Prognostic Meteorological Discussion
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000
FXUS01 KWBC 261959
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
358 PM EDT Thu Apr 26 2018

Valid 00Z Fri Apr 27 2018 - 00Z Sun Apr 29 2018

...Unsettled weather with locally heavy rain and cooler
temperatures is expected to return to the Mid-Atlantic and
Northeast...

...A new storm system coming into the West will bring some rain
and cooler temperatures...

...Mild and dry weather is expected for the Intermountain West...

An area of low pressure moving across the Southeast is expected to
lift to the northeast tonight through Friday which will spread
clouds and some locally heavy rain over the Mid-Atlantic region
before the system gradually moves up over the Northeast for the
start of the weekend. This system coupled with the arrival of a
fairly strong cold front from the Midwest and Great Lakes region
will allow for cooler temperatures with daytime temperatures
generally below normal across much of the Eastern U.S. going into
the weekend. The coldest temperatures will be across the Great
Lakes and Ohio Valley where high temperatures will be as much as
10 to 15 degrees below normal.

The weather across the West will initially be quite mild and dry,
but there will be a slow-moving storm system coming in off the
Pacific Ocean that will cross the West Coast on Friday and bring
cooler weather a threat of rain into Saturday along portions of
the West Coast and especially the Pacific Northwest. The mild
weather initially in place will be displaced downstream across the
Intermountain region through Saturday and then out into the High
Plains by late in the weekend. Some daytime readings will reach as
much as 10 to 20 degrees above normal here.

The remainder of the nation will be generally dry with
temperatures near normal. However, some shower activity is
expected by Saturday across the central and southern Rockies and
the southern High Plains as some moisture begins to return up to
the north.

Orrison

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





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