Tarkio River near Elliot, IA
River level and flood forecast · Montgomery County
Normal2.5 ftas of Mon 2:45 PM
The river is 8.5 ft below flood stage (11 ft).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 17.5 ft |
| Moderate flood stage | 13.5 ft |
| Flood stage | 11 ft |
| Action stage | 10.5 ft |
| Record crest (June 14, 1998) | 14.68 ft |
What floods at each level
From the National Weather Service, highest first.
- 20 ftWater is flowing over the bridge.
- 17.5 ftWater reaches the bottom of the bridge at the gage site.
- 13.5 ftWater begins to flow over 140th Street.
- 11 ftBank overflow begins.
Highest crests on record
- 14.68 ft — June 14, 1998
- 13.57 ft — June 15, 1982
- 13.28 ft — June 14, 1976
- 13.2 ft — June 5, 2008
- 12.98 ft — August 29, 1993
Recent crests: 7.21 ft (July 2, 2024) · 5.73 ft (February 27, 2023) · 5.7 ft (September 21, 2020) · 11.83 ft (May 24, 2019) · 6.71 ft (September 5, 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 (TRKI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.