Active Weather Alerts
Special Marine Warning
Issued: 11:38 PM Jun. 24, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Burns Harbor... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... * Until 845 PM CDT. * At 638 PM CDT, a severe thunderstorm was located 8 nm west of Ohare Airport, or 19 nm west of Wilmette Harbor, moving southeast at 30 knots. HAZARD...Wind gusts to 40 knots and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Calumet Harbor, Indiana Harbor, Montrose Harbor, Burnham Harbor, Hammond Marina, Jackson Park Harbor, Belmont Harbor, and Marina Shores at Dune Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && HAIL...>.75IN; WIND...40KTS
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