631  
FXUS01 KWBC 100737  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
336 AM EDT FRI AUG 10 2018  
 
VALID 12Z FRI AUG 10 2018 - 12Z SUN AUG 12 2018  
 
...HEAVY RAIN OVER PARTS OF THE SOUTHERN PLAINS AND PARTS OF NEW  
ENGLAND...  
 
...TEMPERATURES WILL BE 15 TO 25 DEGREES ABOVE AVERAGE OVER PARTS  
OF THE NORTHERN INTERMOUNTAIN REGION/NORTHERN ROCKIES...  
 
A FRONT EXTENDING FROM THE NORTHEAST SOUTHWESTWARD ACROSS THE  
LOWER GREAT LAKES INTO THE MIDDLE MISSISSIPPI VALLEY/CENTRAL  
PLAINS WILL BE QUASI-STATIONARY AND DISSIPATES BY SATURDAY  
AFTERNOON. SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND NEAR  
THE BOUNDARY FROM PARTS OF THE NORTHEAST INTO THE MIDDLE  
MISSISSIPPI VALLEY THROUGH SATURDAY EVENING. A SECOND FRONT  
EXTENDING FROM THE MID-ATLANTIC SOUTHWESTWARD ACROSS THE TENNESSEE  
VALLEY INTO PART OF THE SOUTHERN PLAINS WILL BE QUASI-STATIONARY  
FROM THE TENNESSEE VALLEY TO THE SOUTHERN PLAINS THROUGH SUNDAY.  
THE EASTERN PARTS OF THE BOUNDARY WILL LIFT NORTHWARD INTO THE  
NORTHERN MID-ATLANTIC COAST BY SATURDAY EVENING INTO SUNDAY.  
SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG THE FRONT FROM THE  
MID-ATLANTIC TO THE SOUTHERN PLAINS THROUGH SUNDAY.  
 
MEANWHILE, MONSOONAL MOISTURE AND DAYTIME HEATING WILL AID IN  
PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE  
SOUTHWEST/GREAT BASIN INTO PARTS OF THE CENTRAL/SOUTHERN ROCKIES  
THROUGH SATURDAY EVENING. THE GREATEST COVERAGE OF THE SHOWERS  
AND THUNDERSTORMS WILL BE DURING THE LATE AFTERNOON INTO THE LATE  
EVENING ON FRIDAY AND SATURDAY. IN ADDITION, A FRONT WILL MOVE  
ONSHORE OVER THE PACIFIC NORTHWEST BY FRIDAY EVENING AND MOVE  
INLAND TO PARTS OF THE NORTHERN HIGH PLAINS/NORTHERN ROCKIES INTO  
PARTS OF THE GREAT BASIN BY SATURDAY EVENING. THE SYSTEM WILL AID  
IN DEVELOPING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE PACIFIC  
NORTHWEST INTO PARTS OF THE NORTHERN INTERMOUNTAIN REGION LATE  
FRIDAY NIGHT INTO SATURDAY EVENING.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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