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Hydrograph River at a Glance Download
Chattahoochee River near Cornelia Stage (ft)Flow (kcfs)Highest Observation: 1.84 ft at 9:15PM Apr 19, 2021Highest Observation: 1.84 ft at 9:30PM Apr 19, 2021Highest Observation: 1.84 ft at 9:45PM Apr 19, 2021Observed: 1.83 ft at 10:00PM Apr 19, 2021Observed: 1.83 ft at 10:15PM Apr 19, 2021Observed: 1.83 ft at 10:30PM Apr 19, 2021Observed: 1.83 ft at 10:45PM Apr 19, 2021Observed: 1.83 ft at 11:00PM Apr 19, 2021Observed: 1.82 ft at 11:15PM Apr 19, 2021Observed: 1.83 ft at 11:30PM Apr 19, 2021Observed: 1.82 ft at 11:45PM Apr 19, 2021Observed: 1.82 ft at 12:00AM Apr 20, 2021Observed: 1.82 ft at 12:15AM Apr 20, 2021Observed: 1.82 ft at 12:30AM Apr 20, 2021Observed: 1.82 ft at 12:45AM Apr 20, 2021Observed: 1.82 ft at 1:00AM Apr 20, 2021Observed: 1.82 ft at 1:15AM Apr 20, 2021Observed: 1.82 ft at 1:30AM Apr 20, 2021Observed: 1.82 ft at 1:45AM Apr 20, 2021Observed: 1.83 ft at 7:00AM Apr 20, 2021Observed: 1.83 ft at 7:15AM Apr 20, 2021Observed: 1.82 ft at 7:30AM Apr 20, 2021Observed: 1.82 ft at 7:45AM Apr 20, 2021Observed: 1.82 ft at 8:00AM Apr 20, 2021Observed: 1.83 ft at 8:15AM Apr 20, 2021Observed: 1.82 ft at 8:30AM Apr 20, 2021Observed: 1.82 ft at 8:45AM Apr 20, 2021Observed: 1.82 ft at 9:00AM Apr 20, 2021Observed: 1.82 ft at 9:15AM Apr 20, 2021Observed: 1.82 ft at 9:30AM Apr 20, 2021Observed: 1.82 ft at 9:45AM Apr 20, 2021Observed: 1.81 ft at 10:30AM Apr 20, 2021Observed: 1.81 ft at 10:45AM Apr 20, 2021Observed: 1.81 ft at 11:00AM Apr 20, 2021Observed: 1.81 ft at 11:15AM Apr 20, 2021Observed: 1.81 ft at 11:30AM Apr 20, 2021Observed: 1.81 ft at 11:45AM Apr 20, 2021Observed: 1.81 ft at 12:00PM Apr 20, 2021Observed: 1.81 ft at 12:15PM Apr 20, 2021Observed: 1.81 ft at 12:30PM Apr 20, 2021Observed: 1.81 ft at 12:45PM Apr 20, 2021Observed: 1.81 ft at 1:00PM Apr 20, 2021Observed: 1.81 ft at 1:15PM Apr 20, 2021Observed: 1.81 ft at 1:30PM Apr 20, 2021Observed: 1.81 ft at 1:45PM Apr 20, 2021Observed: 1.81 ft at 2:00PM Apr 20, 2021Observed: 1.82 ft at 2:15PM Apr 20, 2021Observed: 1.82 ft at 2:30PM Apr 20, 2021Observed: 1.82 ft at 2:45PM Apr 20, 2021Observed: 1.82 ft at 3:00PM Apr 20, 2021Observed: 1.82 ft at 3:15PM Apr 20, 2021Observed: 1.82 ft at 3:30PM Apr 20, 2021Observed: 1.82 ft at 3:45PM Apr 20, 2021Observed: 1.82 ft at 4:00PM Apr 20, 2021Observed: 1.82 ft at 4:15PM Apr 20, 2021Observed: 1.82 ft at 4:30PM Apr 20, 2021Observed: 1.82 ft at 4:45PM Apr 20, 2021Observed: 1.82 ft at 5:00PM Apr 20, 2021Observed: 1.82 ft at 5:15PM Apr 20, 2021Observed: 1.81 ft at 5:30PM Apr 20, 2021Observed: 1.81 ft at 5:45PM Apr 20, 2021Observed: 1.82 ft at 6:00PM Apr 20, 2021Observed: 1.82 ft at 6:15PM Apr 20, 2021Observed: 1.82 ft at 6:30PM Apr 20, 2021Observed: 1.81 ft at 6:45PM Apr 20, 2021Observed: 1.81 ft at 7:00PM Apr 20, 2021Observed: 1.81 ft at 7:15PM Apr 20, 2021Observed: 1.8 ft at 7:30PM Apr 20, 2021Observed: 1.8 ft at 7:45PM Apr 20, 2021Observed: 1.8 ft at 8:00PM Apr 20, 2021Observed: 1.8 ft at 8:15PM Apr 20, 2021Observed: 1.8 ft at 8:30PM Apr 20, 2021Observed: 1.8 ft at 8:45PM Apr 20, 2021Observed: 1.8 ft at 9:00PM Apr 20, 2021Observed: 1.8 ft at 9:15PM Apr 20, 2021Observed: 1.8 ft at 9:30PM Apr 20, 2021Observed: 1.8 ft at 9:45PM Apr 20, 2021Observed: 1.8 ft at 10:00PM Apr 20, 2021Observed: 1.8 ft at 10:15PM Apr 20, 2021Observed: 1.79 ft at 10:30PM Apr 20, 2021Observed: 1.79 ft at 10:45PM Apr 20, 2021Observed: 1.8 ft at 11:00PM Apr 20, 2021Observed: 1.8 ft at 11:15PM Apr 20, 2021Observed: 1.8 ft at 11:30PM Apr 20, 2021Observed: 1.8 ft at 11:45PM Apr 20, 2021Observed: 1.8 ft at 12:00AM Apr 21, 2021Observed: 1.8 ft at 12:15AM Apr 21, 2021Observed: 1.8 ft at 12:30AM Apr 21, 2021Observed: 1.8 ft at 12:45AM Apr 21, 2021Observed: 1.8 ft at 1:00AM Apr 21, 2021Observed: 1.8 ft at 1:15AM Apr 21, 2021Observed: 1.8 ft at 1:30AM Apr 21, 2021Observed: 1.8 ft at 1:45AM Apr 21, 2021Observed: 1.8 ft at 2:00AM Apr 21, 2021Observed: 1.8 ft at 2:15AM Apr 21, 2021Observed: 1.8 ft at 2:30AM Apr 21, 2021Observed: 1.8 ft at 2:45AM Apr 21, 2021Observed: 1.8 ft at 3:00AM Apr 21, 2021Observed: 1.8 ft at 3:15AM Apr 21, 2021Observed: 1.8 ft at 3:30AM Apr 21, 2021Observed: 1.8 ft at 3:45AM Apr 21, 2021Observed: 1.8 ft at 4:00AM Apr 21, 2021Observed: 1.8 ft at 4:15AM Apr 21, 2021Observed: 1.8 ft at 4:30AM Apr 21, 2021Observed: 1.8 ft at 4:45AM Apr 21, 2021Observed: 1.8 ft at 5:00AM Apr 21, 2021Observed: 1.8 ft at 5:15AM Apr 21, 2021Observed: 1.8 ft at 5:30AM Apr 21, 2021Observed: 1.8 ft at 5:45AM Apr 21, 2021Observed: 1.8 ft at 6:00AM Apr 21, 2021Observed: 1.8 ft at 6:15AM Apr 21, 2021Observed: 1.8 ft at 6:30AM Apr 21, 2021Observed: 1.8 ft at 6:45AM Apr 21, 2021Observed: 1.8 ft at 7:00AM Apr 21, 2021Observed: 1.79 ft at 7:15AM Apr 21, 2021Observed: 1.8 ft at 7:30AM Apr 21, 2021Observed: 1.79 ft at 7:45AM Apr 21, 2021Observed: 1.79 ft at 8:00AM Apr 21, 2021Observed: 1.79 ft at 8:15AM Apr 21, 2021Observed: 1.79 ft at 8:30AM Apr 21, 2021Observed: 1.8 ft at 8:45AM Apr 21, 2021Observed: 1.8 ft at 9:00AM Apr 21, 2021Observed: 1.8 ft at 9:15AM Apr 21, 2021Observed: 1.8 ft at 9:30AM Apr 21, 2021Observed: 1.8 ft at 9:45AM Apr 21, 2021Observed: 1.8 ft at 10:00AM Apr 21, 2021Observed: 1.8 ft at 10:15AM Apr 21, 2021Observed: 1.8 ft at 10:30AM Apr 21, 2021Observed: 1.8 ft at 10:45AM Apr 21, 2021Observed: 1.8 ft at 11:00AM Apr 21, 2021Observed: 1.79 ft at 11:15AM Apr 21, 2021Observed: 1.8 ft at 11:30AM Apr 21, 2021Observed: 1.79 ft at 11:45AM Apr 21, 2021Observed: 1.8 ft at 12:00PM Apr 21, 2021Observed: 1.8 ft at 12:15PM Apr 21, 2021Observed: 1.8 ft at 12:30PM Apr 21, 2021Observed: 1.8 ft at 12:45PM Apr 21, 2021Observed: 1.8 ft at 1:00PM Apr 21, 2021Observed: 1.8 ft at 1:15PM Apr 21, 2021Observed: 1.8 ft at 1:30PM Apr 21, 2021Observed: 1.8 ft at 1:45PM Apr 21, 2021Observed: 1.8 ft at 2:00PM Apr 21, 2021Observed: 1.8 ft at 2:15PM Apr 21, 2021Observed: 1.8 ft at 2:30PM Apr 21, 2021Observed: 1.8 ft at 2:45PM Apr 21, 2021Observed: 1.8 ft at 3:00PM Apr 21, 2021Observed: 1.8 ft at 3:15PM Apr 21, 2021Observed: 1.8 ft at 3:30PM Apr 21, 2021Observed: 1.8 ft at 3:45PM Apr 21, 2021Observed: 1.8 ft at 4:00PM Apr 21, 2021Observed: 1.8 ft at 4:15PM Apr 21, 2021Observed: 1.81 ft at 4:30PM Apr 21, 2021Observed: 1.8 ft at 4:45PM Apr 21, 2021Observed: 1.79 ft at 5:00PM Apr 21, 2021Observed: 1.8 ft at 5:15PM Apr 21, 2021Observed: 1.8 ft at 5:30PM Apr 21, 2021Observed: 1.79 ft at 5:45PM Apr 21, 2021Observed: 1.8 ft at 6:00PM Apr 21, 2021Observed: 1.8 ft at 6:15PM Apr 21, 2021Observed: 1.79 ft at 6:30PM Apr 21, 2021Observed: 1.79 ft at 6:45PM Apr 21, 2021Observed: 1.78 ft at 7:00PM Apr 21, 2021Observed: 1.78 ft at 7:15PM Apr 21, 2021Observed: 1.78 ft at 7:30PM Apr 21, 2021Observed: 1.78 ft at 7:45PM Apr 21, 2021Observed: 1.78 ft at 8:00PM Apr 21, 2021Observed: 1.78 ft at 8:15PM Apr 21, 2021Observed: 1.77 ft at 8:30PM Apr 21, 2021Observed: 1.76 ft at 8:45PM Apr 21, 2021Observed: 1.76 ft at 9:00PM Apr 21, 2021Observed: 1.76 ft at 9:15PM Apr 21, 2021Observed: 1.76 ft at 9:30PM Apr 21, 2021Observed: 1.77 ft at 9:45PM Apr 21, 2021Observed: 1.76 ft at 10:00PM Apr 21, 2021Observed: 1.76 ft at 10:15PM Apr 21, 2021Observed: 1.76 ft at 10:30PM Apr 21, 2021Observed: 1.76 ft at 10:45PM Apr 21, 2021Observed: 1.76 ft at 11:00PM Apr 21, 2021Observed: 1.76 ft at 11:15PM Apr 21, 2021Observed: 1.76 ft at 11:30PM Apr 21, 2021Observed: 1.76 ft at 11:45PM Apr 21, 2021Observed: 1.75 ft at 12:00AM Apr 22, 2021Observed: 1.76 ft at 12:15AM Apr 22, 2021Observed: 1.76 ft at 12:30AM Apr 22, 2021Observed: 1.76 ft at 12:45AM Apr 22, 2021Observed: 1.75 ft at 1:00AM Apr 22, 2021Observed: 1.76 ft at 1:15AM Apr 22, 2021Observed: 1.76 ft at 1:30AM Apr 22, 2021Observed: 1.76 ft at 1:45AM Apr 22, 2021Observed: 1.76 ft at 2:00AM Apr 22, 2021Observed: 1.76 ft at 2:15AM Apr 22, 2021Observed: 1.76 ft at 2:30AM Apr 22, 2021Observed: 1.76 ft at 2:45AM Apr 22, 2021Observed: 1.76 ft at 3:00AM Apr 22, 2021Observed: 1.76 ft at 3:15AM Apr 22, 2021Observed: 1.76 ft at 3:30AM Apr 22, 2021Observed: 1.76 ft at 3:45AM Apr 22, 2021Observed: 1.76 ft at 4:00AM Apr 22, 2021Observed: 1.76 ft at 4:15AM Apr 22, 2021Observed: 1.76 ft at 4:30AM Apr 22, 2021Observed: 1.76 ft at 4:45AM Apr 22, 2021Observed: 1.76 ft at 5:00AM Apr 22, 2021Observed: 1.76 ft at 5:15AM Apr 22, 2021Observed: 1.76 ft at 5:30AM Apr 22, 2021Observed: 1.76 ft at 5:45AM Apr 22, 2021Observed: 1.76 ft at 6:00AM Apr 22, 2021Observed: 1.76 ft at 6:15AM Apr 22, 2021Observed: 1.76 ft at 6:30AM Apr 22, 2021Observed: 1.76 ft at 6:45AM Apr 22, 2021Observed: 1.76 ft at 7:00AM Apr 22, 2021Observed: 1.75 ft at 7:15AM Apr 22, 2021Observed: 1.76 ft at 7:30AM Apr 22, 2021Observed: 1.76 ft at 7:45AM Apr 22, 2021Observed: 1.76 ft at 8:00AM Apr 22, 2021Observed: 1.76 ft at 8:15AM Apr 22, 2021Observed: 1.75 ft at 8:30AM Apr 22, 2021Observed: 1.75 ft at 8:45AM Apr 22, 2021Observed: 1.75 ft at 9:00AM Apr 22, 2021Observed: 1.75 ft at 9:15AM Apr 22, 2021Observed: 1.75 ft at 9:30AM Apr 22, 2021Observed: 1.76 ft at 9:45AM Apr 22, 2021Observed: 1.75 ft at 10:00AM Apr 22, 2021Observed: 1.76 ft at 10:15AM Apr 22, 2021Observed: 1.76 ft at 10:30AM Apr 22, 2021Observed: 1.76 ft at 10:45AM Apr 22, 2021Observed: 1.76 ft at 11:00AM Apr 22, 2021Observed: 1.75 ft at 11:15AM Apr 22, 2021Observed: 1.76 ft at 11:30AM Apr 22, 2021Observed: 1.76 ft at 11:45AM Apr 22, 2021Observed: 1.75 ft at 12:00PM Apr 22, 2021Observed: 1.76 ft at 12:15PM Apr 22, 2021Observed: 1.76 ft at 12:30PM Apr 22, 2021Observed: 1.76 ft at 12:45PM Apr 22, 2021Observed: 1.76 ft at 1:00PM Apr 22, 2021Observed: 1.76 ft at 1:15PM Apr 22, 2021Observed: 1.76 ft at 1:30PM Apr 22, 2021Observed: 1.76 ft at 1:45PM Apr 22, 2021Observed: 1.76 ft at 2:00PM Apr 22, 2021Observed: 1.76 ft at 2:15PM Apr 22, 2021Observed: 1.76 ft at 2:30PM Apr 22, 2021Observed: 1.76 ft at 2:45PM Apr 22, 2021Observed: 1.76 ft at 3:00PM Apr 22, 2021Observed: 1.76 ft at 3:15PM Apr 22, 2021Observed: 1.76 ft at 3:30PM Apr 22, 2021Observed: 1.76 ft at 3:45PM Apr 22, 2021Observed: 1.76 ft at 4:00PM Apr 22, 2021Observed: 1.76 ft at 4:15PM Apr 22, 2021Observed: 1.76 ft at 4:30PM Apr 22, 2021Observed: 1.76 ft at 4:45PM Apr 22, 2021Observed: 1.77 ft at 5:00PM Apr 22, 2021Observed: 1.77 ft at 5:15PM Apr 22, 2021Observed: 1.76 ft at 5:30PM Apr 22, 2021Observed: 1.77 ft at 5:45PM Apr 22, 2021Observed: 1.77 ft at 6:00PM Apr 22, 2021Observed: 1.76 ft at 6:15PM Apr 22, 2021Observed: 1.77 ft at 6:30PM Apr 22, 2021Observed: 1.77 ft at 6:45PM Apr 22, 2021Observed: 1.76 ft at 7:00PM Apr 22, 2021Observed: 1.76 ft at 7:15PM Apr 22, 2021Observed: 1.76 ft at 7:30PM Apr 22, 2021Observed: 1.76 ft at 7:45PM Apr 22, 2021Observed: 1.76 ft at 8:00PM Apr 22, 2021Observed: 1.76 ft at 8:15PM Apr 22, 2021Observed: 1.76 ft at 8:30PM Apr 22, 2021Observed: 1.76 ft at 8:45PM Apr 22, 2021USGS--Water Resources of the United StatesDCNG1(plotting HGIRG) Graph Created (9:04PM Apr 22, 2021)ObservedLatest observed value: 1.76 ft at 8:45 PM EDT 22-Apr-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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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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