Prognostic Meteorological Discussion
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000
FXUS01 KWBC 262008
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
407 PM EDT TUE AUG 26 2014

VALID 00Z WED AUG 27 2014 - 00Z FRI AUG 29 2014

...HEAVY RAIN POSSIBLE OVER THE CENTRAL PLAINS AND THE MIDDLE
MISSISSIPPI VALLEY...

A SLOW MOVING FRONT EXTENDING FROM THE LOWER GREAT LAKES WESTWARD
TO THE CENTRAL PLAINS WILL MOVE OFF THE NORTHEAST COAST BY
THURSDAY WHILE REMAINING STATIONARY FROM THE SOUTHERN MID-ATLANTIC
TO THE CENTRAL PLAINS.  SHOWERS AND THUNDERSTORMS WILL DEVELOP
ALONG AND AHEAD OF THE BOUNDARY FROM THE LOWER GREAT LAKES TO THE
OHIO VALLEY THAT WILL MOVE TO THE NORTHEAST COAST BY WEDNESDAY
EVENING.  THE SHOWERS AND THUNDERSTORMS WILL END OVERNIGHT
WEDNESDAY OVER THE MID-ATLANTIC TO THE OHIO VALLEY.

CLOSED LOW OVER THE GREAT BASIN WILL MOVE EASTWARD TO THE CENTRAL
ROCKIES BY THURSDAY.  THE ENERGY WILL HELP IN PRODUCING SHOWERS
AND THUNDERSTORMS OVER THE SOUTHWEST/GREAT BASIN INTO PARTS OF THE
SOUTHERN/CENTRAL ROCKIES AND THE CENTRAL PLAINS, WILL CONTINUE
OVER THE REGION THROUGH WEDNESDAY EVENING BEFORE WANING TO THE
CENTRAL ROCKIES BY THURSDAY.  MOISTURE WILL OVERRUN THE FRONT OVER
THE CENTRAL PLAINS/MIDDLE MISSISSIPPI VALLEY PRODUCING SHOWERS AND
THUNDERSTORMS OVER THE CENTRAL PLAINS/MIDDLE MISSISSIPPI VALLEY
THROUGH THURSDAY.  AS THE UPPER-LEVEL ENERGY APPROACHES FROM THE
WEST, SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE
SOUTHERN PLAINS AND MOVING EASTWARD AWAY FROM THE SOUTHERN ROCKIES
WEDNESDAY NIGHT INTO THURSDAY.  SHOWERS AND THUNDERSTORMS WILL
EXPAND INTO PARTS OF THE UPPER MISSISSIPPI VALLEY/UPPER GREAT
LAKES BY THURSDAY MORNING.

ELSEWHERE, UPPER-LEVEL ENERGY OVER THE WESTERN GULF COAST WILL
TRIGGER SHOWERS AND THUNDERSTORMS OVER THE WESTERN/CENTRAL GULF
COAST THROUGH THURSDAY.


ZIEGENFELDER

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




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