National Weather ServiceSouth CarolinaFlash Flood WarningArchive to October 1, 2026
Flash Flood Warnings in South Carolina
The National Weather Service issued 54 flash flood warnings for South Carolina in 2025 and 47 a year on average in 2008-2025; in 2021-2025 it had the 28th most of any state. 2026 through September: 42, 6% above the average of 40 for those months in 2008-2025. Richland was covered most often (179 times since 2008).
How many flash flood warnings does South Carolina get?
Every flash flood warning that covered part of South Carolina. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 42 |
| 2025 | 54 |
| 2024 | 116 |
| 2023 | 35 |
| 2022 | 47 |
| 2021 | 21 |
| 2020 | 44 |
| 2019 | 18 |
| 2018 | 37 |
| 2017 | 38 |
| 2016 | 37 |
| 2015 | 91 |
| 2014 | 61 |
| 2013 | 81 |
| 2012 | 28 |
| 2011 | 25 |
| 2010 | 39 |
| 2009 | 38 |
| 2008 | 27 |
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 |
|---|---|---|---|
| Richland | 179 | 41 | August 10, 2026 |
| Charleston | 135 | 31 | September 11, 2026 |
| Berkeley | 103 | 21 | August 22, 2026 |
| Lexington | 98 | 32 | August 6, 2026 |
| Greenville | 76 | 17 | September 27, 2024 |
| Horry | 66 | 22 | October 12, 2025 |
| Dorchester | 61 | 13 | August 22, 2026 |
| Orangeburg | 51 | 22 | August 21, 2026 |
| Spartanburg | 45 | 11 | August 13, 2026 |
| Colleton | 43 | 13 | September 11, 2026 |
| Aiken | 39 | 17 | August 27, 2026 |
| Georgetown | 39 | 10 | October 12, 2025 |
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.
The latest flash flood warnings for South Carolina in AreaZine's record
NWS CharlestonWarningSeptember 11, 2026
Flash Flood Warning: Charleston and Colleton, SC
Expired 6:30 p.m. EDT, September 11, 2026
NWS CharlestonWarningAugust 27, 2026
Flash Flood Warning: Beaufort, Colleton and Hampton, SC
Expired 7:45 p.m. EDT, August 27, 2026
NWS CharlestonWarningAugust 22, 2026
Flash Flood Warning: Berkeley and Charleston, SC
Expired 9:30 p.m. EDT, August 22, 2026
NWS ColumbiaWarningAugust 21, 2026
Flash Flood Warning: Clarendon and Orangeburg, SC
Expired 10:15 p.m. EDT, August 21, 2026
NWS WilmingtonWarningAugust 16, 2026
Flash Flood Warning: Florence, SC
Expired 8:45 p.m. EDT, August 16, 2026
NWS CharlestonWarningAugust 13, 2026
Flash Flood Warning: Dorchester, SC
Expired 10:30 p.m. EDT, August 13, 2026
NWS ColumbiaWarningAugust 10, 2026
Flash Flood Warning: Kershaw and Richland, SC
Expired 5:30 p.m. EDT, August 10, 2026
NWS ColumbiaWarningAugust 6, 2026
Flash Flood Warning: Lexington, Newberry and Saluda, SC
Expired 7:30 p.m. EDT, August 6, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flash flood warning?
A flash flood warning means flash flooding is happening or about to happen: water rising fast in streams, streets or dry washes, usually within six hours of heavy rain or a dam or levee failure. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in South Carolina.