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.

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.KEY MESSAGES...

- 1) Minor coastal flooding possible along the South Carolina

coast this evening.

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.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.

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.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.

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.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.

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.CHS WATCHES/WARNINGS/ADVISORIES...

GA...None. SC...None. MARINE...Small Craft Advisory from 7 PM this evening to 5 PM EDT Monday

for AMZ384.

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JRL