Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Navigation Bar End Cap

  
 

This probabilistic forecast is issued by the Middle Atlantic River Forecast Center.
tab left off Hydrograph tab right off tab left off River at a Glance tab right off tab left off Download tab right off tab left off Inundation
Mapping
tab right off tab left on tab right on
Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey
About this graph
Forecasts for the Susquehanna River at Sunbury are issued routinely year-round.

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 Danville Upstream Gauge Downstream Gauge Downstream Gauge - at Harrisburg
Zoom Level:13
Flood Categories (in feet)
Major Flood Stage: 34
Moderate Flood Stage: 26
Flood Stage: 24
Action Stage: 20
Low Stage (in feet): 0

Historic Crests
(1) 35.80 ft on 06/24/1972
(2) 31.66 ft on 09/09/2011
(3) 30.62 ft on 09/27/1975
(4) 30.44 ft on 09/19/2004
(5) 30.32 ft on 01/20/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 21.17 ft on 09/12/2018
(2) 21.73 ft on 08/15/2018
(3) 22.16 ft on 07/26/2018
(4) 31.66 ft on 09/09/2011
(5) 25.58 ft on 04/29/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 4.83 ft on 10/16/1971
(2) 5.16 ft on 08/06/1983
(3) 5.60 ft on 09/30/1980
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
35 Widespread catastrophic flooding occurs in areas outside the flood wall and levee system. This is the design height of the flood protection works anround Sunbury.
34 Most areas adjacent to the river, which are not protected by the flood wall and levee system, are affected by high water. Catasrophic flooding occurs in some of these areas.
32 Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.
30 Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.
28 Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.
26 High water affects a number of homes and businesses in areas not protected by the flood wall and levee system.
24 Both banks overflow. Areas not protected by the flood wall and levee system are affected.
22 River interests are encouraged to monitor conditions for further rises.
20 River interests are encouraged to monitor conditions for further rises. Shikellamy State Park closed due to high water.
Photos
(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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:30 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities