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This probabilistic forecast is issued by the Ohio River Forecast Center.
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About this graph
Forecasts for the Allegheny River at Salamanca are issued routinely year-round.
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Upstream Gauge - at Olean Upstream Gauge Downstream Gauge Downstream Gauge - at Warren
Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 14
Flood Stage: 12
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 24.01 ft on 06/23/1972
(2) 16.41 ft on 01/19/1996
(3) 16.24 ft on 09/26/1967
(4) 15.44 ft on 06/23/1989
(5) 15.11 ft on 03/08/1956
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.78 ft on 02/18/2022
(2) 13.43 ft on 01/13/2018
(3) 13.83 ft on 01/13/2017
(4) 14.42 ft on 12/02/2010
(5) 12.29 ft on 01/25/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.68 ft on 08/03/1993
(2) 2.60 ft on 08/15/1996
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Gauge LocationGauge Map Marker
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
21 Major flood, widespread flooding of commercial and residential areas in and around Salamanca. Protective dikes topped at 21 to 22 feet. Dikes located on left bank 0.1 mile upstream to 0.3 mile downstream, and on right bank from 0.1 mile upstream to 0.7 mile downstream and 1.6 to 2.1 miles downstream.
14 Moderate flood, moderate flooding along entire reach in areas unprotected by dikes. More widespread flooding upstream.
12 Flood stage, minor flooding along entire reach in areas unprotected by dikes.
9 Action stage, banks subject to some local overflow 1 to 2 miles upstream. Little or no damage.

Other Real-time and/or Archive Data Sources:

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
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics.

Click individual graphics to enlarge.

Observations courtesy of the U.S. Geological Survey.
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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
National Weather Service
Buffalo Weather Forecast Office
587 Aero Drive
Buffalo, NY 14225-1405
(716) 565-0204
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Page last modified: 2-Nov-2020 7:30 PM
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