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Hydrograph River at a Glance Download
Chattahoochee River near Cornelia Stage (ft)Flow (kcfs)Observed: 1.17 ft at 5:00AM May 22, 2022Observed: 1.17 ft at 5:15AM May 22, 2022Observed: 1.17 ft at 5:30AM May 22, 2022Observed: 1.17 ft at 5:45AM May 22, 2022Observed: 1.17 ft at 6:00AM May 22, 2022Observed: 1.17 ft at 6:15AM May 22, 2022Observed: 1.17 ft at 6:30AM May 22, 2022Observed: 1.17 ft at 6:45AM May 22, 2022Observed: 1.16 ft at 7:00AM May 22, 2022Observed: 1.17 ft at 7:15AM May 22, 2022Observed: 1.16 ft at 7:30AM May 22, 2022Observed: 1.16 ft at 7:45AM May 22, 2022Observed: 1.17 ft at 8:00AM May 22, 2022Observed: 1.17 ft at 8:15AM May 22, 2022Observed: 1.17 ft at 8:30AM May 22, 2022Observed: 1.17 ft at 8:45AM May 22, 2022Observed: 1.17 ft at 9:00AM May 22, 2022Observed: 1.17 ft at 9:15AM May 22, 2022Observed: 1.17 ft at 9:30AM May 22, 2022Observed: 1.17 ft at 9:45AM May 22, 2022Observed: 1.17 ft at 10:00AM May 22, 2022Observed: 1.17 ft at 10:15AM May 22, 2022Observed: 1.17 ft at 10:30AM May 22, 2022Observed: 1.17 ft at 10:45AM May 22, 2022Observed: 1.17 ft at 11:00AM May 22, 2022Observed: 1.18 ft at 11:15AM May 22, 2022Observed: 1.17 ft at 11:30AM May 22, 2022Observed: 1.17 ft at 11:45AM May 22, 2022Observed: 1.18 ft at 12:00PM May 22, 2022Observed: 1.18 ft at 12:15PM May 22, 2022Observed: 1.18 ft at 12:30PM May 22, 2022Observed: 1.18 ft at 12:45PM May 22, 2022Observed: 1.19 ft at 1:00PM May 22, 2022Observed: 1.19 ft at 1:15PM May 22, 2022Observed: 1.19 ft at 1:30PM May 22, 2022Observed: 1.19 ft at 1:45PM May 22, 2022Observed: 1.19 ft at 2:00PM May 22, 2022Observed: 1.19 ft at 2:15PM May 22, 2022Observed: 1.19 ft at 2:30PM May 22, 2022Observed: 1.19 ft at 2:45PM May 22, 2022Observed: 1.19 ft at 3:00PM May 22, 2022Observed: 1.19 ft at 3:15PM May 22, 2022Observed: 1.19 ft at 3:30PM May 22, 2022Observed: 1.19 ft at 3:45PM May 22, 2022Observed: 1.19 ft at 4:00PM May 22, 2022Observed: 1.19 ft at 4:15PM May 22, 2022Observed: 1.19 ft at 4:30PM May 22, 2022Observed: 1.19 ft at 4:45PM May 22, 2022Observed: 1.19 ft at 5:00PM May 22, 2022Observed: 1.2 ft at 5:15PM May 22, 2022Observed: 1.2 ft at 5:30PM May 22, 2022Observed: 1.2 ft at 5:45PM May 22, 2022Observed: 1.2 ft at 6:00PM May 22, 2022Observed: 1.2 ft at 6:15PM May 22, 2022Observed: 1.2 ft at 6:30PM May 22, 2022Observed: 1.2 ft at 6:45PM May 22, 2022Observed: 1.2 ft at 7:00PM May 22, 2022Observed: 1.2 ft at 7:15PM May 22, 2022Observed: 1.19 ft at 7:30PM May 22, 2022Observed: 1.18 ft at 7:45PM May 22, 2022Observed: 1.18 ft at 8:00PM May 22, 2022Observed: 1.18 ft at 8:15PM May 22, 2022Observed: 1.18 ft at 8:30PM May 22, 2022Observed: 1.18 ft at 8:45PM May 22, 2022Observed: 1.18 ft at 9:00PM May 22, 2022Observed: 1.18 ft at 9:15PM May 22, 2022Observed: 1.18 ft at 9:30PM May 22, 2022Observed: 1.17 ft at 9:45PM May 22, 2022Observed: 1.17 ft at 10:00PM May 22, 2022Observed: 1.17 ft at 10:15PM May 22, 2022Observed: 1.17 ft at 10:30PM May 22, 2022Observed: 1.17 ft at 10:45PM May 22, 2022Observed: 1.17 ft at 11:00PM May 22, 2022Observed: 1.17 ft at 11:15PM May 22, 2022Observed: 1.17 ft at 11:30PM May 22, 2022Observed: 1.16 ft at 11:45PM May 22, 2022Observed: 1.16 ft at 12:00AM May 23, 2022Observed: 1.16 ft at 12:15AM May 23, 2022Observed: 1.16 ft at 12:30AM May 23, 2022Observed: 1.16 ft at 12:45AM May 23, 2022Observed: 1.16 ft at 1:00AM May 23, 2022Observed: 1.16 ft at 1:15AM May 23, 2022Observed: 1.17 ft at 1:30AM May 23, 2022Observed: 1.17 ft at 1:45AM May 23, 2022Observed: 1.16 ft at 2:00AM May 23, 2022Observed: 1.16 ft at 2:15AM May 23, 2022Observed: 1.16 ft at 2:30AM May 23, 2022Observed: 1.16 ft at 2:45AM May 23, 2022Observed: 1.16 ft at 3:00AM May 23, 2022Observed: 1.16 ft at 3:15AM May 23, 2022Observed: 1.16 ft at 3:30AM May 23, 2022Observed: 1.16 ft at 3:45AM May 23, 2022Observed: 1.16 ft at 4:00AM May 23, 2022Observed: 1.16 ft at 4:15AM May 23, 2022Observed: 1.16 ft at 4:30AM May 23, 2022Observed: 1.16 ft at 4:45AM May 23, 2022Observed: 1.16 ft at 5:00AM May 23, 2022Observed: 1.15 ft at 5:15AM May 23, 2022Observed: 1.16 ft at 5:30AM May 23, 2022Observed: 1.16 ft at 5:45AM May 23, 2022Observed: 1.16 ft at 6:00AM May 23, 2022Observed: 1.16 ft at 6:15AM May 23, 2022Observed: 1.16 ft at 6:30AM May 23, 2022Observed: 1.16 ft at 6:45AM May 23, 2022Observed: 1.15 ft at 7:00AM May 23, 2022Observed: 1.15 ft at 7:15AM May 23, 2022Observed: 1.15 ft at 7:30AM May 23, 2022Observed: 1.16 ft at 7:45AM May 23, 2022Observed: 1.16 ft at 8:00AM May 23, 2022Observed: 1.17 ft at 8:15AM May 23, 2022Observed: 1.18 ft at 8:30AM May 23, 2022Observed: 1.18 ft at 8:45AM May 23, 2022Observed: 1.19 ft at 9:00AM May 23, 2022Observed: 1.21 ft at 9:15AM May 23, 2022Observed: 1.21 ft at 9:30AM May 23, 2022Observed: 1.23 ft at 9:45AM May 23, 2022Observed: 1.25 ft at 10:00AM May 23, 2022Observed: 1.25 ft at 10:15AM May 23, 2022Observed: 1.26 ft at 10:30AM May 23, 2022Observed: 1.27 ft at 10:45AM May 23, 2022Observed: 1.28 ft at 11:00AM May 23, 2022Observed: 1.3 ft at 11:15AM May 23, 2022Observed: 1.31 ft at 11:30AM May 23, 2022Observed: 1.35 ft at 11:45AM May 23, 2022Observed: 1.37 ft at 12:00PM May 23, 2022Observed: 1.4 ft at 12:15PM May 23, 2022Observed: 1.41 ft at 12:30PM May 23, 2022Observed: 1.44 ft at 12:45PM May 23, 2022Observed: 1.45 ft at 1:00PM May 23, 2022Observed: 1.48 ft at 1:15PM May 23, 2022Observed: 1.5 ft at 1:30PM May 23, 2022Observed: 1.53 ft at 1:45PM May 23, 2022Observed: 1.55 ft at 2:00PM May 23, 2022Observed: 1.58 ft at 2:15PM May 23, 2022Observed: 1.6 ft at 2:30PM May 23, 2022Observed: 1.62 ft at 2:45PM May 23, 2022Observed: 1.65 ft at 3:00PM May 23, 2022Observed: 1.68 ft at 3:15PM May 23, 2022Observed: 1.71 ft at 3:30PM May 23, 2022Observed: 1.75 ft at 3:45PM May 23, 2022Observed: 1.78 ft at 4:00PM May 23, 2022Observed: 1.81 ft at 4:15PM May 23, 2022Observed: 1.85 ft at 4:30PM May 23, 2022Observed: 1.88 ft at 4:45PM May 23, 2022Observed: 1.91 ft at 5:00PM May 23, 2022Observed: 1.94 ft at 5:15PM May 23, 2022Observed: 1.96 ft at 5:30PM May 23, 2022Observed: 1.98 ft at 5:45PM May 23, 2022Observed: 2.01 ft at 6:00PM May 23, 2022Observed: 2.04 ft at 6:15PM May 23, 2022Observed: 2.07 ft at 6:30PM May 23, 2022Observed: 2.11 ft at 6:45PM May 23, 2022Observed: 2.13 ft at 7:00PM May 23, 2022Observed: 2.17 ft at 7:15PM May 23, 2022Observed: 2.2 ft at 7:30PM May 23, 2022Observed: 2.23 ft at 7:45PM May 23, 2022Observed: 2.25 ft at 8:00PM May 23, 2022Observed: 2.28 ft at 8:15PM May 23, 2022Observed: 2.31 ft at 8:30PM May 23, 2022Observed: 2.35 ft at 8:45PM May 23, 2022Observed: 2.37 ft at 9:00PM May 23, 2022Observed: 2.39 ft at 9:15PM May 23, 2022Highest Observation: 2.41 ft at 9:30PM May 23, 2022Observed: 2.4 ft at 9:45PM May 23, 2022Observed: 2.4 ft at 10:00PM May 23, 2022Observed: 2.39 ft at 10:15PM May 23, 2022Observed: 2.37 ft at 10:30PM May 23, 2022Observed: 2.35 ft at 10:45PM May 23, 2022Observed: 2.33 ft at 11:00PM May 23, 2022Observed: 2.3 ft at 11:15PM May 23, 2022Observed: 2.27 ft at 11:30PM May 23, 2022Observed: 2.26 ft at 11:45PM May 23, 2022Observed: 2.23 ft at 12:00AM May 24, 2022Observed: 2.21 ft at 12:15AM May 24, 2022Observed: 2.18 ft at 12:30AM May 24, 2022Observed: 2.17 ft at 12:45AM May 24, 2022Observed: 2.16 ft at 1:00AM May 24, 2022Observed: 2.15 ft at 1:15AM May 24, 2022Observed: 2.13 ft at 1:30AM May 24, 2022Observed: 2.11 ft at 1:45AM May 24, 2022Observed: 2.09 ft at 2:00AM May 24, 2022Observed: 2.08 ft at 2:15AM May 24, 2022Observed: 2.06 ft at 2:30AM May 24, 2022Observed: 2.05 ft at 2:45AM May 24, 2022Observed: 2.03 ft at 3:00AM May 24, 2022Observed: 2.01 ft at 3:15AM May 24, 2022Observed: 2 ft at 3:30AM May 24, 2022Observed: 1.98 ft at 3:45AM May 24, 2022Observed: 1.97 ft at 4:00AM May 24, 2022Observed: 1.95 ft at 4:15AM May 24, 2022Observed: 1.94 ft at 4:30AM May 24, 2022Observed: 1.93 ft at 4:45AM May 24, 2022Observed: 1.91 ft at 5:00AM May 24, 2022Observed: 1.9 ft at 5:15AM May 24, 2022Observed: 1.89 ft at 5:30AM May 24, 2022Observed: 1.87 ft at 5:45AM May 24, 2022Observed: 1.85 ft at 6:00AM May 24, 2022Observed: 1.84 ft at 6:15AM May 24, 2022Observed: 1.83 ft at 6:30AM May 24, 2022Observed: 1.82 ft at 6:45AM May 24, 2022Observed: 1.81 ft at 7:00AM May 24, 2022Observed: 1.79 ft at 7:15AM May 24, 2022Observed: 1.77 ft at 7:30AM May 24, 2022Observed: 1.76 ft at 7:45AM May 24, 2022Observed: 1.76 ft at 8:00AM May 24, 2022Observed: 1.73 ft at 8:15AM May 24, 2022Observed: 1.72 ft at 8:30AM May 24, 2022Observed: 1.71 ft at 8:45AM May 24, 2022Observed: 1.7 ft at 9:00AM May 24, 2022Observed: 1.69 ft at 9:15AM May 24, 2022Observed: 1.69 ft at 9:30AM May 24, 2022Observed: 1.68 ft at 9:45AM May 24, 2022Observed: 1.67 ft at 10:00AM May 24, 2022Observed: 1.67 ft at 10:15AM May 24, 2022Observed: 1.66 ft at 10:30AM May 24, 2022Observed: 1.65 ft at 10:45AM May 24, 2022Observed: 1.64 ft at 11:00AM May 24, 2022Observed: 1.63 ft at 11:15AM May 24, 2022Observed: 1.63 ft at 11:30AM May 24, 2022Observed: 1.62 ft at 11:45AM May 24, 2022Observed: 1.61 ft at 12:00PM May 24, 2022Observed: 1.61 ft at 12:15PM May 24, 2022Observed: 1.6 ft at 12:30PM May 24, 2022Observed: 1.59 ft at 12:45PM May 24, 2022Observed: 1.59 ft at 1:00PM May 24, 2022Observed: 1.59 ft at 1:15PM May 24, 2022Observed: 1.58 ft at 1:30PM May 24, 2022Observed: 1.57 ft at 1:45PM May 24, 2022Observed: 1.57 ft at 2:00PM May 24, 2022Observed: 1.57 ft at 2:15PM May 24, 2022Observed: 1.56 ft at 2:30PM May 24, 2022Observed: 1.56 ft at 2:45PM May 24, 2022Observed: 1.56 ft at 3:00PM May 24, 2022Observed: 1.55 ft at 3:15PM May 24, 2022Observed: 1.55 ft at 3:30PM May 24, 2022Observed: 1.55 ft at 3:45PM May 24, 2022Observed: 1.54 ft at 4:00PM May 24, 2022Observed: 1.54 ft at 4:15PM May 24, 2022Observed: 1.54 ft at 4:30PM May 24, 2022Observed: 1.53 ft at 4:45PM May 24, 2022Observed: 1.53 ft at 5:00PM May 24, 2022Observed: 1.52 ft at 5:15PM May 24, 2022Observed: 1.51 ft at 5:30PM May 24, 2022Observed: 1.51 ft at 5:45PM May 24, 2022Observed: 1.5 ft at 6:00PM May 24, 2022Observed: 1.5 ft at 6:15PM May 24, 2022Observed: 1.49 ft at 6:30PM May 24, 2022Observed: 1.49 ft at 6:45PM May 24, 2022Observed: 1.49 ft at 7:00PM May 24, 2022Observed: 1.48 ft at 7:15PM May 24, 2022Observed: 1.47 ft at 7:30PM May 24, 2022Observed: 1.47 ft at 7:45PM May 24, 2022Observed: 1.47 ft at 8:00PM May 24, 2022Observed: 1.47 ft at 8:15PM May 24, 2022Observed: 1.47 ft at 8:30PM May 24, 2022Observed: 1.47 ft at 8:45PM May 24, 2022Observed: 1.47 ft at 9:00PM May 24, 2022Observed: 1.47 ft at 9:15PM May 24, 2022Observed: 1.46 ft at 9:30PM May 24, 2022Observed: 1.46 ft at 9:45PM May 24, 2022Observed: 1.45 ft at 10:00PM May 24, 2022Observed: 1.45 ft at 10:15PM May 24, 2022Observed: 1.45 ft at 10:30PM May 24, 2022Observed: 1.45 ft at 10:45PM May 24, 2022Observed: 1.44 ft at 11:00PM May 24, 2022Observed: 1.44 ft at 11:15PM May 24, 2022Observed: 1.44 ft at 11:30PM May 24, 2022Observed: 1.44 ft at 11:45PM May 24, 2022Observed: 1.43 ft at 12:00AM May 25, 2022Observed: 1.42 ft at 12:15AM May 25, 2022Observed: 1.42 ft at 12:30AM May 25, 2022Observed: 1.42 ft at 12:45AM May 25, 2022Observed: 1.41 ft at 1:00AM May 25, 2022Observed: 1.41 ft at 1:15AM May 25, 2022Observed: 1.41 ft at 1:30AM May 25, 2022Observed: 1.41 ft at 1:45AM May 25, 2022Observed: 1.41 ft at 2:00AM May 25, 2022Observed: 1.41 ft at 2:15AM May 25, 2022Observed: 1.41 ft at 2:30AM May 25, 2022Observed: 1.41 ft at 2:45AM May 25, 2022Observed: 1.41 ft at 3:00AM May 25, 2022Observed: 1.41 ft at 3:15AM May 25, 2022Observed: 1.41 ft at 3:30AM May 25, 2022Observed: 1.41 ft at 3:45AM May 25, 2022USGS--Water Resources of the United StatesDCNG1(plotting HGIRG) Graph Created (4:49AM May 25, 2022)ObservedLatest observed value: 1.41 ft at 3:45 AM EDT 25-May-2022. Flood Stage is 14 ft
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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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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
4 Falcon Drive
Peachtree City, GA 30269
(770) 486-1133
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