North River near Norwalk, IA
River level and flood forecast · Warren County
Normal9.1 ftas of Mon 2:15 PM
The river is 12.9 ft below flood stage (22 ft).
Flow: 435 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Oct 4, 1:18 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 26 ft |
| Moderate flood stage | 25 ft |
| Flood stage | 22 ft |
| Action stage | 17 ft |
| Record crest (June 17, 1990) | 25.33 ft |
What floods at each level
From the National Weather Service, highest first.
- 26 ftWater affects parts of Hwy R63.
- 25 ftWater affects Hwy R57.
- 23 ftSecondary road closures occur.
- 22 ftWater is over Iowa 28 immediately south of Norwalk and threatens several rural gravel roads.
- 17 ftRd closures are possible near creeks adjoining the river.
- 16 ftWater affects agricultural land.
Highest crests on record
- 25.33 ft — June 17, 1990
- 25.3 ft — June 13, 1947
- 25.04 ft — September 11, 2014
- 24 ft — December 15, 2015
- 23.91 ft — June 13, 2008
Recent crests: 18.94 ft (July 11, 2025) · 16.53 ft (July 3, 2024) · 15.36 ft (April 21, 2023) · 18.48 ft (June 9, 2022) · 13.37 ft (July 11, 2021)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NRWI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.