Prognostic Meteorological Discussion
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FXUS01 KWBC 192006
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
405 PM EDT SAT APR 19 2014

VALID 00Z SUN APR 20 2014 - 00Z TUE APR 22 2014

...HEAVY RAIN TO MOVE OFF THE SOUTHEAST COAST...

...TEMPERATURES WILL BE 10 TO 15 DEGREES ABOVE AVERAGE OVER THE
NORTHERN PLAINS...

A FRONT OVER THE UPPER MIDWEST WILL BECOME STAGNATE ONLY MOVING TO
THE UPPER GREAT LAKES BY MONDAY, WHILE A SECOND FRONT OVER THE
NORTHERN ROCKIES WILL MOVE EASTWARD TO THE UPPER MISSISSIPPI
VALLEY/CENTRAL PLAINS BY MONDAY.  RAIN WILL DEVELOP ALONG THE
BOUNDARY OVER THE UPPER MIDWEST MOVING INTO THE UPPER GREAT LAKES
BY MONDAY.  SHOWERS AND THUNDERSTORMS WILL DEVELOP ALSO ALONG THE
FRONT OVER PARTS OF THE CENTRAL PLAINS/CENTRAL ROCKIES ON SATURDAY
EVENING.  THE SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE
SOUTHERN PLAINS BY SUNDAY MORNING AND MOVE EASTWARD TO PARTS OF
THE MIDDLE/LOWER MISSISSIPPI VALLEY ON SUNDAY EVENING INTO MONDAY.


THE FRONT OVER THE NORTHERN ROCKIES WILL BE MAINLY DRY OVER THE
REGION WITH A LITTLE SNOW OVER THE AREA ON SATURDAY EVENING. THE
BOUNDARY WILL INTERSECT MOISTURE FLOWING NORTHWARD OVER THE PLAINS
ON SUNDAY AFTERNOON PRODUCING LIGHT RAIN OVER PARTS OF THE
NORTHERN PLAINS ON SUNDAY EVENING MOVING INTO PARTS OF THE UPPER
GREAT LAKES BY MONDAY.  MEANWHILE, ONSHORE FLOW WILL AID IN
PRODUCING RAIN AND HIGHEST ELEVATION SNOW OVER PARTS OF THE
PACIFIC NORTHWEST THROUGH SUNDAY AFTERNOON.  IN ADDITION, ANOTHER
FRONT WILL APPROACH THE PACIFIC NORTHWEST COAST BY MONDAY MORNING
ACCOMPANIED BY LIGHT RAIN ALONG THE COAST.

ELSEWHERE, UPPER-LEVEL ENERGY OVER THE SOUTHERN ROCKIES WILL
PRODUCE SHOWERS AND THUNDERSTORMS ON SATURDAY AFTERNOON AND
EVENING ENDING BY EARLY SUNDAY MORNING.  FURTHERMORE, LOW PRESSURE
ALONG THE SOUTHEAST COAST WILL MOVE SLOWLY NORTHEASTWARD OUT OVER
THE WESTERN ATLANTIC PRODUCING RAIN THAT WILL BE LIGHT TO MODERATE
AT TIMES OVER PARTS OF NORTH CAROLINA AND SHOWERS/THUNDERSTORMS
OVER PARTS OF SOUTH CAROLINA CHANGING TO RAIN THROUGH SUNDAY.


ZIEGENFELDER


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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