578  
FXUS01 KWBC 120758  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
357 AM EDT THU OCT 12 2017  
 
VALID 12Z THU OCT 12 2017 - 12Z SAT OCT 14 2017  
 
...MODERATE SNOW OVER PARTS OF THE CASCADES AND THE NORTHERN  
ROCKIES ...  
   
..HEAVY RAIN POSSIBLE OVER PARTS OF PACIFIC NORTHWEST COAST
 
 
UPPER-LEVEL ENERGY OVER PARTS OF THE NORTHEAST WILL MOVE OUT OVER  
THE WESTERN ATLANTIC OVERNIGHT THURSDAY. THE SYSTEM WILL PRODUCE  
LIGHT RAIN OVER PARTS OF THE NORTHEAST INTO THE MID-ATLANTIC THAT  
WILL END OVER THE NORTHEAST/NORTHERN MID-ATLANTIC BY LATE THURSDAY  
NIGHT. EARLY ON THURSDAY MORNING, ONSHORE FLOW WILL DEVELOP OVER  
PARTS OF THE NORTHERN MID-ATLANTIC THAT WILL MOVE INTO THE  
SOUTHERN MID-ATLANTIC BY THURSDAY EVENING AND CONTINUING INTO  
FRIDAY EVENING. LIGHT RAIN AND DRIZZLE WILL DEVELOP OVER PARTS OF  
THE MID-ATLANTIC ON THURSDAY CONTINUING INTO FRIDAY EVENING. IN  
ADDITION, UPPER-LEVEL ENERGY AND EASTERLY FLOW OFF THE ATLANTIC  
WILL AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER THE FLORIDA  
PENINSULA ON THURSDAY INTO FRIDAY.  
 
MEANWHILE, A FRONT OVER THE NORTHERN PLAINS INTO THE CENTRAL  
ROCKIES/GREAT BASIN WILL MOVE SLOWLY EASTWARD TO THE UPPER GREAT  
LAKE/MIDDLE MISSISSIPPI VALLEY INTO PARTS OF THE CENTRAL PLAINS  
AND SOUTHERN HIGH PLAINS BY FRIDAY EVENING. MOISTURE FROM THE  
ATLANTIC WILL MOVE INTO THE GREAT LAKES THROUGH LATE THURSDAY  
EVENING. LIGHT RAIN WILL DEVELOP OVER PARTS OF THE GREAT LAKES  
THROUGH EARLY FRIDAY MORNING. MOISTURE WILL POOL ALONG THE FRONT  
OVERNIGHT THURSDAY AIDING IN THE DEVELOPMENT OF SHOWERS AND  
THUNDERSTORMS OVER PARTS OF THE MIDDLE MISSISSIPPI VALLEY ON  
FRIDAY AFTERNOON INTO FRIDAY EVENING WITH LIGHT RAIN MOVING INTO  
THE UPPER GREAT LAKES BY FRIDAY EVENING.  
 
   
..MORE TO FOLLOW
 
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HPC Page Main Text Page