178
FXUS62 KCHS 191808
AFDCHS
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
208 PM EDT SUN APR 19 2026
WHAT HAS CHANGED
ALL SECTIONS UPDATED.
KEY MESSAGES
- 1) MINOR COASTAL FLOODING POSSIBLE ALONG THE SOUTH CAROLINA
COAST THIS EVENING.
DISCUSSION
KEY MESSAGE 1: MINOR COASTAL FLOODING POSSIBLE ALONG THE SOUTH
CAROLINA COAST THIS EVENING.
TIDAL ANOMALY HAS DECREASED BY A FEW TENTHS OF A FOOT SINCE LAST
EVENING GIVEN THE DEVELOPING OFFSHORE WINDS. HOWEVER, WINDS WILL
CLOCK AROUND TO NNE THIS EVENING WHICH IS A MUCH MORE FAVORABLE
DIRECTION FOR POSITIVE DEPARTURE. THE BIG QUESTION IS HOW MUCH
ANOMALY BUILDS BEFORE THE 10:30 PM HIGH TIDE. WE MAINTAINED THE
PREVIOUS FORECAST OF +0.8 FT ANOMALY AND 7.3 FT MLLW PEAK TIDE
LEVEL (MINOR). A COASTAL FLOOD ADVISORY WILL LIKELY BE NEEDED.
AVIATION /18Z SUNDAY THROUGH FRIDAY/
VFR. GUSTY NNW WINDS WILL DIMINISH AROUND SUNSET.
EXTENDED AVIATION OUTLOOK: DRY HIGH PRESSURE KEEPS VFR CONDITIONS
IN PLACE THROUGH MUCH OF THE COMING WEEK.
MARINE
A BRIEFLY PERIOD OF ENHANCED NNE GRADIENT EXPECTED THROUGH
MONDAY MORNING AS HIGH PRESSURE BUILDS BEHIND A COLD FRONT. A
BRIEF PERIOD OF 20-25 KT GUSTS IS POSSIBLE WITHIN 10 NM OF
CHARLESTON COUNTY SHORE THIS EVENING, BUT NOT ENOUGH TO ISSUE AN
ADVISORY. WE DID MAINTAIN THE SMALL CRAFT ADVISORY FOR THE
OFFSHORE GA WATERS UNTIL MONDAY AFTERNOON TO HIGHLIGHT A MORE
PROLONGED PERIOD OF 25 KT GUSTS AND 4-6 FT SEAS.
RIP CURRENTS: A MODERATE RISK OF RIP CURRENTS REMAINS IN PLACE FOR
ALL BEACHES THROUGH MONDAY DUE TO LINGERING SWELLS, LINGERING
ASTRONOMICAL FACTORS, AND STRONG LONGSHORE CURRENT.
CHS WATCHES/WARNINGS/ADVISORIES
GA...NONE.
SC...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 7 PM THIS EVENING TO 5 PM EDT MONDAY
FOR AMZ384.
JRL
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