480  
FXUS01 KWBC 110658  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
258 AM EDT SAT AUG 11 2018  
 
VALID 12Z SAT AUG 11 2018 - 12Z MON AUG 13 2018  
   
..HEAVY RAIN POSSIBLE OVER PORTIONS OF NEW ENGLAND
 
 
   
..HEAVY RAIN EXPECT OVER PARTS OF THE SOUTHERN PLAINS
 
 
...TEMPERATURES WILL BE 10 TO 20 DEGREES ABOVE AVERAGE OVER THE  
NORTHERN INTERMOUNTAIN REGION TO THE NORTHERN HIGH PLAINS...  
 
A QUASI-STATIONARY FRONT EXTENDING FROM SOUTHERN NEW ENGLAND  
SOUTHWESTWARD ACROSS THE OHIO VALLEY INTO THE SOUTHERN PLAINS WILL  
SLOWLY DISSIPATE OVER THE NORTHEAST INTO THE CENTRAL PLAINS BY  
SUNDAY EVENING. SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND  
NEAR THE BOUNDARY FROM PARTS OF THE NORTHEAST TO THE SOUTHERN  
PLAINS THROUGH SUNDAY EVENING, TOO. A SECOND FRONT EXTENDING FROM  
THE MID-ATLANTIC SOUTHWESTWARD TO THE SOUTHERN PLAINS WILL AID IN  
PRODUCING SHOWERS AND THUNDERSTORMS ACROSS THE REGION ALSO THROUGH  
SUNDAY EVENING. IN ADDITION, AN UPPER-LEVEL LOW OVER TEXAS WILL  
BE QUASI-STATIONARY THROUGH MONDAY. THE ENERGY WILL AID IN  
PRODUCING SHOWERS AND THUNDERSTORMS OVER TEXAS AND PARTS OF THE  
SOUTHERN HIGH PLAINS ALSO THROUGH MONDAY.  
 
MEANWHILE, MONSOONAL MOISTURE AND DAYTIME HEATING WILL AID IN  
PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE  
SOUTHWEST/GREAT BASIN AND PARTS OF THE CENTRAL/SOUTHERN ROCKIES  
THROUGH SUNDAY EVENING. THE AREAL COVERAGE WILL BE GREATEST  
DURING THE LATE AFTERNOON INTO THE LATE EVENING ON SATURDAY AND  
SUNDAY. ADDITIONALLY, A FRONT OVER THE PACIFIC NORTHWEST/NORTHERN  
INTERMOUNTAIN REGION WILL MOVE EASTWARD TO THE NORTHERN PLAINS  
SOUTHWESTWARD INTO THE GREAT BASIN BY SUNDAY EVENING. THE  
BOUNDARY WILL AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER  
PARTS OF THE PACIFIC NORTHWEST INTO PARTS OF THE NORTHERN ROCKIES  
THROUGH SUNDAY MORNING.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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