Perry Creek at Sioux City
Observed Mon, Sep 28, 5:00 AM CDT
- Flood stage
- 24.00 ft
- Record crest
- 30.50 ft1944
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 28.00 ft |
| Moderate flood | 26.00 ft |
| Minor flood | 24.00 ft |
| Action | 20.00 ft |
- 29.00 ftThe 38th St bridge is overtopped.
- 28.00 ftThe north levee near Hamilton and Stone Park Blvd is overtopped and residential areas near 38th begin to flood.
- 27.00 ftThe bridge on Stone Park Blvd may be overtopped.
- 26.50 ftStructures between Hamilton and Stone Park Blvd may be in danger of flooding should levee protection fail and some backyards near 38th St may begin to flood.
- 26.00 ftFlooding begins to affect Dearborn Street between 38th Street and Stone Park Boulevard.
- 24.50 ftWater reaches the bottom of the bridge on Stone Park Blvd
- 24.00 ftThe wooded area north of Country Club Blvd is flooded.
- 16.00 ftThe lowest portions of the bike trail under Hamilton Blvd begin to flood.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.
Crest history
73 crests on NOAA’s list since 1939.
| # | Date | Stage |
|---|---|---|
| 1 | July 7, 1944 | 30.50 ft |
| 2 | May 19, 1990 | 28.54 ft |
| 3 | September 10, 1949 | 26.80 ft |
| 4 | June 17, 2014 | 25.04 ft |
| 5 | March 13, 2019 | 22.85 ft |
| 6 | July 12, 1950 | 22.75 ft |
| 7 | July 7, 1952 | 22.40 ft |
| 8 | June 19, 1951 | 22.38 ft |
| 9 | July 30, 2010 | 19.44 ft |
| 10 | July 9, 1955 | 19.40 ft |
| 11 | April 23, 1985 | 19.20 ft |
| 12 | August 14, 1948 | 19.12 ft |
| 13 | June 19, 1954 | 18.75 ft |
| 14 | June 2, 1963 | 18.60 ft |
| 15 | March 27, 1962 | 18.27 ft |
| 16 | June 14, 1961 | 18.20 ft |
| 17 | June 20, 1984 | 18.16 ft |
| 18 | April 1, 1960 | 18.05 ft |
| 19 | February 8, 1966 | 18.00 ft |
| 20 | July 18, 1989 | 17.93 ft |
| 21 | June 1, 1991 | 17.88 ft |
| 22 | June 7, 1953 | 17.56 ft |
| 23 | June 4, 1940 | 17.30 ft |
| 24 | May 30, 1959 | 17.14 ft |
| 25 | February 18, 1994 | 16.92 ft |
Most recent crests
- July 30, 2025: 13.60 ft
- May 7, 2024: 8.84 ft
- February 27, 2023: 9.78 ft
- July 7, 2022: 8.03 ft
- August 26, 2021: 8.27 ft
- July 6, 2020: 8.58 ft
- March 13, 2019: 22.85 ft
- June 25, 2018: 14.37 ft
- October 6, 2017: 10.34 ft
- May 24, 2016: 9.20 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. Gauge reading may be affected by 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.