912  
FXUS01 KWBC 300736  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
335 AM EDT MON JUN 30 2025  
 
VALID 12Z MON JUN 30 2025 - 12Z WED JUL 02 2025  
 
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF THE  
CENTRAL/SOUTHERN PLAINS AND SOUTHERN ROCKIES/SOUTHERN HIGH PLAINS  
ON MONDAY AND THE MID-ATLANTIC ON TUESDAY...  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE MID-ATLANTIC ON TUESDAY...  
 
A FRONT EXTENDING FROM THE UPPER GREAT LAKES, MIDDLE MISSISSIPPI  
VALLEY, AND CENTRAL/SOUTHERN PLAINS WILL MOVE EASTWARD TO THE  
NORTHEAST COAST/MID-ATLANTIC/SOUTHEAST AND THEN WESTWARD INTO THE  
LOWER MISSISSIPPI VALLEY/SOUTHERN PLAINS BY WEDNESDAY. SHOWERS AND  
STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE  
BOUNDARY OVER PARTS OF THE GREAT LAKES/OHIO VALLEY AND MIDDLE  
MISSISSIPPI VALLEY INTO THE SOUTHERN PLAINS. IN ADDITION, THE  
SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY RAIN OVER PARTS OF  
THE CENTRAL/SOUTHERN PLAINS. THEREFORE, THE WPC HAS ISSUED A  
SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE  
CENTRAL/SOUTHERN PLAINS THROUGH TUESDAY MORNING. THE ASSOCIATED  
HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH FLOODING,  
WITH URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING AREAS THE  
MOST VULNERABLE.  
 
MOREOVER, UPPER-LEVEL ENERGY AND MOISTURE MOVING NORTHWESTWARD  
OVER THE SOUTHERN PLAINS INTO THE SOUTHERN ROCKIES WILL PRODUCE  
SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN OVER PARTS OF THE  
SOUTHERN ROCKIES/SOUTHERN HIGH PLAINS. THEREFORE, THE WPC HAS  
ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS  
OF THE SOUTHERN ROCKIES/SOUTHERN HIGH PLAINS THROUGH TUESDAY  
MORNING. THE ASSOCIATED HEAVY RAIN WILL CREATE MAINLY LOCALIZED  
AREAS OF FLASH FLOODING, WITH URBAN AREAS, ROADS, SMALL STREAMS,  
AND LOW-LYING AREAS THE MOST VULNERABLE.  
 
SOUTH AND EAST OF THE FRONT, UPPER-LEVEL IMPULSES, DAYTIME  
HEATING, AND MOISTURE WILL CREATE SHOWERS AND THUNDERSTORMS OVER  
THE OHIO/TENNESSEE VALLEYS, SOUTHERN PLAINS, LOWER MISSISSIPPI  
VALLEY, AND THE SOUTHEAST.  
 
ON TUESDAY, AS THE FRONT MOVES OUT OF THE OHIO VALLEY INTO THE  
MID-ATLANTIC, SHOWERS AND SEVERE THUNDERSTORMS WILL DEVELOP OVER  
PARTS OF THE MID-ATLANTIC. THEREFORE, THE SPC HAS ISSUED A SLIGHT  
RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER PARTS OF THE  
MID-ATLANTIC FROM TUESDAY THROUGH WEDNESDAY MORNING. THE HAZARDS  
ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE  
THUNDERSTORM WIND GUSTS, AND A MINIMAL THREAT OF TORNADOES AND  
HAIL.  
 
THE SHOWERS AND THUNDERSTORMS WILL ALSO PRODUCE HEAVY RAIN OVER  
PARTS OF THE MID-ATLANTIC. THEREFORE, THE WPC HAS ISSUED A SLIGHT  
RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE  
MID-ATLANTIC FROM TUESDAY THROUGH WEDNESDAY MORNING. THE  
ASSOCIATED HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH  
FLOODING, WITH URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING  
AREAS THE MOST VULNERABLE.  
 
FURTHER, ON TUESDAY, UPPER-LEVEL IMPULSES, DAYTIME HEATING, AND  
MOISTURE WILL CREATE SHOWERS AND THUNDERSTORMS OVER PARTS OF THE  
SOUTHERN HIGH PLAINS, THE SOUTHEAST, TENNESSEE VALLEYS, AND THE  
GULF COAST STATES. SIMILARLY, UPPER-LEVEL IMPULSES, DAYTIME  
HEATING, AND MOISTURE WILL CREATE SHOWERS AND THUNDERSTORMS OVER  
PARTS OF NORTHERN CALIFORNIA, GREAT BASIN, SOUTHWEST, AND  
CENTRAL/SOUTHERN ROCKIES.  
 
ELSEWHERE, UPPER-LEVEL RIDGING WILL BUILD INTO PARTS OF THE  
PACIFIC NORTHWEST, PROMPTING HEAT ADVISORIES OVER PARTS OF  
WASHINGTON STATE, OREGON, AND IDAHO FROM MONDAY MORNING INTO  
TUESDAY EVENING. FURTHERMORE, AS THE UPPER-LEVEL RIDGING EXTENDS  
INTO THE SOUTHWEST, EXTREME HEAT WARNINGS ARE POSTED OVER PARTS OF  
THE SOUTHWEST ON MONDAY AND TUESDAY.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 
 
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