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Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS) at a repurposed https://water.noaa.gov. A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id: https://preview.water.noaa.gov/gauges/SSSSS.

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Allegheny River at Port Allegany Stage (ft)Flow (kcfs)Observed: 3.25 ft at 9:00PM Feb 17, 2024Observed: 3.25 ft at 9:15PM Feb 17, 2024Observed: 3.25 ft at 9:30PM Feb 17, 2024Observed: 3.25 ft at 9:45PM Feb 17, 2024Observed: 3.24 ft at 10:00PM Feb 17, 2024Observed: 3.24 ft at 10:15PM Feb 17, 2024Observed: 3.24 ft at 10:30PM Feb 17, 2024Observed: 3.24 ft at 10:45PM Feb 17, 2024Observed: 3.24 ft at 11:00PM Feb 17, 2024Observed: 3.23 ft at 11:15PM Feb 17, 2024Observed: 3.23 ft at 11:30PM Feb 17, 2024Observed: 3.23 ft at 11:45PM Feb 17, 2024Observed: 3.22 ft at 12:00AM Feb 18, 2024Observed: 3.22 ft at 12:15AM Feb 18, 2024Observed: 3.21 ft at 12:30AM Feb 18, 2024Observed: 3.21 ft at 12:45AM Feb 18, 2024Observed: 3.2 ft at 1:00AM Feb 18, 2024Observed: 3.19 ft at 1:15AM Feb 18, 2024Observed: 3.18 ft at 1:30AM Feb 18, 2024Observed: 3.18 ft at 1:45AM Feb 18, 2024Observed: 3.18 ft at 2:00AM Feb 18, 2024Observed: 3.17 ft at 2:15AM Feb 18, 2024Observed: 3.17 ft at 2:30AM Feb 18, 2024Observed: 3.17 ft at 2:45AM Feb 18, 2024Observed: 3.17 ft at 3:00AM Feb 18, 2024Observed: 3.16 ft at 3:15AM Feb 18, 2024Observed: 3.16 ft at 3:30AM Feb 18, 2024Observed: 3.14 ft at 3:45AM Feb 18, 2024Observed: 3.13 ft at 4:00AM Feb 18, 2024Observed: 3.11 ft at 4:15AM Feb 18, 2024Observed: 3.1 ft at 4:30AM Feb 18, 2024Observed: 3.09 ft at 4:45AM Feb 18, 2024Observed: 3.08 ft at 5:00AM Feb 18, 2024Observed: 3.07 ft at 5:15AM Feb 18, 2024Observed: 3.06 ft at 5:30AM Feb 18, 2024Observed: 3.04 ft at 5:45AM Feb 18, 2024Observed: 3.03 ft at 6:00AM Feb 18, 2024Observed: 2.99 ft at 6:15AM Feb 18, 2024Observed: 2.95 ft at 6:30AM Feb 18, 2024Observed: 2.93 ft at 6:45AM Feb 18, 2024Observed: 2.91 ft at 7:00AM Feb 18, 2024Observed: 2.9 ft at 7:15AM Feb 18, 2024Observed: 2.9 ft at 7:30AM Feb 18, 2024Observed: 2.9 ft at 7:45AM Feb 18, 2024Observed: 2.9 ft at 8:00AM Feb 18, 2024Observed: 2.9 ft at 8:15AM Feb 18, 2024Observed: 2.9 ft at 8:30AM Feb 18, 2024Observed: 2.9 ft at 8:45AM Feb 18, 2024Observed: 2.9 ft at 9:00AM Feb 18, 2024Observed: 2.9 ft at 9:15AM Feb 18, 2024Observed: 2.9 ft at 9:30AM Feb 18, 2024Observed: 2.9 ft at 9:45AM Feb 18, 2024Observed: 2.93 ft at 10:00AM Feb 18, 2024Observed: 2.97 ft at 10:15AM Feb 18, 2024Observed: 3 ft at 10:30AM Feb 18, 2024Observed: 3 ft at 10:45AM Feb 18, 2024Observed: 3 ft at 11:00AM Feb 18, 2024Observed: 3 ft at 11:15AM Feb 18, 2024Observed: 3.02 ft at 11:30AM Feb 18, 2024Observed: 3.04 ft at 11:45AM Feb 18, 2024Observed: 3.07 ft at 12:00PM Feb 18, 2024Observed: 3.11 ft at 12:15PM Feb 18, 2024Observed: 3.15 ft at 12:30PM Feb 18, 2024Observed: 3.17 ft at 12:45PM Feb 18, 2024Observed: 3.19 ft at 1:00PM Feb 18, 2024Observed: 3.2 ft at 1:15PM Feb 18, 2024Observed: 3.21 ft at 1:30PM Feb 18, 2024Observed: 3.21 ft at 1:45PM Feb 18, 2024Observed: 3.22 ft at 2:00PM Feb 18, 2024Observed: 3.23 ft at 2:15PM Feb 18, 2024Observed: 3.24 ft at 2:30PM Feb 18, 2024Observed: 3.25 ft at 2:45PM Feb 18, 2024Observed: 3.27 ft at 3:00PM Feb 18, 2024Observed: 3.28 ft at 3:15PM Feb 18, 2024Observed: 3.29 ft at 3:30PM Feb 18, 2024Observed: 3.31 ft at 3:45PM Feb 18, 2024Observed: 3.32 ft at 4:00PM Feb 18, 2024Observed: 3.33 ft at 4:15PM Feb 18, 2024Observed: 3.34 ft at 4:30PM Feb 18, 2024Highest Observation: 3.35 ft at 4:45PM Feb 18, 2024Highest Observation: 3.35 ft at 5:00PM Feb 18, 2024Highest Observation: 3.35 ft at 5:15PM Feb 18, 2024Highest Observation: 3.35 ft at 5:30PM Feb 18, 2024Observed: 3.34 ft at 5:45PM Feb 18, 2024Observed: 3.34 ft at 6:00PM Feb 18, 2024Observed: 3.32 ft at 6:15PM Feb 18, 2024Observed: 3.31 ft at 6:30PM Feb 18, 2024Observed: 3.3 ft at 6:45PM Feb 18, 2024Observed: 3.3 ft at 7:00PM Feb 18, 2024Observed: 3.29 ft at 7:15PM Feb 18, 2024Observed: 3.28 ft at 7:30PM Feb 18, 2024Observed: 3.27 ft at 7:45PM Feb 18, 2024Observed: 3.27 ft at 8:00PM Feb 18, 2024Observed: 3.26 ft at 8:15PM Feb 18, 2024Observed: 3.26 ft at 8:30PM Feb 18, 2024Observed: 3.25 ft at 8:45PM Feb 18, 2024Observed: 3.25 ft at 9:00PM Feb 18, 2024Observed: 3.25 ft at 9:15PM Feb 18, 2024Observed: 3.24 ft at 9:30PM Feb 18, 2024Observed: 3.24 ft at 9:45PM Feb 18, 2024Observed: 3.24 ft at 10:00PM Feb 18, 2024Observed: 3.24 ft at 10:15PM Feb 18, 2024Observed: 3.23 ft at 10:30PM Feb 18, 2024Observed: 3.23 ft at 10:45PM Feb 18, 2024Observed: 3.24 ft at 11:00PM Feb 18, 2024Observed: 3.24 ft at 11:15PM Feb 18, 2024Observed: 3.24 ft at 11:30PM Feb 18, 2024Observed: 3.24 ft at 11:45PM Feb 18, 2024Observed: 3.24 ft at 12:00AM Feb 19, 2024Observed: 3.23 ft at 12:15AM Feb 19, 2024Observed: 3.23 ft at 12:30AM Feb 19, 2024Observed: 3.23 ft at 12:45AM Feb 19, 2024Observed: 3.23 ft at 1:00AM Feb 19, 2024Observed: 3.22 ft at 1:15AM Feb 19, 2024Observed: 3.22 ft at 1:30AM Feb 19, 2024Observed: 3.22 ft at 1:45AM Feb 19, 2024Observed: 3.21 ft at 2:00AM Feb 19, 2024Observed: 3.21 ft at 2:15AM Feb 19, 2024Observed: 3.21 ft at 2:30AM Feb 19, 2024Observed: 3.2 ft at 2:45AM Feb 19, 2024Observed: 3.2 ft at 3:00AM Feb 19, 2024Observed: 3.19 ft at 3:15AM Feb 19, 2024Observed: 3.19 ft at 3:30AM Feb 19, 2024Observed: 3.19 ft at 3:45AM Feb 19, 2024Observed: 3.18 ft at 4:00AM Feb 19, 2024Observed: 3.18 ft at 4:15AM Feb 19, 2024Observed: 3.18 ft at 4:30AM Feb 19, 2024Observed: 3.17 ft at 4:45AM Feb 19, 2024Observed: 3.17 ft at 5:00AM Feb 19, 2024Observed: 3.17 ft at 5:15AM Feb 19, 2024Observed: 3.16 ft at 5:30AM Feb 19, 2024Observed: 3.16 ft at 5:45AM Feb 19, 2024Observed: 3.16 ft at 6:00AM Feb 19, 2024Observed: 3.16 ft at 6:15AM Feb 19, 2024Observed: 3.16 ft at 6:30AM Feb 19, 2024Observed: 3.15 ft at 6:45AM Feb 19, 2024Observed: 3.15 ft at 7:00AM Feb 19, 2024Observed: 3.15 ft at 7:15AM Feb 19, 2024Observed: 3.15 ft at 7:30AM Feb 19, 2024Observed: 3.14 ft at 7:45AM Feb 19, 2024Observed: 3.14 ft at 8:00AM Feb 19, 2024Observed: 3.14 ft at 8:15AM Feb 19, 2024Observed: 3.14 ft at 8:30AM Feb 19, 2024Observed: 3.13 ft at 8:45AM Feb 19, 2024Observed: 3.13 ft at 9:00AM Feb 19, 2024Observed: 3.13 ft at 9:15AM Feb 19, 2024Observed: 3.13 ft at 9:30AM Feb 19, 2024Observed: 3.13 ft at 9:45AM Feb 19, 2024Observed: 3.12 ft at 10:00AM Feb 19, 2024Observed: 3.12 ft at 10:15AM Feb 19, 2024Observed: 3.12 ft at 10:30AM Feb 19, 2024Observed: 3.12 ft at 10:45AM Feb 19, 2024Observed: 3.12 ft at 11:00AM Feb 19, 2024Observed: 3.12 ft at 11:15AM Feb 19, 2024Observed: 3.12 ft at 11:30AM Feb 19, 2024Observed: 3.12 ft at 11:45AM Feb 19, 2024Observed: 3.12 ft at 12:00PM Feb 19, 2024Observed: 3.11 ft at 12:15PM Feb 19, 2024Observed: 3.11 ft at 12:30PM Feb 19, 2024Observed: 3.11 ft at 12:45PM Feb 19, 2024Observed: 3.11 ft at 1:00PM Feb 19, 2024Observed: 3.11 ft at 1:15PM Feb 19, 2024Observed: 3.11 ft at 1:30PM Feb 19, 2024Observed: 3.11 ft at 1:45PM Feb 19, 2024Observed: 3.11 ft at 2:00PM Feb 19, 2024Observed: 3.11 ft at 2:15PM Feb 19, 2024Observed: 3.1 ft at 2:30PM Feb 19, 2024Observed: 3.1 ft at 2:45PM Feb 19, 2024Observed: 3.1 ft at 3:00PM Feb 19, 2024Observed: 3.1 ft at 3:15PM Feb 19, 2024Observed: 3.1 ft at 3:30PM Feb 19, 2024Observed: 3.1 ft at 3:45PM Feb 19, 2024Observed: 3.1 ft at 4:00PM Feb 19, 2024Observed: 3.1 ft at 4:15PM Feb 19, 2024Observed: 3.1 ft at 4:30PM Feb 19, 2024Observed: 3.1 ft at 4:45PM Feb 19, 2024Observed: 3.1 ft at 5:00PM Feb 19, 2024Observed: 3.1 ft at 5:15PM Feb 19, 2024Observed: 3.1 ft at 5:30PM Feb 19, 2024Observed: 3.1 ft at 5:45PM Feb 19, 2024Observed: 3.09 ft at 6:00PM Feb 19, 2024Observed: 3.1 ft at 6:15PM Feb 19, 2024Observed: 3.1 ft at 6:30PM Feb 19, 2024Observed: 3.1 ft at 6:45PM Feb 19, 2024Observed: 3.1 ft at 7:00PM Feb 19, 2024Observed: 3.09 ft at 7:15PM Feb 19, 2024Observed: 3.09 ft at 7:30PM Feb 19, 2024Observed: 3.09 ft at 7:45PM Feb 19, 2024Observed: 3.09 ft at 8:00PM Feb 19, 2024Observed: 3.09 ft at 8:15PM Feb 19, 2024Observed: 3.09 ft at 8:30PM Feb 19, 2024Observed: 3.09 ft at 8:45PM Feb 19, 2024Observed: 3.09 ft at 9:00PM Feb 19, 2024Observed: 3.09 ft at 9:15PM Feb 19, 2024Observed: 3.09 ft at 9:30PM Feb 19, 2024Observed: 3.09 ft at 9:45PM Feb 19, 2024Observed: 3.08 ft at 10:00PM Feb 19, 2024Observed: 3.08 ft at 10:15PM Feb 19, 2024Observed: 3.08 ft at 10:30PM Feb 19, 2024Observed: 3.08 ft at 10:45PM Feb 19, 2024Observed: 3.08 ft at 11:00PM Feb 19, 2024Observed: 3.07 ft at 11:15PM Feb 19, 2024Observed: 3.07 ft at 11:30PM Feb 19, 2024Observed: 3.07 ft at 11:45PM Feb 19, 2024Observed: 3.07 ft at 12:00AM Feb 20, 2024Observed: 3.07 ft at 12:15AM Feb 20, 2024Observed: 3.07 ft at 12:30AM Feb 20, 2024Observed: 3.07 ft at 12:45AM Feb 20, 2024Observed: 3.06 ft at 1:00AM Feb 20, 2024Observed: 3.06 ft at 1:15AM Feb 20, 2024Observed: 3.06 ft at 1:30AM Feb 20, 2024Observed: 3.06 ft at 1:45AM Feb 20, 2024Observed: 3.05 ft at 2:00AM Feb 20, 2024Observed: 3.04 ft at 2:15AM Feb 20, 2024Observed: 3.04 ft at 2:30AM Feb 20, 2024Observed: 3.03 ft at 2:45AM Feb 20, 2024Observed: 3.02 ft at 3:00AM Feb 20, 2024Observed: 3.02 ft at 3:15AM Feb 20, 2024Observed: 3.01 ft at 3:30AM Feb 20, 2024Observed: 3.01 ft at 3:45AM Feb 20, 2024Observed: 3 ft at 4:00AM Feb 20, 2024Observed: 2.99 ft at 4:15AM Feb 20, 2024Observed: 2.99 ft at 4:30AM Feb 20, 2024Observed: 2.99 ft at 4:45AM Feb 20, 2024Observed: 2.98 ft at 5:00AM Feb 20, 2024Observed: 2.99 ft at 5:15AM Feb 20, 2024Observed: 2.99 ft at 5:30AM Feb 20, 2024Observed: 2.99 ft at 5:45AM Feb 20, 2024Observed: 2.98 ft at 6:00AM Feb 20, 2024Observed: 2.98 ft at 6:15AM Feb 20, 2024Observed: 2.97 ft at 6:30AM Feb 20, 2024Observed: 2.95 ft at 6:45AM Feb 20, 2024Observed: 2.93 ft at 7:00AM Feb 20, 2024Observed: 2.91 ft at 7:15AM Feb 20, 2024Observed: 2.9 ft at 7:30AM Feb 20, 2024Observed: 2.88 ft at 7:45AM Feb 20, 2024Observed: 2.86 ft at 8:00AM Feb 20, 2024Observed: 2.85 ft at 8:15AM Feb 20, 2024Observed: 2.84 ft at 8:30AM Feb 20, 2024Observed: 2.84 ft at 8:45AM Feb 20, 2024Observed: 2.83 ft at 9:00AM Feb 20, 2024Observed: 2.82 ft at 9:15AM Feb 20, 2024Observed: 2.82 ft at 9:30AM Feb 20, 2024Observed: 2.82 ft at 9:45AM Feb 20, 2024Observed: 2.82 ft at 10:00AM Feb 20, 2024Observed: 2.83 ft at 10:15AM Feb 20, 2024Observed: 2.84 ft at 10:30AM Feb 20, 2024Observed: 2.85 ft at 10:45AM Feb 20, 2024Observed: 2.87 ft at 11:00AM Feb 20, 2024Observed: 2.88 ft at 11:15AM Feb 20, 2024Observed: 2.89 ft at 11:30AM Feb 20, 2024Observed: 2.91 ft at 11:45AM Feb 20, 2024Observed: 2.92 ft at 12:00PM Feb 20, 2024Observed: 2.93 ft at 12:15PM Feb 20, 2024Observed: 2.93 ft at 12:30PM Feb 20, 2024Observed: 2.93 ft at 12:45PM Feb 20, 2024Observed: 2.94 ft at 1:00PM Feb 20, 2024Observed: 2.94 ft at 1:15PM Feb 20, 2024Observed: 2.94 ft at 1:30PM Feb 20, 2024Observed: 2.95 ft at 1:45PM Feb 20, 2024Observed: 2.96 ft at 2:00PM Feb 20, 2024Observed: 2.97 ft at 2:15PM Feb 20, 2024Observed: 2.98 ft at 2:30PM Feb 20, 2024Observed: 3 ft at 2:45PM Feb 20, 2024Observed: 3.02 ft at 3:00PM Feb 20, 2024Observed: 3.04 ft at 3:15PM Feb 20, 2024Observed: 3.05 ft at 3:30PM Feb 20, 2024Observed: 3.07 ft at 3:45PM Feb 20, 2024Observed: 3.08 ft at 4:00PM Feb 20, 2024Observed: 3.08 ft at 4:15PM Feb 20, 2024Observed: 3.08 ft at 4:30PM Feb 20, 2024Observed: 3.08 ft at 4:45PM Feb 20, 2024Observed: 3.07 ft at 5:00PM Feb 20, 2024Observed: 3.06 ft at 5:15PM Feb 20, 2024Observed: 3.06 ft at 5:30PM Feb 20, 2024Observed: 3.05 ft at 5:45PM Feb 20, 2024Observed: 3.05 ft at 6:00PM Feb 20, 2024Observed: 3.04 ft at 6:15PM Feb 20, 2024Observed: 3.04 ft at 6:30PM Feb 20, 2024Observed: 3.04 ft at 6:45PM Feb 20, 2024Observed: 3.04 ft at 7:00PM Feb 20, 2024Observed: 3.04 ft at 7:15PM Feb 20, 2024Observed: 3.04 ft at 7:30PM Feb 20, 2024Observed: 3.04 ft at 7:45PM Feb 20, 2024USGS--Water Resources of the United StatesPALP1(plotting HGIRG) Graph Created (8:48PM Feb 20, 2024)ObservedLatest observed value: 3.04 ft at 7:45 PM EST 20-Feb-2024.
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts are not available for the Allegheny River at Port Allegany. Only observed stages are available for this point.

The gage has been converted from NGVD29 to NAVD88 by the USGS. For additional information please visit: https://www.usgs.gov/centers/pennsylvania-water-science-center/updating-pennsylvania-streamgage-datums 

Return to Area Map
Downstream Gauge Downstream Gauge - at Eldred
Flood Categories (in feet)
Not Available

Historic Crests
(1) 17.50 ft on 06/23/1972

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.50 ft on 06/23/1972

(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.
About This Location Collapse

Latitude: 41.818611° N, Longitude: 78.293056° 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 1454.4 Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 1454.88 ft Not Available 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) 7 Day (NAEFS) 7 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.

Click individual graphics to enlarge.

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
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328 Innovation Boulevard, Suite 330
State College, PA 16803
(814) 954-6400
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Page last modified: 2-Nov-2020 7:30 PM
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