116  
FXUS01 KWBC 162030  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
329 PM EST TUE JAN 16 2018  
 
VALID 00Z WED JAN 17 2018 - 00Z FRI JAN 19 2018  
 
...RAIN/FREEZING RAIN/SLEET POSSIBLE OVER PARTS OF THE  
CENTRAL/EASTERN GULF COAST INTO GEORGIA...  
   
..HEAVY SNOW POSSIBLE OVER PARTS OF NEW ENGLAND
 
 
...HEAVY RAIN AND SNOW, OVER THE CASCADES, OVER THE PACIFIC  
NORTHWEST INTO NORTHERN CALIFORNIA...  
   
..SNOW POSSIBLE OVER THE MID-ATLANTIC
 
 
A STRONG UPPER-LEVEL TROUGH EXTENDING FROM THE GREAT LAKES TO THE  
MIDDLE MISSISSIPPI VALLEY WILL MOVE EASTWARD OFF THE EASTERN  
SEABOARD BY THURSDAY MORNING. SNOW WILL DEVELOP OVER PARTS OF THE  
NORTHEAST SOUTHWESTWARD TO PARTS OF THE LOWER MISSISSIPPI  
VALLEY/WESTERN GULF COAST THAT WILL MOVE EASTWARD TO  
MID-ATLANTIC/SOUTHEAST BY WEDNESDAY MORNING, WHILE EXPANDING  
NORTHWARD INTO NEW ENGLAND. THE SNOW WILL END OVER THE  
MID-ATLANTIC BY LATE WEDNESDAY EVENING. ON WEDNESDAY, THE SNOW  
WILL BECOME HEAVY AT TIMES OVER NEW ENGLAND BECOMING LIGHT SNOW BY  
WEDNESDAY EVENING AND ENDING OVERNIGHT WEDNESDAY. IN ADDITION,  
ALONG THE PARTS OF THE WESTERN/CENTRAL GULF COAST, RAIN/FREEZING  
RAIN/SLEET WILL DEVELOP ON TUESDAY EVENING THAT WILL MOVE EASTWARD  
OVERNIGHT TUESDAY TO THE EASTERN GULF COAST BY WEDNESDAY MORNING.  
THE RAIN/FREEZING RAIN/SLEET WILL END ON WEDNESDAY MORNING, WHILE  
MOVING OVER PARTS OF THE SOUTHEAST.  
 
MEANWHILE, UPPER-LEVEL ENERGY OVER PARTS OF THE NORTHERN  
INTERMOUNTAIN REGION/NORTHERN ROCKIES WILL MOVE SLOWLY EASTWARD TO  
THE UPPER MISSISSIPPI VALLEY BY THURSDAY. THE ENERGY WILL AID IN  
PRODUCING COASTAL RAIN OVER PARTS OF THE PACIFIC NORTHWEST ON  
TUESDAY EVENING ENDING OVERNIGHT TUESDAY. FARTHER INLAND, SNOW  
AND LOWER ELEVATION RAIN WILL DEVELOP OVER PARTS OF THE CASCADES  
INTO PARTS OF THE NORTHERN INTERMOUNTAIN REGION/NORTHERN ROCKIES  
THAT WILL LIKEWISE END OVERNIGHT TUESDAY. AS THE ENERGY MOVES  
EASTWARD, LIGHT SNOW WILL DEVELOP OVER PARTS OF THE UPPER  
MISSISSIPPI VALLEY LATE WEDNESDAY NIGHT INTO THURSDAY.  
 
MORE TO FOLLOW  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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