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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.

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Hydrograph River at a Glance Download
Chattahoochee River near Cornelia Stage (ft)Flow (kcfs)Highest Observation: 0.59 ft at 3:15AM Dec 05, 2023Highest Observation: 0.59 ft at 3:30AM Dec 05, 2023Highest Observation: 0.59 ft at 3:45AM Dec 05, 2023Highest Observation: 0.59 ft at 4:00AM Dec 05, 2023Highest Observation: 0.59 ft at 4:15AM Dec 05, 2023Observed: 0.58 ft at 4:30AM Dec 05, 2023Observed: 0.58 ft at 4:45AM Dec 05, 2023Observed: 0.58 ft at 5:00AM Dec 05, 2023Observed: 0.58 ft at 5:15AM Dec 05, 2023Observed: 0.58 ft at 5:30AM Dec 05, 2023Observed: 0.58 ft at 5:45AM Dec 05, 2023Observed: 0.57 ft at 7:00AM Dec 05, 2023Observed: 0.57 ft at 7:15AM Dec 05, 2023Observed: 0.57 ft at 7:30AM Dec 05, 2023Observed: 0.56 ft at 7:45AM Dec 05, 2023Observed: 0.55 ft at 8:00AM Dec 05, 2023Observed: 0.55 ft at 8:15AM Dec 05, 2023Observed: 0.55 ft at 8:30AM Dec 05, 2023Observed: 0.54 ft at 8:45AM Dec 05, 2023Observed: 0.54 ft at 9:00AM Dec 05, 2023Observed: 0.54 ft at 9:15AM Dec 05, 2023Observed: 0.54 ft at 9:30AM Dec 05, 2023Observed: 0.54 ft at 9:45AM Dec 05, 2023Observed: 0.54 ft at 10:00AM Dec 05, 2023Observed: 0.54 ft at 10:15AM Dec 05, 2023Observed: 0.54 ft at 10:30AM Dec 05, 2023Observed: 0.54 ft at 10:45AM Dec 05, 2023Observed: 0.54 ft at 11:00AM Dec 05, 2023Observed: 0.54 ft at 11:15AM Dec 05, 2023Observed: 0.53 ft at 11:30AM Dec 05, 2023Observed: 0.53 ft at 11:45AM Dec 05, 2023Observed: 0.54 ft at 12:00PM Dec 05, 2023Observed: 0.53 ft at 12:15PM Dec 05, 2023Observed: 0.54 ft at 12:30PM Dec 05, 2023Observed: 0.54 ft at 12:45PM Dec 05, 2023Observed: 0.53 ft at 1:00PM Dec 05, 2023Observed: 0.53 ft at 1:15PM Dec 05, 2023Observed: 0.53 ft at 1:30PM Dec 05, 2023Observed: 0.53 ft at 1:45PM Dec 05, 2023Observed: 0.53 ft at 2:00PM Dec 05, 2023Observed: 0.52 ft at 2:15PM Dec 05, 2023Observed: 0.52 ft at 2:30PM Dec 05, 2023Observed: 0.52 ft at 2:45PM Dec 05, 2023Observed: 0.52 ft at 3:00PM Dec 05, 2023Observed: 0.52 ft at 3:15PM Dec 05, 2023Observed: 0.52 ft at 3:30PM Dec 05, 2023Observed: 0.52 ft at 3:45PM Dec 05, 2023Observed: 0.53 ft at 5:00PM Dec 05, 2023Observed: 0.53 ft at 5:15PM Dec 05, 2023Observed: 0.53 ft at 5:30PM Dec 05, 2023Observed: 0.53 ft at 5:45PM Dec 05, 2023Observed: 0.53 ft at 6:00PM Dec 05, 2023Observed: 0.53 ft at 6:15PM Dec 05, 2023Observed: 0.53 ft at 6:30PM Dec 05, 2023Observed: 0.53 ft at 6:45PM Dec 05, 2023Observed: 0.53 ft at 7:00PM Dec 05, 2023Observed: 0.53 ft at 7:15PM Dec 05, 2023Observed: 0.52 ft at 7:30PM Dec 05, 2023Observed: 0.51 ft at 7:45PM Dec 05, 2023Observed: 0.5 ft at 8:00PM Dec 05, 2023Observed: 0.5 ft at 8:15PM Dec 05, 2023Observed: 0.5 ft at 8:30PM Dec 05, 2023Observed: 0.5 ft at 8:45PM Dec 05, 2023Observed: 0.49 ft at 9:00PM Dec 05, 2023Observed: 0.49 ft at 9:15PM Dec 05, 2023Observed: 0.49 ft at 9:30PM Dec 05, 2023Observed: 0.49 ft at 9:45PM Dec 05, 2023Observed: 0.49 ft at 10:00PM Dec 05, 2023Observed: 0.49 ft at 10:15PM Dec 05, 2023Observed: 0.49 ft at 10:30PM Dec 05, 2023Observed: 0.49 ft at 10:45PM Dec 05, 2023Observed: 0.49 ft at 11:00PM Dec 05, 2023Observed: 0.49 ft at 11:15PM Dec 05, 2023Observed: 0.49 ft at 11:30PM Dec 05, 2023Observed: 0.49 ft at 11:45PM Dec 05, 2023Observed: 0.49 ft at 12:00AM Dec 06, 2023Observed: 0.49 ft at 12:15AM Dec 06, 2023Observed: 0.49 ft at 12:30AM Dec 06, 2023Observed: 0.48 ft at 12:45AM Dec 06, 2023Observed: 0.48 ft at 1:00AM Dec 06, 2023Observed: 0.49 ft at 1:15AM Dec 06, 2023Observed: 0.5 ft at 1:30AM Dec 06, 2023Observed: 0.5 ft at 1:45AM Dec 06, 2023Observed: 0.5 ft at 5:00AM Dec 06, 2023Observed: 0.5 ft at 5:15AM Dec 06, 2023Observed: 0.5 ft at 5:30AM Dec 06, 2023Observed: 0.5 ft at 5:45AM Dec 06, 2023Observed: 0.5 ft at 6:00AM Dec 06, 2023Observed: 0.49 ft at 6:15AM Dec 06, 2023Observed: 0.49 ft at 6:30AM Dec 06, 2023Observed: 0.48 ft at 6:45AM Dec 06, 2023Observed: 0.48 ft at 7:00AM Dec 06, 2023Observed: 0.48 ft at 7:15AM Dec 06, 2023Observed: 0.47 ft at 7:30AM Dec 06, 2023Observed: 0.47 ft at 7:45AM Dec 06, 2023Observed: 0.47 ft at 8:00AM Dec 06, 2023Observed: 0.47 ft at 8:15AM Dec 06, 2023Observed: 0.47 ft at 8:30AM Dec 06, 2023Observed: 0.47 ft at 8:45AM Dec 06, 2023Observed: 0.47 ft at 9:00AM Dec 06, 2023Observed: 0.47 ft at 9:15AM Dec 06, 2023Observed: 0.47 ft at 9:30AM Dec 06, 2023Observed: 0.47 ft at 9:45AM Dec 06, 2023Observed: 0.47 ft at 10:00AM Dec 06, 2023Observed: 0.47 ft at 10:15AM Dec 06, 2023Observed: 0.47 ft at 10:30AM Dec 06, 2023Observed: 0.48 ft at 10:45AM Dec 06, 2023Observed: 0.48 ft at 11:00AM Dec 06, 2023Observed: 0.48 ft at 11:15AM Dec 06, 2023Observed: 0.48 ft at 11:30AM Dec 06, 2023Observed: 0.47 ft at 11:45AM Dec 06, 2023Observed: 0.46 ft at 12:00PM Dec 06, 2023Observed: 0.46 ft at 12:15PM Dec 06, 2023Observed: 0.46 ft at 12:30PM Dec 06, 2023Observed: 0.46 ft at 12:45PM Dec 06, 2023Observed: 0.46 ft at 1:00PM Dec 06, 2023Observed: 0.46 ft at 1:15PM Dec 06, 2023Observed: 0.45 ft at 1:30PM Dec 06, 2023Observed: 0.45 ft at 1:45PM Dec 06, 2023Observed: 0.45 ft at 2:00PM Dec 06, 2023Observed: 0.45 ft at 2:15PM Dec 06, 2023Observed: 0.45 ft at 2:30PM Dec 06, 2023Observed: 0.45 ft at 2:45PM Dec 06, 2023Observed: 0.45 ft at 3:00PM Dec 06, 2023Observed: 0.45 ft at 3:15PM Dec 06, 2023Observed: 0.46 ft at 3:30PM Dec 06, 2023Observed: 0.47 ft at 3:45PM Dec 06, 2023Observed: 0.47 ft at 4:00PM Dec 06, 2023Observed: 0.47 ft at 4:15PM Dec 06, 2023Observed: 0.47 ft at 4:30PM Dec 06, 2023Observed: 0.47 ft at 4:45PM Dec 06, 2023Observed: 0.47 ft at 5:00PM Dec 06, 2023Observed: 0.46 ft at 5:15PM Dec 06, 2023Observed: 0.46 ft at 5:30PM Dec 06, 2023Observed: 0.46 ft at 5:45PM Dec 06, 2023Observed: 0.46 ft at 6:00PM Dec 06, 2023Observed: 0.46 ft at 6:15PM Dec 06, 2023Observed: 0.46 ft at 6:30PM Dec 06, 2023Observed: 0.46 ft at 6:45PM Dec 06, 2023Observed: 0.46 ft at 7:00PM Dec 06, 2023Observed: 0.46 ft at 7:15PM Dec 06, 2023Observed: 0.46 ft at 7:30PM Dec 06, 2023Observed: 0.46 ft at 7:45PM Dec 06, 2023Observed: 0.46 ft at 8:00PM Dec 06, 2023Observed: 0.46 ft at 8:15PM Dec 06, 2023Observed: 0.45 ft at 8:30PM Dec 06, 2023Observed: 0.45 ft at 8:45PM Dec 06, 2023Observed: 0.44 ft at 9:00PM Dec 06, 2023Observed: 0.44 ft at 9:15PM Dec 06, 2023Observed: 0.44 ft at 9:30PM Dec 06, 2023Observed: 0.44 ft at 9:45PM Dec 06, 2023Observed: 0.44 ft at 10:00PM Dec 06, 2023Observed: 0.43 ft at 10:15PM Dec 06, 2023Observed: 0.43 ft at 10:30PM Dec 06, 2023Observed: 0.43 ft at 10:45PM Dec 06, 2023Observed: 0.43 ft at 12:00AM Dec 07, 2023Observed: 0.43 ft at 12:15AM Dec 07, 2023Observed: 0.43 ft at 12:30AM Dec 07, 2023Observed: 0.43 ft at 12:45AM Dec 07, 2023Observed: 0.43 ft at 1:00AM Dec 07, 2023Observed: 0.43 ft at 1:15AM Dec 07, 2023Observed: 0.43 ft at 1:30AM Dec 07, 2023Observed: 0.43 ft at 1:45AM Dec 07, 2023Observed: 0.43 ft at 2:00AM Dec 07, 2023Observed: 0.44 ft at 2:15AM Dec 07, 2023Observed: 0.44 ft at 2:30AM Dec 07, 2023Observed: 0.44 ft at 2:45AM Dec 07, 2023Observed: 0.44 ft at 3:00AM Dec 07, 2023Observed: 0.44 ft at 3:15AM Dec 07, 2023Observed: 0.44 ft at 3:30AM Dec 07, 2023Observed: 0.44 ft at 3:45AM Dec 07, 2023Observed: 0.44 ft at 4:00AM Dec 07, 2023Observed: 0.44 ft at 4:15AM Dec 07, 2023Observed: 0.44 ft at 4:30AM Dec 07, 2023Observed: 0.44 ft at 4:45AM Dec 07, 2023Observed: 0.44 ft at 5:00AM Dec 07, 2023Observed: 0.44 ft at 5:15AM Dec 07, 2023Observed: 0.43 ft at 5:30AM Dec 07, 2023Observed: 0.42 ft at 5:45AM Dec 07, 2023Observed: 0.41 ft at 6:00AM Dec 07, 2023Observed: 0.41 ft at 6:15AM Dec 07, 2023Observed: 0.41 ft at 6:30AM Dec 07, 2023Observed: 0.41 ft at 6:45AM Dec 07, 2023Observed: 0.41 ft at 7:00AM Dec 07, 2023Observed: 0.41 ft at 7:15AM Dec 07, 2023Observed: 0.41 ft at 7:30AM Dec 07, 2023Observed: 0.41 ft at 7:45AM Dec 07, 2023Observed: 0.41 ft at 8:00AM Dec 07, 2023Observed: 0.41 ft at 8:15AM Dec 07, 2023Observed: 0.41 ft at 8:30AM Dec 07, 2023Observed: 0.41 ft at 8:45AM Dec 07, 2023Observed: 0.41 ft at 9:00AM Dec 07, 2023Observed: 0.41 ft at 9:15AM Dec 07, 2023Observed: 0.41 ft at 9:30AM Dec 07, 2023Observed: 0.41 ft at 9:45AM Dec 07, 2023Observed: 0.42 ft at 10:00AM Dec 07, 2023Observed: 0.43 ft at 10:15AM Dec 07, 2023Observed: 0.43 ft at 10:30AM Dec 07, 2023Observed: 0.43 ft at 10:45AM Dec 07, 2023Observed: 0.43 ft at 11:00AM Dec 07, 2023Observed: 0.43 ft at 11:15AM Dec 07, 2023Observed: 0.43 ft at 11:30AM Dec 07, 2023Observed: 0.43 ft at 11:45AM Dec 07, 2023Observed: 0.44 ft at 12:00PM Dec 07, 2023Observed: 0.44 ft at 12:15PM Dec 07, 2023Observed: 0.43 ft at 12:30PM Dec 07, 2023Observed: 0.42 ft at 12:45PM Dec 07, 2023Observed: 0.41 ft at 1:00PM Dec 07, 2023Observed: 0.41 ft at 1:15PM Dec 07, 2023Observed: 0.41 ft at 1:30PM Dec 07, 2023Observed: 0.4 ft at 1:45PM Dec 07, 2023Observed: 0.42 ft at 2:00PM Dec 07, 2023Observed: 0.42 ft at 2:15PM Dec 07, 2023Observed: 0.42 ft at 2:30PM Dec 07, 2023Observed: 0.43 ft at 2:45PM Dec 07, 2023Observed: 0.43 ft at 3:00PM Dec 07, 2023Observed: 0.43 ft at 3:15PM Dec 07, 2023Observed: 0.43 ft at 3:30PM Dec 07, 2023Observed: 0.43 ft at 3:45PM Dec 07, 2023Observed: 0.42 ft at 5:00PM Dec 07, 2023Observed: 0.42 ft at 5:15PM Dec 07, 2023Observed: 0.42 ft at 5:30PM Dec 07, 2023Observed: 0.42 ft at 5:45PM Dec 07, 2023Observed: 0.42 ft at 6:00PM Dec 07, 2023Observed: 0.42 ft at 6:15PM Dec 07, 2023Observed: 0.42 ft at 6:30PM Dec 07, 2023Observed: 0.42 ft at 6:45PM Dec 07, 2023Observed: 0.42 ft at 8:00PM Dec 07, 2023Observed: 0.42 ft at 8:15PM Dec 07, 2023Observed: 0.41 ft at 8:30PM Dec 07, 2023Observed: 0.41 ft at 8:45PM Dec 07, 2023Observed: 0.4 ft at 9:00PM Dec 07, 2023Observed: 0.4 ft at 9:15PM Dec 07, 2023Observed: 0.4 ft at 9:30PM Dec 07, 2023Observed: 0.4 ft at 9:45PM Dec 07, 2023Observed: 0.4 ft at 10:00PM Dec 07, 2023Observed: 0.4 ft at 10:15PM Dec 07, 2023Observed: 0.41 ft at 10:30PM Dec 07, 2023Observed: 0.4 ft at 10:45PM Dec 07, 2023Observed: 0.4 ft at 11:00PM Dec 07, 2023Observed: 0.39 ft at 11:15PM Dec 07, 2023Observed: 0.39 ft at 11:30PM Dec 07, 2023Observed: 0.39 ft at 11:45PM Dec 07, 2023Observed: 0.39 ft at 12:00AM Dec 08, 2023Observed: 0.39 ft at 12:15AM Dec 08, 2023Observed: 0.39 ft at 12:30AM Dec 08, 2023Observed: 0.39 ft at 12:45AM Dec 08, 2023Observed: 0.39 ft at 1:00AM Dec 08, 2023Observed: 0.39 ft at 1:15AM Dec 08, 2023Observed: 0.39 ft at 1:30AM Dec 08, 2023Observed: 0.39 ft at 1:45AM Dec 08, 2023Observed: 0.4 ft at 2:00AM Dec 08, 2023Observed: 0.4 ft at 2:15AM Dec 08, 2023Observed: 0.41 ft at 2:30AM Dec 08, 2023Observed: 0.41 ft at 2:45AM Dec 08, 2023USGS--Water Resources of the United StatesDCNG1(plotting HGIRG) Graph Created (3:04AM Dec 8, 2023)ObservedLatest observed value: 0.41 ft at 2:45 AM EST 8-Dec-2023. Flood Stage is 14 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Automated gauge readings are now available, courtesy of the USGS.

NOTE: Forecasts are not available for the Chattahoochee River near Cornelia. Only observed stages are available for this point.

Return to Area Map
Upstream Gauge - at Helen Upstream Gauge Downstream Gauge Downstream Gauge - at Lake Sidney Lanier near Buford
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 18
Flood Stage: 14
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 20.63 ft on 10/11/2020
(2) 20.55 ft on 03/12/1963
(3) 20.30 ft on 05/28/1973
(4) 18.83 ft on 08/23/1967
(5) 17.95 ft on 05/29/1976
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.63 ft on 10/11/2020
(2) 14.29 ft on 02/06/2020
(3) 15.53 ft on 12/28/2018
(4) 16.68 ft on 01/27/1996
(5) 17.95 ft on 05/29/1976
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.36 ft on 09/29/2007
(2) -0.25 ft on 08/24/2008

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 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.
About This Location Collapse

Latitude: 34.540833° N, Longitude: 83.622778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 14 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 1128.64 ft 1142.64 ft 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:
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Hydrologic Resources Additional Resources
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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
Peachtree City/Atlanta Weather Forecast Office
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Peachtree City, GA 30269
(770) 486-1133
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