Red River at Port Royal, TN Flow & Water Level

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 03436100 sits on the Red River and reads everything draining 926 square miles of the Red basin. Only 496 square miles of that contributes flow in a normal year; the rest is closed basin that does not drain to the river. Its datum sits 376 feet above sea level NGVD29. Daily flow has been on record here since 1961, 61 years of it.

Normal flows here

The Red River runs a median of 738 cfs at this gauge across 61 years of record. February is the fullest month at a median 1,660 cfs, and October the leanest at 172 cfs. The highest daily mean on record is 60,600 cfs in 2010, and the lowest is 49 cfs in 2008.

Medians from the USGS daily-statistics record, 1961 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Red River reaches flood stage at this gauge at 30 feet. NWS starts watching it at 25 feet. The highest crest on record is 49.5 feet, in May 2010.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge PORT1. Stages are gage height, not depth. Not for navigation.

TVA dams near this gauge

TVA's Cheatham Dam is 17 miles from this gauge on the Cumberland system. Planned generation, lake level and tailwater elevation for it load below when TVA has published them.

• Cheatham Dam 17 miles