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Hydrograph River at a Glance Download
Chattahoochee River near Cornelia Stage (ft)Flow (kcfs)Observed: 1.69 ft at 9:15PM Jul 23, 2021Observed: 1.7 ft at 9:30PM Jul 23, 2021Observed: 1.71 ft at 9:45PM Jul 23, 2021Observed: 1.72 ft at 10:00PM Jul 23, 2021Observed: 1.73 ft at 10:15PM Jul 23, 2021Observed: 1.75 ft at 10:30PM Jul 23, 2021Observed: 1.76 ft at 10:45PM Jul 23, 2021Observed: 1.76 ft at 11:00PM Jul 23, 2021Observed: 1.76 ft at 11:15PM Jul 23, 2021Observed: 1.76 ft at 11:30PM Jul 23, 2021Observed: 1.76 ft at 11:45PM Jul 23, 2021Observed: 1.75 ft at 12:00AM Jul 24, 2021Observed: 1.75 ft at 12:15AM Jul 24, 2021Observed: 1.73 ft at 12:30AM Jul 24, 2021Observed: 1.73 ft at 12:45AM Jul 24, 2021Observed: 1.71 ft at 1:00AM Jul 24, 2021Observed: 1.71 ft at 1:15AM Jul 24, 2021Observed: 1.71 ft at 1:30AM Jul 24, 2021Observed: 1.7 ft at 1:45AM Jul 24, 2021Observed: 1.69 ft at 2:00AM Jul 24, 2021Observed: 1.69 ft at 2:15AM Jul 24, 2021Observed: 1.68 ft at 2:30AM Jul 24, 2021Observed: 1.67 ft at 2:45AM Jul 24, 2021Observed: 1.67 ft at 3:00AM Jul 24, 2021Observed: 1.67 ft at 3:15AM Jul 24, 2021Observed: 1.67 ft at 3:30AM Jul 24, 2021Observed: 1.66 ft at 3:45AM Jul 24, 2021Observed: 1.67 ft at 4:00AM Jul 24, 2021Observed: 1.68 ft at 4:15AM Jul 24, 2021Observed: 1.71 ft at 4:30AM Jul 24, 2021Observed: 1.74 ft at 4:45AM Jul 24, 2021Observed: 1.77 ft at 5:00AM Jul 24, 2021Observed: 1.78 ft at 5:15AM Jul 24, 2021Observed: 1.78 ft at 5:30AM Jul 24, 2021Observed: 1.77 ft at 5:45AM Jul 24, 2021Observed: 1.78 ft at 6:00AM Jul 24, 2021Observed: 1.77 ft at 6:15AM Jul 24, 2021Observed: 1.76 ft at 6:30AM Jul 24, 2021Observed: 1.75 ft at 6:45AM Jul 24, 2021Observed: 1.74 ft at 7:00AM Jul 24, 2021Observed: 1.73 ft at 7:15AM Jul 24, 2021Observed: 1.73 ft at 7:30AM Jul 24, 2021Observed: 1.72 ft at 7:45AM Jul 24, 2021Observed: 1.72 ft at 8:00AM Jul 24, 2021Observed: 1.71 ft at 8:15AM Jul 24, 2021Observed: 1.69 ft at 8:30AM Jul 24, 2021Observed: 1.69 ft at 8:45AM Jul 24, 2021Observed: 1.68 ft at 9:00AM Jul 24, 2021Observed: 1.67 ft at 9:15AM Jul 24, 2021Observed: 1.67 ft at 9:30AM Jul 24, 2021Observed: 1.67 ft at 9:45AM Jul 24, 2021Observed: 1.66 ft at 10:00AM Jul 24, 2021Observed: 1.66 ft at 10:15AM Jul 24, 2021Observed: 1.65 ft at 10:30AM Jul 24, 2021Observed: 1.65 ft at 10:45AM Jul 24, 2021Observed: 1.65 ft at 11:00AM Jul 24, 2021Observed: 1.65 ft at 11:15AM Jul 24, 2021Observed: 1.64 ft at 11:30AM Jul 24, 2021Observed: 1.64 ft at 11:45AM Jul 24, 2021Observed: 1.63 ft at 12:00PM Jul 24, 2021Observed: 1.63 ft at 12:15PM Jul 24, 2021Observed: 1.63 ft at 12:30PM Jul 24, 2021Observed: 1.63 ft at 12:45PM Jul 24, 2021Observed: 1.63 ft at 1:00PM Jul 24, 2021Observed: 1.63 ft at 1:15PM Jul 24, 2021Observed: 1.63 ft at 1:30PM Jul 24, 2021Observed: 1.63 ft at 1:45PM Jul 24, 2021Observed: 1.62 ft at 2:00PM Jul 24, 2021Observed: 1.62 ft at 2:15PM Jul 24, 2021Observed: 1.62 ft at 2:30PM Jul 24, 2021Observed: 1.62 ft at 2:45PM Jul 24, 2021Observed: 1.62 ft at 3:00PM Jul 24, 2021Observed: 1.62 ft at 3:15PM Jul 24, 2021Observed: 1.61 ft at 3:30PM Jul 24, 2021Observed: 1.61 ft at 3:45PM Jul 24, 2021Observed: 1.61 ft at 4:00PM Jul 24, 2021Observed: 1.61 ft at 4:15PM Jul 24, 2021Observed: 1.61 ft at 4:30PM Jul 24, 2021Observed: 1.61 ft at 4:45PM Jul 24, 2021Observed: 1.6 ft at 5:00PM Jul 24, 2021Observed: 1.59 ft at 5:15PM Jul 24, 2021Observed: 1.6 ft at 5:30PM Jul 24, 2021Observed: 1.59 ft at 5:45PM Jul 24, 2021Observed: 1.59 ft at 6:00PM Jul 24, 2021Observed: 1.59 ft at 6:15PM Jul 24, 2021Observed: 1.59 ft at 6:30PM Jul 24, 2021Observed: 1.59 ft at 6:45PM Jul 24, 2021Observed: 1.59 ft at 7:00PM Jul 24, 2021Observed: 1.58 ft at 7:15PM Jul 24, 2021Observed: 1.58 ft at 7:30PM Jul 24, 2021Observed: 1.58 ft at 7:45PM Jul 24, 2021Observed: 1.58 ft at 8:00PM Jul 24, 2021Observed: 1.57 ft at 8:15PM Jul 24, 2021Observed: 1.57 ft at 8:30PM Jul 24, 2021Observed: 1.57 ft at 8:45PM Jul 24, 2021Observed: 1.57 ft at 9:00PM Jul 24, 2021Observed: 1.57 ft at 9:15PM Jul 24, 2021Observed: 1.57 ft at 9:30PM Jul 24, 2021Observed: 1.57 ft at 9:45PM Jul 24, 2021Observed: 1.56 ft at 10:00PM Jul 24, 2021Observed: 1.56 ft at 10:15PM Jul 24, 2021Observed: 1.56 ft at 10:30PM Jul 24, 2021Observed: 1.56 ft at 10:45PM Jul 24, 2021Observed: 1.56 ft at 11:00PM Jul 24, 2021Observed: 1.57 ft at 11:15PM Jul 24, 2021Observed: 1.58 ft at 11:30PM Jul 24, 2021Observed: 1.6 ft at 11:45PM Jul 24, 2021Observed: 1.61 ft at 12:00AM Jul 25, 2021Observed: 1.61 ft at 12:15AM Jul 25, 2021Observed: 1.62 ft at 12:30AM Jul 25, 2021Observed: 1.63 ft at 12:45AM Jul 25, 2021Observed: 1.65 ft at 1:00AM Jul 25, 2021Observed: 1.66 ft at 1:15AM Jul 25, 2021Observed: 1.67 ft at 1:30AM Jul 25, 2021Observed: 1.68 ft at 1:45AM Jul 25, 2021Observed: 1.68 ft at 2:00AM Jul 25, 2021Observed: 1.67 ft at 2:15AM Jul 25, 2021Observed: 1.67 ft at 2:30AM Jul 25, 2021Observed: 1.67 ft at 2:45AM Jul 25, 2021Observed: 1.66 ft at 3:00AM Jul 25, 2021Observed: 1.66 ft at 3:15AM Jul 25, 2021Observed: 1.66 ft at 3:30AM Jul 25, 2021Observed: 1.67 ft at 3:45AM Jul 25, 2021Observed: 1.67 ft at 4:00AM Jul 25, 2021Observed: 1.68 ft at 4:15AM Jul 25, 2021Observed: 1.69 ft at 4:30AM Jul 25, 2021Observed: 1.69 ft at 4:45AM Jul 25, 2021Observed: 1.7 ft at 5:00AM Jul 25, 2021Observed: 1.7 ft at 5:15AM Jul 25, 2021Observed: 1.71 ft at 5:30AM Jul 25, 2021Observed: 1.71 ft at 5:45AM Jul 25, 2021Observed: 1.7 ft at 6:00AM Jul 25, 2021Observed: 1.7 ft at 6:15AM Jul 25, 2021Observed: 1.69 ft at 6:30AM Jul 25, 2021Observed: 1.68 ft at 6:45AM Jul 25, 2021Observed: 1.67 ft at 7:00AM Jul 25, 2021Observed: 1.67 ft at 7:15AM Jul 25, 2021Observed: 1.66 ft at 7:30AM Jul 25, 2021Observed: 1.66 ft at 7:45AM Jul 25, 2021Observed: 1.65 ft at 8:00AM Jul 25, 2021Observed: 1.65 ft at 8:15AM Jul 25, 2021Observed: 1.65 ft at 8:30AM Jul 25, 2021Observed: 1.64 ft at 8:45AM Jul 25, 2021Observed: 1.64 ft at 9:00AM Jul 25, 2021Observed: 1.64 ft at 9:15AM Jul 25, 2021Observed: 1.64 ft at 9:30AM Jul 25, 2021Observed: 1.64 ft at 9:45AM Jul 25, 2021Observed: 1.65 ft at 10:00AM Jul 25, 2021Observed: 1.64 ft at 10:15AM Jul 25, 2021Observed: 1.64 ft at 10:30AM Jul 25, 2021Observed: 1.65 ft at 10:45AM Jul 25, 2021Observed: 1.64 ft at 11:00AM Jul 25, 2021Observed: 1.65 ft at 11:15AM Jul 25, 2021Observed: 1.65 ft at 11:30AM Jul 25, 2021Observed: 1.65 ft at 11:45AM Jul 25, 2021Observed: 1.64 ft at 12:00PM Jul 25, 2021Observed: 1.64 ft at 12:15PM Jul 25, 2021Observed: 1.63 ft at 12:30PM Jul 25, 2021Observed: 1.63 ft at 12:45PM Jul 25, 2021Observed: 1.63 ft at 1:00PM Jul 25, 2021Observed: 1.62 ft at 1:15PM Jul 25, 2021Observed: 1.62 ft at 1:30PM Jul 25, 2021Observed: 1.61 ft at 1:45PM Jul 25, 2021Observed: 1.61 ft at 2:00PM Jul 25, 2021Observed: 1.61 ft at 2:15PM Jul 25, 2021Observed: 1.6 ft at 2:30PM Jul 25, 2021Observed: 1.6 ft at 2:45PM Jul 25, 2021Observed: 1.59 ft at 3:00PM Jul 25, 2021Observed: 1.59 ft at 3:15PM Jul 25, 2021Observed: 1.59 ft at 3:30PM Jul 25, 2021Observed: 1.59 ft at 3:45PM Jul 25, 2021Observed: 1.59 ft at 4:00PM Jul 25, 2021Observed: 1.58 ft at 4:15PM Jul 25, 2021Observed: 1.59 ft at 4:30PM Jul 25, 2021Observed: 1.58 ft at 4:45PM Jul 25, 2021Observed: 1.58 ft at 5:00PM Jul 25, 2021Observed: 1.57 ft at 5:15PM Jul 25, 2021Observed: 1.57 ft at 5:30PM Jul 25, 2021Observed: 1.57 ft at 5:45PM Jul 25, 2021Observed: 1.57 ft at 6:00PM Jul 25, 2021Observed: 1.57 ft at 6:15PM Jul 25, 2021Observed: 1.56 ft at 6:30PM Jul 25, 2021Observed: 1.55 ft at 6:45PM Jul 25, 2021Observed: 1.56 ft at 7:00PM Jul 25, 2021Observed: 1.55 ft at 7:15PM Jul 25, 2021Observed: 1.55 ft at 7:30PM Jul 25, 2021Observed: 1.55 ft at 7:45PM Jul 25, 2021Observed: 1.55 ft at 8:00PM Jul 25, 2021Observed: 1.55 ft at 8:15PM Jul 25, 2021Observed: 1.54 ft at 8:30PM Jul 25, 2021Observed: 1.53 ft at 8:45PM Jul 25, 2021Observed: 1.53 ft at 9:00PM Jul 25, 2021Observed: 1.52 ft at 9:15PM Jul 25, 2021Observed: 1.52 ft at 9:30PM Jul 25, 2021Observed: 1.52 ft at 9:45PM Jul 25, 2021Observed: 1.52 ft at 10:00PM Jul 25, 2021Observed: 1.54 ft at 10:15PM Jul 25, 2021Observed: 1.59 ft at 10:30PM Jul 25, 2021Observed: 1.71 ft at 10:45PM Jul 25, 2021Observed: 1.87 ft at 11:00PM Jul 25, 2021Observed: 2.01 ft at 11:15PM Jul 25, 2021Observed: 2.1 ft at 11:30PM Jul 25, 2021Observed: 2.16 ft at 11:45PM Jul 25, 2021Observed: 2.2 ft at 12:00AM Jul 26, 2021Observed: 2.23 ft at 12:15AM Jul 26, 2021Observed: 2.25 ft at 12:30AM Jul 26, 2021Observed: 2.26 ft at 12:45AM Jul 26, 2021Observed: 2.27 ft at 1:00AM Jul 26, 2021Observed: 2.27 ft at 1:15AM Jul 26, 2021Highest Observation: 2.29 ft at 1:30AM Jul 26, 2021Highest Observation: 2.29 ft at 1:45AM Jul 26, 2021Highest Observation: 2.29 ft at 2:00AM Jul 26, 2021Highest Observation: 2.29 ft at 2:15AM Jul 26, 2021Highest Observation: 2.29 ft at 2:30AM Jul 26, 2021Observed: 2.28 ft at 2:45AM Jul 26, 2021Observed: 2.27 ft at 3:00AM Jul 26, 2021Observed: 2.25 ft at 3:15AM Jul 26, 2021Observed: 2.23 ft at 3:30AM Jul 26, 2021Observed: 2.21 ft at 3:45AM Jul 26, 2021Observed: 2.19 ft at 4:00AM Jul 26, 2021Observed: 2.17 ft at 4:15AM Jul 26, 2021Observed: 2.15 ft at 4:30AM Jul 26, 2021Observed: 2.11 ft at 4:45AM Jul 26, 2021Observed: 2.1 ft at 5:00AM Jul 26, 2021Observed: 2.07 ft at 5:15AM Jul 26, 2021Observed: 2.05 ft at 5:30AM Jul 26, 2021Observed: 2.03 ft at 5:45AM Jul 26, 2021Observed: 2 ft at 6:00AM Jul 26, 2021Observed: 1.99 ft at 6:15AM Jul 26, 2021Observed: 1.97 ft at 6:30AM Jul 26, 2021Observed: 1.95 ft at 6:45AM Jul 26, 2021Observed: 1.93 ft at 7:00AM Jul 26, 2021Observed: 1.91 ft at 7:15AM Jul 26, 2021Observed: 1.9 ft at 7:30AM Jul 26, 2021Observed: 1.88 ft at 7:45AM Jul 26, 2021Observed: 1.87 ft at 8:00AM Jul 26, 2021Observed: 1.86 ft at 8:15AM Jul 26, 2021Observed: 1.85 ft at 8:30AM Jul 26, 2021Observed: 1.83 ft at 8:45AM Jul 26, 2021Observed: 1.79 ft at 10:00AM Jul 26, 2021Observed: 1.77 ft at 10:15AM Jul 26, 2021Observed: 1.77 ft at 10:30AM Jul 26, 2021Observed: 1.76 ft at 10:45AM Jul 26, 2021Observed: 1.75 ft at 11:00AM Jul 26, 2021Observed: 1.74 ft at 11:15AM Jul 26, 2021Observed: 1.73 ft at 11:30AM Jul 26, 2021Observed: 1.73 ft at 11:45AM Jul 26, 2021Observed: 1.72 ft at 12:00PM Jul 26, 2021Observed: 1.71 ft at 12:15PM Jul 26, 2021Observed: 1.71 ft at 12:30PM Jul 26, 2021Observed: 1.7 ft at 12:45PM Jul 26, 2021Observed: 1.69 ft at 1:00PM Jul 26, 2021Observed: 1.69 ft at 1:15PM Jul 26, 2021Observed: 1.68 ft at 1:30PM Jul 26, 2021Observed: 1.67 ft at 1:45PM Jul 26, 2021Observed: 1.67 ft at 2:00PM Jul 26, 2021Observed: 1.66 ft at 2:15PM Jul 26, 2021Observed: 1.65 ft at 2:30PM Jul 26, 2021Observed: 1.65 ft at 2:45PM Jul 26, 2021Observed: 1.64 ft at 3:00PM Jul 26, 2021Observed: 1.63 ft at 3:15PM Jul 26, 2021Observed: 1.63 ft at 3:30PM Jul 26, 2021Observed: 1.63 ft at 3:45PM Jul 26, 2021Observed: 1.63 ft at 4:00PM Jul 26, 2021Observed: 1.61 ft at 4:15PM Jul 26, 2021Observed: 1.61 ft at 4:30PM Jul 26, 2021Observed: 1.61 ft at 4:45PM Jul 26, 2021Observed: 1.61 ft at 5:00PM Jul 26, 2021Observed: 1.61 ft at 5:15PM Jul 26, 2021Observed: 1.59 ft at 5:30PM Jul 26, 2021Observed: 1.59 ft at 5:45PM Jul 26, 2021Observed: 1.58 ft at 6:00PM Jul 26, 2021Observed: 1.58 ft at 6:15PM Jul 26, 2021Observed: 1.57 ft at 6:30PM Jul 26, 2021Observed: 1.57 ft at 6:45PM Jul 26, 2021Observed: 1.57 ft at 7:00PM Jul 26, 2021Observed: 1.57 ft at 7:15PM Jul 26, 2021Observed: 1.56 ft at 7:30PM Jul 26, 2021Observed: 1.55 ft at 7:45PM Jul 26, 2021Observed: 1.55 ft at 8:00PM Jul 26, 2021Observed: 1.55 ft at 8:15PM Jul 26, 2021Observed: 1.55 ft at 8:30PM Jul 26, 2021Observed: 1.54 ft at 8:45PM Jul 26, 2021USGS--Water Resources of the United StatesDCNG1(plotting HGIRG) Graph Created (9:04PM Jul 26, 2021)ObservedLatest observed value: 1.54 ft at 8:45 PM EDT 26-Jul-2021. Flood Stage is 14 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
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 Lanier
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 18
Flood Stage: 14
Action Stage: 11
Low Stage (in feet): 0

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 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 1128.53 ft 1150.53 ft  

Current/Historical Observations:
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Collaborative Agencies Collapse
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
4 Falcon Drive
Peachtree City, GA 30269
(770) 486-1133
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