069  
FXUS01 KWBC 032001  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
300 PM EST THU JAN 03 2019  
 
VALID 00Z FRI JAN 04 2019 - 00Z SUN JAN 06 2019  
 
...THERE IS A SLIGHT RISK OF EXCESSIVE RAIN OVER CENTRAL GULF  
COAST...  
 
...HEAVY RAIN POSSIBLE OVER PARTS OF THE SOUTHERN  
APPALACHIANS/NORTHERN ARKANSAS AND PARTS OF THE PACIFIC NORTHWEST  
COAST...  
 
...HEAVY SNOW POSSIBLE OVER PARTS OF THE NORTHERN CASCADES/OLYMPIC  
PENINSULA AND THE SIERRAS...  
 
AN UPPER-LEVEL LOW OVER THE SOUTHERN PLAINS WILL MOVE  
NORTHEASTWARD TO THE MID-ATLANTIC BY SATURDAY. THE STORM WILL  
PRODUCE SNOW WITH POCKETS OF RAIN/FREEZING RAIN OVER PARTS OF  
OKLAHOMA THAT WILL END OVERNIGHT THURSDAY. RAIN WITH EMBEDDED  
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE LOWER MISSISSIPPI  
VALLEY THAT WILL MOVE EASTWARD TO THE SOUTHEAST BY FRIDAY  
AFTERNOON. IN ADDITION, RAIN WILL DEVELOP OVER PARTS OF THE  
TENNESSEE VALLEY/EASTERN GULF COAST EASTWARD INTO PARTS OF THE  
SOUTHERN MID-ATLANTIC AND THE SOUTHEAST THAT WILL END OVER THE  
SOUTHERN MID-ATLANTIC OVERNIGHT FRIDAY WHILE CONTINUING OVER PARTS  
OF THE CENTRAL APPALACHIAN AND THE NORTHERN MID-ATLANTIC INTO  
SATURDAY. ON FRIDAY AFTERNOON, SHOWERS AND THUNDERSTORMS WILL  
DEVELOP ALONG AND AHEAD OF THE ASSOCIATED FRONT OVER PARTS OF THE  
SOUTHEAST AND SOUTHERN MID-ATLANTIC THAT WILL MOVE OFF THE COAST  
BY EARLY SATURDAY MORNING. ADDITIONALLY, AN AREA OF UPPER-LEVEL  
ENERGY OVER THE UPPER GREAT LAKES WILL MOVE OFF THE NEW ENGLAND  
COAST BY FRIDAY AFTERNOON. THE ENERGY WILL AID IN DEVELOPING  
LIGHT SNOW OVER PARTS OF THE UPPER GREAT LAKE THAT WILL END  
OVERNIGHT THURSDAY. LIGHT SNOW WILL ALSO DEVELOP OVER PARTS OF  
NORTHERN MAINE LATE THURSDAY NIGHT ENDING BY FRIDAY AFTERNOON.  
 
MEANWHILE, AN AREA OF WEAKENING UPPER-LEVEL ENERGY JUST OFF THE  
NORTHWEST COAST WILL MOVE INLAND TO WESTERN ONTARIO BY SATURDAY  
MORNING. A SECOND AREA OF UPPER-LEVEL ENERGY WILL MOVE ONSHORE  
OVER CALIFORNIA ON SATURDAY MORNING INTO AFTERNOON. THE SYSTEM  
WILL PRODUCE RAIN AND HIGHER ELEVATION SNOW OVER PARTS OF THE  
PACIFIC NORTHWEST WITH SNOW EXTENDING INTO PART OF THE NORTHERN  
ROCKIES THAT WILL WANE OVERNIGHT FRIDAY. AS THE SECOND AREA OF  
UPPER-LEVEL ENERGY MOVES ONSHORE, RAIN AND HIGHER ELEVATION SNOW  
WILL MOVE INTO CALIFORNIA ON SATURDAY MORNING INTO EVENING.  
LIKEWISE, RAIN AND HIGHER ELEVATION SNOW WILL RETURN TO THE  
NORTHWEST ON SATURDAY.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HPC Page Main Text Page