Alsek River at Dry Bay near Yakutat AK
USGS Site No: 15129120 • Alsek River • Yakutat City and Borough, AK
Alsek River at Dry Bay near Yakutat AK on the Alsek River is currently at 35,100 cfs (Normal — 70th percentile for this date) . Gage height: 9.09 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 | 14,400 | |
| 25th | Low threshold | 19,300 | |
| 50th (Median) | Normal (median) | 24,700 | |
| 75th | High threshold | 37,600 | Today: 35,100 cfs |
| 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 28, 2026 | 35,500 | — |
| May 27, 2026 | 35,400 | — |
| May 26, 2026 | 34,200 | — |
| May 25, 2026 | 34,500 | — |
| May 24, 2026 | 35,100 | — |
| May 23, 2026 | 35,500 | — |
| May 22, 2026 | 34,900 | — |
| May 21, 2026 | 34,100 | — |
| May 20, 2026 | 33,500 | — |
| May 19, 2026 | 33,200 | — |
| May 18, 2026 | 33,200 | — |
| May 17, 2026 | 31,600 | — |
| May 16, 2026 | 30,600 | — |
| May 15, 2026 | 29,900 | — |
| Feb 23, 2026 | 8,920 | — |
| Feb 22, 2026 | 8,940 | — |
| Feb 21, 2026 | 8,940 | — |
| Feb 20, 2026 | 8,950 | — |
| Feb 19, 2026 | 8,970 | — |
| Feb 18, 2026 | 8,980 | — |
| Feb 17, 2026 | 9,000 | — |
| Feb 16, 2026 | 9,010 | — |
| Feb 15, 2026 | 9,030 | — |
| Feb 14, 2026 | 9,060 | — |
| Feb 13, 2026 | 9,080 | — |
| Feb 12, 2026 | 9,100 | — |
| Feb 11, 2026 | 9,120 | — |
| Feb 10, 2026 | 9,130 | — |
| Feb 9, 2026 | 9,160 | — |
| Feb 8, 2026 | 9,180 | — |
Station Information
- USGS Site No
- 15129120
- State
- AK
- County
- Yakutat City and Borough
- Coordinates
- 59.1928, -138.3339
- Drainage Area
- 11,417 mi²
- Datum (ft)
- 33.9
- HUC Code
- 190104042203
Recent Extremes
- Max discharge
-
130,000 cfsJul 23, 2025
- Min discharge
-
8,920 cfsFeb 23, 2026
Computed from the local daily-values archive.
Nearby Gauges
-
Situk River near Yakutat AKNormal49.1 mi · 326 cfs