Prognostic Meteorological Discussion
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FXUS01 KWBC 260820
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
419 AM EDT SUN MAR 26 2017

VALID 12Z SUN MAR 26 2017 - 12Z TUE MAR 28 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
THE SOUTHERN PLAINS...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE TENNESSEE VALLEY...

...RAIN/FREEZING RAIN POSSIBLE OVER PARTS OF THE UPPER GREAT LAKES
AND THE NORTHEAST...

AN UPPER-LEVEL LOW OVER MIDDLE MISSISSIPPI VALLEY/WESTERN OHIO
VALLEY WILL SLOWLY WEAKEN WHILE MOVING NORTHEASTWARD TO MAINE BY
MONDAY EVENING.  SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG THE
CENTRAL GULF COAST ON SUNDAY MORNING THAT WILL EXPAND NORTHWARD
INTO PARTS OF THE OHIO VALLEY BY SUNDAY AFTERNOON INTO SUNDAY
EVENING.  SHOWERS AND THUNDERSTORMS WILL BE RESTRICTED TO THE
SOUTHERN APPALACHIANS BY MONDAY MORNING, EXPANDING INTO PARTS OF
THE CENTRAL/SOUTHERN APPALACHIANS BY MONDAY EVENING.  RAIN WILL
ALSO DEVELOP OVER PARTS OF THE UPPER/MIDDLE MISSISSIPPI VALLEY AND
THE GREAT LAKES/OHIO VALLEY AS WELL AS PARTS OF THE NORTHERN
MID-ATLANTIC ON SUNDAY MORNING THAT WILL MOVE INTO PARTS OF THE
NORTHEAST BY SUNDAY EVENING INTO MONDAY MORNING.  THE RAIN WILL
WANE OVER PARTS OF THE WESTERN OHIO VALLEY/UPPER MISSISSIPPI
VALLEY OVERNIGHT SUNDAY.  IN ADDITION, RAIN/FREEZING RAIN WILL
DEVELOP OVER PARTS OF THE UPPER GREAT LAKES ON SUNDAY MORNING AND
OVER PARTS OF THE NORTHEAST ON SUNDAY NIGHT INTO MONDAY MORNING.
SNOW WILL ALSO DEVELOP OVER PARTS OF MAINE OVERNIGHT SUNDAY INTO
MONDAY AND MONDAY EVENING.

MEANWHILE, ENERGY OVER THE SOUTHERN/CENTRAL ROCKIES AND HIGH
PLAINS WILL MOVE NORTHEASTWARD TO THE OHIO VALLEY BY MONDAY
EVENING.  THE SYSTEM WILL PRODUCE RAIN AND HIGHER ELEVATION SNOW
OVER PARTS OF THE CENTRAL ROCKIES ON SUNDAY ENDING OVERNIGHT
SUNDAY.  ON SUNDAY AFTERNOON INTO EVENING, SHOWERS AND
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE CENTRAL/SOUTHERN
PLAINS THAT WILL MOVE INTO PARTS OF THE MIDDLE/LOWER MISSISSIPPI
VALLEY BY MONDAY MORNING.  THE SHOWERS AND THUNDERSTORMS WILL MOVE
INTO PARTS OF THE OHIO VALLEY/TENNESSEE VALLEY AND PARTS OF THE
SOUTHEAST BY MONDAY EVENING.

OVER THE WEST COAST, A FRONT WILL MOVE ONSHORE BY SUNDAY EVENING
CONTINUING TO MOVE EASTWARD TO THE ROCKIES BY MONDAY EVENING.  THE
STORM WILL BEGIN TO PRODUCE RAIN AND HIGHER ELEVATION SNOW OVER
PARTS OF THE PACIFIC NORTHWEST/NORTHERN CALIFORNIA THAT WILL
EXPAND INLAND TO PARTS OF THE NORTHERN ROCKIES BY SUNDAY EVENING.
THE RAIN AND HIGHER ELEVATION SNOW WILL MOVE INTO PARTS OF THE
GREAT BASIN ON MONDAY AND INTO PARTS OF THE CENTRAL
ROCKIES/SOUTHWEST ON MONDAY AFTERNOON INTO MONDAY EVENING.  BEHIND
THE SYSTEM, ONSHORE FLOW WILL AID IN PRODUCING COASTAL RAIN AND
HIGHER ELEVATION SNOW OVER PARTS OF THE PACIFIC NORTHWEST/NORTHERN
CALIFORNIA ON MONDAY INTO MONDAY EVENING.


ZIEGENFELDER


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