756  
FXUS01 KWBC 100803  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
302 AM EST WED JAN 10 2018  
 
VALID 12Z WED JAN 10 2018 - 12Z FRI JAN 12 2018  
 
...WINTER STORM WILL UNFOLD ACROSS THE PLAINS AND MOVE EASTWARD  
INTO THE OHIO VALLEY...  
 
PRECIPITATION WILL CONTINUE ACROSS THE INTERMOUNTAIN WEST THROUGH  
MOST OF WEDNESDAY--FALLING AS RAIN AND HIGHER ELEVATION SNOW. THIS  
ACTIVITY WILL SPREAD ACROSS THE NORTHERN AND PORTIONS OF THE  
CENTRAL PLAINS BY WEDNESDAY NIGHT AND EARLY THURSDAY MORNING.  
MEANWHILE, COLD AIR FROM THE ARCTIC HIGH PRESSURE WILL SPILL INTO  
THE CENTRAL U.S.--ALLOWING THIS PRECIPITATION TO FALL AS SNOW. AS  
THE FRONTAL SYSTEM ASSOCIATED WITH THIS WINTER STORM PROGRESSES  
EASTWARD, THE BULK OF PRECIPITATION WILL ALSO FOLLOW. HOWEVER, BY  
LATE WEDNESDAY NIGHT AND INTO EARLY THURSDAY MORNING, AREAS NEAR  
THE RAIN/SNOW LINE WILL BEGIN TO SEE WINTRY MIX ESPECIALLY IN THE  
MIDDLE MISSISSIPPI VALLEY. THIS WINTRY MIX WILL INCREASE AS IT  
MOVES INTO THE OHIO VALLEY ON FRIDAY. THE LOWER MISSISSIPPI VALLEY  
AND SOUTHEAST CAN EXPECT RAINFALL ON THURSDAY NIGHT/FRIDAY  
MORNING. SNOW WILL MOVE FROM THE NORTHERN/CENTRAL PLAINS ON  
WEDNESDAY INTO THE MIDDLE MISSISSIPPI VALLEY AND UPPER MIDWEST BY  
THURSDAY. BY FRIDAY MORNING, SNOW WILL BE MAINLY CONFINED TO THE  
GREAT LAKES REGION ON FRIDAY MORNING BEFORE IT INCREASES IN THE  
OHIO VALLEY--BEYOND THE SHORT TERM PERIOD. FOR ALL INFORMATION  
REGARDING THIS WINTER STORM, PLEASE CONSULT WPC'S WINTER WEATHER  
PRODUCTS.  
 
MOST OF THE EASTERN HALF OF THE U.S. WILL EXPERIENCE WARMER THAN  
NORMAL HIGH TEMPERATURES ON WEDNESDAY--ESPECIALLY IN THE PLAINS.  
HOWEVER, ONCE THE ARCTIC HIGH PRESSURE NUDGES INTO THE NORTHERN  
PLAINS ON THURSDAY, MUCH COLDER CONDITIONS WILL REINTRODUCE  
THEMSELVES IN THE PLAINS--WHILE THE WARMER TEMPERATURES CONTINUE  
ACROSS THE GREAT LAKES AND NORTHEAST. MOST OF THE EAST COAST WILL  
EXPERIENCE WARM TEMPERATURES FOR THIS TIME OF YEAR ON  
FRIDAY--WHILE THE CENTRAL PORTION OF THE COUNTRY WILL BE COLD AS  
THE WINTER STORM SWEEPS ACROSS THOSE REGIONS.  
 
REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HPC Page Main Text Page