Canada
United States
Belgium
France
Ireland
Netherlands
United Kingdom
Austria
Czechia
Germany
Poland
Slovenia
Switzerland
Italy
Spain
Türkiye
Denmark
Finland
Norway
SwedenYellowstone River near Altonah water level
River gauge, Yellowstone River, Utah, United States
Right now
Below flood stage
Water level
- Flow
- 318 cfs
History
The forecast expects the river to rise to 1.96 ft by Friday, October 23 at 12:00 AM. Issued Monday, October 19 at 09:05 AM by NOAA National Weather Service.
What this means
The Yellowstone River near Altonah is at 1.81 ft, in the normal range.
It is 2.89 ft below the flood stage of 4.70 ft.
It has barely moved over the past 24 hours. The forecast expects the river to rise to 1.96 ft by Friday, October 23 at 12:00 AM. In the last month it has stayed between 1.79 ft and 1.96 ft.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 4.93 ftJune 11, 1990
- Forecast peak
- 1.96 ftFriday, October 23 at 12:00 AM
Floating and fishing near Yellowstone River near Altonah
Normal flows mean predictable rapids and good access at most put-ins.
Flood stage here is 4.70 ft, 2.89 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.
What happens at each level
- 5.20 ft
- Major flooding will occur at 5.20 ft on Yellowstone River. Structures adjacent to the river will receive damage.
- 4.90 ft
- Moderate flooding will occur at 4.90 ft on Yellowstone River. Structures adjacent to the river will receive damage.
- 4.70 ft
- Minor flooding will occur at 4.70 ft on Yellowstone River. Structures adjacent to the river will receive damage.
- 1.81 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
Chance of at least minor flooding in October to December: < 5 %.
| Rank | Level | Date |
|---|---|---|
| 1 | 4.93 ft | June 11, 1990 |
| 2 | 4.55 ft | June 19, 1949 |
| 3 | 4.50 ft | June 20, 1999 |
| 4 | 4.34 ft | June 5, 1986 |
| 5 | 4.24 ft | June 19, 1983 |
| 6 | 4.22 ft | June 28, 1995 |
| 7 | 3.74 ft | June 27, 1998 |
| 8 | 3.46 ft | May 27, 2003 |
| 9 | 3.36 ft | May 26, 2001 |
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Yellowstone R @ Bridge Cmpgrnd near AltonahRiver gauge, Yellowstone R @ Bridge Cmpgrnd | 6.34 ft | Very high | −0.05 ft | 2.4 mi |
| Lake Fork River below Moon Lake near Mountain HomeRiver gauge, Lake Fork River | 7.0 cfs | Normal | ±0 | 8 mi |
| Moon Lake ReservoirReservoir | 8,111.01 ft | Normal | 10 mi | |
| Lake Fork River above Moon Lake, near Mountain HomeRiver gauge, Lake Fork River | 178 cfs | Very high | +2.0 cfs | 11 mi |
| Rock Creek near Mountain HomeRiver gauge, Rock Creek | 1.93 ft | Below flood stage | −0.01 ft | 12 mi |
| Uinta River below Powerplant Diversion, near NeolaRiver gauge, Uinta River | 6.05 ft | Very high | −0.02 ft | 13 mi |
| Upper Stillwater ReservoirReservoir | 8,112.18 ft | Normal | 19 mi | |
| Duchesne River near TabionaRiver gauge, Duchesne River | 1.17 ft | Very low | +0.04 ft | 20 mi |
Questions and answers
What is flood stage for the Yellowstone River near Altonah?
The official flood stage is 4.70 ft. The level is currently 2.89 ft below it.
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of Yellowstone River near Altonah today?
On Oct 20, 2026, 09:00 AM MDT, the water level was 1.81 ft. Steady over the last 24 hours.
Is Yellowstone River near Altonah rising or falling?
Steady over the last 24 hours.
Is the level of Yellowstone River near Altonah normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Yellowstone River near Altonah?
The highest level on record is 4.93 ft on June 11, 1990.
Is Yellowstone River near Altonah expected to rise?
The forecast expects the river to rise to 1.96 ft by Friday, October 23 at 12:00 AM.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:09292500(Agency page)- Coordinates
40.51189, -110.34155(WGS84)- Vertical datum
- NAVD88
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 1.81 ft | 2026-10-20 15:00 | Provisional |
| Flow | 318 cfs | 2026-10-20 15:00 | Provisional |
Download
Embed this gauge
Add a live card for this gauge to your website. It updates on its own and links back here.
How to cite
U.S. Geological Survey: Yellowstone River near Altonah (usgs:09292500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/utah/yellowstone-river-near-altonah
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer