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Weather Forecast Office Peachtree City/Atlanta, GA Southeast River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Chattahoochee River at Lake Lanier Pool (ft)Observed: 1072.66 ft at 11:30AM May 15, 2013Highest Observation: 1072.67 ft at 11:45AM May 15, 2013Highest Observation: 1072.67 ft at 12:00PM May 15, 2013Observed: 1072.66 ft at 12:15PM May 15, 2013Highest Observation: 1072.67 ft at 12:30PM May 15, 2013Observed: 1072.66 ft at 12:45PM May 15, 2013Observed: 1072.66 ft at 1:00PM May 15, 2013Observed: 1072.66 ft at 1:15PM May 15, 2013Observed: 1072.66 ft at 1:30PM May 15, 2013Observed: 1072.66 ft at 1:45PM May 15, 2013Observed: 1072.66 ft at 2:00PM May 15, 2013Observed: 1072.66 ft at 2:15PM May 15, 2013Observed: 1072.66 ft at 2:30PM May 15, 2013Observed: 1072.66 ft at 2:45PM May 15, 2013Observed: 1072.66 ft at 3:00PM May 15, 2013Observed: 1072.63 ft at 3:15PM May 15, 2013Observed: 1072.62 ft at 3:30PM May 15, 2013Observed: 1072.62 ft at 3:45PM May 15, 2013Observed: 1072.61 ft at 4:00PM May 15, 2013Observed: 1072.6 ft at 4:15PM May 15, 2013Observed: 1072.6 ft at 4:30PM May 15, 2013Observed: 1072.61 ft at 4:45PM May 15, 2013Observed: 1072.6 ft at 5:00PM May 15, 2013Observed: 1072.62 ft at 5:15PM May 15, 2013Observed: 1072.61 ft at 5:30PM May 15, 2013Observed: 1072.61 ft at 5:45PM May 15, 2013Observed: 1072.6 ft at 6:00PM May 15, 2013Observed: 1072.6 ft at 6:15PM May 15, 2013Observed: 1072.6 ft at 6:30PM May 15, 2013Observed: 1072.59 ft at 6:45PM May 15, 2013Observed: 1072.59 ft at 7:00PM May 15, 2013Observed: 1072.61 ft at 7:15PM May 15, 2013Observed: 1072.6 ft at 7:30PM May 15, 2013Observed: 1072.59 ft at 7:45PM May 15, 2013Observed: 1072.59 ft at 8:00PM May 15, 2013Observed: 1072.58 ft at 8:15PM May 15, 2013Observed: 1072.57 ft at 8:30PM May 15, 2013Observed: 1072.57 ft at 8:45PM May 15, 2013Observed: 1072.57 ft at 9:00PM May 15, 2013Observed: 1072.57 ft at 9:15PM May 15, 2013Observed: 1072.56 ft at 9:30PM May 15, 2013Observed: 1072.57 ft at 9:45PM May 15, 2013Observed: 1072.55 ft at 10:00PM May 15, 2013Observed: 1072.56 ft at 10:15PM May 15, 2013Observed: 1072.57 ft at 10:30PM May 15, 2013Observed: 1072.56 ft at 10:45PM May 15, 2013Observed: 1072.55 ft at 11:00PM May 15, 2013Observed: 1072.56 ft at 11:15PM May 15, 2013Observed: 1072.55 ft at 11:30PM May 15, 2013Observed: 1072.55 ft at 11:45PM May 15, 2013Observed: 1072.56 ft at 12:00AM May 16, 2013Observed: 1072.56 ft at 12:15AM May 16, 2013Observed: 1072.56 ft at 12:30AM May 16, 2013Observed: 1072.55 ft at 12:45AM May 16, 2013Observed: 1072.55 ft at 1:00AM May 16, 2013Observed: 1072.56 ft at 1:15AM May 16, 2013Observed: 1072.54 ft at 1:30AM May 16, 2013Observed: 1072.54 ft at 1:45AM May 16, 2013Observed: 1072.54 ft at 2:00AM May 16, 2013Observed: 1072.53 ft at 2:15AM May 16, 2013Observed: 1072.53 ft at 2:30AM May 16, 2013Observed: 1072.53 ft at 2:45AM May 16, 2013Observed: 1072.52 ft at 3:00AM May 16, 2013Observed: 1072.52 ft at 3:15AM May 16, 2013Observed: 1072.53 ft at 3:30AM May 16, 2013Observed: 1072.52 ft at 3:45AM May 16, 2013Observed: 1072.52 ft at 4:00AM May 16, 2013Observed: 1072.52 ft at 4:15AM May 16, 2013Observed: 1072.52 ft at 4:30AM May 16, 2013Observed: 1072.52 ft at 4:45AM May 16, 2013Observed: 1072.51 ft at 5:00AM May 16, 2013Observed: 1072.52 ft at 5:15AM May 16, 2013Observed: 1072.52 ft at 5:30AM May 16, 2013Observed: 1072.51 ft at 5:45AM May 16, 2013Observed: 1072.51 ft at 6:00AM May 16, 2013Observed: 1072.51 ft at 6:15AM May 16, 2013Observed: 1072.5 ft at 6:30AM May 16, 2013Observed: 1072.5 ft at 6:45AM May 16, 2013Observed: 1072.5 ft at 7:00AM May 16, 2013Observed: 1072.5 ft at 7:15AM May 16, 2013Observed: 1072.5 ft at 7:30AM May 16, 2013Observed: 1072.5 ft at 7:45AM May 16, 2013Observed: 1072.5 ft at 8:00AM May 16, 2013Observed: 1072.47 ft at 8:15AM May 16, 2013Observed: 1072.47 ft at 8:30AM May 16, 2013Observed: 1072.47 ft at 8:45AM May 16, 2013Observed: 1072.47 ft at 9:00AM May 16, 2013Observed: 1072.49 ft at 9:15AM May 16, 2013Observed: 1072.49 ft at 9:30AM May 16, 2013Observed: 1072.49 ft at 9:45AM May 16, 2013Observed: 1072.49 ft at 10:00AM May 16, 2013Observed: 1072.48 ft at 10:15AM May 16, 2013Observed: 1072.48 ft at 10:30AM May 16, 2013Observed: 1072.48 ft at 10:45AM May 16, 2013Observed: 1072.47 ft at 11:00AM May 16, 2013Observed: 1072.44 ft at 11:15AM May 16, 2013Observed: 1072.46 ft at 11:30AM May 16, 2013Observed: 1072.44 ft at 11:45AM May 16, 2013Observed: 1072.46 ft at 12:00PM May 16, 2013Observed: 1072.46 ft at 12:15PM May 16, 2013Observed: 1072.47 ft at 12:30PM May 16, 2013Observed: 1072.46 ft at 12:45PM May 16, 2013Observed: 1072.45 ft at 1:00PM May 16, 2013Observed: 1072.46 ft at 1:15PM May 16, 2013Observed: 1072.45 ft at 1:30PM May 16, 2013Observed: 1072.47 ft at 1:45PM May 16, 2013Observed: 1072.46 ft at 2:00PM May 16, 2013Observed: 1072.45 ft at 2:15PM May 16, 2013Observed: 1072.45 ft at 2:30PM May 16, 2013Observed: 1072.44 ft at 2:45PM May 16, 2013Observed: 1072.45 ft at 3:00PM May 16, 2013Observed: 1072.44 ft at 3:15PM May 16, 2013Observed: 1072.45 ft at 3:30PM May 16, 2013Observed: 1072.45 ft at 3:45PM May 16, 2013Observed: 1072.44 ft at 4:00PM May 16, 2013Observed: 1072.44 ft at 4:15PM May 16, 2013Observed: 1072.43 ft at 4:30PM May 16, 2013Observed: 1072.44 ft at 4:45PM May 16, 2013Observed: 1072.41 ft at 5:00PM May 16, 2013Observed: 1072.4 ft at 5:15PM May 16, 2013Observed: 1072.41 ft at 5:30PM May 16, 2013Observed: 1072.42 ft at 5:45PM May 16, 2013Observed: 1072.42 ft at 6:00PM May 16, 2013Observed: 1072.41 ft at 6:15PM May 16, 2013Observed: 1072.42 ft at 6:30PM May 16, 2013Observed: 1072.41 ft at 6:45PM May 16, 2013Observed: 1072.41 ft at 7:00PM May 16, 2013Observed: 1072.38 ft at 7:15PM May 16, 2013Observed: 1072.38 ft at 7:30PM May 16, 2013Observed: 1072.38 ft at 7:45PM May 16, 2013Observed: 1072.38 ft at 8:00PM May 16, 2013Observed: 1072.38 ft at 8:15PM May 16, 2013Observed: 1072.38 ft at 8:30PM May 16, 2013Observed: 1072.38 ft at 8:45PM May 16, 2013Observed: 1072.37 ft at 9:00PM May 16, 2013Observed: 1072.36 ft at 9:15PM May 16, 2013Observed: 1072.35 ft at 9:30PM May 16, 2013Observed: 1072.35 ft at 9:45PM May 16, 2013Observed: 1072.34 ft at 10:00PM May 16, 2013Observed: 1072.34 ft at 10:15PM May 16, 2013Observed: 1072.34 ft at 10:30PM May 16, 2013Observed: 1072.33 ft at 10:45PM May 16, 2013Observed: 1072.33 ft at 11:00PM May 16, 2013Observed: 1072.36 ft at 11:15PM May 16, 2013Observed: 1072.36 ft at 11:30PM May 16, 2013Observed: 1072.36 ft at 11:45PM May 16, 2013Observed: 1072.34 ft at 12:00AM May 17, 2013Observed: 1072.34 ft at 12:15AM May 17, 2013Observed: 1072.31 ft at 12:30AM May 17, 2013Observed: 1072.31 ft at 12:45AM May 17, 2013Observed: 1072.3 ft at 1:00AM May 17, 2013Observed: 1072.33 ft at 1:15AM May 17, 2013Observed: 1072.33 ft at 1:30AM May 17, 2013Observed: 1072.32 ft at 1:45AM May 17, 2013Observed: 1072.32 ft at 2:00AM May 17, 2013Observed: 1072.32 ft at 2:15AM May 17, 2013Observed: 1072.33 ft at 2:30AM May 17, 2013Observed: 1072.33 ft at 2:45AM May 17, 2013Observed: 1072.33 ft at 3:00AM May 17, 2013Observed: 1072.33 ft at 3:15AM May 17, 2013Observed: 1072.32 ft at 3:30AM May 17, 2013Observed: 1072.33 ft at 3:45AM May 17, 2013Observed: 1072.33 ft at 4:00AM May 17, 2013Observed: 1072.33 ft at 4:15AM May 17, 2013Observed: 1072.34 ft at 4:30AM May 17, 2013Observed: 1072.33 ft at 4:45AM May 17, 2013Observed: 1072.34 ft at 5:00AM May 17, 2013Observed: 1072.34 ft at 5:15AM May 17, 2013Observed: 1072.35 ft at 5:30AM May 17, 2013Observed: 1072.33 ft at 5:45AM May 17, 2013Observed: 1072.31 ft at 6:00AM May 17, 2013Observed: 1072.3 ft at 6:15AM May 17, 2013Observed: 1072.29 ft at 6:30AM May 17, 2013Observed: 1072.3 ft at 6:45AM May 17, 2013Observed: 1072.3 ft at 7:00AM May 17, 2013Observed: 1072.32 ft at 7:15AM May 17, 2013Observed: 1072.33 ft at 7:30AM May 17, 2013Observed: 1072.33 ft at 7:45AM May 17, 2013Observed: 1072.32 ft at 8:00AM May 17, 2013Observed: 1072.32 ft at 8:15AM May 17, 2013Observed: 1072.31 ft at 8:30AM May 17, 2013Observed: 1072.3 ft at 8:45AM May 17, 2013Observed: 1072.3 ft at 9:00AM May 17, 2013Observed: 1072.29 ft at 9:15AM May 17, 2013Observed: 1072.29 ft at 9:30AM May 17, 2013Observed: 1072.3 ft at 9:45AM May 17, 2013Observed: 1072.3 ft at 10:00AM May 17, 2013Observed: 1072.3 ft at 10:15AM May 17, 2013Observed: 1072.3 ft at 10:30AM May 17, 2013Observed: 1072.3 ft at 10:45AM May 17, 2013Observed: 1072.29 ft at 11:00AM May 17, 2013Observed: 1072.29 ft at 11:15AM May 17, 2013Observed: 1072.28 ft at 11:30AM May 17, 2013Observed: 1072.28 ft at 11:45AM May 17, 2013Observed: 1072.28 ft at 12:00PM May 17, 2013Observed: 1072.27 ft at 12:15PM May 17, 2013Observed: 1072.27 ft at 12:30PM May 17, 2013Observed: 1072.27 ft at 12:45PM May 17, 2013Observed: 1072.26 ft at 1:00PM May 17, 2013Observed: 1072.27 ft at 1:15PM May 17, 2013Observed: 1072.26 ft at 1:30PM May 17, 2013Observed: 1072.26 ft at 1:45PM May 17, 2013Observed: 1072.26 ft at 2:00PM May 17, 2013Observed: 1072.26 ft at 2:15PM May 17, 2013Observed: 1072.25 ft at 2:30PM May 17, 2013Observed: 1072.25 ft at 2:45PM May 17, 2013Observed: 1072.25 ft at 3:00PM May 17, 2013Observed: 1072.25 ft at 3:15PM May 17, 2013Observed: 1072.25 ft at 3:30PM May 17, 2013Observed: 1072.25 ft at 3:45PM May 17, 2013Observed: 1072.23 ft at 4:00PM May 17, 2013Observed: 1072.24 ft at 4:15PM May 17, 2013Observed: 1072.25 ft at 4:30PM May 17, 2013Observed: 1072.24 ft at 4:45PM May 17, 2013Observed: 1072.23 ft at 5:00PM May 17, 2013Observed: 1072.21 ft at 5:15PM May 17, 2013Observed: 1072.2 ft at 5:30PM May 17, 2013Observed: 1072.19 ft at 5:45PM May 17, 2013Observed: 1072.19 ft at 6:00PM May 17, 2013Observed: 1072.19 ft at 6:15PM May 17, 2013Observed: 1072.2 ft at 6:30PM May 17, 2013Observed: 1072.19 ft at 6:45PM May 17, 2013Observed: 1072.19 ft at 7:00PM May 17, 2013Observed: 1072.18 ft at 7:15PM May 17, 2013Observed: 1072.17 ft at 7:30PM May 17, 2013Observed: 1072.16 ft at 7:45PM May 17, 2013Observed: 1072.16 ft at 8:00PM May 17, 2013Observed: 1072.19 ft at 8:15PM May 17, 2013Observed: 1072.17 ft at 8:30PM May 17, 2013Observed: 1072.17 ft at 8:45PM May 17, 2013Observed: 1072.16 ft at 9:00PM May 17, 2013Observed: 1072.16 ft at 9:15PM May 17, 2013Observed: 1072.16 ft at 9:30PM May 17, 2013Observed: 1072.16 ft at 9:45PM May 17, 2013Observed: 1072.16 ft at 10:00PM May 17, 2013Observed: 1072.16 ft at 10:15PM May 17, 2013Observed: 1072.15 ft at 10:30PM May 17, 2013Observed: 1072.15 ft at 10:45PM May 17, 2013Observed: 1072.14 ft at 11:00PM May 17, 2013Observed: 1072.13 ft at 11:15PM May 17, 2013Observed: 1072.13 ft at 11:30PM May 17, 2013Observed: 1072.13 ft at 11:45PM May 17, 2013Observed: 1072.14 ft at 12:00AM May 18, 2013Observed: 1072.17 ft at 12:15AM May 18, 2013Observed: 1072.16 ft at 12:30AM May 18, 2013Observed: 1072.16 ft at 12:45AM May 18, 2013Observed: 1072.15 ft at 1:00AM May 18, 2013Observed: 1072.15 ft at 1:15AM May 18, 2013Observed: 1072.15 ft at 1:30AM May 18, 2013Observed: 1072.16 ft at 1:45AM May 18, 2013Observed: 1072.17 ft at 2:00AM May 18, 2013Observed: 1072.18 ft at 2:15AM May 18, 2013Observed: 1072.19 ft at 2:30AM May 18, 2013Observed: 1072.18 ft at 2:45AM May 18, 2013Observed: 1072.18 ft at 3:00AM May 18, 2013Observed: 1072.17 ft at 3:15AM May 18, 2013Observed: 1072.17 ft at 3:30AM May 18, 2013Observed: 1072.16 ft at 3:45AM May 18, 2013Observed: 1072.17 ft at 4:00AM May 18, 2013Observed: 1072.17 ft at 4:15AM May 18, 2013Observed: 1072.17 ft at 4:30AM May 18, 2013Observed: 1072.18 ft at 4:45AM May 18, 2013Observed: 1072.18 ft at 5:00AM May 18, 2013Observed: 1072.18 ft at 5:15AM May 18, 2013Observed: 1072.18 ft at 5:30AM May 18, 2013Observed: 1072.17 ft at 5:45AM May 18, 2013Observed: 1072.18 ft at 6:00AM May 18, 2013Observed: 1072.18 ft at 6:15AM May 18, 2013Observed: 1072.18 ft at 6:30AM May 18, 2013Observed: 1072.19 ft at 6:45AM May 18, 2013Observed: 1072.19 ft at 7:00AM May 18, 2013Observed: 1072.19 ft at 7:15AM May 18, 2013Observed: 1072.19 ft at 7:30AM May 18, 2013Observed: 1072.19 ft at 7:45AM May 18, 2013Observed: 1072.19 ft at 8:00AM May 18, 2013Observed: 1072.19 ft at 8:15AM May 18, 2013Observed: 1072.19 ft at 8:30AM May 18, 2013Observed: 1072.19 ft at 8:45AM May 18, 2013Observed: 1072.2 ft at 9:00AM May 18, 2013Observed: 1072.21 ft at 9:15AM May 18, 2013Observed: 1072.2 ft at 9:30AM May 18, 2013Observed: 1072.21 ft at 9:45AM May 18, 2013Observed: 1072.21 ft at 10:00AM May 18, 2013Observed: 1072.21 ft at 10:15AM May 18, 2013CMMG1(plotting HPIRG) Graph Created (11:22AM May 18, 2013)ObservedLatest observed value: 1072.21 ft at 10:15 AM EDT 18-May-2013. Flood Stage is 1085 ft
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Tabular Data
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Chattahoochee River at Lake Lanier. Only observed stages are available for this point.
Return to Area Map
Upstream Gauge - near Cornelia Upstream Gauge Downstream Gauge Downstream Gauge - near Buford
Flood Categories (in feet)
Major Flood Stage:0
Moderate Flood Stage:0
Flood Stage:1085
Action Stage:1071

Historical Crests
(1) 1,077.15 ft on 04/14/1964
(2) 1,076.20 ft on 04/05/1977
(3) 1,075.99 ft on 04/15/1979
(4) 1,075.75 ft on 04/01/1976
(5) 1,075.19 ft on 03/19/1990
Show More Historical Crests

Low Water Records
(1) 1,050.75 ft on 12/28/2007
(2) 1,052.66 ft on 12/23/1981
(3) 1,054.85 ft on 10/08/1986
Show More Low Water Records
Legend
Gauge Location
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.
Low Water Impacts Collapse
1000-1500 cfs Advantageous for recreational opportunities and resources supported by the river as it flows through the Chattahoochee River National Recreational Area (from Buford Dam to Peachtree Creek).
1500-2000 cfs Habitat values for trout peak at river flows less than 2,000 cfs.
2000-12000 Habitat values for trout decline at river flow increases from 2,000 cfs to 12,000 cfs.
3800 cfs Normal, 1 large unit operating-outflow 3,800cfs
450-500 cfs Flow level of 450 cfs required from Buford Dam plus additional flows from tributaries between Buford Dam and Peachtree Creek should achieve the required flow of 750 cfs on the Chattahoochee River near the merger of Peachtree Creek.
500-538 cfs The stretch of the river from Buford Dam to Georgia Highway 20 is barely runnable.
538-650 cfs Buford Trout Hatchery water intake still operable when instantaneous flow is in this range.
650-750 cfs Temporary reduction in minimum flow requirement. Permitted from Nov 14, 2008 through April 30, 2009. Flow reduction can occur during the cooler time of the year without adversely affecting water quality.
750-850 cfs Standard minimum flow requirement for operations at Buford Dam.
8000 cfs Normal, 2 large units operating-outflow 8,000cfs.
8200 cfs Normal, 3 units operating-outflow 8,200cfs.
850-1000 cfs Minimum flow to paddle the 56.2 miles from Buford Dam to Sweetwater Creek (Metro Hooch). Class I to II.
About This Location Collapse

Latitude: 34.158333° N, Longitude: 84.072222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 1085 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 Not Available Not Available  

Other Data Sources:
Additional Information Collapse
The summer pool level of 1071 feet MSL will be considered the action stage or bankfull on the hydrograph.
Resources Collapse
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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Page last modified: 13-Mar-2013 6:28 PM 		Disclaimer
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