National Weather ServiceSouth CarolinaCoastal Flood AdvisoryArchive to October 1, 2026
Coastal Flood Advisories in South Carolina
The National Weather Service issued 92 coastal flood advisories for South Carolina in 2025 and 70 a year on average in 2008-2025; in 2021-2025 it had the 3rd most of any state. 2026 through September: 64, 54% above the average of 42 for those months in 2008-2025. Charleston was covered most often (945 times since 2008).
How many coastal flood advisories does South Carolina get?
Every coastal flood advisory that covered part of South Carolina. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 64 |
| 2025 | 92 |
| 2024 | 98 |
| 2023 | 123 |
| 2022 | 124 |
| 2021 | 64 |
| 2020 | 88 |
| 2019 | 118 |
| 2018 | 51 |
| 2017 | 52 |
| 2016 | 64 |
| 2015 | 96 |
| 2014 | 55 |
| 2013 | 46 |
| 2012 | 48 |
| 2011 | 25 |
| 2010 | 32 |
| 2009 | 53 |
| 2008 | 25 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does South Carolina get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in South Carolina?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Charleston | 945 | 220 | September 30, 2026 |
| Coastal Colleton | 898 | 219 | September 30, 2026 |
| Beaufort | 599 | 61 | September 27, 2026 |
| Coastal Jasper | 452 | 61 | September 27, 2026 |
| Coastal Horry | 326 | 150 | September 29, 2026 |
| Coastal Georgetown | 323 | 150 | September 29, 2026 |
| Tidal Berkeley | 108 | 14 | October 11, 2025 |
| Horry | 13 | 0 | October 7, 2010 |
| Georgetown | 12 | 0 | October 7, 2010 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a coastal flood advisory?
A coastal flood advisory covers minor coastal flooding at high tide, such as water on shore roads and low parking lots. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in South Carolina.