162  
FXUS01 KWBC 090819  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
318 AM EST THU NOV 09 2017  
 
VALID 12Z THU NOV 09 2017 - 12Z SAT NOV 11 2017  
   
..HEAVY SNOW POSSIBLE OVER PORTIONS OF THE UPPER GREAT LAKES
 
 
...HEAVY RAIN POSSIBLE OVER PARTS OF THE PACIFIC  
NORTHWEST/NORTHERN CALIFORNIA...  
 
...MODERATE SNOW FOR PARTS OF THE NORTHERN INTERMOUNTAIN  
REGION/NORTHERN ROCKIES...  
 
UPPER-LEVEL ENERGY OVER THE LOWER MISSISSIPPI/TENNESSEE VALLEYS  
WILL MOVE EASTWARD OFF THE SOUTHEAST COAST BY FRIDAY MORNING. THE  
ENERGY WILL AID IN THE DEVELOPMENT OF RAIN OVER PARTS OF THE  
SOUTHERN MID-ATLANTIC AND THE CENTRAL/SOUTHERN APPALACHIAN INTO  
PARTS OF THE TENNESSEE VALLEY/WESTERN GULF COAST THAT WILL MOVE  
EASTWARD OFF THE MID-ATLANTIC/SOUTHEAST COAST BY FRIDAY MORNING.  
SHOWERS AND THUNDERSTORMS WILL ALSO DEVELOP OVER PARTS OF THE  
EASTERN GULF COAST AND THE SOUTHEAST THAT WILL MOVE OFF THE  
SOUTHEAST COAST OVERNIGHT THURSDAY.  
 
IN THE MEANTIME, A FRONT OVER THE GREAT LAKES TO THE CENTRAL  
PLAINS WILL MOVE EASTWARD OFF THE EASTERN SEABOARD ON FRIDAY. THE  
SYSTEM WILL PRODUCE LAKE EFFECT/LAKE ENHANCES SNOW OVER PARTS OF  
THE UPPER GREAT LAKES THAT WILL EXPAND INTO THE LOWER GREAT LAKES  
BY THURSDAY EVENING MOVING INTO THE NORTHEAST OVERNIGHT THURSDAY.  
THE SNOW WILL END BY FRIDAY AFTERNOON OVER THE NORTHEAST. LAKE  
EFFECT SNOW WILL DEVELOP OVER THE UPPER GREAT LAKES EARLY FRIDAY  
MORNING ENDING BY FRIDAY AFTERNOON.  
 
MEANWHILE, A FRONT OVER THE PACIFIC NORTHWEST AND NORTHERN/CENTRAL  
CALIFORNIA WILL MOVE EASTWARD TO THE NORTHERN PLAINS/GREAT BASIN  
INTO PARTS OF SOUTHERN CALIFORNIA BY FRIDAY EVENING. RAIN AND  
HIGHER ELEVATION SNOW WILL DEVELOP OVER THE PACIFIC NORTHWEST  
WHILE SNOW/LOWER ELEVATION RAIN DEVELOPS OVER THE NORTHERN  
INTERMOUNTAIN REGION INTO PARTS OF THE NORTHERN ROCKIES THROUGH  
FRIDAY EVENING. ADDITIONALLY, RAIN WILL DEVELOP OVER  
NORTHERN/CENTRAL CALIFORNIA THAT WILL CONTINUE THROUGH FRIDAY  
BEGINNING TO WANE OVERNIGHT FRIDAY INTO SATURDAY.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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