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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.

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Hydrograph River at a Glance Download
Allegheny River at Warren Stage (ft)Flow (kcfs)Observed: 3.04 ft at 6:00PM May 30, 2023Observed: 3.04 ft at 6:15PM May 30, 2023Observed: 3.03 ft at 6:30PM May 30, 2023Observed: 3.03 ft at 6:45PM May 30, 2023Observed: 3.03 ft at 7:00PM May 30, 2023Observed: 3.03 ft at 7:15PM May 30, 2023Observed: 3.03 ft at 7:30PM May 30, 2023Observed: 3.03 ft at 7:45PM May 30, 2023Observed: 3.04 ft at 8:00PM May 30, 2023Observed: 3.04 ft at 8:15PM May 30, 2023Observed: 3.03 ft at 8:30PM May 30, 2023Observed: 3.04 ft at 8:45PM May 30, 2023Observed: 3.04 ft at 9:00PM May 30, 2023Observed: 3.04 ft at 9:15PM May 30, 2023Observed: 3.03 ft at 9:30PM May 30, 2023Observed: 3.04 ft at 9:45PM May 30, 2023Observed: 3.04 ft at 10:00PM May 30, 2023Observed: 3.04 ft at 10:15PM May 30, 2023Observed: 3.04 ft at 10:30PM May 30, 2023Observed: 3.05 ft at 10:45PM May 30, 2023Observed: 3.04 ft at 11:00PM May 30, 2023Observed: 3.04 ft at 11:15PM May 30, 2023Observed: 3.05 ft at 11:30PM May 30, 2023Observed: 3.03 ft at 11:45PM May 30, 2023Observed: 3.04 ft at 12:00AM May 31, 2023Observed: 3.03 ft at 12:15AM May 31, 2023Observed: 3.03 ft at 12:30AM May 31, 2023Observed: 3.05 ft at 12:45AM May 31, 2023Observed: 3.03 ft at 1:00AM May 31, 2023Observed: 3.05 ft at 1:15AM May 31, 2023Observed: 3.05 ft at 1:30AM May 31, 2023Observed: 3.02 ft at 1:45AM May 31, 2023Observed: 3.04 ft at 2:00AM May 31, 2023Observed: 3.04 ft at 2:15AM May 31, 2023Observed: 3.04 ft at 2:30AM May 31, 2023Observed: 3.06 ft at 2:45AM May 31, 2023Observed: 3.07 ft at 3:00AM May 31, 2023Observed: 3.07 ft at 3:15AM May 31, 2023Observed: 3.08 ft at 3:30AM May 31, 2023Observed: 3.06 ft at 3:45AM May 31, 2023Observed: 3.04 ft at 4:00AM May 31, 2023Observed: 3.09 ft at 4:15AM May 31, 2023Observed: 3.09 ft at 4:30AM May 31, 2023Observed: 3.05 ft at 4:45AM May 31, 2023Observed: 3.04 ft at 5:00AM May 31, 2023Observed: 3.06 ft at 6:15AM May 31, 2023Observed: 3.06 ft at 6:30AM May 31, 2023Observed: 3.03 ft at 6:45AM May 31, 2023Observed: 3.07 ft at 7:00AM May 31, 2023Observed: 3.04 ft at 7:15AM May 31, 2023Observed: 3.06 ft at 7:30AM May 31, 2023Observed: 3.05 ft at 7:45AM May 31, 2023Observed: 3.04 ft at 8:00AM May 31, 2023Observed: 3.13 ft at 8:15AM May 31, 2023Observed: 3.08 ft at 8:30AM May 31, 2023Observed: 3.07 ft at 8:45AM May 31, 2023Observed: 3.05 ft at 9:00AM May 31, 2023Observed: 3.06 ft at 9:15AM May 31, 2023Observed: 3.06 ft at 9:30AM May 31, 2023Observed: 3.04 ft at 9:45AM May 31, 2023Observed: 3.04 ft at 10:00AM May 31, 2023Observed: 3.04 ft at 10:15AM May 31, 2023Observed: 3.06 ft at 10:30AM May 31, 2023Observed: 3.05 ft at 10:45AM May 31, 2023Observed: 3.04 ft at 11:00AM May 31, 2023Observed: 3.05 ft at 11:15AM May 31, 2023Observed: 3.05 ft at 11:30AM May 31, 2023Observed: 3.04 ft at 11:45AM May 31, 2023Observed: 3.05 ft at 12:00PM May 31, 2023Observed: 3.06 ft at 12:15PM May 31, 2023Observed: 3.05 ft at 12:30PM May 31, 2023Observed: 3.04 ft at 12:45PM May 31, 2023Observed: 3.06 ft at 1:00PM May 31, 2023Observed: 3.04 ft at 1:15PM May 31, 2023Observed: 3.11 ft at 1:30PM May 31, 2023Observed: 3.1 ft at 1:45PM May 31, 2023Observed: 3.09 ft at 2:00PM May 31, 2023Observed: 3.15 ft at 2:15PM May 31, 2023Observed: 3.15 ft at 2:30PM May 31, 2023Observed: 3.2 ft at 2:45PM May 31, 2023Observed: 3.25 ft at 3:00PM May 31, 2023Observed: 3.26 ft at 3:15PM May 31, 2023Observed: 3.27 ft at 3:30PM May 31, 2023Observed: 3.28 ft at 3:45PM May 31, 2023Observed: 3.28 ft at 4:00PM May 31, 2023Highest Observation: 3.31 ft at 4:15PM May 31, 2023Observed: 3.24 ft at 4:30PM May 31, 2023Observed: 3.3 ft at 4:45PM May 31, 2023Observed: 3.23 ft at 5:00PM May 31, 2023Observed: 3.15 ft at 5:15PM May 31, 2023Observed: 3.14 ft at 5:30PM May 31, 2023Observed: 3.11 ft at 5:45PM May 31, 2023Observed: 3.09 ft at 6:00PM May 31, 2023Observed: 3.12 ft at 6:15PM May 31, 2023Observed: 3.15 ft at 6:30PM May 31, 2023Observed: 3.17 ft at 6:45PM May 31, 2023Observed: 3.12 ft at 7:00PM May 31, 2023Observed: 3.14 ft at 7:15PM May 31, 2023Observed: 3.12 ft at 7:30PM May 31, 2023Observed: 3.11 ft at 7:45PM May 31, 2023Observed: 3.13 ft at 8:00PM May 31, 2023Observed: 3.09 ft at 8:15PM May 31, 2023Observed: 3.08 ft at 8:30PM May 31, 2023Observed: 3.09 ft at 8:45PM May 31, 2023Observed: 3.14 ft at 9:00PM May 31, 2023Observed: 3.08 ft at 9:15PM May 31, 2023Observed: 3.14 ft at 9:30PM May 31, 2023Observed: 3.06 ft at 9:45PM May 31, 2023Observed: 3.09 ft at 10:00PM May 31, 2023Observed: 3.07 ft at 10:15PM May 31, 2023Observed: 3.08 ft at 10:30PM May 31, 2023Observed: 3.06 ft at 10:45PM May 31, 2023Observed: 3.04 ft at 11:00PM May 31, 2023Observed: 3.03 ft at 11:15PM May 31, 2023Observed: 3.01 ft at 11:30PM May 31, 2023Observed: 3.04 ft at 11:45PM May 31, 2023Observed: 3.05 ft at 12:00AM Jun 01, 2023Observed: 3.02 ft at 12:15AM Jun 01, 2023Observed: 3.02 ft at 12:30AM Jun 01, 2023Observed: 3.08 ft at 12:45AM Jun 01, 2023Observed: 3.08 ft at 1:00AM Jun 01, 2023Observed: 3.07 ft at 1:15AM Jun 01, 2023Observed: 3.03 ft at 1:30AM Jun 01, 2023Observed: 3.05 ft at 1:45AM Jun 01, 2023Observed: 3.04 ft at 2:00AM Jun 01, 2023Observed: 3.07 ft at 2:15AM Jun 01, 2023Observed: 3.07 ft at 2:30AM Jun 01, 2023Observed: 3.08 ft at 2:45AM Jun 01, 2023Observed: 3.09 ft at 3:00AM Jun 01, 2023Observed: 3.09 ft at 3:15AM Jun 01, 2023Observed: 3.05 ft at 3:30AM Jun 01, 2023Observed: 3.06 ft at 3:45AM Jun 01, 2023Observed: 3.06 ft at 4:00AM Jun 01, 2023Observed: 3.09 ft at 4:15AM Jun 01, 2023Observed: 3.1 ft at 4:30AM Jun 01, 2023Observed: 3.05 ft at 4:45AM Jun 01, 2023Observed: 3.02 ft at 5:00AM Jun 01, 2023Observed: 3.03 ft at 5:15AM Jun 01, 2023Observed: 3.03 ft at 5:30AM Jun 01, 2023Observed: 3.05 ft at 5:45AM Jun 01, 2023Observed: 3.11 ft at 6:00AM Jun 01, 2023Observed: 3.07 ft at 6:15AM Jun 01, 2023Observed: 3.18 ft at 6:30AM Jun 01, 2023Observed: 3.09 ft at 6:45AM Jun 01, 2023Observed: 3.13 ft at 7:00AM Jun 01, 2023Observed: 3.14 ft at 7:15AM Jun 01, 2023Observed: 3.11 ft at 7:30AM Jun 01, 2023Observed: 3.1 ft at 7:45AM Jun 01, 2023Observed: 3.06 ft at 8:00AM Jun 01, 2023Observed: 3.05 ft at 8:15AM Jun 01, 2023Observed: 3.05 ft at 8:30AM Jun 01, 2023Observed: 3.05 ft at 8:45AM Jun 01, 2023Observed: 3.04 ft at 9:00AM Jun 01, 2023Observed: 3.05 ft at 9:15AM Jun 01, 2023Observed: 3.05 ft at 9:30AM Jun 01, 2023Observed: 3.05 ft at 9:45AM Jun 01, 2023Observed: 3.05 ft at 10:00AM Jun 01, 2023Observed: 3.05 ft at 10:15AM Jun 01, 2023Observed: 3.05 ft at 10:30AM Jun 01, 2023Observed: 3.05 ft at 10:45AM Jun 01, 2023Observed: 3.05 ft at 11:00AM Jun 01, 2023Observed: 3.05 ft at 11:15AM Jun 01, 2023Observed: 3.1 ft at 11:30AM Jun 01, 2023Observed: 3.05 ft at 11:45AM Jun 01, 2023Observed: 3.05 ft at 12:00PM Jun 01, 2023Observed: 3.09 ft at 12:15PM Jun 01, 2023Observed: 3.11 ft at 12:30PM Jun 01, 2023Observed: 3.11 ft at 12:45PM Jun 01, 2023Observed: 3.12 ft at 1:00PM Jun 01, 2023Observed: 3.18 ft at 1:15PM Jun 01, 2023Observed: 3.16 ft at 1:30PM Jun 01, 2023Observed: 3.23 ft at 1:45PM Jun 01, 2023Observed: 3.22 ft at 2:00PM Jun 01, 2023Observed: 3.24 ft at 2:15PM Jun 01, 2023Observed: 3.2 ft at 2:30PM Jun 01, 2023Observed: 3.25 ft at 2:45PM Jun 01, 2023Observed: 3.22 ft at 3:00PM Jun 01, 2023Observed: 3.25 ft at 3:15PM Jun 01, 2023Observed: 3.2 ft at 3:30PM Jun 01, 2023Observed: 3.22 ft at 3:45PM Jun 01, 2023Observed: 3.22 ft at 4:00PM Jun 01, 2023Observed: 3.19 ft at 4:15PM Jun 01, 2023Observed: 3.17 ft at 4:30PM Jun 01, 2023Observed: 3.17 ft at 4:45PM Jun 01, 2023Observed: 3.19 ft at 5:00PM Jun 01, 2023Observed: 3.2 ft at 5:15PM Jun 01, 2023Observed: 3.23 ft at 5:30PM Jun 01, 2023Observed: 3.19 ft at 5:45PM Jun 01, 2023Observed: 3.2 ft at 6:00PM Jun 01, 2023Observed: 3.21 ft at 6:15PM Jun 01, 2023Observed: 3.23 ft at 6:30PM Jun 01, 2023Observed: 3.24 ft at 6:45PM Jun 01, 2023Observed: 3.21 ft at 7:00PM Jun 01, 2023Observed: 3.24 ft at 7:15PM Jun 01, 2023Observed: 3.17 ft at 7:30PM Jun 01, 2023Observed: 3.23 ft at 7:45PM Jun 01, 2023Observed: 3.23 ft at 8:00PM Jun 01, 2023Observed: 3.18 ft at 8:15PM Jun 01, 2023Observed: 3.24 ft at 8:30PM Jun 01, 2023Observed: 3.24 ft at 8:45PM Jun 01, 2023Observed: 3.19 ft at 9:00PM Jun 01, 2023Observed: 3.2 ft at 9:15PM Jun 01, 2023Observed: 3.25 ft at 9:30PM Jun 01, 2023Observed: 3.23 ft at 9:45PM Jun 01, 2023Observed: 3.22 ft at 10:00PM Jun 01, 2023Observed: 3.26 ft at 10:15PM Jun 01, 2023Observed: 3.17 ft at 10:30PM Jun 01, 2023Observed: 3.22 ft at 10:45PM Jun 01, 2023Observed: 3.24 ft at 11:00PM Jun 01, 2023Observed: 3.27 ft at 11:15PM Jun 01, 2023Observed: 3.26 ft at 11:30PM Jun 01, 2023Observed: 3.18 ft at 11:45PM Jun 01, 2023Observed: 3.2 ft at 12:00AM Jun 02, 2023Observed: 3.22 ft at 12:15AM Jun 02, 2023Observed: 3.18 ft at 12:30AM Jun 02, 2023Observed: 3.16 ft at 12:45AM Jun 02, 2023Observed: 3.19 ft at 1:00AM Jun 02, 2023Observed: 3.15 ft at 1:15AM Jun 02, 2023Observed: 3.09 ft at 1:30AM Jun 02, 2023Observed: 3.09 ft at 1:45AM Jun 02, 2023Observed: 3.03 ft at 2:00AM Jun 02, 2023Observed: 3.06 ft at 2:15AM Jun 02, 2023Observed: 3.13 ft at 2:30AM Jun 02, 2023Observed: 3.14 ft at 2:45AM Jun 02, 2023Observed: 3.17 ft at 3:00AM Jun 02, 2023Observed: 3.15 ft at 3:15AM Jun 02, 2023Observed: 3.19 ft at 3:30AM Jun 02, 2023Observed: 3.21 ft at 3:45AM Jun 02, 2023Observed: 3.19 ft at 4:00AM Jun 02, 2023Observed: 3.21 ft at 4:15AM Jun 02, 2023Observed: 3.24 ft at 4:30AM Jun 02, 2023Observed: 3.24 ft at 4:45AM Jun 02, 2023Observed: 3.23 ft at 5:00AM Jun 02, 2023Observed: 3.26 ft at 5:15AM Jun 02, 2023Observed: 3.24 ft at 5:30AM Jun 02, 2023Observed: 3.23 ft at 5:45AM Jun 02, 2023Observed: 3.26 ft at 6:00AM Jun 02, 2023Observed: 3.26 ft at 6:15AM Jun 02, 2023Observed: 3.21 ft at 6:30AM Jun 02, 2023Observed: 3.25 ft at 6:45AM Jun 02, 2023Observed: 3.26 ft at 7:00AM Jun 02, 2023Observed: 3.22 ft at 7:15AM Jun 02, 2023Observed: 3.24 ft at 7:30AM Jun 02, 2023Observed: 3.25 ft at 7:45AM Jun 02, 2023Observed: 3.22 ft at 8:00AM Jun 02, 2023Observed: 3.22 ft at 8:15AM Jun 02, 2023Observed: 3.22 ft at 8:30AM Jun 02, 2023Observed: 3.21 ft at 8:45AM Jun 02, 2023Observed: 3.22 ft at 9:00AM Jun 02, 2023Observed: 3.22 ft at 9:15AM Jun 02, 2023Observed: 3.22 ft at 9:30AM Jun 02, 2023Observed: 3.22 ft at 9:45AM Jun 02, 2023Observed: 3.22 ft at 10:00AM Jun 02, 2023Observed: 3.22 ft at 10:15AM Jun 02, 2023Observed: 3.22 ft at 10:30AM Jun 02, 2023Observed: 3.22 ft at 10:45AM Jun 02, 2023Observed: 3.22 ft at 11:00AM Jun 02, 2023Observed: 3.21 ft at 11:15AM Jun 02, 2023Observed: 3.22 ft at 11:30AM Jun 02, 2023Observed: 3.22 ft at 11:45AM Jun 02, 2023Observed: 3.21 ft at 12:00PM Jun 02, 2023Observed: 3.21 ft at 12:15PM Jun 02, 2023Observed: 3.2 ft at 12:30PM Jun 02, 2023Observed: 3.21 ft at 12:45PM Jun 02, 2023Observed: 3.21 ft at 1:00PM Jun 02, 2023Observed: 3.21 ft at 1:15PM Jun 02, 2023Observed: 3.21 ft at 1:30PM Jun 02, 2023Observed: 3.21 ft at 1:45PM Jun 02, 2023Observed: 3.21 ft at 2:00PM Jun 02, 2023Observed: 3.22 ft at 2:15PM Jun 02, 2023Observed: 3.22 ft at 2:30PM Jun 02, 2023Observed: 3.21 ft at 2:45PM Jun 02, 2023Observed: 3.21 ft at 3:00PM Jun 02, 2023Observed: 3.2 ft at 3:15PM Jun 02, 2023Observed: 3.19 ft at 3:30PM Jun 02, 2023Observed: 3.18 ft at 3:45PM Jun 02, 2023Observed: 3.18 ft at 4:00PM Jun 02, 2023Observed: 3.17 ft at 4:15PM Jun 02, 2023Observed: 3.16 ft at 4:30PM Jun 02, 2023Observed: 3.16 ft at 4:45PM Jun 02, 2023Observed: 3.16 ft at 5:00PM Jun 02, 2023USGS--Water Resources of the United StatesWRRP1(plotting HGIRG) Graph Created (5:48PM Jun 2, 2023)ObservedLatest observed value: 3.16 ft at 5:00 PM EDT 2-Jun-2023. Flood Stage is 14 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Allegheny River at Warren are issued as needed during times of high water, but are not routinely available.

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
Upstream Gauge - at Salamanca Upstream Gauge Downstream Gauge Downstream Gauge - at West Hickory
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 15
Flood Stage: 14
Action Stage: 12
Low Stage (in feet): 0

Historic Crests
(1) 19.40 ft on 03/17/1865
(2) 18.30 ft on 03/08/1956
(3) 17.70 ft on 12/12/1873
(4) 17.20 ft on 03/27/1913
(5) 17.10 ft on 03/22/1948
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.50 ft on 06/24/1972
(2) 14.20 ft on 03/10/1964
(3) 15.00 ft on 03/06/1964
(4) 14.00 ft on 03/27/1963
(5) 14.90 ft on 05/25/1961
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.00 ft on 09/01/1954
(2) 1.00 ft on 10/01/1963
(3) 1.10 ft on 09/01/1952
(4) 1.10 ft on 07/01/1955
(5) 1.10 ft on 09/01/1955
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
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
18 Many homes and businesses on both banks experience catastrophic flooding.
17 Many homes and businesses are affected by high water. The railroad tracks and business Route 6 are flooded. Water affects Warren General Hospital on the left bank.
15 A number of homes and businesses on the right, or north bank are affected by high water. Several streets are closed.
14 The right, or north bank begins to overflow, affecting a few houses and a couple of streets in low lying areas near the river.
Photos
(1) Downstream. 9/12/2022 stage 2.6'
(2) Upstream. 9/12/2022 stage 2.6'
About This Location Collapse

Latitude: 41.843889° N, Longitude: 79.150000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 14 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 1168 1182 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 1169.04 ft 1183.04 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:
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
State College Weather Forecast Office
328 Innovation Boulevard, Suite 330
State College, PA 16803
(814) 231-2408
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