Snake River near Irwin, ID
River level and flood forecast · Bonneville County
Forecast to hold near 6.0 ft through Mon, Oct 19, 6 PM.
Flow: 3,600 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 1:08 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Snake River near Irwin to flood, when it floods, and when it's over.
Flood stages
| Action stage | 11 ft |
| Record crest (June 20, 1997) | 15.25 ft |
What floods at each level
From the National Weather Service, highest first.
- 11 ftFields aand low-lying areas near the river from Palisades Dam downstream to near Table Rock Canyon area may experience seep and ponding.
Highest crests on record
- 15.25 ft — June 20, 1997
- 15.01 ft — June 19, 1997
- 13.31 ft — June 4, 1956
- 13.18 ft — June 28, 1954
- 12.69 ft — May 29, 1951
Recent crests: 8.96 ft (January 14, 2022) · 10.02 ft (July 22, 2021) · 11 ft (June 5, 2020) · 10.43 ft (April 26, 2019) · 11.5 ft (June 18, 2018)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PALI1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.