468
FXUS61 KAKQ 040735
AFDAKQ

AREA FORECAST DISCUSSION
National Weather Service Wakefield VA
335 AM EDT Tue Jun 4 2024

.SYNOPSIS...
Unsettled weather continues through Thursday with daily chances
for scattered showers and thunderstorms. A cold front pushes
through Thursday night into Friday bringing drier conditions for
late in the week into the weekend.

&&

.NEAR TERM /UNTIL 8 AM THIS MORNING/...
As of 200 AM EDT Tuesday...

Key Message:

- Fog develops overnight.

A few light showers will continue to be possible across far S VA
and NE NC over the next few hours. Otherwise, partly cloudy
skies continue into the morning with lows in the mid-upper 60s.
Model guidance continues to show the potential for fog to
develop inland tonight into early Tue morning. Fog may be
locally dense. Additionally, some of the guidance shows the
potential for marine fog off the MD coast to reach at least into
the vicinity of Ocean City w/ light onshore flow, though
confidence in this scenario is low.

&&

.SHORT TERM /8 AM THIS MORNING THROUGH THURSDAY/...
As of 400 PM EDT Monday...

Key Messages:

- Scattered storms are possible Tuesday, Wednesday, and Thursday
  with locally heavy rainfall possible.

High pressure slides S from New England to the Mid Atlantic
coastline on Tuesday, which allows a bit of a weak backdoor cold
front to push inland. Scattered showers/storms are possible
mainly along this front/wind shift boundary as winds become E
behind it with a slight drop in T/Td. The 12z/03 HREF depicts
the best coverage across s-central VA and interior NE NC, and
then into the Piedmont, with some sea-breeze activity over the
interior MD Eastern Shore. A chance of showers and a few tstms
(20-30% PoPs) continues across SW/W portions of the FA Tuesday
night as some instability linger overnight. Upper ridging
briefly builds over the area Tuesday night-early Wednesday
before moving just to our E by late Wednesday. Meanwhile, a
rather potent upper trough/low dives SE into the Great Lakes at
the same time. Shortwave energy ahead of this trough will cross
the area late Wednesday into Wednesday night, providing enough
forcing for scattered tstms to form during the afternoon and
evening (highest PoPs west of I-95). Showers and tstms move E
Wednesday night. A few tstms may be strong with strong winds the
main threat. Additionally, WPC has the W 2/3rds of the FA under
a marginal ERO for excessive rainfall both Tuesday and
Wednesday given slow storm motions. As such, localized ponding
on roadways and urban areas is possible. Highs in the mid-upper
80s Tue and Wed with lows in the mid to upper 60s Tue night and
upper 60s to lower 70s Wed night. A chc of aftn/early evening
showers/tstms lingers into Thursday with the highest PoPs
shifting toward the coast. Forecast highs are mainly in the mid
to upper 80s.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
As of 400 PM EDT Monday...

Key Messages:

- Mainly dry, outside of a isolated afternoon showers.

- Temperatures trend slightly below normal for the weekend, but
remaining pleasant.

Sfc cold front will cross the area Thursday night into Friday.
A few lingering showers or storms are possible Thursday night,
especially across southeastern portions of the area. Aloft,
upper low will drop SE from the upper Midwest into the Great
Lakes Friday into Saturday, with a larger trough situating over
most of the eastern CONUS. While the area looks generally dry,
there could be isolated showers and storms, especially in the
afternoon Fri and Sat, with various shortwaves rotating just N
of the area. Temperatures Friday will still be on the warm side,
in the lower 80s W to the mid-upper 80s E. Dew points drop off
into the 50s for Saturday, bringing generally pleasant
conditions (outside of a brief shower, as mentioned above). Dew
points recover some later Sunday and expect isolated to
scattered showers/storms areawide (20-30% PoP) with afternoon
high temps in the low-mid 80s. Similar wx for next Monday.
Overnight lows in the 50s and 60s through the period.

&&

.AVIATION /08Z TUESDAY THROUGH SATURDAY/...
As of 200 AM EDT Tuesday...

A few light showers will continue to be possible across far S VA
and NE NC over the next few hours. However, these showers will
likely remain away from the local terminals. Otherwise, SCT
skies due to a combination of stratus and cirrus will continue
into the morning with primarily VFR CIGs. Model guidance
continues to show the potential for fog to develop inland tonight
into early Tue morning with IFR/MVFR VIS possible. RIC has the
best chance for IFR VIS (~1-2 SM), however, fog will also be
possible at ORF/PHF/SBY. Additionally, some model guidance
suggests that the fog will be accompanied by IFR/LIFR CIGs. This
aspect is less certain so have refrained from introducing IFR
CIGs in the tafs at this time. The fog lifts by ~12z Tue with a
return to VFR conditions under partly sunny skies. CU develop by
late morning into the afternoon with mainly 4000-6000 ft CIGs
(lower with areas of convection). By the afternoon, scattered
thunderstorms are expected to develop and may impact any of the
local terminals. Heavy rain with IFR VIS and gusty winds will
be possible in any storms. Storms taper off by the evening with
additional showers or storms possible overnight Tue night. Winds
were light and variable/calm tonight. Expect winds to remain
light on Tue, becoming E 4-8 kt by late morning into the
afternoon as a weak backdoor cold front pushes inland. Winds
return to light and variable Tue night.

Additional afternoon/evening showers/storms are possible
Wednesday and Thursday (with Wednesday likely seeing the
highest coverage of storms). Mainly dry/VFR Friday into
Saturday.

&&

.MARINE...
As of 335 AM EDT Tuesday...

Key messages:

- Sub-SCA conditions through Wednesday, though becoming breezy late
in the day.

- Marginal SCA conditions possible late Wednesday night into early
Thursday ahead of a cold front.

- Daily chances for showers/thunderstorms through Thursday,
primarily in the afternoons and evenings.


High pressure is centered well offshore this morning. Winds are
light with most obs showing winds out of the west and around 5kt.
Later this morning, a weak backdoor cold front will drop across the
region, turning winds to the east by the afternoon. Winds slightly
increase closer to ~10kt through the evening. Onshore flow continues
overnight at 5-10kt, taking on more of a southerly component by Wed
morning. On Wednesday, the pressure gradient gradually increases
between high pressure offshore and an approaching cold front.
Southerly winds will gradually increase through the day as a result.
Winds will be up to 10-15kt by the afternoon, then 15-20kt late in
the evening. SCAs will likely be needed late Wednesday evening
through Thursday morning with gusts over 20kt expected in the bay
and gusts approaching 25kt over coastal waters. SSW winds diminish
Thursday and gradually turn to the west through Friday.

Early morning buoy obs indicate seas of 1-2ft and waves 1ft or less.
Given light winds, this will remain the case through the day today.
Waves in the bay and lower James increase to ~2ft as winds increase
Wed. As winds continue to increase Wednesday night, seas build to 3-
4ft and waves to 2-3ft. Seas fall back to 2-3ft by Thurs afternoon
and waves down to 1-2ft. Rip current risk is low for all area
beaches today and Wednesday. The risk for northern beaches
(Assateague to Ocean City) increases to moderate for Thursday.

&&

.TIDES/COASTAL FLOODING...
As of 335 AM EDT Monday...

Some shallow / nuisance coastal flooding is possible during the
higher high tide cycles Tuesday night/early Wednesday morning
and again Thursday, mostly for the bay side of the MD Eastern
Shore. Most tidal sites may see very shallow flooding near the
waterfront, but locations in the northern Bay, such as Bishops
Head, could touch minor flood stage as south winds increase
late Wednesday and Thursday. The following high tide cycle
Wednesday night/early Thursday morning may bring similar impacts
as well.

&&

.AKQ WATCHES/WARNINGS/ADVISORIES...
MD...None.
NC...None.
VA...None.
MARINE...None.

&&

$$

SYNOPSIS...AJZ/RMM
NEAR TERM...LKB/RMM
SHORT TERM...AJZ/RMM
LONG TERM...SW
AVIATION...RMM
MARINE...AM
TIDES/COASTAL FLOODING...