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Hydrograph River at a Glance Download
Ohio River at Willow Island Lock Tailwater (ft)Observed: 16.16 ft at 3:00PM Mar 19, 2023Observed: 16.09 ft at 3:15PM Mar 19, 2023Observed: 16.11 ft at 3:30PM Mar 19, 2023Observed: 16.11 ft at 3:45PM Mar 19, 2023Observed: 16.09 ft at 4:00PM Mar 19, 2023Observed: 16.09 ft at 4:15PM Mar 19, 2023Observed: 16.3 ft at 4:30PM Mar 19, 2023Observed: 16.14 ft at 4:45PM Mar 19, 2023Observed: 16.28 ft at 5:00PM Mar 19, 2023Observed: 16.17 ft at 5:15PM Mar 19, 2023Observed: 16.13 ft at 5:45PM Mar 19, 2023Observed: 16.14 ft at 6:00PM Mar 19, 2023Observed: 16.15 ft at 6:15PM Mar 19, 2023Observed: 16.18 ft at 6:30PM Mar 19, 2023Observed: 16.11 ft at 6:45PM Mar 19, 2023Observed: 16.17 ft at 7:00PM Mar 19, 2023Observed: 16.14 ft at 7:15PM Mar 19, 2023Observed: 16.16 ft at 7:30PM Mar 19, 2023Observed: 16.16 ft at 7:45PM Mar 19, 2023Observed: 16.1 ft at 8:00PM Mar 19, 2023Observed: 16.49 ft at 8:15PM Mar 19, 2023Observed: 16.23 ft at 8:30PM Mar 19, 2023Observed: 16.15 ft at 8:45PM Mar 19, 2023Observed: 16.21 ft at 9:00PM Mar 19, 2023Observed: 16.13 ft at 9:15PM Mar 19, 2023Observed: 16.16 ft at 9:30PM Mar 19, 2023Observed: 16.16 ft at 9:45PM Mar 19, 2023Observed: 16.16 ft at 10:00PM Mar 19, 2023Observed: 16.18 ft at 10:15PM Mar 19, 2023Observed: 16.19 ft at 10:30PM Mar 19, 2023Observed: 16.18 ft at 10:45PM Mar 19, 2023Observed: 16.3 ft at 11:00PM Mar 19, 2023Observed: 16.29 ft at 11:15PM Mar 19, 2023Observed: 16.28 ft at 11:30PM Mar 19, 2023Observed: 16.3 ft at 11:45PM Mar 19, 2023Observed: 16.31 ft at 12:00AM Mar 20, 2023Observed: 16.32 ft at 12:15AM Mar 20, 2023Observed: 16.32 ft at 12:30AM Mar 20, 2023Observed: 16.36 ft at 12:45AM Mar 20, 2023Observed: 16.48 ft at 1:00AM Mar 20, 2023Observed: 16.45 ft at 1:15AM Mar 20, 2023Observed: 16.47 ft at 1:30AM Mar 20, 2023Observed: 16.52 ft at 1:45AM Mar 20, 2023Observed: 16.53 ft at 2:00AM Mar 20, 2023Observed: 16.56 ft at 2:15AM Mar 20, 2023Observed: 16.55 ft at 2:30AM Mar 20, 2023Observed: 16.79 ft at 2:45AM Mar 20, 2023Observed: 16.68 ft at 3:00AM Mar 20, 2023Observed: 16.55 ft at 3:15AM Mar 20, 2023Observed: 16.63 ft at 3:30AM Mar 20, 2023Observed: 16.58 ft at 3:45AM Mar 20, 2023Observed: 16.65 ft at 4:00AM Mar 20, 2023Observed: 16.75 ft at 5:15AM Mar 20, 2023Observed: 16.78 ft at 5:30AM Mar 20, 2023Observed: 16.77 ft at 5:45AM Mar 20, 2023Observed: 16.79 ft at 6:00AM Mar 20, 2023Observed: 16.79 ft at 6:15AM Mar 20, 2023Observed: 16.89 ft at 6:30AM Mar 20, 2023Observed: 16.8 ft at 6:45AM Mar 20, 2023Observed: 16.85 ft at 7:00AM Mar 20, 2023Observed: 16.8 ft at 7:15AM Mar 20, 2023Observed: 16.86 ft at 7:30AM Mar 20, 2023Observed: 16.87 ft at 7:45AM Mar 20, 2023Observed: 16.84 ft at 8:00AM Mar 20, 2023Observed: 16.85 ft at 8:15AM Mar 20, 2023Observed: 16.85 ft at 8:30AM Mar 20, 2023Highest Observation: 17.1 ft at 8:45AM Mar 20, 2023Observed: 16.78 ft at 9:00AM Mar 20, 2023Observed: 16.57 ft at 9:15AM Mar 20, 2023Observed: 16.47 ft at 9:30AM Mar 20, 2023Observed: 16.49 ft at 9:45AM Mar 20, 2023Observed: 16.4 ft at 10:00AM Mar 20, 2023Observed: 16.3 ft at 10:15AM Mar 20, 2023Observed: 16.29 ft at 10:30AM Mar 20, 2023Observed: 16.28 ft at 10:45AM Mar 20, 2023Observed: 16.3 ft at 11:00AM Mar 20, 2023Observed: 16.33 ft at 11:15AM Mar 20, 2023Observed: 16.23 ft at 11:45AM Mar 20, 2023Observed: 16.23 ft at 12:00PM Mar 20, 2023Observed: 16.25 ft at 12:15PM Mar 20, 2023Observed: 16.33 ft at 12:30PM Mar 20, 2023Observed: 16.44 ft at 12:45PM Mar 20, 2023Observed: 16.23 ft at 1:00PM Mar 20, 2023Observed: 16.19 ft at 1:15PM Mar 20, 2023Observed: 16.17 ft at 1:30PM Mar 20, 2023Observed: 16.14 ft at 1:45PM Mar 20, 2023Observed: 16.19 ft at 2:00PM Mar 20, 2023Observed: 15.96 ft at 2:15PM Mar 20, 2023Observed: 15.87 ft at 2:30PM Mar 20, 2023Observed: 15.99 ft at 2:45PM Mar 20, 2023Observed: 15.9 ft at 3:00PM Mar 20, 2023Observed: 15.86 ft at 3:15PM Mar 20, 2023Observed: 15.85 ft at 3:30PM Mar 20, 2023Observed: 15.82 ft at 3:45PM Mar 20, 2023Observed: 15.84 ft at 4:00PM Mar 20, 2023Observed: 15.83 ft at 4:15PM Mar 20, 2023Observed: 15.77 ft at 4:30PM Mar 20, 2023Observed: 15.73 ft at 4:45PM Mar 20, 2023Observed: 15.74 ft at 5:00PM Mar 20, 2023Observed: 15.75 ft at 5:15PM Mar 20, 2023Observed: 15.77 ft at 5:30PM Mar 20, 2023Observed: 15.69 ft at 5:45PM Mar 20, 2023Observed: 15.72 ft at 6:00PM Mar 20, 2023Observed: 15.72 ft at 6:15PM Mar 20, 2023Observed: 15.94 ft at 6:30PM Mar 20, 2023Observed: 15.62 ft at 6:45PM Mar 20, 2023Observed: 15.68 ft at 7:00PM Mar 20, 2023Observed: 15.71 ft at 7:15PM Mar 20, 2023Observed: 15.74 ft at 7:30PM Mar 20, 2023Observed: 15.68 ft at 7:45PM Mar 20, 2023Observed: 15.72 ft at 8:00PM Mar 20, 2023Observed: 15.57 ft at 8:15PM Mar 20, 2023Observed: 15.55 ft at 8:30PM Mar 20, 2023Observed: 15.5 ft at 8:45PM Mar 20, 2023Observed: 15.45 ft at 9:00PM Mar 20, 2023Observed: 15.44 ft at 9:15PM Mar 20, 2023Observed: 15.4 ft at 9:30PM Mar 20, 2023Observed: 15.43 ft at 9:45PM Mar 20, 2023Observed: 15.37 ft at 10:00PM Mar 20, 2023Observed: 15.23 ft at 10:15PM Mar 20, 2023Observed: 15.18 ft at 10:30PM Mar 20, 2023Observed: 15.1 ft at 10:45PM Mar 20, 2023Observed: 15.06 ft at 11:00PM Mar 20, 2023Observed: 14.98 ft at 11:15PM Mar 20, 2023Observed: 15.02 ft at 11:30PM Mar 20, 2023Observed: 14.97 ft at 11:45PM Mar 20, 2023Observed: 14.92 ft at 12:00AM Mar 21, 2023Observed: 14.94 ft at 12:15AM Mar 21, 2023Observed: 14.89 ft at 12:30AM Mar 21, 2023Observed: 14.88 ft at 12:45AM Mar 21, 2023Observed: 14.99 ft at 1:00AM Mar 21, 2023Observed: 14.9 ft at 1:15AM Mar 21, 2023Observed: 14.85 ft at 1:30AM Mar 21, 2023Observed: 15.12 ft at 1:45AM Mar 21, 2023Observed: 14.83 ft at 2:00AM Mar 21, 2023Observed: 14.71 ft at 2:15AM Mar 21, 2023Observed: 14.77 ft at 2:30AM Mar 21, 2023Observed: 14.9 ft at 2:45AM Mar 21, 2023Observed: 14.77 ft at 3:00AM Mar 21, 2023Observed: 14.76 ft at 3:15AM Mar 21, 2023Observed: 14.76 ft at 3:30AM Mar 21, 2023Observed: 15.02 ft at 3:45AM Mar 21, 2023Observed: 15.07 ft at 4:00AM Mar 21, 2023Observed: 15.08 ft at 4:15AM Mar 21, 2023Observed: 14.53 ft at 4:30AM Mar 21, 2023Observed: 15.04 ft at 4:45AM Mar 21, 2023Observed: 15.19 ft at 5:00AM Mar 21, 2023Observed: 15.48 ft at 5:15AM Mar 21, 2023Observed: 15.41 ft at 5:30AM Mar 21, 2023Observed: 15.05 ft at 5:45AM Mar 21, 2023Observed: 15.46 ft at 6:00AM Mar 21, 2023Observed: 15.56 ft at 6:30AM Mar 21, 2023Observed: 15.69 ft at 6:45AM Mar 21, 2023Observed: 15.62 ft at 7:00AM Mar 21, 2023Observed: 15.57 ft at 7:15AM Mar 21, 2023Observed: 15.92 ft at 7:30AM Mar 21, 2023Observed: 15.69 ft at 7:45AM Mar 21, 2023Observed: 15.65 ft at 8:00AM Mar 21, 2023Observed: 15.71 ft at 8:15AM Mar 21, 2023Observed: 15.51 ft at 8:30AM Mar 21, 2023Observed: 15.74 ft at 8:45AM Mar 21, 2023Observed: 15.94 ft at 9:00AM Mar 21, 2023Observed: 16 ft at 9:15AM Mar 21, 2023Observed: 16.05 ft at 9:30AM Mar 21, 2023Observed: 16.07 ft at 9:45AM Mar 21, 2023Observed: 16.1 ft at 10:00AM Mar 21, 2023Observed: 16.11 ft at 10:15AM Mar 21, 2023Observed: 16.41 ft at 10:30AM Mar 21, 2023Observed: 16.18 ft at 10:45AM Mar 21, 2023Observed: 16.13 ft at 11:00AM Mar 21, 2023Observed: 16.16 ft at 11:15AM Mar 21, 2023Observed: 16.2 ft at 11:30AM Mar 21, 2023Observed: 16.48 ft at 11:45AM Mar 21, 2023Observed: 16.33 ft at 12:00PM Mar 21, 2023Observed: 16.26 ft at 12:15PM Mar 21, 2023Observed: 16.14 ft at 12:30PM Mar 21, 2023Observed: 16.22 ft at 12:45PM Mar 21, 2023Observed: 16.13 ft at 1:00PM Mar 21, 2023Observed: 16.24 ft at 1:15PM Mar 21, 2023Observed: 16.25 ft at 1:30PM Mar 21, 2023Observed: 16.27 ft at 1:45PM Mar 21, 2023Observed: 16.28 ft at 2:00PM Mar 21, 2023Observed: 16.57 ft at 2:15PM Mar 21, 2023Observed: 16.38 ft at 2:30PM Mar 21, 2023Observed: 16.37 ft at 2:45PM Mar 21, 2023Observed: 16.34 ft at 3:00PM Mar 21, 2023Observed: 16.31 ft at 3:15PM Mar 21, 2023Observed: 16.28 ft at 3:30PM Mar 21, 2023Observed: 16.29 ft at 3:45PM Mar 21, 2023Observed: 16.32 ft at 4:00PM Mar 21, 2023Observed: 16.42 ft at 4:15PM Mar 21, 2023Observed: 16.39 ft at 4:30PM Mar 21, 2023Observed: 16.38 ft at 4:45PM Mar 21, 2023Observed: 16.27 ft at 5:00PM Mar 21, 2023Observed: 16.07 ft at 5:15PM Mar 21, 2023Observed: 16.02 ft at 5:30PM Mar 21, 2023Observed: 15.99 ft at 5:45PM Mar 21, 2023Observed: 16.07 ft at 6:00PM Mar 21, 2023Observed: 16.01 ft at 6:15PM Mar 21, 2023Observed: 15.91 ft at 6:30PM Mar 21, 2023Observed: 15.87 ft at 6:45PM Mar 21, 2023Observed: 15.86 ft at 7:00PM Mar 21, 2023Observed: 15.87 ft at 7:15PM Mar 21, 2023Observed: 15.81 ft at 7:30PM Mar 21, 2023Observed: 15.84 ft at 7:45PM Mar 21, 2023Observed: 15.85 ft at 8:00PM Mar 21, 2023Observed: 15.83 ft at 8:15PM Mar 21, 2023Observed: 15.85 ft at 8:30PM Mar 21, 2023Observed: 15.83 ft at 8:45PM Mar 21, 2023Observed: 15.86 ft at 9:00PM Mar 21, 2023Observed: 15.85 ft at 9:15PM Mar 21, 2023Observed: 15.89 ft at 9:30PM Mar 21, 2023Observed: 15.87 ft at 9:45PM Mar 21, 2023Observed: 15.72 ft at 10:00PM Mar 21, 2023Observed: 16.01 ft at 10:15PM Mar 21, 2023Observed: 15.77 ft at 10:30PM Mar 21, 2023Observed: 15.82 ft at 10:45PM Mar 21, 2023Observed: 15.85 ft at 11:00PM Mar 21, 2023Observed: 15.6 ft at 11:15PM Mar 21, 2023Observed: 15.49 ft at 11:30PM Mar 21, 2023Observed: 15.41 ft at 11:45PM Mar 21, 2023Observed: 15.49 ft at 12:00AM Mar 22, 2023Observed: 15.28 ft at 12:15AM Mar 22, 2023Observed: 15.27 ft at 12:30AM Mar 22, 2023Observed: 15.2 ft at 12:45AM Mar 22, 2023Observed: 15.11 ft at 1:00AM Mar 22, 2023Observed: 14.92 ft at 1:15AM Mar 22, 2023Observed: 14.92 ft at 1:30AM Mar 22, 2023Observed: 14.87 ft at 1:45AM Mar 22, 2023Observed: 14.89 ft at 2:00AM Mar 22, 2023Observed: 14.79 ft at 2:15AM Mar 22, 2023Observed: 14.84 ft at 2:30AM Mar 22, 2023Observed: 14.84 ft at 2:45AM Mar 22, 2023Observed: 14.76 ft at 3:00AM Mar 22, 2023Observed: 14.72 ft at 3:15AM Mar 22, 2023Observed: 14.66 ft at 3:30AM Mar 22, 2023Observed: 14.63 ft at 3:45AM Mar 22, 2023Observed: 14.64 ft at 4:00AM Mar 22, 2023Observed: 14.63 ft at 4:15AM Mar 22, 2023Observed: 14.63 ft at 4:30AM Mar 22, 2023Observed: 14.59 ft at 4:45AM Mar 22, 2023Observed: 14.59 ft at 5:00AM Mar 22, 2023Observed: 14.7 ft at 5:15AM Mar 22, 2023Observed: 14.6 ft at 5:30AM Mar 22, 2023Observed: 14.48 ft at 5:45AM Mar 22, 2023Observed: 14.58 ft at 6:00AM Mar 22, 2023Observed: 14.56 ft at 6:15AM Mar 22, 2023Observed: 14.45 ft at 6:30AM Mar 22, 2023Observed: 14.5 ft at 6:45AM Mar 22, 2023Observed: 14.51 ft at 7:00AM Mar 22, 2023Observed: 14.53 ft at 7:15AM Mar 22, 2023Observed: 14.49 ft at 7:30AM Mar 22, 2023Observed: 14.46 ft at 7:45AM Mar 22, 2023Observed: 14.35 ft at 8:00AM Mar 22, 2023Observed: 14.43 ft at 8:15AM Mar 22, 2023Observed: 14.42 ft at 8:30AM Mar 22, 2023Observed: 14.51 ft at 8:45AM Mar 22, 2023Observed: 14.5 ft at 9:00AM Mar 22, 2023Observed: 14.51 ft at 9:15AM Mar 22, 2023Observed: 14.53 ft at 9:30AM Mar 22, 2023Observed: 14.48 ft at 9:45AM Mar 22, 2023Observed: 14.52 ft at 10:00AM Mar 22, 2023Observed: 14.54 ft at 10:15AM Mar 22, 2023Observed: 14.51 ft at 10:30AM Mar 22, 2023Observed: 14.79 ft at 10:45AM Mar 22, 2023Observed: 14.72 ft at 11:00AM Mar 22, 2023Observed: 14.73 ft at 11:15AM Mar 22, 2023Observed: 14.72 ft at 11:30AM Mar 22, 2023Observed: 14.75 ft at 11:45AM Mar 22, 2023Observed: 15.12 ft at 12:00PM Mar 22, 2023Observed: 15.1 ft at 12:15PM Mar 22, 2023Observed: 15.05 ft at 12:30PM Mar 22, 2023Observed: 15.11 ft at 12:45PM Mar 22, 2023Observed: 15.18 ft at 1:00PM Mar 22, 2023Observed: 15.33 ft at 1:15PM Mar 22, 2023Observed: 15.41 ft at 1:30PM Mar 22, 2023Observed: 15.49 ft at 1:45PM Mar 22, 2023Observed: 15.54 ft at 2:00PM Mar 22, 2023Forecast: 15.2 ft 8:00PM Mar 22, 2023Forecast: 15.1 ft 2:00AM Mar 23, 2023Forecast: 15.2 ft 8:00AM Mar 23, 2023Forecast: 15.2 ft 2:00PM Mar 23, 2023Forecast: 15.3 ft 8:00PM Mar 23, 2023Forecast: 15.8 ft 2:00AM Mar 24, 2023Forecast: 16.5 ft 8:00AM Mar 24, 2023Forecast: 18.6 ft 2:00PM Mar 24, 2023Forecast: 20.8 ft 8:00PM Mar 24, 2023Forecast: 22.8 ft 2:00AM Mar 25, 2023Forecast: 24.5 ft 8:00AM Mar 25, 2023Forecast: 25.7 ft 2:00PM Mar 25, 2023Forecast: 26.5 ft 8:00PM Mar 25, 2023Forecast: 26.9 ft 2:00AM Mar 26, 2023Highest Forecast: 27 ft 8:00AM Mar 26, 2023Highest Forecast: 27 ft 2:00PM Mar 26, 2023Forecast: 26.9 ft 8:00PM Mar 26, 2023Forecast: 26.6 ft 2:00AM Mar 27, 2023Forecast: 26 ft 8:00AM Mar 27, 2023RNOO1(plotting HTIRG) Graph Created (2:50PM Mar 22, 2023)ObservedForecast (issued 9:31AM Mar 22)Latest observed value: 15.54 ft at 2:00 PM EDT 22-Mar-2023. Flood Stage is 37 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: River Forecasts typically include ONLY 2 days of future rain from forecast issuance time (lower right of graph). Occasionally 3 days of future rain included.

NOTE: Forecasts for the Ohio River at Willow Island Lock are issued routinely year-round.

Vertical Datum reference a local datum

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Upstream Gauge - above Sardis Upstream Gauge Downstream Gauge Downstream Gauge - at Marietta Pumphouse
Flood Categories (in feet)
Major Flood Stage: 42
Moderate Flood Stage: 41
Flood Stage: 37
Action Stage: 35
Low Stage (in feet): -9999

Historic Crests
(1) 44.78 ft on 09/19/2004
(2) 42.90 ft on 01/08/2005
(3) 40.43 ft on 02/18/2018
(4) 38.51 ft on 03/13/2011
(5) 37.21 ft on 09/12/2018
(6) 36.38 ft on 04/05/2018
(7) 34.30 ft on 02/08/2008
(8) 33.12 ft on 02/20/2000
(9) 32.19 ft on 03/16/2015

(P): Preliminary values subject to further review.

Recent Crests
(1) 37.21 ft on 09/12/2018
(2) 36.38 ft on 04/05/2018
(3) 40.43 ft on 02/18/2018
(4) 32.19 ft on 03/16/2015
(5) 38.51 ft on 03/13/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 4.40 ft on 02/03/1936

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
42 Ohio Route 7 near Reno and Lower Newport is flooded. Areas around Cow Creek near Willow Island are flooded.
41 Water starts to inundate Ohio Route 7 in the Reno area.
37 Ohio State Route 7, Township Road 443, and Township Road 19 at Newell Run and Lenards Landing floods.
36 Ohio Route 7 starts to flood at Collins Run, just south of Matamoras.
About This Location Collapse

Latitude: 39.360278° N, Longitude: 81.320833° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 37 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 570.000 ft 607.00 ft  
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) 10 Day (NAEFS) River Forecast vs. River Potential
HEFS Ensemble NAEFS Ensemble One Page Explainer

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

See the Product Description Document link for more details on the interpretation of the 10 day graphics.

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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.
NWS Information
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(304) 356-5885
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Page last modified: 2-Nov-2020 7:30 PM
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