Castleton, Virginia Weather Forecast Discussion

699
FXUS61 KLWX 101826
AFDLWX
Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
226 PM EDT Wed Sep 10 2025
.SYNOPSIS...
High pressure will remain to our north late this
afternoon into tonight as a wave of low pressure passes offshore to
the southeast. A dry front will dissipate as it approaches on
Thursday, then another area of high pressure will drift toward New
England this weekend, resulting in continued dry conditions.
&&
.NEAR TERM /THROUGH TONIGHT/...
Low pressure off of the mid-Atlantic Coast will send moisture and
areas of drizzle inland into much of our region late this afternoon
into tonight. Locations that do not encounter drizzle will likely
have low clouds. Patchy fog will evolve overnight in some low
valleys in western Virginia and eastern West Virginia. Cool
temperatures tonight with lows dropping into the 50s widespread.
There could be some 40s over the central Shenandoah Valley and a few
60s along the Chesapeake shoreline.
&&
.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
High pressure returns Thursday and Friday with mostly sunny skies
and temperatures returning closer to average for this time of year.
Highs will be in the upper 70s to lower 80s. Winds should remain
light and out of the north to northeast during this time too.
Expect some patchy fog to develop in the sheltered valleys and areas
that favor radiational cooling overnight. Low temperatures will
generally be in the 50s. Lower 60s along the waters and in the
metros.
&&
.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
One cutoff trough will be departing the area Saturday afternoon to
be replaced by a deeper/stronger one early next week. This will push
a cold front through the area early Monday and reinforce the cool wx
pattern that we have seen since early August. Unfortunately, the
chance of any rainfall with this front looks very low with any
rainfall in the order of a few hundredths. Ridging sfc and aloft
builds in for much of next week supporting continued dry/fair
weather.
&&
.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
MVFR conditions in areas of drizzle and patchy fog. Otherwise, VFR
conditions through tonight. North to northeast gusting to 15 to 20
knots through early evening.
VFR conditions return for all areas mid-morning Thursday through
Friday night as high pressure builds into the region. Winds north to
northeast becoming southeast Friday night.
No significant weather is expected Saturday into Sunday.
&&
.MARINE...
Small craft advisories remain in effect for the Tidal Potomac and
Chesapeake Bay through early evening. Winds north to northeast 5 to
15 knots. No marine hazards Thursday through Friday night. Winds
north to northeast 5 to 10 knots gusts to 15 knots.
SCA condtions are possible Sunday afternoon into early next
week in northerly flow on the backside of a departing area of
low pressure.
&&
.TIDES/COASTAL FLOODING...
Due to low pressure moving off the coast and the recent full
moon, tides will remain elevated in the coming days. NE winds
during the middle of the week may assist in locking in higher
water levels and pushing the water toward the western shore.
Alexandria, Annapolis, and Dahlgren are most likely to reach
minor flood stage, but some other locations may be close.
Additional minor flooding could occasionally be an issue
through the end of the week with no real pattern change in
sight.
&&
.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...Small Craft Advisory until 5 PM EDT this afternoon for MDZ008.
VA...None.
WV...None.
MARINE...Small Craft Advisory until 5 PM EDT this afternoon for
     ANZ530>534-537>543.
&&
$$
SYNOPSIS...KLW
NEAR TERM...KLW
SHORT TERM...KLW
LONG TERM...LFR
AVIATION...LFR/KLW
MARINE...LFR/KLW
TIDES/COASTAL FLOODING...LWX

NWS LWX Office Area Forecast Discussion