498
FXUS62 KCHS 280625
AFDCHS
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
225 AM EDT MON SEP 28 2026
WHAT HAS CHANGED
ALL SECTIONS HAVE BEEN UPDATED.
KEY MESSAGES
- 1) THE COASTAL FLOOD RISK WILL LINGER THROUGH MID-WEEK.
- 2) RISING TEMPERATURES INTO MID WEEK, REMAINING ABOVE NORMAL
THROUGH THE REMAINDER OF THE WEEK.
DISCUSSION
KEY MESSAGE 1: THE COASTAL FLOOD RISK WILL LINGER THROUGH MID-
WEEK.
COASTAL FLOODING CONCERNS CONTINUE ACROSS THE REGION HEADING INTO
THE NEW WEEK IN THE WAKE OF A DEPARTING NOR'EASTER. WHILE WIND
DIRECTION MAY BE LESS FAVORABLE THAN THIS WEEKEND, STILL EXPECT
ASTRO TIDES TO REMAIN ELEVATED GIVEN THE RECENT FULL MOON. THIS WILL
RESULT MINOR (TO POSSIBLY MODERATE) COASTAL FLOODING WITH EACH HIGH
TIDE CYCLE (ESPECIALLY FOR THE CHARLESTON HARBOR).
CHARLESTON HARBOR: WITH THE ONGOING ENVIRONMENTAL CONDITIONS AND
RECENTLY OBSERVED DEPARTURES, TIDAL LEVELS COULD REACH ~7.3 FT MLLW
DURING THIS MORNING'S HIGH TIDE (925 AM). THUS, A COASTAL FLOOD
ADVISORY WILL BE IN EFFECT FOR CHARLESTON AND COASTAL COLLETON
COUNTIES FROM 7 AM UNTIL 12 PM.
FORT PULASKI: WHILE TIDES WILL REMAIN ELEVATED AT FT PULASKI, THEY
SHOULD REMAIN BELOW MINOR FLOODING, PEAKING AROUND 9 TO 9.1 FT MLLW
THROUGH MID-WEEK.
KEY MESSAGE 2: RISING TEMPERATURES INTO MID WEEK, REMAINING
ABOVE NORMAL THROUGH THE REMAINDER OF THE WEEK.
UPPER LEVEL RIDGING WILL BUILD INTO THE REGION THROUGH MID-WEEK.
TODAY WILL BE SLIGHTLY WARMER THAN THE WEEKEND WITH HIGHS IN THE
MID-80S. CLEAR SKIES AND LIGHT TO CALM WINDS WILL LIKELY RESULT
IN RADIATIONAL COOLING TONIGHT WITH LOWS IN THE UPPER 50S
INLAND AND LOWER 60S ACROSS THE COASTAL COUNTIES. AS HIGH
PRESSURE BUILDS OVER THE REGION THIS WEEK THE FORECAST WILL
LIKELY REMAIN RAIN-FREE AND FEATURE A WARMING TREND IN
TEMPERATURES. THE NEXT CHANCE OF RAIN WILL BE LATE WEEK AND INTO
THE WEEKEND.
AVIATION /06Z MONDAY THROUGH FRIDAY/
VFR CONDITIONS ARE EXPECTED TO PREVAIL AT CHS/JZI/SAV TERMINALS
THROUGH 12Z TUESDAY.
EXTENDED AVIATION OUTLOOK: VFR.
MARINE
THROUGH FRIDAY: NO MARINE CONCERNS EXPECTED AS SURFACE HIGH
PRESSURE BECOMES THE DOMINANT FEATURE ACROSS THE LOCAL WATERS.
AS A HIGH PRESSURE SHIFTS NORTHEASTWARDS OF THE AREA ON TUESDAY,
A WEAK COASTAL SEA BREEZE WILL DEVELOP IN THE AFTERNOON HOURS,
LEADING TO MARGINALLY BREEZY CONDITIONS ALONG THE COAST.
CHS WATCHES/WARNINGS/ADVISORIES
GA...NONE.
SC...COASTAL FLOOD ADVISORY FROM 7 AM THIS MORNING TO NOON EDT
TODAY FOR SCZ149-150.
MARINE...NONE.
CPM/SST
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