Prognostic Meteorological Discussion
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000
FXUS01 KWBC 290828
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
427 AM EDT WED MAR 29 2017

VALID 12Z WED MAR 29 2017 - 12Z FRI MAR 31 2017

...THERE IS AS SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE
MIDDLE/LOWER MISSISSIPPI VALLEYS...

...HEAVY SNOW LIKELY FOR THE CASCADES AND THE NORTHERN
ROCKIES/GREAT BASIN...

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

LOW PRESSURE OVER THE SOUTHERN PLAINS WILL SLOWLY MOVE
NORTHEASTWARD TO THE MIDDLE MISSISSIPPI VALLEY/WESTERN OHIO VALLEY
BY THURSDAY EVENING.  THE STORM WILL PRODUCE SHOWERS AND
THUNDERSTORMS OVER PARTS OF THE CENTRAL/SOUTHERN PLAINS AND MIDDLE
MISSISSIPPI VALLEY INTO PARTS OF THE SOUTHERN HIGH PLAINS THAT
WILL MOVE EASTWARD TO THE OHIO VALLEY/TENNESSEE VALLEY AND CENTRAL
GULF COAST BY THURSDAY EVENING.  SHOWERS AND THUNDERSTORMS WILL
ALSO DEVELOP OVER PARTS OF THE CENTRAL/SOUTHERN APPALACHIANS AND
THE SOUTHEAST ON THURSDAY AFTERNOON INTO THURSDAY EVENING.  IN
ADDITION, RAIN WILL DEVELOP OVER PARTS OF THE MIDDLE MISSOURI
VALLEY ON WEDNESDAY MORNING AND EXPAND INTO PARTS OF THE UPPER
GREAT LAKES BY WEDNESDAY EVENING.  BY THURSDAY RAIN WILL MOVE INTO
THE GREAT LAKES AND INTO PARTS OF THE NORTHERN APPALACHIANS BY
THURSDAY EVENING.  ADDITIONALLY, RAIN AND HIGHER ELEVATION SNOW
WILL DEVELOP OVER PARTS OF THE CENTRAL/SOUTHERN ROCKIES ENDING BY
WEDNESDAY NIGHT.  SNOW WILL ALSO DEVELOP OVER PARTS OF THE UPPER
GREAT LAKES OVERNIGHT WEDNESDAY INTO THURSDAY EVENING.

MEANWHILE, UPPER-LEVEL ENERGY OVER THE EASTERN PACIFIC WILL MOVE
ONSHORE OVER THE WEST COAST BY EARLY THURSDAY MORNING FORMING AN
UPPER-LEVEL LOW OVER THE GREAT BASIN BY THURSDAY EVENING.  A PLUME
OF MOISTURE WILL STREAM INTO THE PACIFIC NORTHWEST ON WEDNESDAY
THAT WILL SLOWLY MOVE SOUTHWARD ALONG THE COAST TO SOUTHERN
CALIFORNIA BY THURSDAY MORNING WHILE WEAKENING.  RAIN AND HIGHEST
ELEVATION SNOW WILL DEVELOP OVER THE PACIFIC NORTHWEST INTO PARTS
OF THE NORTHERN ROCKIES ON WEDNESDAY.  OVERNIGHT WEDNESDAY AS THE
UPPER-LEVEL ENERGY MOVES ONSHORE, THE SNOW LEVELS OVER THE
NORTHWEST WILL LOWER.  BY THURSDAY MORNING, RAIN AND HIGHER
ELEVATION SNOW WILL MOVE INTO PARTS OF NORTHERN CALIFORNIA/GREAT
BASIN AND CENTRAL ROCKIES THROUGH THURSDAY EVENING.


ZIEGENFELDER


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