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Hydrograph River at a Glance Download
Allegheny River at Rimer Lock and Dam Pool (ft)Flow (kcfs)Observed: 10.48 ft at 2:00AM Mar 23, 2023Observed: 10.49 ft at 2:15AM Mar 23, 2023Observed: 10.49 ft at 2:30AM Mar 23, 2023Observed: 10.5 ft at 2:45AM Mar 23, 2023Observed: 10.51 ft at 3:00AM Mar 23, 2023Observed: 10.51 ft at 3:15AM Mar 23, 2023Observed: 10.52 ft at 3:30AM Mar 23, 2023Observed: 10.53 ft at 3:45AM Mar 23, 2023Observed: 10.53 ft at 4:00AM Mar 23, 2023Observed: 10.54 ft at 4:15AM Mar 23, 2023Observed: 10.55 ft at 4:30AM Mar 23, 2023Observed: 10.55 ft at 4:45AM Mar 23, 2023Observed: 10.55 ft at 5:00AM Mar 23, 2023Observed: 10.56 ft at 5:15AM Mar 23, 2023Observed: 10.57 ft at 5:30AM Mar 23, 2023Observed: 10.57 ft at 5:45AM Mar 23, 2023Observed: 10.57 ft at 6:00AM Mar 23, 2023Observed: 10.57 ft at 6:15AM Mar 23, 2023Observed: 10.58 ft at 6:30AM Mar 23, 2023Observed: 10.58 ft at 6:45AM Mar 23, 2023Observed: 10.59 ft at 7:00AM Mar 23, 2023Observed: 10.59 ft at 7:15AM Mar 23, 2023Observed: 10.59 ft at 7:30AM Mar 23, 2023Observed: 10.59 ft at 7:45AM Mar 23, 2023Observed: 10.59 ft at 8:00AM Mar 23, 2023Observed: 10.59 ft at 8:15AM Mar 23, 2023Observed: 10.59 ft at 8:30AM Mar 23, 2023Observed: 10.59 ft at 8:45AM Mar 23, 2023Observed: 10.59 ft at 9:00AM Mar 23, 2023Observed: 10.59 ft at 9:15AM Mar 23, 2023Observed: 10.59 ft at 9:30AM Mar 23, 2023Observed: 10.59 ft at 9:45AM Mar 23, 2023Observed: 10.59 ft at 10:00AM Mar 23, 2023Observed: 10.59 ft at 10:15AM Mar 23, 2023Observed: 10.59 ft at 10:30AM Mar 23, 2023Observed: 10.58 ft at 10:45AM Mar 23, 2023Observed: 10.58 ft at 11:00AM Mar 23, 2023Observed: 10.57 ft at 11:15AM Mar 23, 2023Observed: 10.57 ft at 11:30AM Mar 23, 2023Observed: 10.56 ft at 11:45AM Mar 23, 2023Observed: 10.55 ft at 12:00PM Mar 23, 2023Observed: 10.55 ft at 12:15PM Mar 23, 2023Observed: 10.53 ft at 12:30PM Mar 23, 2023Observed: 10.53 ft at 12:45PM Mar 23, 2023Observed: 10.52 ft at 1:00PM Mar 23, 2023Observed: 10.51 ft at 1:15PM Mar 23, 2023Observed: 10.51 ft at 1:30PM Mar 23, 2023Observed: 10.5 ft at 1:45PM Mar 23, 2023Observed: 10.5 ft at 2:00PM Mar 23, 2023Observed: 10.49 ft at 2:15PM Mar 23, 2023Observed: 10.49 ft at 2:30PM Mar 23, 2023Observed: 10.49 ft at 2:45PM Mar 23, 2023Observed: 10.49 ft at 3:00PM Mar 23, 2023Observed: 10.49 ft at 3:15PM Mar 23, 2023Observed: 10.49 ft at 3:30PM Mar 23, 2023Observed: 10.49 ft at 3:45PM Mar 23, 2023Observed: 10.49 ft at 4:00PM Mar 23, 2023Observed: 10.49 ft at 4:15PM Mar 23, 2023Observed: 10.5 ft at 4:30PM Mar 23, 2023Observed: 10.51 ft at 4:45PM Mar 23, 2023Observed: 10.52 ft at 5:00PM Mar 23, 2023Observed: 10.54 ft at 5:15PM Mar 23, 2023Observed: 10.57 ft at 5:30PM Mar 23, 2023Observed: 10.59 ft at 5:45PM Mar 23, 2023Observed: 10.62 ft at 6:00PM Mar 23, 2023Observed: 10.65 ft at 6:15PM Mar 23, 2023Observed: 10.69 ft at 6:30PM Mar 23, 2023Observed: 10.72 ft at 6:45PM Mar 23, 2023Observed: 10.77 ft at 7:00PM Mar 23, 2023Observed: 10.81 ft at 7:15PM Mar 23, 2023Observed: 10.84 ft at 7:30PM Mar 23, 2023Observed: 10.88 ft at 7:45PM Mar 23, 2023Observed: 10.92 ft at 8:00PM Mar 23, 2023Observed: 10.95 ft at 8:15PM Mar 23, 2023Observed: 10.99 ft at 8:30PM Mar 23, 2023Observed: 11.02 ft at 8:45PM Mar 23, 2023Observed: 11.05 ft at 9:00PM Mar 23, 2023Observed: 11.07 ft at 9:15PM Mar 23, 2023Observed: 11.09 ft at 9:30PM Mar 23, 2023Observed: 11.11 ft at 9:45PM Mar 23, 2023Observed: 11.13 ft at 10:00PM Mar 23, 2023Observed: 11.15 ft at 10:15PM Mar 23, 2023Observed: 11.17 ft at 10:30PM Mar 23, 2023Observed: 11.18 ft at 10:45PM Mar 23, 2023Observed: 11.19 ft at 11:00PM Mar 23, 2023Observed: 11.2 ft at 11:15PM Mar 23, 2023Observed: 11.21 ft at 11:30PM Mar 23, 2023Observed: 11.22 ft at 11:45PM Mar 23, 2023Observed: 11.23 ft at 12:00AM Mar 24, 2023Observed: 11.24 ft at 12:15AM Mar 24, 2023Observed: 11.24 ft at 12:30AM Mar 24, 2023Observed: 11.25 ft at 12:45AM Mar 24, 2023Observed: 11.25 ft at 1:00AM Mar 24, 2023Observed: 11.26 ft at 1:15AM Mar 24, 2023Observed: 11.27 ft at 1:30AM Mar 24, 2023Observed: 11.27 ft at 1:45AM Mar 24, 2023Observed: 11.27 ft at 2:00AM Mar 24, 2023Observed: 11.28 ft at 2:15AM Mar 24, 2023Observed: 11.29 ft at 2:30AM Mar 24, 2023Observed: 11.3 ft at 2:45AM Mar 24, 2023Observed: 11.31 ft at 3:00AM Mar 24, 2023Observed: 11.33 ft at 3:15AM Mar 24, 2023Observed: 11.34 ft at 3:30AM Mar 24, 2023Observed: 11.36 ft at 3:45AM Mar 24, 2023Observed: 11.37 ft at 4:00AM Mar 24, 2023Observed: 11.39 ft at 4:15AM Mar 24, 2023Observed: 11.41 ft at 4:30AM Mar 24, 2023Observed: 11.43 ft at 4:45AM Mar 24, 2023Observed: 11.45 ft at 5:00AM Mar 24, 2023Observed: 11.47 ft at 5:15AM Mar 24, 2023Observed: 11.49 ft at 5:30AM Mar 24, 2023Observed: 11.5 ft at 5:45AM Mar 24, 2023Observed: 11.52 ft at 6:00AM Mar 24, 2023Observed: 11.54 ft at 6:15AM Mar 24, 2023Observed: 11.55 ft at 6:30AM Mar 24, 2023Observed: 11.57 ft at 6:45AM Mar 24, 2023Observed: 11.58 ft at 7:00AM Mar 24, 2023Observed: 11.59 ft at 7:15AM Mar 24, 2023Observed: 11.61 ft at 7:30AM Mar 24, 2023Observed: 11.61 ft at 7:45AM Mar 24, 2023Observed: 11.62 ft at 8:00AM Mar 24, 2023Observed: 11.63 ft at 8:15AM Mar 24, 2023Observed: 11.63 ft at 8:30AM Mar 24, 2023Observed: 11.63 ft at 8:45AM Mar 24, 2023Observed: 11.63 ft at 9:00AM Mar 24, 2023Observed: 11.63 ft at 9:15AM Mar 24, 2023Observed: 11.63 ft at 9:30AM Mar 24, 2023Observed: 11.63 ft at 9:45AM Mar 24, 2023Observed: 11.63 ft at 10:00AM Mar 24, 2023Observed: 11.62 ft at 10:15AM Mar 24, 2023Observed: 11.61 ft at 10:30AM Mar 24, 2023Observed: 11.61 ft at 10:45AM Mar 24, 2023Observed: 11.6 ft at 11:00AM Mar 24, 2023Observed: 11.59 ft at 11:15AM Mar 24, 2023Observed: 11.58 ft at 11:30AM Mar 24, 2023Observed: 11.57 ft at 11:45AM Mar 24, 2023Observed: 11.55 ft at 12:00PM Mar 24, 2023Observed: 11.54 ft at 12:15PM Mar 24, 2023Observed: 11.53 ft at 12:30PM Mar 24, 2023Observed: 11.52 ft at 12:45PM Mar 24, 2023Observed: 11.51 ft at 1:00PM Mar 24, 2023Observed: 11.49 ft at 1:15PM Mar 24, 2023Observed: 11.48 ft at 1:30PM Mar 24, 2023Observed: 11.47 ft at 1:45PM Mar 24, 2023Observed: 11.46 ft at 2:00PM Mar 24, 2023Observed: 11.45 ft at 2:15PM Mar 24, 2023Observed: 11.44 ft at 2:30PM Mar 24, 2023Observed: 11.43 ft at 2:45PM Mar 24, 2023Observed: 11.43 ft at 3:00PM Mar 24, 2023Observed: 11.42 ft at 3:15PM Mar 24, 2023Observed: 11.42 ft at 3:30PM Mar 24, 2023Observed: 11.42 ft at 3:45PM Mar 24, 2023Observed: 11.42 ft at 4:00PM Mar 24, 2023Observed: 11.42 ft at 4:15PM Mar 24, 2023Observed: 11.42 ft at 4:30PM Mar 24, 2023Observed: 11.43 ft at 4:45PM Mar 24, 2023Observed: 11.43 ft at 5:00PM Mar 24, 2023Observed: 11.43 ft at 5:15PM Mar 24, 2023Observed: 11.44 ft at 5:30PM Mar 24, 2023Observed: 11.44 ft at 5:45PM Mar 24, 2023Observed: 11.45 ft at 6:00PM Mar 24, 2023Observed: 11.45 ft at 6:15PM Mar 24, 2023Observed: 11.46 ft at 6:30PM Mar 24, 2023Observed: 11.46 ft at 6:45PM Mar 24, 2023Observed: 11.47 ft at 7:00PM Mar 24, 2023Observed: 11.47 ft at 7:15PM Mar 24, 2023Observed: 11.48 ft at 7:30PM Mar 24, 2023Observed: 11.48 ft at 7:45PM Mar 24, 2023Observed: 11.49 ft at 8:00PM Mar 24, 2023Observed: 11.49 ft at 8:15PM Mar 24, 2023Observed: 11.5 ft at 8:30PM Mar 24, 2023Observed: 11.5 ft at 8:45PM Mar 24, 2023Observed: 11.51 ft at 9:00PM Mar 24, 2023Observed: 11.51 ft at 9:15PM Mar 24, 2023Observed: 11.51 ft at 9:30PM Mar 24, 2023Observed: 11.51 ft at 9:45PM Mar 24, 2023Observed: 11.52 ft at 10:00PM Mar 24, 2023Observed: 11.52 ft at 10:15PM Mar 24, 2023Observed: 11.52 ft at 10:30PM Mar 24, 2023Observed: 11.53 ft at 10:45PM Mar 24, 2023Observed: 11.53 ft at 11:00PM Mar 24, 2023Observed: 11.53 ft at 11:15PM Mar 24, 2023Observed: 11.53 ft at 11:30PM Mar 24, 2023Observed: 11.53 ft at 11:45PM Mar 24, 2023Observed: 11.53 ft at 12:00AM Mar 25, 2023Observed: 11.53 ft at 12:15AM Mar 25, 2023Observed: 11.53 ft at 12:30AM Mar 25, 2023Observed: 11.53 ft at 12:45AM Mar 25, 2023Observed: 11.53 ft at 1:00AM Mar 25, 2023Observed: 11.53 ft at 1:15AM Mar 25, 2023Observed: 11.53 ft at 1:30AM Mar 25, 2023Observed: 11.53 ft at 1:45AM Mar 25, 2023Observed: 11.53 ft at 2:00AM Mar 25, 2023Observed: 11.53 ft at 2:15AM Mar 25, 2023Observed: 11.53 ft at 2:30AM Mar 25, 2023Observed: 11.53 ft at 2:45AM Mar 25, 2023Observed: 11.53 ft at 3:00AM Mar 25, 2023Observed: 11.53 ft at 3:15AM Mar 25, 2023Observed: 11.53 ft at 3:30AM Mar 25, 2023Observed: 11.53 ft at 3:45AM Mar 25, 2023Observed: 11.53 ft at 4:00AM Mar 25, 2023Observed: 11.53 ft at 4:15AM Mar 25, 2023Observed: 11.53 ft at 4:30AM Mar 25, 2023Observed: 11.52 ft at 4:45AM Mar 25, 2023Observed: 11.52 ft at 5:00AM Mar 25, 2023Observed: 11.52 ft at 5:15AM Mar 25, 2023Observed: 11.52 ft at 5:30AM Mar 25, 2023Observed: 11.52 ft at 5:45AM Mar 25, 2023Observed: 11.51 ft at 6:00AM Mar 25, 2023Observed: 11.51 ft at 6:15AM Mar 25, 2023Observed: 11.51 ft at 6:30AM Mar 25, 2023Observed: 11.51 ft at 6:45AM Mar 25, 2023Observed: 11.51 ft at 7:00AM Mar 25, 2023Observed: 11.51 ft at 7:15AM Mar 25, 2023Observed: 11.51 ft at 7:30AM Mar 25, 2023Observed: 11.51 ft at 7:45AM Mar 25, 2023Observed: 11.51 ft at 8:00AM Mar 25, 2023Observed: 11.51 ft at 8:15AM Mar 25, 2023Observed: 11.51 ft at 8:30AM Mar 25, 2023Observed: 11.5 ft at 8:45AM Mar 25, 2023Observed: 11.5 ft at 9:00AM Mar 25, 2023Observed: 11.49 ft at 9:15AM Mar 25, 2023Observed: 11.49 ft at 9:30AM Mar 25, 2023Observed: 11.49 ft at 9:45AM Mar 25, 2023Observed: 11.48 ft at 10:00AM Mar 25, 2023Observed: 11.47 ft at 10:15AM Mar 25, 2023Observed: 11.46 ft at 10:30AM Mar 25, 2023Observed: 11.45 ft at 10:45AM Mar 25, 2023Observed: 11.45 ft at 11:00AM Mar 25, 2023Observed: 11.43 ft at 11:15AM Mar 25, 2023Observed: 11.43 ft at 11:30AM Mar 25, 2023Observed: 11.41 ft at 11:45AM Mar 25, 2023Observed: 11.4 ft at 12:00PM Mar 25, 2023Observed: 11.39 ft at 12:15PM Mar 25, 2023Observed: 11.38 ft at 12:30PM Mar 25, 2023Observed: 11.37 ft at 12:45PM Mar 25, 2023Observed: 11.36 ft at 1:00PM Mar 25, 2023Observed: 11.35 ft at 1:15PM Mar 25, 2023Observed: 11.35 ft at 1:30PM Mar 25, 2023Observed: 11.34 ft at 1:45PM Mar 25, 2023Observed: 11.33 ft at 2:00PM Mar 25, 2023Observed: 11.33 ft at 2:15PM Mar 25, 2023Observed: 11.32 ft at 2:30PM Mar 25, 2023Observed: 11.32 ft at 2:45PM Mar 25, 2023Observed: 11.32 ft at 3:00PM Mar 25, 2023Observed: 11.32 ft at 3:15PM Mar 25, 2023Observed: 11.33 ft at 3:30PM Mar 25, 2023Observed: 11.33 ft at 3:45PM Mar 25, 2023Observed: 11.35 ft at 4:00PM Mar 25, 2023Observed: 11.36 ft at 4:15PM Mar 25, 2023Observed: 11.37 ft at 4:30PM Mar 25, 2023Observed: 11.4 ft at 4:45PM Mar 25, 2023Observed: 11.42 ft at 5:00PM Mar 25, 2023Observed: 11.44 ft at 5:15PM Mar 25, 2023Observed: 11.47 ft at 5:30PM Mar 25, 2023Observed: 11.49 ft at 5:45PM Mar 25, 2023Observed: 11.51 ft at 6:00PM Mar 25, 2023Observed: 11.54 ft at 6:15PM Mar 25, 2023Observed: 11.57 ft at 6:30PM Mar 25, 2023Observed: 11.59 ft at 6:45PM Mar 25, 2023Observed: 11.62 ft at 7:00PM Mar 25, 2023Observed: 11.65 ft at 7:15PM Mar 25, 2023Observed: 11.67 ft at 7:30PM Mar 25, 2023Observed: 11.7 ft at 7:45PM Mar 25, 2023Observed: 11.73 ft at 8:00PM Mar 25, 2023Observed: 11.75 ft at 8:15PM Mar 25, 2023Observed: 11.77 ft at 8:30PM Mar 25, 2023Observed: 11.8 ft at 8:45PM Mar 25, 2023Observed: 11.82 ft at 9:00PM Mar 25, 2023Observed: 11.85 ft at 9:15PM Mar 25, 2023Observed: 11.87 ft at 9:30PM Mar 25, 2023Observed: 11.9 ft at 9:45PM Mar 25, 2023Observed: 11.92 ft at 10:00PM Mar 25, 2023Observed: 11.95 ft at 10:15PM Mar 25, 2023Observed: 11.97 ft at 10:30PM Mar 25, 2023Observed: 11.99 ft at 10:45PM Mar 25, 2023Observed: 12.01 ft at 11:00PM Mar 25, 2023Observed: 12.04 ft at 11:15PM Mar 25, 2023Observed: 12.06 ft at 11:30PM Mar 25, 2023Observed: 12.08 ft at 11:45PM Mar 25, 2023Observed: 12.11 ft at 12:00AM Mar 26, 2023Observed: 12.13 ft at 12:15AM Mar 26, 2023Observed: 12.15 ft at 12:30AM Mar 26, 2023Observed: 12.17 ft at 12:45AM Mar 26, 2023Highest Observation: 12.19 ft at 1:00AM Mar 26, 2023RMRP1(plotting HPIRG) Graph Created (1:47AM Mar 26, 2023)ObservedLatest observed value: 12.19 ft at 1:00 AM EDT 26-Mar-2023. Flood Stage is 19 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
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: Stage may be affected by ice.

NOTE: Forecasts for the Allegheny River at Rimer Lock and Dam are issued as needed during times of high water, but are not routinely available.

Return to Area Map
Upstream Gauge - at Parker Upstream Gauge Downstream Gauge Downstream Gauge - at Mosgrove Lock and Dam
Flood Categories (in feet)
Major Flood Stage: 23
Moderate Flood Stage: 21
Flood Stage: 19
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 21.80 ft on 01/22/1959
(2) 21.20 ft on 02/14/1966
(3) 20.30 ft on 03/09/1956
(4) 19.80 ft on 06/23/1972
(5) 19.60 ft on 02/17/1976
(6) 19.50 ft on 09/18/2004
(7) 19.50 ft on 01/31/1968
(8) 19.25 ft on 03/15/2007
(9) 18.61 ft on 02/18/2022
(10) 17.76 ft on 02/08/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 18.61 ft on 02/18/2022
(2) 17.76 ft on 02/08/2019
(3) 17.16 ft on 03/02/2018
(4) 16.84 ft on 03/09/2009
(5) 19.25 ft on 03/15/2007
(6) 19.50 ft on 09/18/2004
(7) 16.90 ft on 09/09/2004
(8) 19.60 ft on 02/17/1976
(9) 19.80 ft on 06/23/1972
(10) 19.50 ft on 01/31/1968
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.00 ft on 01/01/1980
Zoom Level:15
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
20 Cottages across the river from the lock flood.
19 Lock walls overtopped.
17 Navigation suspended, lock out of service.
14 Water rises onto a section of armstrong trail above rimer on east bank of river.
About This Location Collapse

Latitude: 40.958333° N, Longitude: 79.547222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 19 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 812.6 831.6 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 813.2 832.2 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:
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 10 Day (NAEFS) 10 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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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