Active Weather Alerts
Severe Thunderstorm Warning
Issued: 2:24 AM Apr. 3, 2026 – National Weather Service
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WILL AND SOUTHEASTERN COOK COUNTIES WILL EXPIRE AT 930 PM CDT... The storms which prompted the warning have weakened below severe limits, and have exited the warned area. Therefore, the warning will be allowed to expire. A Tornado Watch remains in effect until 1100 PM CDT for northeastern Illinois. &&
Special Marine Warning
Issued: 2:21 AM Apr. 3, 2026 – National Weather Service
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 945 PM CDT... For the following areas... 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... At 920 PM CDT, severe thunderstorms were located along a line extending from near Waukegan Harbor to 6 nm east of Harrison-Dever Crib to Calumet Harbor, moving northeast at 55 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Severe thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1100 PM CDT for northeastern Illinois. && HAIL...0.00IN; WIND...50KTS
Severe Thunderstorm Warning
Issued: 2:18 AM Apr. 3, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR SOUTHEASTERN COOK COUNTY... At 918 PM CDT, severe thunderstorms were located along a line extending from 15 miles east of Uptown to Worth, moving northeast at 45 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Chicago, Hammond, Calumet City, Englewood, South Shore, Roseland, Chicago Lawn, Oak Forest, Harvey, Blue Island, Dolton, Homewood, Alsip, Chatham, Auburn Gresham, Ashburn, Hyde Park, South Holland, Evergreen Park, Country Club Hills, South Deering, Midlothian, Hazel Crest, Riverdale, and Markham. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1100 PM CDT for northeastern Illinois. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && TORNADO...POSSIBLE; THUNDERSTORM DAMAGE THREAT...CONSIDERABLE; HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...1.00 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...70 MPH
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. &&
Tornado Watch
Issued: 2:03 AM Apr. 3, 2026 – National Weather Service
TORNADO WATCH 89 REMAINS VALID UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST ILLINOIS COOK WILL THIS INCLUDES THE CITIES OF BOLINGBROOK, CHICAGO, EVANSTON, JOLIET, LEMONT, OAK LAWN, ORLAND PARK, PARK FOREST, SCHAUMBURG, AND WILMINGTON.
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 &&
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