Rivers in Alaska
Koyukuk River at Hughes
Below flood stage
50.71ftStage
Observed Tue, Sep 29, 9:30 AM UTC
- Flood stage
- 64.00 ft
- Forecast crest
- 50.63 ftTue, Sep 29, 12:00 PM UTC
- Record crest
- 70.80 ft1994
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 70.00 ft |
| Moderate flood | 67.00 ft |
| Minor flood | 64.00 ft |
| Action | 62.00 ft |
- 70.00 ftMajor flood stage. Water enters water treatment plant. Door sill of clinic, washeteria.
- 69.00 ftFloor of city office/post office begins to flood.
- 67.00 ftModerate flood stage. Water surrounds school and flooding of the school begins.
- 66.00 ftFloor of generator.
- 64.50 ftWater starts to go over tank farm berm.
- 64.00 ftWATER BEGINS TO GO OVER TOP OF BANK. Minor flood stage.
Crest history
12 crests on NOAA’s list since 1994.
| # | Date | Stage |
|---|---|---|
| 1 | August 22, 1994 | 70.80 ft |
| 2 | May 9, 2026 | 69.15 ft |
| 3 | August 31, 2025 | 65.02 ft |
| 4 | May 18, 2005 | 62.66 ft |
| 5 | August 22, 2024 | 62.55 ft |
| 6 | June 13, 2023 | 61.66 ft |
| 7 | August 3, 2021 | 60.03 ft |
| 8 | August 3, 2003 | 58.34 ft |
| 9 | May 28, 2004 | 57.33 ft |
| 10 | May 18, 2006 | 57.29 ft |
| 11 | May 23, 2022 | 55.86 ft |
| 12 | May 30, 2007 | 51.24 ft |
Most recent crests
- May 9, 2026: 69.15 ft
- August 31, 2025: 65.02 ft
- August 22, 2024: 62.55 ft
- June 13, 2023: 61.66 ft
- May 23, 2022: 55.86 ft
- August 3, 2021: 60.03 ft
- May 30, 2007: 51.24 ft
- May 18, 2006: 57.29 ft
- May 18, 2005: 62.66 ft
- May 28, 2004: 57.33 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Alaska Pacific River Forecast Center. Forecasts are issued routinely during the warm season, and as needed at other times of the year. Stage may be affected by ice.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.