Prognostic Meteorological Discussion
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358
FXUS01 KWBC 240757
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
356 AM EDT MON APR 24 2017

VALID 12Z MON APR 24 2017 - 12Z WED APR 26 2017

...HEAVY RAIN POSSIBLE OVER THE CAROLINAS...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE PACIFIC
NORTHWEST/NORTHERN CALIFORNIA...

...SNOW POSSIBLE FOR PARTS OF THE NORTHERN/CENTRAL ROCKIES AND THE
CASCADES...

LOW PRESSURE OVER THE SOUTHEAST WILL SLOWLY MOVE NORTHWARD TO THE
NORTH CAROLINA COAST BY TUESDAY EVENING.  THE SYSTEM WILL PRODUCE
SHOWERS AND THUNDERSTORMS OVER PARTS OF THE SOUTHEAST AND PORTIONS
OF THE SOUTHERN MID-ATLANTIC THAT WILL MOVE OFF THE SOUTHEAST
COAST BY TUESDAY MORNING AND REMAIN OVER PARTS OF THE SOUTHERN
MID-ATLANTIC COAST THROUGH TUESDAY EVENING.  RAIN WILL ALSO
DEVELOP OVER THE VIRGINIAS THAT WILL SLOWLY EXPAND NORTHWARD INTO
THE NORTHERN MID-ATLANTIC/LOWER GREAT LAKES AND SOUTHERN NEW
ENGLAND BY TUESDAY MORNING AND CONTINUE TO EXPAND NORTHWARD INTO
NORTHERN NEW ENGLAND BY TUESDAY EVENING.

MEANWHILE, A FRONT EXTENDING FROM THE NORTHERN PLAINS TO THE
CENTRAL HIGH PLAINS INTO THE GREAT BASIN WILL MOVE EASTWARD TO THE
UPPER GREAT LAKES/MIDDLE MISSISSIPPI VALLEY TO THE SOUTHERN HIGH
PLAINS INTO THE SOUTHWEST BY TUESDAY EVENING.  THE STORM WILL
PRODUCE RAIN AND SNOW OVER PARTS OF THE NORTHERN PLAINS INTO THE
UPPER GREAT LAKES THAT WILL MOVE INTO PARTS OF UPPER/MIDDLE
MISSISSIPPI VALLEY AND NORTHERN PLAINS BY MONDAY EVENING.  AS THE
SYSTEM MOVES EASTWARD, MOISTURE WILL MOVE NORTHWARD FROM THE
WESTERN GULF OF MEXICO AND POOL ALONG THE BOUNDARY.  SHOWERS AND
THUNDERSTORM WILL START TO DEVELOP NEAR THE FRONT OVER THE MIDDLE
MISSOURI VALLEY OVERNIGHT MONDAY EXPANDING INTO THE CENTRAL PLAINS
BY TUESDAY MORNING AND CONTINUING OVER THE REGION INTO TUESDAY
EVENING.


ZIEGENFELDER


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

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