River Conditions
Illustrated map of Susquehanna River

River stage

Sunbury, Susquehanna River

River level
7.93 ft
Status
Below flood stage
7-day change
+0.92 ft
Recent high
12.08 ft
Recent low
6.69 ft

Last reported 2026-10-13 | NWS SBYP1

30-day change
-0.11 ft
Average
7.91 ft
Readings
122
Data span
122 days
Record crest
35.80 ft

In brief

The Susquehanna River at Sunbury, PA read 7.93 ft on Oct 13, 2026, 12.07 ft below action stage. That is 0.11 ft lower than 30 days earlier.

Source: National Weather Service gauge SBYP1

River level timeline

6.37.17.98.79.6SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 9.20LOW 6.698.06 ftLAST READING

Stage threshold profile

Action stage 20.00 ftMinor flooding 24.00 ftModerate flooding 26.00 ftMajor flooding 34.00 ft CURRENT 7.93 ft

Highest crests on record

RankCrestDate
1 35.80 ft 1972-06-24
2 31.66 ft 2011-09-09
3 30.62 ft 1975-09-27
4 30.44 ft 2004-09-19
5 30.32 ft 1996-01-20
6 27.52 ft 1979-03-07
7 27.30 ft 1943-01-01
8 27.20 ft 1960-04-02

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 20.00 ft

    River interests are encouraged to monitor conditions for further rises. Shikellamy State Park closed due to high water.

  2. 22.00 ft

    River interests are encouraged to monitor conditions for further rises.

  3. 24.00 ft

    Both banks overflow. Areas not protected by the flood wall and levee system are affected.

  4. 26.00 ft

    High water affects a number of homes and businesses in areas not protected by the flood wall and levee system.

  5. 28.00 ft

    Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.

  6. 30.00 ft

    Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.

  7. 32.00 ft

    Widespread flooding occurs in areas not protected by the flood wall and levee system. Many homes and businesses are affected.

  8. 34.00 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.

  9. 35.00 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.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Susquehanna River flooding at Sunbury?

No. The Susquehanna River at Sunbury is at 7.93 ft, 12.07 ft below action stage.

What is the flood stage at Sunbury?

The National Weather Service sets action stage 20 ft, minor flooding 24 ft, moderate flooding 26 ft and major flooding 34 ft.

What is the highest the Susquehanna River has been at Sunbury?

The highest crest on record is 35.8 ft, on 1972-06-24.

Is the Susquehanna River high or low right now at Sunbury?

At 7.93 ft it is higher than 61% of readings over the last 122 days.

Stage and flood information from the NOAA National Weather Service (gauge SBYP1); daily history from the U.S. Geological Survey (site 01554000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.