Missouri River at Sioux City, IA
Is Missouri River at Sioux City, IA flooding right now?
Missouri River at Sioux City, IA measured 10.71 ft on 2026-10-27 19:00:00 UTC. That observation was 19.3 ft below its 30 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
10.71 ft
Streamflow
26,500 cfs
Minor flooding here begins at 30 ft, with major flooding at 36 ft. The highest crest on record was 35.25 ft on Thu, Jul 21, 2011.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 25 ft | 14.3 ft below |
| Minor flood | 30 ft | 19.3 ft below |
| Moderate flood | 33 ft | 22.3 ft below |
| Major flood | 36 ft | 25.3 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 35.25 ft | 2011-07-21 |
| 32.23 ft | 2024-06-24 |
| 30.77 ft | 1984-06-25 |
| 30.65 ft | 1971-02-19 |
| 30.52 ft | 1960-04-03 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Perry Creek at 38th Street at Sioux City, IA | 3.4 mi | Woodbury County |
| Big Sioux River at Sioux City, IA | 4.3 mi | Woodbury County |
| Floyd River at James, IA | 8.1 mi | Plymouth County |
| Perry Creek near Hinton, IA | 9.4 mi | Plymouth County |
| Big Sioux River near Jefferson, SD | 11.0 mi | Union County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.