Savannah, Georgia 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

750
FXUS62 KCHS 111440
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
1040 AM EDT Fri Apr 11 2025

.SYNOPSIS...
A cold front will move through our area today, bringing some
showers. High pressure then returns for the weekend and the
first part of next week, keeping conditions dry. A dry cold
front should move through on Tuesday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Late this morning: Surface analysis shows that the first front
is along or just off the coast while the next is situated
upstream across east TN and will track into the southern
Appalachians this morning. Satellite imagery shows that morning
low clouds in the wake of the early morning convection have
clear out while a solid cumulus field has developed across
Colleton county and the Tri-County region. Elsewhere skies are
clear and we should see clearing of the cumulus field over the
next couple of hours as well. The main forecast challenge for
today centers on the potential for convection later today. Model
guidance suggests that the forecast area should remain
convection-free for most of the day as convective development is
focused upstream along the aforementioned front. Most of the
recent hi-res model runs now keep the forecast area almost
completely dry. The issue is that with westerly flow this
morning and into the afternoon, dewpoints should mix out into
the low to mid 40s resulting in high LCL`s in the presence of
dewpoint depressions approaching 30 degrees. However, this will
be countered somewhat by 500 mb temps around -22C supporting
some destabilization aloft. Overall, it does not appear to be a
particularly active day with just a few showers and/or
thunderstorms possible in the late afternoon and early evening.
The best chance for an isolated shower/thunderstorm looks to be
across southeast SC, mainly the Charleston Tri-County region. If
something can develop, there is a bit of a conditional severe
threat thanks to the presence of ~40 knots of mid-level flow.
West-northwest winds will be breezy today, with gusts as high as
20-25 mph at times. Temperatures are forecast to be right around
normal, mid to upper 70s.

Tonight: After the passage of the cold front, high pressure
will begin to build into the region from the west and skies will
remain clear. With northwest winds pushing cooler air into the
region, lows will dip into the mid to upper 40s in the interior
counties and low to mid 50s along the coast.

&&

.SHORT TERM /SATURDAY THROUGH MONDAY/...
A mid-level trough will push off the East Coast on Saturday
with ridging building into the southeastern states into early
next week. At the surface high pressure will initially build
into the region from the west, with the center of high pressure
shifting eastward into early next week. Generally quiet
conditions are forecast this weekend and into Monday with no
rain in the forecast and high temperatures Saturday and Sunday
in the low 70s. As the center of high pressure comes closer to
the local forecast area high temperatures on Monday are forecast
to reach into the low to mid 80s. Overnight lows are forecast
to be a few degrees below normal, due to light to calm winds and
clear skies, with lows in the 40s inland and low 50s along the
coastline.

&&

.LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...
A mid-level trough will swing across the East Coast on Tuesday
as a dry cold front pushes through the forecast area at the
surface. Thereafter, high pressure will build back into the
region both aloft and at the surface, yielding a rain-free
forecast. Temperatures on Tuesday are forecast to reach into the
low to mid 80s. The aforementioned cold front will then usher a
cooler airmass into the region, with temperatures on Wednesday
only reaching into the low to mid 70s.

&&

.AVIATION /15Z FRIDAY THROUGH TUESDAY/...
At 14z, an MVFR stratocumulus layer has developed around KCHS
and KJZI. MVFR ceilings will be possible through about 16z and
then VFR conditions will return.  As temperatures warm and
mixing increase to 6-8 kft, gusts around 20 kts should develop
across the terminals later this morning and remaining through
late this afternoon. High resolution guidance indicates that
isolated showers and thunderstorms will develop along and ahead
of an approaching front late this afternoon and evening.
However, the terminals should remain dry. In the wake of a cold
front, winds should veer from the NW between 5 to 10 kts.

Extended Aviation Outlook: Prevailing VFR.

&&

.MARINE...
Today: Expect southwesterly winds to remain gusty throughout
the afternoon. A cold front will pass over the coastal waters
this evening, a possible shower could develop with this. Winds
will shift northwesterly behind the front and stay gusty. Seas
will range from 3-4 ft. No Small Craft Advisories are expected.

Saturday through Wednesday: High pressure will prevail over the
waters through the weekend, with a dry cold front pushing
through on Tuesday. High pressure will then return mid-week.
Sub-Small Craft Advisory criteria is forecast through the
period, however gusts on Tuesday could approach 25 knots in
association with the passing cold front.

&&

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

&&

$$

NEAR TERM...BSH/Dennis/NED
SHORT TERM...CPM
LONG TERM...CPM
AVIATION...CPM/Dennis/NED
MARINE...CPM/Dennis