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Hydrograph River at a Glance Download Inundation
Mapping
Susquehanna River at Sunbury Stage (ft)Flow (kcfs)Highest Observation: 10.86 ft at 7:15AM Apr 06, 2020Highest Observation: 10.86 ft at 7:30AM Apr 06, 2020Observed: 10.85 ft at 7:45AM Apr 06, 2020Observed: 10.85 ft at 8:00AM Apr 06, 2020Observed: 10.85 ft at 8:15AM Apr 06, 2020Observed: 10.84 ft at 8:30AM Apr 06, 2020Observed: 10.84 ft at 8:45AM Apr 06, 2020Observed: 10.84 ft at 9:00AM Apr 06, 2020Observed: 10.83 ft at 9:15AM Apr 06, 2020Observed: 10.83 ft at 9:30AM Apr 06, 2020Observed: 10.83 ft at 9:45AM Apr 06, 2020Observed: 10.8 ft at 12:00PM Apr 06, 2020Observed: 10.8 ft at 12:15PM Apr 06, 2020Observed: 10.79 ft at 12:30PM Apr 06, 2020Observed: 10.79 ft at 12:45PM Apr 06, 2020Observed: 10.78 ft at 1:00PM Apr 06, 2020Observed: 10.78 ft at 1:15PM Apr 06, 2020Observed: 10.78 ft at 1:30PM Apr 06, 2020Observed: 10.77 ft at 1:45PM Apr 06, 2020Observed: 10.77 ft at 2:00PM Apr 06, 2020Observed: 10.77 ft at 2:15PM Apr 06, 2020Observed: 10.76 ft at 2:30PM Apr 06, 2020Observed: 10.76 ft at 2:45PM Apr 06, 2020Observed: 10.76 ft at 3:00PM Apr 06, 2020Observed: 10.76 ft at 3:15PM Apr 06, 2020Observed: 10.75 ft at 3:30PM Apr 06, 2020Observed: 10.75 ft at 3:45PM Apr 06, 2020Observed: 10.75 ft at 4:00PM Apr 06, 2020Observed: 10.74 ft at 4:15PM Apr 06, 2020Observed: 10.74 ft at 4:30PM Apr 06, 2020Observed: 10.74 ft at 4:45PM Apr 06, 2020Observed: 10.73 ft at 5:00PM Apr 06, 2020Observed: 10.73 ft at 5:15PM Apr 06, 2020Observed: 10.73 ft at 5:30PM Apr 06, 2020Observed: 10.72 ft at 5:45PM Apr 06, 2020Observed: 10.72 ft at 6:00PM Apr 06, 2020Observed: 10.72 ft at 6:15PM Apr 06, 2020Observed: 10.71 ft at 6:30PM Apr 06, 2020Observed: 10.71 ft at 6:45PM Apr 06, 2020Observed: 10.71 ft at 7:00PM Apr 06, 2020Observed: 10.71 ft at 7:15PM Apr 06, 2020Observed: 10.7 ft at 7:30PM Apr 06, 2020Observed: 10.7 ft at 7:45PM Apr 06, 2020Observed: 10.7 ft at 8:00PM Apr 06, 2020Observed: 10.7 ft at 8:15PM Apr 06, 2020Observed: 10.69 ft at 8:30PM Apr 06, 2020Observed: 10.69 ft at 8:45PM Apr 06, 2020Observed: 10.69 ft at 9:00PM Apr 06, 2020Observed: 10.68 ft at 9:15PM Apr 06, 2020Observed: 10.68 ft at 9:30PM Apr 06, 2020Observed: 10.68 ft at 9:45PM Apr 06, 2020Observed: 10.68 ft at 10:00PM Apr 06, 2020Observed: 10.67 ft at 10:15PM Apr 06, 2020Observed: 10.67 ft at 10:30PM Apr 06, 2020Observed: 10.67 ft at 10:45PM Apr 06, 2020Observed: 10.66 ft at 11:00PM Apr 06, 2020Observed: 10.66 ft at 11:15PM Apr 06, 2020Observed: 10.66 ft at 11:30PM Apr 06, 2020Observed: 10.65 ft at 11:45PM Apr 06, 2020Observed: 10.65 ft at 12:00AM Apr 07, 2020Observed: 10.65 ft at 12:15AM Apr 07, 2020Observed: 10.64 ft at 12:30AM Apr 07, 2020Observed: 10.64 ft at 12:45AM Apr 07, 2020Observed: 10.64 ft at 1:00AM Apr 07, 2020Observed: 10.63 ft at 1:15AM Apr 07, 2020Observed: 10.63 ft at 1:30AM Apr 07, 2020Observed: 10.63 ft at 1:31AM Apr 07, 2020Observed: 10.63 ft at 1:45AM Apr 07, 2020Observed: 10.62 ft at 2:00AM Apr 07, 2020Observed: 10.62 ft at 2:15AM Apr 07, 2020Observed: 10.62 ft at 2:30AM Apr 07, 2020Observed: 10.61 ft at 2:45AM Apr 07, 2020Observed: 10.61 ft at 3:00AM Apr 07, 2020Observed: 10.61 ft at 3:15AM Apr 07, 2020Observed: 10.6 ft at 3:30AM Apr 07, 2020Observed: 10.6 ft at 3:45AM Apr 07, 2020Observed: 10.6 ft at 4:00AM Apr 07, 2020Observed: 10.59 ft at 4:15AM Apr 07, 2020Observed: 10.59 ft at 4:30AM Apr 07, 2020Observed: 10.59 ft at 4:45AM Apr 07, 2020Observed: 10.58 ft at 5:00AM Apr 07, 2020Observed: 10.58 ft at 5:15AM Apr 07, 2020Observed: 10.58 ft at 5:30AM Apr 07, 2020Observed: 10.57 ft at 5:45AM Apr 07, 2020Observed: 10.57 ft at 6:00AM Apr 07, 2020Observed: 10.57 ft at 6:15AM Apr 07, 2020Observed: 10.56 ft at 6:30AM Apr 07, 2020Observed: 10.56 ft at 6:45AM Apr 07, 2020Observed: 10.56 ft at 7:00AM Apr 07, 2020Observed: 10.55 ft at 7:15AM Apr 07, 2020Observed: 10.55 ft at 7:30AM Apr 07, 2020Observed: 10.55 ft at 7:45AM Apr 07, 2020Observed: 10.55 ft at 8:00AM Apr 07, 2020Observed: 10.54 ft at 8:15AM Apr 07, 2020Observed: 10.54 ft at 8:30AM Apr 07, 2020Observed: 10.54 ft at 8:45AM Apr 07, 2020Observed: 10.53 ft at 9:00AM Apr 07, 2020Observed: 10.53 ft at 9:15AM Apr 07, 2020Observed: 10.53 ft at 9:30AM Apr 07, 2020Observed: 10.52 ft at 9:45AM Apr 07, 2020Observed: 10.52 ft at 10:00AM Apr 07, 2020Observed: 10.52 ft at 10:15AM Apr 07, 2020Observed: 10.51 ft at 10:30AM Apr 07, 2020Observed: 10.51 ft at 10:45AM Apr 07, 2020Observed: 10.51 ft at 11:00AM Apr 07, 2020Observed: 10.51 ft at 11:15AM Apr 07, 2020Observed: 10.51 ft at 11:30AM Apr 07, 2020Observed: 10.5 ft at 11:45AM Apr 07, 2020Observed: 10.5 ft at 12:00PM Apr 07, 2020Observed: 10.49 ft at 12:15PM Apr 07, 2020Observed: 10.49 ft at 12:30PM Apr 07, 2020Observed: 10.49 ft at 12:45PM Apr 07, 2020Observed: 10.49 ft at 1:00PM Apr 07, 2020Observed: 10.48 ft at 1:15PM Apr 07, 2020Observed: 10.48 ft at 1:30PM Apr 07, 2020Observed: 10.48 ft at 1:45PM Apr 07, 2020Observed: 10.47 ft at 2:00PM Apr 07, 2020Observed: 10.47 ft at 2:15PM Apr 07, 2020Observed: 10.47 ft at 2:30PM Apr 07, 2020Observed: 10.46 ft at 2:45PM Apr 07, 2020Observed: 10.46 ft at 3:00PM Apr 07, 2020Observed: 10.46 ft at 3:15PM Apr 07, 2020Observed: 10.45 ft at 3:30PM Apr 07, 2020Observed: 10.45 ft at 3:45PM Apr 07, 2020Observed: 10.45 ft at 4:00PM Apr 07, 2020Observed: 10.44 ft at 4:15PM Apr 07, 2020Observed: 10.44 ft at 4:30PM Apr 07, 2020Observed: 10.44 ft at 4:45PM Apr 07, 2020Observed: 10.44 ft at 5:00PM Apr 07, 2020Observed: 10.43 ft at 5:15PM Apr 07, 2020Observed: 10.43 ft at 5:30PM Apr 07, 2020Observed: 10.43 ft at 5:45PM Apr 07, 2020Observed: 10.43 ft at 6:00PM Apr 07, 2020Observed: 10.42 ft at 6:15PM Apr 07, 2020Observed: 10.42 ft at 6:30PM Apr 07, 2020Observed: 10.42 ft at 6:45PM Apr 07, 2020Observed: 10.42 ft at 7:00PM Apr 07, 2020Observed: 10.42 ft at 7:15PM Apr 07, 2020Observed: 10.41 ft at 7:30PM Apr 07, 2020Observed: 10.41 ft at 7:45PM Apr 07, 2020Observed: 10.41 ft at 8:00PM Apr 07, 2020Observed: 10.41 ft at 8:15PM Apr 07, 2020Observed: 10.4 ft at 8:30PM Apr 07, 2020Observed: 10.4 ft at 8:45PM Apr 07, 2020Observed: 10.4 ft at 9:00PM Apr 07, 2020Observed: 10.39 ft at 9:15PM Apr 07, 2020Observed: 10.39 ft at 9:30PM Apr 07, 2020Observed: 10.39 ft at 9:45PM Apr 07, 2020Observed: 10.38 ft at 10:00PM Apr 07, 2020Observed: 10.38 ft at 10:15PM Apr 07, 2020Observed: 10.38 ft at 10:30PM Apr 07, 2020Observed: 10.37 ft at 10:45PM Apr 07, 2020Observed: 10.37 ft at 11:00PM Apr 07, 2020Observed: 10.37 ft at 11:15PM Apr 07, 2020Observed: 10.36 ft at 11:30PM Apr 07, 2020Observed: 10.36 ft at 11:45PM Apr 07, 2020Observed: 10.36 ft at 12:00AM Apr 08, 2020Observed: 10.36 ft at 12:15AM Apr 08, 2020Observed: 10.35 ft at 12:30AM Apr 08, 2020Observed: 10.35 ft at 12:45AM Apr 08, 2020Observed: 10.34 ft at 1:00AM Apr 08, 2020Observed: 10.34 ft at 1:15AM Apr 08, 2020Observed: 10.34 ft at 1:30AM Apr 08, 2020Observed: 10.34 ft at 1:31AM Apr 08, 2020Observed: 10.33 ft at 1:45AM Apr 08, 2020Observed: 10.33 ft at 2:00AM Apr 08, 2020Observed: 10.33 ft at 2:15AM Apr 08, 2020Observed: 10.34 ft at 2:30AM Apr 08, 2020Observed: 10.34 ft at 2:45AM Apr 08, 2020Observed: 10.35 ft at 3:00AM Apr 08, 2020Observed: 10.35 ft at 3:15AM Apr 08, 2020Observed: 10.35 ft at 3:30AM Apr 08, 2020Observed: 10.34 ft at 3:45AM Apr 08, 2020Observed: 10.34 ft at 4:00AM Apr 08, 2020Observed: 10.34 ft at 4:15AM Apr 08, 2020Observed: 10.34 ft at 4:30AM Apr 08, 2020Observed: 10.33 ft at 4:45AM Apr 08, 2020Observed: 10.33 ft at 5:00AM Apr 08, 2020Observed: 10.33 ft at 5:15AM Apr 08, 2020Observed: 10.33 ft at 5:30AM Apr 08, 2020Observed: 10.33 ft at 5:45AM Apr 08, 2020Observed: 10.33 ft at 6:00AM Apr 08, 2020Observed: 10.32 ft at 6:15AM Apr 08, 2020Observed: 10.32 ft at 6:30AM Apr 08, 2020Observed: 10.32 ft at 6:45AM Apr 08, 2020Observed: 10.32 ft at 7:00AM Apr 08, 2020Observed: 10.31 ft at 7:15AM Apr 08, 2020Observed: 10.31 ft at 7:30AM Apr 08, 2020Observed: 10.31 ft at 7:45AM Apr 08, 2020Observed: 10.31 ft at 8:00AM Apr 08, 2020Observed: 10.31 ft at 8:15AM Apr 08, 2020Observed: 10.31 ft at 8:30AM Apr 08, 2020Observed: 10.31 ft at 8:45AM Apr 08, 2020Observed: 10.31 ft at 9:00AM Apr 08, 2020Observed: 10.3 ft at 9:15AM Apr 08, 2020Observed: 10.3 ft at 9:30AM Apr 08, 2020Observed: 10.3 ft at 9:45AM Apr 08, 2020Observed: 10.3 ft at 10:00AM Apr 08, 2020Observed: 10.3 ft at 10:15AM Apr 08, 2020Observed: 10.3 ft at 10:30AM Apr 08, 2020Observed: 10.3 ft at 10:45AM Apr 08, 2020Observed: 10.3 ft at 11:00AM Apr 08, 2020Observed: 10.3 ft at 11:15AM Apr 08, 2020Observed: 10.31 ft at 11:30AM Apr 08, 2020Observed: 10.31 ft at 11:45AM Apr 08, 2020Observed: 10.31 ft at 12:00PM Apr 08, 2020Observed: 10.31 ft at 12:15PM Apr 08, 2020Observed: 10.31 ft at 12:30PM Apr 08, 2020Observed: 10.32 ft at 12:45PM Apr 08, 2020Observed: 10.32 ft at 1:00PM Apr 08, 2020Observed: 10.32 ft at 1:15PM Apr 08, 2020Observed: 10.32 ft at 1:30PM Apr 08, 2020Observed: 10.32 ft at 1:45PM Apr 08, 2020Observed: 10.32 ft at 2:00PM Apr 08, 2020Observed: 10.32 ft at 2:15PM Apr 08, 2020Observed: 10.32 ft at 2:30PM Apr 08, 2020Observed: 10.32 ft at 2:45PM Apr 08, 2020Observed: 10.33 ft at 3:00PM Apr 08, 2020Observed: 10.33 ft at 3:15PM Apr 08, 2020Observed: 10.33 ft at 3:30PM Apr 08, 2020Observed: 10.34 ft at 3:45PM Apr 08, 2020Observed: 10.34 ft at 4:00PM Apr 08, 2020Observed: 10.34 ft at 4:15PM Apr 08, 2020Observed: 10.34 ft at 4:30PM Apr 08, 2020Observed: 10.35 ft at 4:45PM Apr 08, 2020Observed: 10.36 ft at 5:00PM Apr 08, 2020Observed: 10.36 ft at 5:15PM Apr 08, 2020Observed: 10.36 ft at 5:30PM Apr 08, 2020Observed: 10.37 ft at 5:45PM Apr 08, 2020Observed: 10.37 ft at 6:00PM Apr 08, 2020Observed: 10.37 ft at 6:15PM Apr 08, 2020Observed: 10.37 ft at 6:30PM Apr 08, 2020Observed: 10.37 ft at 6:45PM Apr 08, 2020Observed: 10.37 ft at 7:00PM Apr 08, 2020Observed: 10.38 ft at 7:15PM Apr 08, 2020Observed: 10.38 ft at 7:30PM Apr 08, 2020Observed: 10.38 ft at 7:45PM Apr 08, 2020Observed: 10.38 ft at 8:00PM Apr 08, 2020Observed: 10.38 ft at 8:15PM Apr 08, 2020Observed: 10.38 ft at 8:30PM Apr 08, 2020Observed: 10.38 ft at 8:45PM Apr 08, 2020Observed: 10.39 ft at 9:00PM Apr 08, 2020Observed: 10.39 ft at 9:15PM Apr 08, 2020Observed: 10.39 ft at 9:30PM Apr 08, 2020Observed: 10.39 ft at 9:45PM Apr 08, 2020Observed: 10.39 ft at 10:00PM Apr 08, 2020Observed: 10.38 ft at 10:15PM Apr 08, 2020Observed: 10.38 ft at 10:30PM Apr 08, 2020Observed: 10.38 ft at 10:45PM Apr 08, 2020Observed: 10.38 ft at 11:00PM Apr 08, 2020Observed: 10.38 ft at 11:15PM Apr 08, 2020Observed: 10.38 ft at 11:30PM Apr 08, 2020Observed: 10.38 ft at 11:45PM Apr 08, 2020Observed: 10.37 ft at 12:00AM Apr 09, 2020Observed: 10.37 ft at 12:15AM Apr 09, 2020Observed: 10.37 ft at 12:30AM Apr 09, 2020Observed: 10.37 ft at 12:45AM Apr 09, 2020Observed: 10.36 ft at 1:00AM Apr 09, 2020Observed: 10.36 ft at 1:15AM Apr 09, 2020Observed: 10.36 ft at 1:30AM Apr 09, 2020Observed: 10.36 ft at 1:31AM Apr 09, 2020Observed: 10.35 ft at 1:45AM Apr 09, 2020Observed: 10.35 ft at 2:00AM Apr 09, 2020Observed: 10.34 ft at 2:15AM Apr 09, 2020Observed: 10.34 ft at 2:30AM Apr 09, 2020Observed: 10.34 ft at 2:45AM Apr 09, 2020Observed: 10.33 ft at 3:00AM Apr 09, 2020Observed: 10.33 ft at 3:15AM Apr 09, 2020Observed: 10.33 ft at 3:30AM Apr 09, 2020Observed: 10.32 ft at 3:45AM Apr 09, 2020Observed: 10.32 ft at 4:00AM Apr 09, 2020Observed: 10.31 ft at 4:15AM Apr 09, 2020Observed: 10.31 ft at 4:30AM Apr 09, 2020Observed: 10.3 ft at 4:45AM Apr 09, 2020Observed: 10.3 ft at 5:00AM Apr 09, 2020Observed: 10.3 ft at 5:15AM Apr 09, 2020Observed: 10.29 ft at 5:30AM Apr 09, 2020Observed: 10.29 ft at 5:45AM Apr 09, 2020Forecast: 10.5 ft 8:00AM Apr 09, 2020Forecast: 10.4 ft 2:00PM Apr 09, 2020Forecast: 10.4 ft 8:00PM Apr 09, 2020Forecast: 10.5 ft 2:00AM Apr 10, 2020Forecast: 10.7 ft 8:00AM Apr 10, 2020Forecast: 11.1 ft 2:00PM Apr 10, 2020Forecast: 11.3 ft 8:00PM Apr 10, 2020Forecast: 11.5 ft 2:00AM Apr 11, 2020Forecast: 11.6 ft 8:00AM Apr 11, 2020Highest Forecast: 11.7 ft 2:00PM Apr 11, 2020USGS--Water Resources of the United StatesSBYP1(plotting HGIRG) Graph Created (7:02AM Apr 9, 2020)ObservedForecast (issued 3:17PM Apr 8)Latest observed value: 10.29 ft at 5:45 AM EDT 9-Apr-2020. Flood Stage is 24 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Susquehanna River at Sunbury are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Danville Upstream Gauge Downstream Gauge Downstream Gauge - at Harrisburg
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

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:13
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. Shilellimy State Park closed due to high water.
Photos
(1) looking upstream
(2) view of the gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 40.834444° N, Longitude: 76.826944° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 24 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 408.61 432.61 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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Page last modified: 1-Mar-2019 12:35 AM
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