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Visit for access to new EXPERIMENTAL products and services from the National Water Center: National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook and the National Water Center Visualization Services, a suite of geospatial services depicting River Forecast Center and National Water Model information.

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Hydrograph River at a Glance Download
Ocmulgee River at Jackson Lake Pool (ft)Observed: 528.61 ft at 7:00AM Nov 26, 2022Highest Observation: 528.84 ft at 7:00AM Nov 27, 2022Observed: 528.76 ft at 7:00AM Nov 28, 2022Observed: 528.62 ft at 7:00AM Nov 29, 2022Observed: 528.25 ft at 7:00AM Nov 30, 2022JKNG1(plotting HPIRZ) Graph Created (5:49PM Nov 30, 2022)ObservedLatest observed value: 528.25 ft at 7:00 AM EST 30-Nov-2022. Flood Stage is 530.5 ft
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Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
NOTE: Stage measured manually and reported by river observer. No automated gauge on-site.

NOTE: Forecasts are not available for the Ocmulgee River at Jackson Lake. Only observed stages are available for this point.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Jackson
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 530.5
Action Stage: 530
Low Stage (in feet): 0

Historic Crests
(1) 534.40 ft on 07/06/1994
(2) 531.94 ft on 12/26/2015
(3) 531.21 ft on 12/31/2015
(4) 530.65 ft on 11/12/2009
(5) 530.53 ft on 02/06/2010
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(P): Preliminary values subject to further review.

Recent Crests
(1) 531.21 ft on 12/31/2015
(2) 531.94 ft on 12/26/2015
(3) 530.53 ft on 02/06/2010
(4) 530.51 ft on 12/26/2009
(5) 530.65 ft on 11/12/2009
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:16
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Gauge LocationGauge Map Marker
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: 33.320000° N, Longitude: 83.842500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 530.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 0 ft 530.5 ft  
Additional Information Collapse
Georgia Power trys to maintain a full pool level of 530.0 feet. Any reading higher than that normally causes some kind of action such as 2 or 5 foot boards pushing over to release lake water over the dam.
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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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Page last modified: 2-Nov-2020 7:30 PM
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