Active Weather Alerts
Severe Thunderstorm Warning
Issued: 3:57 AM Apr. 3, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR EAST CENTRAL COOK COUNTY... At 1056 PM CDT, severe thunderstorms were located along a line extending from 12 miles east of Uptown to Posen, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe storms will be near... Chicago, Roseland, South Shore, Blue Island, Chatham, Hyde Park, and South Deering around 1100 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Severe Thunderstorm Warning
Issued: 3:52 AM Apr. 3, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Southern Will County in northeastern Illinois... East central Grundy County in northeastern Illinois... Northeastern Kankakee County in northeastern Illinois... Southeastern Cook County in northeastern Illinois... * Until midnight CDT. * At 1052 PM CDT, severe thunderstorms were located along a line extending from Mokena to near Manhattan to 6 miles southeast of Elwood to Gardner, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Tinley Park, Chicago Heights, Oak Forest, Harvey, Park Forest, Homewood, Matteson, Frankfort, Braidwood, and Wilmington around 1100 PM CDT. Peotone, South Holland, Glenwood, Posen, Dixmoor, Thornton, and Phoenix around 1105 PM CDT. Calumet City, Lansing, Dolton, Steger, Riverdale, Sauk Village, Lynwood, Crete, and Ford Heights around 1110 PM CDT. Manteno and Beecher around 1120 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Special Marine Warning
Issued: 3:24 AM Apr. 3, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until midnight CDT. * At 1024 PM CDT, severe thunderstorms were located along a line extending from 12 nm south of Waukegan Harbor to Wilmette Harbor to 7 nm southwest of Midway Airport, moving east at 30 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Severe thunderstorms will be near... Montrose Harbor, Monroe Harbor, 31st Street Harbor, Harrison-Dever Crib, Burnham Harbor, Belmont Harbor, Diversy Harbor, and DuSable Harbor around 1030 PM CDT. Jackson Park Harbor and 59th Street Marina around 1035 PM CDT. Calumet Harbor around 1040 PM CDT. Hammond Marina around 1045 PM CDT. Indiana Harbor around 1055 PM CDT. HAIL...0.00IN WIND...50KTS
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