050  
FXUS01 KWBC 280723  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
323 AM EDT SAT JUN 28 2025  
 
VALID 12Z SAT JUN 28 2025 - 12Z MON JUN 30 2025  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE UPPER MISSISSIPPI VALLEY AND NORTHERN/CENTRAL PLAINS ON  
SATURDAY AND OVER THE UPPER GREAT LAKES AND UPPER/MIDDLE  
MISSISSIPPI VALLEY ON SUNDAY...  
 
A FRONT EXTENDING FROM THE LOWER GREAT LAKES TO THE OHIO VALLEY  
WILL MOVE EASTWARD OFF THE NORTHEAST COAST BY SUNDAY EVENING.  
SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE  
BOUNDARY OVER THE NORTHEAST, OHIO VALLEY, AND MID-ATLANTIC. ON  
SATURDAY, SOME THUNDERSTORMS WILL BE STRONG TO SEVERE OVER PARTS  
OF THE NORTHEAST AND NORTHERN MID-ATLANTIC. SOUTH OF THE FRONT,  
UPPER-LEVEL IMPULSES, DAYTIME HEATING, AND AMPLE AMOUNTS OF  
MOISTURE WILL DEVELOP SHOWERS AND THUNDERSTORMS OVER THE  
SOUTHEAST, TENNESSEE VALLEY, AND GULF COAST.  
 
ON SUNDAY, THE FRONT MOVES FARTHER OUT OVER THE WESTERN ATLANTIC  
AS A STATIONARY FRONT LINGERS ACROSS THE MID-ATLANTIC. SHOWERS AND  
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE OHIO VALLEY AND THE  
MID-ATLANTIC. LIKEWISE, SOME THUNDERSTORMS WILL BE STRONG OR  
SEVERE OVER THE MID-ATLANTIC. SIMILARLY, UPPER-LEVEL IMPULSES,  
DAYTIME HEATING, AND AMPLE AMOUNTS OF MOISTURE WILL DEVELOP  
SHOWERS AND THUNDERSTORMS OVER THE SOUTHERN MID-ATLANTIC,  
SOUTHEAST, OHIO/TENNESSEE VALLEYS, AND GULF COAST.  
 
MEANWHILE, A SECOND FRONT OVER THE NORTHERN PLAINS TO THE CENTRAL  
ROCKIES AND GREAT BASIN ON SATURDAY WILL MOVE EASTWARD TO THE  
GREAT LAKES, MIDDLE MISSISSIPPI VALLEY, AND INTO THE SOUTHERN  
PLAINS BY MONDAY. THE BOUNDARY WILL CREATE SHOWERS AND  
THUNDERSTORMS OVER THE UPPER MIDWEST. ON SATURDAY, SEVERE  
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE UPPER MISSISSIPPI  
VALLEY AND NORTHERN/CENTRAL PLAINS. THEREFORE, THE SPC HAS ISSUED  
A SLIGHT RISK (LEVEL 2/5) OF SEVERE OVER PARTS OF THE UPPER  
MISSISSIPPI VALLEY AND NORTHERN/CENTRAL PLAINS THROUGH SUNDAY  
MORNING. THE HAZARDS ASSOCIATED WITH THESE THUNDERSTORMS ARE  
FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND GUSTS, HAIL, AND A  
FEW TORNADOES. HOWEVER, THERE WILL BE AN INCREASED THREAT OF HAIL  
TWO INCHES OR GREATER OVER MINNESOTA.  
 
IN ADDITION, UPPER-LEVEL IMPULSES, DAYTIME HEATING, AND MOISTURE  
WILL CREATE SHOWERS AND THUNDERSTORMS ON SATURDAY OVER THE HIGH  
PLAINS, CENTRAL/SOUTHERN PLAINS, AND MIDDLE MISSISSIPPI VALLEY.  
 
ON SUNDAY, AS THE FRONT CONTINUES TO MOVE EASTWARD, SHOWERS AND  
SEVERE THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE UPPER GREAT  
LAKES AND UPPER/MIDDLE MISSISSIPPI VALLEY. THEREFORE, THE SPC HAS  
ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE OVER PARTS OF THE UPPER  
GREAT LAKES AND UPPER/MIDDLE MISSISSIPPI VALLEY FROM SUNDAY  
THROUGH MONDAY MORNING. THE HAZARDS ASSOCIATED WITH THESE  
THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND  
GUSTS, AND A MINIMAL THREAT OF TORNADOES AND HAIL.  
 
MOREOVER, UPPER-LEVEL IMPULSES, DAYTIME HEATING, AND MOISTURE WILL  
CREATE SHOWERS AND THUNDERSTORMS OVER THE HIGH PLAINS,  
CENTRAL/SOUTHERN PLAINS, AND MIDDLE/LOWER MISSISSIPPI VALLEY ON  
SUNDAY.  
 
ELSEWHERE, ON SATURDAY, WEAK ONSHORE FLOW AND UPPER-LEVEL ENERGY  
WILL PRODUCE SCATTERED SHOWERS OVER PARTS OF THE PACIFIC NORTHWEST.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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