Active Weather Alerts
Flood Watch
Issued: 5:01 PM Aug. 14, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH SATURDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of north central and northeast Illinois including Lee, Ogle, DeKalb, Kane, Kendall, DuPage, Cook, and northern Will counties. * WHEN...From 10 PM CDT this evening through Saturday morning. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas, especially in the vicinity of storm drains that are clogged by leaf debris. Underpasses and viaducts may flood in urban areas, as well. * ADDITIONAL DETAILS... - Another round of torrential rain-producing showers and storms is expected across the watch area tonight. Saturated soils and torrential downpours will set the stage for flash flooding. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts. Have multiple ways to receive warning information including at least one way that will wake you up. &&
River Flood Warning
Issued: 1:16 PM Aug. 14, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO SATURDAY AFTERNOON... * WHAT...Minor flooding is forecast. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...From this afternoon to Saturday afternoon. * IMPACTS...At 9.0 feet, Water begins to be diverted through Thorn Creek Diversion Tunnel. * ADDITIONAL DETAILS... - At 8:00 AM CDT Friday the stage was 8.5 feet. - Forecast...The river is expected to rise above flood stage this afternoon. It may fall below flood stage as soon as late this evening, although additional rainfall in the forecast may prolong flooding impacts. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
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