Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
333 AM EDT Mon Sep 26 2016

Valid 12Z Mon Sep 26 2016 - 12Z Wed Sep 28 2016

...Cold front approaching the East Coast with showers and storms...

...Cool and dry for much of the central plains and Rockies...

The main weather maker across the continental U.S. over the next couple of
days will be an elongated frontal boundary crossing the eastern third of
the nation and extending down towards the Gulf Coast.  A return to
slightly more humid conditions can be expected across the Mid-Atlantic and
Northeast by Monday night ahead of the front, with a band of showers and a
few storms developing ahead of it. 

Of even greater interest will be a large upper level low that is forecast
to track across the northern Great Lakes and Ohio Valley by the middle of
the week.  There will be a surface low in association with that as well,
and unsettled weather conditions are likely with scattered to numerous
showers developing in the vicinity of it.  As the upper low slowly
approaches the central Appalachian Mountains, it may be able to tap into
enough moisture from the Atlantic Ocean to generate an organized area of
moderate to locally heavy rainfall by the end of the forecast period over
parts of the East Coast.

Elsewhere, expect cool and mostly dry conditions across much of the
central U.S. and extending westward towards the Rocky Mountains courtesy
of the large surface high in place.  A few showers will be possible over
the Pacific Northwest with the passage of a cold front over Washington and
Oregon.  Showers will also be possible over mountainous areas of Arizona
and New Mexico.

D. Hamrick

Graphics available at <a href="http://www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php"><u>www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php</u></a>