Au Sable River at Mio (Mio Dam), MI
River level and flood forecast · Oscoda County
Normal3.0 ftas of Tue 12:45 AM
Flow: 945 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.
Highest crests on record
- 8.32 ft — April 14, 2026
- 6.37 ft — April 1, 1998
- 6.33 ft — October 24, 2017
- 6.2 ft — March 21, 1995
- 6.16 ft — September 30, 1986
Recent crests: 8.32 ft (April 14, 2026) · 5.23 ft (April 5, 2023) · 5.25 ft (March 31, 2022) · 4.05 ft (December 16, 2021) · 5.4 ft (July 21, 2021)
Up and down the river, and nearby
- UpstreamAu Sable River near Red Oak, MI
- DownstreamAu Sable River near McKinley, MI
- North Branch Au Sable River at Kellogg's Bridge near Lovells, MI
- South Branch Au Sable River near Luzerne, MI
- Au Sable River near Curtisville (Alcona Dam), MI
- Manistee River near Grayling, MI
- Au Sable River near Au Sable, MI
- Pigeon River (N Lower MI) near Vanderbilt, MI
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MIOM4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.