(WWJ) Beware if you're headed to the shores of Lake Michigan this week.
The National Weather Services is calling for dangerous beach conditions on Thursday at West Michigan beaches from St. Joseph to Manistee.
Forecasters say they expect strong currents that will make swimming dangerous, along with large waves rearching heights of 3 to 6 ft.
"This is the height most drownings occur at," NWS Grand Rapids warned.
The NWS says these conditions will pose a danger to swimmers and anyone walking on piers, as well as those operating smaller boats. High waves can sweep people off piers, which may be heavily swamped by waves. Strong currents can pull swimmers into deeper water.
Lightning is also likely Thursday as storms roll through the area. (Find the beach forecast at THIS LINK.)
This comes as the Michigan Department of Natural Resources (DNR) has proposed a $500 fine for people who disregard red flag warnings on Lake Michigan and go in the water anyway. A red flag means the water is off-limits because of high waves, strong currents and a high risk of drowning.
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Authorities say it's a real problem, and hefty fines might prevent people from having to be rescued or losing their lives.
The DNR will take public comment on the issue during a DNR Commission meeting on July 15. A final decision is expected next month.