515  
FXUS01 KWBC 270740  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
339 AM EDT SAT OCT 27 2018  
 
VALID 12Z SAT OCT 27 2018 - 12Z MON OCT 29 2018  
 
...HEAVY RAINFALL AND GUSTY WINDS CONTINUE ACROSS THE NORTHEAST  
TODAY, WITH WINTRY WEATHER EXPECTED ACROSS PORTIONS OF NORTHERN  
NEW ENGLAND...  
   
..HEAVY RAINFALL POSSIBLE FOR THE PACIFIC NORTHWEST
 
 
LOW PRESSURE MOVING NORTHWARD ALONG THE NORTHEAST COAST TODAY WILL  
CONTINUE TO BRING WIDESPREAD HEAVY RAINFALL AND GUSTY WINDS TO  
MUCH OF THE NORTHEAST TODAY, COMING TO AN END FROM SOUTH TO NORTH  
BY SUNDAY AS THE LOW LIFTS INTO EASTERN CANADA. FOR MOST, RAIN  
WILL BE THE PREDOMINANT PRECIPITATION TYPE, EXCEPT ACROSS PORTIONS  
OF UPSTATE NEW YORK AND NORTHERN NEW ENGLAND WHERE MIXED  
PRECIPITATION AND/OR ACCUMULATING SNOW AND ICING IS POSSIBLE,  
ESPECIALLY IN THE HIGHER TERRAIN. WINTER WEATHER ADVISORIES ARE IN  
EFFECT FOR THE CATSKILL AND ADIRONDACK RANGES OF NEW YORK, AS WELL  
AS FOR PORTIONS OF NORTHERN NEW ENGLAND. COASTAL FLOODING AND  
STRONG WINDS ARE ALSO A CONCERN ALONG THE COAST, WHERE COASTAL  
FLOOD WARNINGS AND ADVISORIES ARE IN EFFECT, ALONG WITH HIGH WIND  
WARNINGS AND STORM WARNINGS OVER ADJACENT COASTAL WATERS.  
TEMPERATURES ACROSS THE EAST IN THE WAKE OF THIS STORM WILL REMAIN  
BELOW NORMAL THROUGH THE WEEKEND.  
 
THE UPPER MIDWEST AND GREAT LAKES WILL SEE PERIODS OF RAIN ON  
SATURDAY AS A LOW PRESSURE SYSTEM DROPS INTO THE NORTHERN PLAINS  
THIS MORNING AND ADVANCES QUICKLY EASTWARD. RAIN SHOWERS WILL MOVE  
INTO THE OHIO VALLEY ON SUNDAY, AND THE MID-ATLANTIC AND THE  
NORTHEAST BY MONDAY. CHILLY TEMPERATURES OVERNIGHT MAY ALSO ALLOW  
FOR SOME CHANGEOVER TO A RAIN/SNOW MIX ACROSS PORTIONS OF THE  
NORTHERNMOST LAKES AND THE NORTHERN APPALACHIANS. DESPITE A COLD  
FRONT PASSAGE, TEMPERATURES IN THE CENTRAL U.S. WILL WARM UP BY  
THE END OF THE WEEKEND AS UPPER LEVEL RIDGING BUILDS ACROSS THE  
REGION WITH AFTERNOON HIGHS AS MUCH AS 20 DEGREES ABOVE NORMAL  
POSSIBLE.  
 
OUT WEST, A STRONG SYSTEM MOVING ONSHORE WILL BRING LOCALLY HEAVY  
PRECIPITATION TO THE PACIFIC NORTHWEST TODAY, WITH THE BEST  
ACTIVITY EXPECTED TO FOCUS ALONG THE FAVORED TERRAIN. RAIN AND  
MOUNTAIN SNOWS MOVE INTO THE NORTHERN INTERMOUNTAIN WEST AND  
ROCKIES BY SUNDAY AND MONDAY WITH LIGHT ACCUMULATING SNOWFALL  
POSSIBLE IN THE HIGHEST ELEVATIONS. THIS SYSTEM SHOULD BRING  
TEMPERATURES BACK DOWN TO NEAR NORMAL VALUES ACROSS THE PACIFIC  
NORTHWEST THIS WEEKEND, WHILE THE REST OF THE WEST REMAINS WARM.  
 
SANTORELLI  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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