442  
FXUS01 KWBC 020800  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
359 AM EDT TUE APR 02 2019  
 
VALID 12Z TUE APR 02 2019 - 12Z THU APR 04 2019  
 
...A STRENGTHENING LOW WILL CREATE RAIN AND EVEN SNOW IN THE  
EASTERN SEABOARD ON TUESDAY INTO WEDNESDAY...  
 
...RAIN AND SNOW WILL SPREAD FROM THE NORTHWEST AND ROCKIES ON  
TUESDAY INTO THE PLAINS BY WEDNESDAY...  
 
...A COUPLE OF ROUNDS OF LIGHT PRECIPITATION ARE POSSIBLE IN  
FLOODED AREAS OF THE UPPER/MIDDLE MISSISSIPPI VALLEY...  
 
...COLDER THAN AVERAGE FOR THE SOUTHERN PLAINS TO THE NORTHEAST ON  
TUESDAY, WITH RECORD LOWS POSSIBLE...  
 
A SURFACE LOW PRESSURE SYSTEM IS DEVELOPING JUST EAST OF FLORIDA,  
AND IS FORECAST TO STRENGTHEN RAPIDLY AND TRACK NORTHWARD JUST  
EAST OF THE ATLANTIC COASTLINE. THIS LOW WILL SPREAD RAIN TO  
FLORIDA AND THE CAROLINAS TODAY AND INTO THE MID-ATLANTIC THIS  
EVENING, AND THE COASTAL NORTHEAST BY TONIGHT. THOUGH THE HEAVIEST  
RAINFALL TOTALS ARE EXPECTED TO REMAIN OVER WATER, MODERATE TO  
HEAVY RAINFALL IS POSSIBLE ALONG THE ATLANTIC COAST. ADDITIONALLY,  
LATE SEASON LIGHT SNOW IS POSSIBLE IN THE SOUTHERN APPALACHIANS  
AND INTO THE PIEDMONT OF THE CAROLINAS THIS MORNING, AND SNOW OF 1  
TO 3 INCHES IS FORECAST FOR INTERIOR NEW ENGLAND. OVER WATER,  
HURRICANE FORCE WIND SPEEDS ARE POSSIBLE WITH THIS STRONG LOW.  
 
PRECIPITATION WILL CONTINUE SPREADING ACROSS THE WESTERN U.S. ON  
TUESDAY AS A LOW MOVES IN, WITH RAIN IN LOWER ELEVATIONS AND SNOW  
IN HIGHER ELEVATIONS. ADDITIONAL SNOW AMOUNTS OF 3 TO 6 INCHES ARE  
POSSIBLE IN THE SIERRA NEVADA, WASATCH, AND WIND RIVER  
MOUNTAINS/TETONS. THE CENTRAL ROCKIES COULD SEE 6 TO 10 INCHES OF  
SNOW IN THE HIGHEST PEAKS. RAIN AND LIGHT SNOW IS EXPECTED TO MOVE  
INTO THE CENTRAL/NORTHERN PLAINS ON TUESDAY NIGHT, AND EASTWARD  
INTO THE MIDDLE MISSISSIPPI VALLEY ON WEDNESDAY. THIS IS AFTER  
SOME LIGHT RAIN AND SNOW COULD FALL ACROSS THE UPPER MISSISSIPPI  
VALLEY AND GREAT LAKES REGION ON TUESDAY. THOUGH PRECIPITATION IS  
FORECAST TO BE UNDER AN INCH, ANY PRECIPITATION COULD EXACERBATE  
ONGOING FLOODING FROM PRECIPITATION AND SNOWMELT IN THESE AREAS.  
FARTHER SOUTH, THUNDERSTORMS ARE FORECAST ACROSS THE  
SOUTHERN/CENTRAL PLAINS AND INTO THE LOWER/MIDDLE MISSISSIPPI  
VALLEY ON WEDNESDAY AND INTO THURSDAY, WITH SEVERE STORMS  
POSSIBLE.  
 
TEMPERATURE-WISE, COOLER THAN NORMAL CONDITIONS ARE EXPECTED FROM  
THE SOUTHERN PLAINS TO THE NORTHEAST ON TUESDAY. A FEW RECORD LOWS  
ARE POSSIBLE ACROSS TEXAS AND THE LOWER MISSISSIPPI VALLEY, AS  
WELL AS IN THE MID-ATLANTIC TO NORTHEAST. FREEZE WARNINGS ARE IN  
EFFECT FOR PORTIONS OF KENTUCKY AND WEST VIRGINIA, AND A SMALL  
PART OF ARKANSAS ON TUESDAY MORNING. COLDER THAN AVERAGE HIGHS ARE  
LIKELY ON WEDNESDAY ACROSS THE CENTRAL PLAINS, SUPPORTING SNOW  
THERE. THE WEST WILL BE WARM, PARTICULARLY IN TERMS OF LOW  
TEMPERATURES--SOME RECORD HIGH MINIMUM TEMPERATURES ARE POSSIBLE  
ON TUESDAY AND WEDNESDAY MORNINGS THROUGHOUT THE WEST.  
 
TATE  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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