Cooper C at Mouth near Cooper Landing AK
USGS Site No: 15261000 • Kenai Peninsula Borough, AK
Cooper C at Mouth near Cooper Landing AK is currently at 45 cfs (Normal — 62th percentile for this date) . Gage height: 10.05 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 | 24 | |
| 25th | Low threshold | 28 | |
| 50th (Median) | Normal (median) | 33 | |
| 75th | High threshold | 58 | Today: 45 cfs |
| 95th | Very High threshold | 182 |
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 | 46 | — |
| May 27, 2026 | 46 | — |
| May 26, 2026 | 46 | — |
| May 25, 2026 | 46 | — |
| May 24, 2026 | 46 | — |
| May 23, 2026 | 48 | — |
| May 22, 2026 | 52 | — |
| May 21, 2026 | 54 | — |
| May 20, 2026 | 55 | — |
| May 19, 2026 | 54 | — |
| May 18, 2026 | 54 | — |
| May 17, 2026 | 56 | — |
| May 16, 2026 | 61 | — |
| May 15, 2026 | 63 | — |
| Apr 20, 2026 | 22 | — |
| Apr 19, 2026 | 24 | — |
| Apr 18, 2026 | 23 | — |
| Apr 17, 2026 | 22 | — |
| Apr 16, 2026 | 20 | — |
| Apr 15, 2026 | 20 | — |
| Apr 14, 2026 | 20 | — |
| Apr 13, 2026 | 20 | — |
| Apr 12, 2026 | 20 | — |
| Apr 11, 2026 | 20 | — |
| Apr 10, 2026 | 20 | — |
| Apr 9, 2026 | 20 | — |
| Apr 8, 2026 | 20 | — |
| Apr 7, 2026 | 19 | — |
| Apr 6, 2026 | 19 | — |
| Apr 5, 2026 | 19 | — |
Station Information
- USGS Site No
- 15261000
- State
- AK
- County
- Kenai Peninsula Borough
- Coordinates
- 60.4800, -149.8827
- Drainage Area
- 17 mi²
- Datum (ft)
- 436.9
- HUC Code
- 19020302
Flood Stage Thresholds
- Action Stage
- 13.0 ft
- Flood Stage
- 14.0 ft
- Moderate Flood
- 15.0 ft
- Major Flood
- 16.0 ft
Currently 3.95 ft below flood stage.
Recent Extremes
- Max discharge
-
185 cfsJun 20, 2025
- Min discharge
-
19 cfsApr 6, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Kenai River at Cooper Landing AKLow2.6 mi · 1,320 cfs
-
Snow River near Seward AKNormal22.4 mi · 381 cfs
-
Kenai River below Skilak Lake Outlet near Sterling AKVery Low24.5 mi · 2,130 cfs
-
Grouse C at Grouse Lake Outlet near Seward AKNormal26.1 mi · 20 cfs
-
Sixmile C near Hope AKHigh28.2 mi · 898 cfs