986  
FXUS01 KWBC 131934  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
234 PM EST SUN JAN 13 2019  
 
VALID 00Z MON JAN 14 2019 - 00Z WED JAN 16 2019  
   
..HEAVY SNOW FOR PARTS OF THE SOUTHERN SIERRAS
 
 
...HEAVY RAIN POSSIBLE FOR PARTS OF THE SOUTHERN CALIFORNIA  
COAST...  
 
WINTER STORM OVER THE MID-ATLANTIC WILL SLOWLY WIND DOWN AS LOW  
PRESSURE OFF THE MID-ATLANTIC COAST MOVES NORTHEASTWARD OUT OVER  
THE WESTERN ATLANTIC SUNDAY NIGHT. SNOW OVER PARTS OF THE MIDDLE  
MISSISSIPPI VALLEY/WESTERN OHIO VALLEY WILL SLOWLY WIND DOWN  
OVERNIGHT SUNDAY. SNOW AND RAIN ASSOCIATED WITH THE SYSTEM WILL,  
LIKEWISE, SLOWLY WIND DOWN OVER THE MID-ATLANTIC THROUGH MONDAY  
MORNING. RAIN OVER THE TENNESSEE VALLEY WILL ALSO WIND DOWN BY  
MONDAY MORNING. THE SNOW OVER THE SOUTHERN OHIO VALLEY AND THE  
CENTRAL APPALACHIANS WILL LINGER OVER PARTS OF THE CENTRAL  
APPALACHIANS THROUGH TUESDAY MORNING.  
 
MEANWHILE, UPPER-LEVEL ENERGY OVER THE SOUTHWEST WILL WEAKEN OVER  
THE AREA. LOWER ELEVATION RAIN AND SNOW OVER PARTS OF THE  
SOUTHWEST/SOUTHERN ROCKIES WILL END BY MONDAY MORNING. IN  
ADDITION, A FRONT OVER SOUTHERN CANADA WILL MOVE INTO PARTS OF THE  
UPPER GREAT LAKES ON MONDAY THAT WILL RETREAT BACK NORTHWARD INTO  
ONTARIO OVERNIGHT MONDAY. SNOW WILL DEVELOP OVER PARTS OF THE  
UPPER GREAT LAKES ON MONDAY CONTINUING INTO TUESDAY MORNING.  
 
AN UPPER-LEVEL LOW OFF THE CALIFORNIA COAST WILL BEGIN TO MOVE  
ONSHORE OVER CALIFORNIA OVERNIGHT SUNDAY THAT WILL SHOW SIGNS OF  
WEAKENING BY TUESDAY MORNING. THE STORM WILL BEGIN TO PRODUCE  
RAIN OVER PARTS OF THE CALIFORNIA COAST OVERNIGHT SUNDAY. AS THE  
RAIN MOVES INLAND SNOW WILL START TO DEVELOP OVER THE SOUTHERN  
SIERRAS ON MONDAY AFTERNOON. THE RAIN AND SNOW WILL CONTINUE OVER  
PARTS OF CALIFORNIA THROUGH TUESDAY MORNING.  
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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