Prognostic Meteorological Discussion
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FXUS01 KWBC 260815
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
415 AM EDT THU MAY 26 2016

VALID 12Z THU MAY 26 2016 - 12Z SAT MAY 28 2016

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE
SOUTHERN/CENTRAL PLAINS INTO PARTS OF THE MIDDLE/LOWER MISSISSIPPI
VALLEY...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE LOWER/MIDDLE MISSISSIPPI
VALLEY AND THE CENTRAL/SOUTHERN PLAINS...

A DEEP UPPER-LEVEL TROUGH EXTENDING FROM THE NORTHERN HIGH PLAINS
TO THE SOUTHWEST WILL SLOWLY MOVE EASTWARD TO THE PLAINS BY FRIDAY
EVENING.  DIURNAL HEATING WILL AID IN PRODUCING SHOWERS AND
THUNDERSTORMS OVER THE NORTHERN INTERMOUNTAIN REGION SOUTHWARD TO
THE GREAT BASIN/SOUTHWEST EASTWARD TO THE NORTHERN/CENTRAL HIGH
PLAINS ON THURSDAY/FRIDAY AFTERNOON AND EVENING.  THE AREAL
COVERAGE OF THE SHOWERS AND THUNDERSTORMS WILL BE AT A MINIMUM
DURING THE LATE NIGHT AND MORNING TIME PERIODS.

DOWNSTREAM FROM THE UPPER-LEVEL TROUGH, MOISTURE FROM THE GULF OF
MEXICO WILL MOVE NORTHWARD OVER THE SOUTHERN PLAINS/LOWER
MISSISSIPPI VALLEY INTO THE GREAT LAKES/OHIO VALLEY AND INTO THE
UPPER MISSISSIPPI VALLEY THAT WILL CONTINUE THROUGH FRIDAY
EVENING.  SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE
PLAINS AND MISSISSIPPI VALLEY INTO THE GREAT LAKES AND OHIO VALLEY
THROUGH FRIDAY EVENING.  AN AREA OF SHOWERS AND THUNDERSTORMS WILL
DEVELOP OVER THE OHIO VALLEY ON LATE THURSDAY MORNING INTO
AFTERNOON THAT WILL MOVE INTO THE NORTHERN/CENTRAL APPALACHIANS
AND THE MID-ATLANTIC BY THURSDAY EVENING THEN DISSIPATE.  ON
FRIDAY THE SHOWERS AND THUNDERSTORMS WILL REDEVELOP OVER THE
NORTHERN/CENTRAL APPALACHIANS AND EXPAND INTO PARTS OF THE
NORTHEAST AND INTO PARTS OF THE SOUTHERN APPALACHIANS BY FRIDAY
EVENING.  IN ADDITION, A FRONT WILL DEVELOP OVER THE PACIFIC
NORTHWEST BY THURSDAY EVENING MOVING EASTWARD TO THE NORTHERN
ROCKIES/GREAT BASIN BY FRIDAY EVENING.  RAIN WILL DEVELOP OVER
PARTS OF THE PACIFIC NORTHWEST COAST ON THURSDAY EXPANDING INTO
PARTS OF THE NORTHERN INTERMOUNTAIN REGION BY FRIDAY EVENING.


ZIEGENFELDER


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_WBG.PHP
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