Shiawassee River at Owosso, MI
River level and flood forecast · Shiawassee County
The river is 4.9 ft below flood stage (7 ft).
Flow: 113 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 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 Shiawassee River at Owosso to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 10 ft |
| Moderate flood stage | 9 ft |
| Flood stage | 7 ft |
| Action stage | 6 ft |
| Record crest (April 6, 1947) | 10.35 ft |
What floods at each level
From the National Weather Service, highest first.
- 10.3 ftThe entire area east of Park Street and as far north as Comstock Street will flood. Many homes and businesses will be surronded by water and experience basement flooding.
- 9 ftConsiderable basement flooding occurs in adjacent residential sections from backed up sewers. The south end of Martin Street, Grover Street and Jerome Avenue flood.
- 7 ftFlooding begins in residential area along Jerome Avenue east of South Washington Avenue in Owosso.
- 6 ftSome adjacent lowland floods.
Highest crests on record
- 10.35 ft — April 6, 1947
- 10.3 ft — October 1, 1981
- 10.27 ft — March 20, 1948
- 9.25 ft — April 22, 1975
- 9.1 ft — February 21, 2018
Recent crests: 7.19 ft (June 27, 2021) · 7.28 ft (January 12, 2020) · 9.1 ft (February 21, 2018) · 8.71 ft (April 7, 2017) · 8.45 ft (May 15, 2014)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (OWOM4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.