454  
FXUS01 KWBC 070758  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
258 AM EST TUE NOV 07 2017  
 
VALID 12Z TUE NOV 07 2017 - 12Z THU NOV 09 2017  
 
...HEAVY RAIN POSSIBLE OVER PARTS OF THE PACIFIC NORTHWEST AND  
NORTHERN CALIFORNIA...  
   
..HEAVY RAIN POSSIBLE OVER PARTS OF THE SOUTHERN PLAINS
 
 
   
..FREEZING RAIN POSSIBLE OVER PARTS OF THE COLUMBIA RIVER GORGE
 
 
A FRONT EXTENDING FROM THE CAROLINAS ROUGHLY WESTWARD TO THE  
SOUTHERN HIGH PLAINS WILL SLOWLY MOVE SOUTHEASTWARD OFF MOST OF  
THE SOUTHEAST COAST AND THE GULF COAST BY WEDNESDAY EVENING.  
SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE  
OHIO/TENNESSEE VALLEYS INTO PARTS OF THE MIDDLE/LOWER MISSISSIPPI  
VALLEY THAT WILL MOVE EASTWARD OFF THE SOUTHEAST COAST BY  
WEDNESDAY MORNING. RAIN WILL DEVELOP OVER PARTS OF THE CENTRAL  
APPALACHIANS/NORTHERN MID-ATLANTIC ON TUESDAY MOVING OFF THE  
NORTHERN MID-ATLANTIC COAST OVERNIGHT TUESDAY. ON TUESDAY  
EVENING, MOISTURE FROM THE GULF OF MEXICO WILL MOVE NORTHWESTWARD  
OVER THE SOUTHERN PLAINS THROUGH WEDNESDAY EVENING. UPPER-LEVEL  
ENERGY OVER THE GREAT BASIN/CENTRAL ROCKIES AND SOUTHERN  
CALIFORNIA WILL MOVE SOUTHEASTWARD TO THE SOUTHERN PLAINS BY  
WEDNESDAY INTO THURSDAY. SHOWERS AND THUNDERSTORMS WILL DEVELOP  
OVER PARTS OF THE SOUTHERN PLAINS OVERNIGHT TUESDAY THAT WILL  
EXPAND INTO THE LOWER MISSISSIPPI VALLEY BY WEDNESDAY MORNING AND  
INTO THE SOUTHEAST BY WEDNESDAY EVENING. IN ADDITION, RAIN WILL  
ALSO DEVELOP PARTS OF THE SOUTHERN PLAINS OVERNIGHT TUESDAY AND  
INTO PARTS OF THE LOWER MISSISSIPPI VALLEY AND THE SOUTHEAST  
WEDNESDAY INTO WEDNESDAY EVENING.  
 
THE AFOREMENTIONED UPPER-LEVEL ENERGY OVER THE CENTRAL ROCKIES  
WILL ALSO PRODUCE SNOW AND LOWER ELEVATION RAIN OVER PARTS OF THE  
CENTRAL ROCKIES AND INTO PARTS OF THE SOUTHERN ROCKIES ALONG WITH  
PARTS OF THE SOUTHERN/CENTRAL HIGH PLAINS ON TUESDAY ENDING ON  
WEDNESDAY MORNING.  
 
MEANWHILE, LAKE EFFECT SNOW WILL DEVELOP OVER PARTS OF THE UPPER  
PENINSULA OF MICHIGAN ON TUESDAY INTO TUESDAY EVENING.  
ADDITIONALLY, A FRONT OVER SOUTH-CENTRAL CANADA WILL MOVE INTO THE  
UPPER MIDWEST OVERNIGHT TUESDAY INTO WEDNESDAY.  
 
MORE TO FOLLOW  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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