Active Weather Alerts
Special Marine Warning
Issued: 2:40 AM Apr. 3, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Northerly Island to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until 1045 PM CDT. * At 940 PM CDT, strong thunderstorms were located along a line extending from 23 nm northwest of New Buffalo to near Hammond Marina, moving northeast at 55 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Calumet Harbor, Indiana Harbor, Burns Harbor, Marina Shores at Dune Harbor, 59th Street Marina, Hammond Marina, and Jackson Park Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && HAIL...0.00IN; WIND...49KTS
Small Craft Advisory
Issued: 2:08 AM Apr. 3, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY... * WHAT...Southwest winds to 30 kt and significant waves to 6 ft occasionally to 8 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 4 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
River Flood Watch
Issued: 3:00 PM Apr. 2, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM FRIDAY MORNING TO SUNDAY MORNING... * WHAT...Flooding is possible. * WHERE...Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge. * WHEN...From Friday morning to Sunday morning. * IMPACTS...At 15.0 feet, Structures threatened at Methodist Campground in Des Plaines. Forest preserve roadways are threatened. * ADDITIONAL DETAILS... - At 9:45 AM CDT Thursday the stage was 10.6 feet. - Forecast...Flood stage may be reached tomorrow morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood &&
Local Radar