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Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS) at a repurposed https://water.noaa.gov. A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id: https://preview.water.noaa.gov/gauges/SSSSS.

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Red River near Port Royal Stage (ft)Flow (kcfs)Observed: 6.97 ft at 1:30PM Feb 21, 2024Observed: 6.97 ft at 2:00PM Feb 21, 2024Observed: 6.96 ft at 2:30PM Feb 21, 2024Observed: 6.95 ft at 3:00PM Feb 21, 2024Observed: 6.94 ft at 3:30PM Feb 21, 2024Observed: 6.94 ft at 4:00PM Feb 21, 2024Observed: 6.93 ft at 4:30PM Feb 21, 2024Observed: 6.92 ft at 5:00PM Feb 21, 2024Observed: 6.91 ft at 5:30PM Feb 21, 2024Observed: 6.91 ft at 6:00PM Feb 21, 2024Observed: 6.9 ft at 6:30PM Feb 21, 2024Observed: 6.89 ft at 7:00PM Feb 21, 2024Observed: 6.89 ft at 7:30PM Feb 21, 2024Observed: 6.88 ft at 8:00PM Feb 21, 2024Observed: 6.88 ft at 8:30PM Feb 21, 2024Observed: 6.87 ft at 9:00PM Feb 21, 2024Observed: 6.87 ft at 9:30PM Feb 21, 2024Observed: 6.86 ft at 10:00PM Feb 21, 2024Observed: 6.86 ft at 10:30PM Feb 21, 2024Observed: 6.86 ft at 11:00PM Feb 21, 2024Observed: 6.85 ft at 11:30PM Feb 21, 2024Observed: 6.85 ft at 12:00AM Feb 22, 2024Observed: 6.85 ft at 12:30AM Feb 22, 2024Observed: 6.85 ft at 1:00AM Feb 22, 2024Observed: 6.84 ft at 1:30AM Feb 22, 2024Observed: 6.84 ft at 2:00AM Feb 22, 2024Observed: 6.83 ft at 2:30AM Feb 22, 2024Observed: 6.83 ft at 3:00AM Feb 22, 2024Observed: 6.83 ft at 3:30AM Feb 22, 2024Observed: 6.82 ft at 4:00AM Feb 22, 2024Observed: 6.82 ft at 4:30AM Feb 22, 2024Observed: 6.82 ft at 5:00AM Feb 22, 2024Observed: 6.82 ft at 5:30AM Feb 22, 2024Observed: 6.82 ft at 6:00AM Feb 22, 2024Observed: 6.82 ft at 6:30AM Feb 22, 2024Observed: 6.82 ft at 7:00AM Feb 22, 2024Observed: 6.82 ft at 7:30AM Feb 22, 2024Observed: 6.82 ft at 8:00AM Feb 22, 2024Observed: 6.82 ft at 8:30AM Feb 22, 2024Observed: 6.82 ft at 9:00AM Feb 22, 2024Observed: 6.82 ft at 9:30AM Feb 22, 2024Observed: 6.82 ft at 10:00AM Feb 22, 2024Observed: 6.82 ft at 10:30AM Feb 22, 2024Observed: 6.81 ft at 11:00AM Feb 22, 2024Observed: 6.81 ft at 11:30AM Feb 22, 2024Observed: 6.81 ft at 12:00PM Feb 22, 2024Observed: 6.81 ft at 12:30PM Feb 22, 2024Observed: 6.81 ft at 1:00PM Feb 22, 2024Observed: 6.81 ft at 1:30PM Feb 22, 2024Observed: 6.81 ft at 2:00PM Feb 22, 2024Observed: 6.81 ft at 2:30PM Feb 22, 2024Observed: 6.81 ft at 3:00PM Feb 22, 2024Observed: 6.81 ft at 3:30PM Feb 22, 2024Observed: 6.82 ft at 4:00PM Feb 22, 2024Observed: 6.82 ft at 4:30PM Feb 22, 2024Observed: 6.81 ft at 5:00PM Feb 22, 2024Observed: 6.8 ft at 5:30PM Feb 22, 2024Observed: 6.81 ft at 6:00PM Feb 22, 2024Observed: 6.81 ft at 6:30PM Feb 22, 2024Observed: 6.87 ft at 7:00PM Feb 22, 2024Observed: 6.93 ft at 7:30PM Feb 22, 2024Observed: 6.98 ft at 8:00PM Feb 22, 2024Observed: 7.04 ft at 8:30PM Feb 22, 2024Observed: 7.1 ft at 9:00PM Feb 22, 2024Observed: 7.15 ft at 9:30PM Feb 22, 2024Observed: 7.21 ft at 10:00PM Feb 22, 2024Observed: 7.29 ft at 10:30PM Feb 22, 2024Observed: 7.37 ft at 11:00PM Feb 22, 2024Observed: 7.47 ft at 11:30PM Feb 22, 2024Observed: 7.71 ft at 12:00AM Feb 23, 2024Observed: 8.11 ft at 12:30AM Feb 23, 2024Observed: 8.45 ft at 1:00AM Feb 23, 2024Observed: 8.7 ft at 1:30AM Feb 23, 2024Observed: 8.91 ft at 2:00AM Feb 23, 2024Observed: 9.11 ft at 2:30AM Feb 23, 2024Observed: 9.28 ft at 3:00AM Feb 23, 2024Observed: 9.38 ft at 3:30AM Feb 23, 2024Observed: 9.47 ft at 4:00AM Feb 23, 2024Observed: 9.63 ft at 4:30AM Feb 23, 2024Observed: 9.86 ft at 5:00AM Feb 23, 2024Observed: 10.12 ft at 5:30AM Feb 23, 2024Observed: 10.32 ft at 6:00AM Feb 23, 2024Observed: 10.47 ft at 6:30AM Feb 23, 2024Observed: 10.56 ft at 7:00AM Feb 23, 2024Observed: 10.63 ft at 7:30AM Feb 23, 2024Observed: 10.68 ft at 8:00AM Feb 23, 2024Observed: 10.74 ft at 8:30AM Feb 23, 2024Observed: 10.79 ft at 9:00AM Feb 23, 2024Observed: 10.83 ft at 9:30AM Feb 23, 2024Observed: 10.85 ft at 10:00AM Feb 23, 2024Observed: 10.85 ft at 10:30AM Feb 23, 2024Observed: 10.82 ft at 11:00AM Feb 23, 2024Observed: 10.79 ft at 11:30AM Feb 23, 2024Observed: 10.76 ft at 12:00PM Feb 23, 2024Observed: 10.74 ft at 12:30PM Feb 23, 2024Observed: 10.73 ft at 1:00PM Feb 23, 2024Observed: 10.75 ft at 1:30PM Feb 23, 2024Observed: 10.81 ft at 2:00PM Feb 23, 2024Observed: 10.91 ft at 2:30PM Feb 23, 2024Observed: 11.03 ft at 3:00PM Feb 23, 2024Observed: 11.17 ft at 3:30PM Feb 23, 2024Observed: 11.31 ft at 4:00PM Feb 23, 2024Observed: 11.43 ft at 4:30PM Feb 23, 2024Observed: 11.53 ft at 5:00PM Feb 23, 2024Observed: 11.58 ft at 5:30PM Feb 23, 2024Observed: 11.6 ft at 6:00PM Feb 23, 2024Highest Observation: 11.61 ft at 6:30PM Feb 23, 2024Observed: 11.59 ft at 7:00PM Feb 23, 2024Observed: 11.53 ft at 7:30PM Feb 23, 2024Observed: 11.46 ft at 8:00PM Feb 23, 2024Observed: 11.37 ft at 8:30PM Feb 23, 2024Observed: 11.28 ft at 9:00PM Feb 23, 2024Observed: 11.17 ft at 9:30PM Feb 23, 2024Observed: 11.06 ft at 10:00PM Feb 23, 2024Observed: 10.94 ft at 10:30PM Feb 23, 2024Observed: 10.83 ft at 11:00PM Feb 23, 2024Observed: 10.71 ft at 11:30PM Feb 23, 2024Observed: 10.61 ft at 12:00AM Feb 24, 2024Observed: 10.5 ft at 12:30AM Feb 24, 2024Observed: 10.4 ft at 1:00AM Feb 24, 2024Observed: 10.3 ft at 1:30AM Feb 24, 2024Observed: 10.21 ft at 2:00AM Feb 24, 2024Observed: 10.12 ft at 2:30AM Feb 24, 2024Observed: 10.04 ft at 3:00AM Feb 24, 2024Observed: 9.96 ft at 3:30AM Feb 24, 2024Observed: 9.89 ft at 4:00AM Feb 24, 2024Observed: 9.82 ft at 4:30AM Feb 24, 2024Observed: 9.75 ft at 5:00AM Feb 24, 2024Observed: 9.69 ft at 5:30AM Feb 24, 2024Observed: 9.64 ft at 6:00AM Feb 24, 2024Observed: 9.58 ft at 6:30AM Feb 24, 2024Observed: 9.53 ft at 7:00AM Feb 24, 2024Observed: 9.47 ft at 7:30AM Feb 24, 2024Observed: 9.42 ft at 8:00AM Feb 24, 2024Observed: 9.38 ft at 8:30AM Feb 24, 2024Observed: 9.33 ft at 9:00AM Feb 24, 2024Observed: 9.29 ft at 9:30AM Feb 24, 2024Observed: 9.24 ft at 10:00AM Feb 24, 2024Observed: 9.2 ft at 10:30AM Feb 24, 2024Observed: 9.16 ft at 11:00AM Feb 24, 2024Observed: 9.13 ft at 11:30AM Feb 24, 2024Observed: 9.08 ft at 12:00PM Feb 24, 2024Observed: 9.05 ft at 12:30PM Feb 24, 2024USGS--Water Resources of the United StatesPORT1(plotting HGIRG) Graph Created (1:16PM Feb 24, 2024)ObservedLatest observed value: 9.05 ft at 12:30 PM CST 24-Feb-2024. Flood Stage is 30 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Red River near Port Royal are issued as needed during times of high water, but are not routinely available.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 40
Moderate Flood Stage: 38
Flood Stage: 30
Action Stage: 25
Low Stage (in feet): -9999

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
Show More Historic Crests

(P): Preliminary values subject to further review.

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
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:13
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
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.
46 Homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct are impacted and homes on Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, and Riverhaven Dr begin to be impacted. Water reaches yards of homes on Stonegate Dr and Willow Bend Dr, and approaches Hwy 161 near the Kentucky State Line, Porters Chapel Rd near Hugh Gill Rd, and Hwy 238 just north of the bridge at Port Royal State Park which may be impassable at higher levels.
44 Water reaches homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct, and reaches yards of homes on Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, and Riverhaven Dr. Water reaches the Port Royal State Park Trail of Tears Trailhead parking area, and approaches yards of homes on Stonegate Dr and Willow Bend Dr.
42 Flood waters begin to approach homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct, and approach yards of homes on Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, and Riverhaven Dr. Roads are also impacted and impassable, including Port Royal Rd near Hwy 238 and Dunbar Cave Rd just west of Warfield Blvd.
40 Significant flooding continues to affect areas along the river, including the Red River Valley Park, Port Royal Rd near Hwy 238, Dunbar Cave Rd just west of Warfield Blvd which is covered with water, and portions of the Swan Lake Golf Course. Water reaches yards of homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct.
38 Significant flooding is impacting agricultural land, parks, and access areas along the river, including the Red River Valley Park where several campsites are flooded, and Port Royal Rd near Hwy 238 which is covered with water. Water approaches Dunbar Cave Rd just west of Warfield Blvd and may be impassable at higher levels, and water reaches low lying portions of the Swan Lake Golf Course.
36 Flooding continues to affect agricultural land, parks, and access areas along the river, including the Red River Valley Park where water reaches campsites and evacuations may be needed, and Port Royal Rd near Hwy 238 which is covered with water. Water approaches Dunbar Cave Rd just west of Warfield Blvd and may be impassable at higher levels.
34 Flooding continues to affect agricultural land and adjacent areas along the river, including the Porter Chapel Public Access Area, and the Red River Valley Park where water approaches campsites and evacuations may be needed for higher levels. Water approaches Port Royal Rd near Hwy 238 which may be impassable at higher levels.
32 Flood waters continue to impact agricultural land and adjacent areas along the river from the Kentucky State Line through Adams, past Port Royal State Park, to Clarksville. This includes the Red River Valley Park where water covers most of the parking area, the Porters Chapel Public Access area, The River Club golf course which is mostly covered, and portions of the Clarksville Country Club.
30 Low lying agricultural areas along the Red River from the Kentucky State Line through Adams, past Port Royal State Park, and down to Clarksville begin to flood. This includes the Red River Valley Park where water is up to the parking area, the Porters Chapel Public Access area, The River Club golf course, and portions of the Clarksville Country Club.
28 Portions of the Red River Valley Park and canoe launch, and the Porters Chapel Public Access parking area begin to be inundated. Water continues to inundate agricultural areas along the river, the Port Royal State Park public access area, and the golf course at The River Club. Portions of the golf course at the Clarksville Country Club begin to be inundated.
26 Low lying agricultural areas along the river begin to be inundated, and water continues to affect the Port Royal State Park public access area and parking lot, as well as portions of the golf course at The River Club.
24 The Port Royal State Park public access area and parking lot begin to be inundated, and water begins to inundate low lying portions of the golf course at The River Club.
Photos
(1) Gauge House
(2) Port Royal, Red River Bridge
(3) Downstream View
(4) Upstream View of Red River
About This Location Collapse

Latitude: 36.553889° N, Longitude: 87.141944° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 30 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 376.25 ft 406.25 ft  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

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.

Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
Nashville Weather Forecast Office
500 Weather Station Road
Old Hickory, TN 37138
(615) 754-4633
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Page last modified: 2-Nov-2020 7:29 PM
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