Weather
South Carolina Weather Oct. 23-25: 40 MPH Gusts, Coastal Flooding
Charleston, SC Coastal communities across South Carolina are preparing for a potentially significant weather event this weekend as strengthening northeast winds combine with some of the highest astron
By Wesley Grant · 2026-10-22T08:49:36.562Z
Charleston, SC Coastal communities across South Carolina are preparing for a potentially significant weather event this weekend as strengthening northeast winds combine with some of the highest astronomical tides of the year, raising concerns about coastal flooding, dangerous surf and possible road closures through Sunday, Oct. 25.
According to the National Weather Service in Charleston, the risk of coastal flooding will increase Friday through Sunday, with forecasters closely monitoring the possibility of major coastal flooding around Charleston on Sunday morning.
Charleston and coastal Colleton counties face increasing tidal flooding concerns, with moderate flooding forecast Saturday morning and the possibility of water levels approaching major flood stage Sunday morning.
Forecasters warn that flooding can develop several hours before and after high tide, potentially affecting roads and low lying coastal neighborhoods.
Some road closures are expected, particularly in flood prone coastal locations.
Meanwhile, northeast winds will strengthen throughout the weekend, with gusts between 30 and 40 mph possible along beaches.
The Weather Service indicates a greater than 70% probability of gale force winds over coastal waters, while a 20% to 50% chance exists for brief storm force winds mainly well offshore.
Dangerous surf and powerful rip currents will also threaten beaches from the Charleston area southward toward coastal Georgia.
Beach erosion and ocean overwash could affect Palmetto Boulevard on Edisto Beach and East Ashley Avenue on Folly Beach.
Inland, Lake Moultrie could experience winds reaching 20 knots, with gusts between 25 and 30 knots and waves of 2 to 3 feet.
These conditions could become hazardous for boaters, with minor shoreline erosion possible.
Coastal flooding concerns also extend into Beaufort and Jasper counties and portions of coastal Georgia.
Residents should avoid flooded roads, monitor local advisories and prepare for changing coastal conditions throughout the weekend.