752  
FXUS01 KWBC 240756  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
355 AM EDT THU MAY 24 2018  
 
VALID 12Z THU MAY 24 2018 - 12Z SAT MAY 26 2018  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE NORTHERN PLAINS/UPPER MISSISSIPPI VALLEY AND THE CENTRAL  
PLAINS...  
   
..HEAVY RAIN POSSIBLE OVER PARTS OF THE SOUTHEAST
 
 
A WEAKENING FRONT OVER PARTS OF THE SOUTHEAST TO THE LOWER  
MISSISSIPPI VALLEY AND UPPER-LEVEL ENERGY WILL AID IN PRODUCING  
SHOWERS AND THUNDERSTORMS OVER PARTS OF THE SOUTHEAST/SOUTHERN  
MID-ATLANTIC WESTWARD TO MIDDLE/LOWER MISSISSIPPI VALLEY THROUGH  
FRIDAY EVENING. IN ADDITION, UPPER-LEVEL ENERGY OVER THE NORTHERN  
HIGH PLAINS INTO THE CENTRAL ROCKIES WILL SLOWLY MOVE EASTWARD TO  
THE UPPER GREAT LAKES/WESTERN OHIO VALLEY BY FRIDAY NIGHT. THE  
ENERGY WILL AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER PARTS  
OF THE NORTHERN HIGH PLAINS INTO THE UPPER MISSISSIPPI VALLEY AND  
SOUTHWARD TO THE SOUTHERN HIGH PLAINS THAT WILL MOVE SLOWLY  
EASTWARD INTO THE UPPER GREAT LAKES TO THE MIDDLE MISSISSIPPI  
VALLEY BY FRIDAY EVENING. THERE WILL BE A DIURNAL COMPONENT TO  
THE AREAL COVERAGE WITH THESE THUNDERSTORMS. ELSEWHERE, A FRONT  
NEAR NORTHERN MAINE WILL AID IN PRODUCING SHOWERS AND  
THUNDERSTORMS OVER PARTS OF NORTHERN NEW ENGLAND ON FRIDAY  
AFTERNOON INTO FRIDAY EVENING.  
 
MEANWHILE, A DEVELOPING UPPER-LEVEL LOW OFF THE CALIFORNIA COAST  
WILL SLOWLY MOVE INLAND OVER CALIFORNIA INTO PARTS OF THE GREAT  
BASIN FRIDAY EVENING INTO SATURDAY. THE ENERGY WILL AID IN  
PRODUCING COASTAL RAIN AND INLAND SHOWERS/THUNDERSTORMS OVER PARTS  
OF NORTHERN/CENTRAL CALIFORNIA BY THURSDAY EVENING. THE COASTAL  
RAIN AND INLAND SHOWERS/THUNDERSTORMS WILL EXPAND INTO PARTS OF  
THE PACIFIC NORTHWEST AND THE GREAT BASIN OVERNIGHT THURSDAY  
CONTINUING INTO FRIDAY EVENING/SATURDAY. BEFORE THE UPPER-LEVEL  
LOW DEVELOPS, WEAK UPPER-LEVEL ENERGY OVER PARTS OF THE PACIFIC  
NORTHWEST WILL AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER  
PARTS OF THE PACIFIC NORTHWEST AND THE NORTHERN INTERMOUNTAIN  
REGION THROUGH LATE THURSDAY NIGHT.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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