560  
FXUS01 KWBC 142000  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
259 PM EST THU DEC 14 2017  
 
VALID 00Z FRI DEC 15 2017 - 00Z SUN DEC 17 2017  
 
...HEAVY LAKE EFFECT/LAKE ENHANCES SNOW POSSIBLE DOWNWIND FROM THE  
GREAT LAKES...  
 
...HEAVY SNOW POSSIBLE OVER PARTS OF THE CASCADES AND THE NORTHERN  
ROCKIES...  
   
..HEAVY RAIN POSSIBLE OVER PARTS OF SOUTHERN TEXAS
 
 
A REGION OF STRONG UPPER-LEVEL ENERGY OVER WESTERN ONTARIO/UPPER  
MISSISSIPPI VALLEY WILL MOVE ACROSS THE GREAT LAKES TO OFF THE  
NORTHEAST COAST BY SATURDAY. LAKE EFFECT/LAKE ENHANCES SNOW WILL  
DEVELOP OVER THE GREAT LAKES THROUGH SATURDAY WITH SNOW HEAVY AT  
TIMES. THE ASSOCIATED FRONT WILL ALSO AID IN PRODUCING SNOW OVER  
PARTS OF THE NORTHEAST AND UPPER MISSISSIPPI VALLEY/NORTHERN  
PLAINS ALSO THROUGH SATURDAY. IN ADDITION, UPPER-LEVEL ENERGY  
OVER THE OVER THE CENTRAL PLAINS WILL MOVE LOWER MISSISSIPPI AND  
TENNESSEE VALLEYS BY FRIDAY MORNING. THE ENERGY WILL TRIGGER  
LIGHT SNOW OVER PARTS OF THE NORTHERN/CENTRAL PLAINS THAT WILL END  
BY LATE EVENING ON THURSDAY.  
 
MEANWHILE, A FRONT OVER THE GULF OF MEXICO WILL STALL WHILE A WAVE  
OF LOW PRESSURE WILL MOVE WESTWARD TO THE MEXICAN COAST ON FRIDAY  
INTO SATURDAY. RAIN WILL DEVELOP OVER PARTS THE SOUTHERN TIP OF  
TEXAS OVERNIGHT THURSDAY INTO SATURDAY MORNING.  
 
MORE TO FOLLOW  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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