183  
FXUS01 KWBC 301932  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
231 PM EST THU JAN 30 2025  
 
VALID 00Z FRI JAN 31 2025 - 00Z SUN FEB 02 2025  
 
...PRECIPITATION RETURNS TO THE WEST COAST, SIGNALING THE  
BEGINNING OF A WET PATTERN...  
 
...MUCH NEEDED RAINS SPREAD INTO THE UPPER TENNESSEE VALLEY,  
SOUTHERN APPALACHIANS, MID-ATLANTIC AND SOUTHERN NEW ENGLAND...  
 
...ABOVE AVERAGE TEMPERATURES WILL STRETCH ACROSS MUCH OF THE  
LOWER 48 HEADING INTO THE WEEKEND...  
 
AFTER SEVERAL WEEKS OF NO PRECIPITATION ALONG LARGE PORTIONS OF  
THE WEST COAST, A MORE ACTIVE WEST COAST WEATHER PATTERN IS SET TO  
BEGIN THURSDAY EVENING/NIGHT AS PRECIPITATION SPREADS INLAND OFF  
THE PACIFIC INTO THE PACIFIC NORTHWEST AND NORTHERN CALIFORNIA.  
RAINS AND HIGHER ELEVATION SNOWS WILL CONTINUE INTO FRIDAY AND  
SATURDAY FROM NORTHERN CALIFORNIA INTO THE PACIFIC NORTHWEST FROM  
THE CASCADES WESTWARD TO THE COAST. THE RECENT DRY WEST COAST  
WEATHER HAS LEFT THE REGION WELL BELOW AVERAGE THIS MONTH WITH  
PRECIPITATION. THIS WILL REDUCE THE THREAT OF ANY FLOODING FROM  
THE EXPECTED HEAVY RAINS OVER THE NEXT FEW DAYS. HOWEVER, THIS IS  
THE BEGINNING OF AN OVERALL WETTER WEATHER PATTERN FOR THE WEST  
COAST THAT WILL BRING ADDITIONAL ROUNDS OF POTENTIALLY HEAVY  
PRECIPITATION INTO NORTHERN CALIFORNIA FOR NEXT WEEK, AND RESULT  
IN INCREASING FLOOD THREATS WITH TIME.  
 
ACTIVE WEATHER CURRENTLY ACROSS PORTIONS OF THE SOUTHERN PLAINS TO  
LOWER MISSISSIPPI VALLEY REGION WILL BE SPREADING NORTHEASTWARD  
THURSDAY NIGHT INTO FRIDAY THROUGH THE OHIO AND TENNESSEE VALLEYS,  
ACROSS THE SOUTHERN TO CENTRAL APPALACHIANS, INTO THE MID ATLANTIC  
AND SOUTHERN NEW ENGLAND AS A STORM SYSTEM PUSHES NORTHEASTWARD  
ACROSS THESE AREAS OVER THE NEXT TWO DAYS. MUCH OF THE EASTERN  
U.S. HAS SEEN BELOW AVERAGE PRECIPITATION RECENTLY, RESULTING IN  
AREAS FROM THE UPPER TENNESSEE VALLEY/SOUTHERN APPALACHIANS INTO  
THE MID-ATLANTIC AND SOUTHERN NEW ENGLAND EXPERIENCING MODERATE TO  
SEVERE DROUGHT CONDITIONS. THE EXPECTED RAINFALL TOTALS OF .50 TO  
1+ INCHES, WHILE ONLY PUTTING A DENT IN THE DROUGHT, WILL BE MUCH  
WELCOMED. THE HEAVIEST RAINFALL TOTALS EXPECTED ACROSS THE CENTRAL  
APPALACHIANS FROM EASTERN KENTUCKY INTO WEST VIRGINIA AND FAR  
SOUTHWEST PENNSYLVANIA. MELTING SNOWS AND SATURATED SOILS MAY  
LEAD TO ISOLATED FLOODING ISSUES ACROSS THESE REGIONS, WITH FLOOD  
WATCHES CURRENTLY IN EFFECT. ISOLATED FLOODING ISSUES ALSO  
POSSIBLE OVER PORTIONS OF THE LOWER MISSOURI AND MID-MISSISSIPPI  
VALLEY REGIONS FROM NORTHEAST KANSAS, ACROSS NORTHERN MISSOURI,  
SOUTHEAST IOWA AND NORTHERN ILLINOIS FROM RAIN FALLING ON STILL  
FROZEN GROUND. THIS WILL REDUCE THE AMOUNT OF RAIN ABSORBED INTO  
THE GROUND, ENHANCING RUNOFF INTO STREAMS AND LEADING TO ISOLATED  
FLOODING.  
 
ABOVE AVERAGE TEMPERATURES EXPECTED ACROSS MUCH OF THE LOWER 48  
FOR THE END OF THE WORKWEEK AND THE WEEKEND. THE EXCEPTION WILL  
BE ACROSS THE GREAT LAKES AND NEW ENGLAND ON SATURDAY WHEN  
TEMPERATURES ARE EXPECTED TO BE BELOW AVERAGE IN THE WAKE OF A  
STRONG COLD FRONT. ELSEWHERE ACROSS THE LOWER 48, HIGH  
TEMPERATURES WILL BE ABOVE AVERAGE OVER THE NEXT FEW DAYS. HIGH  
TEMPERATURES EXPECTED TO BE 10 TO 15 DEGREES ABOVE AVERAGE FRIDAY  
ACROSS NEARLY ALL OF THE CENTRAL TO EASTERN U.S. BY SATURDAY,  
HIGH TEMPERATURES WILL REACH 15 TO 20 DEGREES ABOVE AVERAGE ACROSS  
ALL OF THE PLAINS AND 5 TO 10+ DEGREES ABOVE AVERAGE TO THE  
SOUTHEAST OF THIS INTO THE SOUTHEAST U.S., AND WESTWARD INTO THE  
GREAT BASIN.  
 
ORAVEC  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 
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