Prognostic Meteorological Discussion
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FXUS01 KWBC 240756
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
356 AM EDT WED MAY 24 2017

VALID 12Z WED MAY 24 2017 - 12Z FRI MAY 26 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE
SOUTHEAST...

...HEAVY RAIN POSSIBLE OVER PARTS OF FLORIDA...

AN UPPER-LEVEL LOW OVER THE MIDDLE MISSISSIPPI VALLEY WILL SLOWLY
MOVE EASTWARD TO THE OHIO VALLEY/CENTRAL APPALACHIANS BY THURSDAY
EVENING.   THE SYSTEM WILL PRODUCE SHOWERS AND THUNDERSTORMS OVER
THE SOUTHEAST THAT WILL EXPAND INTO PARTS OF THE OHIO
VALLEY/CENTRAL APPALACHIANS AND PARTS OF THE TENNESSEE VALLEY BY
WEDNESDAY EVENING.  THE SHOWERS AND THUNDERSTORMS WILL MAINLY MOVE
OFF THE MID-ATLANTIC/SOUTHEAST COAST BY THURSDAY MORNING.  SOME OF
THE SHOWERS AND THUNDERSTORMS LINGERING OVER PARTS OF THE
MID-ATLANTIC INTO THURSDAY EVENING.  IN ADDITION, RAIN WILL
DEVELOP OVER PARTS OF UPPER GREAT LAKES/OHIO VALLEY INTO PARTS OF
THE NORTHERN MID-ATLANTIC AND INTO PARTS OF THE LOWER MISSISSIPPI
VALLEY THAT WILL BE LIMITED TO PARTS OF THE MIDDLE MISSISSIPPI
VALLEY BY WEDNESDAY EVENING.  THE RAIN WILL MOVE INTO PARTS OF THE
OHIO VALLEY AND THE LOWER GREAT LAKES OVERNIGHT WEDNESDAY.  THE
RAIN WILL ALSO MOVE INTO THE GREAT LAKES/CENTRAL APPALACHIANS AND
THE NORTHEAST BY THURSDAY EVENING.

MEANWHILE, A FRONT OVER THE NORTHERN HIGH PLAINS TO PARTS OF THE
GREAT BASIN WILL MOVE EASTWARD TO THE NORTHERN/CENTRAL PLAINS INTO
THE CENTRAL ROCKIES/GREAT BASIN BY THURSDAY EVENING.  AREAS OF
RAIN AND HIGHEST ELEVATION SNOW WILL DEVELOP OVER PARTS OF THE
NORTHERN ROCKIES THAT WILL CONTINUE OVER THE AREA WITH RAIN
DEVELOPING OVER PARTS OF THE PACIFIC NORTHWEST BY THURSDAY
EVENING.





ZIEGENFELDER


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

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