Prognostic Meteorological Discussion
Issued by NWS

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FXUS01 KWBC 240818
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
418 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 WILL LINGER 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 ON WEDNESDAY MORNING 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 BY WEDNESDAY EVENING THAT WILL CONTINUE OVER THE
AREA WITH RAIN DEVELOPING OVER PARTS OF THE PACIFIC NORTHWEST BY
THURSDAY EVENING.  RAIN WILL ALSO DEVELOP OVER PARTS OF THE
NORTHERN HIGH PLAINS INTO PARTS OF THE GREAT BASIN THAT WILL MOVE
INTO PARTS OF THE UPPER MIDWEST INTO THE CENTRAL ROCKIES BY
THURSDAY EVENING.


ZIEGENFELDER


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

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