BIG SIOUX RIVER NEAR JEFFERSON, SD
Is BIG SIOUX RIVER NEAR JEFFERSON, SD flooding right now?
No — BIG SIOUX RIVER NEAR JEFFERSON, SD is at 9.45 ft, 21.6 ft below its 31 ft flood stage, as of 54 min ago.
Gauge height
9.45 ft
Streamflow
846 cfs
Minor flooding here begins at 31 ft, with major flooding at 40 ft. The highest crest on record was 44.5 ft on Mon, Jun 24, 2024.
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 28 ft | 18.6 ft below |
| Minor flood | 31 ft | 21.6 ft below |
| Moderate flood | 35 ft | 25.6 ft below |
| Major flood | 40 ft | 30.6 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 44.5 ft | 2024-06-24 |
| 40.42 ft | 2019-03-17 |
| 38.4 ft | 2018-06-26 |
| 36.74 ft | 2019-09-18 |
| 24.55 ft | 2020-04-01 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| BIG SIOUX RIVER AT SIOUX CITY, IA | 7.3 mi | Woodbury County |
| Perry Creek near Hinton, IA | 7.3 mi | Plymouth County |
| Perry Creek at 38th Street at Sioux City, IA | 8.2 mi | Woodbury County |
| Perry Creek near Millnerville, IA | 8.7 mi | Plymouth County |
| Floyd River at James, IA | 10.9 mi | Plymouth 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.