Rivers in Oregon
Williamson River below Chiloquin
Below flood stage
3.42ftStage
Observed Sun, Sep 20, 9:45 AM PDT
- Flood stage
- 9.00 ft
- Forecast crest
- 3.42 ftSat, Sep 19, 5:00 PM PDT
- Record crest
- 10.56 ft1964
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 11.00 ft |
| Moderate flood | 10.00 ft |
| Minor flood | 9.00 ft |
| Action | 8.00 ft |
- 10.00 ftWidespread flooding is occurring along the Williamson River from the Highway 97 bridge downstream to Upper Klamath Lake. Widespread farm land flooding is occurring. Numerous structures are flooded.
- 9.00 ftThe Williamson River is at flood stage. Water exceeds the channel of the river and begins to impact structures along the river and in low-lying areas near the river.
- 8.00 ftThe Williamson River is near bankfull stage. Water is nearing many structures along and enar the river. Water is close to structures at the Water Wheel Campground near Highway 97.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 20, 2026.
Crest history
3 crests on NOAA’s list since 1964.
| # | Date | Stage |
|---|---|---|
| 1 | December 26, 1964 | 10.56 ft |
| 2 | January 5, 1997 | 10.27 ft |
| 3 | February 12, 1996 | 8.61 ft |
Most recent crests
- January 5, 1997: 10.27 ft
- February 12, 1996: 8.61 ft
- December 26, 1964: 10.56 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the California Nevada River Forecast Center. Forecasts are issued routinely year-round.
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.