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000
FXUS62 KCHS 260401
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
1201 AM EDT Fri Apr 26 2024

.SYNOPSIS...
High pressure will build into the region through early next
week. A weak cold front could approach around the middle of
next week.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Quiet conditions will linger tonight. A large area of clouds
with bases of 1500-2000 ft over portions of coastal North
Carolina into parts of the Pee Dee will drift southwest and
penetrate into parts of the Charleston Tri-County into interior
Southeast South Carolina through daybreak. This will result in a
period of mostly cloudy skies. Elsewhere, mostly clear to
partly cloudy skies will prevail. Lows from the mid-upper 50s
inland to the mid-upper 60s at the beaches, warmest along the
Georgia beaches, look on track.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/...
Aloft, a large omega block will set up with amplifying troughs
over the Western Atlantic and Western U.S. A ridge axis will
settle over the Eastern Seaboard. This pattern favors quiet
weather with little to no forcing. An isolated shower is
possible mainly Friday along the southeast Georgia coast or far
inland, where weak llvl convergence and presence of mid-level
moisture co-exist. However, no mentionable POPs have been
included in the forecast due to dry lower levels. Otherwise
partly cloudy skies will prevail nearly each day.

High temperatures remain within a few degrees of normal,
generally in the upper 70s to lower 80s each day through the
weekend. Lows both Friday and Saturday night will range from the
upper 50s inland to the mid 60s along the immediate coast.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
The pattern remains largely unchanged into early next week with
the omega block and deep high pressure in place. This favors
increasing temperatures and virtually zero rain chances Monday
and Tuesday. The upper ridge axis will begin to shift offshore
Tuesday as a weakening trough and accompanying weak cold front
moves toward the eastern U.S. The front will be positioned
inland late Tuesday/early Wednesday, however guidance depicts a
weak or stalled boundary at that point. Showers will remain
dependent on how quickly the upper trough driving the front
lifts north. The forecast currently mentions slight chance POPs
Wednesday afternoon which are limited to the inland locations.
Temperatures will start the period in the low 80s and will rise
to the upper 80s/near 90F by the middle of the next week.

&&

.AVIATION /04Z FRIDAY THROUGH TUESDAY/...
26/06z TAF Discussion:
KCHS/KJZI: An area of MVFR cigs moving across coastal North
Carolina and into the Pee Dee is on target to impact both the
Charleston terminals by daybreak. While the bulk of these clouds
look to move west of KCHS, their proximity to terminal
necessitates the introduction of prevailing MVFR cigs, roughly
09-13z. For KJZI, the terminal will be on the southern periphery
of these clouds, so a TEMPO group for MVFR cigs was highlighted
for same time period. MVFR cigs should mix out to VFR by 14z
and persist through 27/06z Saturday. Gusty winds with gusts
20-22 kt will impact both terminals as the sea breeze moves
inland this afternoon.

KSAV: VFR through 267/06z Saturday. An area of MVFR cigs should
remain north of the terminal this morning. Wind gusts near 20 kt
will be common this afternoon as the sea breeze moves inland.

Extended Aviation Outlook: Prevailing VFR.

&&

.MARINE...
Tonight: Surface high pressure will build across the eastern
Great Lakes and down into the southeast. Easterly winds will
slowly increase overnight in response, particularly across the
South Carolina coastal waters. Speeds will average 10 kt from
Edisto Beach and points south with 10-15 kt over the South
Santee-Edisto Beach out 20 NM leg. Seas will average 2-4 ft.

Friday through Tuesday: Winds will shift NE Friday and then out
of the east Saturday as high pressure builds from the north.
Brief surge will bring winds to the 15-20 kt range Friday
afternoon/evening. Seas in turn will build to 3-5 ft across the
nearshore waters out 20 nm and 5-6 feet across the outer Georgia
waters from 20-60 nm. A Small Craft Advisory could be needed
for the offshore Georgia waters overnight Friday into Saturday.
Winds around 10 kt or less will veer more southerly, and seas
will decrease to 2- 4 ft Monday into Tuesday.

Rip Currents: Persistent onshore flow combined with moderate
swell energy will enhance the rip current risk this weekend.
There is currently a Moderate risk of rip currents for all area
beaches Saturday.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.
MARINE...None.

&&

$$