Charleston, SC, October 6, 2025
News Summary
Charleston, SC is under a coastal flood advisory due to King Tides and the October Supermoon. Residents are urged to take safety measures as inundation levels may reach up to half a foot. Strong rip currents are also predicted along the coast. Authorities recommend moving vehicles to higher ground and avoiding flooded roads. The advisory will remain in effect until 10 a.m., with high tidal levels expected around 7:44 a.m. Residents should remain cautious as flooding conditions may persist.
Charleston, SC is currently under a coastal flood advisory as the National Weather Service (NWS) issued an updated alert at 5:17 a.m. on Monday. The advisory is effective until 10 a.m. for Coastal Jasper and Beaufort County, signaling potential flooding due to a combination of King Tides, the October Supermoon, and prevailing weather conditions.
The NWS anticipates inundation levels could reach up to one half foot above ground level along shorelines and tidal waterways. Specifically, the Mean Lower Low Water (MLLW) at Fort Pulaski is expected to range between 9.5 to 9.7 feet. A high tide is forecasted for around 7:44 a.m. today, with saltwater inundation likely occurring one to two hours before and after this peak time. As a result, some roads may become impassable, affecting travel plans for residents.
The advisory warns of the potential dangers posed by strong rip currents for swimmers along the coastline. Authorities advise swimmers to remain close to lifeguarded areas and to react appropriately if caught in a rip current by relaxing and floating to conserve energy. Residents living in flood-prone areas are urged to take protective actions ahead of the anticipated flooding, which may include moving vehicles to higher ground and preparing for temporary road closures.
For safety, drivers are advised to avoid navigating through unknown water depths and to refrain from driving around barricades. People in flood-prone regions should seek higher ground immediately and follow evacuation instructions without delay. If evacuation is necessary, residents should secure their homes and disconnect utilities and appliances if time permits. Special caution is advised when entering any areas where standing water may cover electrical outlets or submerged cords. The NWS highlights that just 6 inches of moving water can knock an individual off their feet, while 12 inches can carry away most vehicles, leading to potential hydroplaning incidents.
Current weather patterns, including strong onshore winds and high tides, indicate that flooding conditions may persist, posing ongoing risks for coastal regions. The situation is further complicated by extreme weather events, as seen in North Carolina’s Outer Banks, where homes have already collapsed due to ongoing coastal erosion and flooding.
As the week progresses, alerts have been issued as part of the coastal flood advisory, which includes Coastal Flood Warnings and Rip Current Statements stretching from the Carolinas to Florida. While flooding threats are expected to peak early in the week, improvements may be seen later as winds shift offshore. However, future supermoons, scheduled for November 5 (Beaver Moon) and December 4 (Cold Moon), may continue to influence tidal levels and exacerbate flooding issues along the Southeast U.S. coast, including Charleston.
Key Flood Advisory Information
- Advisory Duration: Until 10 a.m. on Monday
- Location: Coastal Jasper and Beaufort County
- Forecasted Inundation: Up to 0.5 feet above ground
- Mean Lower Low Water (MLLW): 9.5 to 9.7 feet
- High Tide Forecast: 7:44 a.m. today
Flood Safety Measures
- Move vehicles to higher ground
- Avoid driving through flooded roads
- Seek higher ground in flood-prone areas
- Follow evacuation orders promptly
- Disengage utilities if time allows
- Exercise caution around flood waters
Future Considerations
- Ongoing risks for flooding this week
- Peak threat expected early in the week
- Future supermoons may influence flooding
FAQ
What is the duration of the coastal flood advisory issued for Charleston, SC?
The advisory is effective until 10 a.m. on Monday.
What is the expected inundation level along shorelines and tidal waterways?
Anticipated inundation levels are up to one half foot above ground level.
What safety measures should residents take during the advisory?
Residents are advised to allow extra travel time, move vehicles to higher ground, avoid driving through flood waters, and seek higher ground if in a flood-prone area.
Flood Advisory Key Features Chart
| Feature | Details |
|---|---|
| Advisory Duration | Until 10 a.m. on Monday |
| Area | Coastal Jasper and Beaufort County |
| Inundation Level | Up to 0.5 feet above ground |
| Mean Lower Low Water (MLLW) | 9.5 to 9.7 feet |
| High Tide | 7:44 a.m. today |
| Flood Safety Tips | Move to higher ground, avoid driving through water |
Deeper Dive: News & Info About This Topic
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Additional Resources
- Fox Weather: Weather Impact Alert
- ABC News 4: Coastal Flooding in Charleston
- Count On 2: Coastal Flooding Possible This Week
- Greenville Online: Hurricane Erin’s Impact on Coastal Flooding
- Encyclopedia Britannica: Coastal Flooding
Author: STAFF HERE BEAUFORT
The HERE Beaufort Staff Writers are a collaborative team of journalists, editors, and local contributors passionate about delivering accurate, timely information to the Beaufort community. As part of the HEREcity.com Network, which powers over 100 U.S. city sites including HEREcolumbia.com, our staff draws on collective experience in South Carolina journalism to cover everything from business sales and real estate developments to dining deals and community initiatives. Our Expertise and Background: Local Roots in Beaufort : Our team includes lifelong Beaufort residents and SC natives with deep knowledge of the area’s history, economy, and culture. We’ve covered key events like the recent sale of the historic Crofts Block Building, Beaufort’s equestrian heritage, and growth in local tech and education sectors (e.g., BeaufortTechnical College programs). Collective Experience: With over 50 combined years in journalism, our staff has backgrounds in print, digital media, and community reporting. We prioritize fact-based stories, drawing from sources like the Beaufort Chamber of Commerce, city government records, and on-the-ground interviews. Commitment to Quality: Every article is a group effort, involving research, editing, and verification to ensure reliability. We adhere to journalistic standards, citing credible sources and updating content as new details emerge.
