River stage
Harrisburg, Susquehanna River
- River level
- 4.84 ft
- Status
- Below flood stage
- 7-day change
- +1.20 ft
- Recent high
- 6.14 ft
- Recent low
- 3.40 ft
Last reported 2026-10-13 | NWS HARP1
- 30-day change
- +0.88 ft
- Average
- 4.01 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 33.27 ft
In brief
The Susquehanna River at Harrisburg, PA read 4.84 ft on Oct 13, 2026, 6.16 ft below action stage. That is 0.88 ft higher than 30 days earlier.
Source: National Weather Service gauge HARP1
Water 63 °F (17 °C) · about normal for this date
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 33.27 ft | 1972-06-24 |
| 2 | 29.23 ft | 1936-03-19 |
| 3 | 26.80 ft | 1889-06-02 |
| 4 | 25.70 ft | 1894-05-22 |
| 5 | 25.17 ft | 2011-09-09 |
| 6 | 25.08 ft | 1996-01-20 |
| 7 | 24.66 ft | 1996-01-21 |
| 8 | 24.40 ft | 2004-09-19 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 11.00 ft
Recreational use of City Island begins to be curtailed. River interests are encouraged to monitor conditions.
- 13.00 ft
The recreation area on City Island is evacuated. River interests are encouraged to monitor conditions.
- 15.00 ft
The recreation area of City Island is evacuated. River interests are encouraged to monitor conditions.
- 17.00 ft
Basements of residences and businesses on both banks flood. The parking lot on City Island begins to take on water.
- 19.00 ft
A number of homes in West Fairview, Dauphin, and Harrisburg flood. Flood waters begin to reach Front Street in East Pennsboro Township in Cumberland County.
- 20.00 ft
Riverfront Park in Harrisburg begins to flood.
- 20.50 ft
FEMA 10% Annual Chance Flood Level (10-year flood).
- 21.00 ft
Homes on both banks are affected by high water. This is the approximate level of Routes 11 and 15, upstream of the Market Street Bridge. Flood waters begin to reach South Main Street in Marysville.
- 22.50 ft
US 22/322 in the vicinity of the Dauphin Narrows is impacted by flood waters.
- 23.00 ft
Evacuations are necessary in the Shipoke area of Harrisburg. Listen to local emergency officials for specific details. The water level reaches the corner of Kelker and Front Streets. Delaware Street, Geiger Street and Maclay Streets may also be impacted.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Susquehanna River flooding at Harrisburg?
No. The Susquehanna River at Harrisburg is at 4.84 ft, 6.16 ft below action stage.
What is the flood stage at Harrisburg?
The National Weather Service sets action stage 11 ft, minor flooding 17 ft, moderate flooding 20 ft and major flooding 23 ft.
What is the highest the Susquehanna River has been at Harrisburg?
The highest crest on record is 33.27 ft, on 1972-06-24.
Is the Susquehanna River high or low right now at Harrisburg?
At 4.84 ft it is higher than 94% of readings over the last 122 days.
How warm is the water at Harrisburg, Susquehanna River?
The water temperature at Harrisburg, Susquehanna River is 63 °F (17.0 °C), measured 3:00 pm by USGS, which is about average for this date over the past ten years. It has risen 0.7 °F in the last 24 hours.
Stage and flood information from the NOAA National Weather Service (gauge HARP1); daily history from the U.S. Geological Survey (site 01570500). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.