961  
FXUS01 KWBC 080754  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
253 AM EST SAT DEC 8 2018  
 
VALID 12Z SAT DEC 8 2018 - 12Z MON DEC 10 2018  
 
...WINTER STORM TO BRING ICE AND SNOW FROM THE SOUTHERN PLAINS TO  
THE APPALACHIANS, AND HEAVY RAIN FROM EASTERN TEXAS TO SOUTH  
CAROLINA...  
 
A STRONG STORM SYSTEM CROSSING THE GULF COAST REGION EARLY  
SATURDAY MORNING WILL TAKE A SOUTHERLY TRACK ACROSS THE DEEP SOUTH  
AND THEN TO THE SOUTHEAST U.S. COAST THROUGH THE WEEKEND. IN THE  
WARM SECTOR OF THE SURFACE LOW, HEAVY RAIN IS FORECAST FROM  
SOUTHEAST TEXAS TO SOUTH CAROLINA IN RESPONSE TO A DEEP SURGE OF  
MOISTURE FROM THE GULF OF MEXICO. THE WEATHER PREDICTION CENTER  
CURRENTLY HAS A SLIGHT RISK OF EXCESSIVE RAINFALL FOR SATURDAY AND  
SATURDAY NIGHT FROM LOUISIANA TO GEORGIA, WITH 1 TO 3 INCHES OF  
RAINFALL EXPECTED. THE RAINFALL RATES ARE EXPECTED TO BE HIGH AT  
TIMES, INCREASING THE THREAT OF FLOODING. FLASH FLOOD WATCHES ARE  
ALSO IN EFFECT FOR PARTS OF THIS REGION.  
 
AS THE SURFACE LOW TRACKS EASTWARD ROUGHLY ALONG THE FLORIDA GULF  
COAST AND THEN THE SOUTHEAST U.S. COAST THROUGH LATE SUNDAY, A  
SWATH OF ACCUMULATING SNOW AND ICE IS EXPECTED TO EXTEND FROM  
EASTERN TENNESSEE TO SOUTH-CENTRAL VIRGINIA. WINTER STORM  
WARNINGS ARE NOW IN EFFECT FROM NORTHWEST SOUTH CAROLINA TO  
SOUTHWEST VIRGINIA. SNOWFALL AMOUNTS IN THESE AREAS COULD REACH A  
FOOT OR MORE, PARTICULARLY FOR THE MOUNTAINS OF WESTERN NORTH  
CAROLINA. TRAVEL WILL LIKELY BE SEVERELY AFFECTED ACROSS MUCH OF  
THESE AREAS, AND SOME POWER OUTAGES ARE ALSO POSSIBLE. MIXED  
PRECIPITATION AND WET SNOW ACROSS THE PIEDMONT AREAS OF THE  
CAROLINAS AND SOUTHERN VIRGINIA WILL TEND TO LOWER OVERALL  
ACCUMULATIONS THERE, BUT MAY STILL DISRUPT TRAVEL. WINTER WEATHER  
ADVISORIES ARE ALSO IN EFFECT FROM EASTERN NEW MEXICO TO THE  
MEMPHIS AREA WITH SOME LIGHT TO MODERATE SNOW AND ICE  
ACCUMULATIONS POSSIBLE, AND WINTER STORM WARNINGS FOR THE OZARKS  
OF NORTHERN ARKANSAS.  
 
ELSEWHERE ACROSS THE NATION, SOME LAKE EFFECT SNOW IS LIKELY  
ACROSS PARTS OF MICHIGAN AND NEW YORK ON SATURDAY AS COLD  
NORTHWESTERLY FLOW CROSSES THE WARMER LAKE WATERS. SHOWERS AND  
MOUNTAIN SNOW RETURNS TO WESTERN WASHINGTON AND OREGON ON SATURDAY  
AS A COLD FRONT APPROACHES FROM THE EASTERN PACIFIC. COLDER THAN  
NORMAL TEMPERATURES ARE EXPECTED TO PERSIST ACROSS MUCH OF THE  
CENTRAL AND NORTHERN U.S. THROUGH THE WEEKEND WITH A LARGE  
CANADIAN SURFACE HIGH IN PLACE.  
 
D. HAMRICK  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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