032  
FXUS01 KWBC 240810  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
309 AM EST THU JAN 24 2019  
 
VALID 12Z THU JAN 24 2019 - 12Z SAT JAN 26 2019  
 
...RAIN CHANGING TO SNOW TODAY AS AN ACTIVE COLD FRONT MOVES  
ACROSS THE EASTERN SEABOARD WITH SEVERE WEATHER POSSIBLE IN THE  
SOUTHEAST...  
   
..SNOW OVER THE NORTHERN ROCKIES WILL GRADUALLY TAPER OFF
 
 
...COLD WEATHER EXPECTED TO SPREAD ACROSS THE PLAINS INTO THE  
SOUTHEAST THROUGH THE END OF THE WEEK...  
 
A MILD AIR STREAM FROM THE SOUTH HAS QUICKLY BROUGHT ABOVE NORMAL  
TEMPERATURES UP THE EAST COAST AHEAD OF AN ACTIVE COLD FRONT. A  
WIDE SWATH OF RAIN WILL ACCOMPANY THIS COLD FRONT AS IT SWEEPS  
ACROSS THE ENTIRE EASTERN SEABOARD TODAY. THERE IS SOME POTENTIAL  
FOR HEAVY RAIN TO CAUSE LOCALIZED FLOODING ISSUES OVER SOUTHERN  
NEW ENGLAND. THE EASTERN GULF COAST WILL SEE THE BEST CHANCE OF  
STRONG TO SEVERE THUNDERSTORMS THIS MORNING BEFORE THE COLD FRONT  
MOVES OFF INTO THE ATLANTIC. COLD AIR BEHIND THE FRONT IS  
EXPECTED TO CHANGE THE RAIN TO A PERIOD OF SNOW AS IT SPREADS UP  
THE SPINE OF THE APPALACHIANS TODAY AND ACROSS INTERIOR NEW  
ENGLAND TONIGHT.  
 
OVER THE NORTHERN PLAINS, THE NEXT SURGE OF ARCTIC AIR FROM  
CENTRAL CANADA HAS ARRIVED. A CLIPPER LOW PRESSURE SYSTEM  
DEVELOPING ALONG AN ARCTIC FRONT IS BRINGING A BRIEF PERIOD OF  
SNOW SQUALLS ACROSS THE UPPER MIDWEST. THE SNOW IS EXPECTED TO  
MOVE INTO THE GREAT LAKES TONIGHT AND LINGERS INTO FRIDAY OVER THE  
LAKE-EFFECT SNOW BELTS. ARCTIC AIR IS FORECAST TO LINGER OVER THE  
UPPER MIDWEST INTO THE WEEKEND WHERE TEMPERATURES OF MORE THAN 20  
DEGREES BELOW NORMAL CAN BE EXPECTED. MEANWHILE, A WARMING TREND  
WILL BEGIN TO SET IN ACROSS THE NORTHERN HIGH PLAINS AS CHINOOK  
WINDS DEVELOP BEHIND AN ARCTIC HIGH PRESSURE SYSTEM. THIS ARCTIC  
HIGH IS FORECAST TO PLUNGE SOUTHEASTWARD THROUGH THE PLAINS  
THROUGH FRIDAY AND INTO THE SOUTHEAST ON SATURDAY, BRINGING COLD  
CONDITIONS TO MUCH OF THE DEEP SOUTH FOR THE WEEKEND.  
 
MEANWHILE, SNOW ACROSS THE NORTHERN ROCKIES IS EXPECTED TO  
GRADUALLY TAPER OFF INTO SCATTERED LIGHT SNOW BY TONIGHT. IT  
APPEARS THAT MORE QUIET WEATHER IS RETURNING TO MUCH OF THE  
WESTERN U.S. AS WE HEAD INTO THE WEEKEND.  
 
KONG  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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