Skip Navigation Link  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

Hydrograph River at a Glance Download
Arkansas River at Ozark L/D Tailwater Tailwater (ft)Flow (kcfs)Observed: 358.25 ft at 11:00AM May 21, 2015Observed: 358.2 ft at 12:00PM May 21, 2015Observed: 358.15 ft at 1:00PM May 21, 2015Observed: 358.11 ft at 2:00PM May 21, 2015Observed: 358.08 ft at 3:00PM May 21, 2015Observed: 358.05 ft at 4:00PM May 21, 2015Observed: 358.02 ft at 5:00PM May 21, 2015Observed: 357.99 ft at 6:00PM May 21, 2015Observed: 357.95 ft at 7:00PM May 21, 2015Observed: 357.91 ft at 8:00PM May 21, 2015Observed: 357.87 ft at 9:00PM May 21, 2015Observed: 357.83 ft at 10:00PM May 21, 2015Observed: 357.79 ft at 11:00PM May 21, 2015Observed: 357.64 ft at 12:00AM May 22, 2015Observed: 357.49 ft at 1:00AM May 22, 2015Observed: 357.37 ft at 2:00AM May 22, 2015Observed: 357.26 ft at 3:00AM May 22, 2015Observed: 357.17 ft at 4:00AM May 22, 2015Observed: 357.09 ft at 5:00AM May 22, 2015Observed: 357.03 ft at 6:00AM May 22, 2015Observed: 356.97 ft at 7:00AM May 22, 2015Observed: 356.92 ft at 8:00AM May 22, 2015Observed: 356.87 ft at 9:00AM May 22, 2015Observed: 356.82 ft at 10:00AM May 22, 2015Observed: 356.68 ft at 11:00AM May 22, 2015Observed: 356.54 ft at 12:00PM May 22, 2015Observed: 356.43 ft at 1:00PM May 22, 2015Observed: 356.33 ft at 2:00PM May 22, 2015Observed: 356.25 ft at 3:00PM May 22, 2015Observed: 356.2 ft at 4:00PM May 22, 2015Observed: 356.14 ft at 5:00PM May 22, 2015Observed: 356.1 ft at 6:00PM May 22, 2015Observed: 356.07 ft at 7:00PM May 22, 2015Observed: 356.03 ft at 8:00PM May 22, 2015Observed: 355.99 ft at 9:00PM May 22, 2015Observed: 355.96 ft at 10:00PM May 22, 2015Observed: 355.94 ft at 11:00PM May 22, 2015Observed: 355.9 ft at 12:00AM May 23, 2015Observed: 355.78 ft at 1:00AM May 23, 2015Observed: 355.65 ft at 2:00AM May 23, 2015Observed: 355.53 ft at 3:00AM May 23, 2015Observed: 355.45 ft at 4:00AM May 23, 2015Observed: 355.38 ft at 5:00AM May 23, 2015Observed: 355.46 ft at 6:00AM May 23, 2015Observed: 355.49 ft at 7:00AM May 23, 2015Observed: 355.41 ft at 8:00AM May 23, 2015Observed: 355.36 ft at 9:00AM May 23, 2015Observed: 355.34 ft at 10:00AM May 23, 2015Observed: 355.31 ft at 11:00AM May 23, 2015Observed: 355.29 ft at 12:00PM May 23, 2015Observed: 355.28 ft at 1:00PM May 23, 2015Observed: 355.27 ft at 2:00PM May 23, 2015Observed: 355.27 ft at 3:00PM May 23, 2015Observed: 355.26 ft at 4:00PM May 23, 2015Observed: 355.25 ft at 5:00PM May 23, 2015Observed: 355.23 ft at 6:00PM May 23, 2015Observed: 355.23 ft at 7:00PM May 23, 2015Observed: 355.21 ft at 8:00PM May 23, 2015Observed: 355.2 ft at 9:00PM May 23, 2015Observed: 355.19 ft at 10:00PM May 23, 2015Observed: 355.17 ft at 11:00PM May 23, 2015Observed: 355.16 ft at 12:00AM May 24, 2015Observed: 355.14 ft at 1:00AM May 24, 2015Observed: 355.13 ft at 2:00AM May 24, 2015Observed: 355.12 ft at 3:00AM May 24, 2015Observed: 355.11 ft at 4:00AM May 24, 2015Observed: 355.09 ft at 5:00AM May 24, 2015Observed: 354.92 ft at 9:00AM May 24, 2015Observed: 354.89 ft at 10:00AM May 24, 2015Observed: 354.91 ft at 11:00AM May 24, 2015Observed: 354.94 ft at 12:00PM May 24, 2015Observed: 355.12 ft at 1:00PM May 24, 2015Observed: 355.29 ft at 2:00PM May 24, 2015Observed: 355.44 ft at 3:00PM May 24, 2015Observed: 355.8 ft at 4:00PM May 24, 2015Observed: 356 ft at 5:00PM May 24, 2015Observed: 356.18 ft at 6:00PM May 24, 2015Observed: 356.4 ft at 7:00PM May 24, 2015Observed: 356.62 ft at 8:00PM May 24, 2015Observed: 356.84 ft at 9:00PM May 24, 2015Observed: 357.08 ft at 10:00PM May 24, 2015Observed: 357.41 ft at 11:00PM May 24, 2015Observed: 357.72 ft at 12:00AM May 25, 2015Observed: 358.02 ft at 1:00AM May 25, 2015Observed: 358.29 ft at 2:00AM May 25, 2015Observed: 358.55 ft at 3:00AM May 25, 2015Observed: 358.78 ft at 4:00AM May 25, 2015Observed: 359 ft at 5:00AM May 25, 2015Observed: 359.18 ft at 6:00AM May 25, 2015Observed: 359.37 ft at 7:00AM May 25, 2015Observed: 359.55 ft at 8:00AM May 25, 2015Observed: 359.71 ft at 9:00AM May 25, 2015Highest Observation: 359.88 ft at 10:00AM May 25, 2015Forecast: 360.6 ft 1:00PM May 25, 2015Forecast: 362 ft 7:00PM May 25, 2015Forecast: 363.4 ft 1:00AM May 26, 2015Forecast: 364.8 ft 7:00AM May 26, 2015Forecast: 365.6 ft 1:00PM May 26, 2015Highest Forecast: 365.8 ft 7:00PM May 26, 2015Highest Forecast: 365.8 ft 1:00AM May 27, 2015Forecast: 365.5 ft 7:00AM May 27, 2015Forecast: 365.2 ft 1:00PM May 27, 2015Forecast: 364.8 ft 7:00PM May 27, 2015Forecast: 364.4 ft 1:00AM May 28, 2015Forecast: 364.1 ft 7:00AM May 28, 2015Forecast: 363.8 ft 1:00PM May 28, 2015Forecast: 363.5 ft 7:00PM May 28, 2015Forecast: 363.3 ft 1:00AM May 29, 2015Forecast: 363.1 ft 7:00AM May 29, 2015Forecast: 362.8 ft 1:00PM May 29, 2015Forecast: 362.8 ft 7:00PM May 29, 2015Forecast: 362.5 ft 1:00AM May 30, 2015Forecast: 362.3 ft 7:00AM May 30, 2015Relevant - Ready - Responsive - ReliableOZGA4(plotting HTIRG) Graph Created (10:35AM May 25, 2015)ObservedForecast (issued 8:34AM May 25)Latest observed value: 359.88 ft at 10:00 AM CDT 25-May-2015. Flood Stage is 357 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Arkansas River at Ozark L/D Tailwater are issued routinely year-round.

Return to Area Map
Upstream Gauge - at Van Buren Upstream Gauge Downstream Gauge Downstream Gauge - at Dardanelle
Flood Categories (in feet)
Major Flood Stage: 365
Moderate Flood Stage: 363
Flood Stage: 357
Action Stage: 355.5
Low Stage (in feet): 0

Historic Crests
(1) 375.50 ft on 05/13/1943
(2) 370.00 ft on 05/06/1990
(3) 368.50 ft on 10/09/1986
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 363.03 ft on 04/26/2011
(2) 358.00 ft on 05/07/2009
(3) 363.20 ft on 04/11/2008
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

Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
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
377 this is the critical stage for the McLean Bottom Levee. This is an extremely dangerous and life threatening situation.
373 this is the critical stage for the Lower Hartman Bottom Levee. This is an extremely dangerous and life threatening situation.
370 this is the highest stage experienced since the completion of the navigation system in 1969. This is an extremely dangerous and life threatening situation.
367 Highways 309 and 288 northwest of Paris in Logan County are inundated by backwater up Six Mile Creek. Backwater flooding will spread westward into Franklin County at higher stages. This is an extremely dangerous and life threatening situation.
365 County Roads 228 and 4 south of Coal Hill in Johnson County are inundated. Roads northeast of Scranton in Logan County are inundated by backwater up Cane Creek. This is an extremely dangerous and life threatening situation.
363 patrolling of McLean Bottom Levee in Logan County and Lower Hartman Levee in Johnson County begins.
360 flooding spreads over more than 4,000 acres in Franklin and Logan Counties. Numerous gas fields are flooded. Some agricultural lands in Johnson County also are flooded.
357 flooding affects agricultural use lands along the river downstream of the lock and dam in Franklin County. Gas fields are also subject to flooding downstream. Equipment and livestock should be moved to higher ground.
(1) Ozark Lock & Dam
About This Location Collapse

Latitude: 35.472500° N, Longitude: 93.812778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 357 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 0 ft 357 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:

Additional Information Collapse
River flow forecast can be found at the following link:
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
Little Rock Weather Forecast Office
8400 Remount Road
North Little Rock, AR 72118
(501) 834-0308
Ask Questions/Webmaster
Page last modified: 12-Feb-2015 9:33 PM
Privacy Policy
About Us
Career Opportunities