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Hydrograph River at a Glance Download
Monongahela River at Grays Landing Lock and Dam Pool (ft)Flow (kcfs)Observed: 11.14 ft at 8:15AM Nov 24, 2014Observed: 11.27 ft at 8:30AM Nov 24, 2014Observed: 11.34 ft at 8:45AM Nov 24, 2014Observed: 11.26 ft at 9:00AM Nov 24, 2014Observed: 11.2 ft at 9:15AM Nov 24, 2014Observed: 11.15 ft at 9:30AM Nov 24, 2014Observed: 11.11 ft at 9:45AM Nov 24, 2014Observed: 11.09 ft at 10:00AM Nov 24, 2014Observed: 11.04 ft at 10:15AM Nov 24, 2014Observed: 11.01 ft at 10:30AM Nov 24, 2014Observed: 10.98 ft at 10:45AM Nov 24, 2014Observed: 10.95 ft at 11:00AM Nov 24, 2014Observed: 10.92 ft at 11:15AM Nov 24, 2014Observed: 10.9 ft at 11:30AM Nov 24, 2014Observed: 10.88 ft at 11:45AM Nov 24, 2014Observed: 10.85 ft at 12:00PM Nov 24, 2014Observed: 10.83 ft at 12:15PM Nov 24, 2014Observed: 10.79 ft at 12:30PM Nov 24, 2014Observed: 10.76 ft at 12:45PM Nov 24, 2014Observed: 10.71 ft at 1:00PM Nov 24, 2014Observed: 10.67 ft at 1:15PM Nov 24, 2014Observed: 10.65 ft at 1:30PM Nov 24, 2014Observed: 10.61 ft at 1:45PM Nov 24, 2014Observed: 10.59 ft at 2:00PM Nov 24, 2014Observed: 10.55 ft at 2:15PM Nov 24, 2014Observed: 10.53 ft at 2:30PM Nov 24, 2014Observed: 10.51 ft at 2:45PM Nov 24, 2014Observed: 10.47 ft at 3:00PM Nov 24, 2014Observed: 10.44 ft at 3:15PM Nov 24, 2014Observed: 10.42 ft at 3:30PM Nov 24, 2014Observed: 10.4 ft at 3:45PM Nov 24, 2014Observed: 10.38 ft at 4:00PM Nov 24, 2014Observed: 10.36 ft at 4:15PM Nov 24, 2014Observed: 10.35 ft at 4:30PM Nov 24, 2014Observed: 10.35 ft at 4:45PM Nov 24, 2014Observed: 10.37 ft at 5:00PM Nov 24, 2014Observed: 10.36 ft at 5:15PM Nov 24, 2014Observed: 10.39 ft at 5:30PM Nov 24, 2014Observed: 10.41 ft at 5:45PM Nov 24, 2014Observed: 10.55 ft at 6:00PM Nov 24, 2014Observed: 10.91 ft at 6:15PM Nov 24, 2014Observed: 11.07 ft at 6:30PM Nov 24, 2014Observed: 11.17 ft at 6:45PM Nov 24, 2014Observed: 11.25 ft at 7:00PM Nov 24, 2014Observed: 11.4 ft at 7:15PM Nov 24, 2014Observed: 11.52 ft at 7:30PM Nov 24, 2014Observed: 11.59 ft at 7:45PM Nov 24, 2014Observed: 11.68 ft at 8:00PM Nov 24, 2014Observed: 11.75 ft at 8:15PM Nov 24, 2014Observed: 11.81 ft at 8:30PM Nov 24, 2014Highest Observation: 11.84 ft at 8:45PM Nov 24, 2014Observed: 11.63 ft at 9:00PM Nov 24, 2014Observed: 11.39 ft at 9:15PM Nov 24, 2014Observed: 11.32 ft at 9:30PM Nov 24, 2014Observed: 11.27 ft at 9:45PM Nov 24, 2014Observed: 11.25 ft at 10:00PM Nov 24, 2014Observed: 11.22 ft at 10:15PM Nov 24, 2014Observed: 11.06 ft at 10:30PM Nov 24, 2014Observed: 11.01 ft at 10:45PM Nov 24, 2014Observed: 10.96 ft at 11:00PM Nov 24, 2014Observed: 10.89 ft at 11:15PM Nov 24, 2014Observed: 10.87 ft at 11:30PM Nov 24, 2014Observed: 10.84 ft at 11:45PM Nov 24, 2014Observed: 10.76 ft at 12:00AM Nov 25, 2014Observed: 10.74 ft at 12:15AM Nov 25, 2014Observed: 10.72 ft at 12:30AM Nov 25, 2014Observed: 10.69 ft at 12:45AM Nov 25, 2014Observed: 10.67 ft at 1:00AM Nov 25, 2014Observed: 10.65 ft at 1:15AM Nov 25, 2014Observed: 10.62 ft at 1:30AM Nov 25, 2014Observed: 10.59 ft at 1:45AM Nov 25, 2014Observed: 10.56 ft at 2:00AM Nov 25, 2014Observed: 10.53 ft at 2:15AM Nov 25, 2014Observed: 10.51 ft at 2:30AM Nov 25, 2014Observed: 10.48 ft at 2:45AM Nov 25, 2014Observed: 10.47 ft at 3:00AM Nov 25, 2014Observed: 10.46 ft at 3:15AM Nov 25, 2014Observed: 10.44 ft at 3:30AM Nov 25, 2014Observed: 10.43 ft at 3:45AM Nov 25, 2014Observed: 10.42 ft at 4:00AM Nov 25, 2014Observed: 10.41 ft at 4:15AM Nov 25, 2014Observed: 10.41 ft at 4:30AM Nov 25, 2014Observed: 10.4 ft at 4:45AM Nov 25, 2014Observed: 10.4 ft at 5:00AM Nov 25, 2014Observed: 10.39 ft at 5:15AM Nov 25, 2014Observed: 10.39 ft at 5:30AM Nov 25, 2014Observed: 10.38 ft at 5:45AM Nov 25, 2014Observed: 10.38 ft at 6:00AM Nov 25, 2014Observed: 10.38 ft at 6:15AM Nov 25, 2014Observed: 10.38 ft at 6:30AM Nov 25, 2014Observed: 10.38 ft at 6:45AM Nov 25, 2014Observed: 10.39 ft at 7:00AM Nov 25, 2014Observed: 10.39 ft at 7:15AM Nov 25, 2014Observed: 10.39 ft at 7:30AM Nov 25, 2014Observed: 10.41 ft at 7:45AM Nov 25, 2014Observed: 10.35 ft at 8:00AM Nov 25, 2014Observed: 10.4 ft at 8:15AM Nov 25, 2014Observed: 10.41 ft at 8:30AM Nov 25, 2014Observed: 10.41 ft at 8:45AM Nov 25, 2014Observed: 10.41 ft at 9:00AM Nov 25, 2014Observed: 10.41 ft at 9:15AM Nov 25, 2014Observed: 10.4 ft at 9:30AM Nov 25, 2014Observed: 10.4 ft at 9:45AM Nov 25, 2014Observed: 10.41 ft at 10:00AM Nov 25, 2014Observed: 10.41 ft at 10:15AM Nov 25, 2014Observed: 10.41 ft at 10:30AM Nov 25, 2014Observed: 10.41 ft at 10:45AM Nov 25, 2014Observed: 10.41 ft at 11:00AM Nov 25, 2014Observed: 10.41 ft at 11:15AM Nov 25, 2014Observed: 10.42 ft at 11:30AM Nov 25, 2014Observed: 10.42 ft at 11:45AM Nov 25, 2014Observed: 10.42 ft at 12:00PM Nov 25, 2014Observed: 10.42 ft at 12:15PM Nov 25, 2014Observed: 10.42 ft at 12:30PM Nov 25, 2014Observed: 10.41 ft at 12:45PM Nov 25, 2014Observed: 10.41 ft at 1:00PM Nov 25, 2014Observed: 10.41 ft at 1:15PM Nov 25, 2014Observed: 10.41 ft at 1:30PM Nov 25, 2014Observed: 10.4 ft at 1:45PM Nov 25, 2014Observed: 10.41 ft at 2:00PM Nov 25, 2014Observed: 10.4 ft at 2:15PM Nov 25, 2014Observed: 10.4 ft at 2:30PM Nov 25, 2014Observed: 10.39 ft at 2:45PM Nov 25, 2014Observed: 10.38 ft at 3:00PM Nov 25, 2014Observed: 10.38 ft at 3:15PM Nov 25, 2014Observed: 10.37 ft at 3:30PM Nov 25, 2014Observed: 10.37 ft at 3:45PM Nov 25, 2014Observed: 10.37 ft at 4:00PM Nov 25, 2014Observed: 10.37 ft at 4:15PM Nov 25, 2014Observed: 10.36 ft at 4:30PM Nov 25, 2014Observed: 10.35 ft at 4:45PM Nov 25, 2014Observed: 10.34 ft at 5:00PM Nov 25, 2014Observed: 10.32 ft at 5:15PM Nov 25, 2014Observed: 10.31 ft at 5:30PM Nov 25, 2014Observed: 10.29 ft at 5:45PM Nov 25, 2014Observed: 10.28 ft at 6:00PM Nov 25, 2014Observed: 10.26 ft at 6:15PM Nov 25, 2014Observed: 10.25 ft at 6:30PM Nov 25, 2014Observed: 10.24 ft at 6:45PM Nov 25, 2014Observed: 10.24 ft at 7:00PM Nov 25, 2014Observed: 10.24 ft at 7:15PM Nov 25, 2014Observed: 10.22 ft at 7:30PM Nov 25, 2014Observed: 10.23 ft at 7:45PM Nov 25, 2014Observed: 10.22 ft at 8:00PM Nov 25, 2014Observed: 10.22 ft at 8:15PM Nov 25, 2014Observed: 10.22 ft at 8:30PM Nov 25, 2014Observed: 10.21 ft at 8:45PM Nov 25, 2014Observed: 10.21 ft at 9:00PM Nov 25, 2014Observed: 10.21 ft at 9:15PM Nov 25, 2014Observed: 10.21 ft at 9:30PM Nov 25, 2014Observed: 10.21 ft at 9:45PM Nov 25, 2014Observed: 10.2 ft at 10:00PM Nov 25, 2014Observed: 10.2 ft at 10:15PM Nov 25, 2014Observed: 10.2 ft at 10:30PM Nov 25, 2014Observed: 10.19 ft at 10:45PM Nov 25, 2014Observed: 10.19 ft at 11:00PM Nov 25, 2014Observed: 10.19 ft at 11:15PM Nov 25, 2014Observed: 10.19 ft at 11:30PM Nov 25, 2014Observed: 10.19 ft at 11:45PM Nov 25, 2014Observed: 10.18 ft at 12:00AM Nov 26, 2014Observed: 10.19 ft at 12:15AM Nov 26, 2014Observed: 10.19 ft at 12:30AM Nov 26, 2014Observed: 10.18 ft at 12:45AM Nov 26, 2014Observed: 10.19 ft at 1:00AM Nov 26, 2014Observed: 10.19 ft at 1:15AM Nov 26, 2014Observed: 10.19 ft at 1:30AM Nov 26, 2014Observed: 10.18 ft at 1:45AM Nov 26, 2014Observed: 10.19 ft at 2:00AM Nov 26, 2014Observed: 10.19 ft at 2:15AM Nov 26, 2014Observed: 10.18 ft at 2:30AM Nov 26, 2014Observed: 10.18 ft at 2:45AM Nov 26, 2014Observed: 10.19 ft at 3:00AM Nov 26, 2014Observed: 10.19 ft at 3:15AM Nov 26, 2014Observed: 10.19 ft at 3:30AM Nov 26, 2014Observed: 10.19 ft at 3:45AM Nov 26, 2014Observed: 10.2 ft at 4:00AM Nov 26, 2014Observed: 10.2 ft at 4:15AM Nov 26, 2014Observed: 10.21 ft at 4:30AM Nov 26, 2014Observed: 10.21 ft at 4:45AM Nov 26, 2014Observed: 10.21 ft at 5:00AM Nov 26, 2014Observed: 10.22 ft at 5:15AM Nov 26, 2014Observed: 10.22 ft at 5:30AM Nov 26, 2014Observed: 10.24 ft at 5:45AM Nov 26, 2014Observed: 10.24 ft at 6:00AM Nov 26, 2014Observed: 10.25 ft at 6:15AM Nov 26, 2014Observed: 10.26 ft at 6:30AM Nov 26, 2014Observed: 10.27 ft at 6:45AM Nov 26, 2014Observed: 10.47 ft at 7:00AM Nov 26, 2014Observed: 10.74 ft at 7:15AM Nov 26, 2014Observed: 10.82 ft at 7:30AM Nov 26, 2014Observed: 10.87 ft at 7:45AM Nov 26, 2014Observed: 10.92 ft at 8:00AM Nov 26, 2014Observed: 11.01 ft at 8:15AM Nov 26, 2014Observed: 11.1 ft at 8:30AM Nov 26, 2014Observed: 11.17 ft at 8:45AM Nov 26, 2014Observed: 11.23 ft at 9:00AM Nov 26, 2014Observed: 11.29 ft at 9:15AM Nov 26, 2014Observed: 11.35 ft at 9:30AM Nov 26, 2014Observed: 11.4 ft at 9:45AM Nov 26, 2014Observed: 11.43 ft at 10:00AM Nov 26, 2014Observed: 11.49 ft at 10:15AM Nov 26, 2014Observed: 11.52 ft at 10:30AM Nov 26, 2014Observed: 11.53 ft at 10:45AM Nov 26, 2014Observed: 11.57 ft at 11:00AM Nov 26, 2014Observed: 11.6 ft at 11:15AM Nov 26, 2014Observed: 11.6 ft at 11:30AM Nov 26, 2014Observed: 11.62 ft at 11:45AM Nov 26, 2014Observed: 11.56 ft at 12:00PM Nov 26, 2014Observed: 11.52 ft at 12:15PM Nov 26, 2014Observed: 11.49 ft at 12:30PM Nov 26, 2014Observed: 11.49 ft at 12:45PM Nov 26, 2014Observed: 11.47 ft at 1:00PM Nov 26, 2014Observed: 11.46 ft at 1:15PM Nov 26, 2014Observed: 11.44 ft at 1:30PM Nov 26, 2014Observed: 11.43 ft at 1:45PM Nov 26, 2014Observed: 11.42 ft at 2:00PM Nov 26, 2014Observed: 11.41 ft at 2:15PM Nov 26, 2014Observed: 11.4 ft at 2:30PM Nov 26, 2014Observed: 11.39 ft at 2:45PM Nov 26, 2014Observed: 11.39 ft at 3:00PM Nov 26, 2014Observed: 11.38 ft at 3:15PM Nov 26, 2014Observed: 11.38 ft at 3:30PM Nov 26, 2014Observed: 11.38 ft at 3:45PM Nov 26, 2014Observed: 11.37 ft at 4:00PM Nov 26, 2014Observed: 11.36 ft at 4:15PM Nov 26, 2014Observed: 11.36 ft at 4:30PM Nov 26, 2014Observed: 11.36 ft at 4:45PM Nov 26, 2014Observed: 11.45 ft at 5:00PM Nov 26, 2014Observed: 11.5 ft at 5:15PM Nov 26, 2014Observed: 11.52 ft at 5:30PM Nov 26, 2014Observed: 11.52 ft at 5:45PM Nov 26, 2014Observed: 11.54 ft at 6:00PM Nov 26, 2014Observed: 11.57 ft at 6:15PM Nov 26, 2014Observed: 11.6 ft at 6:30PM Nov 26, 2014Observed: 11.61 ft at 6:45PM Nov 26, 2014Observed: 11.62 ft at 7:00PM Nov 26, 2014Observed: 11.63 ft at 7:15PM Nov 26, 2014Observed: 11.64 ft at 7:30PM Nov 26, 2014Observed: 11.65 ft at 7:45PM Nov 26, 2014Observed: 11.66 ft at 8:00PM Nov 26, 2014Observed: 11.66 ft at 8:15PM Nov 26, 2014Observed: 11.68 ft at 8:30PM Nov 26, 2014Observed: 11.66 ft at 8:45PM Nov 26, 2014Observed: 11.45 ft at 9:00PM Nov 26, 2014Observed: 11.26 ft at 9:15PM Nov 26, 2014Observed: 11.19 ft at 9:30PM Nov 26, 2014Observed: 11.14 ft at 9:45PM Nov 26, 2014Observed: 11.09 ft at 10:00PM Nov 26, 2014Observed: 11.01 ft at 10:15PM Nov 26, 2014Observed: 10.92 ft at 10:30PM Nov 26, 2014Observed: 10.84 ft at 10:45PM Nov 26, 2014Observed: 10.8 ft at 11:00PM Nov 26, 2014Observed: 10.77 ft at 11:15PM Nov 26, 2014Observed: 10.71 ft at 11:30PM Nov 26, 2014Observed: 10.68 ft at 11:45PM Nov 26, 2014Observed: 10.63 ft at 12:00AM Nov 27, 2014Observed: 10.59 ft at 12:15AM Nov 27, 2014Observed: 10.57 ft at 12:30AM Nov 27, 2014Observed: 10.55 ft at 12:45AM Nov 27, 2014Observed: 10.52 ft at 1:00AM Nov 27, 2014Observed: 10.48 ft at 1:15AM Nov 27, 2014Observed: 10.52 ft at 1:30AM Nov 27, 2014Observed: 10.44 ft at 1:45AM Nov 27, 2014Observed: 10.45 ft at 2:00AM Nov 27, 2014Observed: 10.4 ft at 2:15AM Nov 27, 2014Observed: 10.31 ft at 2:30AM Nov 27, 2014Observed: 10.36 ft at 2:45AM Nov 27, 2014Observed: 10.32 ft at 3:00AM Nov 27, 2014Observed: 10.35 ft at 3:15AM Nov 27, 2014Observed: 10.34 ft at 3:30AM Nov 27, 2014Observed: 10.31 ft at 3:45AM Nov 27, 2014Observed: 10.3 ft at 4:00AM Nov 27, 2014Observed: 10.31 ft at 4:15AM Nov 27, 2014Observed: 10.3 ft at 4:30AM Nov 27, 2014Observed: 10.29 ft at 4:45AM Nov 27, 2014Observed: 10.28 ft at 5:00AM Nov 27, 2014Observed: 10.27 ft at 5:15AM Nov 27, 2014Observed: 10.27 ft at 5:30AM Nov 27, 2014Observed: 10.27 ft at 5:45AM Nov 27, 2014Observed: 10.26 ft at 6:00AM Nov 27, 2014Observed: 10.26 ft at 6:15AM Nov 27, 2014Observed: 10.26 ft at 6:30AM Nov 27, 2014Observed: 10.26 ft at 6:45AM Nov 27, 2014Observed: 10.33 ft at 7:00AM Nov 27, 2014Observed: 10.54 ft at 7:15AM Nov 27, 2014Observed: 10.61 ft at 7:30AM Nov 27, 2014Observed: 10.66 ft at 7:45AM Nov 27, 2014Forecast: 11.2 ft 1:00PM Nov 27, 2014Highest Forecast: 12 ft 7:00PM Nov 27, 2014Forecast: 11.2 ft 1:00AM Nov 28, 2014Forecast: 10.9 ft 7:00AM Nov 28, 2014Forecast: 11 ft 1:00PM Nov 28, 2014Forecast: 11.6 ft 7:00PM Nov 28, 2014Forecast: 11 ft 1:00AM Nov 29, 2014Forecast: 10.7 ft 7:00AM Nov 29, 2014Forecast: 10.8 ft 1:00PM Nov 29, 2014Forecast: 11.3 ft 7:00PM Nov 29, 2014Forecast: 10.8 ft 1:00AM Nov 30, 2014Forecast: 10.6 ft 7:00AM Nov 30, 2014Forecast: 10.9 ft 1:00PM Nov 30, 2014Forecast: 11.6 ft 7:00PM Nov 30, 2014Forecast: 10.9 ft 1:00AM Dec 01, 2014Forecast: 10.7 ft 7:00AM Dec 01, 2014Forecast: 11.1 ft 1:00PM Dec 01, 2014Forecast: 11.9 ft 7:00PM Dec 01, 2014USGS--Water Resources of the United StatesGYLP1(plotting HPIRG) Graph Created (8:02AM Nov 27, 2014)ObservedForecast (issued 8:20PM Nov 26)Latest observed value: 10.66 ft at 7:45 AM EST 27-Nov-2014. Flood Stage is 21 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
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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 Monongahela River at Grays Landing Lock and Dam are issued routinely year-round.

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Upstream Gauge - at Point Marion Lock and Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Maxwell Lock and Dam
Flood Categories (in feet)
Major Flood Stage: 27
Moderate Flood Stage: 25
Flood Stage: 21
Action Stage: 15
Low Stage (in feet): 0

Historic Crests
(1) 36.00 ft on 07/01/1888
(2) 28.40 ft on 03/18/1936
(3) 25.80 ft on 01/20/1996
(4) 24.50 ft on 02/19/2000
(5) 21.70 ft on 12/14/2007
(6) 21.37 ft on 12/14/2007
(7) 21.00 ft on 05/04/2009
(8) 20.70 ft on 03/21/2002
(9) 20.60 ft on 01/26/2010
(10) 20.09 ft on 11/23/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.09 ft on 11/23/2011
(2) 20.60 ft on 01/26/2010
(3) 21.00 ft on 05/04/2009
(4) 19.27 ft on 06/05/2008
(5) 21.70 ft on 12/14/2007
(6) 21.37 ft on 12/14/2007
(7) 19.31 ft on 04/16/2007
(8) 19.34 ft on 03/07/2004
(9) 19.00 ft on 02/23/2003
(10) 20.70 ft on 03/21/2002
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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
35 Flood waters reach the historic log cabin along Front Street in Greensboro.
34 Flood waters reach the corner of Front and County Streets in Greensboro.
31 Flood waters reach the Bed and Breakfast on County Street in Greensboro.
25 Flood waters reach Martin Ferry Road in the village of Glasworks.
24 The lock walls are overtopped at Grays Landing Lock and Dam.
21 The lock at Grays Landing Lock and Dam goes out of service, and navigation is suspended.
19 The bike trail floods in Greensboro near County Street.
About This Location Collapse

Latitude: 39.825000° N, Longitude: 79.923056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 21 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 769 ft 790 ft  

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: 20-Nov-2014 2:55 AM
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