Waves up to 6 feet and dangerous currents are expected at Lake Michigan beaches in Lake and northern and central Cook counties in Illinois, NWS said.
Swimming conditions will be life-threatening, especially for inexperienced swimmers, NWS said. Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, break walls or other shoreline structures.
For information on swim advisories or bans at Chicago beaches, click here.