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Hydrograph River at a Glance Download
Ohio River at Meldahl Dam Tailwater (ft)Observed: 15.58 ft at 1:00AM Aug 16, 2018Observed: 15.6 ft at 2:00AM Aug 16, 2018Observed: 15.65 ft at 2:30AM Aug 16, 2018Observed: 15.63 ft at 3:00AM Aug 16, 2018Observed: 15.6 ft at 3:30AM Aug 16, 2018Observed: 15.68 ft at 4:30AM Aug 16, 2018Observed: 15.69 ft at 5:00AM Aug 16, 2018Observed: 15.72 ft at 5:30AM Aug 16, 2018Observed: 15.75 ft at 6:00AM Aug 16, 2018Observed: 15.73 ft at 6:30AM Aug 16, 2018Observed: 15.74 ft at 7:00AM Aug 16, 2018Observed: 15.74 ft at 7:30AM Aug 16, 2018Observed: 15.71 ft at 8:00AM Aug 16, 2018Observed: 15.7 ft at 8:30AM Aug 16, 2018Observed: 15.65 ft at 9:00AM Aug 16, 2018Observed: 15.67 ft at 9:30AM Aug 16, 2018Observed: 15.69 ft at 10:00AM Aug 16, 2018Observed: 15.71 ft at 10:30AM Aug 16, 2018Observed: 15.67 ft at 11:00AM Aug 16, 2018Observed: 15.69 ft at 11:30AM Aug 16, 2018Observed: 15.74 ft at 12:00PM Aug 16, 2018Observed: 15.74 ft at 12:30PM Aug 16, 2018Observed: 15.72 ft at 1:00PM Aug 16, 2018Observed: 15.75 ft at 1:30PM Aug 16, 2018Observed: 15.62 ft at 2:00PM Aug 16, 2018Observed: 15.64 ft at 2:30PM Aug 16, 2018Observed: 15.59 ft at 3:00PM Aug 16, 2018Observed: 15.59 ft at 3:30PM Aug 16, 2018Observed: 15.6 ft at 4:00PM Aug 16, 2018Observed: 15.62 ft at 4:30PM Aug 16, 2018Observed: 15.6 ft at 5:00PM Aug 16, 2018Observed: 15.48 ft at 5:30PM Aug 16, 2018Observed: 15.49 ft at 6:00PM Aug 16, 2018Observed: 15.65 ft at 6:30PM Aug 16, 2018Observed: 15.54 ft at 7:00PM Aug 16, 2018Observed: 15.39 ft at 7:30PM Aug 16, 2018Observed: 15.29 ft at 9:00PM Aug 16, 2018Observed: 15.05 ft at 10:30PM Aug 16, 2018Observed: 14.97 ft at 11:00PM Aug 16, 2018Observed: 14.88 ft at 11:30PM Aug 16, 2018Observed: 14.8 ft at 12:00AM Aug 17, 2018Observed: 14.72 ft at 12:30AM Aug 17, 2018Observed: 14.67 ft at 1:30AM Aug 17, 2018Observed: 14.7 ft at 2:00AM Aug 17, 2018Observed: 14.87 ft at 2:30AM Aug 17, 2018Observed: 14.98 ft at 3:00AM Aug 17, 2018Observed: 15.02 ft at 3:30AM Aug 17, 2018Observed: 15.17 ft at 4:00AM Aug 17, 2018Observed: 15.17 ft at 4:30AM Aug 17, 2018Observed: 15.09 ft at 5:00AM Aug 17, 2018Observed: 15.07 ft at 5:30AM Aug 17, 2018Observed: 15.13 ft at 6:00AM Aug 17, 2018Observed: 15.18 ft at 6:30AM Aug 17, 2018Observed: 15.23 ft at 7:00AM Aug 17, 2018Observed: 15.22 ft at 7:30AM Aug 17, 2018Observed: 15.19 ft at 8:00AM Aug 17, 2018Observed: 15.16 ft at 8:30AM Aug 17, 2018Observed: 15.11 ft at 9:00AM Aug 17, 2018Observed: 15.08 ft at 9:30AM Aug 17, 2018Observed: 14.96 ft at 10:00AM Aug 17, 2018Observed: 14.85 ft at 10:30AM Aug 17, 2018Observed: 14.78 ft at 11:00AM Aug 17, 2018Observed: 14.73 ft at 12:00PM Aug 17, 2018Observed: 14.74 ft at 12:30PM Aug 17, 2018Observed: 14.45 ft at 1:00PM Aug 17, 2018Observed: 14.41 ft at 1:30PM Aug 17, 2018Observed: 14.41 ft at 2:00PM Aug 17, 2018Observed: 14.3 ft at 2:30PM Aug 17, 2018Observed: 14.24 ft at 3:30PM Aug 17, 2018Observed: 14.25 ft at 4:00PM Aug 17, 2018Observed: 14.06 ft at 5:30PM Aug 17, 2018Observed: 14 ft at 6:00PM Aug 17, 2018Observed: 13.98 ft at 6:30PM Aug 17, 2018Observed: 13.9 ft at 8:00PM Aug 17, 2018Observed: 13.87 ft at 8:30PM Aug 17, 2018Observed: 13.88 ft at 9:00PM Aug 17, 2018Observed: 13.81 ft at 9:30PM Aug 17, 2018Observed: 13.87 ft at 10:00PM Aug 17, 2018Observed: 13.91 ft at 11:00PM Aug 17, 2018Observed: 14.07 ft at 11:30PM Aug 17, 2018Observed: 14.17 ft at 12:00AM Aug 18, 2018Observed: 14.29 ft at 12:30AM Aug 18, 2018Observed: 14.32 ft at 1:30AM Aug 18, 2018Observed: 14.26 ft at 2:30AM Aug 18, 2018Observed: 14.54 ft at 3:30AM Aug 18, 2018Observed: 14.56 ft at 4:00AM Aug 18, 2018Observed: 14.63 ft at 4:30AM Aug 18, 2018Observed: 14.67 ft at 5:00AM Aug 18, 2018Observed: 14.69 ft at 5:30AM Aug 18, 2018Observed: 14.67 ft at 6:00AM Aug 18, 2018Observed: 14.71 ft at 6:30AM Aug 18, 2018Observed: 14.73 ft at 7:00AM Aug 18, 2018Observed: 14.8 ft at 7:30AM Aug 18, 2018Observed: 14.83 ft at 8:00AM Aug 18, 2018Observed: 15.11 ft at 8:30AM Aug 18, 2018Observed: 15.06 ft at 9:00AM Aug 18, 2018Observed: 14.98 ft at 9:30AM Aug 18, 2018Observed: 15.05 ft at 10:00AM Aug 18, 2018Observed: 15.08 ft at 10:30AM Aug 18, 2018Observed: 15.14 ft at 11:00AM Aug 18, 2018Observed: 15.2 ft at 11:30AM Aug 18, 2018Observed: 15.31 ft at 12:00PM Aug 18, 2018Observed: 15.32 ft at 12:30PM Aug 18, 2018Observed: 15.38 ft at 1:00PM Aug 18, 2018Observed: 15.46 ft at 1:30PM Aug 18, 2018Observed: 15.47 ft at 2:30PM Aug 18, 2018Observed: 15.55 ft at 3:00PM Aug 18, 2018Observed: 15.54 ft at 3:30PM Aug 18, 2018Observed: 15.57 ft at 4:00PM Aug 18, 2018Observed: 15.51 ft at 4:30PM Aug 18, 2018Observed: 15.89 ft at 5:00PM Aug 18, 2018Observed: 15.87 ft at 5:30PM Aug 18, 2018Observed: 15.76 ft at 6:00PM Aug 18, 2018Observed: 15.8 ft at 6:30PM Aug 18, 2018Observed: 15.79 ft at 7:00PM Aug 18, 2018Observed: 15.77 ft at 7:30PM Aug 18, 2018Observed: 15.82 ft at 8:00PM Aug 18, 2018Observed: 16 ft at 8:30PM Aug 18, 2018Observed: 15.99 ft at 9:00PM Aug 18, 2018Observed: 16.17 ft at 9:30PM Aug 18, 2018Observed: 16.2 ft at 10:00PM Aug 18, 2018Observed: 16.26 ft at 10:30PM Aug 18, 2018Observed: 16.33 ft at 11:00PM Aug 18, 2018Observed: 16.45 ft at 11:30PM Aug 18, 2018Observed: 16.54 ft at 12:00AM Aug 19, 2018Observed: 16.96 ft at 12:30AM Aug 19, 2018Observed: 16.92 ft at 1:00AM Aug 19, 2018Observed: 16.76 ft at 1:30AM Aug 19, 2018Observed: 16.89 ft at 2:00AM Aug 19, 2018Observed: 16.9 ft at 2:30AM Aug 19, 2018Observed: 16.92 ft at 3:00AM Aug 19, 2018Observed: 16.95 ft at 3:30AM Aug 19, 2018Observed: 16.99 ft at 4:00AM Aug 19, 2018Observed: 17.05 ft at 4:30AM Aug 19, 2018Observed: 17.09 ft at 5:00AM Aug 19, 2018Observed: 17.08 ft at 5:30AM Aug 19, 2018Observed: 17.12 ft at 6:00AM Aug 19, 2018Observed: 17.14 ft at 6:30AM Aug 19, 2018Observed: 17.18 ft at 7:00AM Aug 19, 2018Observed: 17.29 ft at 7:30AM Aug 19, 2018Observed: 17.3 ft at 8:00AM Aug 19, 2018Observed: 17.28 ft at 8:30AM Aug 19, 2018Observed: 17.35 ft at 9:00AM Aug 19, 2018Observed: 17.28 ft at 9:30AM Aug 19, 2018Observed: 17.28 ft at 11:00AM Aug 19, 2018Observed: 17.55 ft at 11:30AM Aug 19, 2018Observed: 17.25 ft at 12:00PM Aug 19, 2018Observed: 17.44 ft at 12:30PM Aug 19, 2018Observed: 17.36 ft at 1:00PM Aug 19, 2018Observed: 17.52 ft at 1:30PM Aug 19, 2018Observed: 17.39 ft at 2:00PM Aug 19, 2018Observed: 17.42 ft at 2:30PM Aug 19, 2018Observed: 17.45 ft at 3:00PM Aug 19, 2018Observed: 17.39 ft at 3:30PM Aug 19, 2018Observed: 17.32 ft at 4:00PM Aug 19, 2018Observed: 17.48 ft at 4:30PM Aug 19, 2018Observed: 17.41 ft at 5:00PM Aug 19, 2018Observed: 17.5 ft at 6:00PM Aug 19, 2018Observed: 17.51 ft at 6:30PM Aug 19, 2018Observed: 17.43 ft at 7:00PM Aug 19, 2018Observed: 17.49 ft at 7:30PM Aug 19, 2018Observed: 17.56 ft at 8:00PM Aug 19, 2018Highest Observation: 17.59 ft at 8:30PM Aug 19, 2018Observed: 17.44 ft at 9:00PM Aug 19, 2018Observed: 17.29 ft at 9:30PM Aug 19, 2018Observed: 17.25 ft at 10:00PM Aug 19, 2018Observed: 17.25 ft at 10:30PM Aug 19, 2018Observed: 17.13 ft at 11:00PM Aug 19, 2018Observed: 17.03 ft at 11:30PM Aug 19, 2018Highest Forecast: 17.6 ft 2:00AM Aug 20, 2018Forecast: 16.9 ft 8:00AM Aug 20, 2018Forecast: 16.7 ft 2:00PM Aug 20, 2018Forecast: 16.5 ft 8:00PM Aug 20, 2018Forecast: 16 ft 2:00AM Aug 21, 2018Forecast: 15.4 ft 8:00AM Aug 21, 2018Forecast: 15.2 ft 2:00PM Aug 21, 2018Forecast: 15 ft 8:00PM Aug 21, 2018Forecast: 14.9 ft 2:00AM Aug 22, 2018Forecast: 14.7 ft 8:00AM Aug 22, 2018Forecast: 14.6 ft 2:00PM Aug 22, 2018Forecast: 14.6 ft 8:00PM Aug 22, 2018Forecast: 14.5 ft 2:00AM Aug 23, 2018Forecast: 14.4 ft 8:00AM Aug 23, 2018Forecast: 14.3 ft 2:00PM Aug 23, 2018Forecast: 14.3 ft 8:00PM Aug 23, 2018Forecast: 14.2 ft 2:00AM Aug 24, 2018Forecast: 14.2 ft 8:00AM Aug 24, 2018USGS--Water Resources of the United StatesMELO1(plotting HTIRG) Graph Created (12:51AM Aug 20, 2018)ObservedForecast (issued 11:16AM Aug 19)Latest observed value: 17.03 ft at 11:30 PM EDT 19-Aug-2018. Flood Stage is 51 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Ohio River at Meldahl Dam are issued routinely year-round.
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Upstream Gauge - at Maysville Upstream Gauge Downstream Gauge Downstream Gauge - at Cincinnati
Flood Categories (in feet)
Major Flood Stage: 64
Moderate Flood Stage: 58
Flood Stage: 51
Action Stage: 49
Low Stage (in feet): -9999

Historic Crests
(1) 76.00 ft on 01/26/1937
(2) 67.00 ft on 03/31/1913
(3) 65.50 ft on 03/06/1945
(4) 63.20 ft on 03/13/1964
(5) 62.50 ft on 03/05/1997
(6) 55.73 ft on 02/25/2018
(7) 54.41 ft on 03/15/2015
(8) 54.40 ft on 01/11/2005
(9) 53.80 ft on 01/03/1991
(10) 53.73 ft on 01/24/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 55.73 ft on 02/25/2018
(2) 53.43 ft on 02/20/2018
(3) 44.22 ft on 02/15/2018
(4) 54.41 ft on 03/15/2015
(5) 53.70 ft on 03/13/2011
(6) 54.40 ft on 01/11/2005
(7) 51.30 ft on 01/09/2004
(8) 48.70 ft on 02/26/2003
(9) 51.80 ft on 02/21/2000
(10) 62.50 ft on 03/05/1997
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
76 This is the flood of record which was set in January 1937. The entire floodplain is inundated. Much of Highway 52 is flooded, and many low-lying residences and businesses must be evacuated. Nearly all of Augusta, Kentucky is under water, as well as Higginsport, Chilo, Foster and Neville in Ohio, with 10 feet or more of water in areas of these communities.
70 Flooding as deep as 8 to 10 feet occurs in Augusta, Higginsport, Chilo, Foster and Neville. A flood of this magnitude is beyond the FEMA 1 percent flood with the entire floodplain inundated.
66 The Villages of Moscow and Neville are completely flooded. Major backwater flooding into creeks and streams occurs over Clermont, Brown, Bracken and Pendleton Counties. Much of Route 52 is under water, and major inundation of homes and businesses occurs in Chilo, Foster, Neville, Augusta and Higginsport.
64 The floodplain is inundated with flood depths of several feet of water into the communities of Neville, Moscow, Higginsport, Augusta, Foster and Chilo. A flood of this level equates roughly to the FEMA 1 percent flood.
63 The Village of Neville becomes inaccessible and much of Moscow becomes flooded. Large amounts of property damage can be expected and evacuations of homes and businesses becomes widespread. Route 52 is flooded in long stretches.
61 The entire Village of Neville in Clermont County becomes flooded. Much of Route 52 is impassible for long stretches. Significant lowland and backwater flooding can be expected along the river.
58 Much of the Village of Neville floods, with evacuations of homes and businesses becoming necessary. Significant backwater flooding occurs along creeks and streams emptying into the Ohio River. Route 52 becomes flooded in many low areas.
55 The Village of Neville, Ohio begins to experience lowland flooding, while backwater flooding along creeks and streams results in lowland flooding along the river. Route 52 becomes cut off in southern Clermont County at Bear Creek and Maple Creek near Neville.
54 Route 52 and State Route 232 near Point Pleasant, Ohio are covered with water. Backwater flooding near the river worsens in Clermont, Brown, Bracken and Pendleton Counties.
53 Water rises over Route 52 below the locks, and backwater flooding continues along several creeks and streams in Clermont and Brown counties in Ohio and Bracken and Pendleton Counties in Kentucky. Portions of Route 52 in Ohio and low areas between Route 8 and the river in Kentucky are flooded.
52 Lowland flooding of streets near Neville continues. Water covers Route 52 near State Route 232 in Point Pleasant, with backwater flooding up Big Indian Creek resulting in high water along stretches of Route 232 close to the river.
51 Lowland and backwater flooding impacts some roads in southern Clermont and Brown Counties in Ohio and Bracken County in Kentucky. Jones-Bradford Road floods near Route 8 in Bracken County.
50 Lowland flooding near the river increases, as well as backwater flooding in southern Clermont and Brown Counties in Ohio and Bracken County in Kentucky.
49 Lowland flooding near the river occurs, as well as backwater flooding in southern Clermont and Brown Counties in Ohio and Bracken County in Kentucky.
About This Location Collapse

Latitude: 38.798333° N, Longitude: 84.173056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 51 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 29 443 ft 494 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
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

'Normal' pool elevation for the 'lower' gage is 12'
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
Wilmington Weather Forecast Office
1901 South State Route 134
Wilmington, OH 45177
(937) 383-0031
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