Yellow River near Snellville
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
- Upstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 06/11/2025 1:15 PM EDTLow Threshold: 0 ftCATEGORY STAGE 
Major Flooding 33 ft Moderate Flooding 30 ft Minor Flooding 23 ft Action 17 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 and future precipitation. Forecast stages may be different if forecast future rainfall does not occur.
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
- 33 - Widespread major flooding begins along the river upstream and downstream of the gage on the Killian Hill Road bridge. At least two residences along the left bank downstream of the gage will have water inundating the lower level. Backyards of residences along the river will be inundated with several feet of water, including up to twelve or more feet in portions of the powerline easement.
- 30 - Widespread moderate flooding begins along the river upstream and downstream of the gage on the Killian Hill Road bridge. Water is several feet deep along the channel and in the powerline easement behind Runnymede Court and Runnymede Drive and is ten or more feet deep in some areas. Water approaches the foundations of some residences. Backyards of residences on Pathfinder Way and Cotswold Drive will be inundated with 1 to 3 feet of water.
- 23 - Minor flooding occurs along the river upstream and downstream of the gage on the Killian Hill Road bridge. Water is 1 to 5 feet deep along the channel and in the powerline easement behind Runnymede Court and Runnymede Drive. Yards of some nearby homes will be flooded with 1 to 3 feet of water.
Gauge Info
| Coordinates | 33.8531, -84.0783 |
| RFC | SERFC |
| State | GA |
| WFO | FFC |
| County | Gwinnett |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 02206500 |
Gauge Location
Recent Crests
| 1. | 23.75 ft | on 09-27-2024 |
| 2. | 18.84 ft | on 04-20-2019 |
| 3. | 13.31 ft | on 02-20-2019 |
| 4. | 20.67 ft | on 12-29-2018 |
| 5. | 15.49 ft | on 12-09-2018 |
Recent Crests
| 1. | 23.75 ft | on 09-27-2024 |
| 2. | 18.84 ft | on 04-20-2019 |
| 3. | 13.31 ft | on 02-20-2019 |
| 4. | 20.67 ft | on 12-29-2018 |
| 5. | 15.49 ft | on 12-09-2018 |
| 6. | 15.09 ft | on 11-13-2018 |
| 7. | 19.67 ft | on 03-17-1990 |
| 8. | 16.77 ft | on 05-07-1956 |
Historic Crests
| 1. | 23.75 ft | on 09-27-2024 |
| 2. | 20.67 ft | on 12-29-2018 |
| 3. | 19.67 ft | on 03-17-1990 |
| 4. | 18.84 ft | on 04-20-2019 |
| 5. | 16.77 ft | on 05-07-1956 |
Historic Crests
| 1. | 23.75 ft | on 09-27-2024 |
| 2. | 20.67 ft | on 12-29-2018 |
| 3. | 19.67 ft | on 03-17-1990 |
| 4. | 18.84 ft | on 04-20-2019 |
| 5. | 16.77 ft | on 05-07-1956 |
| 6. | 15.49 ft | on 12-09-2018 |
| 7. | 15.09 ft | on 11-13-2018 |
| 8. | 13.31 ft | on 02-20-2019 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 834.04 ft |
| moderate Flooding | 831.04 ft |
| minor Flooding | 824.04 ft |
| action | 818.04 ft |
| Latest Value | 807.63 ft |
| Gauge Zero | 801.04 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.