Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
305 PM EST Thu Nov 15 2018

Valid 00Z Fri Nov 16 2018 - 00Z Sun Nov 18 2018

...Early season winter storm to bring ice and heavy snow from the
Ohio Valley to the Appalachians and interior Northeast through
Friday...

The big weather story across the continental U.S. through the end
of the work week will be the nor'easter affecting the northeastern
U.S.  Many locations from Virginia to New York have received
noteworthy early season snow, with some inland locations getting
in excess of six inches thus far.  This storm system will continue
lifting northward along the coast and bring widespread inland snow
from Pennsylvania to Maine, with the possibility of a foot or more
of snow accumulation for parts of upstate New York and northern
Pennsylvania.  Winter storm warnings are currently posted from
eastern West Virginia to western Maine, and winter weather
advisories extend westward to include parts of the Ohio Valley and
Great Lakes region.  Sleet and freezing rain are also likely
across parts of the central Appalachians to the Hudson Valley
region of New York.  Strong winds and coastal flooding will be
possible from Long Island to coastal Maine as the low pressure
intensifies overnight and into Friday.  Improving conditions will
return in time for the weekend.

Elsewhere across the U.S., a series of cold fronts dropping
southward from Canada will lead to snow across the northern tier
of the country as well.  By Thursday night, a front will approach
the northern Rockies and then the northern Plains, and light snow
will overspread those areas.  Snow is forecast to move southward
with the cold front across the central Rockies and central Plains
and then the middle Mississippi Valley by Friday evening.  The
northern and central Rockies could see 5 to 10 inches of snow, and
a swath of 2 to 4 inches of snow is expected from the northern
Plains to parts of the Upper Midwest Valley by Saturday morning,
followed by a fresh surge of very cold weather. 

D. Hamrick


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