589  
FXUS01 KWBC 071958  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
357 PM EDT MON MAY 07 2018  
 
VALID 00Z TUE MAY 08 2018 - 00Z THU MAY 10 2018  
   
..A QUIETER WEATHER PATTERN ACROSS MOST OF THE NATION
 
 
UPPER-LEVEL ENERGY OVER THE NORTHERN HIGH PLAINS MOVES EASTWARD TO  
THE UPPER/MIDDLE MISSISSIPPI VALLEY BY WEDNESDAY. THE ENERGY WILL  
AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE  
NORTHERN INTERMOUNTAIN REGION/NORTHERN ROCKIES INTO PARTS OF THE  
NORTHERN PLAINS WILL END OVER THE NORTHERN INTERMOUNTAIN  
REGION/NORTHERN ROCKIES BY TUESDAY AFTERNOON. ALSO ON TUESDAY,  
THE SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE UPPER/MIDDLE  
MISSISSIPPI VALLEY AND INTO THE SOUTHERN PLAINS TUESDAY AFTERNOON  
INTO WEDNESDAY MORNING. OVERNIGHT TUESDAY, SHOWERS AND  
THUNDERSTORMS MOVE INTO PARTS OF THE UPPER GREAT LAKES AND THE  
OHIO/TENNESSEE VALLEYS.  
 
MEANWHILE, AND UPPER-LEVEL LOW OVER THE SOUTHERN  
APPALACHIANS/SOUTHERN MID-ATLANTIC WILL SLOWLY WEAKEN WHILE MOVING  
TO THE MID-ATLANTIC COAST BY WEDNESDAY. THE ENERGY WILL AID IN  
PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE APPALACHIANS  
AND THE SOUTHERN MID-ATLANTIC COAST THAT WILL WEAKEN OVERNIGHT  
MONDAY. THE UPPER-LEVEL ENERGY WILL AID IN DEVELOPING DIURNAL  
SHOWERS AND THUNDERSTORMS OVER THE APPALACHIANS ON TUESDAY THAT  
WILL, LIKEWISE, WEAKEN OVERNIGHT TUESDAY. SHOWERS AND  
THUNDERSTORMS WILL ALSO DEVELOP OVER PARTS OF THE MID-ATLANTIC  
COAST THROUGH WEDNESDAY MORNING.  
 
ADDITIONALLY, UPPER-LEVEL ENERGY OVER THE EASTERN PACIFIC WILL  
BEGIN TO MOVE ONSHORE OVER THE PACIFIC NORTHWEST OVERNIGHT TUESDAY  
INTO WEDNESDAY. RAIN WILL BEGIN TO DEVELOP OVER PARTS OF THE  
PACIFIC NORTHWEST COAST TUESDAY AFTERNOON. THE RAIN WILL MOVE  
INLAND TO PARTS OF THE NORTHERN INTERMOUNTAIN REGION/NORTHERN  
ROCKIES WITH SOME EMBEDDED THUNDERSTORMS BY WEDNESDAY.  
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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