Baltimore, Maryland 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

843
FXUS61 KLWX 180000
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
800 PM EDT Thu Apr 17 2025

.SYNOPSIS...
High pressure will shift offshore Friday and Saturday. A warm
front will lift through the region on Friday ahead of a cold
front moving through Saturday night through Sunday. A low
pressure system will move to the north early next week with
high pressure briefly returning midweek.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Cloud cover is increasing this evening as a warm front
approaches from the southwest. High clouds will become thicker
overnight before thinning out by around daybreak Friday.

Overnight low temperatures will not be quite as cold as last
night, dipping into the 40s, but this is still several degrees
below normal for this time of year.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/...
As surface high pressure shifts offshore, return flow ushers in warm
air from the south and increased moisture. A warm front is forecast
to lift through the forecast area on Friday as a cold front
approaches from the west.  Gradually warming temperatures can be
expected Friday and Saturday, along with increased cloud cover. High
temperatures on Friday will be in the 70s for most with those at
higher elevations staying in the 60s. On Saturday, high temperatures
will be in the 80s for most with those at higher elevations staying
in the 70s.

In addition to gradually warming temperatures, a low pressure system
will track NE from the Great Lakes on Saturday with the associated
cold front set to approach the forecast area from the Ohio
River Valley. As the cold front approaches, precipitation
chances in the northwestern portions of the forecast area
increase.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
Deep ridging just off the Southeast U.S. coast on Sunday will drift
offshore into the start of next week. The strength of this ridge
likely keeps an approaching cold front well to our north, though a
weak disturbance aloft could result in a few showers west of the
Blue Ridge Sunday afternoon. Otherwise, a mostly dry and warm end to
the weekend as highs reach the mid 70s to low 80s.

A strong upper trough and associated surface low pressure will move
across the Midwest/Upper Great Lakes on Monday. As the low pressure
system pulls away into Canada, the attached cold front is forecast
to move across the Mid-Atlantic Monday afternoon into Monday night.
Given weak forcing and lingering dry air, rain chances look to be on
the lower side at this time (30-40pct). High pressure builds in
quickly behind the front Tuesday into Wednesday, likely bringing
another few days of dry conditions.

Temperatures are forecast to be above normal into next week. Highs
reach the mid to upper 70s each day, with 60s in the mountains, and
around 70F along the MD/PA border. Overnight lows mostly in the 50s,
with 40s in the mountains.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
VFR conditions are expected through Saturday as high pressure
shifts offshore. Winds become light and variable tonight before
shifting to southerly on Friday, gusting 15 to 25 knots in the
afternoon. LLWS is possible Fri night as an LLJ pivots overhead.
Winds diminish slightly on Saturday, blowing out of the
southwest at around 10 knots.

VFR conditions are likely Sunday into Monday. Scattered showers
possible Monday evening into Monday night, but coverage and
intensity look to be low enough to prevent any significant
disruption to the local terminals.

&&

.MARINE...
A few southerly wind gusts to 15-20 knots are possible overnight
mainly over the main channel of the Chesapeake Bay as high
pressure moves offshore. Winds increase further Friday morning
due to southerly channeling with a Small Craft Advisory in
effect beginning at 10 AM. Southerly winds blowing between 15
and 20 knots with gusts up to 25 knots are expected. SCA
criteria condtions likely persist through early Saturday evening.

Favorable marine conditions Sunday into the start of next week as
high pressure south of the area remains in control. Winds are
expected to shift from north to east, then southeast on Monday, all
at 5-10 knots. A slight increase in winds is possible Monday night
as gusts increase to around 15 knots, especially in the middle
Chesapeake Bay.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory from 10 AM Friday to 8 PM EDT Saturday
     for ANZ530>543.

&&

$$

SYNOPSIS...AVS/DHOF
NEAR TERM...AVS/DHOF
SHORT TERM...AVS
LONG TERM...KRR
AVIATION...AVS/DHOF/KRR
MARINE...AVS/DHOF/KRR