Yellowstone River at Corwin Springs, MT
River level and flood forecast · Park County
Normal1.7 ftas of Mon 2 PM
The river is 9.3 ft below flood stage (11 ft).
Flow: 1,560 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 13 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 11 ft |
| Record crest (June 13, 2022) | 14.72 ft |
What floods at each level
From the National Weather Service, highest first.
- 12 ftFlooding begins to affect trailers along the river.
- 11 ftBrushland and adjacent prairie are in flood.
- 10.5 ftThe river has reached bankfull with minor flooding of brushland and prairie.
Highest crests on record
- 14.72 ft — June 13, 2022
- 10.92 ft — June 10, 1996
- 10.91 ft — June 6, 1997
- 10.71 ft — June 17, 1974
- 10.36 ft — June 30, 2011
Recent crests: 7.83 ft (June 10, 2024) · 8.16 ft (May 23, 2023) · 14.72 ft (June 13, 2022) · 7.31 ft (June 6, 2021) · 10.13 ft (June 1, 2020)
Up and down the river, and nearby
- UpstreamYellowstone River at Fishing Bridge, WY
- DownstreamYellowstone River near Livingston, MT
- Gardner River near Mammoth, MT
- Boiling River at Mammoth (YNP), WY
- Lamar River near Tower Falls, WY
- Gallatin River above Deer Creek near Big Sky, MT
- Tantalus Creek at Norris Junction, WY
- Madison River near Grayling, MT
- Gibbon River at Madison Junction, WY
- Hyalite Creek near S 19th near Gallatin Gateway, MT
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CORM8); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.