015  
FXUS01 KWBC 270806  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
300 AM EST WED DEC 27 2023  
 
VALID 12Z WED DEC 27 2023 - 12Z FRI DEC 29 2023  
 
...WINTER STORM ACROSS NORTHERN TO CENTRAL PLAINS CONTINUES TO  
GRADUALLY WIND DOWN...  
 
...A ROUND OF ENHANCED RAINFALL EXPECTED TO MOVE UP THE EAST COAST  
THROUGH TONIGHT...  
 
...UNSETTLED WEATHER LINGERS NEAR THE WEST COAST FOR THE NEXT  
COUPLE OF DAYS...  
 
THE WINTER STORM THAT PROMPTED WIDESPREAD BLIZZARD WARNINGS ACROSS  
THE NORTHERN AND CENTRAL PLAINS WILL CONTINUE TO GRADUALLY WIND  
DOWN TODAY. NEVERTHELESS, THE HUGE CIRCULATION IN CONNECTION WITH  
THIS ANOMALOUS LOW PRESSURE SYSTEM WILL TAKE SOME TIME TO SPIN  
DOWN. THE MAIN SWATH OF SNOW THAT IS STILL IMPACTING PORTIONS OF  
THE NORTHERN PLAINS TO THE CENTRAL HIGH PLAINS THIS MORNING IS  
FORECAST TO TAPER OFF TO LIGHT SNOW BY TONIGHT. AN AREA OF MIXED  
RAIN AND SNOW WILL ACCOMPANY THE WEAKENING LOW PRESSURE CENTER  
THROUGH MISSOURI TODAY. BY THURSDAY INTO FRIDAY MORNING, THE  
MIXED RAIN/SNOW WILL MOVE INTO THE MIDWEST AND THEN LINGER OR EVEN  
EXPAND A BIT OVER THE MIDWEST WHEN ANOTHER PIECE OF ENERGY FROM  
THE NORTH IS FORECAST TO INTERACT WITH THE LOW PRESSURE SYSTEM.  
 
MEANWHILE ON THE EASTERN PERIPHERY OF THE HUGE SYSTEM WHERE MILD  
ATLANTIC AIR ATTEMPTS TO OVERRUN THE COOL GROUND INLAND FROM THE  
ATLANTIC COAST, A ROUND OF RAIN IS FORECAST TO MOVE UP THE EAST  
COAST AS A LOW PRESSURE SYSTEM BEGINS TO DEVELOP TODAY INTO  
TONIGHT. SOME EMBEDDED THUNDERSTORMS ARE POSSIBLE OVER THE  
MID-ATLANTIC THIS MORNING. BY THURSDAY MORNING, THE LOW CENTER  
SHOULD BE PASSING JUST OFF THE SOUTHERN NEW ENGLAND COAST WHERE AN  
AREA OF ENHANCED RAINFALL IS FORECAST ACROSS NEW JERSEY TO LONG  
ISLAND. AS THE LOW MOVES OFF THE COAST LATER ON THURSDAY,  
RESIDUAL ENERGY FROM THE WEAKENING STORM OVER THE MIDWEST WILL  
KEEP A CHANCE OF SHOWERS ACROSS MUCH OFF THE NORTHEAST INTO FRIDAY  
MORNING, WITH LIGHT WINTRY MIX POSSIBLE OVER MAINE.  
 
ACROSS FLORIDA, A ROUND OF RAIN IS FORECAST TO PASS SOUTHERN  
FLORIDA AS AN UPPER-LEVEL DISTURBANCE MOVES ACROSS THE REGION.  
 
MEANWHILE, MOISTURE WELL AHEAD OF A COUPLE OF LARGE PACIFIC  
CYCLONES IS FORECAST TO KEEP WEATHER UNSETTLED ALONG THE WEST  
COAST FOR THE NEXT COUPLE OF DAYS. THE SYSTEM WILL PRODUCE RAIN  
AND HIGHEST ELEVATION SNOW OVER THE PACIFIC NORTHWEST AND  
CALIFORNIA WHILE MUCH OF THE REMINDER OF THE WESTERN U.S. WILL  
REMAIN DRY UNDER THE PROTECTION OF A STABLE HIGH PRESSURE SYSTEM.  
 
KONG  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 
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