170  
FXUS01 KWBC 280759  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
259 AM EST WED NOV 28 2018  
 
VALID 12Z WED NOV 28 2018 - 12Z FRI NOV 30 2018  
 
...SNOW WILL CONTINUE TO IMPACT NORTHERN NEW ENGLAND WITH  
ADDITIONAL LAKE EFFECT SNOWFALL EXPECTED DOWNWIND OF THE GREAT  
LAKES THROUGH TODAY...  
 
...HEAVY PRECIPITATION IS EXPECTED ACROSS THE PACIFIC NORTHWEST  
AND CALIFORNIA OVER THE NEXT FEW DAYS WITH VERY HEAVY SNOWFALL IN  
THE SIERRA-NEVADA...  
 
...WELL BELOW NORMAL TEMPERATURES ARE LIKELY ACROSS PARTS OF THE  
MIDWEST AND EAST AS TEMPERATURES REBOUND TO WELL ABOVE NORMAL OVER  
THE HIGH PLAINS...  
 
THE HEAVY SNOW EVENT ACROSS NORTHERN NEW ENGLAND IS UNDERWAY THIS  
MORNING AND IS EXPECTED TO CONTINUE THROUGH TODAY. THE SURFACE LOW  
IS EXPECTED TO MOVE AWAY FROM MAINE BY THIS AFTERNOON AND WILL BE  
WELL OFFSHORE BY TONIGHT. IN THE MEANTIME, HEAVY SNOW WILL  
CONTINUE FROM UPSTATE NEW YORK THROUGH WESTERN MAINE.  
ADDITIONALLY, STRONG AND COLD NORTHWEST FLOW OVER THE GREAT LAKES  
WILL BRING HEAVY LAKE-EFFECT SNOW DOWNWIND OF LAKE ERIE AND  
ONTARIO--WHERE UPWARDS OF 10 TO 12 INCHES OF ADDITIONAL SNOW CAN  
BE EXPECTED. THE SNOWFALL COMBINED WITH THE STRONG WINDS ARE  
EXPECTED TO RESULT IN HAZARDOUS TRAVEL CONDITIONS. BY THURSDAY  
MORNING, AS THE LOW PRESSURE SYSTEM CONTINUES TO MOVE FARTHER INTO  
THE ATLANTIC, SNOWFALL WILL BEGIN TO DWINDLE--COMPLETELY DRYING  
OUT BY THURSDAY EVENING. IN TERMS OF TEMPERATURES, EXPECT BELOW  
NORMAL TEMPERATURES THROUGH THURSDAY.  
 
THE WET PATTERN WILL CONTINUE FOR THE WEST OVER THE NEXT FEW DAYS  
ACROSS THE PACIFIC NORTHWEST, CALIFORNIA, AND THE NORTHERN/CENTRAL  
ROCKIES. DEEP ATMOSPHERIC FETCH OF MOISTURE FROM THE PACIFIC AND  
COLDER TEMPERATURES CONTINUES TO CROSS THE WEST COAST AND WELL  
INLAND ACROSS THE INTERMOUNTAIN REGION. THE HEAVIEST RAINFALL  
TODAY IS EXPECTED TO OCCUR IN NORTHERN AND CENTRAL  
CALIFORNIA--WITH LIGHTER AMOUNTS IN THE PACIFIC NORTHWEST AND  
INTERMOUNTAIN WEST. THIS IS GIVING WAY TO HEAVY RAINFALL AND HEAVY  
SNOWFALL--ESPECIALLY TO THE SIERRA NEVADA WHERE A FOOT OF SNOW  
ABOVE 4,000 FEET COULD OCCUR--WITH LOCALIZED AMOUNTS OF UP TO 3  
FEET. THE HEAVY PRECIPITATION WILL CONTINUE ON THURSDAY ACROSS  
CALIFORNIA AS A FRONTAL SYSTEM MOVES ACROSS THE STATE TOWARD THE  
CENTRAL GREAT BASIN.  
 
REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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