South River Near Ackworth, IA
USGS Site No: 05487470 • South River • Warren County, IA
South River Near Ackworth, IA on the South River is currently at 93 cfs (High — 77th percentile for this date) . Gage height: 5.46 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 2 | |
| 25th | Low threshold | 5 | |
| 50th (Median) | Normal (median) | 15 | |
| 75th | High threshold | 54 | |
| 95th | Very High threshold | 386 | Today: 93 cfs |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 107 | — |
| May 27, 2026 | 121 | — |
| May 26, 2026 | 142 | — |
| May 25, 2026 | 175 | — |
| May 24, 2026 | 225 | — |
| May 23, 2026 | 300 | — |
| May 22, 2026 | 406 | — |
| May 21, 2026 | 668 | — |
| May 20, 2026 | 1,930 | — |
| May 19, 2026 | 8,250 | — |
| May 18, 2026 | 227 | — |
| May 17, 2026 | 61 | — |
| May 16, 2026 | 54 | — |
| May 15, 2026 | 49 | — |
| Apr 20, 2026 | 190 | — |
| Apr 19, 2026 | 229 | — |
| Apr 18, 2026 | 323 | — |
| Apr 17, 2026 | 561 | — |
| Apr 16, 2026 | 1,260 | — |
| Apr 15, 2026 | 882 | — |
| Apr 14, 2026 | 463 | — |
| Apr 13, 2026 | 672 | — |
| Apr 12, 2026 | 702 | — |
| Apr 11, 2026 | 1,160 | — |
| Apr 10, 2026 | 3,800 | — |
| Apr 9, 2026 | 179 | — |
| Apr 8, 2026 | 158 | — |
| Apr 7, 2026 | 189 | — |
| Apr 6, 2026 | 272 | — |
| Apr 5, 2026 | 578 | — |
Station Information
- USGS Site No
- 05487470
- State
- IA
- County
- Warren County
- Coordinates
- 41.3379, -93.4864
- Drainage Area
- 460 mi²
- Datum (ft)
- 769.8
- HUC Code
- 07100008
Flood Stage Thresholds
- Action Stage
- 26.0 ft
- Flood Stage
- 29.0 ft
- Moderate Flood
- 30.0 ft
- Major Flood
- 32.0 ft
Currently 23.54 ft below flood stage.
Recent Extremes
- Max discharge
-
8,810 cfsAug 7, 2025
- Min discharge
-
12 cfsDec 1, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
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Middle River Near Indianola, IAHigh7.9 mi · 254 cfs
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White Breast Creek Near Dallas, IANormal12.0 mi · 55 cfs
-
North River Near Norwalk, IAHigh12.1 mi · 244 cfs
-
Des Moines River Near Swan, IAVery High15.0 mi · 9,970 cfs
-
Des Moines River below Raccoon Riv at Des Moines, IAHigh17.7 mi · 8,630 cfs