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Hydrograph River at a Glance Download
Monongahela River at Charleroi Lock and Dam Tailwater (ft)Flow (kcfs)Observed: 13.7 ft at 2:00PM Dec 18, 2014Observed: 13.7 ft at 3:00PM Dec 18, 2014Highest Observation: 13.8 ft at 4:00PM Dec 18, 2014Highest Observation: 13.8 ft at 5:00PM Dec 18, 2014Highest Observation: 13.8 ft at 6:00PM Dec 18, 2014Highest Observation: 13.8 ft at 7:00PM Dec 18, 2014Highest Observation: 13.8 ft at 8:00PM Dec 18, 2014Observed: 13.7 ft at 9:00PM Dec 18, 2014Observed: 13.7 ft at 10:00PM Dec 18, 2014Observed: 13.7 ft at 11:00PM Dec 18, 2014Observed: 13.6 ft at 12:00AM Dec 19, 2014Observed: 13.6 ft at 1:00AM Dec 19, 2014Observed: 13.6 ft at 2:00AM Dec 19, 2014Observed: 13.6 ft at 3:00AM Dec 19, 2014Observed: 13.6 ft at 4:00AM Dec 19, 2014Observed: 13.6 ft at 5:00AM Dec 19, 2014Observed: 13.6 ft at 6:00AM Dec 19, 2014Observed: 13.6 ft at 7:00AM Dec 19, 2014Observed: 13.6 ft at 8:00AM Dec 19, 2014Observed: 13.6 ft at 9:00AM Dec 19, 2014Observed: 13.6 ft at 10:00AM Dec 19, 2014Observed: 13.5 ft at 11:00AM Dec 19, 2014Observed: 13.5 ft at 12:00PM Dec 19, 2014Observed: 13.5 ft at 1:00PM Dec 19, 2014Observed: 13.3 ft at 2:00PM Dec 19, 2014Observed: 13.3 ft at 3:00PM Dec 19, 2014Observed: 13.2 ft at 4:00PM Dec 19, 2014Observed: 13.2 ft at 5:00PM Dec 19, 2014Observed: 13.2 ft at 6:00PM Dec 19, 2014Observed: 13.2 ft at 7:00PM Dec 19, 2014Observed: 13.2 ft at 8:00PM Dec 19, 2014Observed: 13.2 ft at 9:00PM Dec 19, 2014Observed: 13.2 ft at 10:00PM Dec 19, 2014Observed: 13.2 ft at 11:00PM Dec 19, 2014Observed: 13.1 ft at 12:00AM Dec 20, 2014Observed: 13.1 ft at 1:00AM Dec 20, 2014Observed: 13.1 ft at 2:00AM Dec 20, 2014Observed: 13.1 ft at 3:00AM Dec 20, 2014Observed: 13 ft at 4:00AM Dec 20, 2014Observed: 12.9 ft at 5:00AM Dec 20, 2014Observed: 12.8 ft at 6:00AM Dec 20, 2014Observed: 12.5 ft at 7:00AM Dec 20, 2014Observed: 12.4 ft at 8:00AM Dec 20, 2014Observed: 12.1 ft at 9:00AM Dec 20, 2014Observed: 12 ft at 10:00AM Dec 20, 2014Observed: 11.8 ft at 11:00AM Dec 20, 2014Observed: 11.7 ft at 12:00PM Dec 20, 2014Observed: 11.6 ft at 1:00PM Dec 20, 2014Observed: 11.5 ft at 2:00PM Dec 20, 2014Observed: 11.4 ft at 3:00PM Dec 20, 2014Observed: 11.3 ft at 4:00PM Dec 20, 2014Observed: 11.2 ft at 5:00PM Dec 20, 2014Observed: 11.1 ft at 6:00PM Dec 20, 2014Observed: 10.1 ft at 7:00PM Dec 20, 2014Observed: 10.2 ft at 7:30PM Dec 20, 2014Observed: 10.3 ft at 8:00PM Dec 20, 2014Observed: 10.4 ft at 8:30PM Dec 20, 2014Observed: 11.4 ft at 9:00PM Dec 20, 2014Observed: 11.6 ft at 9:30PM Dec 20, 2014Observed: 11.7 ft at 10:00PM Dec 20, 2014Observed: 11.9 ft at 11:00PM Dec 20, 2014Observed: 12 ft at 12:00AM Dec 21, 2014Observed: 12.1 ft at 1:00AM Dec 21, 2014Observed: 12.2 ft at 2:00AM Dec 21, 2014Observed: 12.3 ft at 3:00AM Dec 21, 2014Observed: 12.3 ft at 4:00AM Dec 21, 2014Observed: 12.2 ft at 5:00AM Dec 21, 2014Observed: 13.2 ft at 6:00AM Dec 21, 2014Observed: 12.2 ft at 7:00AM Dec 21, 2014Observed: 12.1 ft at 8:00AM Dec 21, 2014Observed: 11.9 ft at 9:00AM Dec 21, 2014Observed: 11.7 ft at 10:00AM Dec 21, 2014Forecast: 12 ft 7:00PM Dec 21, 2014Highest Forecast: 12.9 ft 1:00AM Dec 22, 2014Forecast: 11.9 ft 7:00AM Dec 22, 2014Forecast: 11.4 ft 1:00PM Dec 22, 2014Forecast: 11.7 ft 7:00PM Dec 22, 2014Forecast: 12.5 ft 1:00AM Dec 23, 2014Forecast: 11.6 ft 7:00AM Dec 23, 2014Forecast: 11.2 ft 1:00PM Dec 23, 2014Forecast: 11.4 ft 7:00PM Dec 23, 2014Forecast: 12.2 ft 1:00AM Dec 24, 2014Forecast: 11.4 ft 7:00AM Dec 24, 2014Forecast: 11 ft 1:00PM Dec 24, 2014Forecast: 11.3 ft 7:00PM Dec 24, 2014Forecast: 12 ft 1:00AM Dec 25, 2014Forecast: 11.2 ft 7:00AM Dec 25, 2014Forecast: 10.9 ft 1:00PM Dec 25, 2014Forecast: 11.1 ft 7:00PM Dec 25, 2014Forecast: 11.8 ft 1:00AM Dec 26, 2014Forecast: 11.1 ft 7:00AM Dec 26, 2014CHRP1(plotting HTIRZ) Graph Created (1:01PM Dec 21, 2014)ObservedForecast (issued 8:45AM Dec 21)Latest observed value: 11.7 ft at 10:00 AM EST 21-Dec-2014. Flood Stage is 28 ft
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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 Charleroi Lock and Dam are issued routinely year-round.

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Upstream Gauge - at Maxwell Lock and Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Elizabeth Lock and Dam
Flood Categories (in feet)
Major Flood Stage: 35
Moderate Flood Stage: 31
Flood Stage: 28
Action Stage: 22.6
Low Stage (in feet): 0

Historic Crests
(1) 42.70 ft on 11/05/1985
(2) 41.10 ft on 03/09/1967
(3) 39.90 ft on 03/18/1936
(4) 39.80 ft on 01/20/1996
(5) 39.40 ft on 03/05/1963
(6) 39.20 ft on 06/04/1941
(7) 38.50 ft on 02/19/2000
(8) 38.00 ft on 10/16/1954
(9) 37.20 ft on 08/06/1956
(10) 36.10 ft on 03/28/1963
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 29.30 ft on 01/26/2010
(2) 27.43 ft on 06/05/2008
(3) 31.92 ft on 12/14/2007
(4) 28.08 ft on 03/29/2005
(5) 27.50 ft on 01/12/2005
(6) 28.50 ft on 01/06/2005
(7) 26.30 ft on 09/18/2004
(8) 28.70 ft on 04/14/2004
(9) 27.30 ft on 03/07/2004
(10) 30.20 ft on 02/07/2004
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.00 ft on 01/01/1980

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:15
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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
37 50 homes are flooded in Roscoe. Flooding also occurs in the towns of Elko, Allenport, and Stockdale
36 Several homes are flooded on Lynn Street in Roscoe
35 Backwater flooding in Monongahela along Pigeon Creek causes flood waters up to 4.5 feet in businesses in the lowest building in Penos Plaza and up to 6 feet in Armstrong Park. Backwater flooding spreads upstream along Pigeon Creek to the Route 43 overpass on Park Avenue.
34.1 Division of American Chain and Cable Co. In Monessen floods.
33 Flooding is widspread in Fayette City
32 Flooding occurs on Connellsville, Fourth, Cook, and Main Streets in Fayette City
31.6 Lock walls overtopped.
30 Backwater flooding along Pigeon Creek in Monongahela, begins to flood the lowest building in Penos Plaza, Armstrong Park, and closes Wall Street Bridge across Pigeon Creek.
29 Navigation suspended, lock out of service.
28 In Monongahela, backwater flooding along Pigeon Creek begins from the intersection of Park Way and Park Avenue.
26 Route 201 in closed due to flooding along Donner's Run
About This Location Collapse

Latitude: 40.149444° N, Longitude: 79.901667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 28 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 29 717.900024414062 ft 745.900024414062 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
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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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