948  
FXUS01 KWBC 250714  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
213 AM EST FRI JAN 25 2019  
 
VALID 12Z FRI JAN 25 2019 - 12Z SUN JAN 27 2019  
   
..HEAVY LAKE EFFECT SNOW DOWNWIND FROM THE GREAT LAKES
 
 
...TEMPERATURES WILL BE 10 TO 25 DEGREES BELOW AVERAGE OVER THE  
UPPER MIDWEST...  
 
A DEEP UPPER-LEVEL TROUGH WILL BE OVER THE EASTERN TWO/THIRDS OF  
THE COUNTRY THAT WILL REMAIN OVER THE AREA THROUGH SUNDAY. ONE  
AREA OF COLD HIGH PRESSURE FOLLOWED BY ANOTHER WILL MOVE OUT OF  
CENTRAL CANADA SOUTHEASTWARD TO THE OHIO VALLEY SATURDAY INTO  
SUNDAY. UPPER-LEVEL ENERGY EMBEDDED IN THE UPPER-LEVEL TROUGH  
WILL AID IN PRODUCING LAKE EFFECT SNOW AND UPSLOPE FLOW SNOW WILL  
DEVELOP DOWNWIND FROM THE GREAT LAKES INTO THE CENTRAL  
APPALACHIANS THROUGH SUNDAY. IN ADDITION, AN AREA OF LOW PRESSURE  
OVER THE NORTHERN PLAINS WILL MOVE SOUTHEASTWARD TO THE OHIO  
VALLEY BY SATURDAY NIGHT INTO SUNDAY. THE LOW WILL AID IN  
PRODUCING LIGHT SNOW OVER PARTS OF THE NORTHERN PLAINS THAT WILL  
EXPAND SOUTHEASTWARD INTO PARTS OF THE MIDDLE MISSISSIPPI VALLEY  
BY FRIDAY EVENING AND INTO PARTS OF THE OHIO VALLEY BY SATURDAY  
EVENING.  
 
MEANWHILE, MOISTURE FROM THE WESTERN GULF OF MEXICO WILL SLOWLY  
MOVE NORTHWARD INTO TEXAS THAT WILL START TO PRODUCE RAIN OVER THE  
WESTERN GULF COAST SATURDAY MORNING THAT WILL END BY SUNDAY  
MORNING.  
 
ZIEGENFELDER  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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