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Hydrograph River at a Glance Download
Illinois River (AR OK) near Tahlequah Stage (ft)Flow (kcfs)Highest Observation: 5.54 ft at 2:00AM Apr 14, 2024Observed: 5.53 ft at 2:30AM Apr 14, 2024Observed: 5.53 ft at 3:00AM Apr 14, 2024Observed: 5.52 ft at 3:30AM Apr 14, 2024Observed: 5.51 ft at 4:00AM Apr 14, 2024Observed: 5.51 ft at 4:30AM Apr 14, 2024Observed: 5.49 ft at 5:00AM Apr 14, 2024Observed: 5.5 ft at 5:30AM Apr 14, 2024Observed: 5.51 ft at 6:00AM Apr 14, 2024Observed: 5.49 ft at 6:30AM Apr 14, 2024Observed: 5.5 ft at 7:00AM Apr 14, 2024Observed: 5.49 ft at 7:30AM Apr 14, 2024Observed: 5.49 ft at 8:00AM Apr 14, 2024Observed: 5.48 ft at 8:30AM Apr 14, 2024Observed: 5.48 ft at 9:00AM Apr 14, 2024Observed: 5.47 ft at 9:30AM Apr 14, 2024Observed: 5.47 ft at 10:00AM Apr 14, 2024Observed: 5.47 ft at 10:30AM Apr 14, 2024Observed: 5.45 ft at 11:00AM Apr 14, 2024Observed: 5.46 ft at 11:30AM Apr 14, 2024Observed: 5.45 ft at 12:00PM Apr 14, 2024Observed: 5.46 ft at 12:30PM Apr 14, 2024Observed: 5.45 ft at 1:00PM Apr 14, 2024Observed: 5.45 ft at 1:30PM Apr 14, 2024Observed: 5.44 ft at 2:00PM Apr 14, 2024Observed: 5.44 ft at 2:30PM Apr 14, 2024Observed: 5.43 ft at 3:00PM Apr 14, 2024Observed: 5.43 ft at 3:30PM Apr 14, 2024Observed: 5.42 ft at 4:00PM Apr 14, 2024Observed: 5.44 ft at 4:30PM Apr 14, 2024Observed: 5.43 ft at 5:00PM Apr 14, 2024Observed: 5.41 ft at 5:30PM Apr 14, 2024Observed: 5.41 ft at 6:00PM Apr 14, 2024Observed: 5.42 ft at 6:30PM Apr 14, 2024Observed: 5.41 ft at 7:00PM Apr 14, 2024Observed: 5.42 ft at 7:30PM Apr 14, 2024Observed: 5.4 ft at 8:00PM Apr 14, 2024Observed: 5.4 ft at 8:30PM Apr 14, 2024Observed: 5.41 ft at 9:00PM Apr 14, 2024Observed: 5.41 ft at 9:30PM Apr 14, 2024Observed: 5.4 ft at 10:00PM Apr 14, 2024Observed: 5.39 ft at 10:30PM Apr 14, 2024Observed: 5.39 ft at 11:00PM Apr 14, 2024Observed: 5.39 ft at 11:30PM Apr 14, 2024Observed: 5.38 ft at 12:00AM Apr 15, 2024Observed: 5.38 ft at 12:30AM Apr 15, 2024Observed: 5.38 ft at 1:00AM Apr 15, 2024Observed: 5.38 ft at 1:30AM Apr 15, 2024Observed: 5.38 ft at 2:00AM Apr 15, 2024Observed: 5.38 ft at 2:30AM Apr 15, 2024Observed: 5.38 ft at 3:00AM Apr 15, 2024Observed: 5.37 ft at 3:30AM Apr 15, 2024Observed: 5.37 ft at 4:00AM Apr 15, 2024Observed: 5.36 ft at 4:30AM Apr 15, 2024Observed: 5.37 ft at 5:00AM Apr 15, 2024Observed: 5.36 ft at 5:30AM Apr 15, 2024Observed: 5.36 ft at 6:00AM Apr 15, 2024Observed: 5.36 ft at 6:30AM Apr 15, 2024Observed: 5.35 ft at 7:00AM Apr 15, 2024Observed: 5.35 ft at 7:30AM Apr 15, 2024Observed: 5.35 ft at 8:00AM Apr 15, 2024Observed: 5.35 ft at 8:30AM Apr 15, 2024Observed: 5.33 ft at 9:00AM Apr 15, 2024Observed: 5.34 ft at 9:30AM Apr 15, 2024Observed: 5.33 ft at 10:00AM Apr 15, 2024Observed: 5.34 ft at 10:30AM Apr 15, 2024Observed: 5.34 ft at 11:00AM Apr 15, 2024Observed: 5.33 ft at 11:30AM Apr 15, 2024Observed: 5.32 ft at 12:00PM Apr 15, 2024Observed: 5.33 ft at 12:30PM Apr 15, 2024Observed: 5.33 ft at 1:00PM Apr 15, 2024Observed: 5.31 ft at 1:30PM Apr 15, 2024Observed: 5.32 ft at 2:00PM Apr 15, 2024Observed: 5.32 ft at 2:30PM Apr 15, 2024Observed: 5.32 ft at 3:00PM Apr 15, 2024Observed: 5.32 ft at 3:30PM Apr 15, 2024Observed: 5.31 ft at 4:00PM Apr 15, 2024Observed: 5.3 ft at 4:30PM Apr 15, 2024Observed: 5.3 ft at 5:00PM Apr 15, 2024Observed: 5.3 ft at 5:30PM Apr 15, 2024Observed: 5.29 ft at 6:00PM Apr 15, 2024Observed: 5.3 ft at 6:30PM Apr 15, 2024Observed: 5.3 ft at 7:00PM Apr 15, 2024Observed: 5.3 ft at 7:30PM Apr 15, 2024Observed: 5.29 ft at 8:00PM Apr 15, 2024Observed: 5.28 ft at 8:30PM Apr 15, 2024Observed: 5.28 ft at 9:00PM Apr 15, 2024Observed: 5.29 ft at 9:30PM Apr 15, 2024Observed: 5.28 ft at 10:00PM Apr 15, 2024Observed: 5.27 ft at 10:30PM Apr 15, 2024Observed: 5.27 ft at 11:00PM Apr 15, 2024Observed: 5.27 ft at 11:30PM Apr 15, 2024Observed: 5.27 ft at 12:00AM Apr 16, 2024Observed: 5.27 ft at 12:30AM Apr 16, 2024Observed: 5.27 ft at 1:00AM Apr 16, 2024Observed: 5.27 ft at 1:30AM Apr 16, 2024Observed: 5.26 ft at 2:00AM Apr 16, 2024Observed: 5.27 ft at 2:30AM Apr 16, 2024Observed: 5.26 ft at 3:00AM Apr 16, 2024Observed: 5.27 ft at 3:30AM Apr 16, 2024Observed: 5.26 ft at 4:00AM Apr 16, 2024Observed: 5.26 ft at 4:30AM Apr 16, 2024Observed: 5.25 ft at 5:00AM Apr 16, 2024Observed: 5.25 ft at 5:30AM Apr 16, 2024Observed: 5.24 ft at 6:00AM Apr 16, 2024Observed: 5.24 ft at 6:30AM Apr 16, 2024Observed: 5.24 ft at 7:00AM Apr 16, 2024Observed: 5.24 ft at 7:30AM Apr 16, 2024Observed: 5.23 ft at 8:00AM Apr 16, 2024Observed: 5.24 ft at 8:30AM Apr 16, 2024Observed: 5.23 ft at 9:00AM Apr 16, 2024Observed: 5.21 ft at 9:30AM Apr 16, 2024Observed: 5.23 ft at 10:00AM Apr 16, 2024Observed: 5.23 ft at 10:30AM Apr 16, 2024Observed: 5.21 ft at 11:00AM Apr 16, 2024Observed: 5.22 ft at 11:30AM Apr 16, 2024Observed: 5.2 ft at 12:00PM Apr 16, 2024Observed: 5.21 ft at 12:30PM Apr 16, 2024Observed: 5.21 ft at 1:00PM Apr 16, 2024Observed: 5.21 ft at 1:30PM Apr 16, 2024Observed: 5.19 ft at 2:00PM Apr 16, 2024Observed: 5.2 ft at 2:30PM Apr 16, 2024Observed: 5.2 ft at 3:00PM Apr 16, 2024Observed: 5.2 ft at 3:30PM Apr 16, 2024Observed: 5.19 ft at 4:00PM Apr 16, 2024Observed: 5.18 ft at 4:30PM Apr 16, 2024Observed: 5.2 ft at 5:00PM Apr 16, 2024Observed: 5.18 ft at 5:30PM Apr 16, 2024Observed: 5.2 ft at 6:00PM Apr 16, 2024Observed: 5.19 ft at 6:30PM Apr 16, 2024Observed: 5.2 ft at 7:00PM Apr 16, 2024Observed: 5.2 ft at 7:30PM Apr 16, 2024Observed: 5.19 ft at 8:00PM Apr 16, 2024Observed: 5.2 ft at 8:30PM Apr 16, 2024Observed: 5.21 ft at 9:00PM Apr 16, 2024Observed: 5.2 ft at 9:30PM Apr 16, 2024Observed: 5.2 ft at 10:00PM Apr 16, 2024Observed: 5.19 ft at 10:30PM Apr 16, 2024Observed: 5.19 ft at 11:00PM Apr 16, 2024Observed: 5.19 ft at 11:30PM Apr 16, 2024Observed: 5.19 ft at 12:00AM Apr 17, 2024Observed: 5.19 ft at 12:30AM Apr 17, 2024Observed: 5.18 ft at 1:00AM Apr 17, 2024Observed: 5.19 ft at 1:30AM Apr 17, 2024Observed: 5.2 ft at 2:00AM Apr 17, 2024Observed: 5.18 ft at 2:30AM Apr 17, 2024Observed: 5.19 ft at 3:00AM Apr 17, 2024Observed: 5.18 ft at 3:30AM Apr 17, 2024Observed: 5.19 ft at 4:00AM Apr 17, 2024Observed: 5.18 ft at 4:30AM Apr 17, 2024Observed: 5.18 ft at 5:00AM Apr 17, 2024Observed: 5.19 ft at 5:30AM Apr 17, 2024Observed: 5.18 ft at 6:00AM Apr 17, 2024Observed: 5.18 ft at 6:30AM Apr 17, 2024Observed: 5.18 ft at 7:00AM Apr 17, 2024Observed: 5.18 ft at 7:30AM Apr 17, 2024Observed: 5.16 ft at 8:00AM Apr 17, 2024Observed: 5.16 ft at 8:30AM Apr 17, 2024Observed: 5.16 ft at 9:00AM Apr 17, 2024Observed: 5.16 ft at 9:30AM Apr 17, 2024Observed: 5.14 ft at 10:00AM Apr 17, 2024Observed: 5.15 ft at 10:30AM Apr 17, 2024Observed: 5.14 ft at 11:00AM Apr 17, 2024Observed: 5.13 ft at 11:30AM Apr 17, 2024Observed: 5.12 ft at 1:00PM Apr 17, 2024Observed: 5.12 ft at 1:30PM Apr 17, 2024Observed: 5.11 ft at 2:00PM Apr 17, 2024Observed: 5.12 ft at 2:30PM Apr 17, 2024Observed: 5.12 ft at 3:00PM Apr 17, 2024Observed: 5.12 ft at 3:30PM Apr 17, 2024Observed: 5.13 ft at 4:00PM Apr 17, 2024Observed: 5.14 ft at 4:30PM Apr 17, 2024Observed: 5.15 ft at 5:00PM Apr 17, 2024Observed: 5.14 ft at 5:30PM Apr 17, 2024Observed: 5.17 ft at 6:00PM Apr 17, 2024Observed: 5.16 ft at 6:30PM Apr 17, 2024Observed: 5.18 ft at 7:00PM Apr 17, 2024Observed: 5.19 ft at 7:30PM Apr 17, 2024Observed: 5.18 ft at 8:00PM Apr 17, 2024Observed: 5.2 ft at 8:30PM Apr 17, 2024Observed: 5.19 ft at 9:00PM Apr 17, 2024Observed: 5.19 ft at 9:30PM Apr 17, 2024Observed: 5.2 ft at 10:00PM Apr 17, 2024Observed: 5.19 ft at 10:30PM Apr 17, 2024Observed: 5.18 ft at 11:00PM Apr 17, 2024Observed: 5.19 ft at 11:30PM Apr 17, 2024Observed: 5.18 ft at 12:00AM Apr 18, 2024Observed: 5.19 ft at 12:30AM Apr 18, 2024Observed: 5.18 ft at 1:00AM Apr 18, 2024Observed: 5.18 ft at 1:30AM Apr 18, 2024Observed: 5.18 ft at 2:00AM Apr 18, 2024Observed: 5.18 ft at 2:30AM Apr 18, 2024Observed: 5.16 ft at 3:00AM Apr 18, 2024Observed: 5.17 ft at 3:30AM Apr 18, 2024Observed: 5.16 ft at 4:00AM Apr 18, 2024Observed: 5.16 ft at 4:30AM Apr 18, 2024Observed: 5.17 ft at 5:00AM Apr 18, 2024Observed: 5.16 ft at 5:30AM Apr 18, 2024Observed: 5.16 ft at 6:00AM Apr 18, 2024Observed: 5.15 ft at 6:30AM Apr 18, 2024Observed: 5.15 ft at 7:00AM Apr 18, 2024Observed: 5.15 ft at 7:30AM Apr 18, 2024Observed: 5.14 ft at 8:00AM Apr 18, 2024Observed: 5.14 ft at 8:30AM Apr 18, 2024Observed: 5.15 ft at 9:00AM Apr 18, 2024Observed: 5.14 ft at 9:30AM Apr 18, 2024Observed: 5.11 ft at 10:00AM Apr 18, 2024Observed: 5.11 ft at 10:30AM Apr 18, 2024Observed: 5.12 ft at 11:00AM Apr 18, 2024Observed: 5.12 ft at 11:30AM Apr 18, 2024Observed: 5.11 ft at 12:00PM Apr 18, 2024Observed: 5.11 ft at 12:30PM Apr 18, 2024Observed: 5.09 ft at 1:00PM Apr 18, 2024Observed: 5.08 ft at 1:30PM Apr 18, 2024Observed: 5.09 ft at 2:00PM Apr 18, 2024Observed: 5.09 ft at 2:30PM Apr 18, 2024Observed: 5.07 ft at 3:00PM Apr 18, 2024Observed: 5.07 ft at 3:30PM Apr 18, 2024Observed: 5.08 ft at 4:00PM Apr 18, 2024Observed: 5.08 ft at 4:30PM Apr 18, 2024Observed: 5.08 ft at 5:00PM Apr 18, 2024Observed: 5.08 ft at 5:30PM Apr 18, 2024Observed: 5.09 ft at 6:00PM Apr 18, 2024Observed: 5.1 ft at 6:30PM Apr 18, 2024Observed: 5.1 ft at 7:00PM Apr 18, 2024Observed: 5.12 ft at 7:30PM Apr 18, 2024Observed: 5.12 ft at 8:00PM Apr 18, 2024Observed: 5.14 ft at 8:30PM Apr 18, 2024Observed: 5.13 ft at 9:00PM Apr 18, 2024Observed: 5.14 ft at 9:30PM Apr 18, 2024Observed: 5.14 ft at 10:00PM Apr 18, 2024Observed: 5.13 ft at 10:30PM Apr 18, 2024Observed: 5.14 ft at 11:00PM Apr 18, 2024Observed: 5.13 ft at 11:30PM Apr 18, 2024Observed: 5.14 ft at 12:00AM Apr 19, 2024Observed: 5.13 ft at 12:30AM Apr 19, 2024Highest Forecast: 5.2 ft 7:00AM Apr 19, 2024Highest Forecast: 5.2 ft 1:00PM Apr 19, 2024Forecast: 5.1 ft 7:00PM Apr 19, 2024Forecast: 5.1 ft 1:00AM Apr 20, 2024Forecast: 5.1 ft 7:00AM Apr 20, 2024Forecast: 5.1 ft 1:00PM Apr 20, 2024Forecast: 5.1 ft 7:00PM Apr 20, 2024Forecast: 5.1 ft 1:00AM Apr 21, 2024Forecast: 5.1 ft 7:00AM Apr 21, 2024Forecast: 5.1 ft 1:00PM Apr 21, 2024Forecast: 5.1 ft 7:00PM Apr 21, 2024Forecast: 5.1 ft 1:00AM Apr 22, 2024Forecast: 5.1 ft 7:00AM Apr 22, 2024Forecast: 5.1 ft 1:00PM Apr 22, 2024Forecast: 5 ft 7:00PM Apr 22, 2024Forecast: 5 ft 1:00AM Apr 23, 2024Forecast: 5 ft 7:00AM Apr 23, 2024USGS--Water Resources of the United StatesTALO2(plotting HGIRG) Graph Created (1:38AM Apr 19, 2024)ObservedForecast (issued 8:17AM Apr 18)Latest observed value: 5.13 ft at 12:30 AM CDT 19-Apr-2024. Flood Stage is 11 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Illinois River (AR OK) near Tahlequah are issued routinely year-round.

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Upstream Gauge - near Watts Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 14
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 30.69 ft on 12/28/2015
(2) 29.29 ft on 04/30/2017
(3) 27.94 ft on 05/10/1950
(4) 27.53 ft on 05/06/2022
(5) 26.00 ft on 01/01/1916
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.75 ft on 03/25/2023
(2) 9.45 ft on 03/09/2023
(3) 12.87 ft on 03/04/2023
(4) 11.18 ft on 02/09/2023 (P)
(5) 9.17 ft on 06/11/2022
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:14
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
31 devastating flooding occurs along the Illinois River from near Hanging Rock to the headwaters of Lake Tenkiller. Impacts will be similar to the record flood of 30.7 feet in December 2015. State Highway 10 is closed northeast of its intersection with Highway 51. Many cabins and parks are severely flooded or are totally isolated for an extended duration. This is a very dangerous and life threatening situation.
29 devastating flooding occurs along the Illinois River from near Hanging Rock to the headwaters of Lake Tenkiller. State Highway 10 is closed northeast of its intersection with Highway 51. Many cabins and parks are severely flooded or are totally isolated for an extended duration. This is a very dangerous and life threatening situation. This will approach the record flood of 30.7 feet in December 2015.
27 devastating flooding occurs along the Illinois River from near Hanging Rock to the headwaters of Lake Tenkiller. State Highway 10 is closed northeast of its intersection with Highway 51. Many cabins and parks are severely flooded or are totally isolated for an extended duration. This is a very dangerous and life threatening situation. This will exceed the April 2011 flood of 26 feet and approach the May 1950 flood of 27.9 feet.
25 devastating flooding occurs along the Illinois River from near Hanging Rock to the headwaters of Lake Tenkiller. State Highway 10 is closed northeast of its intersection with Highway 51. Many cabins and parks are severely flooded or are totally isolated for an extended duration. This is a very dangerous and life threatening situation. This will approach the April 2011 flood, which reached 26 feet.
23 extremely severe flooding occurs along the Illinois River from near Hanging Rock to the headwaters of Lake Tenkiller. State Highway 10 is closed northeast of its intersection with Highway 62. Several cabins and parks are severely flooded and many others are isolated for an extended duration. This is a very dangerous and life threatening situation.
21 very severe flooding occurs from near Hanging Rock downstream towards Tahlequah. State Highway 10 is closed between Hanging Rock and No Head Hollow north of the Highway 10 intersection with Highway 62. Several cabins and parks are severely flooded and many others are isolated. This is a very dangerous and life threatening situation.
19 severe flooding occurs from near Hanging Rock downstream towards Tahlequah. State Highway 10 near Hanging Rock and near No Head Hollow north of the intersection with Highway 62 is impassable. Some cabins and parks are severely flooded. This is a very dangerous situation.
18 severe flooding occurs from near Hanging Rock downstream towards Tahlequah. Highway 10 near Hanging Rock northeast of Tahlequah is impassable. Some cabins and parks are severely flooded. This is a very dangerous situation. Extreme turbulence makes the river too hazardous for floating.
17 severe flooding occurs from Hanging Rock downstream towards Tahlequah. Access roads east of Combs Bridge near Eagles Bluff are impassable. Some cabins and parks may be flooded to a depth of a couple of feet. Extreme turbulence makes the river too hazardous for floating.
15 moderate flooding occurs from Hanging Rock downstream towards Tahlequah. Access roads east of the Combs Bridge near Eagles Bluff are impassable. Some cabins and parks may begin to flood. Extreme turbulence makes the river too hazardous for floating.
14 moderate flooding occurs from Hanging Rock downstream towards Tahlequah. Access roads east of the Combs Bridge near Eagles Bluff will be impassable. Extreme turbulence makes the river too hazardous for floating.
13 minor flooding occurs from near Hanging Rock downstream towards Tahlequah. Access roads east of the Combs Bridge near Eagles Bluff may be threatened. Extreme turbulence makes the river too hazardous for floating.
12 minor flooding occurs from near Hanging Rock downstream towards Tahlequah. Extreme turbulence makes the river too hazardous for floating.
11 minor flooding occurs from near Hanging Rock downstream towards Tahlequah. Floating the river is too hazardous due to strong turbulence.
9 no flooding occurs but all recreational floating along the Illinois River ceases at and above 9.5 feet.
Photos
(1) upstream
(2) downstream
About This Location Collapse

Latitude: 35.925833° N, Longitude: 94.922500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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 665.08 ft 676.08 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 664.14 ft 675.14 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
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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.
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