Lake Michigan turns dangerous: A Beach Hazards Statement begins late tonight and continues through Wednesday morning. Waves of 4 to 6 feet and dangerous currents will make swimming hazardous along the Lake Michigan shoreline. Southeastern Wisconsin is facing a challenging combination of weather hazards Monday into Tuesday, with dangerous heat, the threat of severe thunderstorms and life-threatening swimming conditions along Lake Michigan. Severe storms are also being trackedDig deeper:The dangerous heat is only part of the story. Stay out of Lake Michigan Tuesday and avoid piers, breakwalls and other structures where dangerous currents are strongest.