41°30'北緯 / 87°38'西経 / 高度 198 m / 08:34 2026/09/21, America/Chicago (UTC-5)
から: 2026/09/21, 03:20
に: 2026/09/21, 11:30
* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 6 to 9 ft expected. * WHERE...Lake IL, Northern Cook, and Central Cook Counties. * WHEN...Through Wednesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.
Cook
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
NWS Chicago IL
2026/09/21, 03:20