Chattahoochee River at Highway 141 near Norcross
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
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Observed (OBS) 06/18/2025 9:15 AM EDTRecord: 27.7 ftCATEGORY STAGE 
Major Flooding 20 ft Moderate Flooding 16 ft Minor Flooding 12 ft Action 10 ft Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
Gauge reading affected by reservoir operations.
River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 28 - Record flooding not seen since January 1946 will inundate property along the river upstream and downstream from the gage on Medlock Bridge Road. Flood waters submerge numerous homes to their roofs in the area including those on Marsh Park Drive...Vista Bluff Drive...Hershinger Close and Saint Georgen Common. The Medlock Bridge Road will be under 4 feet of water. The Atlanta Athletic Club Golf Course will be flooded up to 14 feet deep.
- 24 - Major flooding expands with widespread inundation of property along the river upstream and downstream from the gage on Medlock Bridge Road. Flood waters submerge numerous homes and access roads in the area including those on Marsh Park Drive...Vista Bluff Drive...Hershinger Close and Saint Georgen Common. The Medlock Bridge Road will begin to flood. Large portions of the Atlanta Athletic Club Golf Course will be flooded up to 10 feet deep.
- 20 - Major flooding begins with widespread inundation of property along the river upstream and downstream from the gage on Medlock Bridge Road. Flood waters affect numerous homes in the area including those on Marsh Park Drive...Vista Bluff Drive...Hershinger Close and Saint Georgen Common. Some access roads will be flooded. The Medlock Bridge Park in the Chattahoochee River National Recreation Area and large portions of the Atlanta Athletic Club Golf Course will be flooded up to 8 feet deep.
Gauge Location
Recent Crests
| 1. | 14.01 ft | on 10-11-2020 |
| 2. | 12.43 ft | on 05-19-2013 |
| 3. | 14.51 ft | on 09-22-2009 |
| 4. | 12.47 ft | on 03-16-1973 |
| 5. | 13.10 ft | on 04-05-1964 |
Recent Crests
| 1. | 14.01 ft | on 10-11-2020 |
| 2. | 12.43 ft | on 05-19-2013 |
| 3. | 14.51 ft | on 09-22-2009 |
| 4. | 12.47 ft | on 03-16-1973 |
| 5. | 13.10 ft | on 04-05-1964 |
| 6. | 12.05 ft | on 11-22-1962 |
| 7. | 15.80 ft | on 02-09-1955 |
| 8. | 20.00 ft | on 01-17-1954 |
| 9. | 15.00 ft | on 01-11-1953 |
| 10. | 22.00 ft | on 03-12-1952 |
| 11. | 12.00 ft | on 03-14-1950 |
| 12. | 20.20 ft | on 01-07-1949 |
| 13. | 15.40 ft | on 08-06-1948 |
| 14. | 20.10 ft | on 01-21-1947 |
| 15. | 27.70 ft | on 01-08-1946 |
| 16. | 18.00 ft | on 03-30-1944 |
| 17. | 14.80 ft | on 12-31-1942 |
| 18. | 17.30 ft | on 02-18-1942 |
| 19. | 18.00 ft | on 08-15-1940 |
| 20. | 12.40 ft | on 08-19-1939 |
| 21. | 13.90 ft | on 07-23-1938 |
| 22. | 18.10 ft | on 01-04-1937 |
| 23. | 22.20 ft | on 04-07-1936 |
| 24. | 13.60 ft | on 10-07-1934 |
| 25. | 19.90 ft | on 03-05-1934 |
| 26. | 20.00 ft | on 12-29-1932 |
| 27. | 14.70 ft | on 12-16-1931 |
| 28. | 13.00 ft | on 03-08-1930 |
| 29. | 19.60 ft | on 09-27-1929 |
| 30. | 12.80 ft | on 08-17-1928 |
| 31. | 14.80 ft | on 01-19-1926 |
| 32. | 13.40 ft | on 01-19-1925 |
| 33. | 14.60 ft | on 12-18-1922 |
| 34. | 12.40 ft | on 03-11-1922 |
| 35. | 20.40 ft | on 02-10-1921 |
| 36. | 27.10 ft | on 12-13-1919 |
| 37. | 27.10 ft | on 12-10-1919 |
| 38. | 21.30 ft | on 12-23-1918 |
| 39. | 16.90 ft | on 03-25-1917 |
| 40. | 21.40 ft | on 12-30-1915 |
| 41. | 14.80 ft | on 12-05-1914 |
| 42. | 13.40 ft | on 03-15-1913 |
| 43. | 19.30 ft | on 04-16-1912 |
| 44. | 12.20 ft | on 04-06-1911 |
| 45. | 16.00 ft | on 03-14-1909 |
| 46. | 14.30 ft | on 04-26-1908 |
| 47. | 16.40 ft | on 01-04-1906 |
| 48. | 12.20 ft | on 01-13-1905 |
| 49. | 20.60 ft | on 03-24-1903 |
| 50. | 23.40 ft | on 04-01-1886 |
Historic Crests
| 1. | 27.70 ft | on 01-08-1946 |
| 2. | 27.10 ft | on 12-13-1919 |
| 3. | 27.10 ft | on 12-10-1919 |
| 4. | 23.40 ft | on 04-01-1886 |
| 5. | 22.20 ft | on 04-07-1936 |
Historic Crests
| 1. | 27.70 ft | on 01-08-1946 |
| 2. | 27.10 ft | on 12-13-1919 |
| 3. | 27.10 ft | on 12-10-1919 |
| 4. | 23.40 ft | on 04-01-1886 |
| 5. | 22.20 ft | on 04-07-1936 |
| 6. | 22.00 ft | on 03-12-1952 |
| 7. | 21.40 ft | on 12-30-1915 |
| 8. | 21.30 ft | on 12-23-1918 |
| 9. | 20.60 ft | on 03-24-1903 |
| 10. | 20.40 ft | on 02-10-1921 |
| 11. | 20.20 ft | on 01-07-1949 |
| 12. | 20.10 ft | on 01-21-1947 |
| 13. | 20.00 ft | on 01-17-1954 |
| 14. | 20.00 ft | on 12-29-1932 |
| 15. | 19.90 ft | on 03-05-1934 |
| 16. | 19.60 ft | on 09-27-1929 |
| 17. | 19.30 ft | on 04-16-1912 |
| 18. | 18.10 ft | on 01-04-1937 |
| 19. | 18.00 ft | on 08-15-1940 |
| 20. | 18.00 ft | on 03-30-1944 |
| 21. | 17.30 ft | on 02-18-1942 |
| 22. | 16.90 ft | on 03-25-1917 |
| 23. | 16.40 ft | on 01-04-1906 |
| 24. | 16.00 ft | on 03-14-1909 |
| 25. | 15.80 ft | on 02-09-1955 |
| 26. | 15.40 ft | on 08-06-1948 |
| 27. | 15.00 ft | on 01-11-1953 |
| 28. | 14.80 ft | on 12-05-1914 |
| 29. | 14.80 ft | on 12-31-1942 |
| 30. | 14.80 ft | on 01-19-1926 |
| 31. | 14.70 ft | on 12-16-1931 |
| 32. | 14.60 ft | on 12-18-1922 |
| 33. | 14.51 ft | on 09-22-2009 |
| 34. | 14.30 ft | on 04-26-1908 |
| 35. | 14.01 ft | on 10-11-2020 |
| 36. | 13.90 ft | on 07-23-1938 |
| 37. | 13.60 ft | on 10-07-1934 |
| 38. | 13.40 ft | on 03-15-1913 |
| 39. | 13.40 ft | on 01-19-1925 |
| 40. | 13.10 ft | on 04-05-1964 |
| 41. | 13.00 ft | on 03-08-1930 |
| 42. | 12.80 ft | on 08-17-1928 |
| 43. | 12.47 ft | on 03-16-1973 |
| 44. | 12.43 ft | on 05-19-2013 |
| 45. | 12.40 ft | on 08-19-1939 |
| 46. | 12.40 ft | on 03-11-1922 |
| 47. | 12.20 ft | on 04-06-1911 |
| 48. | 12.20 ft | on 01-13-1905 |
| 49. | 12.05 ft | on 11-22-1962 |
| 50. | 12.00 ft | on 03-14-1950 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NAVD88 | STND |
|---|---|---|
| major Flooding | 898.15 ft | 20.00 ft |
| moderate Flooding | 894.15 ft | 16.00 ft |
| minor Flooding | 890.15 ft | 12.00 ft |
| action | 888.15 ft | 10.00 ft |
| Latest Value | 881.17 ft | 3.02 ft |
| Gauge Zero | 878.15 ft | 0.00 ft |
Gauge Photos
No Images Found
Unique Local Info
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Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels |
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| 10 Day (HEFS) | 7 Day (NAEFS) | 7 Day (GEFS) |
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Note: Use the official hydrograph at the top of this web page for river levels within the next 72 Hours.
Collaborative Agencies
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.