176  
FXUS01 KWBC 092000  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
300 PM EST FRI FEB 09 2018  
 
VALID 00Z SAT FEB 10 2018 - 00Z MON FEB 12 2018  
 
...HEAVY SNOW POSSIBLE FROM THE LOWER GREAT LAKES TO PARTS OF  
NORTHERN NEW ENGLAND...  
   
..HEAVY SNOW POSSIBLE FOR PARTS OF THE CENTRAL ROCKIES
 
 
...HEAVY RAIN POSSIBLE FROM SOUTHERN OHIO/TENNESSEE VALLEYS AND  
THE CENTRAL/SOUTHERN APPALACHIANS TO THE LOWER MISSISSIPPI  
VALLEY...  
 
...RAIN/FREEZING RAIN POSSIBLE FROM THE MIDDLE MISSISSIPPI VALLEY  
TO THE LOWER GREAT LAKES...  
 
A FRONT EXTENDING FROM THE LOWER GREAT LAKES SOUTHWESTWARD TO THE  
SOUTHERN PLAINS THEN NORTHWESTWARD TO THE PACIFIC NORTHWEST WILL  
MOVE EASTWARD TO SOUTHERN NEW ENGLAND/NORTHERN MID-ATLANTIC  
SOUTHWARD TO THE WESTERN GULF COAST AND SOUTHWARD TO THE  
U.S./MEXICAN BORDER BY SUNDAY. THE SYSTEM WILL PRODUCE SNOW FROM  
NORTHERN APPALACHIANS/LOWER GREAT LAKES TO WESTERN OHIO VALLEY AND  
FROM PARTS OF THE NORTHERN/CENTRAL PLAINS TO THE NORTHERN ROCKIES.  
OVERNIGHT FRIDAY, THE SNOW MOVES INTO NORTHERN NEW ENGLAND AND  
CONTINUES OVER THE LOWER GREAT LAKES THROUGH SUNDAY. THE SNOW  
ENDS OVER THE NORTHERN ROCKIES BY SATURDAY MORNING AS THE AREA OF  
SNOW MOVES INTO THE CENTRAL ROCKIES/CENTRAL PLAINS BY SATURDAY  
EVENING. OVERNIGHT SATURDAY, THE SNOW EXPANDS INTO THE MIDDLE  
MISSISSIPPI VALLEY/WESTERN OHIO VALLEY INTO SUNDAY.  
 
MEANWHILE, MOISTURE FROM THE WESTERN GULF OF MEXICO FLOWS  
NORTHWARD OVER THE WESTERN GULF COAST INTO THE MIDDLE/LOWER  
MISSISSIPPI VALLEY THAT WILL EXTEND NORTHWARD INTO PARTS OF THE  
NORTHEAST OVERNIGHT FRIDAY AS MOISTURE FLOWS OFF THE WESTERN  
ATLANTIC INTO THE SOUTHEAST AND INTO PARTS OF THE MID-ATLANTIC  
SATURDAY EVENING INTO SUNDAY. UPPER-LEVEL ENERGY OVER THE  
TEXAS/MEXICAN BORDER WILL MOVE NORTHEASTWARD TO THE  
MID-ATLANTIC/SOUTHERN APPALACHIANS BY SATURDAY NIGHT/SUNDAY. THE  
MOISTURE AND ENERGY WILL AID IN PRODUCING SHOWERS AND  
THUNDERSTORMS OVER PARTS OF THE WESTERN GULF COAST/LOWER  
MISSISSIPPI VALLEY INTO THE SOUTHEAST THAT WILL CONTINUE OVER THE  
REGION THROUGH SUNDAY. OVERNIGHT FRIDAY, RAIN WILL DEVELOP OVER  
PARTS OF THE MIDDLE MISSISSIPPI VALLEY INTO THE SOUTHERN  
OHIO/TENNESSEE VALLEY THAT WILL EXPAND INTO PARTS OF THE  
MID-ATLANTIC AND SOUTHERN NEW ENGLAND ON SATURDAY, CONTINUING INTO  
SUNDAY. THE RAIN WILL BE HEAVY AT TIMES OVER PARTS OF THE  
OHIO/TENNESSEE VALLEYS INTO PARTS OF THE NORTHERN MID-ATLANTIC.  
BETWEEN THE RAIN AND THE SNOW A BAND OF RAIN/FREEZING RAIN WILL  
DEVELOP OVER PARTS OF THE MIDDLE MISSISSIPPI VALLEY TO THE LOWER  
GREAT LAKES OVERNIGHT FRIDAY INTO SUNDAY.  
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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