DETROIT – A low water advisory and a small craft advisory are in effect in Southeast Michigan.
A low water advisory is in effect until 11 p.m. Wednesday, Oct. 22, 2025.
A small craft advisory is in effect until 4 a.m. Thursday.
The National Weather Service defines a low water advisory as “An advisory to describe water levels which are significantly below average levels over the Great Lakes, coastal marine zones, and any tidal marine area, waterway, or river inlet within or adjacent to a marine zone that would potentially be impacted by low water conditions creating a hazard to navigation.”
On top of the lack of rainfall and already lower water levels, the strong west and southwest winds since Tuesday are responsible for the sudden water level drops, creating dangerous shallow water for boaters.
The alert calls for heightened caution.