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Hydrograph River at a Glance Download
Chattahoochee River near Cornelia Stage (ft)Flow (kcfs)Observed: 0.91 ft at 2:45AM Aug 03, 2020Observed: 0.91 ft at 3:00AM Aug 03, 2020Observed: 0.91 ft at 3:15AM Aug 03, 2020Observed: 0.91 ft at 3:30AM Aug 03, 2020Observed: 0.91 ft at 3:45AM Aug 03, 2020Observed: 0.91 ft at 4:00AM Aug 03, 2020Observed: 0.91 ft at 4:15AM Aug 03, 2020Observed: 0.91 ft at 4:30AM Aug 03, 2020Observed: 0.9 ft at 4:45AM Aug 03, 2020Observed: 0.9 ft at 5:00AM Aug 03, 2020Observed: 0.91 ft at 5:15AM Aug 03, 2020Observed: 0.9 ft at 5:30AM Aug 03, 2020Observed: 0.91 ft at 5:45AM Aug 03, 2020Observed: 0.91 ft at 6:00AM Aug 03, 2020Observed: 0.91 ft at 6:15AM Aug 03, 2020Observed: 0.92 ft at 6:30AM Aug 03, 2020Observed: 0.92 ft at 6:45AM Aug 03, 2020Observed: 0.91 ft at 7:00AM Aug 03, 2020Observed: 0.91 ft at 7:15AM Aug 03, 2020Observed: 0.91 ft at 7:30AM Aug 03, 2020Observed: 0.91 ft at 7:45AM Aug 03, 2020Observed: 0.91 ft at 8:00AM Aug 03, 2020Observed: 0.92 ft at 8:15AM Aug 03, 2020Observed: 0.92 ft at 8:30AM Aug 03, 2020Observed: 0.92 ft at 8:45AM Aug 03, 2020Observed: 0.92 ft at 9:00AM Aug 03, 2020Observed: 0.92 ft at 9:15AM Aug 03, 2020Observed: 0.92 ft at 9:30AM Aug 03, 2020Observed: 0.93 ft at 9:45AM Aug 03, 2020Observed: 0.94 ft at 10:00AM Aug 03, 2020Observed: 0.94 ft at 10:15AM Aug 03, 2020Observed: 0.94 ft at 10:30AM Aug 03, 2020Observed: 0.94 ft at 10:45AM Aug 03, 2020Observed: 0.94 ft at 11:00AM Aug 03, 2020Observed: 0.94 ft at 11:15AM Aug 03, 2020Observed: 0.94 ft at 11:30AM Aug 03, 2020Observed: 0.94 ft at 11:45AM Aug 03, 2020Observed: 0.94 ft at 12:00PM Aug 03, 2020Observed: 0.94 ft at 12:15PM Aug 03, 2020Observed: 0.94 ft at 12:30PM Aug 03, 2020Observed: 0.94 ft at 12:45PM Aug 03, 2020Observed: 0.94 ft at 1:00PM Aug 03, 2020Observed: 0.95 ft at 1:15PM Aug 03, 2020Observed: 0.95 ft at 1:30PM Aug 03, 2020Observed: 0.95 ft at 1:45PM Aug 03, 2020Observed: 0.95 ft at 2:00PM Aug 03, 2020Observed: 0.94 ft at 2:15PM Aug 03, 2020Observed: 0.95 ft at 2:30PM Aug 03, 2020Observed: 0.95 ft at 2:45PM Aug 03, 2020Observed: 0.93 ft at 3:00PM Aug 03, 2020Observed: 0.93 ft at 3:15PM Aug 03, 2020Observed: 0.93 ft at 3:30PM Aug 03, 2020Observed: 0.93 ft at 3:45PM Aug 03, 2020Observed: 1.03 ft at 4:00PM Aug 03, 2020Observed: 1.06 ft at 4:15PM Aug 03, 2020Observed: 1.06 ft at 4:30PM Aug 03, 2020Observed: 1.09 ft at 4:45PM Aug 03, 2020Observed: 1.11 ft at 5:00PM Aug 03, 2020Observed: 1.11 ft at 5:15PM Aug 03, 2020Observed: 1.1 ft at 5:30PM Aug 03, 2020Observed: 1.1 ft at 5:45PM Aug 03, 2020Observed: 1.09 ft at 6:00PM Aug 03, 2020Observed: 1.09 ft at 6:15PM Aug 03, 2020Observed: 1.09 ft at 6:30PM Aug 03, 2020Observed: 1.1 ft at 6:45PM Aug 03, 2020Observed: 1.11 ft at 7:00PM Aug 03, 2020Observed: 1.12 ft at 7:15PM Aug 03, 2020Observed: 1.14 ft at 7:30PM Aug 03, 2020Observed: 1.15 ft at 7:45PM Aug 03, 2020Observed: 1.16 ft at 8:00PM Aug 03, 2020Observed: 1.18 ft at 8:15PM Aug 03, 2020Observed: 1.19 ft at 8:30PM Aug 03, 2020Observed: 1.2 ft at 8:45PM Aug 03, 2020Observed: 1.22 ft at 9:00PM Aug 03, 2020Observed: 1.23 ft at 9:15PM Aug 03, 2020Observed: 1.26 ft at 9:30PM Aug 03, 2020Observed: 1.28 ft at 9:45PM Aug 03, 2020Observed: 1.29 ft at 10:00PM Aug 03, 2020Observed: 1.32 ft at 10:15PM Aug 03, 2020Observed: 1.35 ft at 10:30PM Aug 03, 2020Observed: 1.4 ft at 10:45PM Aug 03, 2020Observed: 1.46 ft at 11:00PM Aug 03, 2020Observed: 1.5 ft at 11:15PM Aug 03, 2020Observed: 1.52 ft at 11:30PM Aug 03, 2020Observed: 1.56 ft at 11:45PM Aug 03, 2020Observed: 1.57 ft at 12:00AM Aug 04, 2020Highest Observation: 1.58 ft at 12:15AM Aug 04, 2020Highest Observation: 1.58 ft at 12:30AM Aug 04, 2020Highest Observation: 1.58 ft at 12:45AM Aug 04, 2020Highest Observation: 1.58 ft at 1:00AM Aug 04, 2020Highest Observation: 1.58 ft at 1:15AM Aug 04, 2020Highest Observation: 1.58 ft at 1:30AM Aug 04, 2020Highest Observation: 1.58 ft at 1:45AM Aug 04, 2020Observed: 1.57 ft at 2:00AM Aug 04, 2020Observed: 1.56 ft at 2:15AM Aug 04, 2020Observed: 1.56 ft at 2:30AM Aug 04, 2020Observed: 1.56 ft at 2:45AM Aug 04, 2020Observed: 1.54 ft at 3:00AM Aug 04, 2020Observed: 1.54 ft at 3:15AM Aug 04, 2020Observed: 1.52 ft at 3:30AM Aug 04, 2020Observed: 1.52 ft at 3:45AM Aug 04, 2020Observed: 1.51 ft at 4:00AM Aug 04, 2020Observed: 1.5 ft at 4:15AM Aug 04, 2020Observed: 1.48 ft at 4:30AM Aug 04, 2020Observed: 1.47 ft at 4:45AM Aug 04, 2020Observed: 1.46 ft at 5:00AM Aug 04, 2020Observed: 1.45 ft at 5:15AM Aug 04, 2020Observed: 1.44 ft at 5:30AM Aug 04, 2020Observed: 1.42 ft at 5:45AM Aug 04, 2020Observed: 1.42 ft at 6:00AM Aug 04, 2020Observed: 1.4 ft at 6:15AM Aug 04, 2020Observed: 1.4 ft at 6:30AM Aug 04, 2020Observed: 1.38 ft at 6:45AM Aug 04, 2020Observed: 1.36 ft at 7:00AM Aug 04, 2020Observed: 1.36 ft at 7:15AM Aug 04, 2020Observed: 1.34 ft at 7:30AM Aug 04, 2020Observed: 1.33 ft at 7:45AM Aug 04, 2020Observed: 1.32 ft at 8:00AM Aug 04, 2020Observed: 1.32 ft at 8:15AM Aug 04, 2020Observed: 1.31 ft at 8:30AM Aug 04, 2020Observed: 1.3 ft at 8:45AM Aug 04, 2020Observed: 1.29 ft at 9:00AM Aug 04, 2020Observed: 1.29 ft at 9:15AM Aug 04, 2020Observed: 1.28 ft at 9:30AM Aug 04, 2020Observed: 1.28 ft at 9:45AM Aug 04, 2020Observed: 1.28 ft at 10:00AM Aug 04, 2020Observed: 1.27 ft at 10:15AM Aug 04, 2020Observed: 1.26 ft at 10:30AM Aug 04, 2020Observed: 1.26 ft at 10:45AM Aug 04, 2020Observed: 1.25 ft at 11:00AM Aug 04, 2020Observed: 1.24 ft at 11:15AM Aug 04, 2020Observed: 1.24 ft at 11:30AM Aug 04, 2020Observed: 1.23 ft at 11:45AM Aug 04, 2020Observed: 1.22 ft at 12:00PM Aug 04, 2020Observed: 1.21 ft at 12:15PM Aug 04, 2020Observed: 1.2 ft at 12:30PM Aug 04, 2020Observed: 1.2 ft at 12:45PM Aug 04, 2020Observed: 1.2 ft at 1:00PM Aug 04, 2020Observed: 1.19 ft at 1:15PM Aug 04, 2020Observed: 1.19 ft at 1:30PM Aug 04, 2020Observed: 1.19 ft at 1:45PM Aug 04, 2020Observed: 1.18 ft at 2:00PM Aug 04, 2020Observed: 1.17 ft at 2:15PM Aug 04, 2020Observed: 1.17 ft at 2:30PM Aug 04, 2020Observed: 1.16 ft at 2:45PM Aug 04, 2020Observed: 1.16 ft at 3:00PM Aug 04, 2020Observed: 1.16 ft at 3:15PM Aug 04, 2020Observed: 1.16 ft at 3:30PM Aug 04, 2020Observed: 1.16 ft at 3:45PM Aug 04, 2020Observed: 1.16 ft at 4:00PM Aug 04, 2020Observed: 1.16 ft at 4:15PM Aug 04, 2020Observed: 1.16 ft at 4:30PM Aug 04, 2020Observed: 1.16 ft at 4:45PM Aug 04, 2020Observed: 1.15 ft at 5:00PM Aug 04, 2020Observed: 1.15 ft at 5:15PM Aug 04, 2020Observed: 1.14 ft at 5:30PM Aug 04, 2020Observed: 1.14 ft at 5:45PM Aug 04, 2020Observed: 1.14 ft at 6:00PM Aug 04, 2020Observed: 1.13 ft at 6:15PM Aug 04, 2020Observed: 1.12 ft at 6:30PM Aug 04, 2020Observed: 1.11 ft at 6:45PM Aug 04, 2020Observed: 1.11 ft at 7:00PM Aug 04, 2020Observed: 1.1 ft at 7:15PM Aug 04, 2020Observed: 1.1 ft at 7:30PM Aug 04, 2020Observed: 1.1 ft at 7:45PM Aug 04, 2020Observed: 1.09 ft at 8:00PM Aug 04, 2020Observed: 1.09 ft at 8:15PM Aug 04, 2020Observed: 1.08 ft at 8:30PM Aug 04, 2020Observed: 1.08 ft at 8:45PM Aug 04, 2020Observed: 1.08 ft at 9:00PM Aug 04, 2020Observed: 1.08 ft at 9:15PM Aug 04, 2020Observed: 1.08 ft at 9:30PM Aug 04, 2020Observed: 1.08 ft at 9:45PM Aug 04, 2020Observed: 1.08 ft at 10:00PM Aug 04, 2020Observed: 1.08 ft at 10:15PM Aug 04, 2020Observed: 1.08 ft at 10:30PM Aug 04, 2020Observed: 1.08 ft at 10:45PM Aug 04, 2020Observed: 1.07 ft at 11:00PM Aug 04, 2020Observed: 1.07 ft at 11:15PM Aug 04, 2020Observed: 1.06 ft at 11:30PM Aug 04, 2020Observed: 1.07 ft at 11:45PM Aug 04, 2020Observed: 1.06 ft at 12:00AM Aug 05, 2020Observed: 1.06 ft at 12:15AM Aug 05, 2020Observed: 1.06 ft at 12:30AM Aug 05, 2020Observed: 1.06 ft at 12:45AM Aug 05, 2020Observed: 1.06 ft at 1:00AM Aug 05, 2020Observed: 1.08 ft at 1:15AM Aug 05, 2020Observed: 1.09 ft at 1:30AM Aug 05, 2020Observed: 1.1 ft at 1:45AM Aug 05, 2020Observed: 1.1 ft at 2:00AM Aug 05, 2020Observed: 1.11 ft at 2:15AM Aug 05, 2020Observed: 1.12 ft at 2:30AM Aug 05, 2020Observed: 1.12 ft at 2:45AM Aug 05, 2020Observed: 1.12 ft at 3:00AM Aug 05, 2020Observed: 1.12 ft at 3:15AM Aug 05, 2020Observed: 1.12 ft at 3:30AM Aug 05, 2020Observed: 1.12 ft at 3:45AM Aug 05, 2020Observed: 1.12 ft at 4:00AM Aug 05, 2020Observed: 1.12 ft at 4:15AM Aug 05, 2020Observed: 1.12 ft at 4:30AM Aug 05, 2020Observed: 1.12 ft at 4:45AM Aug 05, 2020Observed: 1.12 ft at 5:00AM Aug 05, 2020Observed: 1.11 ft at 5:15AM Aug 05, 2020Observed: 1.11 ft at 5:30AM Aug 05, 2020Observed: 1.12 ft at 5:45AM Aug 05, 2020Observed: 1.12 ft at 6:00AM Aug 05, 2020Observed: 1.13 ft at 6:15AM Aug 05, 2020Observed: 1.14 ft at 6:30AM Aug 05, 2020Observed: 1.14 ft at 6:45AM Aug 05, 2020Observed: 1.15 ft at 7:00AM Aug 05, 2020Observed: 1.16 ft at 7:15AM Aug 05, 2020Observed: 1.16 ft at 7:30AM Aug 05, 2020Observed: 1.16 ft at 7:45AM Aug 05, 2020Observed: 1.16 ft at 8:00AM Aug 05, 2020Observed: 1.15 ft at 8:15AM Aug 05, 2020Observed: 1.15 ft at 8:30AM Aug 05, 2020Observed: 1.15 ft at 8:45AM Aug 05, 2020Observed: 1.14 ft at 9:00AM Aug 05, 2020Observed: 1.14 ft at 9:15AM Aug 05, 2020Observed: 1.14 ft at 9:30AM Aug 05, 2020Observed: 1.14 ft at 9:45AM Aug 05, 2020Observed: 1.13 ft at 10:00AM Aug 05, 2020Observed: 1.12 ft at 10:15AM Aug 05, 2020Observed: 1.12 ft at 10:30AM Aug 05, 2020Observed: 1.12 ft at 10:45AM Aug 05, 2020Observed: 1.12 ft at 11:00AM Aug 05, 2020Observed: 1.12 ft at 11:15AM Aug 05, 2020Observed: 1.12 ft at 11:30AM Aug 05, 2020Observed: 1.12 ft at 11:45AM Aug 05, 2020Observed: 1.12 ft at 12:00PM Aug 05, 2020Observed: 1.11 ft at 12:15PM Aug 05, 2020Observed: 1.12 ft at 12:30PM Aug 05, 2020Observed: 1.11 ft at 12:45PM Aug 05, 2020Observed: 1.11 ft at 1:00PM Aug 05, 2020Observed: 1.11 ft at 1:15PM Aug 05, 2020Observed: 1.12 ft at 1:30PM Aug 05, 2020Observed: 1.12 ft at 1:45PM Aug 05, 2020Observed: 1.12 ft at 2:00PM Aug 05, 2020Observed: 1.12 ft at 2:15PM Aug 05, 2020Observed: 1.12 ft at 2:30PM Aug 05, 2020Observed: 1.12 ft at 2:45PM Aug 05, 2020Observed: 1.11 ft at 3:00PM Aug 05, 2020Observed: 1.11 ft at 3:15PM Aug 05, 2020Observed: 1.11 ft at 3:30PM Aug 05, 2020Observed: 1.1 ft at 3:45PM Aug 05, 2020Observed: 1.09 ft at 4:00PM Aug 05, 2020Observed: 1.09 ft at 4:15PM Aug 05, 2020Observed: 1.09 ft at 4:30PM Aug 05, 2020Observed: 1.09 ft at 4:45PM Aug 05, 2020Observed: 1.09 ft at 5:00PM Aug 05, 2020Observed: 1.09 ft at 5:15PM Aug 05, 2020Observed: 1.08 ft at 5:30PM Aug 05, 2020Observed: 1.08 ft at 5:45PM Aug 05, 2020Observed: 1.08 ft at 6:00PM Aug 05, 2020Observed: 1.08 ft at 6:15PM Aug 05, 2020Observed: 1.09 ft at 6:30PM Aug 05, 2020Observed: 1.1 ft at 6:45PM Aug 05, 2020Observed: 1.11 ft at 7:00PM Aug 05, 2020Observed: 1.13 ft at 7:15PM Aug 05, 2020Observed: 1.15 ft at 7:30PM Aug 05, 2020Observed: 1.17 ft at 7:45PM Aug 05, 2020Observed: 1.19 ft at 8:00PM Aug 05, 2020Observed: 1.21 ft at 8:15PM Aug 05, 2020Observed: 1.23 ft at 8:30PM Aug 05, 2020Observed: 1.25 ft at 8:45PM Aug 05, 2020Observed: 1.27 ft at 9:00PM Aug 05, 2020Observed: 1.28 ft at 9:15PM Aug 05, 2020Observed: 1.3 ft at 9:30PM Aug 05, 2020Observed: 1.3 ft at 9:45PM Aug 05, 2020Observed: 1.3 ft at 10:00PM Aug 05, 2020Observed: 1.3 ft at 10:15PM Aug 05, 2020Observed: 1.3 ft at 10:30PM Aug 05, 2020Observed: 1.3 ft at 10:45PM Aug 05, 2020Observed: 1.3 ft at 11:00PM Aug 05, 2020Observed: 1.29 ft at 11:15PM Aug 05, 2020Observed: 1.29 ft at 11:30PM Aug 05, 2020Observed: 1.28 ft at 11:45PM Aug 05, 2020Observed: 1.28 ft at 12:00AM Aug 06, 2020Observed: 1.27 ft at 12:15AM Aug 06, 2020Observed: 1.26 ft at 12:30AM Aug 06, 2020Observed: 1.25 ft at 12:45AM Aug 06, 2020Observed: 1.24 ft at 1:00AM Aug 06, 2020Observed: 1.23 ft at 1:15AM Aug 06, 2020Observed: 1.22 ft at 1:30AM Aug 06, 2020Observed: 1.21 ft at 1:45AM Aug 06, 2020USGS--Water Resources of the United StatesDCNG1(plotting HGIRG) Graph Created (2:33AM Aug 6, 2020)ObservedLatest observed value: 1.21 ft at 1:45 AM EDT 6-Aug-2020. 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) 20.55 ft on 03/12/1963
(2) 20.30 ft on 05/28/1973
(3) 18.83 ft on 08/23/1967
(4) 17.95 ft on 05/29/1976
(5) 16.68 ft on 01/27/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.29 ft on 02/06/2020
(2) 15.53 ft on 12/28/2018
(3) 16.68 ft on 01/27/1996
(4) 17.95 ft on 05/29/1976
(5) 20.30 ft on 05/28/1973
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
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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