Au Sable River near McKinley, MI
River level and flood forecast · Alcona County
Normal7.5 ftas of Tue 12:45 AM
Flow: 1,060 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
- 17.24 ft — January 15, 2022
- 13.92 ft — January 15, 1998
- 13.92 ft — March 3, 2009
- 12.9 ft — February 1, 2008
- 12.84 ft — February 4, 2023
Recent crests: 11.81 ft (April 15, 2026) · 12.84 ft (February 4, 2023) · 9.99 ft (March 4, 2022) · 17.24 ft (January 15, 2022) · 8.64 ft (May 4, 2021)
Up and down the river, and nearby
- UpstreamAu Sable River at Mio (Mio Dam), MI
- DownstreamAu Sable River near Curtisville (Alcona Dam), MI
- Au Sable River near Red Oak, MI
- Au Sable River near Au Sable, MI
- North Branch Au Sable River at Kellogg's Bridge near Lovells, MI
- South Branch Au Sable River near Luzerne, MI
- East Branch Au Gres River near Alabaster, MI
- Thunder Bay River near Bolton, MI
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MCKM4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.