537  
FXUS01 KWBC 281938  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
338 PM EDT SAT JUN 28 2025  
 
VALID 00Z SUN JUN 29 2025 - 00Z TUE JUL 01 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...  
 
THE LEADING LOW PRESSURE SYSTEM IS TRACKING FROM THE GREAT  
LAKES/NORTHEAST REGION TODAY THROUGH SUNDAY. SHOWERS AND  
THUNDERSTORMS ARE DEVELOPING ALONG AND AHEAD OF THIS SYSTEM FROM  
THE MID-ATLANTIC TO THE NORTHEAST AS WELL AS THE GREAT LAKES  
REGION. 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. THE STORM PREDICTION CENTER HAS A SLIGHT RISK IN EFFECT FOR  
PORTIONS OF THE NORTHERN MID-ATLANTIC AND THE NORTHEAST FOR SEVERE  
STORMS AND WPC HAS MUCH OF THE SAME AREA IN A MARGINAL RISK FOR  
EXCESSIVE RAINFALL AND LOCAL FLASH FLOODING CONCERNS.  
 
A SECOND LOW PRESSURE SYSTEM WILL BE TRACKING THROUGH THE NORTHERN  
PLAINS AND UPPER MISSISSIPPI VALLEY. SCATTERED TO WIDESPREAD  
CONVECTION IS EXPECTED AHEAD OF AND ALONG THE APPROACHING FRONTS  
THROUGH MONDAY. THE ENVIRONMENT WILL BE CONDUCIVE FOR SEVERE  
THUNDERSTORMS TO DEVELOP ACROSS THE NORTHERN/CENTRAL PLAINS AND  
PORTIONS OF THE UPPER MISSISSIPPI VALLEY. THE STORM PREDICTION  
CENTER HAS A SLIGHT RISK IN EFFECT THROUGH SUNDAY MORNING AND WPC  
HAS MUCH OF THE SAME AREA IN A MARGINAL RISK FOR EXCESSIVE  
RAINFALL AND LOCAL FLASH FLOODING CONCERNS. 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. ADDITIONALLY, WEAK ONSHORE FLOW AND UPPER-LEVEL ENERGY  
WILL PRODUCE SCATTERED SHOWERS OVER PARTS OF THE PACIFIC NORTHWEST.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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