003  
FXUS01 KWBC 252016  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
315 PM EST SUN NOV 25 2018  
 
VALID 00Z MON NOV 26 2018 - 00Z WED NOV 28 2018  
 
...SIGNIFICANT WINTER STORM WILL BRING HEAVY SNOW AND SOME  
BLIZZARD CONDITIONS FROM THE MIDDLE MISSISSIPPI VALLEY TO THE  
GREAT LAKES THROUGH MONDAY...  
   
..HEAVY SNOWFALL IMPACTS PARTS OF NEW ENGLAND BY TUESDAY
 
 
...HEAVY PRECIPITATION RETURNS TO THE PACIFIC NORTHWEST BY  
MONDAY...  
 
THE ONGOING WINTER STORM ACROSS THE CENTRAL U.S. TODAY WILL  
CONTINUE SHIFTING EASTWARD INTO THE MIDDLE MISSISSIPPI VALLEY  
TONIGHT AND INTO THE GREAT LAKES BY TOMORROW. SIGNIFICANT SNOWFALL  
AND BLIZZARD CONDITIONS ARE EXPECTED WITH UPWARDS OF 6 INCHES OF  
ADDITIONAL SNOWFALL LIKELY, WITH LOCALLY HIGHER AMOUNTS UP TO A  
FOOT. THE COMBINATION OF HEAVY SNOW, GUSTY WINDS, AND BLIZZARD  
CONDITIONS WILL CONTINUE TO RESULT IN DANGEROUS TRAVEL CONDITIONS  
AND POWER OUTAGES. BLIZZARD AND WINTER STORM WARNINGS, ALONG WITH  
WINTER WEATHER ADVISORIES ARE IN EFFECT FROM PARTS OF THE CENTRAL  
PLAINS TO LOWER MICHIGAN. SEE WWW.WEATHER.GOV FOR ADDITIONAL  
DETAILS ON WATCHES AND WARNINGS IN EFFECT. SOUTH OF THE SNOW AREA,  
LOCALLY HEAVY RAIN WILL BE POSSIBLE FROM THE OHIO VALLEY TO THE  
GULF COAST AS WELL.  
 
THIS SAME SYSTEM WILL MOVE INTO THE NORTHEAST AND MID-ATLANTIC  
REGION BY TUESDAY BUT RAIN MAY BEGIN TO IMPACT THE MID-ATLANTIC  
STATES BY MONDAY MORNING AHEAD OF THE MAIN SYSTEM. BY TUESDAY, THE  
HEAVY PRECIPITATION REACHES NEW ENGLAND WHERE TEMPERATURES SHOULD  
BE COLD ENOUGH FOR SNOW. HEAVY SNOW ACCUMULATIONS ARE POSSIBLE  
ESPECIALLY ACROSS INTERIOR AND NORTHERN NEW ENGLAND WHERE AS MUCH  
AS A FOOT OR MORE IS FORECAST FOR NORTHERN NEW HAMPSHIRE AND  
MAINE. SNOW SHOWERS MAY CONTINUE ON THE BACKSIDE OF THE SYSTEM AS  
WELL WITH GENERALLY LIGHT ACCUMULATIONS POSSIBLE DOWNWIND OF THE  
GREAT LAKES AND INTO THE CENTRAL APPALACHIANS.  
 
AFTER A BRIEF BREAK THIS WEEKEND, ANOTHER ROUND OF HEAVY RAINFALL  
MOVES INTO THE PACIFIC NORTHWEST TONIGHT, EVENTUALLY EXTENDING  
SOUTHWARD INTO NORTHERN CALIFORNIA BY TUESDAY. EXCESSIVE  
RAINFALL/FLASH FLOODING IS POSSIBLE, ESPECIALLY NEAR THE COAST.  
ACCUMULATING SNOWFALL IS ALSO LIKELY IN THE HIGHER TERRAIN OF THE  
WASHINGTON CASCADES AND PARTS OF THE NORTHERN ROCKIES, WITH  
FREEZING RAIN POSSIBLE AT LOWER ELEVATIONS.  
 
AFTER A WARM SUNDAY, LOCATIONS FROM THE OHIO VALLEY TO THE EAST  
COAST WILL SEE PLUMMETING TEMPS FOLLOWING THE PASSAGE OF THE COLD  
FRONT. TEMPERATURES MONDAY AND TUESDAY COULD BE AS MUCH AS 15 TO  
30 DEGREES BELOW NORMAL, PARTICULARLY ACROSS THE MIDDLE  
MISSISSIPPI VALLEY AND PARTS OF THE OHIO VALLEY. OUT WEST,  
TEMPERATURES SHOULD BE NEAR OR ABOVE NORMAL THROUGH THE BEGINNING  
OF THE WEEK.  
 
SANTORELLI  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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