443  
FXUS01 KWBC 232011  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
411 PM EDT SAT JUN 23 2018  
 
VALID 00Z SUN JUN 24 2018 - 00Z TUE JUN 26 2018  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE MID-ATLANTIC, SOUTHERN PLAINS TO SOUTHERN APPALACHIANS, AND  
PARTS OF THE CENTRAL HIGH PLAINS...  
 
...HEAVY RAIN POSSIBLE OVER PARTS OF THE CENTRAL PLAINS INTO THE  
MIDDLE MISSISSIPPI VALLEY..  
 
A WARM FRONT EXTENDING FROM THE SOUTHERN PLAINS TO THE  
MID-ATLANTIC WILL LIFT NORTHWARD TO THE MIDDLE MISSISSIPPI VALLEY  
WHILE EXTENDING EASTWARD TO THE MID-ATLANTIC BY MONDAY. A  
REINFORCING FRONT WILL MOVE SOUTHWARD FROM SOUTHERN CANADA INTO  
THE NORTHEAST AND THE OHIO VALLEY BEFORE DISSIPATING ON SUNDAY  
EVENING. FURTHERMORE, A NEW COLD FRONT WILL DEVELOP OVER THE  
NORTHERN/CENTRAL PLAINS INTO THE CENTRAL PLAINS/GREAT BASIN  
OVERNIGHT SATURDAY, MOVING SOUTHEASTWARD TO THE CENTRAL/SOUTHERN  
PLAINS BY MONDAY. MOISTURE POOLING ALONG AFOREMENTIONED WARM  
FRONT WILL, LIKEWISE, MOVE NORTHWARD TO THE MIDDLE MISSISSIPPI  
VALLEY INTO THE MID-ATLANTIC BY MONDAY. THE MOISTURE AND FRONT  
WILL AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE  
MIDDLE MISSISSIPPI VALLEY TO THE MID-ATLANTIC THAT WILL MOVE  
SOUTHWARD TO THE SOUTHERN PLAINS TO THE CENTRAL/SOUTHERN  
APPALACHIANS BY SUNDAY MORNING BEFORE LIFTING NORTHWARD TO THE  
MIDDLE MISSISSIPPI VALLEY TO THE SOUTHERN MID-ATLANTIC BY MONDAY.  
ADDITIONALLY, SHOWERS AND THUNDERSTORMS WILL ALSO DEVELOP ALONG  
AND AHEAD OF THE DISSIPATING FRONT OVER PARTS OF THE NORTHEAST  
INTO THE NORTHERN PLAINS THAT WILL CONTINUE OVER PARTS OF THE AREA  
THROUGH SUNDAY EVENING. RAIN WILL ALSO DEVELOP OVER PARTS OF THE  
NORTHEAST OVERNIGHT SUNDAY INTO MONDAY. ADDITIONALLY, THE  
UPPER-LEVEL ENERGY ASSOCIATED WITH THE DEVELOPING FRONT WILL AID  
IN PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS OF THE NORTHERN  
ROCKIES INTO THE NORTHERN PLAINS THAT WILL MOVE EAST/SOUTHWARD  
INTO PARTS OF THE NORTHERN/CENTRAL PLAINS BY SUNDAY MORNING. THE  
SHOWERS AND THUNDERSTORMS WILL EXPAND EASTWARD INTO PARTS OF THE  
UPPER/MIDDLE MISSISSIPPI VALLEY ON SUNDAY INTO MONDAY.  
 
MEANWHILE, A FRONT OVER THE NORTH PACIFIC WILL MOVE ONSHORE OVER  
THE PACIFIC NORTHWEST BY SUNDAY EVENING CONTINUING TO MOVE INLAND  
TO THE NORTHERN INTERMOUNTAIN REGION TO NORTHERN CALIFORNIA BY  
MONDAY. RAIN WILL DEVELOP OVER PARTS OF THE PACIFIC NORTHWEST  
COAST OVERNIGHT SUNDAY MOVING INLAND AND DEVELOPING EMBEDDED  
THUNDERSTORMS ON MONDAY.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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