Ioway Creek at Ames, IA
USGS Site No: 05470500 • Ioway Creek • Story County, IA
Ioway Creek at Ames, IA on the Ioway Creek is currently at 176 cfs (High — 84th percentile for this date) . Gage height: 2.10 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 | 1 | |
| 25th | Low threshold | 5 | |
| 50th (Median) | Normal (median) | 31 | |
| 75th | High threshold | 111 | |
| 95th | Very High threshold | 251 | Today: 176 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 | 184 | — |
| May 27, 2026 | 195 | — |
| May 26, 2026 | 209 | — |
| May 25, 2026 | 223 | — |
| May 24, 2026 | 239 | — |
| May 23, 2026 | 275 | — |
| May 22, 2026 | 317 | — |
| May 21, 2026 | 366 | — |
| May 20, 2026 | 454 | — |
| May 19, 2026 | 566 | — |
| May 18, 2026 | 377 | — |
| May 17, 2026 | 176 | — |
| May 16, 2026 | 162 | — |
| May 15, 2026 | 152 | — |
| Apr 20, 2026 | 309 | — |
| Apr 19, 2026 | 344 | — |
| Apr 18, 2026 | 412 | — |
| Apr 17, 2026 | 560 | — |
| Apr 16, 2026 | 752 | — |
| Apr 15, 2026 | 376 | — |
| Apr 14, 2026 | 355 | — |
| Apr 13, 2026 | 394 | — |
| Apr 12, 2026 | 436 | — |
| Apr 11, 2026 | 489 | — |
| Apr 10, 2026 | 495 | — |
| Apr 9, 2026 | 430 | — |
| Apr 8, 2026 | 495 | — |
| Apr 7, 2026 | 610 | — |
| Apr 6, 2026 | 834 | — |
| Apr 5, 2026 | 1,310 | — |
Station Information
- USGS Site No
- 05470500
- State
- IA
- County
- Story County
- Coordinates
- 42.0226, -93.6305
- Drainage Area
- 204 mi²
- Datum (ft)
- 880.5
- HUC Code
- 07080105
Flood Stage Thresholds
- Action Stage
- 8.0 ft
- Flood Stage
- 10.0 ft
- Moderate Flood
- 14.0 ft
- Major Flood
- 15.5 ft
Currently 7.90 ft below flood stage.
Recent Extremes
- Max discharge
-
2,910 cfsApr 4, 2026
- Min discharge
-
10 cfsFeb 21, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
South Skunk River Below Ioway Creek Near Ames, IAHigh2.0 mi · 447 cfs
-
South Skunk River Near Ames, IAHigh3.1 mi · 265 cfs
-
Fourmile Creek Near Ankeny, IA Ds1High21.3 mi · 50 cfs
-
Indian Creek Near Mingo, IAHigh22.3 mi · 256 cfs
-
Beaver Creek Near Grimes, IAHigh23.7 mi · 288 cfs