Severe · Flood WatchActive alert
Flood Watch issued October 1 at 2:44PM CDT until October 1 at
Affecting Lake; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake
In effect until: Oct 2, 2026, 3:00 AM
Lake; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake
Possible impact zone; conditions develop through 3:00 AM.
A Flood Watch means flooding is possible, but not yet certain, based upon the latest forecasts. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.
Read the original bulletin (official text)
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane, Kendall, La Salle, Lake IL, Lee, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Periods of soaking rain will continue through the afternoon and evening. Rainfall rates may reach 2 inches per hour in localized corridors. Such rainfall rates on saturated soils may lead to flooding particularly in low lying and flood prone areas. - http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™