636  
FXUS01 KWBC 232008  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
407 PM EDT MON OCT 23 2017  
 
VALID 00Z TUE OCT 24 2017 - 00Z THU OCT 26 2017  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE SOUTHERN MID-ATLANTIC...  
   
..HEAVY RAIN POSSIBLE OVER PARTS OF NEW ENGLAND
 
 
   
..HEAVY RAIN POSSIBLE OVER PARTS OF THE UPPER GREAT LAKES
 
 
A DEEP UPPER-LEVEL TROUGH OVER THE MIDDLE/UPPER MISSISSIPPI VALLEY  
WILL DEEPEN AND THE TROUGH AXIS WILL MOVE TO THE GREAT LAKES TO  
THE EASTERN GULF COAST BY WEDNESDAY. RAIN WILL DEVELOP OVER THE  
GREAT LAKES/OHIO VALLEY THROUGH WEDNESDAY MORNING. WET SNOW WILL  
ALSO DEVELOP OVER PARTS OF THE NORTHWESTERN PORTION OF THE UPPER  
PENINSULA OF MICHIGAN TUESDAY AFTERNOON INTO LATE TUESDAY EVENING.  
RAIN WILL ALSO DEVELOP OVER PARTS OF THE LOWER GREAT LAKES INTO  
THE CENTRAL APPALACHIANS THAT WILL MOVE SLOWLY MOVE INTO PARTS OF  
NORTHERN NEW ENGLAND BY WEDNESDAY MORNING.  
 
SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE  
ASSOCIATED FRONT FROM PARTS OF THE MID-ATLANTIC/SOUTHERN  
APPALACHIANS INTO THE SOUTHEAST THAT WILL MOVE NORTHEASTWARD INTO  
SOUTHERN NEW ENGLAND AND TO THE MID-ATLANTIC COAST BY TUESDAY  
MORNING. THE SHOWERS AND THUNDERSTORMS WILL MOVE OFF MOST OF THE  
SOUTHEAST COAST BY TUESDAY MORNING, TOO. THE SHOWERS AND  
THUNDERSTORMS WILL MOVE OFF THE MID-ATLANTIC COAST OVERNIGHT  
TUESDAY, WHILE LINGERING OVER PARTS OF SOUTHERN NEW ENGLAND  
THROUGH WEDNESDAY MORNING.  
   
..MORE TO FOLLOW
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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