Active Weather Alerts
River Flood Warning
Issued: 1:01 AM Aug. 15, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING... * 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 morning. * IMPACTS...At 13.5 feet, Chicago Heights Glenwood Road threatened in Glenwood. Residential parking lots threatened along Margaret Street in Thornton. * ADDITIONAL DETAILS... - At 7:45 PM CDT Friday the stage was 9.4 feet. - Forecast...The river may fall to near flood stage late this evening, although additional rainfall in the forecast may prolong flooding impacts, resulting in another rise on Saturday into Saturday evening. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
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