160
FXUS62 KCHS 281534
AFDCHS
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
1134 AM EDT MON SEP 28 2026
WHAT HAS CHANGED
UPDATE TO CANCEL THE COASTAL FLOOD ADVISORY.
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).
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 /15Z 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...NONE.
MARINE...NONE.
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