969  
FXUS01 KWBC 011650  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
1249 PM EDT MON APR 01 2019  
 
VALID 00Z TUE APR 02 2019 - 00Z THU APR 04 2019  
 
...RAIN/MOUNTAIN SNOW SPREADS ACROSS THE NORTHWEST AND INTO THE  
NORTHERN/CENTRAL ROCKIES...  
 
...MORE PRECIPITATION EXPECTED FOR FLOODED AREAS OF THE UPPER AND  
MIDDLE MISSISSIPPI VALLEYS...  
 
...RECORD COLD HIGH TEMPERATURES POSSIBLE ACROSS TEXAS & THE LOWER  
MISSISSIPPI VALLEY THIS AFTERNOON...  
 
...RECORD COLD HIGH TEMPERATURES POSSIBLE FOR THE CAROLINAS  
TUESDAY AFTERNOON...  
 
ON MONDAY, A LOW PRESSURE SYSTEM WILL SLOWLY APPROACH THE PACIFIC  
NORTHWEST, INCREASING MOISTURE AND THE CHANCE FOR PRECIPITATION  
FROM THE NORTHWEST INTO NORTHERN CALIFORNIA. BY TUESDAY, THE LOW  
TRAVERSING THE INTERMOUNTAIN WEST IS EXPECTED TO LEAD TO SNOW INTO  
THE NORTHERN AND CENTRAL ROCKIES, AND SNOW AND RAIN SHOULD MOVE  
INTO THE PLAINS ON WEDNESDAY. THE HIGHEST SNOWFALL TOTALS ARE  
EXPECTED IN HIGHER ELEVATIONS--HEAVY SNOWS OF 8 TO 12 INCHES ARE  
POSSIBLE IN THE SIERRA NEVADA, WHILE 4 TO 8 INCHES OF SNOW IS  
FORECAST FOR THE WIND RIVER MOUNTAINS/TETONS.  
 
LIGHT RAIN AND SNOW SHOWERS ARE POSSIBLE ON MONDAY ACROSS THE  
NORTHERN ROCKIES TO NORTHERN PLAINS NEAR A FRONT TRAILING FROM A  
WEAK AREA OF LOW PRESSURE FADING AS IT CROSSES THE GREAT LAKES.  
PRECIPITATION WILL SPREAD INTO THE UPPER/MIDDLE MISSISSIPPI VALLEY  
AND INTO THE UPPER GREAT LAKES REGION BY MONDAY NIGHT AND TUESDAY  
AS THE LOW APPROACHES. A SWATH OF 1 TO 3 INCHES OF SNOW IS  
POSSIBLE WITH THIS SYSTEM. THIS PRECIPITATION WILL NOT BE WELCOME  
AS NEARLY THE ENTIRE LENGTH OF THE MISSISSIPPI RIVER REMAINS IN  
FLOOD DUE TO A COMBINATION OF PRECIPITATION AND SNOW MELT.  
 
A QUASI-STATIONARY FRONT WILL LINGER ACROSS FLORIDA INTO TUESDAY  
BEFORE PROGRESSING SOUTHWARD THROUGH THE FLORIDA STRAITS TUESDAY  
NIGHT AS A LOW DEVELOPS AND MOVES OFFSHORE ROUGHLY PARALLEL TO THE  
EASTERN SEABOARD, LEADING TO SHOWERS AND THUNDERSTORMS ACROSS THE  
SUNSHINE STATE -- ISOLATED STRONG THUNDERSTORMS ARE POSSIBLE. AS  
THE SURFACE LOW STRENGTHENS WHILE MOVING NORTHEASTWARD EAST OF THE  
ATLANTIC COAST, RAIN SPREADS UP THE COASTAL PLAIN OF GEORGIA AND  
THE CAROLINAS TONIGHT AND TUESDAY MORNING, THROUGH THE EASTERN  
SHORE AND LONG ISLAND ON TUESDAY, BEFORE CLIPPING COASTAL NEW  
ENGLAND BY WEDNESDAY MORNING. LOCALIZED FLOODING IS A POSSIBILITY  
ALONG THE COAST OF THE CAROLINAS. LIGHT SNOW COULD MIX IN WHERE  
THE PRECIPITATION REACHES HIGHER ELEVATIONS OF THE SOUTHERN  
APPALACHIANS AND NEARBY PIEDMONT, AS WELL AS INTERIOR NEW ENGLAND.  
 
TEMPERATURES ARE EXPECTED TO REMAIN COOLER THAN AVERAGE THIS  
AFTERNOON ACROSS THE SOUTHERN PLAINS EAST AND NORTHWARD INTO THE  
NORTHEAST. A FEW RECORD COLD HIGH TEMPERATURES ARE POSSIBLE ACROSS  
TEXAS AND THE LOWER MISSISSIPPI VALLEY THIS AFTERNOON AND  
ACROSS/NEAR THE CAROLINAS ON TUESDAY, WITH TEMPERATURES MODERATING  
THEREAFTER. WARMER THAN AVERAGE SPOTS FOR THE BEGINNING OF THE  
WORKWEEK WILL BE THE PACIFIC NORTHWEST AND THE SOUTHWEST.  
 
ROTH/TATE  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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