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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.



Hydrograph River at a Glance Download
Monongahela River at Hilderbrand Lock and Dam Tailwater (ft)Observed: 10.17 ft at 11:30AM Sep 24, 2023Observed: 10.02 ft at 11:45AM Sep 24, 2023Observed: 10.02 ft at 12:00PM Sep 24, 2023Observed: 10.17 ft at 12:15PM Sep 24, 2023Observed: 10.02 ft at 12:30PM Sep 24, 2023Observed: 10.06 ft at 12:45PM Sep 24, 2023Observed: 10.17 ft at 1:00PM Sep 24, 2023Observed: 10.07 ft at 1:15PM Sep 24, 2023Observed: 10.12 ft at 1:30PM Sep 24, 2023Observed: 10.18 ft at 1:45PM Sep 24, 2023Observed: 10.11 ft at 2:00PM Sep 24, 2023Observed: 10.16 ft at 2:15PM Sep 24, 2023Observed: 10.17 ft at 2:30PM Sep 24, 2023Observed: 10.16 ft at 2:45PM Sep 24, 2023Observed: 10.19 ft at 3:00PM Sep 24, 2023Observed: 10.19 ft at 3:15PM Sep 24, 2023Observed: 10.2 ft at 3:30PM Sep 24, 2023Observed: 10.2 ft at 3:45PM Sep 24, 2023Observed: 10.22 ft at 4:00PM Sep 24, 2023Observed: 10.22 ft at 4:15PM Sep 24, 2023Observed: 10.23 ft at 4:30PM Sep 24, 2023Observed: 10.25 ft at 4:45PM Sep 24, 2023Observed: 10.26 ft at 5:00PM Sep 24, 2023Observed: 10.27 ft at 5:15PM Sep 24, 2023Observed: 10.29 ft at 5:30PM Sep 24, 2023Observed: 10.18 ft at 5:45PM Sep 24, 2023Observed: 10.21 ft at 6:00PM Sep 24, 2023Observed: 10.18 ft at 6:15PM Sep 24, 2023Observed: 10.1 ft at 6:30PM Sep 24, 2023Observed: 10.11 ft at 6:45PM Sep 24, 2023Observed: 10.08 ft at 7:00PM Sep 24, 2023Observed: 10.02 ft at 7:15PM Sep 24, 2023Observed: 10.02 ft at 7:30PM Sep 24, 2023Observed: 9.99 ft at 7:45PM Sep 24, 2023Observed: 10.01 ft at 8:00PM Sep 24, 2023Observed: 9.88 ft at 8:15PM Sep 24, 2023Observed: 9.88 ft at 8:30PM Sep 24, 2023Observed: 10.04 ft at 8:45PM Sep 24, 2023Observed: 9.96 ft at 9:00PM Sep 24, 2023Observed: 9.87 ft at 9:15PM Sep 24, 2023Observed: 10.08 ft at 9:30PM Sep 24, 2023Observed: 9.99 ft at 9:45PM Sep 24, 2023Observed: 9.9 ft at 10:00PM Sep 24, 2023Observed: 10.04 ft at 10:15PM Sep 24, 2023Observed: 10 ft at 10:30PM Sep 24, 2023Observed: 9.86 ft at 10:45PM Sep 24, 2023Observed: 9.99 ft at 11:00PM Sep 24, 2023Observed: 9.94 ft at 11:15PM Sep 24, 2023Observed: 9.85 ft at 11:30PM Sep 24, 2023Observed: 9.93 ft at 11:45PM Sep 24, 2023Observed: 9.88 ft at 12:00AM Sep 25, 2023Observed: 9.74 ft at 12:15AM Sep 25, 2023Observed: 9.88 ft at 12:30AM Sep 25, 2023Observed: 9.76 ft at 12:45AM Sep 25, 2023Observed: 9.65 ft at 1:00AM Sep 25, 2023Observed: 9.74 ft at 1:15AM Sep 25, 2023Observed: 9.66 ft at 1:30AM Sep 25, 2023Observed: 9.63 ft at 1:45AM Sep 25, 2023Observed: 9.67 ft at 2:00AM Sep 25, 2023Observed: 9.66 ft at 2:15AM Sep 25, 2023Observed: 9.62 ft at 2:30AM Sep 25, 2023Observed: 9.65 ft at 2:45AM Sep 25, 2023Observed: 9.62 ft at 3:00AM Sep 25, 2023Observed: 9.6 ft at 3:15AM Sep 25, 2023Observed: 9.62 ft at 3:30AM Sep 25, 2023Observed: 9.56 ft at 3:45AM Sep 25, 2023Observed: 9.62 ft at 4:00AM Sep 25, 2023Observed: 9.63 ft at 4:15AM Sep 25, 2023Observed: 9.6 ft at 4:30AM Sep 25, 2023Observed: 9.68 ft at 4:45AM Sep 25, 2023Observed: 9.7 ft at 5:00AM Sep 25, 2023Observed: 9.67 ft at 5:15AM Sep 25, 2023Observed: 9.72 ft at 5:30AM Sep 25, 2023Observed: 9.73 ft at 5:45AM Sep 25, 2023Observed: 9.75 ft at 6:00AM Sep 25, 2023Observed: 9.77 ft at 6:15AM Sep 25, 2023Observed: 9.78 ft at 6:30AM Sep 25, 2023Observed: 9.81 ft at 6:45AM Sep 25, 2023Observed: 9.81 ft at 7:00AM Sep 25, 2023Observed: 9.84 ft at 7:15AM Sep 25, 2023Observed: 9.87 ft at 7:30AM Sep 25, 2023Observed: 9.88 ft at 7:45AM Sep 25, 2023Observed: 9.88 ft at 8:00AM Sep 25, 2023Observed: 9.98 ft at 8:15AM Sep 25, 2023Observed: 9.94 ft at 8:30AM Sep 25, 2023Observed: 9.92 ft at 8:45AM Sep 25, 2023Observed: 10.04 ft at 9:00AM Sep 25, 2023Observed: 9.92 ft at 9:15AM Sep 25, 2023Observed: 9.92 ft at 9:30AM Sep 25, 2023Observed: 10.07 ft at 9:45AM Sep 25, 2023Observed: 9.93 ft at 10:00AM Sep 25, 2023Observed: 10.24 ft at 10:15AM Sep 25, 2023Observed: 10.06 ft at 10:30AM Sep 25, 2023Observed: 10.07 ft at 10:45AM Sep 25, 2023Highest Observation: 10.46 ft at 11:00AM Sep 25, 2023Observed: 10.06 ft at 11:15AM Sep 25, 2023Observed: 9.81 ft at 11:30AM Sep 25, 2023Observed: 10.44 ft at 11:45AM Sep 25, 2023Observed: 10.1 ft at 12:00PM Sep 25, 2023Observed: 10.09 ft at 12:15PM Sep 25, 2023Observed: 10.37 ft at 12:30PM Sep 25, 2023Observed: 10.17 ft at 12:45PM Sep 25, 2023Observed: 10.23 ft at 1:00PM Sep 25, 2023Observed: 10.33 ft at 1:15PM Sep 25, 2023Observed: 10.24 ft at 1:30PM Sep 25, 2023Observed: 10.28 ft at 1:45PM Sep 25, 2023Observed: 10.34 ft at 2:00PM Sep 25, 2023Observed: 10.26 ft at 2:15PM Sep 25, 2023Observed: 10.21 ft at 2:30PM Sep 25, 2023Observed: 10.29 ft at 2:45PM Sep 25, 2023Observed: 10.19 ft at 3:00PM Sep 25, 2023Observed: 10.14 ft at 3:15PM Sep 25, 2023Observed: 10.24 ft at 3:30PM Sep 25, 2023Observed: 10.13 ft at 3:45PM Sep 25, 2023Observed: 10.08 ft at 4:00PM Sep 25, 2023Observed: 10.19 ft at 4:15PM Sep 25, 2023Observed: 10.06 ft at 4:30PM Sep 25, 2023Observed: 10.06 ft at 4:45PM Sep 25, 2023Observed: 10.13 ft at 5:00PM Sep 25, 2023Observed: 10 ft at 5:15PM Sep 25, 2023Observed: 10.01 ft at 5:30PM Sep 25, 2023Observed: 10.05 ft at 5:45PM Sep 25, 2023Observed: 9.97 ft at 6:00PM Sep 25, 2023Observed: 9.99 ft at 6:15PM Sep 25, 2023Observed: 9.99 ft at 6:30PM Sep 25, 2023Observed: 9.94 ft at 6:45PM Sep 25, 2023Observed: 9.94 ft at 7:00PM Sep 25, 2023Observed: 9.93 ft at 7:15PM Sep 25, 2023Observed: 9.89 ft at 7:30PM Sep 25, 2023Observed: 9.89 ft at 7:45PM Sep 25, 2023Observed: 9.88 ft at 8:00PM Sep 25, 2023Observed: 9.83 ft at 8:15PM Sep 25, 2023Observed: 9.85 ft at 8:30PM Sep 25, 2023Observed: 9.84 ft at 8:45PM Sep 25, 2023Observed: 9.8 ft at 9:00PM Sep 25, 2023Observed: 9.77 ft at 9:15PM Sep 25, 2023Observed: 9.8 ft at 9:30PM Sep 25, 2023Observed: 9.75 ft at 9:45PM Sep 25, 2023Observed: 9.73 ft at 10:00PM Sep 25, 2023Observed: 9.74 ft at 10:15PM Sep 25, 2023Observed: 9.71 ft at 10:30PM Sep 25, 2023Observed: 9.68 ft at 10:45PM Sep 25, 2023Observed: 9.68 ft at 11:00PM Sep 25, 2023Observed: 9.67 ft at 11:15PM Sep 25, 2023Observed: 9.65 ft at 11:30PM Sep 25, 2023Observed: 9.65 ft at 11:45PM Sep 25, 2023Observed: 9.62 ft at 12:00AM Sep 26, 2023Observed: 9.6 ft at 12:15AM Sep 26, 2023Observed: 9.59 ft at 12:30AM Sep 26, 2023Observed: 9.57 ft at 12:45AM Sep 26, 2023Observed: 9.56 ft at 1:00AM Sep 26, 2023Observed: 9.55 ft at 1:15AM Sep 26, 2023Observed: 9.52 ft at 1:30AM Sep 26, 2023Observed: 9.51 ft at 1:45AM Sep 26, 2023Observed: 9.5 ft at 2:00AM Sep 26, 2023Observed: 9.47 ft at 2:15AM Sep 26, 2023Observed: 9.49 ft at 2:30AM Sep 26, 2023Observed: 9.46 ft at 2:45AM Sep 26, 2023Observed: 9.43 ft at 3:00AM Sep 26, 2023Observed: 9.43 ft at 3:15AM Sep 26, 2023Observed: 9.41 ft at 3:30AM Sep 26, 2023Observed: 9.4 ft at 3:45AM Sep 26, 2023Observed: 9.4 ft at 4:00AM Sep 26, 2023Observed: 9.31 ft at 5:15AM Sep 26, 2023Observed: 9.32 ft at 5:30AM Sep 26, 2023Observed: 9.29 ft at 5:45AM Sep 26, 2023Observed: 9.26 ft at 6:00AM Sep 26, 2023Observed: 9.19 ft at 6:15AM Sep 26, 2023Observed: 9.35 ft at 6:30AM Sep 26, 2023Observed: 9.33 ft at 6:45AM Sep 26, 2023Observed: 9.21 ft at 7:00AM Sep 26, 2023Observed: 9.34 ft at 7:15AM Sep 26, 2023Observed: 9.33 ft at 7:30AM Sep 26, 2023Observed: 9.23 ft at 7:45AM Sep 26, 2023Observed: 9.33 ft at 8:00AM Sep 26, 2023Observed: 9.33 ft at 8:15AM Sep 26, 2023Observed: 9.26 ft at 8:30AM Sep 26, 2023Observed: 9.33 ft at 8:45AM Sep 26, 2023Observed: 9.34 ft at 9:00AM Sep 26, 2023Observed: 9.28 ft at 9:15AM Sep 26, 2023Observed: 9.34 ft at 9:30AM Sep 26, 2023Observed: 9.35 ft at 9:45AM Sep 26, 2023Observed: 9.3 ft at 10:00AM Sep 26, 2023Observed: 9.36 ft at 10:15AM Sep 26, 2023Observed: 9.37 ft at 10:30AM Sep 26, 2023Observed: 9.33 ft at 10:45AM Sep 26, 2023Observed: 9.37 ft at 11:00AM Sep 26, 2023Observed: 9.38 ft at 11:15AM Sep 26, 2023Observed: 9.35 ft at 11:30AM Sep 26, 2023Observed: 9.38 ft at 11:45AM Sep 26, 2023Observed: 9.4 ft at 12:00PM Sep 26, 2023Observed: 9.36 ft at 12:15PM Sep 26, 2023Observed: 9.39 ft at 12:30PM Sep 26, 2023Observed: 9.41 ft at 12:45PM Sep 26, 2023Observed: 9.39 ft at 1:00PM Sep 26, 2023Observed: 9.41 ft at 1:15PM Sep 26, 2023Observed: 9.42 ft at 1:30PM Sep 26, 2023Observed: 9.4 ft at 1:45PM Sep 26, 2023Observed: 9.43 ft at 2:00PM Sep 26, 2023Observed: 9.43 ft at 2:15PM Sep 26, 2023Observed: 9.43 ft at 2:30PM Sep 26, 2023Observed: 9.45 ft at 2:45PM Sep 26, 2023Observed: 9.44 ft at 3:00PM Sep 26, 2023Observed: 9.44 ft at 3:15PM Sep 26, 2023Observed: 9.46 ft at 3:30PM Sep 26, 2023Observed: 9.46 ft at 3:45PM Sep 26, 2023Observed: 9.46 ft at 4:00PM Sep 26, 2023Observed: 9.48 ft at 4:15PM Sep 26, 2023Observed: 9.48 ft at 4:30PM Sep 26, 2023Observed: 9.48 ft at 4:45PM Sep 26, 2023Observed: 9.48 ft at 5:00PM Sep 26, 2023Observed: 9.49 ft at 5:15PM Sep 26, 2023Observed: 9.49 ft at 5:30PM Sep 26, 2023Observed: 9.5 ft at 5:45PM Sep 26, 2023Observed: 9.51 ft at 6:00PM Sep 26, 2023Observed: 9.52 ft at 6:15PM Sep 26, 2023Observed: 9.53 ft at 6:30PM Sep 26, 2023Observed: 9.52 ft at 6:45PM Sep 26, 2023Observed: 9.52 ft at 7:00PM Sep 26, 2023Observed: 9.54 ft at 7:15PM Sep 26, 2023Observed: 9.54 ft at 7:30PM Sep 26, 2023Observed: 9.54 ft at 7:45PM Sep 26, 2023Observed: 9.54 ft at 8:00PM Sep 26, 2023Observed: 9.56 ft at 8:15PM Sep 26, 2023Observed: 9.54 ft at 8:30PM Sep 26, 2023Observed: 9.56 ft at 8:45PM Sep 26, 2023Observed: 9.57 ft at 9:00PM Sep 26, 2023Observed: 9.56 ft at 9:15PM Sep 26, 2023Observed: 9.58 ft at 9:30PM Sep 26, 2023Observed: 9.6 ft at 9:45PM Sep 26, 2023Observed: 9.6 ft at 10:00PM Sep 26, 2023Observed: 9.6 ft at 10:15PM Sep 26, 2023Observed: 9.6 ft at 10:30PM Sep 26, 2023Observed: 9.62 ft at 10:45PM Sep 26, 2023Observed: 9.62 ft at 11:00PM Sep 26, 2023Observed: 9.62 ft at 11:15PM Sep 26, 2023Observed: 9.64 ft at 11:30PM Sep 26, 2023Observed: 9.63 ft at 11:45PM Sep 26, 2023Observed: 9.65 ft at 12:00AM Sep 27, 2023Observed: 9.64 ft at 12:15AM Sep 27, 2023Observed: 9.64 ft at 12:30AM Sep 27, 2023Observed: 9.66 ft at 12:45AM Sep 27, 2023Observed: 9.66 ft at 1:00AM Sep 27, 2023Observed: 9.66 ft at 1:15AM Sep 27, 2023Observed: 9.67 ft at 1:30AM Sep 27, 2023Observed: 9.69 ft at 1:45AM Sep 27, 2023Observed: 9.69 ft at 2:00AM Sep 27, 2023Observed: 9.69 ft at 2:15AM Sep 27, 2023Observed: 9.71 ft at 2:30AM Sep 27, 2023Observed: 9.7 ft at 2:45AM Sep 27, 2023Observed: 9.71 ft at 3:00AM Sep 27, 2023Observed: 9.72 ft at 3:15AM Sep 27, 2023Observed: 9.72 ft at 3:30AM Sep 27, 2023Observed: 9.73 ft at 3:45AM Sep 27, 2023Observed: 9.74 ft at 4:00AM Sep 27, 2023Observed: 9.74 ft at 4:15AM Sep 27, 2023Observed: 9.76 ft at 4:30AM Sep 27, 2023Observed: 9.76 ft at 4:45AM Sep 27, 2023Observed: 9.77 ft at 5:00AM Sep 27, 2023Observed: 9.76 ft at 5:15AM Sep 27, 2023Observed: 9.78 ft at 5:30AM Sep 27, 2023Observed: 9.78 ft at 5:45AM Sep 27, 2023Observed: 9.79 ft at 6:00AM Sep 27, 2023Observed: 9.79 ft at 6:15AM Sep 27, 2023Observed: 9.79 ft at 6:30AM Sep 27, 2023Observed: 9.81 ft at 6:45AM Sep 27, 2023Observed: 9.81 ft at 7:00AM Sep 27, 2023Observed: 9.82 ft at 7:15AM Sep 27, 2023Observed: 9.83 ft at 7:30AM Sep 27, 2023Observed: 9.84 ft at 7:45AM Sep 27, 2023Observed: 9.82 ft at 8:00AM Sep 27, 2023Observed: 9.83 ft at 8:15AM Sep 27, 2023Observed: 9.85 ft at 8:30AM Sep 27, 2023Observed: 9.82 ft at 8:45AM Sep 27, 2023Observed: 9.82 ft at 9:00AM Sep 27, 2023Observed: 9.93 ft at 9:15AM Sep 27, 2023Observed: 9.85 ft at 9:30AM Sep 27, 2023Observed: 9.95 ft at 9:45AM Sep 27, 2023Observed: 10.03 ft at 10:00AM Sep 27, 2023MGTW2(plotting HTIRG) Graph Created (11:18AM Sep 27, 2023)ObservedLatest observed value: 10.03 ft at 10:00 AM EDT 27-Sep-2023.
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Tabular Data (UTC)
Tabular Data (EDT)
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Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Monongahela River at Hilderbrand Lock and Dam. Only observed stages are available for this point.
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Upstream Gauge - at Opekiska Lock and Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Morgantown Lock and Dam
Flood Categories (in feet)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:15
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 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.
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35 Lock walls overtopped.
28 Navigation suspended, lock out of service.
About This Location Collapse

Latitude: 39.581667° N, Longitude: 80.010833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 825.58 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 800.8 ft 800.8 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
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Pittsburgh Weather Forecast Office
192 Shafer Road
Moon Township, PA 15108
(412) 262-1591
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