St. Marks River near Newport on Old Magnolia Rd
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 unavailableDownstream gauge unavailableWarning: 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) 06/17/2025 6:00 AM EDTRecord: 13.9 ftLow Threshold: 6 ftCATEGORY STAGE 
Major Flooding 11 ft Moderate Flooding 9 ft Minor Flooding 8 ft Action 7 ft Reliability of the Forecast: Based on unobstructed flow
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
Due to the potential threat of storm surge traveling upstream through the river from the coast, refer to storm surge watches and warnings issued by the National Hurricane Center for this location. Once the threat of storm surge flooding has passed, official river forecasts will resume for this location.
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
- 14 - Extensive flooding of the area occurs with water entering several elevated structures on Old Magnolia Road in Wakulla County.
- 13.5 - In Leon County, water reaches the base of the road bridge on Natural Bridge Road.
- 13 - Water begins to flood some elevated structures along the St Marks River along Old Magnolia Road in Wakulla County.
Gauge Info
| Coordinates | 30.2711, -84.1483 |
| RFC | SERFC |
| State | FL |
| WFO | TAE |
| County | Wakulla |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 02326900 |
Gauge Location
Recent Crests
| 1. | 8.23 ft | on 01-05-2021 |
| 2. | 8.15 ft | on 09-19-2020 |
| 3. | 8.61 ft | on 12-14-2018 |
| 4. | 7.97 ft | on 12-05-2018 |
| 5. | 8.10 ft | on 06-07-2017 |
Recent Crests
| 1. | 8.23 ft | on 01-05-2021 |
| 2. | 8.15 ft | on 09-19-2020 |
| 3. | 8.61 ft | on 12-14-2018 |
| 4. | 7.97 ft | on 12-05-2018 |
| 5. | 8.10 ft | on 06-07-2017 |
| 6. | 7.23 ft | on 01-25-2017 |
| 7. | 8.35 ft | on 09-06-2016 |
| 8. | 7.68 ft | on 09-02-2016 |
| 9. | 9.40 ft | on 04-04-2016 |
| 10. | 7.41 ft | on 03-30-2016 |
| 11. | 8.96 ft | on 05-02-2014 |
| 12. | 8.50 ft | on 03-19-2014 |
| 13. | 8.13 ft | on 07-25-2013 |
| 14. | 9.19 ft | on 07-04-2013 |
| 15. | 9.45 ft | on 04-04-2009 |
| 16. | 13.88 ft | on 08-25-2008 |
| 17. | 7.20 ft | on 07-02-1997 |
| 18. | 8.00 ft | on 10-10-1996 |
| 19. | 7.00 ft | on 03-07-1993 |
| 20. | 11.18 ft | on 03-05-1991 |
| 21. | 8.90 ft | on 02-01-1991 |
| 22. | 7.51 ft | on 02-23-1990 |
| 23. | 7.43 ft | on 06-16-1989 |
| 24. | 7.60 ft | on 03-07-1988 |
| 25. | 8.63 ft | on 04-01-1987 |
| 26. | 8.40 ft | on 02-12-1986 |
| 27. | 10.26 ft | on 04-10-1984 |
| 28. | 11.81 ft | on 04-07-1973 |
| 29. | 8.52 ft | on 09-01-1961 |
| 30. | 7.66 ft | on 10-11-1959 |
| 31. | 9.34 ft | on 10-01-1958 |
| 32. | 10.01 ft | on 09-18-1957 |
Historic Crests
| 1. | 13.88 ft | on 08-25-2008 |
| 2. | 11.81 ft | on 04-07-1973 |
| 3. | 11.18 ft | on 03-05-1991 |
| 4. | 10.26 ft | on 04-10-1984 |
| 5. | 10.01 ft | on 09-18-1957 |
Historic Crests
| 1. | 13.88 ft | on 08-25-2008 |
| 2. | 11.81 ft | on 04-07-1973 |
| 3. | 11.18 ft | on 03-05-1991 |
| 4. | 10.26 ft | on 04-10-1984 |
| 5. | 10.01 ft | on 09-18-1957 |
| 6. | 9.45 ft | on 04-04-2009 |
| 7. | 9.40 ft | on 04-04-2016 |
| 8. | 9.34 ft | on 10-01-1958 |
| 9. | 9.19 ft | on 07-04-2013 |
| 10. | 8.96 ft | on 05-02-2014 |
| 11. | 8.90 ft | on 02-01-1991 |
| 12. | 8.63 ft | on 04-01-1987 |
| 13. | 8.61 ft | on 12-14-2018 |
| 14. | 8.52 ft | on 09-01-1961 |
| 15. | 8.50 ft | on 03-19-2014 |
| 16. | 8.40 ft | on 02-12-1986 |
| 17. | 8.35 ft | on 09-06-2016 |
| 18. | 8.23 ft | on 01-05-2021 |
| 19. | 8.15 ft | on 09-19-2020 |
| 20. | 8.13 ft | on 07-25-2013 |
| 21. | 8.10 ft | on 06-07-2017 |
| 22. | 8.00 ft | on 10-10-1996 |
| 23. | 7.97 ft | on 12-05-2018 |
| 24. | 7.68 ft | on 09-02-2016 |
| 25. | 7.66 ft | on 10-11-1959 |
| 26. | 7.60 ft | on 03-07-1988 |
| 27. | 7.51 ft | on 02-23-1990 |
| 28. | 7.43 ft | on 06-16-1989 |
| 29. | 7.41 ft | on 03-30-2016 |
| 30. | 7.23 ft | on 01-25-2017 |
| 31. | 7.20 ft | on 07-02-1997 |
| 32. | 7.00 ft | on 03-07-1993 |
Unique Local Info
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.
