Glen Burnie, Maryland 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

598
FXUS61 KLWX 111853
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
253 PM EDT Fri Apr 11 2025

.SYNOPSIS...
A low pressure system slowly moves north from the Carolinas before
exiting off the Virginia coast overnight into Saturday. Surface high
pressure builds overhead from the west Saturday night through
Sunday. Another low pressure system and associated fronts impact the
region early next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
An area of low pressure is slowly moving north from the Carolinas as
an upper level low pivots overhead. The surface low will exit off
the coast of Virginia tonight, bringing periods of heavy rain
throughout the afternoon and into the overnight period.
Currently, there is a sharp precipitation gradient over the area
aligned over the I-95 corridor. Precipitation is expected to
spread further west over the next couple of hours as the low
pressure system shifts north and moisture raps around the area.

WPC has the eastern portions of the forecast area in a marginal
risk for excessive rain. The heaviest corridor of precipitation
will likely occur east of I-95 through southern MD with 1-2"
forecast and locally higher amounts likely. The latest CAMs
indicate the potential of 2-3" in southern MD, where 1-1.5" have
been observed as of 2:30PM. While rainfall across the forecast
area will largely be beneficial due to preceding drought
conditions, those along and east of I-95 have an increased risk
of isolated instances of flooding. Within this area, urban zones
and areas prone to flooding during heavy precipitation will be
the most at risk.

Precipitation chances decrease overnight from southwest to
northeast as the low pressure system exits offshore. Overnight
low temperatures will be in the mid 30s to low 40s for most. As
temperatures fall, recent CAMs have been hinting at a brief
period of snow showers along the highest elevations and in
northern MD. Little to no accumulation is expected, due to warm
surface temperatures. Will continue to monitor this potential
threat.

&&

.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
The aforementioned low pressure system will continue exiting off the
east coast on Saturday as high pressure builds in from the Ohio
River Valley. Isolated to scattered showers and increased cloud
cover linger throughout the day as an upper level low ushers in
moisture aloft. High temperatures will be in the 40s to mid 50s
across the area with those along the highest elevations staying in
the 30s. Isolated showers continue overnight with low temperatures
in the 30s to 40s.

Conditions dry out areawide on Sunday as surface high pressure
continues to build overhead. Cloud cover decreases throughout the
day with temperatures rising into the 50s to mid 60s. Isolated
shower are possible overnight along the Alleghenies as a low
pressure system tracks north of the Great Lakes and the associated
warm front approaches the area. Otherwise, dry conditions continue
overnight with low temperatures in the 40s for most.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
Monday will start with shortwave ridging overhead and surface high
pressure stretched across Florida. This will result in what will
likely be the warmest day of the week with many areas pushing into
the 70s. Meanwhile a trough and associated low pressure system will
be moving into the upper Great Lakes. During the afternoon,
convection is expected to develop across the Ohio Valley and lower
Great Lakes ahead of this system, aided by strong shear and steep
mid level lapse rates, despite otherwise modest thermodynamics. Most
guidances suggests this activity won`t reach the local area until
near or after sunset. By that time, waning instability, lessening
forcing, and a westerly downslope wind component will likely cause
precipitation to break up crossing the mountains. However, will have
to monitor the potential for some stronger storms to move into the
northwestern part of the CWA.

While the primary cold front will move through early Tuesday
morning, the trough axis aloft is lagging. Upslope rain showers will
continue at a minimum, but a few showers can`t be ruled out
elsewhere. It will also become windy behind the front, with gusts of
30-40 mph possible. Mountainous locations could approach Wind
Advisory criteria. While cooler than Monday, the initial westerly
flow will limit temperature falls, with high mostly in the 60s. As
cold advection continues, any lingering upslope precipitation will
change over to snow Tuesday night. A dry secondary front will pass
through Wednesday, knocking temperatures back below normal and
maintaining gusty winds.

Surface high pressure will likely build in Wednesday night into
Thursday. Wednesday night will likely feature the coldest
temperatures, though subfreezing values may be limited to the higher
elevations. Temperatures rebound slightly for Thursday. Another
dynamic low will move into the Great Lakes toward the end of the
week. Rain chances will steadily increase moving into Friday.

&&

.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
Sub-VFR conditions continue across all terminals through the
overnight as stratiform rain impacts the area. Moderate rain
across the region will bring IFR ceilings and visiblities with
LIFR possible at times. Northeast winds are expected through
this evening, gusting 15 to 20 knots. Precipitation moves out of
the area overnight and into Saturday morning, with conditions
gradually improving throughout the day. VFR conditions are
expected to return Saturday afternoon and into the evening.
North/northwest winds gust around 15 knots in the afternoon.
High pressure builds over the region on Sunday, with VFR
conditions and light winds expected.

VFR conditions likely prevail Monday through Wednesday, although
there is a low chance of rain showers Monday night...and possibly a
thunderstorm at MRB. Winds will increase behind a cold front Tuesday
morning. West winds gusting 20-30 kt are possible through the day. A
secondary front will renew northwesterly gusts of 20-30 kt on
Wednesday.

&&

.MARINE...
A Small Craft Advisory is in effect for all waters through
Saturday evening. Small Craft Advisory criteria winds continue
through Sunday morning, with the current advisory likely being
extended. Northeast winds 10 to 20 knots with gusts up to 30
knots are expected.

Winds diminish on Sunday, with sub-SCA winds expected. Winds
will be out of the northwest, blowing 5 to 10 knots.

South winds will gradually increase Monday and Monday night,
potentially nearing advisory conditions along the bay Monday night.
Stronger winds will arrive behind a cold front crossing early
Tuesday. SCAs are likely, and gusts could be near gale force.
Advisory conditions will likely continue into Wednesday behind a
secondary front.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...Small Craft Advisory until 6 PM EDT Saturday for MDZ008.
VA...None.
WV...None.
MARINE...Small Craft Advisory until 6 PM EDT Saturday for ANZ530>543.

&&

$$

SYNOPSIS...AVS
NEAR TERM...AVS
SHORT TERM...AVS
LONG TERM...ADS
AVIATION...ADS/AVS
MARINE...ADS/AVS