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Hydrograph River at a Glance Download
Ohio River at Montgomery Lock and Dam Tailwater (ft)Flow (kcfs)Observed: 13.24 ft at 3:45AM Aug 29, 2014Observed: 13.24 ft at 4:00AM Aug 29, 2014Observed: 13.23 ft at 4:15AM Aug 29, 2014Observed: 13.2 ft at 4:30AM Aug 29, 2014Observed: 13.2 ft at 4:45AM Aug 29, 2014Observed: 13.18 ft at 5:00AM Aug 29, 2014Observed: 13.15 ft at 5:15AM Aug 29, 2014Observed: 13.13 ft at 5:30AM Aug 29, 2014Observed: 13.13 ft at 5:45AM Aug 29, 2014Observed: 13.11 ft at 6:00AM Aug 29, 2014Observed: 13.11 ft at 6:15AM Aug 29, 2014Observed: 13.09 ft at 6:30AM Aug 29, 2014Observed: 13.12 ft at 6:45AM Aug 29, 2014Observed: 13.07 ft at 7:00AM Aug 29, 2014Observed: 13.09 ft at 7:15AM Aug 29, 2014Observed: 13.04 ft at 7:30AM Aug 29, 2014Observed: 13.05 ft at 7:45AM Aug 29, 2014Observed: 13.02 ft at 8:00AM Aug 29, 2014Observed: 13.04 ft at 8:15AM Aug 29, 2014Observed: 13.02 ft at 8:30AM Aug 29, 2014Observed: 12.98 ft at 8:45AM Aug 29, 2014Observed: 13 ft at 9:00AM Aug 29, 2014Observed: 12.96 ft at 9:15AM Aug 29, 2014Observed: 12.96 ft at 9:30AM Aug 29, 2014Observed: 12.96 ft at 9:45AM Aug 29, 2014Observed: 12.92 ft at 10:00AM Aug 29, 2014Observed: 12.93 ft at 10:15AM Aug 29, 2014Observed: 12.91 ft at 10:30AM Aug 29, 2014Observed: 12.89 ft at 10:45AM Aug 29, 2014Observed: 12.84 ft at 11:00AM Aug 29, 2014Observed: 12.86 ft at 11:15AM Aug 29, 2014Observed: 12.81 ft at 11:30AM Aug 29, 2014Observed: 12.75 ft at 11:45AM Aug 29, 2014Observed: 12.79 ft at 12:00PM Aug 29, 2014Observed: 12.72 ft at 12:15PM Aug 29, 2014Observed: 12.73 ft at 12:30PM Aug 29, 2014Observed: 12.7 ft at 12:45PM Aug 29, 2014Observed: 12.68 ft at 1:00PM Aug 29, 2014Observed: 12.64 ft at 1:15PM Aug 29, 2014Observed: 12.59 ft at 1:30PM Aug 29, 2014Observed: 12.6 ft at 1:45PM Aug 29, 2014Observed: 12.57 ft at 2:00PM Aug 29, 2014Observed: 12.56 ft at 2:15PM Aug 29, 2014Observed: 12.55 ft at 2:30PM Aug 29, 2014Observed: 12.57 ft at 2:45PM Aug 29, 2014Observed: 12.56 ft at 3:00PM Aug 29, 2014Observed: 12.56 ft at 3:15PM Aug 29, 2014Observed: 12.55 ft at 3:30PM Aug 29, 2014Observed: 12.54 ft at 3:45PM Aug 29, 2014Observed: 12.56 ft at 4:00PM Aug 29, 2014Observed: 12.54 ft at 4:15PM Aug 29, 2014Observed: 12.54 ft at 4:30PM Aug 29, 2014Observed: 12.54 ft at 4:45PM Aug 29, 2014Observed: 12.56 ft at 5:00PM Aug 29, 2014Observed: 12.58 ft at 5:15PM Aug 29, 2014Observed: 12.56 ft at 5:30PM Aug 29, 2014Observed: 12.57 ft at 5:45PM Aug 29, 2014Observed: 12.61 ft at 6:00PM Aug 29, 2014Observed: 12.6 ft at 6:15PM Aug 29, 2014Observed: 12.63 ft at 6:30PM Aug 29, 2014Observed: 12.64 ft at 6:45PM Aug 29, 2014Observed: 12.61 ft at 7:00PM Aug 29, 2014Observed: 12.66 ft at 7:15PM Aug 29, 2014Observed: 12.67 ft at 7:30PM Aug 29, 2014Observed: 12.69 ft at 7:45PM Aug 29, 2014Observed: 12.65 ft at 8:00PM Aug 29, 2014Observed: 12.68 ft at 8:15PM Aug 29, 2014Observed: 12.73 ft at 8:30PM Aug 29, 2014Observed: 12.71 ft at 8:45PM Aug 29, 2014Observed: 12.72 ft at 9:00PM Aug 29, 2014Observed: 12.73 ft at 9:15PM Aug 29, 2014Observed: 12.75 ft at 9:30PM Aug 29, 2014Observed: 12.77 ft at 9:45PM Aug 29, 2014Observed: 12.77 ft at 10:00PM Aug 29, 2014Observed: 12.78 ft at 10:15PM Aug 29, 2014Observed: 12.84 ft at 10:30PM Aug 29, 2014Observed: 12.84 ft at 10:45PM Aug 29, 2014Observed: 12.81 ft at 11:00PM Aug 29, 2014Observed: 12.85 ft at 11:15PM Aug 29, 2014Observed: 12.89 ft at 11:30PM Aug 29, 2014Observed: 12.92 ft at 11:45PM Aug 29, 2014Observed: 12.93 ft at 12:00AM Aug 30, 2014Observed: 12.93 ft at 12:15AM Aug 30, 2014Observed: 12.95 ft at 12:30AM Aug 30, 2014Observed: 12.98 ft at 12:45AM Aug 30, 2014Observed: 12.98 ft at 1:00AM Aug 30, 2014Observed: 12.99 ft at 1:15AM Aug 30, 2014Observed: 13.02 ft at 1:30AM Aug 30, 2014Observed: 13 ft at 1:45AM Aug 30, 2014Observed: 13.04 ft at 2:00AM Aug 30, 2014Observed: 13.08 ft at 2:15AM Aug 30, 2014Observed: 13.06 ft at 2:30AM Aug 30, 2014Observed: 13.08 ft at 2:45AM Aug 30, 2014Observed: 13.08 ft at 3:00AM Aug 30, 2014Observed: 13.11 ft at 3:15AM Aug 30, 2014Observed: 13.1 ft at 3:30AM Aug 30, 2014Observed: 13.14 ft at 3:45AM Aug 30, 2014Observed: 13.16 ft at 4:00AM Aug 30, 2014Observed: 13.15 ft at 4:15AM Aug 30, 2014Observed: 13.17 ft at 4:30AM Aug 30, 2014Observed: 13.16 ft at 4:45AM Aug 30, 2014Observed: 13.17 ft at 5:00AM Aug 30, 2014Observed: 13.19 ft at 5:15AM Aug 30, 2014Observed: 13.23 ft at 5:30AM Aug 30, 2014Observed: 13.24 ft at 5:45AM Aug 30, 2014Observed: 13.22 ft at 6:00AM Aug 30, 2014Observed: 13.26 ft at 6:15AM Aug 30, 2014Observed: 13.24 ft at 6:30AM Aug 30, 2014Observed: 13.27 ft at 6:45AM Aug 30, 2014Observed: 13.28 ft at 7:00AM Aug 30, 2014Observed: 13.28 ft at 7:15AM Aug 30, 2014Observed: 13.29 ft at 7:30AM Aug 30, 2014Observed: 13.29 ft at 7:45AM Aug 30, 2014Observed: 13.29 ft at 8:00AM Aug 30, 2014Observed: 13.29 ft at 8:15AM Aug 30, 2014Observed: 13.29 ft at 8:30AM Aug 30, 2014Observed: 13.3 ft at 8:45AM Aug 30, 2014Observed: 13.28 ft at 9:00AM Aug 30, 2014Observed: 13.28 ft at 9:15AM Aug 30, 2014Observed: 13.28 ft at 9:30AM Aug 30, 2014Observed: 13.28 ft at 9:45AM Aug 30, 2014Observed: 13.28 ft at 10:00AM Aug 30, 2014Observed: 13.29 ft at 10:15AM Aug 30, 2014Observed: 13.27 ft at 10:30AM Aug 30, 2014Observed: 13.26 ft at 10:45AM Aug 30, 2014Observed: 13.27 ft at 11:00AM Aug 30, 2014Observed: 13.25 ft at 11:15AM Aug 30, 2014Observed: 13.26 ft at 11:30AM Aug 30, 2014Observed: 13.22 ft at 11:45AM Aug 30, 2014Observed: 13.21 ft at 12:00PM Aug 30, 2014Observed: 13.21 ft at 12:15PM Aug 30, 2014Observed: 13.19 ft at 12:30PM Aug 30, 2014Observed: 13.17 ft at 12:45PM Aug 30, 2014Observed: 13.16 ft at 1:00PM Aug 30, 2014Observed: 13.19 ft at 1:15PM Aug 30, 2014Observed: 13.14 ft at 1:30PM Aug 30, 2014Observed: 13.13 ft at 1:45PM Aug 30, 2014Observed: 13.11 ft at 2:00PM Aug 30, 2014Observed: 13.09 ft at 2:15PM Aug 30, 2014Observed: 13.05 ft at 2:30PM Aug 30, 2014Observed: 13.07 ft at 2:45PM Aug 30, 2014Observed: 13.04 ft at 3:00PM Aug 30, 2014Observed: 13.04 ft at 3:15PM Aug 30, 2014Observed: 13.02 ft at 3:30PM Aug 30, 2014Observed: 13.03 ft at 3:45PM Aug 30, 2014Observed: 13.02 ft at 4:00PM Aug 30, 2014Observed: 13.01 ft at 4:15PM Aug 30, 2014Observed: 13.01 ft at 4:30PM Aug 30, 2014Observed: 13.02 ft at 4:45PM Aug 30, 2014Observed: 13 ft at 5:00PM Aug 30, 2014Observed: 13.02 ft at 5:15PM Aug 30, 2014Observed: 13.02 ft at 5:30PM Aug 30, 2014Observed: 13 ft at 5:45PM Aug 30, 2014Observed: 12.99 ft at 6:00PM Aug 30, 2014Observed: 13.02 ft at 6:15PM Aug 30, 2014Observed: 13.01 ft at 6:30PM Aug 30, 2014Observed: 13.02 ft at 6:45PM Aug 30, 2014Observed: 13.01 ft at 7:00PM Aug 30, 2014Observed: 13.06 ft at 7:15PM Aug 30, 2014Observed: 13.07 ft at 7:30PM Aug 30, 2014Observed: 13.04 ft at 7:45PM Aug 30, 2014Observed: 13.1 ft at 8:00PM Aug 30, 2014Observed: 13.09 ft at 8:15PM Aug 30, 2014Observed: 13.11 ft at 8:30PM Aug 30, 2014Observed: 13.1 ft at 8:45PM Aug 30, 2014Observed: 13.13 ft at 9:00PM Aug 30, 2014Observed: 13.12 ft at 9:15PM Aug 30, 2014Observed: 13.13 ft at 9:30PM Aug 30, 2014Observed: 13.13 ft at 9:45PM Aug 30, 2014Observed: 13.14 ft at 10:00PM Aug 30, 2014Observed: 13.16 ft at 10:15PM Aug 30, 2014Observed: 13.19 ft at 10:30PM Aug 30, 2014Observed: 13.23 ft at 10:45PM Aug 30, 2014Observed: 13.25 ft at 11:00PM Aug 30, 2014Observed: 13.27 ft at 11:15PM Aug 30, 2014Observed: 13.31 ft at 11:30PM Aug 30, 2014Observed: 13.34 ft at 11:45PM Aug 30, 2014Observed: 13.4 ft at 12:00AM Aug 31, 2014Observed: 13.37 ft at 12:15AM Aug 31, 2014Observed: 13.43 ft at 12:30AM Aug 31, 2014Observed: 13.44 ft at 12:45AM Aug 31, 2014Observed: 13.46 ft at 1:00AM Aug 31, 2014Observed: 13.49 ft at 1:15AM Aug 31, 2014Observed: 13.52 ft at 1:30AM Aug 31, 2014Observed: 13.55 ft at 1:45AM Aug 31, 2014Observed: 13.52 ft at 2:00AM Aug 31, 2014Observed: 13.6 ft at 2:15AM Aug 31, 2014Observed: 13.57 ft at 2:30AM Aug 31, 2014Observed: 13.63 ft at 2:45AM Aug 31, 2014Observed: 13.64 ft at 3:00AM Aug 31, 2014Observed: 13.65 ft at 3:15AM Aug 31, 2014Observed: 13.65 ft at 3:30AM Aug 31, 2014Observed: 13.65 ft at 3:45AM Aug 31, 2014Observed: 13.64 ft at 4:00AM Aug 31, 2014Observed: 13.66 ft at 4:15AM Aug 31, 2014Observed: 13.68 ft at 4:30AM Aug 31, 2014Observed: 13.68 ft at 4:45AM Aug 31, 2014Observed: 13.68 ft at 5:00AM Aug 31, 2014Highest Observation: 13.7 ft at 5:15AM Aug 31, 2014Observed: 13.69 ft at 5:30AM Aug 31, 2014Observed: 13.64 ft at 5:45AM Aug 31, 2014Observed: 13.67 ft at 6:00AM Aug 31, 2014Observed: 13.63 ft at 6:15AM Aug 31, 2014Observed: 13.57 ft at 6:30AM Aug 31, 2014Observed: 13.59 ft at 6:45AM Aug 31, 2014Observed: 13.54 ft at 7:00AM Aug 31, 2014Observed: 13.51 ft at 7:15AM Aug 31, 2014Observed: 13.47 ft at 7:30AM Aug 31, 2014Observed: 13.42 ft at 7:45AM Aug 31, 2014Observed: 13.38 ft at 8:00AM Aug 31, 2014Observed: 13.35 ft at 8:15AM Aug 31, 2014Observed: 13.29 ft at 8:30AM Aug 31, 2014Observed: 13.24 ft at 8:45AM Aug 31, 2014Observed: 13.21 ft at 9:00AM Aug 31, 2014Observed: 13.18 ft at 9:15AM Aug 31, 2014Observed: 13.16 ft at 9:30AM Aug 31, 2014Observed: 13.17 ft at 9:45AM Aug 31, 2014Observed: 13.13 ft at 10:00AM Aug 31, 2014Observed: 13.15 ft at 10:15AM Aug 31, 2014Observed: 13.12 ft at 10:30AM Aug 31, 2014Observed: 13.1 ft at 10:45AM Aug 31, 2014Observed: 13.05 ft at 11:00AM Aug 31, 2014Observed: 13.02 ft at 11:15AM Aug 31, 2014Observed: 13.02 ft at 11:30AM Aug 31, 2014Observed: 13.01 ft at 11:45AM Aug 31, 2014Observed: 12.99 ft at 12:00PM Aug 31, 2014Observed: 12.99 ft at 12:15PM Aug 31, 2014Observed: 12.94 ft at 12:30PM Aug 31, 2014Observed: 12.93 ft at 12:45PM Aug 31, 2014Observed: 12.91 ft at 1:00PM Aug 31, 2014Observed: 12.88 ft at 1:15PM Aug 31, 2014Observed: 12.86 ft at 1:30PM Aug 31, 2014Observed: 12.83 ft at 1:45PM Aug 31, 2014Observed: 12.79 ft at 2:00PM Aug 31, 2014Observed: 12.81 ft at 2:15PM Aug 31, 2014Observed: 12.8 ft at 2:30PM Aug 31, 2014Observed: 12.77 ft at 2:45PM Aug 31, 2014Observed: 12.79 ft at 3:00PM Aug 31, 2014Observed: 12.73 ft at 3:15PM Aug 31, 2014Observed: 12.71 ft at 3:30PM Aug 31, 2014Observed: 12.71 ft at 3:45PM Aug 31, 2014Observed: 12.7 ft at 4:00PM Aug 31, 2014Observed: 12.66 ft at 4:15PM Aug 31, 2014Observed: 12.74 ft at 4:30PM Aug 31, 2014Observed: 12.8 ft at 4:45PM Aug 31, 2014Observed: 12.81 ft at 5:00PM Aug 31, 2014Observed: 12.72 ft at 5:15PM Aug 31, 2014Observed: 12.85 ft at 5:30PM Aug 31, 2014Observed: 12.81 ft at 5:45PM Aug 31, 2014Observed: 12.8 ft at 6:00PM Aug 31, 2014Observed: 12.78 ft at 6:15PM Aug 31, 2014Observed: 12.77 ft at 6:30PM Aug 31, 2014Observed: 12.73 ft at 6:45PM Aug 31, 2014Observed: 12.81 ft at 7:00PM Aug 31, 2014Observed: 12.85 ft at 7:15PM Aug 31, 2014Observed: 12.84 ft at 7:30PM Aug 31, 2014Observed: 12.91 ft at 7:45PM Aug 31, 2014Observed: 12.89 ft at 8:00PM Aug 31, 2014Observed: 12.81 ft at 8:15PM Aug 31, 2014Observed: 12.88 ft at 8:30PM Aug 31, 2014Observed: 12.81 ft at 8:45PM Aug 31, 2014Observed: 12.88 ft at 9:00PM Aug 31, 2014Observed: 12.87 ft at 9:15PM Aug 31, 2014Observed: 12.84 ft at 9:30PM Aug 31, 2014Observed: 12.82 ft at 9:45PM Aug 31, 2014Observed: 12.84 ft at 10:00PM Aug 31, 2014Observed: 12.86 ft at 10:15PM Aug 31, 2014Observed: 12.93 ft at 10:30PM Aug 31, 2014Observed: 12.87 ft at 10:45PM Aug 31, 2014Observed: 12.88 ft at 11:00PM Aug 31, 2014Observed: 12.88 ft at 11:15PM Aug 31, 2014Observed: 12.87 ft at 11:30PM Aug 31, 2014Observed: 12.88 ft at 11:45PM Aug 31, 2014Observed: 12.89 ft at 12:00AM Sep 01, 2014Observed: 12.94 ft at 12:15AM Sep 01, 2014Observed: 12.9 ft at 12:30AM Sep 01, 2014Observed: 12.85 ft at 12:45AM Sep 01, 2014Observed: 12.84 ft at 1:00AM Sep 01, 2014Observed: 12.95 ft at 1:15AM Sep 01, 2014Observed: 12.73 ft at 1:30AM Sep 01, 2014Observed: 12.74 ft at 1:45AM Sep 01, 2014Observed: 12.73 ft at 2:00AM Sep 01, 2014Observed: 12.68 ft at 2:15AM Sep 01, 2014Observed: 12.8 ft at 2:30AM Sep 01, 2014Observed: 12.7 ft at 2:45AM Sep 01, 2014Highest Forecast: 13 ft 8:00AM Sep 01, 2014Highest Forecast: 13 ft 2:00PM Sep 01, 2014Forecast: 12.9 ft 8:00PM Sep 01, 2014Forecast: 12.8 ft 2:00AM Sep 02, 2014Forecast: 12.7 ft 8:00AM Sep 02, 2014Forecast: 12.7 ft 2:00PM Sep 02, 2014Forecast: 12.6 ft 8:00PM Sep 02, 2014Forecast: 12.6 ft 2:00AM Sep 03, 2014Forecast: 12.8 ft 8:00AM Sep 03, 2014Forecast: 12.8 ft 2:00PM Sep 03, 2014Forecast: 12.8 ft 8:00PM Sep 03, 2014Forecast: 12.9 ft 2:00AM Sep 04, 2014Forecast: 12.9 ft 8:00AM Sep 04, 2014Forecast: 12.9 ft 2:00PM Sep 04, 2014Forecast: 12.7 ft 8:00PM Sep 04, 2014Forecast: 12.6 ft 2:00AM Sep 05, 2014Forecast: 12.6 ft 8:00AM Sep 05, 2014Forecast: 12.5 ft 2:00PM Sep 05, 2014Forecast: 12.4 ft 8:00PM Sep 05, 2014USGS--Water Resources of the United StatesMGYP1(plotting HTIRG) Graph Created (3:32AM Sep 1, 2014)ObservedForecast (issued 9:06PM Aug 31)Latest observed value: 12.7 ft at 2:45 AM EDT 1-Sep-2014. Flood Stage is 33 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
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

Historical 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 Historical 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: 5-Aug-2014 6:39 PM
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