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Weather Forecast Office Columbia, SC

Southeast River Forecast Center

Hydrograph

River at a Glance

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Congaree River at Congaree National Park

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About this graph

Tabular Data (UTC)

Tabular Data (EST)

Datum: NGVD29

Metadata

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.

NOTE: Gauge reading affected by reservoir operations.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Congaree River at Congaree National Park are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	20
Moderate Flood Stage:	18
Flood Stage:	15
Action Stage:	14
Low Stage (in feet):	0

Historic Crests
(1) 19.83 ft on 10/05/2015
(2) 19.54 ft on 02/10/2020
(3) 18.65 ft on 03/23/2003
(4) 18.28 ft on 01/01/2016
(5) 18.27 ft on 08/31/1995
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 16.31 ft on 12/03/2020
(2) 17.95 ft on 11/15/2020
(3) 17.80 ft on 11/15/2020
(4) 16.22 ft on 10/13/2020
(5) 15.75 ft on 09/18/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:14

	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
22	Extensive farmland from Sandy Run to St. Matthews becomes flooded. Farm equipment and cattle should be moved to higher ground. Extensive flooding also occurs in the Congaree National Park.
20	Farmland from Sandy Run to St. Matthews becomes flooded. Flooding increases in the Congaree National Park. At 19 feet the river covers most of the elevated boardwalk in the Congaree National Park.
18	Several homes in the Sandy Run subdivision along the river become flooded. At 18 feet the river covers the Weston Lake overlook in the Congaree National Park. Between 18 and 18.5 feet the river begins to cover sections of the elevated boardwalk.
17	The access road to the Sandy Run subdivision becomes flooded. The lower boardwalk in the Congaree National Park becomes flooded by Cedar Creek.
15	Flooding begins in the Congaree National Park. This will begin to produce flooding of portions of the lower boardwalk.

About This Location

Latitude: 33.810556° N, Longitude: 80.867222° W, Horizontal Datum: NAD27

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	15 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	Not Available	Not Available

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for Congaree National Park

Additional Information

Potential River Levels - Used to

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS)	10 Day (NAEFS)	10 Day (GEFS)

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

Data courtesy of the United State Geological Survey.

Resources

Hydrologic Resources

Additional Resources

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
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Page last modified: 2-Nov-2020 7:30 PM

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