BIG SIOUX RIVER AT SIOUX CITY, IA
USGS 06485950 · Iowa · reports discharge (live), gauge height
Reading BIG SIOUX RIVER AT SIOUX CITY, IA…
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USGS 06485950 · Iowa · reports discharge (live), gauge height
What the agencies suggest
Stand back from the shoreline and be aware of surroundingsRhode Island Department of Environmental Management
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 7:30 PM CST · provisional USGS data
Rising · 24 h Below NWS action stage
Gauge height, last 7 days: 169 readings from Oct 29, 8:45 PM CDT to Nov 5, 7:30 PM CST; ranging 10.1 to 11.4 ft; latest 11.4 ft.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Gauge height (ft) |
|---|---|
| Nov 5, 7:30 PM CST | 11.4 |
| Nov 5, 6:30 PM CST | 11.4 |
| Nov 5, 5:30 PM CST | 11.4 |
| Nov 5, 4:30 PM CST | 11.4 |
| Nov 5, 3:30 PM CST | 11.4 |
| Nov 5, 2:30 PM CST | 11.4 |
| Nov 5, 1:30 PM CST | 11.4 |
| Nov 5, 12:30 PM CST | 11.3 |
| Nov 5, 11:30 AM CST | 11.3 |
| Nov 5, 10:30 AM CST | 11.3 |
| Nov 5, 9:30 AM CST | 11.3 |
| Nov 5, 8:30 AM CST | 11.3 |
| Nov 5, 7:30 AM CST | 11.2 |
| Nov 5, 6:30 AM CST | 11.2 |
| Nov 5, 5:30 AM CST | 11.2 |
| Nov 5, 4:30 AM CST | 11.2 |
| Nov 5, 3:30 AM CST | 11.1 |
| Nov 5, 2:30 AM CST | 11.1 |
| Nov 5, 1:30 AM CST | 11.1 |
| Nov 5, 12:30 AM CST | 11.1 |
| Nov 4, 11:30 PM CST | 11 |
| Nov 4, 10:30 PM CST | 11 |
| Nov 4, 9:30 PM CST | 11 |
| Nov 4, 8:30 PM CST | 11 |
| Nov 4, 7:30 PM CST | 11 |
| Nov 4, 6:30 PM CST | 11 |
| Nov 4, 5:30 PM CST | 11 |
| Nov 4, 4:30 PM CST | 11 |
| Nov 4, 3:30 PM CST | 11 |
| Nov 4, 2:30 PM CST | 11 |
| Nov 4, 1:30 PM CST | 11 |
| Nov 4, 12:30 PM CST | 11 |
| Nov 4, 11:30 AM CST | 11 |
| Nov 4, 10:30 AM CST | 11 |
| Nov 4, 9:30 AM CST | 11 |
| Nov 4, 8:30 AM CST | 11 |
| Nov 4, 7:30 AM CST | 11 |
| Nov 4, 6:30 AM CST | 11 |
| Nov 4, 5:30 AM CST | 11 |
| Nov 4, 4:30 AM CST | 11 |
| Nov 4, 3:30 AM CST | 11 |
| Nov 4, 2:30 AM CST | 11 |
| Nov 4, 1:30 AM CST | 11 |
| Nov 4, 12:30 AM CST | 11 |
| Nov 3, 11:30 PM CST | 11 |
| Nov 3, 10:30 PM CST | 11.1 |
| Nov 3, 9:30 PM CST | 11.1 |
| Nov 3, 8:30 PM CST | 11.1 |
| Nov 3, 7:30 PM CST | 11.1 |
| Nov 3, 6:30 PM CST | 11.1 |
| Nov 3, 5:30 PM CST | 11.1 |
| Nov 3, 4:30 PM CST | 11.1 |
| Nov 3, 3:30 PM CST | 11.1 |
| Nov 3, 2:30 PM CST | 11.1 |
| Nov 3, 1:30 PM CST | 11.1 |
| Nov 3, 12:30 PM CST | 11.1 |
| Nov 3, 11:30 AM CST | 11 |
| Nov 3, 10:30 AM CST | 11 |
| Nov 3, 9:30 AM CST | 11 |
| Nov 3, 8:30 AM CST | 11 |
| Nov 3, 7:30 AM CST | 10.9 |
| Nov 3, 6:30 AM CST | 10.9 |
| Nov 3, 5:30 AM CST | 10.8 |
| Nov 3, 4:30 AM CST | 10.8 |
| Nov 3, 3:30 AM CST | 10.7 |
| Nov 3, 2:30 AM CST | 10.7 |
| Nov 3, 1:30 AM CST | 10.7 |
| Nov 3, 12:30 AM CST | 10.7 |
| Nov 2, 11:30 PM CST | 10.6 |
| Nov 2, 10:30 PM CST | 10.6 |
| Nov 2, 9:30 PM CST | 10.6 |
| Nov 2, 8:30 PM CST | 10.6 |
| Nov 2, 7:30 PM CST | 10.6 |
| Nov 2, 6:30 PM CST | 10.5 |
| Nov 2, 5:30 PM CST | 10.5 |
| Nov 2, 4:30 PM CST | 10.4 |
| Nov 2, 3:30 PM CST | 10.5 |
| Nov 2, 2:30 PM CST | 10.4 |
| Nov 2, 1:30 PM CST | 10.4 |
| Nov 2, 12:30 PM CST | 10.4 |
| Nov 2, 11:30 AM CST | 10.4 |
| Nov 2, 10:30 AM CST | 10.4 |
| Nov 2, 9:30 AM CST | 10.4 |
| Nov 2, 8:30 AM CST | 10.4 |
| Nov 2, 7:30 AM CST | 10.4 |
| Nov 2, 6:30 AM CST | 10.4 |
| Nov 2, 5:30 AM CST | 10.4 |
| Nov 2, 4:30 AM CST | 10.4 |
| Nov 2, 3:30 AM CST | 10.3 |
| Nov 2, 2:30 AM CST | 10.3 |
| Nov 2, 1:30 AM CST | 10.3 |
| Nov 2, 12:30 AM CST | 10.3 |
| Nov 1, 11:30 PM CST | 10.3 |
| Nov 1, 10:30 PM CST | 10.3 |
| Nov 1, 9:30 PM CST | 10.3 |
| Nov 1, 8:30 PM CST | 10.3 |
| Nov 1, 7:30 PM CST | 10.3 |
| Nov 1, 6:30 PM CST | 10.2 |
| Nov 1, 5:30 PM CST | 10.2 |
| Nov 1, 4:30 PM CST | 10.2 |
| Nov 1, 3:30 PM CST | 10.2 |
| Nov 1, 2:30 PM CST | 10.2 |
| Nov 1, 1:30 PM CST | 10.2 |
| Nov 1, 12:30 PM CST | 10.2 |
| Nov 1, 11:30 AM CST | 10.2 |
| Nov 1, 10:30 AM CST | 10.2 |
| Nov 1, 9:30 AM CST | 10.2 |
| Nov 1, 8:30 AM CST | 10.2 |
| Nov 1, 7:30 AM CST | 10.2 |
| Nov 1, 6:30 AM CST | 10.2 |
| Nov 1, 5:30 AM CST | 10.2 |
| Nov 1, 4:30 AM CST | 10.2 |
| Nov 1, 3:30 AM CST | 10.2 |
| Nov 1, 2:30 AM CST | 10.2 |
| Nov 1, 1:30 AM CST | 10.2 |
| Nov 1, 1:30 AM CDT | 10.2 |
| Nov 1, 12:30 AM CDT | 10.2 |
| Oct 31, 11:30 PM CDT | 10.2 |
| Oct 31, 10:30 PM CDT | 10.2 |
| Oct 31, 9:30 PM CDT | 10.2 |
| Oct 31, 8:30 PM CDT | 10.2 |
| Oct 31, 7:30 PM CDT | 10.2 |
| Oct 31, 6:30 PM CDT | 10.2 |
| Oct 31, 5:30 PM CDT | 10.3 |
| Oct 31, 4:30 PM CDT | 10.2 |
| Oct 31, 3:30 PM CDT | 10.2 |
| Oct 31, 2:30 PM CDT | 10.2 |
| Oct 31, 1:30 PM CDT | 10.3 |
| Oct 31, 12:30 PM CDT | 10.2 |
| Oct 31, 11:30 AM CDT | 10.2 |
| Oct 31, 10:30 AM CDT | 10.2 |
| Oct 31, 9:30 AM CDT | 10.2 |
| Oct 31, 8:30 AM CDT | 10.2 |
| Oct 31, 7:30 AM CDT | 10.2 |
| Oct 31, 6:30 AM CDT | 10.2 |
| Oct 31, 5:30 AM CDT | 10.2 |
| Oct 31, 4:30 AM CDT | 10.2 |
| Oct 31, 3:30 AM CDT | 10.1 |
| Oct 31, 2:30 AM CDT | 10.2 |
| Oct 31, 1:30 AM CDT | 10.2 |
| Oct 31, 12:30 AM CDT | 10.2 |
| Oct 30, 11:30 PM CDT | 10.2 |
| Oct 30, 10:30 PM CDT | 10.2 |
| Oct 30, 9:30 PM CDT | 10.2 |
| Oct 30, 8:30 PM CDT | 10.2 |
| Oct 30, 7:30 PM CDT | 10.2 |
| Oct 30, 6:30 PM CDT | 10.2 |
| Oct 30, 5:30 PM CDT | 10.1 |
| Oct 30, 4:30 PM CDT | 10.2 |
| Oct 30, 3:30 PM CDT | 10.2 |
| Oct 30, 2:30 PM CDT | 10.1 |
| Oct 30, 1:30 PM CDT | 10.2 |
| Oct 30, 12:30 PM CDT | 10.2 |
| Oct 30, 11:30 AM CDT | 10.1 |
| Oct 30, 10:30 AM CDT | 10.2 |
| Oct 30, 9:30 AM CDT | 10.1 |
| Oct 30, 8:30 AM CDT | 10.1 |
| Oct 30, 7:30 AM CDT | 10.1 |
| Oct 30, 6:30 AM CDT | 10.1 |
| Oct 30, 5:30 AM CDT | 10.1 |
| Oct 30, 4:30 AM CDT | 10.1 |
| Oct 30, 3:30 AM CDT | 10.1 |
| Oct 30, 2:30 AM CDT | 10.1 |
| Oct 30, 1:30 AM CDT | 10.1 |
| Oct 30, 12:30 AM CDT | 10.1 |
| Oct 29, 11:30 PM CDT | 10.1 |
| Oct 29, 10:30 PM CDT | 10.1 |
| Oct 29, 9:30 PM CDT | 10.1 |
| Oct 29, 8:45 PM CDT | 10.1 |
USGS keeps no flow statistics at this gauge, so there is no normal range for flow; the chart shows gauge height as USGS publishes it.
Map of USGS gauge 06485950 and the river around it
Where BIG SIOUX RIVER AT SIOUX CITY, IA sits, with 2 other gauges on the same river.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. Iowa DNR publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Iowa rule, with Iowa DNR's own figure added: 68°F and 75°F.
Species list not on file for this gauge. Check the Iowa Department of Natural Resources: .
Rising over 24 hours: gauge height up 0.40 ft. Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Rising water. Rising over the last 24 hours (gauge height up 0.40 ft). Keep your way back to the bank in sight and watch the level while you fish. “Rising” is our rule of thumb: more than 10% in discharge or 0.2 ft of gauge height in 24 hours, not a USGS or NWS class.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 11.3 ft stage, 1,780 ft³/s at Nov 5, 7:30 PM CST (NWS gauge SXCI4; its stage datum can differ from the USGS gauge height).
Forecasts are issued as needed during times of high water, but are not routinely available.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 8:33 PM CST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.