514  
FXUS01 KWBC 021848  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
247 PM EDT TUE APR 02 2024  
 
VALID 00Z WED APR 03 2024 - 00Z FRI APR 05 2024  
 
...MAJOR EARLY SPRING STORM TO BRING NUMEROUS WEATHER HAZARDS FROM  
THE GREAT LAKES, ACROSS THE OHIO AND TENNESSEE VALLEYS, THE SOUTH,  
SOUTHEAST AND THE NORTHEAST...  
 
...HEAVY SNOWS LIKELY ACROSS MUCH OF WISCONSIN, THE U.P. OF  
MICHIGAN, NORTHERN NEW YORK STATE INTO CENTRAL TO NORTHERN NEW  
ENGLAND...  
 
...STRONG COLD FRONT TO BRING MUCH COOLER WEATHER WEDNESDAY FROM  
THE OHIO VALLEY INTO THE LOWER MISSISSIPPI VALLEY AND SOUTH...  
 
...A STRONG FRONT TO MOVE OFF THE PACIFIC, BRINGING MUCH COOLER  
TEMPS TO THE PACIFIC NORTHWEST WEDNESDAY, SOUTHWARD INTO ALL OF  
CALIFORNIA BY THURSDAY...  
 
AN ACTIVE EARLY SPRING WEATHER PATTERN ON BOTH COASTS OVER THE  
NEXT FEW DAYS RESULTING IN NUMEROUS WEATHER HAZARDS AND DROPPING  
TEMPERATURES. AN AREA OF LOW PRESSURE ACROSS THE MID-WEST TUESDAY  
AFTERNOON IS EXPECTED TO STRENGTHEN RAPIDLY TODAY INTO TUESDAY  
EVENING AS IT PUSHES NORTH INTO THE GREAT LAKES. THIS WILL BE  
FOLLOWED BY ANOTHER AREA OF LOW PRESSURE DEVELOPING ACROSS THE  
MID-ATLANTIC WEDNESDAY AND PUSHING NORTHEAST INTO EASTERN NEW  
ENGLAND ON THURSDAY. THE COMBINATION OF THESE TWO AREAS OF LOW  
PRESSURE WILL PRODUCE NUMEROUS WEATHER HAZARDS OVER THE NEXT 2  
DAYS. HEAVY SNOWS ARE FORECAST TO DEVELOP TO THE NORTH OF THE  
MID-WEST LOW THIS AFTERNOON AND CONTINUE INTO TUESDAY NIGHT AND  
WEDNESDAY ACROSS PORTIONS OF THE UPPER MISSISSIPPI VALLEY AND  
UPPER GREAT LAKES. SNOWFALL ACCUMULATION OF 6-12"+ EXPECTED  
ACROSS CENTRAL TO EASTERN WISCONSIN INTO THE CENTRAL TO EASTERN  
PORTIONS OF THE U.P. OF MICHIGAN. WINTER STORM WARNINGS ARE IN  
EFFECT ACROSS THESE AREAS, ALONG WITH BLIZZARD WARNINGS ACROSS THE  
CENTRAL U.P. OF MICHIGAN.  
 
HEAVY SPRING SNOWS ALSO LIKELY TO DEVELOP WEDNESDAY AFTERNOON  
ACROSS NORTHERN NEW YORK STATE AND SPREAD INTO CENTRAL TO NORTHERN  
NEW ENGLAND AS THE SECOND AREA OF LOW PRESSURE DEEPENS ALONG THE  
MID-ATLANTIC AND NEW ENGLAND COASTS. SNOWFALL TOTALS OF 6-18"  
EXPECTED ACROSS NORTHERN NEW YORK STATE, MUCH OF VERMONT, NEW  
HAMPSHIRE, MUCH OF MAINE AND PORTIONS OF NORTHERN MASSACHUSETTS.  
 
TO THE SOUTH OF THE AREAS OF HEAVY SNOWS, HEAVY RAINS ARE EXPECTED  
ALONG AND AHEAD OF THE STRONG COLD FRONT FORECAST TO SWEEP  
EASTWARD TONIGHT THROUGH THE OHIO AND TENNESSEE VALLEYS AND ACROSS  
MUCH OF THE EASTERN SEABOARD FROM THE MID-ATLANTIC TO FLORIDA  
DURING WEDNESDAY. THE HEAVIEST RAIN TOTALS ARE EXPECTED FROM THE  
UPPER OHIO VALLEY INTO THE CENTRAL APPALACHIANS AND INTO THE  
MID-ATLANTIC. WIDESPREAD FLOOD WATCHES ARE CURRENTLY IN EFFECT  
ACROSS THESE AREAS. IN ADDITION TO THE HEAVY RAIN AND FLOODING  
THREAT, SEVERE WEATHER IS ALSO POSSIBLE ACROSS PORTIONS OF THE  
OHIO AND TENNESSEE VALLEYS AND MUCH OF THE SOUTH TUESDAY AFTERNOON  
AND TUESDAY NIGHT, AND INTO THE SOUTHEASTERN U.S. ON WEDNESDAY.  
 
MUCH COOLER TEMPERATURES ARE EXPECTED IN THE WAKE OF THIS STRONG  
FRONT AS IT PUSHES EASTWARD. MUCH ABOVE AVERAGE TEMPERATURES ARE  
EXPECTED TO STRETCH FROM THE LOWER MISSISSIPPI VALLEY, EASTWARD  
INTO THE OHIO/TENNESSEE VALLEYS, SOUTH AND SOUTHEAST ON TUESDAY,  
BEING REPLACED BY BELOW AVERAGE TEMPERATURES WEDNESDAY AND  
THURSDAY BEHIND THE STRONG COLD FRONT.  
 
A STRONG COLD FRONT ALSO EXPECTED TO PUSH INLAND ALONG THE WEST  
COAST. THIS WILL BEGIN ACROSS THE PACIFIC NORTHWEST TUESDAY  
EVENING/NIGHT AND THEN SPREAD SOUTHWARD THROUGH ALL OF CALIFORNIA  
AND THE WESTERN GREAT BASIN ON WEDNESDAY. MUCH ABOVE AVERAGE  
TEMPERATURES ALONG ALL OF THE WEST COAST TUESDAY WILL BE REPLACED  
BY BELOW AVERAGE TEMPERATURES SPREADING SOUTHWARD WEDNESDAY AND  
THURSDAY BEHIND THE STRONG COLD FRONT. IN ADDITION, PRECIPITATION  
WILL BE DEVELOPING ACROSS LARGE PORTIONS OF THE WEST COAST, INLAND  
INTO THE NORTHERN ROCKIES AND GREAT BASIN OVER THE NEXT TWO DAYS  
ASSOCIATED WITH THE ABOVE MENTIONED FRONT. OVERALL PRECIP TOTALS  
ARE NOT EXPECTED TO BE AS HEAVY AS PAST EVENTS ACROSS PORTIONS OF  
THE WEST, BUT ADDITIONAL HEAVY SNOW AMOUNTS ARE POSSIBLE ACROSS  
PORTIONS OF THE CENTRAL SIERRA.  
 
ORAVEC  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 
 
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