Prognostic Meteorological Discussion
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000
FXUS01 KWBC 201956
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
356 PM EDT SUN APR 20 2014

VALID 00Z MON APR 21 2014 - 00Z WED APR 23 2014

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE TEXAS
PANHANDLE...

...TEMPERATURES WILL BE 10 PLUS DEGREES ABOVE AVERAGE OVER PARTS
OF THE OHIO VALLEY/GREAT LAKES...

A FRONT OVER THE NORTHERN PLAINS/GREAT BASIN WILL MOVE EASTWARD TO
THE LOWER GREAT LAKES/SOUTHERN PLAINS BY TUESDAY MORNING.  THE
SYSTEM WILL PRODUCE SHOWERS AND THUNDERSTORMS OVER THE
CENTRAL/SOUTHERN PLAINS INTO THE UPPER GREAT LAKES THAT WILL MOVE
TO THE GREAT LAKES/SOUTHERN PLAINS/LOWER MISSISSIPPI VALLEY BY
MONDAY EVENING, RETREATING TO THE CENTRAL GULF COAST/LOWER
MISSISSIPPI VALLEY BY TUESDAY MORNING.  IN ADDITION, SHOWER AND
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE SOUTHERN/CENTRAL
ROCKIES ON SUNDAY EVENING.  RAIN WILL ALSO DEVELOP OVER PARTS OF
THE UPPER GREAT LAKES SUNDAY EVENING INTO MONDAY MORNING.  AN AREA
OF LIGHT TO MODERATE RAIN WILL DEVELOP OVER PARTS OF THE LOWER
GREAT LAKES/CENTRAL APPALACHIANS ON TUESDAY MORNING.

MEANWHILE, A FRONT APPROACHING THE PACIFIC NORTHWEST COAST WILL
MOVE ONSHORE ON MONDAY MOVING INLAND TO THE NORTHERN ROCKIES/GREAT
BASIN BY TUESDAY.  LIGHT RAIN WILL START ALONG THE NORTHWEST COAST
ON MONDAY MORNING, EXPANDING INTO NORTHERN CALIFORNIA BY MONDAY
EVENING.  AS THE BOUNDARY MOVES EASTWARD, THE PRECIPITATION SHIELD
WILL MOVE INLAND PRODUCING LIGHT TO MODERATE RAIN OVER PARTS OF
THE NORTHERN INTERMOUNTAIN REGION INTO PARTS OF THE NORTHERN
ROCKIES/GREAT BASIN BY TUESDAY.  SNOW WILL DEVELOP OVER PARTS OF
THE SIERRAS TOO ON TUESDAY MORNING.  RAIN WILL EXTEND INTO PARTS
OF THE CENTRAL ROCKIES WESTWARD TO THE PACIFIC NORTHWEST COAST.

ELSEWHERE, LIGHT RAIN OVER THE CAROLINA COAST WILL MOVE OUT OVER
THE WESTERN ATLANTIC BY EARLY MONDAY AFTERNOON.  THE ASSOCIATED
AREA OF LOW PRESSURE WILL LIKEWISE MOVE EASTWARD OUT OVER THE
ATLANTIC.


ZIEGENFELDER


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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