698  
FXUS01 KWBC 081956  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
256 PM EST SAT DEC 08 2018  
 
VALID 00Z SUN DEC 09 2018 - 00Z TUE DEC 11 2018  
 
...EXPECT HAZARDOUS WINTER TRAVEL CONDITIONS FROM THE SOUTHERN  
PLAINS TO THE MID-ATLANTIC COAST, WITH SIGNIFICANT SNOW AND ICE IN  
THE SOUTHERN APPALACHIANS...  
   
..HEAVY RAIN POSSIBLE OVER THE OLYMPIC PENINSULA
 
 
...HEAVY SNOW POSSIBLE OVER THE NORTHERN CASCADES AND HIGHER  
ELEVATIONS ON THE OLYMPIC PENINSULA...  
 
A STRONG STORM OVER THE CENTRAL GULF COAST WILL MOVE EASTWARD TO  
THE SOUTHEAST COAST BY SUNDAY MORNING THEN MOVE NORTHEASTWARD OUT  
OVER THE ATLANTIC OCEAN BY MONDAY MORNING. THE SYSTEM WILL  
PRODUCE RAIN AND SNOW OVER THE NORTHWESTERN EDGE OF THE  
PRECIPITATION SHIELD OVER PARTS OF THE INTERIOR SOUTHERN PLAINS  
AND LOWER MISSISSIPPI VALLEY THAT WILL CHANGE OVER TO AREAS OF  
RAIN/FREEZING RAIN OVERNIGHT SATURDAY OVER PARTS OF THE TENNESSEE  
AND SOUTHERN OHIO VALLEYS. ALSO OVERNIGHT SATURDAY, RAIN/FREEZING  
RAIN AND SNOW WILL DEVELOP OVER PARTS OF THE SOUTHERN  
APPALACHIANS/SOUTHERN MID-ATLANTIC CONTINUING THROUGH MONDAY  
MORNING. THE SNOW WILL BE HEAVY AT TIMES. ALONG THE ASSOCIATED  
COLD FRONT, HEAVY RAIN WILL DEVELOP OVER PARTS OF THE CENTRAL GULF  
COAST INTO PARTS OF THE TENNESSEE VALLEY OVERNIGHT SATURDAY THAT  
WILL, LIKEWISE, MOVE EASTWARD TO THE SOUTHEAST COAST BY SUNDAY  
MORNING THEN OFF THE COAST BY SUNDAY AFTERNOON. SHOWERS AND  
THUNDERSTORMS WILL DEVELOP OVER PARTS OF FLORIDA ON SUNDAY  
MORNING, ENDING BY OVERNIGHT SUNDAY.  
 
MEANWHILE, A FRONT OVER THE EASTERN PACIFIC WILL MOVE ONSHORE OVER  
NORTHWEST AND NORTHERN CALIFORNIA OVERNIGHT SUNDAY. A HEAD OF THE  
FRONT, RAIN WILL MOVE ONSHORE ON SUNDAY AFTERNOON OVER THE PACIFIC  
NORTHWEST COAST THAT WILL MOVE INLAND. RAIN AND HIGHER ELEVATION  
SNOW WILL DEVELOP OVER THE NORTHWEST/NORTHERN CALIFORNIA BY SUNDAY  
EVENING WITH SNOW EXPANDING INTO THE NORTHERN INTERMOUNTAIN REGION  
OVERNIGHT SUNDAY INTO MONDAY. ADDITIONALLY, A FRONT WILL MOVE  
INTO THE NORTHEAST SUNDAY EVENING INTO MONDAY. LIGHT SNOW WILL  
DEVELOP OVER PARTS OF THE NORTHEAST THROUGH EARLY MONDAY MORNING.  
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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