Prognostic Meteorological Discussion
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000
FXUS01 KWBC 240747
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
347 AM EDT Tue Apr 24 2018

Valid 12Z Tue Apr 24 2018 - 12Z Thu Apr 26 2018

...Heavy rain possible over parts of Northern Virginia and the
North Carolina Coast...

...Temperatures will be 10 to 20 degrees below average over parts
of the High Plains...

Slow moving storm over the Southeast will move northward to the
Northern Mid-Atlantic Coast by Wednesday evening.  The system will
produce showers and thunderstorms along and ahead of the
associated front over parts of the Southeast Coast and the Florida
peninsula that will move along the Mid-Atlantic Coast into
Southern New England by Wednesday evening.  The showers and
thunderstorms over Florida will move off the southern tip of
Florida by Wednesday morning.  In addition, rain will develop over
parts of the Southern/Central Appalachians, Ohio Valley into parts
of the Mid-Atlantic on Tuesday morning.  The rain will move into
parts of the Great Lakes on Tuesday moving into the Northeast
overnight Tuesday.  The rain will end over most of the Ohio Valley
by Wednesday afternoon.  While the rain will continue over parts
of the Northeast through Wednesday evening, the rain will end over
most of the Mid-Atlantic by Wednesday evening, too.

Meanwhile, upper-level energy over the Northern Rockies will move
southeastward to the Central/Southern Plains by Wednesday evening.
 The energy will produce light snow over parts of the
Northern/Central Rockies and the Northern/Central High Plains that
will slowly end overnight Tuesday.  Rain will also develop over
parts of the Northern/Central Plains that will end over the
Northern Plains by Wednesday morning.  The rain will move into
parts of the Middle/Lower Mississippi Valley on Wednesday into
Wednesday evening.  Additionally, showers and thunderstorms will
develop along and ahead of the associated front over parts of the
Southern High Plains Tuesday afternoon into evening.  The showers
and thunderstorms will move southeastward into other parts of the
Southern Plains by Wednesday morning and continue into Wednesday
evening.  Furthermore, a front over Western Canada will sink
southward into the Northern High Plains/Northern Rockies on
Wednesday that will produce areas of light rain over parts of the
region by Wednesday evening.


Ziegenfelder


Graphics available at
www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
$$




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