Charleston, SC, September 10, 2025
News Summary
Charleston, SC is currently experiencing moderate coastal flooding driven by king tides linked to a Full Moon and strong northeast winds. The National Weather Service has issued an advisory, warning of flooding in historic downtown and low-lying areas, with expected tidal levels reaching up to 7.0 feet. Residents are urged to seek higher ground and avoid flooded roads as conditions persist for several days.
Charleston, SC is experiencing moderate coastal flooding as a result of high tide conditions linked to a Full Moon and strong northeast winds. The National Weather Service (NWS) has issued a coastal flood advisory for the area, warning residents and visitors of potential flooding impacts in low-lying districts, particularly in the historic downtown Charleston.
According to the NWS, saltwater inundated several streets in downtown Charleston, contributing to hazardous driving conditions. The ongoing high tide conditions are scrutinized, as they are exacerbated by northeast winds blowing at 15-20 miles per hour, pushing water levels upward. The Gulf Stream’s current moving towards the north is also slowed by these winds, further elevating water levels along the East Coast.
Impact of King Tides
This coastal flooding aligns with the occurrence of king tides, especially pronounced during periods known as perigean spring tides. These tidal cycles, which happen during full and new moons, are expected to impact Charleston and surrounding areas for several days. Predictions from the NWS indicate that tidal levels could reach between 6.8 to 7.0 feet above normal dry ground on Saturday evening, particularly in tidal zones like Charleston Harbor.
Susceptible Areas
The advisory primarily indicates nuisance flooding, which primarily affects roads and lower regions. Key streets at risk include Fishburne Street and Hagood Avenue, and conditions might affect adjacent coastal communities such as Hilton Head, Beaufort, and Myrtle Beach. Drivers are urged to remain vigilant, especially as drainage systems struggle to manage the incoming water during such high tide situations.
Safety Precautions
Residents and visitors in flood-prone areas are encouraged to seek higher ground and refrain from driving through flooded roads. Even minimal amounts of floodwater can pose significant risks to both vehicles and pedestrians, leading to potential hydroplaning incidents on wet surfaces. It is emphasized that just 6 inches of moving water is enough to knock a person off their feet.
Future Implications
The occurrence of king tides serves as a foreshadowing of future flood scenarios as global sea levels continue to rise, according to predictions by the National Oceanic and Atmospheric Administration (NOAA). With climate change contributing to rising sea levels, the frequency and severity of coastal floods like the one currently affecting Charleston may increase over time.
Conclusion
As the coastal flood advisory remains in effect, residents are advised to stay updated on conditions and exercise caution if traveling in affected areas. The combination of heightened tides, strong winds, and ongoing climatic changes highlight the importance of preparedness in coastal regions.
FAQ
What is causing the coastal flooding in Charleston, SC?
The coastal flooding in Charleston is mainly due to king tides, which are higher than usual tides occurring during full moons, combined with northeast winds contributing to higher water levels.
Which areas are most affected by flooding?
Historic downtown Charleston is particularly affected, along with low-lying regions. Nearby communities such as Hilton Head, Beaufort, and Myrtle Beach are also experiencing flooding issues.
What safety precautions should residents take during this flooding?
Residents should avoid driving through flooded roadways, as even small amounts of floodwater can be dangerous. It’s advised to move to higher ground and stay informed about local conditions.
How long might these flooding conditions last?
The current tidal effects could last for several days, particularly with forecasters predicting elevated water levels during subsequent high tides.
Key Features of Coastal Flood Advisory in Charleston
| Feature | Details |
|---|---|
| Location | Charleston, SC |
| Cause of Flooding | King Tides, High Winds, Full Moon |
| Wind Speed | 15-20 miles per hour Northeast winds |
| Tide Predictions | 6.8 to 7.0 feet above normal dry ground |
| Affected Areas | Historic Downtown Charleston, Hilton Head, Beaufort, Myrtle Beach |
| Safety Advice | Avoid Flooded Roads, Seek Higher Ground |
| Hydroplaning Risk | 6 inches of moving water can knock a person off their feet |
Deeper Dive: News & Info About This Topic
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Additional Resources
- ABC News 4: Coastal Flooding in Charleston
- Greenville Online: King Tide Advisory for Charleston
- Count On 2: Coastal Flooding Possible in Charleston
- Fox Weather: Coastal Flooding and Rip Currents Report
- Live 5 News: High Tide and Flood Conditions
- Wikipedia: Coastal Flooding
- Google Search: Coastal Flooding South Carolina
- Google Scholar: Coastal Flooding and King Tides
- Encyclopedia Britannica: Tide
- Google News: Coastal Flooding Charleston
Author: STAFF HERE CHARLESTON
The CHARLESTON STAFF WRITER represents the experienced team at HEREcharleston.com, your go-to source for actionable local news and information in Charleston, Charleston County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Spoleto Festival USA, Charleston Wine + Food Festival, and the MOJA Festival. Our coverage extends to key organizations like the Charleston Metro Chamber of Commerce and the Charleston Museum, plus leading businesses in tourism and maritime industries that power the local economy such as South Carolina Ports Authority and the Charleston Visitor Center. As part of the broader HERE network, including HEREaiken.com, HEREbeaufort.com, HEREchapin.com, HEREcharleston.com, HEREclinton.com, HEREcolumbia.com, HEREgeorgetown.com, HEREgreenwood.com, HEREgreenville.com, HEREhiltonhead.com, HEREirmo.com, HEREmyrtlebeach.com, HEREnewberry.com, HERErockhill.com, HEREspartanburg.com, HEREaustin.com, HEREcollegestation.com, HEREdallas.com, HEREhouston.com, and HEREsanantonio.com, we provide comprehensive, credible insights into South Carolina's dynamic landscape.
