Red River near Port Royal
Flash Flood Warning
Flood Warning
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) 04/03/2025 1:30 PM CDTOfficial Forecast (FCST) 04/03/2025 1:22 PM CDTRecord: 49.5 ftCATEGORY STAGE 
Major Flooding 40 ft Moderate Flooding 38 ft Minor Flooding 30 ft Action 25 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
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
- 52 - Record flooding is impacting many homes near the river, and many main roads are affected as well including the northbound lanes of I-24, Hwy 161, Porters Chapel Rd, portions of Hwy 238 near Port Royal State Park, Warfield Blvd near Shady Bluff Trail, Buzzard Creek Rd, and Keysburg Rd.
- 50 - Widespread flooding is impacting homes on Rivermont Dr, River Run, Idlewood Dr, Wimbledon Ct, Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, Riverhaven Dr, Stonegate Dr and Willow Bend Dr. Water reaches Hwy 161, Porters Chapel Rd, Hwy 238 near Port Royal State Park, the northbound lanes of I-24, Warfield Blvd near Shady Bluff Trail, Buzzard Creek Rd, and Keysburg Rd. Water approaches Hwy 238 near Port Royal Rd just south of Port Royal State Park which may be impassable.
- 48 - Flooding continues to impact homes on Rivermont Dr, River Run, Idlewood Dr, Wimbledon Ct, Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, Riverhaven Dr, Stonegate Dr and Willow Bend Dr. Water reaches Hwy 161 near the state line, Porters Chapel Rd near Hugh Gill Rd, and Hwy 238 near Port Royal State Park. Water approaches northbound lanes of I-24 near the river, Warfield Blvd near Shady Bluff Trail, Buzzard Creek Rd, and Keysburg Rd, which may be impassable at higher levels.
Gauge Info
| Coordinates | 36.5539, -87.1419 |
| RFC | OHRFC |
| State | TN |
| WFO | OHX |
| County | Montgomery |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 03436100 |
Gauge Location
Recent Crests
| 1. | 37.52 ft | on 02-24-2019 |
| 2. | 49.48 ft | on 05-03-2010 |
| 3. | 34.59 ft | on 01-28-2009 |
| 4. | 35.20 ft | on 04-04-2008 |
| 5. | 22.16 ft | on 05-06-2007 |
Recent Crests
| 1. | 37.52 ft | on 02-24-2019 |
| 2. | 49.48 ft | on 05-03-2010 |
| 3. | 34.59 ft | on 01-28-2009 |
| 4. | 35.20 ft | on 04-04-2008 |
| 5. | 22.16 ft | on 05-06-2007 |
| 6. | 22.48 ft | on 01-23-2006 |
| 7. | 28.96 ft | on 08-31-2005 |
| 8. | 26.61 ft | on 04-23-2004 |
| 9. | 33.71 ft | on 02-16-2003 |
| 10. | 28.74 ft | on 11-30-2001 |
| 11. | 20.71 ft | on 02-17-2001 |
| 12. | 14.03 ft | on 04-25-2000 |
| 13. | 37.88 ft | on 01-23-1999 |
| 14. | 38.05 ft | on 06-11-1998 |
| 15. | 41.46 ft | on 03-03-1997 |
| 16. | 23.63 ft | on 03-08-1996 |
| 17. | 32.62 ft | on 05-19-1995 |
| 18. | 34.13 ft | on 03-10-1994 |
| 19. | 25.00 ft | on 05-04-1993 |
| 20. | 30.45 ft | on 12-03-1991 |
| 21. | 35.45 ft | on 12-22-1990 |
| 22. | 37.91 ft | on 02-04-1990 |
| 23. | 37.24 ft | on 02-15-1989 |
| 24. | 27.01 ft | on 01-20-1988 |
| 25. | 29.51 ft | on 03-01-1987 |
| 26. | 24.95 ft | on 02-18-1986 |
| 27. | 25.81 ft | on 11-19-1984 |
| 28. | 40.54 ft | on 05-08-1984 |
| 29. | 42.36 ft | on 05-20-1983 |
| 30. | 27.99 ft | on 01-24-1982 |
| 31. | 36.69 ft | on 06-07-1981 |
| 32. | 28.44 ft | on 12-14-1979 |
| 33. | 42.14 ft | on 12-09-1978 |
| 34. | 31.71 ft | on 12-05-1977 |
| 35. | 32.80 ft | on 03-04-1977 |
| 36. | 32.41 ft | on 03-30-1976 |
| 37. | 48.26 ft | on 03-13-1975 |
| 38. | 39.36 ft | on 01-11-1974 |
| 39. | 34.42 ft | on 12-09-1972 |
| 40. | 23.98 ft | on 01-28-1972 |
| 41. | 25.46 ft | on 02-23-1971 |
| 42. | 31.85 ft | on 04-02-1970 |
| 43. | 31.52 ft | on 06-24-1969 |
| 44. | 39.50 ft | on 04-05-1968 |
| 45. | 33.11 ft | on 05-15-1967 |
| 46. | 20.00 ft | on 02-14-1966 |
| 47. | 31.03 ft | on 02-12-1965 |
| 48. | 34.22 ft | on 03-10-1964 |
| 49. | 25.70 ft | on 03-06-1963 |
| 50. | 43.18 ft | on 02-27-1962 |
| 51. | 44.40 ft | on 01-23-1937 |
Historic Crests
| 1. | 49.48 ft | on 05-03-2010 |
| 2. | 48.26 ft | on 03-13-1975 |
| 3. | 44.40 ft | on 01-23-1937 |
| 4. | 43.18 ft | on 02-27-1962 |
| 5. | 42.36 ft | on 05-20-1983 |
Historic Crests
| 1. | 49.48 ft | on 05-03-2010 |
| 2. | 48.26 ft | on 03-13-1975 |
| 3. | 44.40 ft | on 01-23-1937 |
| 4. | 43.18 ft | on 02-27-1962 |
| 5. | 42.36 ft | on 05-20-1983 |
| 6. | 42.14 ft | on 12-09-1978 |
| 7. | 41.46 ft | on 03-03-1997 |
| 8. | 40.54 ft | on 05-08-1984 |
| 9. | 39.50 ft | on 04-05-1968 |
| 10. | 39.36 ft | on 01-11-1974 |
| 11. | 38.05 ft | on 06-11-1998 |
| 12. | 37.91 ft | on 02-04-1990 |
| 13. | 37.88 ft | on 01-23-1999 |
| 14. | 37.52 ft | on 02-24-2019 |
| 15. | 37.24 ft | on 02-15-1989 |
| 16. | 36.69 ft | on 06-07-1981 |
| 17. | 35.45 ft | on 12-22-1990 |
| 18. | 35.20 ft | on 04-04-2008 |
| 19. | 34.59 ft | on 01-28-2009 |
| 20. | 34.42 ft | on 12-09-1972 |
| 21. | 34.22 ft | on 03-10-1964 |
| 22. | 34.13 ft | on 03-10-1994 |
| 23. | 33.71 ft | on 02-16-2003 |
| 24. | 33.11 ft | on 05-15-1967 |
| 25. | 32.80 ft | on 03-04-1977 |
| 26. | 32.62 ft | on 05-19-1995 |
| 27. | 32.41 ft | on 03-30-1976 |
| 28. | 31.85 ft | on 04-02-1970 |
| 29. | 31.71 ft | on 12-05-1977 |
| 30. | 31.52 ft | on 06-24-1969 |
| 31. | 31.03 ft | on 02-12-1965 |
| 32. | 30.45 ft | on 12-03-1991 |
| 33. | 29.51 ft | on 03-01-1987 |
| 34. | 28.96 ft | on 08-31-2005 |
| 35. | 28.74 ft | on 11-30-2001 |
| 36. | 28.44 ft | on 12-14-1979 |
| 37. | 27.99 ft | on 01-24-1982 |
| 38. | 27.01 ft | on 01-20-1988 |
| 39. | 26.61 ft | on 04-23-2004 |
| 40. | 25.81 ft | on 11-19-1984 |
| 41. | 25.70 ft | on 03-06-1963 |
| 42. | 25.46 ft | on 02-23-1971 |
| 43. | 25.00 ft | on 05-04-1993 |
| 44. | 24.95 ft | on 02-18-1986 |
| 45. | 23.98 ft | on 01-28-1972 |
| 46. | 23.63 ft | on 03-08-1996 |
| 47. | 22.48 ft | on 01-23-2006 |
| 48. | 22.16 ft | on 05-06-2007 |
| 49. | 20.71 ft | on 02-17-2001 |
| 50. | 20.00 ft | on 02-14-1966 |
| 51. | 14.03 ft | on 04-25-2000 |
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.
Click individual graphics to enlarge.
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.