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This probabilistic forecast is issued by the Middle Atlantic River Forecast Center.
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About this graph
Forecasts for the West Branch Susquehanna River at Renovo are issued routinely year-round.
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Upstream Gauge - at Karthaus Upstream Gauge Downstream Gauge Downstream Gauge - at Lock Haven
Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 22
Moderate Flood Stage: 18
Flood Stage: 16
Action Stage: 12
Low Stage (in feet): 0

Historic Crests
(1) 29.39 ft on 03/18/1936
(2) 27.30 ft on 06/01/1889
(3) 26.56 ft on 06/23/1972
(4) 23.00 ft on 05/21/1894
(5) 21.96 ft on 11/26/1950
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 16.11 ft on 09/11/2018
(2) 18.25 ft on 12/01/2010
(3) 21.14 ft on 09/18/2004
(4) 20.73 ft on 01/20/1996
(5) 15.40 ft on 02/15/1984
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.10 ft on 12/06/1908
(2) -1.10 ft on 10/04/1914
(3) -1.00 ft on 09/20/1932
(4) -0.50 ft on 09/18/1964
(5) -0.47 ft on 09/02/1962
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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
36 FEMA 0.2% Annual Chance Flood Level (500-year flood).
29.4 Flood of record from March 1936. Flood waters begin to reach the Fourth Street Bridge.
28 Widespread catastrophic flooding occurs on both banks of the river. The majority of homes and businesses are affected. The area is virtually "cutoff" from communicating with and traveling to the outside world due to flooded roads.
26 Almost 50 percent of Renovo is inundated. The sewage treatment plant is inoperable. Transportation into and out of Renovo are severely limited. Water supply is also affected.
25.5 FEMA 1% Annual Chance Flood Level (100-year flood).
25 The right, or south bank begins to overflow. Widespread flooding occurs along the left bank.
24 Widespread flooding occurs on the left, or north bank, with many homes and businesses affected.
23.5 FEMA 2% Annual Chance Flood Level (50-year flood).
22 Major Flood Stage. Many homes and businesses on the left, or north bank are affected. Many streets are also inundated.
20 A number of homes on the left, or north bank are affected by high water.
18 Moderate Flood Stage. Several homes are inundated to the first floor by high water on the left, or north bank of the river.
17.5 FEMA 10% Annual Chance Flood Level (10-year flood).
16 Minor Flood Stage. The left, or north bank overflows, affecting low lying areas.
(1) looking upstream
(2) view of the gagehouse
(3) looking downstream

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
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.

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) 954-6400
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Page last modified: 2-Nov-2020 7:30 PM
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