521   
FXUS01 KWBC 301811  
PMDSPD  
  
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
110 PM EST MON DEC 30 2024  
  
VALID 00Z TUE DEC 31 2024 - 00Z THU JAN 02 2025  
   
..COOLING TREND SPREADS FROM WEST TO EAST THIS WEEK.  
  
...FIRE WEATHER CONCERNS FOR PORTIONS OF SOUTHERN CALIFORNIA  
THROUGH MID-WEEK...  
  
SYSTEMS MOVING BY THE NORTHERN INTERMOUNTAIN WEST BRING THE  
PROMISE OF SNOWY PERIODS IN AND NEAR WESTERN MONTANA, IDAHO, AND  
WYOMING THROUGH WEDNESDAY.  THE FIRST OF THOSE SYSTEMS MOVES OUT  
INTO THE MIDWEST, OHIO VALLEY, AND NORTHEAST, BRINGING RAIN AND  
THUNDERSTORMS NEAR AND TO THE CYCLONE'S EAST, WITH THUNDERSTORMS  
MOST LIKELY ACROSS PORTIONS OF THE EASTERN SHORE AND NEW JERSEY ON  
THE AFTERNOON AND EARLY EVENING OF NEW YEAR'S EVE.  AS THE CYCLONE  
MOVES THROUGH THE NORTHEAST ON WEDNESDAY, BOTH LAKE EFFECT AND  
LAKE ENHANCED SNOWS WILL SPREAD THROUGH THE GREAT LAKES AND INTO  
THE NORTHERN AND CENTRAL APPALACHIANS.  SOME MIXED PRECIPITATION  
IS EXPECTED ACROSS CENTRAL NEW ENGLAND.  
  
A SYSTEM ARRIVING FROM THE PLAINS SYSTEM WILL PROMOTE SNOW SHOWERS  
FOR THE BROADER GREAT LAKES REGION ON TUESDAY.  A COOLING TREND  
STARTED IN THE WEST EXPANDS EAST THROUGH THE REST OF THE COUNTRY  
OVER THE NEXT COUPLE OF DAYS.  BUILDING HIGH PRESSURE ACROSS THE  
GREAT BASIN IS EXPECTED TO INCREASE WINDS ACROSS SOUTHERN  
CALIFORNIA OVER THE NEXT COUPLE OF DAYS, PROMOTING AN INCREASED  
FIRE WEATHER RISK WHICH COULD BECOME CRITICAL THROUGH MID-WEEK.   
WIND ADVISORIES, A RED FLAG WARNING, AND A FIRE WEATHER WATCH HAVE  
ALL BEEN POSTED FOR THE AREA.   
  
ROTH  
  
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
  
 
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