Rivers in South Carolina
Lynches River at Effingham
Below flood stage
1.34ftStage
Observed Thu, Sep 24, 12:00 AM EDT
- Flood stage
- 14.00 ft
- Record crest
- 21.21 ft1945
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 18.00 ft |
| Moderate flood | 16.00 ft |
| Minor flood | 14.00 ft |
| Action | 11.00 ft |
- 21.00 ftNear record flooding will occur.
- 18.00 ftExtensive flooding will occur.
- 17.50 ftExtensive flooding will occur along the river. In addition, flood waters will affect some residential areas up stream near the Sumter County line.
- 16.50 ftWater will enter some homes along Roundtree Road. Several homes will be isolated along North Old Georgetown, Roundtree, and Bengause Roads near Effingham and New Hope.
- 16.00 ftFlood waters will affect several homes along the river and isolate those residents without boats.
- 15.50 ftFlood waters will affect portions of North Old Georgetown, Roundtree and Bengause Roads near Effingham and New Hope. The roads will be impassable in places.
- 15.00 ftFlood waters will affect roads near Effingham and New Hope. North Old Georgetown, Roundtree and Bengause Roads will flood in low lying areas near the river.
- 14.00 ftFlooding will affect low lying areas along the river.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 6% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 15, 2026.
Crest history
543 crests on NOAA’s list since 1891.
| # | Date | Stage |
|---|---|---|
| 1 | September 22, 1945 | 21.21 ft |
| 2 | August 30, 1908 | 20.00 ft |
| 3 | October 6, 2015 | 19.70 ft |
| 4 | September 24, 1928 | 19.40 ft |
| 5 | September 20, 1928 | 19.40 ft |
| 6 | October 7, 1929 | 19.40 ft |
| 7 | September 11, 1928 | 19.00 ft |
| 8 | October 18, 1990 | 18.87 ft |
| 9 | July 20, 1916 | 18.70 ft |
| 10 | April 12, 1936 | 18.66 ft |
| 11 | July 17, 1916 | 18.50 ft |
| 12 | December 25, 1994 | 18.35 ft |
| 13 | February 21, 2021 | 17.95 ft |
| 14 | October 10, 2016 | 17.76 ft |
| 15 | June 2, 2020 | 17.71 ft |
| 16 | January 24, 1892 | 17.50 ft |
| 17 | March 5, 1971 | 17.46 ft |
| 18 | March 2, 1979 | 17.45 ft |
| 19 | March 4, 1939 | 17.39 ft |
| 20 | March 12, 1922 | 17.30 ft |
| 21 | March 10, 1929 | 17.30 ft |
| 22 | February 12, 1899 | 17.20 ft |
| 23 | June 22, 1901 | 17.20 ft |
| 24 | January 24, 1925 | 17.20 ft |
| 25 | March 24, 1983 | 17.19 ft |
Most recent crests
- October 14, 2025: 9.46 ft
- March 25, 2025: 10.06 ft
- August 14, 2024: 15.74 ft
- August 9, 2024: 15.58 ft
- March 9, 2024: 13.18 ft
- January 17, 2024: 11.51 ft
- April 16, 2023: 11.24 ft
- March 29, 2023: 12.85 ft
- February 20, 2023: 11.78 ft
- March 20, 2022: 11.96 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Southeast River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.