Rivers in Utah
Yellowstone River Utah near Altonah
Below flood stage
1.47ftStage
Observed Tue, Sep 22, 3:00 AM MDT
- Flood stage
- 4.70 ft
- Forecast crest
- 1.47 ftTue, Sep 22, 4:00 AM MDT
- Record crest
- 4.93 ft1990
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 5.20 ft |
| Moderate flood | 4.90 ft |
| Minor flood | 4.70 ft |
| Action | 4.30 ft |
- 5.20 ftMajor flooding will occur at 5.20 ft on Yellowstone River. Structures adjacent to the river will receive damage.
- 4.90 ftModerate flooding will occur at 4.90 ft on Yellowstone River. Structures adjacent to the river will receive damage.
- 4.70 ftMinor flooding will occur at 4.70 ft on Yellowstone River. Structures adjacent to the river will receive damage.
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 21, 2026.
Crest history
9 crests on NOAA’s list since 1949.
| # | Date | Stage |
|---|---|---|
| 1 | June 11, 1990 | 4.93 ft |
| 2 | June 19, 1949 | 4.55 ft |
| 3 | June 20, 1999 | 4.50 ft |
| 4 | June 5, 1986 | 4.34 ft |
| 5 | June 19, 1983 | 4.24 ft |
| 6 | June 28, 1995 | 4.22 ft |
| 7 | June 27, 1998 | 3.74 ft |
| 8 | May 27, 2003 | 3.46 ft |
| 9 | May 26, 2001 | 3.36 ft |
Most recent crests
- May 27, 2003: 3.46 ft
- May 26, 2001: 3.36 ft
- June 20, 1999: 4.50 ft
- June 27, 1998: 3.74 ft
- June 28, 1995: 4.22 ft
- June 11, 1990: 4.93 ft
- June 5, 1986: 4.34 ft
- June 19, 1983: 4.24 ft
- June 19, 1949: 4.55 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Colorado Basin River Forecast Center. Forecasts are issued routinely year-round. 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.