Prognostic Meteorological Discussion
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000
FXUS01 KWBC 061956
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
355 PM EDT WED MAY 06 2015

VALID 00Z THU MAY 07 2015 - 00Z SAT MAY 09 2015

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE CENTRAL/SOUTHERN PLAINS...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE CENTRAL/SOUTHERN PLAINS...

A SLOW MOVING FRONT EXTENDING FROM THE NORTHERN PLAINS TO THE
CENTRAL ROCKIES/GREAT BASIN WILL MOVE EASTWARD TO THE UPPER GREAT
LAKES TO THE CENTRAL PLAINS ROUGHLY WESTWARD TO THE GREAT BASIN BY
FRIDAY MORNING.  MOISTURE FROM THE WESTERN GULF OF MEXICO WILL
STREAM NORTHWARD OVER THE PLAINS/MISSISSIPPI VALLEY INTO THE UPPER
GREAT LAKES BY FRIDAY.  SHOWERS AND THUNDERSTORMS WILL DEVELOP
ALONG AND AHEAD OF THE BOUNDARY AND AHEAD OF THE DRYLINE OVER THE
PLAINS THAT WILL MOVE INTO THE UPPER GREAT LAKES WHILE CONTINUING
OVER THE CENTRAL/SOUTHERN PLAINS BY FRIDAY MORNING.

MEANWHILE, AN UPPER-LEVEL CLOSED LOW OVER THE PACIFIC NORTHWEST
WILL MOVE SOUTHWARD TO SOUTHERN CALIFORNIA BY FRIDAY.  SHOWERS AND
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE PACIFIC NORTHWEST
ENDING BY LATER WEDNESDAY NIGHT.  IN ADDITION, SHOWERS AND
THUNDERSTORMS AND RAIN/SNOW OVER THE HIGHEST ELEVATIONS WILL
DEVELOP OVER PARTS OF THE GREAT BASIN/NORTHERN/CENTRAL ROCKIES AND
PARTS OF SOUTHERN/CENTRAL CALIFORNIA THROUGH FRIDAY.

LOW PRESSURE OFF THE SOUTHEAST COAST WILL SLOWLY MOVE NORTHWARD TO
OFF THE CAROLINA COAST BY FRIDAY MORNING.  THE SYSTEM WILL DEVELOP
SHOWERS AND THUNDERSTORMS OVER PARTS OF FLORIDA THAT WILL MOVE
NORTHWARD TO THE CAROLINAS BY FRIDAY.  ADDITIONALLY, SHOWERS AND
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE MID-ATLANTIC AND THE
CENTRAL APPALACHIANS THROUGH FRIDAY.


ZIEGENFELDER


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