Rivers in Pennsylvania
Swatara Creek at Middletown
Below flood stage
3.56ftStage
Observed Wed, Sep 23, 11:15 PM EDT
- Flood stage
- 11.00 ft
- Forecast crest
- 3.50 ftThu, Sep 24, 2:00 AM EDT
- Record crest
- 23.29 ft2011
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 18.00 ft |
| Moderate flood | 15.00 ft |
| Minor flood | 11.00 ft |
| Action | 10.00 ft |
- 23.29 ftFlood of Record. Level of flooding associated with the remnants of Tropical Storm Lee on September 9 2011.
- 20.00 ftWidespread flooding of structures...including the trailer park at Harborton Place and Caravan Court.
- 18.00 ftWidespread flooding occurs. Numerous homes are affected by high water. Route 230 is affected. Flooding begins in the vicinity of Hoffer Park.
- 15.00 ftFlooding begins in the vicinity of Few Avenue and near the community swimming pool.
- 12.00 ftBoth banks overflow upstream of the Vine Street Bridge and several basements are affected.
- 11.00 ftMinor overbank flooding begins near the Vine Street Bridge downstream to the Susquehanna River.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 25% |
| Moderate flooding | 9% |
| Major flooding | 6% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
16 crests on NOAA’s list since 2008.
| # | Date | Stage |
|---|---|---|
| 1 | September 9, 2011 | 23.29 ft |
| 2 | March 12, 2011 | 16.36 ft |
| 3 | July 26, 2018 | 16.19 ft |
| 4 | December 26, 2020 | 13.68 ft |
| 5 | September 3, 2021 | 13.46 ft |
| 6 | February 5, 2022 | 13.37 ft |
| 7 | March 8, 2011 | 12.67 ft |
| 8 | April 18, 2011 | 12.63 ft |
| 9 | April 5, 2024 | 12.57 ft |
| 10 | February 23, 2026 | 12.46 ft |
| 11 | January 14, 2014 | 11.81 ft |
| 12 | September 12, 2018 | 11.76 ft |
| 13 | December 19, 2023 | 11.05 ft |
| 14 | November 24, 2011 | 9.97 ft |
| 15 | October 2, 2010 | 8.87 ft |
| 16 | December 13, 2008 | 8.61 ft |
Most recent crests
- February 23, 2026: 12.46 ft
- April 5, 2024: 12.57 ft
- December 19, 2023: 11.05 ft
- February 5, 2022: 13.37 ft
- September 3, 2021: 13.46 ft
- December 26, 2020: 13.68 ft
- September 12, 2018: 11.76 ft
- July 26, 2018: 16.19 ft
- January 14, 2014: 11.81 ft
- November 24, 2011: 9.97 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Middle Atlantic River Forecast Center. Forecasts are issued routinely year-round. Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.