Illinois River at Chewey, OK
USGS Site No: 07196090 • Illinois River • Adair County, OK
Illinois River at Chewey, OK on the Illinois River is currently at 688 cfs (Normal — 36th percentile for this date) . Gage height: 3.50 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 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 | 284 | |
| 25th | Low threshold | 541 | |
| 50th (Median) | Normal (median) | 865 | Today: 688 cfs |
| 75th | High threshold | 1,170 | |
| 95th | Very High threshold | 0 |
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 29, 2026 | 726 | — |
| May 28, 2026 | 709 | — |
| May 27, 2026 | 693 | — |
| May 26, 2026 | 742 | — |
| May 25, 2026 | 882 | — |
| May 24, 2026 | 1,100 | — |
| May 23, 2026 | 1,400 | — |
| May 22, 2026 | 1,830 | — |
| May 21, 2026 | 857 | — |
| May 20, 2026 | 881 | — |
| May 19, 2026 | 467 | — |
| May 16, 2026 | 480 | — |
| May 15, 2026 | 502 | — |
| Apr 21, 2026 | 948 | — |
| Apr 20, 2026 | 1,200 | — |
| Apr 19, 2026 | 1,640 | — |
| Apr 18, 2026 | 1,470 | — |
| Apr 17, 2026 | 1,400 | — |
| Apr 16, 2026 | 1,930 | — |
| Apr 15, 2026 | 1,040 | — |
| Apr 14, 2026 | 460 | — |
| Apr 13, 2026 | 490 | — |
| Apr 12, 2026 | 543 | — |
| Apr 11, 2026 | 595 | — |
| Apr 10, 2026 | 640 | — |
| Apr 9, 2026 | 726 | — |
| Apr 8, 2026 | 852 | — |
| Apr 7, 2026 | 1,030 | — |
| Apr 6, 2026 | 1,420 | — |
| Apr 5, 2026 | 2,930 | — |
Station Information
- USGS Site No
- 07196090
- State
- OK
- County
- Adair County
- Coordinates
- 36.1043, -94.7827
- Drainage Area
- 825 mi²
- Datum (ft)
- 800.9
- HUC Code
- 11110103
Flood Stage Thresholds
- Action Stage
- 9.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 15.0 ft
- Major Flood
- 20.0 ft
Currently 8.50 ft below flood stage.
Recent Extremes
- Max discharge
-
11,800 cfsJun 8, 2025
- Min discharge
-
283 cfsJan 20, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Flint Creek Near Kansas, OKNormal7.1 mi · 60 cfs
-
Illinois River Near Watts, OKNormal11.9 mi · 614 cfs
-
Sager Creek Near West Siloam Springs, OKNormal12.0 mi · 13 cfs
-
Flint Creek Near West Siloam Springs, OKVery Low12.6 mi · 14 cfs
-
Baron Fork at Eldon, OKLow13.0 mi · 98 cfs