Area Forecast Discussion
Issued by NWS Sterling, VA

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FXUS61 KLWX 251910
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
310 PM EDT Mon Sep 25 2017

.SYNOPSIS...High pressure will slowly weaken its grip over the
area Tuesday and Wednesday as Hurricane Maria moves northward
through the western Atlantic. A cold front will move through
Thursday, bringing more seasonable temperatures for the end of
the week. Little if any rain is expected.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...Ridge of high pressure
will hold through tonight although it will be weakening. Patchy
late night fog is possible again overnight, otherwise mostly
clear skies are expected.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/...

Clouds associated with Hurricane Maria will spread
northwestward early Tue morning and as far west as the Blue
Ridge mountains. There could be a few showers in southern MD,
otherwise thickening clouds.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...

Conditions will be dry for Thursday into Friday with cold front
to our east and high pressure building from the west over our
area. In the meantime, Hurricane Maria will be moving away from
the US east coast.

An upper trough could bring some showers over our area late Friday
into Saturday, but dry conditions return for the rest of the long
term period with high pressure building in over our region. High
temperatures will be near normal around 70s or 80s... colder at
higher elevations.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...

Except for some patchy late night fog, VFR conditions are
expected.

VFR conditions expected Thursday into Saturday. Some
showers possible Friday night.

&&

.MARINE...Winds will strengthen tonight through Wednesday as
pressure gradient tightens in response to approaching Hurricane
Maria. A cold front will move through the area early Thu with
gales possible. Winds will diminish Thu night.

Small craft advisory expected Thursday into Friday for some
zones of our waters. Lighter wind gusts expected for Saturday.

&&

.TIDES/COASTAL FLOODING...

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...Coastal Flood Advisory from 6 PM to 8 PM EDT this evening for
     MDZ017.
VA...None.
WV...None.
MARINE...Small Craft Advisory from 7 AM to 6 PM EDT Tuesday for ANZ533-
     534-537-541>543.

&&

$$
SYNOPSIS...LFR
NEAR TERM...LFR
SHORT TERM...LFR
LONG TERM...IMR
AVIATION...IMR/LFR
MARINE...IMR/LFR/DFH
TIDES/COASTAL FLOODING...LFR


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