Prognostic Meteorological Discussion
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FXUS01 KWBC 240816
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
415 AM EDT FRI MAR 24 2017

VALID 12Z FRI MAR 24 2017 - 12Z SUN MAR 26 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE LOWER MISSISSIPPI VALLEY...

...HEAVY SNOW POSSIBLE OVER THE SIERRAS, CASCADES, AND SAWTOOTH
MOUNTAINS...

...LIGHT RAIN/FREEZING RAIN OVER PARTS OF THE NORTHEAST...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE MIDDLE/LOWER MISSISSIPPI
VALLEY...

AN UPPER-LEVEL LOW WILL MOVE OUT OF THE CENTRAL/SOUTHERN HIGH
PLAINS THAT WILL ADVANCE EASTWARD TO THE MIDDLE MISSISSIPPI VALLEY
BY SATURDAY EVENING.  MOISTURE FROM THE GULF OF MEXICO WILL STREAM
NORTHWARD PARALLEL TO THE STORMS ASSOCIATED COLD FRONT AND
OVERRUNNING THE WARM FRONT FROM PARTS OF THE MIDDLE MISSISSIPPI
VALLEY TO THE GREAT LAKES.  SHOWERS AND THUNDERSTORMS WILL DEVELOP
ALONG AND AHEAD OF THE COLD FRONT OVER PARTS OF THE SOUTHERN
PLAINS THAT WILL EXPAND NORTHWARD TO THE MIDDLE MISSISSIPPI VALLEY
BY FRIDAY EVENING.  THE SHOWERS AND THUNDERSTORMS WILL MOVE
EASTWARD TO PARTS OF THE WESTERN OHIO VALLEY/TENNESSEE VALLEY AND
CENTRAL GULF COAST/SOUTHEAST BY SATURDAY.  RAIN WILL ALSO DEVELOP
OVER PARTS OF THE CENTRAL PLAINS INTO THE GREAT LAKES/OHIO VALLEY
THAT WILL CONTINUE INTO SATURDAY EVENING FROM THE GREAT LAKES TO
PARTS OF SOUTHERN NEW ENGLAND.  IN ADDITION, AREAS OF
RAIN/FREEZING RAIN WILL DEVELOP OVER PARTS OF THE NORTHERN
APPALACHIANS ON FRIDAY MORNING INTO EARLY FRIDAY AFTERNOON.
ADDITIONALLY, SNOW WILL DEVELOP OVER PARTS OF NORTHERN NEW ENGLAND
THAT WILL END BY SATURDAY MORNING.  FURTHERMORE, SNOW OVER PARTS
OF THE CENTRAL ROCKIES THAT WILL SLOWLY END BY FRIDAY EVENING.

MEANWHILE, A FRONT MOVING ONSHORE OVER THE PACIFIC
NORTHWEST/NORTHERN CALIFORNIA WILL MOVE EASTWARD TO PARTS OF THE
ROCKIES BY SATURDAY EVENING.  A PLUME OF MOISTURE WILL MOVE INTO
PARTS OF NORTHERN/CENTRAL CALIFORNIA THAT WILL SLOWLY MOVE
SOUTHWARD TO SOUTHERN CALIFORNIA AND WEAKEN BY SATURDAY.  RAIN AND
HIGHER ELEVATION SNOW WILL DEVELOP OVER PARTS OF THE PACIFIC
NORTHWEST AND NORTHERN/CENTRAL CALIFORNIA THAT WILL EXPAND
EASTWARD INTO PARTS OF THE NORTHERN ROCKIES/GREAT BASIN BY
SATURDAY MORNING.  THE RAIN AND HIGHER ELEVATION SNOW WILL WEAKEN
OVER CALIFORNIA BY SATURDAY EVENING.  IN ADDITION, SNOW AND LOWER
ELEVATION RAIN WILL MOVE INTO PARTS OF THE SOUTHWEST ON SATURDAY
INTO SATURDAY EVENING.


ZIEGENFELDER


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