Major Flood
34 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
26 ft
Minor Flood
24 ft
Action Stage
20 ft
What Floods at Each Level
35 ft
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 ft
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 ft
Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.
30 ft
Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.
28 ft
Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.
26 ft
High water affects a number of homes and businesses in areas not protected by the flood wall and levee system.
24 ft
Both banks overflow. Areas not protected by the flood wall and levee system are affected.
22 ft
River interests are encouraged to monitor conditions for further rises.
20 ft
River interests are encouraged to monitor conditions for further rises. Shikellamy State Park closed due to high water.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 23, 1972 | 35.8 ft | 620,000 cfs |
| Sep 8, 2011 | 31.66 ft | 462,800 cfs |
| Sep 26, 1975 | 30.62 ft | 439,000 cfs |
Flood Inundation Map
NOAA has mapped what areas flood at different water levels for this gauge. View the interactive flood inundation map →
About This Gauge
USGS Site
NWS LID
SBYP1
River
Susquehanna River
County
Snyder, PA
Coordinates
40.8344°N, 76.8269°W
Get Flood Alerts for Susquehanna River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Susquehanna River at Sunbury?
The Susquehanna River at Sunbury gauge is maintained by USGS (site 01554000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Susquehanna River at Sunbury?
The NWS-defined flood stage for Susquehanna River at Sunbury is 24 feet. Action stage begins at 20 feet. Moderate flooding starts at 26 feet, and major flooding at 34 feet.
How do I get alerts when Susquehanna River rises?
Download StormCast free on Google Play, go to River Gauges, and add Susquehanna River at Sunbury to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Susquehanna River at Sunbury gauge located?
The gauge is located in Snyder County, Pennsylvania at coordinates 40.8344°N, 76.8269°W. USGS site number: 01554000. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.