160  
FXUS01 KWBC 240800  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
259 AM EST SAT NOV 24 2018  
 
VALID 12Z SAT NOV 24 2018 - 12Z MON NOV 26 2018  
 
...WINTER STORM WILL BRING HEAVY SNOW AND STRONG WINDS FROM THE  
CENTRAL PLAINS INTO THE GREAT LAKES BEGINNING SATURDAY NIGHT...  
 
...HEAVY SNOWFALL LIKELY IN THE HIGHER TERRAIN OF THE  
INTERMOUNTAIN WEST AND THE ROCKIES...  
 
...HEAVY RAINFALL WILL IMPACT THE MID-ATLANTIC TO THE NORTHEAST ON  
SATURDAY, WITH LIGHT ICE ACCUMULATIONS POSSIBLE IN THE  
APPALACHIANS...  
 
ON SATURDAY NIGHT AND INTO SUNDAY MORNING, A CLOSED UPPER LEVEL  
LOW WILL SWING ACROSS THE PLAINS AND INTO THE MISSISSIPPI VALLEY.  
AT THE SURFACE, A SURFACE LOW WILL TRACK FROM THE ROCKIES, MOVES  
ACROSS THE PLAINS ON SATURDAY EVENING AND ENTERS THE MIDDLE  
MISSISSIPPI VALLEY BY SUNDAY MORNING. THIS WILL LEAD TO A WINTER  
STORM LIKELY TO DEVELOP SATURDAY NIGHT AND QUICKLY STRENGTHEN BY  
SUNDAY OVER THE CENTRAL U.S. SIGNIFICANT SNOWFALL IS POSSIBLE FROM  
THE CENTRAL PLAINS TO THE MISSOURI RIVER VALLEY ON SATURDAY NIGHT  
AND INTO SUNDAY MORNING. BY SUNDAY AND INTO MONDAY, THE  
SIGNIFICANT SNOWFALL WILL SHIFT TO THE GREAT LAKES. THE  
COMBINATION OF HEAVY SNOW AND STRONG WINDS MAY PRODUCE BLIZZARD  
CONDITIONS ESPECIALLY IN THE HARDEST-HIT AREAS. FURTHERMORE,  
DANGEROUS TRAVEL CONDITIONS CAUSED BY HEAVY SNOW AND REDUCED  
VISIBILITY ARE EXPECTED TO END THE HOLIDAY WEEKEND.  
 
THE UPPER LEVEL SYSTEM THAT WILL BRING HEAVY SNOW TO THE CENTRAL  
U.S. IS CAUSING THE HEAVY RAIN AND HIGHER ELEVATION SNOW ACROSS  
THE WEST COAST. AS THAT UPPER LEVEL SYSTEM MOVES FARTHER EASTWARD,  
THE PRECIPITATION WILL COME TO AN END FOR CALIFORNIA AND THE  
PACIFIC NORTHWEST--SHIFTING TOWARD THE INTERMOUNTAIN WEST TODAY.  
EXPECT HEAVY SNOW ACROSS PARTS OF THE NORTHERN AND CENTRAL ROCKIES  
TODAY. WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN  
EFFECT ACROSS THESE REGIONS. AS THE WINTER STORM DEVELOPS ACROSS  
THE PLAINS, THE SNOW WILL COME TO AN END FOR THE ROCKIES LATE  
SUNDAY NIGHT AND INTO EARLY SUNDAY MORNING.  
 
SHOWERS WILL BEGIN TO SPREAD ACROSS THE MID-ATLANTIC AND NORTHEAST  
TODAY, COMING TO AN END FOR THE TENNESSEE VALLEY AND SOUTHEAST. AS  
PRECIPITATION INCREASES THIS MORNING, THERE WILL BE A CHANCE OF  
LIGHT FREEZING RAIN ACCUMULATIONS ACROSS THE CENTRAL APPALACHIANS  
NORTHWARD INTO THE NORTHEAST. HEAVY RAIN WILL CONTINUE ACROSS THE  
MID-ATLANTIC THIS EVENING.  
 
REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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