Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

DID YOU KNOW... Please try our new TEST hydrograph page link at: https://preview.water.noaa.gov/gauges/abcde - Just replace “abcde” with your local hydrograph five character ID found in the lower left corner of the hydrograph.  In late March of 2024, the base URL path will become water.noaa.gov.  Feedback can be provided HERE

Weather Forecast Office Columbia, SC

Southeast River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental) Not Available

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NOTE: 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. Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the Savannah River at Lake Thurmond are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 338 Moderate Flood Stage: 336 Flood Stage: 335 Action Stage: 334 Low Stage (in feet): 0 Historic Crests (1) 336.46 ft on 04/11/1964 (2) 336.31 ft on 04/10/1964 (3) 336.03 ft on 01/01/2016 (4) 335.73 ft on 04/09/1964 (5) 335.45 ft on 02/07/1998 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 336.03 ft on 01/01/2016 (2) 335.45 ft on 02/07/1998 (3) 335.37 ft on 02/06/1998 (4) 335.28 ft on 03/07/1971 (5) 335.41 ft on 05/06/1964 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 316.90 ft on 12/15/2007 (2) 319.13 ft on 10/27/2007 For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:16 Legend FEMA Layer Gauge Location Disclaimer Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

If you notice any errors in the below information, please contact our Webmaster
340	Some low lying bridges begin to get inundated around Lloyds Creek and the Little River in South Carolina.
338	Roads near Lake Thurmond become flooded with 2 feet of water with some areas being cut off from the main land. Some structures near the lake shore flood.
336	Some roads in low areas and structures close to the shore of Lake Thurmond are threatened by flood water.
335	Flood stage - boat ramps and structures right on the shore line begin to flood. Locations downstream of Clarks Hill Dam are also subject to flooding.
334	Water approaches low lying areas along the shore of Lake Thurmond.

About This Location

Latitude: 33.661111° N, Longitude: 82.200000° W, Horizontal Datum: Unknown River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 335 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other NULL NULL   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Lake Thurmond

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations WFO Columbia SC Drought Information Page

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Southeast River Forecast Center Snow Information Weather Observations Precipitation Analysis Ensemble River Forecasts Temperature and Precipitation Report Hourly Precipitation

Collaborative Agencies The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here. NWS Information National Weather Service Columbia Weather Forecast Office 2909 Aviation Way West Columbia, SC 29170-2102 (803) 822-8135 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities