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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.



Hydrograph River at a Glance Download
Chattahoochee River at US 41 at Atlanta Stage (ft)Observed: 4.33 ft at 9:15AM Sep 30, 2023Observed: 4.33 ft at 9:30AM Sep 30, 2023Observed: 4.33 ft at 9:45AM Sep 30, 2023Observed: 4.33 ft at 10:00AM Sep 30, 2023Observed: 4.33 ft at 10:15AM Sep 30, 2023Observed: 4.33 ft at 10:30AM Sep 30, 2023Observed: 4.33 ft at 10:45AM Sep 30, 2023Observed: 4.32 ft at 11:00AM Sep 30, 2023Observed: 4.33 ft at 11:15AM Sep 30, 2023Observed: 4.32 ft at 11:30AM Sep 30, 2023Observed: 4.32 ft at 11:45AM Sep 30, 2023Observed: 4.33 ft at 12:00PM Sep 30, 2023Observed: 4.33 ft at 12:15PM Sep 30, 2023Observed: 4.33 ft at 12:30PM Sep 30, 2023Observed: 4.33 ft at 12:45PM Sep 30, 2023Observed: 4.33 ft at 2:00PM Sep 30, 2023Observed: 4.33 ft at 2:15PM Sep 30, 2023Observed: 4.33 ft at 2:30PM Sep 30, 2023Observed: 4.33 ft at 2:45PM Sep 30, 2023Observed: 4.33 ft at 3:00PM Sep 30, 2023Observed: 4.34 ft at 3:15PM Sep 30, 2023Observed: 4.34 ft at 3:30PM Sep 30, 2023Observed: 4.37 ft at 3:45PM Sep 30, 2023Observed: 5.74 ft at 7:00PM Sep 30, 2023Observed: 5.76 ft at 7:15PM Sep 30, 2023Highest Observation: 5.77 ft at 7:30PM Sep 30, 2023Highest Observation: 5.77 ft at 7:45PM Sep 30, 2023Observed: 5.75 ft at 8:00PM Sep 30, 2023Observed: 5.73 ft at 8:15PM Sep 30, 2023Observed: 5.69 ft at 8:30PM Sep 30, 2023Observed: 5.64 ft at 8:45PM Sep 30, 2023Observed: 5.58 ft at 9:00PM Sep 30, 2023Observed: 5.52 ft at 9:15PM Sep 30, 2023Observed: 5.47 ft at 9:30PM Sep 30, 2023Observed: 5.42 ft at 9:45PM Sep 30, 2023Observed: 5.37 ft at 10:00PM Sep 30, 2023Observed: 5.33 ft at 10:15PM Sep 30, 2023Observed: 5.27 ft at 10:30PM Sep 30, 2023Observed: 5.26 ft at 10:45PM Sep 30, 2023Observed: 5.23 ft at 11:00PM Sep 30, 2023Observed: 5.17 ft at 11:15PM Sep 30, 2023Observed: 5.13 ft at 11:30PM Sep 30, 2023Observed: 5.12 ft at 11:45PM Sep 30, 2023Observed: 5.1 ft at 12:00AM Oct 01, 2023Observed: 5.04 ft at 12:15AM Oct 01, 2023Observed: 5 ft at 12:30AM Oct 01, 2023Observed: 4.98 ft at 12:45AM Oct 01, 2023Observed: 4.96 ft at 1:00AM Oct 01, 2023Observed: 4.98 ft at 1:15AM Oct 01, 2023Observed: 4.97 ft at 1:30AM Oct 01, 2023Observed: 4.97 ft at 1:45AM Oct 01, 2023Observed: 4.96 ft at 2:00AM Oct 01, 2023Observed: 4.94 ft at 2:15AM Oct 01, 2023Observed: 4.93 ft at 2:30AM Oct 01, 2023Observed: 4.92 ft at 2:45AM Oct 01, 2023Observed: 4.91 ft at 4:00AM Oct 01, 2023Observed: 4.89 ft at 4:15AM Oct 01, 2023Observed: 4.9 ft at 4:30AM Oct 01, 2023Observed: 4.88 ft at 4:45AM Oct 01, 2023Observed: 4.88 ft at 5:00AM Oct 01, 2023Observed: 4.88 ft at 5:15AM Oct 01, 2023Observed: 4.88 ft at 5:30AM Oct 01, 2023Observed: 4.9 ft at 5:45AM Oct 01, 2023Observed: 4.9 ft at 6:00AM Oct 01, 2023Observed: 4.9 ft at 6:15AM Oct 01, 2023Observed: 4.9 ft at 6:30AM Oct 01, 2023Observed: 4.9 ft at 6:45AM Oct 01, 2023Observed: 4.9 ft at 7:00AM Oct 01, 2023Observed: 4.9 ft at 7:15AM Oct 01, 2023Observed: 4.89 ft at 7:30AM Oct 01, 2023Observed: 4.89 ft at 7:45AM Oct 01, 2023Observed: 4.89 ft at 8:00AM Oct 01, 2023Observed: 4.83 ft at 8:15AM Oct 01, 2023Observed: 4.82 ft at 8:30AM Oct 01, 2023Observed: 4.79 ft at 8:45AM Oct 01, 2023Observed: 4.77 ft at 9:00AM Oct 01, 2023Observed: 4.74 ft at 9:15AM Oct 01, 2023Observed: 4.72 ft at 9:30AM Oct 01, 2023Observed: 4.7 ft at 9:45AM Oct 01, 2023Observed: 4.61 ft at 11:00AM Oct 01, 2023Observed: 4.6 ft at 11:15AM Oct 01, 2023Observed: 4.59 ft at 11:30AM Oct 01, 2023Observed: 4.59 ft at 11:45AM Oct 01, 2023Observed: 4.59 ft at 12:00PM Oct 01, 2023Observed: 4.58 ft at 12:15PM Oct 01, 2023Observed: 4.58 ft at 12:30PM Oct 01, 2023Observed: 4.58 ft at 12:45PM Oct 01, 2023Observed: 4.57 ft at 1:00PM Oct 01, 2023Observed: 4.57 ft at 1:15PM Oct 01, 2023Observed: 4.57 ft at 1:30PM Oct 01, 2023Observed: 4.57 ft at 1:45PM Oct 01, 2023Observed: 4.58 ft at 2:00PM Oct 01, 2023Observed: 4.58 ft at 2:15PM Oct 01, 2023Observed: 4.58 ft at 2:30PM Oct 01, 2023Observed: 4.59 ft at 2:45PM Oct 01, 2023Observed: 4.59 ft at 3:00PM Oct 01, 2023Observed: 4.59 ft at 3:15PM Oct 01, 2023Observed: 4.59 ft at 3:30PM Oct 01, 2023Observed: 4.58 ft at 3:45PM Oct 01, 2023Observed: 4.57 ft at 4:00PM Oct 01, 2023Observed: 4.56 ft at 4:15PM Oct 01, 2023Observed: 4.54 ft at 4:30PM Oct 01, 2023Observed: 4.52 ft at 4:45PM Oct 01, 2023Observed: 4.49 ft at 5:00PM Oct 01, 2023Observed: 4.46 ft at 5:15PM Oct 01, 2023Observed: 4.44 ft at 5:30PM Oct 01, 2023Observed: 4.42 ft at 5:45PM Oct 01, 2023Observed: 4.39 ft at 6:00PM Oct 01, 2023Observed: 4.38 ft at 6:15PM Oct 01, 2023Observed: 4.36 ft at 6:30PM Oct 01, 2023Observed: 4.35 ft at 6:45PM Oct 01, 2023Observed: 4.34 ft at 7:00PM Oct 01, 2023Observed: 4.33 ft at 7:15PM Oct 01, 2023Observed: 4.31 ft at 7:30PM Oct 01, 2023Observed: 4.31 ft at 7:45PM Oct 01, 2023Observed: 4.3 ft at 8:00PM Oct 01, 2023Observed: 4.29 ft at 8:15PM Oct 01, 2023Observed: 4.29 ft at 8:30PM Oct 01, 2023Observed: 4.28 ft at 8:45PM Oct 01, 2023Observed: 4.28 ft at 9:00PM Oct 01, 2023Observed: 4.29 ft at 9:15PM Oct 01, 2023Observed: 4.3 ft at 9:30PM Oct 01, 2023Observed: 4.34 ft at 9:45PM Oct 01, 2023Observed: 4.32 ft at 10:00PM Oct 01, 2023Observed: 4.32 ft at 10:15PM Oct 01, 2023Observed: 4.3 ft at 10:30PM Oct 01, 2023Observed: 4.3 ft at 10:45PM Oct 01, 2023Observed: 4.33 ft at 11:00PM Oct 01, 2023Observed: 4.32 ft at 11:15PM Oct 01, 2023Observed: 4.32 ft at 11:30PM Oct 01, 2023Observed: 4.33 ft at 11:45PM Oct 01, 2023Observed: 4.33 ft at 12:00AM Oct 02, 2023Observed: 4.34 ft at 12:15AM Oct 02, 2023Observed: 4.34 ft at 12:30AM Oct 02, 2023Observed: 4.35 ft at 12:45AM Oct 02, 2023Observed: 4.35 ft at 1:00AM Oct 02, 2023Observed: 4.35 ft at 1:15AM Oct 02, 2023Observed: 4.35 ft at 1:30AM Oct 02, 2023Observed: 4.32 ft at 1:45AM Oct 02, 2023Observed: 4.32 ft at 2:00AM Oct 02, 2023Observed: 4.32 ft at 2:15AM Oct 02, 2023Observed: 4.32 ft at 2:30AM Oct 02, 2023Observed: 4.31 ft at 2:45AM Oct 02, 2023Observed: 4.28 ft at 4:00AM Oct 02, 2023Observed: 4.28 ft at 4:15AM Oct 02, 2023Observed: 4.28 ft at 4:30AM Oct 02, 2023Observed: 4.27 ft at 4:45AM Oct 02, 2023Observed: 4.27 ft at 5:00AM Oct 02, 2023Observed: 4.27 ft at 5:15AM Oct 02, 2023Observed: 4.26 ft at 5:30AM Oct 02, 2023Observed: 4.26 ft at 5:45AM Oct 02, 2023Observed: 4.26 ft at 6:00AM Oct 02, 2023Observed: 4.26 ft at 6:15AM Oct 02, 2023Observed: 4.26 ft at 6:30AM Oct 02, 2023Observed: 4.26 ft at 6:45AM Oct 02, 2023Observed: 4.26 ft at 7:00AM Oct 02, 2023Observed: 4.26 ft at 7:15AM Oct 02, 2023Observed: 4.26 ft at 7:30AM Oct 02, 2023Observed: 4.26 ft at 7:45AM Oct 02, 2023Observed: 4.26 ft at 8:00AM Oct 02, 2023Observed: 4.25 ft at 8:15AM Oct 02, 2023Observed: 4.25 ft at 8:30AM Oct 02, 2023Observed: 4.26 ft at 8:45AM Oct 02, 2023Observed: 4.26 ft at 9:00AM Oct 02, 2023Observed: 4.27 ft at 9:15AM Oct 02, 2023Observed: 4.27 ft at 9:30AM Oct 02, 2023Observed: 4.28 ft at 9:45AM Oct 02, 2023Observed: 4.32 ft at 11:00AM Oct 02, 2023Observed: 4.32 ft at 11:15AM Oct 02, 2023Observed: 4.33 ft at 11:30AM Oct 02, 2023Observed: 4.36 ft at 11:45AM Oct 02, 2023Observed: 4.38 ft at 12:00PM Oct 02, 2023Observed: 4.43 ft at 12:15PM Oct 02, 2023Observed: 4.49 ft at 12:30PM Oct 02, 2023Observed: 4.54 ft at 12:45PM Oct 02, 2023Observed: 4.6 ft at 1:00PM Oct 02, 2023Observed: 4.66 ft at 1:15PM Oct 02, 2023Observed: 4.7 ft at 1:30PM Oct 02, 2023Observed: 4.73 ft at 1:45PM Oct 02, 2023Observed: 4.85 ft at 4:00PM Oct 02, 2023Observed: 4.84 ft at 4:15PM Oct 02, 2023Observed: 4.85 ft at 4:30PM Oct 02, 2023Observed: 4.85 ft at 4:45PM Oct 02, 2023Observed: 4.85 ft at 5:00PM Oct 02, 2023Observed: 4.85 ft at 5:15PM Oct 02, 2023Observed: 4.85 ft at 5:30PM Oct 02, 2023Observed: 4.86 ft at 5:45PM Oct 02, 2023Observed: 4.85 ft at 6:00PM Oct 02, 2023Observed: 4.85 ft at 6:15PM Oct 02, 2023Observed: 4.85 ft at 6:30PM Oct 02, 2023Observed: 4.85 ft at 6:45PM Oct 02, 2023Observed: 4.85 ft at 7:00PM Oct 02, 2023Observed: 4.85 ft at 7:15PM Oct 02, 2023Observed: 4.85 ft at 7:30PM Oct 02, 2023Observed: 4.85 ft at 7:45PM Oct 02, 2023Observed: 4.87 ft at 9:00PM Oct 02, 2023Observed: 4.87 ft at 9:15PM Oct 02, 2023Observed: 4.87 ft at 9:30PM Oct 02, 2023Observed: 4.88 ft at 9:45PM Oct 02, 2023Observed: 4.86 ft at 10:00PM Oct 02, 2023Observed: 4.85 ft at 10:15PM Oct 02, 2023Observed: 4.85 ft at 10:30PM Oct 02, 2023Observed: 4.85 ft at 10:45PM Oct 02, 2023Observed: 4.85 ft at 11:00PM Oct 02, 2023Observed: 4.85 ft at 11:15PM Oct 02, 2023Observed: 4.85 ft at 11:30PM Oct 02, 2023Observed: 4.85 ft at 11:45PM Oct 02, 2023Observed: 4.85 ft at 12:00AM Oct 03, 2023Observed: 4.85 ft at 12:15AM Oct 03, 2023Observed: 4.85 ft at 12:30AM Oct 03, 2023Observed: 4.85 ft at 12:45AM Oct 03, 2023Observed: 4.85 ft at 1:00AM Oct 03, 2023Observed: 4.85 ft at 1:15AM Oct 03, 2023Observed: 4.85 ft at 1:30AM Oct 03, 2023Observed: 4.85 ft at 1:45AM Oct 03, 2023Observed: 4.84 ft at 2:00AM Oct 03, 2023Observed: 4.84 ft at 2:15AM Oct 03, 2023Observed: 4.84 ft at 2:30AM Oct 03, 2023Observed: 4.84 ft at 2:45AM Oct 03, 2023Observed: 4.84 ft at 3:00AM Oct 03, 2023Observed: 4.84 ft at 3:15AM Oct 03, 2023Observed: 4.84 ft at 3:30AM Oct 03, 2023Observed: 4.83 ft at 3:45AM Oct 03, 2023Observed: 4.84 ft at 4:00AM Oct 03, 2023Observed: 4.84 ft at 4:15AM Oct 03, 2023Observed: 4.83 ft at 4:30AM Oct 03, 2023Observed: 4.84 ft at 4:45AM Oct 03, 2023Observed: 4.83 ft at 5:00AM Oct 03, 2023Observed: 4.83 ft at 5:15AM Oct 03, 2023Observed: 4.83 ft at 5:30AM Oct 03, 2023Observed: 4.83 ft at 5:45AM Oct 03, 2023Observed: 4.83 ft at 6:00AM Oct 03, 2023Observed: 4.83 ft at 6:15AM Oct 03, 2023Observed: 4.83 ft at 6:30AM Oct 03, 2023Observed: 4.83 ft at 6:45AM Oct 03, 2023Observed: 4.83 ft at 7:00AM Oct 03, 2023Observed: 4.83 ft at 7:15AM Oct 03, 2023Observed: 4.83 ft at 7:30AM Oct 03, 2023Observed: 4.83 ft at 7:45AM Oct 03, 2023Observed: 4.83 ft at 8:00AM Oct 03, 2023Observed: 4.83 ft at 8:15AM Oct 03, 2023Observed: 4.83 ft at 8:30AM Oct 03, 2023Observed: 4.83 ft at 8:45AM Oct 03, 2023USGS--Water Resources of the United StatesVIXG1(plotting HGIRG) Graph Created (9:04AM Oct 3, 2023)ObservedLatest observed value: 4.83 ft at 8:45 AM EDT 3-Oct-2023. Flood Stage is 14 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Automated gauge readings are now available, courtesy of the USGS.

NOTE: Forecasts are not available for the Chattahoochee River at US 41 at Atlanta. Only observed stages are available for this point.

Return to Area Map
Upstream Gauge - at Powers Ferry + I-285 near Atlanta Upstream Gauge Downstream Gauge Downstream Gauge - at Atlanta
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 18
Flood Stage: 14
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 28.59 ft on 09/22/2009
(2) 23.65 ft on 03/17/1990
(3) 22.99 ft on 04/13/1979
(4) 20.50 ft on 10/11/2020
(5) 19.77 ft on 11/11/2009
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.52 ft on 09/08/2021 (P)
(2) 20.50 ft on 10/11/2020
(3) 17.14 ft on 09/17/2020
(4) 14.65 ft on 03/25/2020
(5) 16.10 ft on 02/07/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.51 ft on 01/27/2009
(2) 4.13 ft on 09/15/2016
(3) 4.22 ft on 06/09/2008
Show More Low Water Records

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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
29 Record flooding occurs with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 14 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 11 feet of water. The restrooms at the recreation area will be flooded 9 feet deep with only the roof exposed. This will be worse than the September 2009 flood event.
28 Major flooding expands with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 13 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 10 feet of water. The restrooms at the recreation area will be flooded 8 feet deep with only the roof exposed. This will be similar to the September 2009 flood event.
26 Major flooding expands with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 11 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 8 feet of water. The restrooms at the recreation area will be flooded 6 feet deep.
24 Major flooding continues with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 9 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 6 feet of water. The restrooms at the recreation area will be flooded 4 feet deep.
22 Major flooding continues with widespread inundation flooding of the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 7 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under 4 feet of water. The restrooms at the recreation area will be flooded two feet deep.
20 Major flooding begins. Widespread inundation flooding occurs in the woodlands and large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 5 feet deep over portions of the access road to the recreation area. Portions of the parking lot will be under two feet of water. The restrooms at the recreation area will begin to flood.
18 Moderate flooding begins. Significant flooding occurs in the woodlands and affects large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around 3 feet deep over portions of the access road to the recreation area. Portions of the parking lot will begin to flood.
16 Minor flooding expands in the woodlands and affects large portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will be around one foot deep over portions of the access road to the recreation area.
14 Flood stage is reached. Minor flooding occurs in the woodlands and portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway. The flood waters will reach the top of the concrete boat ramp in the recreation area.
12 Bankfull conditions occur in the woodlands and low lying portions of the Chattahoochee National Recreation Area along the river upstream and downstream from the gage on Cobb Parkway.
About This Location Collapse

Latitude: 33.868056° N, Longitude: 84.453889° 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 750.3 ft 764.3 ft 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  

Current/Historical Observations:

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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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