFSHORE AND WILL SEE TEMPERATURES RISE  
ABOVE NORMAL ACROSS THE CENTRAL U.S. BY THE END OF THE PERIOD.  
 
IN THE EAST, STRONG HIGH PRESSURE WILL MOMENTARILY GIVE WAY TO A  
WEAK FRONTAL WAVE MOVING FROM THE PLAINS TO THE EAST COAST WITH  
LIMITED PRECIPITATION. HIGH PRESSURE WILL REGAIN CONTROL BY  
TUESDAY AND ALTHOUGH TEMPERATURES WILL REMAIN BELOW NORMAL THEY  
WILL NOT APPROACH THE WINTER LIKE TEMPERATURES EXPERIENCED THE  
PREVIOUS FEW DAYS.  
 
KREKELER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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