Prognostic Meteorological Discussion
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000
FXUS01 KWBC 232022
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
422 PM EDT MON OCT 23 2017

VALID 00Z TUE OCT 24 2017 - 00Z THU OCT 26 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE SOUTHERN MID-ATLANTIC...

...HEAVY RAIN POSSIBLE OVER PARTS OF NEW ENGLAND...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE UPPER GREAT LAKES...

A DEEP UPPER-LEVEL TROUGH OVER THE MIDDLE/UPPER MISSISSIPPI VALLEY
WILL DEEPEN AND THE TROUGH AXIS WILL MOVE TO THE GREAT LAKES TO
THE EASTERN GULF COAST BY WEDNESDAY.  RAIN WILL DEVELOP OVER THE
GREAT LAKES/OHIO VALLEY THROUGH WEDNESDAY MORNING.  WET SNOW WILL
ALSO DEVELOP OVER PARTS OF THE NORTHWESTERN PORTION OF THE UPPER
PENINSULA OF MICHIGAN TUESDAY AFTERNOON INTO LATE TUESDAY EVENING.
 RAIN WILL ALSO DEVELOP OVER PARTS OF THE LOWER GREAT LAKES INTO
THE CENTRAL APPALACHIANS THAT WILL MOVE SLOWLY MOVE INTO PARTS OF
NORTHERN NEW ENGLAND BY WEDNESDAY MORNING.

SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE
ASSOCIATED FRONT FROM PARTS OF THE MID-ATLANTIC/SOUTHERN
APPALACHIANS INTO THE SOUTHEAST THAT WILL MOVE NORTHEASTWARD INTO
SOUTHERN NEW ENGLAND AND TO THE MID-ATLANTIC COAST BY TUESDAY
MORNING.  THE SHOWERS AND THUNDERSTORMS WILL MOVE OFF MOST OF THE
SOUTHEAST COAST BY TUESDAY MORNING, TOO.  SIMILARLY, THE SHOWERS
AND THUNDERSTORMS WILL MOVE OFF THE MID-ATLANTIC COAST OVERNIGHT
TUESDAY, WHILE LINGERING OVER PARTS OF SOUTHERN NEW ENGLAND
THROUGH WEDNESDAY MORNING.  IN ADDITION, UPPER-LEVEL ENERGY WILL
MOVE INTO PARTS OF THE UPPER MISSISSIPPI VALLEY/UPPER GREAT LAKES
OVERNIGHT TUESDAY INTO WEDNESDAY.  LIKEWISE, LIGHT RAIN WILL
DEVELOP OVERNIGHT TUESDAY OVER PARTS OF THE UPPER GREAT
LAKES/UPPER MISSISSIPPI VALLEY INTO WEDNESDAY.

ELSEWHERE, ONSHORE FLOW WILL RETURN TO PARTS OF THE PACIFIC
NORTHWEST OVERNIGHT TUESDAY PRODUCING LIGHT RAIN OVER PARTS OF THE
NORTHWEST ON WEDNESDAY.  FURTHERMORE, STRONG HIGH PRESSURE OVER
THE ROCKIES WILL AID IN PRODUCING SANTA ANNA WIND OVER PARTS OF
SOUTHWESTERN CALIFORNIA THROUGH WEDNESDAY.


ZIEGENFELDER


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




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