FXUS62 KCHS 192327 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 727 PM EDT Sun Apr 19 2026

.WHAT HAS CHANGED...

Updated the Small Craft Advisories and issued a Coastal Flood Advisory.

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.KEY MESSAGES...

- 1) Coastal Flood Advisory for portions of the South Carolina

coast this evening.

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.DISCUSSION...

KEY MESSAGE 1: Coastal Flood Advisory for portions of the South Carolina coast this evening.

Tidal anomalies have increased as winds have clocked around to NNE. Though, it's questionable how large anomalies will get before the 10:30 pm high tide. We adjusted the TWL forecast based on the current tide trends and issued a A Coastal Flood Advisory for potions of the SC coast this evening.

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.AVIATION /00Z MONDAY THROUGH FRIDAY/...

00Z TAFs: VFR.

Extended Aviation Outlook: Dry high pressure keeps VFR conditions in place through much of the coming week.

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.MARINE...

A brief period of enhanced NNE gradient is expected through Monday morning as high pressure builds behind a cold front. Expect 25 kt gusts this evening for the Charleston County nearshore waters, necessitating a Small Craft Advisory. Also maintained 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...Coastal Flood Advisory until 11 PM EDT this evening for SCZ149-

150.

MARINE...Small Craft Advisory until midnight EDT tonight for AMZ360.

Small Craft Advisory until 5 PM EDT Monday for AMZ384.

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