Emmalane, Georgia Weather Forecast Discussion

316
FXUS62 KCHS 072258
AFDCHS
Area Forecast Discussion
National Weather Service Charleston SC
658 PM EDT Sun Sep 7 2025
.SYNOPSIS...
A cold front will push south through the area tonight, then
stall offshore through the middle of the week. High pressure
will prevail through the end of the week.
&&
.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
Satellite and surface observations at 07/2245z show the cold
front was situated across the Southern Midlands into the Pee Dee
and moving steadily south.The best rain chances will continue to
focus inland with the passage of the inland moving sea
breeze/outflow hybrid boundary. Rain chances should steadily end
form the north to south through the night as the front pushes
south. There remains a risk for some degree of fresh water
flooding for the next few hours.
Tonight: Ridging high pressure will surge across the forecast
area. Northeast winds should gradually strength through the
night, with areas developing gusts around 20 mph by late
tonight. Low stratus should also increase across the region late
tonight. Low temperatures are forecast to range from the mid
60s across Lake Moultrie to the mid to upper 60s across the rest
of the forecast area. Some areas across coastal SE GA may see
lows remain in the 70s.
&&
.SHORT TERM /6 AM MONDAY MORNING THROUGH WEDNESDAY/...
Broad troughing will prevail aloft through mid week while high
pressure builds into the region from the north and a frontal
boundary remains stalled to the south. This pattern will yield a
cold air damming (CAD) set up for both Monday and Tuesday. Low
clouds in the morning and gusty northeasterly winds will limit high
temperatures to the upper 70s to low 80s. Due to the stalled frontal
boundary to the south, precipitation chances will be limited to the
coastal counties. However, the high pressure inland may be strong
enough to keep any showers offshore. Wednesday the high pressure
will begin to weaken inland and the stalled boundary is forecast to
wash out. High temperatures will be able to reach into the mid 80s,
with only a slight chance of showers/tstorms along the coastal
counties.
&&
.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
Troughing will remain the dominant synoptic feature aloft through
the end of the week and into the weekend, with high pressure
dominating at the surface. Precipitation chances are limited to the
coastline, with a dry forecast inland. Temperatures will remain
slightly below normal, given the continued NE flow and increased
cloud cover.
&&
.AVIATION /00Z MONDAY THROUGH FRIDAY/...
08/00z TAF Discussion:
KCHS/KJZI/KSAV: Tstms have largely ended at all three terminals
with only light rain expected to linger for another 1-2 hours. A
cold front will push through the terminals later this evening
and overnight. This will usher in a quick transition to wedge
conditions with low stratus and north to northeast winds
prevailing. Expect IFR cigs to reach KCHS and KJZI by 07z and
KSAV by 09z. Widespread IFR cigs should persist through mid-late
morning before improving to VFR. Gusty winds are expected by
mid-morning with gusts nearing 20 kt.
Extended Aviation Outlook: Flight restrictions are possible in
afternoon showers/tstorms through mid week.
&&
.MARINE...
Tonight: Winds will remain ESE between 5 to 10 kts ahead of the
front. As the front reaches the coast late this afternoon/evening,
some storms may push over the nearshore waters, Special Marine
Warnings are possible. Late tonight, high pressure will surge
across the marine zones, turning winds from the NE and
strengthening. Wind gusts around 25 kts may become common across the
Atlantic waters during the pre-dawn hours.
Extended Marine: High pressure will dominate at the surface across
the land zones while a stalled frontal boundary is positioned just
to the south of the region. This will create a pinched pressure
gradient between the high pressure and the stalled front. Small
Craft Advisories will be in effect for all marine zones, including
the Charleston Harbor, beginning Monday morning for 25 knot wind
gusts and 6 ft seas (1 to 2 ft waves in the Charleston Harbor).
Conditions across the marine zones will begin to improve on
Wednesday as the high pressure begins to weaken.
Rip Currents: A combination of gusty northeast winds, astronomical
factors, and increasing swell period will yield a Moderate Risk of
rip currents on Monday and a High Risk on Tuesday.
&&
.TIDES/COASTAL FLOODING...
Based on recent tide trends from the Charleston Harbor gage,
high tide is expected to peak near 7.1 ft MLLW at 8:30 PM this
evening. A Coastal Flood Advisory has been issued for
Charleston and coastal Colleton Counties from 7 PM until 10 PM.
Astronomical tide levels will remain high through the middle of the
week due to a full moon Sunday and lunar perigee (9/10). A
surge of northeast winds along the coast Monday through midweek
is expected to produce increased tidal departures. This will
result in minor to moderate coastal flooding at the Charleston
tide gage. Minor coastal flooding is possible at the Fort
Pulaski tide gauge beginning Monday evening.
&&
.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...Coastal Flood Advisory until 10 PM EDT this evening for SCZ049-
     050.
MARINE...Small Craft Advisory from noon Monday to 9 PM EDT Tuesday for
     AMZ330.
     Small Craft Advisory from 6 AM Monday to 2 PM EDT Wednesday
     for AMZ350.
     Small Craft Advisory from 6 AM Monday to 6 AM EDT Wednesday
     for AMZ352-354.
     Small Craft Advisory from 6 AM Monday to 8 PM EDT Wednesday
     for AMZ374.
&&
$$

NWS CHS Office Area Forecast Discussion