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Hydrograph River at a Glance Download
Ohio River at Montgomery Lock and Dam Tailwater (ft)Flow (kcfs)Observed: 12.55 ft at 4:45PM May 19, 2015Observed: 12.6 ft at 5:00PM May 19, 2015Observed: 12.54 ft at 5:15PM May 19, 2015Observed: 12.69 ft at 5:30PM May 19, 2015Observed: 12.59 ft at 5:45PM May 19, 2015Observed: 12.6 ft at 6:00PM May 19, 2015Observed: 12.66 ft at 6:15PM May 19, 2015Observed: 12.72 ft at 6:30PM May 19, 2015Observed: 12.64 ft at 6:45PM May 19, 2015Observed: 12.73 ft at 7:00PM May 19, 2015Observed: 12.75 ft at 7:15PM May 19, 2015Observed: 12.85 ft at 7:30PM May 19, 2015Observed: 12.76 ft at 7:45PM May 19, 2015Observed: 12.83 ft at 8:00PM May 19, 2015Observed: 12.77 ft at 8:15PM May 19, 2015Observed: 12.76 ft at 8:30PM May 19, 2015Observed: 12.88 ft at 8:45PM May 19, 2015Observed: 12.92 ft at 9:00PM May 19, 2015Observed: 13.08 ft at 9:15PM May 19, 2015Observed: 13.03 ft at 9:30PM May 19, 2015Observed: 13.03 ft at 9:45PM May 19, 2015Observed: 13.07 ft at 10:00PM May 19, 2015Observed: 12.98 ft at 10:15PM May 19, 2015Observed: 13.08 ft at 10:30PM May 19, 2015Observed: 13.1 ft at 10:45PM May 19, 2015Observed: 13.14 ft at 11:00PM May 19, 2015Observed: 13.21 ft at 11:30PM May 19, 2015Observed: 13.24 ft at 11:45PM May 19, 2015Observed: 13.24 ft at 12:00AM May 20, 2015Observed: 13.33 ft at 12:15AM May 20, 2015Observed: 13.31 ft at 12:30AM May 20, 2015Observed: 13.32 ft at 12:45AM May 20, 2015Observed: 13.3 ft at 1:00AM May 20, 2015Observed: 13.31 ft at 1:15AM May 20, 2015Observed: 13.44 ft at 1:30AM May 20, 2015Observed: 13.47 ft at 1:45AM May 20, 2015Observed: 13.38 ft at 2:00AM May 20, 2015Observed: 13.45 ft at 2:15AM May 20, 2015Observed: 13.43 ft at 2:30AM May 20, 2015Observed: 13.43 ft at 2:45AM May 20, 2015Observed: 13.48 ft at 3:00AM May 20, 2015Observed: 13.39 ft at 3:15AM May 20, 2015Observed: 13.32 ft at 3:30AM May 20, 2015Observed: 13.35 ft at 3:45AM May 20, 2015Observed: 13.38 ft at 4:00AM May 20, 2015Observed: 13.39 ft at 4:15AM May 20, 2015Observed: 13.36 ft at 4:30AM May 20, 2015Observed: 13.4 ft at 4:45AM May 20, 2015Observed: 13.5 ft at 5:00AM May 20, 2015Observed: 13.36 ft at 5:15AM May 20, 2015Observed: 13.44 ft at 5:30AM May 20, 2015Observed: 13.36 ft at 5:45AM May 20, 2015Observed: 13.37 ft at 6:00AM May 20, 2015Observed: 13.51 ft at 6:15AM May 20, 2015Observed: 13.52 ft at 6:30AM May 20, 2015Observed: 13.63 ft at 6:45AM May 20, 2015Observed: 13.61 ft at 7:00AM May 20, 2015Observed: 13.66 ft at 7:30AM May 20, 2015Observed: 13.77 ft at 7:45AM May 20, 2015Observed: 13.63 ft at 8:00AM May 20, 2015Observed: 13.67 ft at 8:15AM May 20, 2015Observed: 13.67 ft at 8:30AM May 20, 2015Highest Observation: 13.86 ft at 8:45AM May 20, 2015Observed: 13.59 ft at 9:00AM May 20, 2015Observed: 13.64 ft at 9:15AM May 20, 2015Observed: 13.66 ft at 9:30AM May 20, 2015Observed: 13.7 ft at 9:45AM May 20, 2015Observed: 13.78 ft at 10:00AM May 20, 2015Highest Observation: 13.86 ft at 10:15AM May 20, 2015Observed: 13.81 ft at 10:30AM May 20, 2015Observed: 13.68 ft at 10:45AM May 20, 2015Observed: 13.69 ft at 11:00AM May 20, 2015Observed: 13.58 ft at 11:15AM May 20, 2015Observed: 13.54 ft at 11:30AM May 20, 2015Observed: 13.59 ft at 11:45AM May 20, 2015Observed: 13.69 ft at 12:00PM May 20, 2015Observed: 13.56 ft at 12:15PM May 20, 2015Observed: 13.61 ft at 12:30PM May 20, 2015Observed: 13.62 ft at 12:45PM May 20, 2015Observed: 13.66 ft at 1:00PM May 20, 2015Observed: 13.67 ft at 1:15PM May 20, 2015Observed: 13.59 ft at 1:30PM May 20, 2015Observed: 13.45 ft at 1:45PM May 20, 2015Observed: 13.5 ft at 2:00PM May 20, 2015Observed: 13.46 ft at 2:15PM May 20, 2015Observed: 13.4 ft at 2:30PM May 20, 2015Observed: 13.46 ft at 2:45PM May 20, 2015Observed: 13.37 ft at 3:00PM May 20, 2015Observed: 13.42 ft at 3:15PM May 20, 2015Observed: 13.38 ft at 3:30PM May 20, 2015Observed: 13.3 ft at 3:45PM May 20, 2015Observed: 13.27 ft at 4:00PM May 20, 2015Observed: 13.28 ft at 4:15PM May 20, 2015Observed: 13.24 ft at 4:30PM May 20, 2015Observed: 13.22 ft at 4:45PM May 20, 2015Observed: 13.19 ft at 5:00PM May 20, 2015Observed: 13.14 ft at 5:15PM May 20, 2015Observed: 12.74 ft at 5:30PM May 20, 2015Observed: 12.78 ft at 5:45PM May 20, 2015Observed: 12.67 ft at 6:00PM May 20, 2015Observed: 12.68 ft at 6:15PM May 20, 2015Observed: 12.68 ft at 6:30PM May 20, 2015Observed: 12.59 ft at 6:45PM May 20, 2015Observed: 12.56 ft at 7:00PM May 20, 2015Observed: 12.69 ft at 7:15PM May 20, 2015Observed: 12.91 ft at 7:30PM May 20, 2015Observed: 12.68 ft at 7:45PM May 20, 2015Observed: 12.54 ft at 8:00PM May 20, 2015Observed: 12.53 ft at 8:15PM May 20, 2015Observed: 12.62 ft at 8:30PM May 20, 2015Observed: 12.67 ft at 8:45PM May 20, 2015Observed: 12.62 ft at 9:00PM May 20, 2015Observed: 12.58 ft at 9:15PM May 20, 2015Observed: 12.62 ft at 9:30PM May 20, 2015Observed: 12.64 ft at 9:45PM May 20, 2015Observed: 12.69 ft at 10:00PM May 20, 2015Observed: 12.63 ft at 10:15PM May 20, 2015Observed: 12.61 ft at 10:30PM May 20, 2015Observed: 12.6 ft at 10:45PM May 20, 2015Observed: 12.69 ft at 11:00PM May 20, 2015Observed: 12.65 ft at 11:15PM May 20, 2015Observed: 12.64 ft at 11:30PM May 20, 2015Observed: 12.66 ft at 11:45PM May 20, 2015Observed: 12.65 ft at 12:00AM May 21, 2015Observed: 12.69 ft at 12:15AM May 21, 2015Observed: 12.71 ft at 12:30AM May 21, 2015Observed: 12.67 ft at 12:45AM May 21, 2015Observed: 12.65 ft at 1:00AM May 21, 2015Observed: 12.63 ft at 1:15AM May 21, 2015Observed: 12.7 ft at 1:30AM May 21, 2015Observed: 12.7 ft at 1:45AM May 21, 2015Observed: 12.77 ft at 2:00AM May 21, 2015Observed: 12.65 ft at 2:15AM May 21, 2015Observed: 12.68 ft at 2:30AM May 21, 2015Observed: 12.71 ft at 2:45AM May 21, 2015Observed: 12.73 ft at 3:00AM May 21, 2015Observed: 12.72 ft at 3:15AM May 21, 2015Observed: 12.74 ft at 3:30AM May 21, 2015Observed: 12.75 ft at 3:45AM May 21, 2015Observed: 12.7 ft at 4:00AM May 21, 2015Observed: 12.74 ft at 4:15AM May 21, 2015Observed: 12.76 ft at 4:30AM May 21, 2015Observed: 12.82 ft at 4:45AM May 21, 2015Observed: 12.81 ft at 5:00AM May 21, 2015Observed: 12.87 ft at 5:15AM May 21, 2015Observed: 12.7 ft at 5:30AM May 21, 2015Observed: 12.79 ft at 5:45AM May 21, 2015Observed: 12.83 ft at 6:00AM May 21, 2015Observed: 12.84 ft at 6:15AM May 21, 2015Observed: 12.81 ft at 6:30AM May 21, 2015Observed: 12.83 ft at 6:45AM May 21, 2015Observed: 12.89 ft at 7:00AM May 21, 2015Observed: 12.84 ft at 7:15AM May 21, 2015Observed: 12.89 ft at 7:30AM May 21, 2015Observed: 13.1 ft at 7:45AM May 21, 2015Observed: 12.86 ft at 8:00AM May 21, 2015Observed: 13 ft at 8:15AM May 21, 2015Observed: 13.03 ft at 8:30AM May 21, 2015Observed: 13.06 ft at 8:45AM May 21, 2015Observed: 13.09 ft at 9:00AM May 21, 2015Observed: 13.11 ft at 9:15AM May 21, 2015Observed: 13.07 ft at 9:30AM May 21, 2015Observed: 13.12 ft at 9:45AM May 21, 2015Observed: 13.16 ft at 10:00AM May 21, 2015Observed: 13.01 ft at 10:15AM May 21, 2015Observed: 13.07 ft at 10:30AM May 21, 2015Observed: 13.15 ft at 10:45AM May 21, 2015Observed: 13.14 ft at 11:00AM May 21, 2015Observed: 13.14 ft at 11:15AM May 21, 2015Observed: 13.12 ft at 11:30AM May 21, 2015Observed: 13.09 ft at 11:45AM May 21, 2015Observed: 13.12 ft at 12:00PM May 21, 2015Observed: 13.2 ft at 12:15PM May 21, 2015Observed: 12.96 ft at 12:30PM May 21, 2015Observed: 13.03 ft at 12:45PM May 21, 2015Observed: 13 ft at 1:00PM May 21, 2015Observed: 13.04 ft at 1:15PM May 21, 2015Observed: 13.08 ft at 1:30PM May 21, 2015Observed: 13.07 ft at 1:45PM May 21, 2015Observed: 13.01 ft at 2:00PM May 21, 2015Observed: 13 ft at 2:15PM May 21, 2015Observed: 12.99 ft at 2:30PM May 21, 2015Observed: 12.91 ft at 2:45PM May 21, 2015Observed: 12.93 ft at 3:00PM May 21, 2015Observed: 12.92 ft at 3:15PM May 21, 2015Observed: 12.92 ft at 3:30PM May 21, 2015Observed: 12.92 ft at 3:45PM May 21, 2015Observed: 12.87 ft at 4:00PM May 21, 2015Observed: 12.85 ft at 4:15PM May 21, 2015Observed: 12.85 ft at 4:30PM May 21, 2015Observed: 12.81 ft at 4:45PM May 21, 2015Observed: 12.78 ft at 5:00PM May 21, 2015Observed: 12.8 ft at 5:15PM May 21, 2015Observed: 12.81 ft at 5:30PM May 21, 2015Observed: 12.8 ft at 5:45PM May 21, 2015Observed: 12.8 ft at 6:00PM May 21, 2015Observed: 12.82 ft at 6:15PM May 21, 2015Observed: 12.75 ft at 6:30PM May 21, 2015Observed: 12.77 ft at 6:45PM May 21, 2015Observed: 12.61 ft at 7:00PM May 21, 2015Observed: 12.72 ft at 7:15PM May 21, 2015Observed: 12.69 ft at 7:30PM May 21, 2015Observed: 12.58 ft at 7:45PM May 21, 2015Observed: 12.53 ft at 8:00PM May 21, 2015Observed: 12.62 ft at 8:15PM May 21, 2015Observed: 12.65 ft at 8:30PM May 21, 2015Observed: 12.6 ft at 8:45PM May 21, 2015Observed: 12.6 ft at 9:00PM May 21, 2015Observed: 12.58 ft at 9:15PM May 21, 2015Observed: 12.51 ft at 9:30PM May 21, 2015Observed: 12.54 ft at 9:45PM May 21, 2015Observed: 12.61 ft at 10:00PM May 21, 2015Observed: 12.52 ft at 10:15PM May 21, 2015Observed: 12.46 ft at 10:30PM May 21, 2015Observed: 12.5 ft at 10:45PM May 21, 2015Observed: 12.54 ft at 11:00PM May 21, 2015Observed: 12.66 ft at 11:15PM May 21, 2015Observed: 12.57 ft at 11:30PM May 21, 2015Observed: 12.58 ft at 11:45PM May 21, 2015Observed: 12.54 ft at 12:00AM May 22, 2015Observed: 12.54 ft at 12:15AM May 22, 2015Observed: 12.57 ft at 12:30AM May 22, 2015Observed: 12.54 ft at 12:45AM May 22, 2015Observed: 12.57 ft at 1:00AM May 22, 2015Observed: 12.61 ft at 1:15AM May 22, 2015Observed: 12.35 ft at 1:30AM May 22, 2015Observed: 12.4 ft at 1:45AM May 22, 2015Observed: 12.39 ft at 2:00AM May 22, 2015Observed: 12.42 ft at 2:15AM May 22, 2015Observed: 12.4 ft at 2:30AM May 22, 2015Observed: 12.43 ft at 2:45AM May 22, 2015Observed: 12.37 ft at 3:00AM May 22, 2015Observed: 12.48 ft at 3:15AM May 22, 2015Observed: 12.52 ft at 3:30AM May 22, 2015Observed: 12.5 ft at 3:45AM May 22, 2015Observed: 12.47 ft at 4:00AM May 22, 2015Observed: 12.46 ft at 4:15AM May 22, 2015Observed: 12.44 ft at 4:30AM May 22, 2015Observed: 12.44 ft at 4:45AM May 22, 2015Observed: 12.42 ft at 5:00AM May 22, 2015Observed: 12.43 ft at 5:15AM May 22, 2015Observed: 12.6 ft at 5:30AM May 22, 2015Observed: 12.57 ft at 5:45AM May 22, 2015Observed: 12.67 ft at 6:00AM May 22, 2015Observed: 12.6 ft at 6:15AM May 22, 2015Observed: 12.62 ft at 6:30AM May 22, 2015Observed: 12.75 ft at 6:45AM May 22, 2015Observed: 12.65 ft at 7:00AM May 22, 2015Observed: 12.68 ft at 7:15AM May 22, 2015Observed: 12.74 ft at 7:30AM May 22, 2015Observed: 12.78 ft at 7:45AM May 22, 2015Observed: 12.86 ft at 8:00AM May 22, 2015Observed: 12.86 ft at 8:15AM May 22, 2015Observed: 12.83 ft at 8:30AM May 22, 2015Observed: 12.77 ft at 8:45AM May 22, 2015Observed: 12.89 ft at 9:00AM May 22, 2015Observed: 12.92 ft at 9:15AM May 22, 2015Observed: 12.91 ft at 9:30AM May 22, 2015Observed: 12.95 ft at 9:45AM May 22, 2015Observed: 12.96 ft at 10:00AM May 22, 2015Observed: 13.13 ft at 10:15AM May 22, 2015Observed: 13.03 ft at 10:30AM May 22, 2015Observed: 13.05 ft at 10:45AM May 22, 2015Observed: 13.07 ft at 11:00AM May 22, 2015Observed: 13.1 ft at 11:15AM May 22, 2015Observed: 13.21 ft at 11:30AM May 22, 2015Observed: 13.07 ft at 11:45AM May 22, 2015Observed: 13.19 ft at 12:00PM May 22, 2015Observed: 13.29 ft at 12:15PM May 22, 2015Observed: 13.17 ft at 12:30PM May 22, 2015Observed: 13.24 ft at 12:45PM May 22, 2015Observed: 13.24 ft at 1:00PM May 22, 2015Observed: 13.12 ft at 1:15PM May 22, 2015Observed: 13.25 ft at 1:30PM May 22, 2015Observed: 13.24 ft at 1:45PM May 22, 2015Observed: 13.22 ft at 2:00PM May 22, 2015Observed: 13.32 ft at 2:15PM May 22, 2015Observed: 13.36 ft at 2:30PM May 22, 2015Observed: 13.35 ft at 2:45PM May 22, 2015Observed: 13.25 ft at 3:00PM May 22, 2015Observed: 13.25 ft at 3:15PM May 22, 2015Observed: 13.31 ft at 3:30PM May 22, 2015Observed: 13.27 ft at 3:45PM May 22, 2015Highest Forecast: 12.6 ft 8:00PM May 22, 2015Forecast: 12.5 ft 2:00AM May 23, 2015Forecast: 12.5 ft 8:00AM May 23, 2015Forecast: 12.4 ft 2:00PM May 23, 2015Forecast: 12.4 ft 8:00PM May 23, 2015Forecast: 12.4 ft 2:00AM May 24, 2015Forecast: 12.3 ft 8:00AM May 24, 2015Forecast: 12.3 ft 2:00PM May 24, 2015Forecast: 12.3 ft 8:00PM May 24, 2015Forecast: 12.3 ft 2:00AM May 25, 2015Forecast: 12.3 ft 8:00AM May 25, 2015Forecast: 12.3 ft 2:00PM May 25, 2015Forecast: 12.2 ft 8:00PM May 25, 2015Forecast: 12.2 ft 2:00AM May 26, 2015Forecast: 12.2 ft 8:00AM May 26, 2015Forecast: 12.2 ft 2:00PM May 26, 2015Forecast: 12.1 ft 8:00PM May 26, 2015Forecast: 12.1 ft 2:00AM May 27, 2015Forecast: 12.1 ft 8:00AM May 27, 2015USGS--Water Resources of the United StatesMGYP1(plotting HTIRG) Graph Created (4:32PM May 22, 2015)ObservedForecast (issued 9:21AM May 22)Latest observed value: 13.27 ft at 3:45 PM EDT 22-May-2015. Flood Stage is 33 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
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Datum: Not Available
Metadata
NOTE: The above river forecast includes future rainfall/snowmelt. Forecast stages may be different if the actual rainfall/snowmelt is different than the forecast rainfall/snowmelt.

NOTE: Forecasts for the Ohio River at Montgomery Lock and Dam are issued routinely year-round.

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Upstream Gauge - at Dashields Lock and Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Wellsville
Flood Categories (in feet)
Major Flood Stage: 38
Moderate Flood Stage: 36
Flood Stage: 33
Action Stage: 23.3
Low Stage (in feet): 0

Historic Crests
(1) 55.00 ft on 03/18/1936
(2) 47.90 ft on 12/31/1942
(3) 43.10 ft on 06/24/1972
(4) 43.00 ft on 01/19/1996
(5) 43.00 ft on 10/17/1954
(6) 42.00 ft on 03/11/1966
(7) 41.30 ft on 01/23/1959
(8) 41.00 ft on 09/19/2004
(9) 40.50 ft on 01/28/1952
(10) 37.70 ft on 12/05/1950
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 24.20 ft on 03/24/2007
(2) 28.30 ft on 03/16/2007
(3) 36.90 ft on 01/07/2005
(4) 41.00 ft on 09/19/2004
(5) 27.80 ft on 09/10/2004
(6) 43.00 ft on 01/19/1996
(7) 31.20 ft on 01/01/1991
(8) 43.10 ft on 06/24/1972
(9) 42.00 ft on 03/11/1966
(10) 35.60 ft on 02/14/1966
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 9.01 ft on 09/25/1950
Zoom Level:16
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
55 This was the st. Patricks day flood of 1936. This crest occurred before flood control projects were in place at numerous locations upstream.
40.5 Lock walls overtopped.
37 Navigation suspended, lock out of service.
About This Location Collapse

Latitude: 40.647222° N, Longitude: 80.388889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 33 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 29 652.52 ft 685.52 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.
NWS Information
National Weather Service
Pittsburgh Weather Forecast Office
192 Shafer Road
Moon Township, PA 15108
(412) 262-1591
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Page last modified: 12-Feb-2015 9:34 PM
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