Snapfinger Creek at Thompson Mill Road near Lithonia
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
- Downstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.No secondary data available. Transformations for Flow data and a secondary Y axis cannot be made at this time.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/08/2025 6:30 AM EDTCATEGORY STAGE 
Major Flooding 28 ft Moderate Flooding 25 ft Minor Flooding 16 ft Action 14 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
Automated gauge readings are now available, courtesy of the USGS.
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 - Major flooding begins. Widespread inundation flooding affects the woodlands and several homes along the creek upstream and downstream from the gage on Thompson Mill Road. Flood waters reach the foundations and enter garages of a few homes on Thompson Mill Road. Also the water reaches the bottom of the Thompson Mill Road bridge and city officials may need to close it.
- 25 - Moderate flooding begins. The flooding expands further into the woodlands and yards of homes along the creek upstream and downstream from the gage on Thompson Mill Road. The flood waters reach the foundation of a few homes on Thompson Mill Road.
- 22 - Minor flooding expands further into the woodlands and yards of homes along the creek upstream and downstream from the gage on Thompson Mill Road.
Gauge Info
| Coordinates | 33.6967, -84.1986 |
| RFC | SERFC |
| State | GA |
| WFO | FFC |
| County | De Kalb |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 02203960 |
Gauge Location
Recent Crests
| 1. | 17.09 ft | on 09-27-2024 |
| 2. | 17.54 ft | on 10-11-2020 |
| 3. | 17.11 ft | on 12-25-2015 |
Recent Crests
| 1. | 17.09 ft | on 09-27-2024 |
| 2. | 17.54 ft | on 10-11-2020 |
| 3. | 17.11 ft | on 12-25-2015 |
Historic Crests
| 1. | 17.54 ft | on 10-11-2020 |
| 2. | 17.11 ft | on 12-25-2015 |
| 3. | 17.09 ft | on 09-27-2024 |
Historic Crests
| 1. | 17.54 ft | on 10-11-2020 |
| 2. | 17.11 ft | on 12-25-2015 |
| 3. | 17.09 ft | on 09-27-2024 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 777.26 ft |
| moderate Flooding | 774.26 ft |
| minor Flooding | 765.26 ft |
| action | 763.26 ft |
| Latest Value | 753.88 ft |
| Gauge Zero | 749.26 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.