…A rapidly developing coastal storm is expected to bring a period of
gusty winds and locally heavy rain to southeast Virginia and eastern North
Carolina tonight through Friday morning…
…Unsettled weather to cross through much of the West with lower
elevation rain and mountain snow going through Friday and Friday night…
…Below normal temperatures are forecast for much of the West, with
generally above normal temperatures from the Plains and Midwest eastward
to the Eastern Seaboard going into the weekend…
A storm system advancing across the central Appalachians, the Mid-Atlantic
states, and portions of the Southeast will bring rain across these areas
through this evening. However, an area of low pressure is forecast to
strengthen near the North Carolina Outer Banks tonight which will help to
bring more concentrated areas of heavier rain across southeast Virginia
and far eastern North Carolina along with gusty winds. This coastal low
will then move offshore and away from the East Coast by late Friday which
will allow for the rains to come to an end. Portions of the Outer Banks
though may see locally a few inches of rain before it tapers off.
High pressure will then envelope much of the Eastern U.S. in the wake of
this system and will remain anchored in place going through the weekend
ahead. Temperatures will be cool across the southern Mid-Atlantic on
Friday with areas of lingering clouds and rain, but a warming trend will
generally be noted across much of the East heading into the weekend with
dry air and temperatures that will trend back above normal. The milder air
will be coming from areas of the Plains and Midwest which will already be
well above normal, and by this weekend, large areas of the Midwest to the
Appalachians and up into the Northeast will see high temperatures well
into the 50s and 60s and locally running 10 to 15 degrees above normal.
Unfortunately the return of dry and warmer air will likely maintain
locally elevated concerns for wildfire activity, and especially areas of
eastern Pennsylvania and New Jersey up through all of southern New England.
Meanwhile, a much more unsettled weather pattern will be evolving across
the Western U.S. as a storm system crossing the Pacific Northwest and
Great Basin through tonight moves east into the Rockies on Friday.
Coastal/low elevation rains and higher elevation snow can be expected, and
this will include areas of the Cascades down through the northern and
central Sierra Nevada seeing snowfall accumulations. This snowfall will
overspread areas of the Great Basin and the northern Rockies going through
Friday and Friday night.
A cold front associated with this storm system will sweep through much of
the West and then eject out into the Plains on Saturday as low pressure
that will initially be strengthening over the Intermountain West on Friday
then ejects out across the northern Plains. Below average temperatures
though will be the theme across much of the West and especially over the
Southwest in the wake of this front, and some areas will see high
temperatures as much as 10 to 15 degrees below normal. However, conversely
for areas ahead of this front across the Plains, warm southerly winds will
reinforce widespread above average temperatures that by Sunday should
reach as high as 20 degrees above normal. This will include areas of
central and southern Texas where high temperatures should reach well into
the 80s, with even parts of the Lower Rio Grande Valley potentially
reaching 90 degrees.
Orrison
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
