Active Weather Alerts
Small Craft Advisory
Issued: 2:26 AM Aug. 3, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CDT MONDAY... * WHAT...North winds to 20 kt and significant waves to 6 ft occasionally to 8 ft. * WHERE...Winthrop Harbor to Calumet Harbor, IL. * WHEN...Until 3 AM CDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Beach Hazard Statement
Issued: 2:24 AM Aug. 3, 2026 – National Weather Service
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 3 AM CDT MONDAY... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 ft expected. * WHERE...Lake IL, Northern Cook, and Central Cook Counties. * WHEN...Until 3 AM CDT Monday. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. &&
River Flood Warning
Issued: 1:30 AM Aug. 3, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Thorn Creek from near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...Until Monday afternoon. * IMPACTS...At 11.0 feet, 187th Street threatened in Glenwood. * ADDITIONAL DETAILS... - At 8:15 PM CDT Sunday, the stage was 11.2 feet. - Forecast...The river has crested and is expected to fall below flood stage early tomorrow afternoon. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
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