422  
FXUS01 KWBC 080853  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
352 AM EST WED NOV 08 2017  
 
VALID 12Z WED NOV 08 2017 - 12Z FRI NOV 10 2017  
 
   
..HEAVY SNOW POSSIBLE OVER THE UPPER GREAT LAKES
 
 
...HEAVY RAIN POSSIBLE FOR PARTS OF THE PACIFIC NORTHWEST AND  
NORTHERN/CENTRAL CALIFORNIA...  
 
...TEMPERATURES WILL BE 10 TO 20 DEGREES BELOW AVERAGE OVER PARTS  
SOUTHERN PLAINS INTO LOWER MISSISSIPPI VALLEY...  
 
A FRONT EXTENDING FROM THE SOUTHEAST TO THE WESTERN GULF COAST  
WILL MOVE SOUTHWARD INTO THE GULF OF MEXICO AND EASTWARD OVER THE  
WESTERN ATLANTIC BY WEDNESDAY EVENING, CONTINUING TO MOVE  
SOUTHEASTWARD TO THE SOUTHERN TIP OF FLORIDA BY THURSDAY EVENING.  
SHOWERS AND THUNDERSTORMS WILL DEVELOP FROM THE WESTERN GULF COAST  
TO THE CENTRAL GULF COAST ON WEDNESDAY THAT WILL END OVER THE  
WESTERN GULF COAST BY WEDNESDAY AFTERNOON. THE SHOWERS  
AND THUNDERSTORMS WILL EXPAND INTO PARTS OF THE EASTERN GULF COAST  
AND THE SOUTHEAST BY WEDNESDAY EVENING, ENDING OVER THE CENTRAL  
GULF COAST BY THURSDAY MORNING. THE SHOWERS AND THUNDERSTORMS  
WILL END OVER THE SOUTHEAST BY THURSDAY AFTERNOON INTO EVENING.  
IN ADDITION, RAIN WILL DEVELOP OVER PARTS OF THE SOUTHERN ROCKIES  
EASTWARD INTO THE SOUTHERN OHIO VALLEY/TENNESSEE VALLEY TO PARTS  
OF THE SOUTHERN MID-ATLANTIC ON WEDNESDAY MORNING. THE RAIN WILL  
MOVE INTO THE WESTERN GULF COAST BY WEDNESDAY AFTERNOON INTO  
EVENING AND INTO THE CENTRAL GULF COAST BY WEDNESDAY EVENING. THE  
RAIN WILL END OVER THE WESTERN/CENTRAL GULF COAST BY THURSDAY  
MORNING INTO AFTERNOON. THE RAIN ALSO ENDS OVER THE  
OHIO/TENNESSEE VALLEYS ON THURSDAY MORNING INTO AFTERNOON.  
ADDITIONALLY, RAIN WILL EXTEND FROM PARTS OF THE SOUTHERN  
MID-ATLANTIC INTO THE SOUTHEAST ON THURSDAY INTO THURSDAY EVENING.  
 
MEANWHILE, A FRONT OVER THE UPPER MIDWEST WILL MOVE SOUTHEASTWARD  
TO THE LOWER GREAT LAKES/OHIO VALLEY TO THE SOUTHERN PLAINS/LOWER  
MISSISSIPPI VALLEY BY THURSDAY EVENING. LIGHT SNOW WILL DEVELOP  
OVER PARTS OF THE UPPER GREAT LAKES AND THE NORTHERN PLAINS BY  
WEDNESDAY AFTERNOON THAT WILL EXPAND INTO THE UPPER MISSISSIPPI  
VALLEY BY WEDNESDAY EVENING. THE SNOW ENDS OVER THE NORTHERN  
PLAINS OVERNIGHT WEDNESDAY AND OVER THE UPPER MISSISSIPPI VALLEY  
BY THURSDAY EVENING. THE SNOW WILL MOVE INTO PARTS OF THE LOWER  
GREAT LAKES THURSDAY AFTERNOON INTO EVENING.  
 
A THIRD FRONT WILL MOVE ONSHORE OVER THE WEST COAST OVERNIGHT  
WEDNESDAY THAT WILL MOVE EASTWARD TO THE NORTHERN ROCKIES TO THE  
GREAT BASIN AND SOUTHERN CALIFORNIA BY THURSDAY EVENING. RAIN AND  
SNOW WILL DEVELOP AT THE HIGHEST ELEVATIONS OF THE PACIFIC  
NORTHWEST AND NORTHERN/CENTRAL CALIFORNIA ON WEDNESDAY AFTERNOON.  
THE RAIN AND HIGHEST ELEVATION SNOW WILL EXTEND INTO PARTS OF THE  
GREAT BASIN AND THE NORTHERN INTERMOUNTAIN REGION BY THURSDAY  
MORNING. FURTHERMORE, THE RAIN AND HIGHEST ELEVATION SNOW WILL  
CONTINUE TO EXPAND EASTWARD INTO THE NORTHERN ROCKIES BY THURSDAY  
EVENING.  
 
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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