922
FXUS62 KCHS 290401
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
1201 AM EDT Wed May 29 2024

.SYNOPSIS...
A cold front will shift offshore tonight. High pressure will
build in from the west mid to late week, passing overhead and
then offshore over the weekend.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
The stationary front meandering near the coast is showing signs
of start to push offshore. The front should be off the coast by
daybreak with drier air finally reaching the beaches. Lows from
the lower 60s well inland to the mid 70s at the beaches still
look on track.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/...
Zonal flow aloft prevails Wednesday into Thursday before an H5
shortwave dips toward the area from the north late Thursday into
Friday. At the surface, troughing persists offshore as high
pressure centered over the Great Lakes builds in from the west
Wednesday and Thursday. A very weak front will cross the area
Friday as the high shifts more over the Northeast and ridges
down the coast. Expect dry and warm conditions to prevail
Wednesday and Thursday under the strong subsidence aloft.
Thursday night and Friday are less certain as modest moisture
pooling ahead of the approaching front and modest lift ahead of
the approaching shortwave could coincide just enough to initiate
some showers and storms sometime Friday morning through
afternoon. Have expanded the slight chance POPs some Friday,
mainly near the coast, but overall expect moisture to be too
limited for much coverage, and mainly dry conditions still on
tap for Friday with temps trending closer to normal.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
Surface high builds in stronger Saturday and Sunday, then
pushes offshore early next week as a series of weak disturbances
possibly pass through. The weekend is trending drier with very
limited low level moisture available, then have trended toward a
more summerlike pattern for early next week, with storm chances
mainly along and inland of the sea breeze following a diurnal
pattern. Temperatures will be within a few degrees of climo
through the period.

&&

.AVIATION /04Z WEDNESDAY THROUGH SUNDAY/...
29/06z TAF Discussion:
KCHS/KJZI/KSAV: VFR through 30/06z.

Extended Aviation Outlook: VFR.

&&

.MARINE...
Tonight: Southwest winds will veer to the west overnight as the
cold front finally starts to push east. Winds will remain less
than 15 kt with seas 1-3 ft.

Wednesday through Sunday: No marine concerns anticipated
midweek through the weekend with light to moderate winds
prevailing as high pressure builds in from the west through
Friday, shifting over the Southeast coast for the weekend.
Minimal income swell will keep seas around 2 ft or less through
Friday, with seas increasing to 2-4 ft over the weekend with the
introduction of medium period northeast swell.

&&

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

&&

$$