Alcovy River at New Hope Road near Grayson
No watches, warnings or advisories are in effect for this area.
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/14/2025 12:45 PM EDTCATEGORY STAGE 
Major Flooding 16 ft Moderate Flooding 11 ft Minor Flooding 9 ft Action 7 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
Automated gauge readings are now available, courtesy of the USGS.
River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 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
- 15 - Significant flooding continues to expand further into the woodlands upstream and downstream from the river gage at New Hope Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. The flood water will be around one foot deep over the road and county officials will have the bridge closed. The high water will likely affect the performance of the USGS gaging equipment near the bridge.
- 14 - Significant flooding continues to expand further into the woodlands upstream and downstream from the river gage at New Hope Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. The water will begin to flood the road and county officials will likely close the bridge. Also the water level reaches the bottom of the USGS gaging equipment near the bridge.
- 13 - Significant flooding continues to expand further into the woodlands upstream and downstream from the river gauge at New Hope Road. The bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. County officials may need to close the bridge.
Gauge Info
| Coordinates | 33.9169, -83.8881 |
| RFC | SERFC |
| State | GA |
| WFO | FFC |
| County | Gwinnett |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 02208150 |
Gauge Location
Recent Crests
| 1. | 11.79 ft | on 02-13-2025 |
| 2. | 11.97 ft | on 09-27-2024 |
| 3. | 10.79 ft | on 03-06-2024 |
| 4. | 12.61 ft | on 01-09-2024 |
| 5. | 9.29 ft | on 06-21-2023 |
Recent Crests
| 1. | 11.79 ft | on 02-13-2025 |
| 2. | 11.97 ft | on 09-27-2024 |
| 3. | 10.79 ft | on 03-06-2024 |
| 4. | 12.61 ft | on 01-09-2024 |
| 5. | 9.29 ft | on 06-21-2023 |
| 6. | 10.35 ft | on 01-04-2023 |
| 7. | 11.26 ft | on 07-21-2022 |
| 8. | 10.37 ft | on 04-06-2022 |
| 9. | 10.43 ft | on 02-04-2022 |
| 10. | 10.15 ft | on 07-25-2021 |
| 11. | 9.25 ft | on 05-05-2021 |
| 12. | 9.11 ft | on 05-04-2021 |
| 13. | 11.76 ft | on 10-11-2020 |
| 14. | 12.48 ft | on 09-17-2020 |
| 15. | 10.74 ft | on 08-31-2020 |
| 16. | 10.18 ft | on 02-19-2020 |
| 17. | 9.24 ft | on 02-13-2020 |
| 18. | 10.81 ft | on 02-06-2020 |
| 19. | 9.58 ft | on 01-03-2020 |
| 20. | 13.64 ft | on 04-19-2019 |
| 21. | 9.13 ft | on 01-24-2019 |
| 22. | 9.62 ft | on 01-04-2019 |
| 23. | 11.52 ft | on 12-28-2018 |
| 24. | 9.64 ft | on 12-09-2018 |
| 25. | 9.37 ft | on 11-13-2018 |
| 26. | 9.14 ft | on 08-03-2018 |
| 27. | 9.77 ft | on 06-27-2018 |
| 28. | 9.29 ft | on 05-30-2018 |
| 29. | 10.11 ft | on 04-05-2017 |
| 30. | 10.12 ft | on 01-21-2017 |
| 31. | 10.54 ft | on 02-03-2016 |
| 32. | 9.32 ft | on 01-22-2016 |
| 33. | 9.67 ft | on 12-29-2015 |
| 34. | 10.00 ft | on 12-24-2015 |
| 35. | 9.36 ft | on 11-07-2015 |
| 36. | 11.02 ft | on 11-02-2015 |
| 37. | 12.74 ft | on 08-23-2015 |
| 38. | 9.31 ft | on 08-19-2015 |
| 39. | 9.45 ft | on 01-04-2015 |
| 40. | 10.10 ft | on 04-07-2014 |
| 41. | 10.81 ft | on 01-11-2014 |
| 42. | 9.17 ft | on 12-23-2013 |
| 43. | 10.93 ft | on 05-19-2013 |
| 44. | 9.56 ft | on 05-05-2013 |
| 45. | 9.07 ft | on 12-01-2010 |
| 46. | 10.74 ft | on 05-03-2010 |
| 47. | 9.35 ft | on 02-05-2010 |
| 48. | 12.09 ft | on 01-25-2010 |
| 49. | 9.67 ft | on 12-25-2009 |
| 50. | 9.86 ft | on 12-19-2009 |
| 51. | 10.63 ft | on 11-11-2009 |
| 52. | 12.02 ft | on 10-12-2009 |
| 53. | 13.85 ft | on 09-22-2009 |
| 54. | 11.20 ft | on 09-21-2009 |
| 55. | 9.70 ft | on 09-16-2009 |
| 56. | 9.19 ft | on 11-15-2006 |
| 57. | 9.22 ft | on 10-08-2005 |
| 58. | 11.98 ft | on 03-28-2005 |
| 59. | 12.14 ft | on 09-17-2004 |
| 60. | 14.93 ft | on 06-17-2003 |
| 61. | 9.63 ft | on 03-04-2002 |
| 62. | 9.46 ft | on 03-15-2001 |
Historic Crests
| 1. | 14.93 ft | on 06-17-2003 |
| 2. | 13.85 ft | on 09-22-2009 |
| 3. | 13.64 ft | on 04-19-2019 |
| 4. | 12.74 ft | on 08-23-2015 |
| 5. | 12.61 ft | on 01-09-2024 |
Historic Crests
| 1. | 14.93 ft | on 06-17-2003 |
| 2. | 13.85 ft | on 09-22-2009 |
| 3. | 13.64 ft | on 04-19-2019 |
| 4. | 12.74 ft | on 08-23-2015 |
| 5. | 12.61 ft | on 01-09-2024 |
| 6. | 12.48 ft | on 09-17-2020 |
| 7. | 12.14 ft | on 09-17-2004 |
| 8. | 12.09 ft | on 01-25-2010 |
| 9. | 12.02 ft | on 10-12-2009 |
| 10. | 11.98 ft | on 03-28-2005 |
| 11. | 11.97 ft | on 09-27-2024 |
| 12. | 11.79 ft | on 02-13-2025 |
| 13. | 11.76 ft | on 10-11-2020 |
| 14. | 11.52 ft | on 12-28-2018 |
| 15. | 11.26 ft | on 07-21-2022 |
| 16. | 11.20 ft | on 09-21-2009 |
| 17. | 11.02 ft | on 11-02-2015 |
| 18. | 10.93 ft | on 05-19-2013 |
| 19. | 10.81 ft | on 01-11-2014 |
| 20. | 10.81 ft | on 02-06-2020 |
| 21. | 10.79 ft | on 03-06-2024 |
| 22. | 10.74 ft | on 08-31-2020 |
| 23. | 10.74 ft | on 05-03-2010 |
| 24. | 10.63 ft | on 11-11-2009 |
| 25. | 10.54 ft | on 02-03-2016 |
| 26. | 10.43 ft | on 02-04-2022 |
| 27. | 10.37 ft | on 04-06-2022 |
| 28. | 10.35 ft | on 01-04-2023 |
| 29. | 10.18 ft | on 02-19-2020 |
| 30. | 10.15 ft | on 07-25-2021 |
| 31. | 10.12 ft | on 01-21-2017 |
| 32. | 10.11 ft | on 04-05-2017 |
| 33. | 10.10 ft | on 04-07-2014 |
| 34. | 10.00 ft | on 12-24-2015 |
| 35. | 9.86 ft | on 12-19-2009 |
| 36. | 9.77 ft | on 06-27-2018 |
| 37. | 9.70 ft | on 09-16-2009 |
| 38. | 9.67 ft | on 12-25-2009 |
| 39. | 9.67 ft | on 12-29-2015 |
| 40. | 9.64 ft | on 12-09-2018 |
| 41. | 9.63 ft | on 03-04-2002 |
| 42. | 9.62 ft | on 01-04-2019 |
| 43. | 9.58 ft | on 01-03-2020 |
| 44. | 9.56 ft | on 05-05-2013 |
| 45. | 9.46 ft | on 03-15-2001 |
| 46. | 9.45 ft | on 01-04-2015 |
| 47. | 9.37 ft | on 11-13-2018 |
| 48. | 9.36 ft | on 11-07-2015 |
| 49. | 9.35 ft | on 02-05-2010 |
| 50. | 9.32 ft | on 01-22-2016 |
| 51. | 9.31 ft | on 08-19-2015 |
| 52. | 9.29 ft | on 05-30-2018 |
| 53. | 9.29 ft | on 06-21-2023 |
| 54. | 9.25 ft | on 05-05-2021 |
| 55. | 9.24 ft | on 02-13-2020 |
| 56. | 9.22 ft | on 10-08-2005 |
| 57. | 9.19 ft | on 11-15-2006 |
| 58. | 9.17 ft | on 12-23-2013 |
| 59. | 9.14 ft | on 08-03-2018 |
| 60. | 9.13 ft | on 01-24-2019 |
| 61. | 9.11 ft | on 05-04-2021 |
| 62. | 9.07 ft | on 12-01-2010 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NAVD88 | STND |
|---|---|---|
| major Flooding | 801.51 ft | 16.00 ft |
| moderate Flooding | 796.51 ft | 11.00 ft |
| minor Flooding | 794.51 ft | 9.00 ft |
| action | 792.51 ft | 7.00 ft |
| Latest Value | 788.75 ft | 3.24 ft |
| Gauge Zero | 785.51 ft | 0.00 ft |
Gauge Photos
No Images Found
Probability Information
No Images Available
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.
Resources
Hydrologic Resource Links
Additional Resource Links
WFO Information
Weather Forecast Office
Peachtree City/Atlanta
4 Falcon Drive
Peachtree City, GA 30269
Official Homepage