457  
FXUS01 KWBC 111958  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
257 PM EST MON DEC 11 2017  
 
VALID 00Z TUE DEC 12 2017 - 00Z THU DEC 14 2017  
 
...CRITICAL FIRE WEATHER CONDITIONS PERSISTING ACROSS SOUTHERN  
CALIFORNIA AND ALSO PRESENT FOR THE CENTRAL PLAINS....  
 
...LOCALLY HEAVY LAKE EFFECT SNOWFALL TO CONTINUE DOWNWIND OF THE  
GREAT LAKES THROUGH WEDNESDAY MORNING...  
 
...COASTAL STORM TO BRING SNOWY CONDITIONS TO PORTIONS OF THE  
NORTHEAST ON TUESDAY...  
 
ANOTHER SURGE OF COLD AIR AND ROUND OF LIGHT SNOW IS EXPECTED  
ACROSS THE GREAT LAKES REGION THROUGH TUESDAY AS A CLIPPER SYSTEM  
MOVES THROUGH. WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES  
ARE IN EFFECT FOR MICHIGAN, SOUTHEAST WISCONSIN, NORTHERN INDIANA  
AND NORTH-CENTRAL OHIO. TEMPERATURES ON TUESDAY WILL AVERAGE 10 TO  
15 DEGREES COLDER THAN USUAL FOR WISCONSIN AND MICHIGAN. AREAS  
DOWNWIND OF LAKES SUPERIOR AND MICHIGAN WILL HAVE ENHANCED  
SNOWFALL ONCE THE SURFACE WINDS TURN NORTHWESTERLY... A LAKE  
EFFECT SNOW WARNING IS ALSO IN EFFECT FOR COUNTIES DOWNWIND OF  
LAKE ERIE.  
 
AS THE STORM SYSTEM TRACKS TOWARD THE NORTHEAST ON TUESDAY, LIGHT  
TO MODERATE SNOW WILL OVERSPREAD UPSTATE NEW YORK INTO INTERIOR  
NEW ENGLAND BY EARLY AFTERNOON. AS TUESDAY PROGRESSES, THE LOW  
WILL DEEPEN AS IT LIFTS THROUGH THE NORTHEAST. AT THIS TIME, THE  
GREATER SNOW ACCUMULATIONS ARE A FORECAST FOR THE HIGHER TERRAIN.  
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT  
FOR UPSTATE NEW YORK, VERMONT AND MASSACHUSETTS... WHILE A WINTER  
STORM WATCH IS IN EFFECT FOR NEW HAMPSHIRE AND MAINE.  
 
FOR THE WEST, WARM AND DRY CONDITIONS WILL CONTINUE AS HIGH  
PRESSURE REMAINS ANCHORED OVER THE REGION. ABOVE NORMAL  
TEMPERATURES ARE FORECAST FOR A VAST MAJORITY OF THE WEST,  
SOUTHWEST AND CENTRAL PLAINS. THE WARM AND DRY CONDITIONS HAVE  
INCREASED THE RISK FOR THE SPREAD OF WILDFIRES. STRONG, GUSTY  
SANTA ANA WINDS WILL CONTINUE IN SOUTHERN CALIFORNIA AND WHILE  
WIND GUSTS ARE EXPECTED TO WEAKEN BY MID-WEEK, ELEVATED FIRE  
WEATHER CONCERNS WILL LINGER ACROSS SOUTHERN CALIFORNIA FOR  
ANOTHER COUPLE OF DAYS.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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