Big Sioux River near Hawarden, IA
Is Big Sioux River near Hawarden, IA flooding right now?
Big Sioux River near Hawarden, IA measured 13.01 ft on 2026-09-11 01:30:00 UTC. That observation was 7.5 ft below its 20.5 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
13.01 ft
Streamflow
1,130 cfs
Minor flooding here begins at 20.5 ft, with major flooding at 30 ft. The highest crest on record was 39.92 ft on Sat, Jun 22, 2024.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 18.5 ft | 5.5 ft below |
| Minor flood | 20.5 ft | 7.5 ft below |
| Moderate flood | 24 ft | 11.0 ft below |
| Major flood | 30 ft | 17.0 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 39.92 ft | 2024-06-22 |
| 35.2 ft | 2019-03-15 |
| 34 ft | 2018-06-22 |
| 32.42 ft | 2019-09-15 |
| 23.02 ft | 2020-03-30 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Rock River near Rock Valley, IA | 15.0 mi | Sioux County |
| Big Sioux River at Akron, IA | 15.2 mi | Plymouth County |
| West Branch Floyd River near Struble, IA | 18.0 mi | Sioux County |
| Brule Creek near Elk Point SD | 19.5 mi | Union County |
| Burr Oak Creek near Perkins, IA | 20.6 mi | Sioux 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.